Academic literature on the topic 'Phytochemicals - Therapeutic use'
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Journal articles on the topic "Phytochemicals - Therapeutic use"
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Harrison, Andrew M., Fabrice Heritier, Bennett G. Childs, J. Michael Bostwick, and Mikhail A. Dziadzko. "Systematic Review of the Use of Phytochemicals for Management of Pain in Cancer Therapy." BioMed Research International 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/506327.
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Pain in cancer therapy is a common condition and there is a need for new options in therapeutic management. While phytochemicals have been proposed as one pain management solution, knowledge of their utility is limited. The objective of this study was to perform a systematic review of the biomedical literature for the use of phytochemicals for management of cancer therapy pain in human subjects. Of an initial database search of 1,603 abstracts, 32 full-text articles were eligible for further assessment. Only 7 of these articles met all inclusion criteria for this systematic review. The average relative risk of phytochemical versus control was 1.03 [95% CI 0.59 to 2.06]. In other words (although not statistically significant), patients treated with phytochemicals were slightly more likely than patients treated with control to obtain successful management of pain in cancer therapy. We identified a lack of quality research literature on this subject and thus were unable to demonstrate a clear therapeutic benefit for either general or specific use of phytochemicals in the management of cancer pain. This lack of data is especially apparent for psychotropic phytochemicals, such as theCannabisplant (marijuana). Additional implications of our findings are also explored.
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Dey, Priyankar, Somit Dutta, Anurag Chowdhury, Abhaya Prasad Das, and Tapas Kumar Chaudhuri. "Variation in Phytochemical Composition Reveals Distinct Divergence of Aloe vera (L.) Burm.f. From Other Aloe Species: Rationale Behind Selective Preference of Aloe vera in Nutritional and Therapeutic Use." Journal of Evidence-Based Complementary & Alternative Medicine 22, no. 4 (March 23, 2017): 624–31. http://dx.doi.org/10.1177/2156587217698292.
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In the present study, we have phytochemically characterized 5 different abundant Aloe species, including Aloe vera (L.) Burm.f., using silylation followed by Gas Chromatography-Mass Spectrometry technique and compared the data using multivariate statistical analysis. The results demonstrated clear distinction of the overall phytochemical profile of A vera, highlighted by its divergent spatial arrangement in the component plot. Lowest correlation of the phytochemical profiles were found between A vera and A aristata Haw. (−0.626), whereas highest correlation resided between A aristata and A aspera Haw. (0.899). Among the individual phytochemicals, palmitic acid was identified in highest abundance cumulatively, and carboxylic acids were the most predominant phytochemical species in all the Aloe species. Compared to A vera, linear correlation analysis revealed highest and lowest correlation with A aspera ( R2 = 0.9162) and A aristata ( R2 = 0.6745), respectively. Therefore, A vera demonstrated distinct spatial allocation, reflecting its greater phytochemical variability.
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Bidlack, Wayne R. "Tyler’s Herbs of Choice: The Therapeutic Use of Phytochemicals." Journal of the American College of Nutrition 20, no. 3 (June 2001): 265–66. http://dx.doi.org/10.1080/07315724.2001.10719043.
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Innocent Izuchukwu Ujah, Chukwunonso Anthony Nsude, Onuabuchi Nnenna Ani, Uchenna Blessing Alozieuwa, Innocent Oluwaseun Okpako, and Amos Ejiofor Okwor. "Phytochemicals of neem plant (Azadirachta indica) explains its use in traditional medicine and pest control." GSC Biological and Pharmaceutical Sciences 14, no. 2 (February 28, 2021): 165–71. http://dx.doi.org/10.30574/gscbps.2021.14.2.0394.
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Neem Azadirachta indica is a useful traditional medicinal plant growing in Nigeria, India, and America. The phytochemicals and the biopesticidal components present were ascertained. The results showed that saponins, steroids and terpenes were mostly present, while tannins and glycosides were moderately present, and alkaloids, flavonoids, phenols and oxalic acid were least present. The presence of these phytochemical could account for the therapeutic uses of neem.
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Lee, Tzu-Ying, and Yu-Hsin Tseng. "The Potential of Phytochemicals in Oral Cancer Prevention and Therapy: A Review of the Evidence." Biomolecules 10, no. 8 (August 6, 2020): 1150. http://dx.doi.org/10.3390/biom10081150.
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The etiological factors of oral cancer are complex including drinking alcohol, smoking tobacco, betel quid chewing, human papillomavirus infection, and nutritional deficiencies. Understanding the molecular mechanism of oral cancer is vital. The traditional treatment for patients with oral squamous cell carcinoma (e.g., surgery, radiotherapy, and chemotherapy) and targeted molecular therapy still have numerous shortcomings. In recent years, the use of phytochemical factors to prevent or treat cancer has received increasing attention. These phytochemicals have little or no toxicity against healthy tissues and are thus ideal chemopreventive agents. However, phytochemicals usually have low water solubility, low bioavailability, and insufficient targeting which limit therapeutic use. Numerous studies have investigated the development of phytochemical delivery systems to address these problems. The present article provides an overview of oral cancer including the etiological factors, diagnosis, and traditional therapy. Furthermore, the classification, dietary sources, anticancer bioactivity, delivery system improvements, and molecular mechanisms against oral cancer of phytochemicals are also discussed in this review.
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Ahmad, Syed Sayeed, Tayyaba Waheed, Sayed Rozeen, Sufia Mahmood, and Mohammad Amjad Kamal. "Therapeutic Study of Phytochemicals Against Cancer and Alzheimer’s Disease Management." Current Drug Metabolism 20, no. 13 (January 23, 2020): 1006–13. http://dx.doi.org/10.2174/1389200221666200103092719.
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Background: Phytochemicals are a significant piece of conventional prescription and have been researched in detail for conceivable consideration in current drug discovery. Medications and plants are firmly identified for traditional prescriptions and ethnomedicines that are basically arranged from plants. Recognizing the medical advantages of phytochemicals is of fundamental advancement in medication and useful sustenance improvement. Secondary metabolites of different plants have been customarily used for the improvement of human wellbeing. The phytochemicals are diets rich, which can upgrade neuroplasticity and protection from neurodegeneration. Results: Phytochemicals keep on entering clinical preliminaries or provide leads for the synthesis of medicinal agents. Phytochemicals are a great extent cancer prevention agents in nature at lower concentrations and under favorable cell conditions that adequately avoid the oxidation of different molecules that have an ability to produce free radicals and thus protect the body. Conclusion: The purpose of this review is to describe the use of phytochemicals against cancer and Alzheimer’s disease treatment.
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Lee, Gihyun, and Hyunsu Bae. "Therapeutic Effects of Phytochemicals and Medicinal Herbs on Depression." BioMed Research International 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/6596241.
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Background. Depression is a recurrent, common, and potentially life-threatening psychiatric disease related to multiple assignable causes. Although conventional antidepressant therapy can help relieve symptoms of depression and prevent relapse of the illness, complementary therapies are required due to disadvantage of the current therapy such as adverse effects. Moreover, a number of studies have researched adjunctive therapeutic approaches to improve outcomes for depression patients. Purpose. One potential complementary method with conventional antidepressants involves the use of medicinal herbs and phytochemicals that provide therapeutic benefits. Studies have revealed beneficial effects of medical herbs and phytochemicals on depression and their central nervous system mechanism. Here, we summarize the current knowledge of the therapeutic benefits of phytochemicals and medicinal herbs against depression and describe their detailed mechanisms. Sections. There are two sections, phytochemicals against depression and medical herbs against depression, in this review. Conclusion. Use of phytomedicine may be an alternative option for the treatment of depression in case conventional drugs are not applicable due to their side effects, low effectiveness, or inaccessibility. However, the efficacy and safety of these phytomedicine treatments for depression have to be supported by clinical studies.
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Heng, Win Sen, Frank A. E. Kruyt, and Shiau-Chuen Cheah. "Understanding Lung Carcinogenesis from a Morphostatic Perspective: Prevention and Therapeutic Potential of Phytochemicals for Targeting Cancer Stem Cells." International Journal of Molecular Sciences 22, no. 11 (May 27, 2021): 5697. http://dx.doi.org/10.3390/ijms22115697.
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Lung cancer is still one of the deadliest cancers, with over two million incidences annually. Prevention is regarded as the most efficient way to reduce both the incidence and death figures. Nevertheless, treatment should still be improved, particularly in addressing therapeutic resistance due to cancer stem cells—the assumed drivers of tumor initiation and progression. Phytochemicals in plant-based diets are thought to contribute substantially to lung cancer prevention and may be efficacious for targeting lung cancer stem cells. In this review, we collect recent literature on lung homeostasis, carcinogenesis, and phytochemicals studied in lung cancers. We provide a comprehensive overview of how normal lung tissue operates and relate it with lung carcinogenesis to redefine better targets for lung cancer stem cells. Nine well-studied phytochemical compounds, namely curcumin, resveratrol, quercetin, epigallocatechin-3-gallate, luteolin, sulforaphane, berberine, genistein, and capsaicin, are discussed in terms of their chemopreventive and anticancer mechanisms in lung cancer and potential use in the clinic. How the use of phytochemicals can be improved by structural manipulations, targeted delivery, concentration adjustments, and combinatorial treatments is also highlighted. We propose that lung carcinomas should be treated differently based on their respective cellular origins. Targeting quiescence-inducing, inflammation-dampening, or reactive oxygen species-balancing pathways appears particularly interesting.
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Kang, Hara. "MicroRNA-Mediated Health-Promoting Effects of Phytochemicals." International Journal of Molecular Sciences 20, no. 10 (May 23, 2019): 2535. http://dx.doi.org/10.3390/ijms20102535.
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Phytochemicals are known to benefit human health by modulating various cellular processes, including cell proliferation, apoptosis, and inflammation. Due to the potential use of phytochemicals as therapeutic agents against human diseases such as cancer, studies are ongoing to elucidate the molecular mechanisms by which phytochemicals affect cellular functions. It has recently been shown that phytochemicals may regulate the expression of microRNAs (miRNAs). MiRNAs are responsible for the fine-tuning of gene expression by controlling the expression of their target mRNAs in both normal and pathological cells. This review summarizes the recent findings regarding phytochemicals that modulate miRNA expression and promote human health by exerting anticancer, photoprotective, and anti-hepatosteatosis effects. Identifying miRNAs modulated by phytochemicals and understanding the regulatory mechanisms mediated by their target mRNAs will facilitate the efforts to maximize the therapeutic benefits of phytochemicals.
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Asanaliyar, Meharban, and Pratibha Nadig. "Syzygium cumini (jamun) therapeutic potential: a comprehensive review on phytochemical constituents and emphasis on its pharmacological actions related to diabetic intervention." International Journal of Basic & Clinical Pharmacology 9, no. 2 (January 24, 2020): 363. http://dx.doi.org/10.18203/2319-2003.ijbcp20200192.
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Syzygium cumini or Eugenia Jambolana Lam is a traditional medicinal plant very native to the Indian and Asian sub-continent. It is commonly known as black plum or jamun. Various plants parts of the tree are known for ethno-medicinal uses, and in particular, the fruits of Jamun tree are well known for medicinal uses and preparation of health drinks. Studies have shown that the berries contain carbohydrates, minerals and the pharmacologically active phytochemicals. The active phytochemical includes flavonoids, terpenes, and anthocyanins. Ayurvedic and Indian Folk Medicine have already mentioned the use of jamun for diabetic treatment even before the advent of insulin. The bark, fruit pulp, seeds and the leaves are evaluated in the crude form as well as extracts in various diabetic models. Further, bioactive phytochemicals are extracted using in vitro assays, some of them such as vitalboside-A, mycominose are also characterized with spectroscopic analysis. This review article is intended to compile Syzygium cumini’s therapeutic potential with special emphasis on the phytochemical constituents and its pharmacological activities related to diabetic intervention through recent studies conducted in last one decade. It also addresses the clinical and toxicological studies.
Dissertations / Theses on the topic "Phytochemicals - Therapeutic use"
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Zhang, Qi. "The study of novel dioxin antagonist-euxanthone and its derivatives." HKBU Institutional Repository, 2003. http://repository.hkbu.edu.hk/etd_ra/507.
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Xiao, Jia, and 肖佳. "Protective mechanisms of garlic and wolfberry derivatives on acute and chronic liver injury animal models." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hdl.handle.net/10722/193039.
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Liver is one of the most important organs in the body that maintains the homeostasis of metabolism, immunity, detoxification and hematopoiesis. A large number of acute and chronic intoxications and diseases can influence the normal functions of the liver, leading to irreversible liver damage and even cancer. Currently, applying herbs or herbal derivatives in the prevention and therapy of acute and chronic liver injury receive numerous attentions since they hold great potentials as food supplements in the treatment strategy of liver injuries. There were two major hypotheses of this current work namely: a)In CCl4-inducedacute liver injury animal model, whether pre-treatment with garlic derived S-allylmercaptocysteine (SAMC)or Wolfberry derived Lycium barbarum polysaccharides (LBP)could reduce liver injury, oxidative stress and inflammation partly through a NF-κB-dependent pathway. SAMC or LBP could also promote liver regeneration after acute damage. b)In non-alcoholic steatohepatitis (NASH)-induced chronic liver injury animal model, whether administration of SAMC or LBP along with high-fat diet induction could attenuate liver injury, lipid metabolism dysfunction, fibrosis, oxidative stress, inflammation, apoptosis and transcription factors activities in the liver. In this study, SAMC and LBP were applied in a carbon tetrachloride (CCl4) induced mice acute liver injury model and a high-fat diet induced non-alcoholic steatohepatitis model. In the acute model, an eight-hour CCl4treatment induced severe acute liver injury. Pre-treatment with SAMC or LBP (1) attenuated hepatic histological injury; (2) reduced serum ALT level; (3) ameliorated oxidative stress; (4) reduced expression of inflammatory mediators and chemokines; (5) promoted liver regeneration; and (6) decreased NF-κB activity. Vehicle-treated SAMC or LBP did not exhibit obvious adverse effects on healthy mice. In the chronic NASH model, when compared with control rats, NASH rats showed typical clinical features of human NASH patients, including increased liver injury, lipid content, oxidative stress, inflammation, and apoptosis. In comparison, SAMC or LBP co-treated NASH rats showed (1) reduced fat accumulation, cellular necrosis, collagen formation, as well as reduced serum ALT and free fatty acids levels; (2) restored insulin resistance related kinase phosphorylation status which had been altered during NASH; (3) reduced pro-fibrogenic factors; (4) restored antioxidant enzymes, as well as attenuated end-products of lipid peroxidation and NO production through a cytochrome P450 2E1-dependent pathway; (5) reduced hepatic pro-inflammatory mediators and chemokines production; (6) diminished activities of nuclear transcription factors (NF-κB and AP-1); and (7) ameliorated hepatic cellular apoptosis through a p53-dependentpathwaywhich was under the regulation of LKB1/AMPK axis and PI3K/Akt axis. In conclusion, our data demonstrated that SAMC or LBP consumption protects the liver from acute injury caused by CCl4and chronic damages caused by a high-fat diet. These effects were mainly mediated by the amelioration of hepatic oxidative stress, inflammation, and cell death. In the NASH model, SAMC or LBP also improved hepatic lipid metabolism, fibrosis, and apoptosis. Therefore, the present study proposed that both garlic and Wolfberry, which are novel hepatoprotective herbal products, can be taken as part of the daily dietary supplements in the prevention of acute and chronic liver injury.published_or_final_version
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Lee, Tak-wing Davy, and 李德榮. "Effect of garlic derivative s-allylcysteine (SAC) on the growth of human esophagealand nasopharyngeal carcinoma cells." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B45011278.
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Ballentine, Regina. "Chemical Characterization of Pseudognaphalium obtusifolium by Gas Chromatography - Mass Spectrometry (GC-MS) to Assess Potential Therapeutic Phytochemicals and Toxicological Concerns Using Simulated Use Conditions." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/6052.
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Chemical Characterization of Pseudognaphalium obtusifolium by Gas Chromatography – Mass Spectrometry (GC-MS) to Assess Potential Therapeutic Phytochemicals and Toxicological Concerns Using Simulated Use Conditions
By Regina Ballentine
Virginia Commonwealth University, 2019
Director: Sarah C. Rutan, Professor, Department of Chemistry
Currently, there is an increasing demand for natural therapies and herbal products to treat various ailments. It is generally believed that natural therapies have fewer side-effects than traditional western medicine; however, they are often used in different strengths and formulations without consistency of the levels of target compounds or knowledge about toxicity. Due to this growing trend, a comprehensive chemical evaluation of plants used for medicinal purposes is necessary.
Pseudognaphalium obtusifolium is a plant that has been used historically by Native Americans as an herbal medicine. It is a flowering plant belonging to the Asteraceae family indigenous to the Eastern United States. There are documented accounts of the Native Americans using the herb therapeutically. Reportedly, they used the plant to prepare tea and as filler for bedding. Additionally, they smoked the plant material.
To date, there has been little research published on the chemical composition of this plant. Thus, the objective of this work was to conduct a chemical survey of P. obtusifolium using methodologies that would simulate the three historical routes of administration (tea, bedding material, and smoke inhalation).
To determine the types of compounds that may be found in the plant, initial experiments using pressurized solvent extraction (PSE) with an ethanolic solvent were performed followed by analysis using gas chromatography – mass spectrometry (GC-MS) in scan mode. This extraction technique enabled a broad range of compounds to be identified.
For the analysis of the tea, the leaves and the flowers were ground and analyzed separately. The “tea” simulation was then performed using a water extraction which was then back extracted into dichloromethane for GC-MS analysis in Selected Ion Monitoring (SIM) mode. Seventeen target compounds (terpenes, terpinoids, flavanoids, etc.) were quantified using this method.
A bedding material simulation was performed using headspace solid phase micro-extraction (HS-SPME) to collect the volatile and/or semi-volatile components of the headspace. The compounds collected on the SPME fiber were then analyzed by GC-MS in scan and SIM modes to qualitatively and quantitatively determine the types of chemical compounds (most of which were terpenes) that may be off-gassed from bedding material. This analysis compared levels of compounds in two different crop years and four terpene compounds were quantified.
To simulate smoking of the plant material, the leaves and flowers were fashioned into smoking articles. Sample collection was performed by a smoking machine and smoke condensate was collected. The smoke condensate was then analyzed by GC-MS in scan mode. As combustion and pyrolysis of plant material are known to produce toxic products, specific potentially harmful compounds were investigated and quantified.
This chemical analysis of P. obtusifolium identified target compounds that can be found in the three simulated usage forms. Identification of these compounds gives insight on why the Native Americans may have used P. obtusifolium as an herbal medicine. Among the detected compounds, there were many unknowns. Elucidating these unknown compounds will be important in the effort to understand the full chemical profile of this plant.
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Mngeni, Nasipi Zamanala. "Bioactive compounds from selected medicinal plants used in antidiabetic treatment." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2665.
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Thesis (MTech (Chemistry))--Cape Peninsula University of Technology, 2017.The continued use and popularity of plant-based traditional medicine demands scientific validation of the therapeutic potential of the medicinal plants used in disease management and treatment. These medicinal plants are to be evaluated for phytochemical constituents and pharmacologically screened for their bioactivity and include the isolation and identification of their bioactive compounds. The diabetes tea and its eight individual plants constituents were collected from Sing Fefur Herbs in McGregor, Western Cape. The plant material was ground to a fine powder form using a milling machine. The powdered plant material was sequentially extracted with hexane, 1:1 DCM, DCM:MeOH, MeOH and water. The antioxidant activity of the tea and its plants was evaluated with comparison to the antioxidant activity of brewed rooibos tea in literature. The concentration of antioxidants in the plants and the tea were found to be significantly high. The ORAC assay results of the water extracts were significantly higher than that of rooibos tea in all plants. Salvia africana-caerulea water extract ORAC results were 14147.10±1.02 μmol TE/g and this is 10 times better than the brewed rooibos tea results of 1402±44.1 μmol TE/g. The alpha-amylase enzyme inhibition assay showed no significant results while the alpha-glucosidase enzyme inhibition assays showed significant results in some of the extracts. The highest inhibitory activity towards alpha-glucosidase was found in the Urtica urens hexane extract and the Thymus vulgaris hexane extract (69.66% and 68.43%, respectively). This observation suggests that alpha-glucosidase enzyme is inhibited mostly by the less polar or medium polarity chemical components of the plant extracts. The crude plant extracts that showed significant activity in the antidiabetic bioassays were further subjected to cytotoxicity assay to ascertain the safety of extracts. The T. vulgaris DCM extract, Salvia officinalis DCM extract and Salvia officinalis hexane extract showed a cell growth inhibition of 54.91%, 62.14% and 63.87% at 100 μg/ml, respectively. The Salvia africana-caerulea DCM extract showed a cell growth inhibition of 59.10% at 50 μg/ml and 62.14% at 100 μg/ml. In the cytotoxicity analysis Salvia africana-caerulea DCM extract is the only extract that showed cell viability below 50% for both concentrations. Phytochemical screening of selected methanolic and aqueous extracts of the diabetes tea and the Salvia africana-caerulea showed the presence of alkaloids, sugars, flavonoids, glycosides, proteins & amino acids, phenolics & tannins and saponins. Furthermore isolation, purification and analysis of two Salvia africana-caerulea crude extracts (DCM and DCM:MeOH) were done in order to try and obtain pure compounds. The compound characterization was done through the use of chromatographic techniques. Thin layer chromatography (TLC), flash chromatography and column chromatography resulted in the generation of 29 fractions. Spectroscopic techniques utilized for chemical structural elucidation for compounds of interest included Liquid chromatography mass spectrometry and Nuclear Magnetic Resonance Spectroscopy. Of all the fractions generated, DM 23 was the purest and its structural elucidation was attempted.
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Zhang, Zhu. "Exploration of the anticancer mechanisms of novel chemotherapeutic adjuvants involving autophagy and immune system reprogramming in the treatment of pancreatic cancer." HKBU Institutional Repository, 2020. https://repository.hkbu.edu.hk/etd_oa/755.
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Pancreatic cancer is known to be one of the most life-threatening cancers characterized by aggressive local invasion and distant metastasis. The high basal level of autophagy in pancreatic cancer may be responsible for the low chemotherapeutic drug response rate and poor disease prognosis. However, the clinical application of autophagy inhibitors was unsatisfactory due to their toxicity and minimal single-agent anticancer efficacy. Hence, oncologists begin to consider the tumor microenvironment when exploring new drug targets. In the present study, the anti-tumorigenic mechanisms of two major phytochemicals derived from Chinese medicinal herbs had been investigated against pancreatic cancer development. Calycosin is a bioactive isoflavonoid of the medicinal plant Astragalus membranaceus. Our results have shown that calycosin inhibited the growth of various pancreatic cancer cells both in vitro and in vivo by inducing cell cycle arrest and apoptosis. Alternatively, calycosin also facilitated MIA PaCa-2 pancreatic cancer cell migration in vitro and increased the expression of epithelial-mesenchymal transition (EMT) biomarkers in vivo. Further mechanistic study suggests that induction of the Raf/MEK/ERK pathway and facilitated polarization of M2 tumor-associated macrophage in the tumor microenvironment both contribute to the pro-metastatic potential of calycosin in pancreatic cancer. These events appear to be associated with calycosin-evoked activation of TGF-β signaling, which may explain the paradoxical drug actions due to the dual roles of TGF-β as both tumor suppressor and tumor promoter in pancreatic cancer development under different conditions. Isoliquiritigenin (ISL) is a chalcone obtained from the medicinal plant Glycyrrhiza glabra, which can be a precursor for chemical conversion to form calycosin. Results have shown that ISL decreased the growth and EMT of pancreatic cancer cells in vitro, probably due to modulation of autophagy. ISL-induced inhibition of autophagy subsequently promoted reactive oxygen species (ROS) production, leading to induction of apoptosis in pancreatic cancer cells. Such phenomenon also contributed to the synergistic growth-inhibitory effect in combined treatment with the orthodox chemotherapeutic drug 5-fluorouracil. In addition, ISL-induced tumor growth inhibition in vivo was further demonstrated in a tumor xenograft mice model of pancreatic cancer. ISL promoted apoptosis and inhibited autophagy in the tumor tissues. Study on immune cells indicates that ISL could reduce the number of myeloid-derived suppressor cells (MDSCs) both in tumor tissue and in peripheral blood, while CD4+ and CD8+ T cells were increased correspondingly. In vitro test has revealed that ISL inhibited the polarization of M2 macrophage along with its inhibition of autophagy in M2 macrophage. These immunomodulating effects of ISL had reversed the pro-invasive role of M2 macrophage in pancreatic cancer.In conclusion, calycosin acts as a "double-edged sword" on the growth and metastasis of pancreatic cancer, which may be related to the dual roles of TGF-β and its influence on the tumor microenvironment. Alternatively, ISL consistently inhibited the growth and metastatic drive of pancreatic cancer through regulation of autophagy and reprogramming of the immune system. The differential modes of action of these compounds have provided new insights in the development of effective pancreatic cancer treatment adjuvants.
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Adefuye, Ogheneochuko Janet. "Anti-diabetic and phytochemical analysis of sutherlandia frutescens extracts." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/3549.
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In Africa, the importance of medicinal plants in folklore medicine and their contribution to primary healthcare is well recognized. Across the continent, local herbal mixtures still provide the only therapeutic option for about 80% of the population. The vast floral diversity and the intrinsic ethnobotanical knowledge has been the backbone of localized traditional herbal medical practices. In Africa, an estimated 5400 of the 60000 described plant taxa possess over 16300 therapeutic uses. Similarly, with a therapeutic flora comprising of approximately 650 species, herbal medical practitioners in South Africa, make use of a plethora of plants to treat different human diseases and infections. Over the years, studies have identified numerous plant species with potential against chronic metabolic diseases including type 2 diabetes mellitus (T2DM). Globally, the incidence and prevalence of T2DM have reached epidemic proportions affecting people of all ages, nationalities and ethnicity. Considered the fourth leading cause of deaths by disease, T2DM is a global health crisis with an estimated diagnosis and mortality frequency of 1 every 5 seconds and 1 every 7 seconds respectively. Though the exact pathophysiology of T2DM is not entirely understood, initial peripheral insulin resistance in adipose tissue, liver, and skeletal muscle with subsequent pancreatic β-cell dysfunction resulting from an attempt to compensate for insulin resistance is a common feature of the disease. The current approach to treating T2DM is the use of oral antidiabetic agents (OAAs), insulin, and incretin-based drugs in an attempt to achieve glycaemic control and maintain glucose homeostasis. However, conventional anti-T2DM drugs have been shown to have limited efficacies and serious adverse effects. Hence, the need for newer, more efficacious and safer anti-T2DM agents. Sutherlandia frutescens subsp. microphylla is a flowering shrub of the pea family (Fabaceae/Leguminaceae) found mainly in the Western Cape and Karoo regions of Southern Africa. Concoctions of various parts of the plant are used in the management of different ailments including T2DM. However, despite extensive biological and pharmacological studies, few analyses exist of the chemical constituents of S. frutescens and no Triple Time of Flight Liquid Chromatography with Mass Spectrometry (Triple TOF LC/MS/MS) analysis has been performed. The initial aim of this study was to investigate the phytochemical profile of hot aqueous, cold aqueous, 80% ethanolic, 100% ethanolic, 80% methanolic and 100% methanolic extracts of a single source S. frutescens plant material using colorimetric and spectrophotometric analysis. The hot aqueous extractant was found to be the best extractant for S. frutescens, yielding 1.99 g of crude extract from 16 g fresh powdered plant material. This data suggests that application of heat and water as the extractant (hot aqueous) could play a vital role in extraction of bioactive compounds from S. frutescens and also justifies the traditional use of a tea infusion of S. frutescens. Colorimetric analysis revealed the presence of flavonoids, flavonols, tannins, and phenols in all extracts with varying intensity. The organic extracts 100% methanol, 80% and 100% ethanol exhibited high color intensity (+++) for flavonoids and flavonols respectively, while all the extracts exhibited a moderate color intensity (++) for tannins and phenols. Spectrophotometric analysis of S. frutescens extracts revealed that all the organic extracts contained a significantly higher concentration (in mg/g of extract) of flavonols and tannins when compared to the aqueous extracts. All extracts contained approximately equal levels of phenols. These data confirm the presence of all four groups of bioactive phytocompounds in the S. frutescens extracts used in this study, and also confirm that different solvent extractants possess the capability to differentially extract specific groups of phytocompounds. in individual extracts. Further comparison of these compounds with online databases of anti-diabetic phytocompounds led to the preliminary identification of 10 possible anti-diabetic compounds; α-Pinene, Limonene, Sabinene, Carvone, Myricetin, Rutin, Stigmasterol, Emodin, Sarpagine and Hypoglycin B in crude and solid phase extraction (SPE) fractions of S. frutesecens. Furthermore, using two hepatic cell lines (Chang and HepG2) as an in-vtro model system, the anti-T2DM properties of crude aqueous and organic extracts of S. frutescents was investigated and compared. Both aqueous and organic extracts of S. frutescens were found to decrease gluconeogenesis, increase glucose uptake and decrease lipid accumulation (Triacylglycerol, Diacylglycerol, and Monoacylglycerol) in Chang and HepG2 hepatic cell cultures made insulin resistant (IR) following exposure to high concentration of insulin and fructose. Using real-time quantitative reverse transcriptase polymerase chain reaction (qRT-PCR), the aqueous and organic extracts of S. frutescens were confirmed to regulate the expression of Vesicle-associated membrane protein 3 (VAMP3), Mitogen-activated protein kinase 8 (MAPK8), and Insulin receptor substrate 1 (IRS1) in insulin resistant hepatic cells. IR-mediated downregulation of VAMP3, MAPK8, and IRS1 mRNA in IR HepG2 hepatic cell cultures was reversed in the presence of aqueous and organic extracts of S. frutescens. The hot aqueous extract displayed the highest activity in all the assays, while all the organic extracts displayed similar potency. In conclusion, this study reports that aqueous and organic extracts of S. frutescens possess numerous anti-diabetic compounds that can be further investigated for the development of new, more efficacious and less toxic anti-diabetic agents. The presence of multiple compounds in a single extract does suggest a synergistic or combinatorial therapeutic effect. These findings support the burgeoning body of in-vivo and in-vitro literature evidence on the anti-diabetic properties of S. frutescens and its use in folklore medicine.
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Wang, Jingrong. "Phytochemical and pharmacological studies of the root of ilex pubescens." HKBU Institutional Repository, 2008. http://repository.hkbu.edu.hk/etd_ra/899.
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Sagbo, Idowu Jonas. "Phytochemical analysis and antibacterial properties of aqueous and ethanol extracts of Brachylaena elliptica (Thurb.) dc. and Brachylaena ilicifolia (Lam.) Phill & Schweick." Thesis, University of Fort Hare, 2015. http://hdl.handle.net/10353/d1021289.
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Resistance of human pathogenic bacterial strains results in selective pressure against known antibiotic. However, plant derived compounds that possess antibacterial potential are currently being investigated for treatment of wound infections in diabetic patients as they are inexpensive and non-toxic. Hence, this dissertation was designed to evaluate two medicinal plants (Brachylaena elliptica and Brachylaena ilicifolia) traditionally used in the treatment of various diseases such as diabetes, and its secondary complications in diabetic patients. The in vitro antioxidant activity of both plants were evaluated using DPPH (1, 1-diphenylhydrazl), ferric reducing power, ABTS (2, 2’-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid), NO (nitric oxide) and H2O2 (hydrogen peroxide) techniques. The antibacterial test and Minimum inhibitory concentration (MIC) was determined by agar dilution method against 5 bacteria strains (Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus pyogene, Proteus vulgaris and Proteus mirabilis) infecting wounds in diabetic patients using amoxicillin and ciprofloxacin as positive control. The phytochemical analyses were assessed using standard published methods. Identification of bioactive components in essential oils of both plants were assessed using GCMS. The aqueous and ethanol extracts of both plants were also evaluated to identify bioactive components using LC-MS. The results of the phytochemical analysis revealed the presence of phenols, tannins, flavanoids, flavanols, proanthocyanidins, saponins and alkaloids in both plants. Both plants indicated strong antioxidant activities which might be due to the presence of bioactive compounds. The aqueous and ethanol leaf extracts of both plants demonstrated appreciable broad spectrum activities against these wound pathogens with MIC ranging between 5 and 0.3 mg/ml. The GC-MS analysis of the essential oils of both plants revealed the presence of monoterpenes, oxygenated sesquiterpenes, phenolics and esters. The LC-MS analysis of the aqueous and ethanol leaf extracts of both plants showed that both plants are rich in alkaloids, terpenes, terpenoids, monoterpernoids, and flavanoids. Conclusively, this study has partially justified the ethnomedicinal use of B. elliptica and B.licifolia leaves for the treatment of various diseases, including diabetes and wound infections caused by bacteria in diabetic patients. These may be attributed to the presence of antioxidant compound such as phenols, flavanoids, saponins, tannins, alkaloids and other phytochemical compounds.
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Harris, Taahir. "Bambara groundnut (Vigna subterranean) from Mpumalanga province of South Africa: phytochemical and antimicrobial properties of seeds and product extracts." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2789.
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Thesis MTech (Food Technology))--Cape Peninsula University of Technology, 2017.Bambara groundnut (Vigna subterranea) an indigenous legume cultivated in Sub-Saharan Africa has been proclaimed to have medicinal properties from communities and in rural areas. However, there is not enough scientific information to validate these claims. Therefore, this study aimed to identify possible medicinal properties of Bambara groundnut (BGN), by analysing the phytochemical and antimicrobial properties of BGN seed and product extracts from Mpumalanga province within South Africa. The BGN extracts (70% methanol, 70% ethanol, milli-Q water) from seeds and products (milk and yoghurt) were screened for the presence of alkaloids, flavonoids, phenols, riboflavin and thiamine using analytical laboratory methods for basic screening, high-performance liquid chromatography (HPLC) and gas chromatography (GC) for quantification. The antimicrobial activity involved direct bioautography and minimum inhibitory concentration (MIC) against six antibiotic-resistant microorganisms, Acinetobacter baumannii ATCC 19606T, Enterococcus faecalis ATCC 29212, Klebsiella pneumoniae subsp. pneumoniae ATCC 700603, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus subsp. aureus ATCC 33591 and Candida albicans ATCC 24433. For the seed extracts, flavonoids and phenols were highly concentrated in the red and brown hulls of BGN compared to whole and dehulled BGN. Organic solvents in comparison to water yielded the highest concentration of flavonoids, whilst water yielded the highest concentration for phenols. Flavonoid compounds that were detected at the highest concentrations were rutin (24.458 ± 0.234 mg.g-1, brown hull extracted with 70% methanol), quercetin (0.070 ± 0.043 mg.g-1, red hull extracted with 70% methanol), kaempferol (0.391 ± 0.161 mg.g-1; brown hull extracted with 70% ethanol) and myricetin (1.800 ± 0.771 mg.g-1; red hull extracted with 70% methanol). For phenol compounds, gallic acid (0.009 ± 0.004 mg.g-1; brown hull extracted with milli-Q water), catechin (0.026 ± 0.041 mg.g-1; brown hull extracted with milli-Q water), methyl gallate (0.008 ± 0.013 mg.g-1; brown whole extracted with milli-Q water), chlorogenic acid (0.115 ± 0.199 mg.g-1; brown hull extracted with milli-Q water) and ellagic acid (0.105 ± 0.082 mg.g-1; red hull extracted with milli-Q water) were detected. Vitamins B1 and B2 (riboflavin and thiamine) were mostly present in milli-Q water extracts. Black-eye hull had the highest concentration of thiamine (vitamin B1) and riboflavin (vitamin B2) consisting of 0.072 mg.g-1 (extracted with milli-Q water) and 0.002 mg.g-1 (extracted with 70% ethanol and 70% methanol). Red and brown hull extracts from organic solvents (70% ethanol and 70% methanol) showed the highest antimicrobial activity, whereas the whole, dehulled and hulls (black-eye and brown-eye) extracts had no antimicrobial activity. As for BGN products extracts, flavonoid compounds that were detected at the highest concentrations were rutin (5.694 mg.g-1, whole BGN milk, milli-Q water), quercetin (0.703 mg.g-1, whole BGN yoghurt, milli-Q water) and myricetin (0.987 mg.g-1, whole BGN yoghurt, 70% ethanol).
Books on the topic "Phytochemicals - Therapeutic use"
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Colleen, Carkeet, ed. Phytochemicals: Health promotion and therapeutic potential. Boca Raton: Taylor & Francis/CRC Press, 2013.
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Saxena, Shikha. Phytochemicals and heart diseases: Causation and prevention. New Delhi: Mittal Publications, 2011.
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1929-, Duke James A., ed. CRC handbook of medicinal mints (Aromathematics): Phytochemicals and biological activities. Boca Raton: CRC Press, 1996.
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International, Phytochemical Conference (6th 2006 Buena Park Calif ). Phytochemicals: Aging and health. Boca Raton: Taylor & Francis, 2008.
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1929-, Duke James A., and Beckstrom-Sternberg Stephen M, eds. Handbook of medicinal mints (aromathematics): Phytochemicals and biological activities. Boca Raton, FL: CRC Press, 2001.
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Tokusoglu, Ozlem. Fruit and cereal bioactives: Sources, chemistry, and applications. Boca Raton, [Fla.]: CRC Press, 2011.
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Phytochemicals: A therapeutant for critical disease management. Delhi: Daya Pub. House, 2008.
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Raj, Khanna Dev, and Dhiman Anil Kumar, eds. Phytochemicals: A therapeutant for critical disease management. Delhi: Daya Pub. House, 2008.
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Phytochemicals: A therapeutant for critical disease management. Delhi: Daya Pub. House, 2008.
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Qamar, Wajhul, and Muneeb U. Rehman. "Brief History and Traditional Uses of Honey." In Therapeutic Applications of Honey and its Phytochemicals, 1–10. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6799-5_1.
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Kedhari Sundaram, Madhumitha, Shefina Silas, and Arif Hussain. "Combinational Therapy Using Chemotherapeutic Agents and Dietary Bioactive Compounds." In Treating Endocrine and Metabolic Disorders With Herbal Medicines, 188–214. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4808-0.ch008.
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Diet-derived phytochemicals find prominent use in traditional medicine and have been credited with lowering cancer risk significantly. Dietary agents demonstrate anticancer activity by modulating various molecular targets and cell signaling pathways. Several studies have focused on combinations of dietary bioactive compounds and conventional chemotherapeutic agents to augment their therapeutic response and mitigate the side effects of conventional chemotherapy. The observed synergistic response heralds promise for successful future chemopreventive and chemotherapeutic strategies in cancer management. Animal models and pre-clinical trials of the effective combinations must be undertaken to clearly understand the mechanism of action. This chapter catalogues recent studies that have used dietary bioactive compounds (sulforaphane, EGCG, curcumin, genistein, resveratrol, eugenol) in combination with conventional chemopreventive agents and with other phytochemicals.
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Mendonça da Costa, Ianara, Elaine Cristina Gurgel Andrade Pedrosa, Ana Paula de Carvalho Bezerra, Luciana Cristina Borges Fernandes, José Rodolfo Lopes de Paiva Cavalcanti, Marco Aurélio Moura Freire, Dayane Pessoa de Araújo, et al. "Extracts and Essential Oils from Medicinal Plants and Their Neuroprotective Effect." In Neuroprotection - New Approaches and Prospects. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.90903.
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Current therapies for neurodegenerative diseases offer only limited benefits to their clinical symptoms and do not prevent the degeneration of neuronal cells. Neurological diseases affect millions of people around the world, and the economic impact of treatment is high, given that health care resources are scarce. Thus, many therapeutic strategies to delay or prevent neurodegeneration have been the subject of research for treatment. One strategy for this is the use of herbal and essential oils of different species of medicinal plants because they have several bioactive compounds and phytochemicals with neuroprotective capacity. In addition, they respond positively to neurological disorders, such as dementia, oxidative stress, anxiety, cerebral ischemia, and oxidative toxicity, suggesting their use as complementary treatment agents in the treatment of neurological disorders.
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Ebomoyi, E. William. "Biotechnology and Wealth Creation From Plant With Healing Properties." In Food Science and Nutrition, 113–30. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-5207-9.ch006.
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The relevance of traditional healing in genomic science pertain to the use of specific herbal remedies which are therapeutic for the management of endemic diseases in developing and the least developed nations. Besides the therapeutic resources of the healers were discussed and in nature of their therapeutic modality was characterized. The physical, mental and social psychological model of traditional healing was developed. It was recommended that genomics specifically true sequencing could be applied to identify the phytochemical agents which are present in many of the herbs which traditional healers use. Among those herbs, those that are lethal and toxic to patients should be expunged.
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"The Medicinal Species Euphorbia hirta and E. hyssopifolia (Euphorbiaceae): Uses, Phytochemical Data and Genetic Diversity." In Therapeutic Medicinal Plants, 164–83. CRC Press, 2015. http://dx.doi.org/10.1201/b19773-11.
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Yadav, Durgavati, Vivek Pandey, Shivani Srivastava, and Yamini Bhusan Tripathi. "New Herbal Approaches for the Treatment of Diabetic Kidney Diseases and Its Therapeutic Implications." In Food Science and Nutrition, 321–60. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-5207-9.ch015.
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Diabetic Kidney Diseases (DKD) is a very serious complication of diabetes. There is recent steep rise in the prevalence of metabolic syndrome and DKD worldwide. Factors responsible for intraglomerular hypertension include activation of various vasoactive systems, polyol pathway, oxidative stress, inflammation and protein kinase C. Sodium-Dependent Glucose Co-Transporter (SGLT-2) inhibitors, DPP-IV (Dipeptidyl peptidase-4) inhibitors are being develop to manage the hyperglycemia and oxidative stress induced inflammatory cascade. Herbal drugs have gained increasing popularity; are complex mixtures of polyphenols and phytochemicals from any raw or processed part of a plant, including leaves. Herbal drugs in this modern era are preferred due to its lesser side effects. Various preparations are presently used for ameliorating the effect of DKD. Since, medicinal plants have been reported to affect various metabolic receptors, enzymes and signaling cascade. Above book chapter explains the involvement of different phytochemicals in biological pathway associated with the kidney damage.
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Gautam, Ankita. "Therapeutic Properties of Syzygium cumini (Jamun) and Tinospora cordifolia (Giloy) Against Various Lethal Diseases." In Advanced Pharmacological Uses of Medicinal Plants and Natural Products, 316–37. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2094-9.ch017.
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Phytochemicals have recently been studied in vivo for their unmatched interactions in curing lethal diseases that can't be cured by allopathic medical intervention without any adverse effect on the patient health. These methods were being used in ancient India, where Jamun and Giloy have been used to decrease hormonal imbalance and pathological disorders. Signaling pathways of the active components of Tinospora cordifolia thus enable effective disease targeting. With so much to offer to the scientific world of medicine, the plant Tinospora truly acts as an incredible source as it deals with seasonal fever like Dengue, Malaria, Chickengunia, and anticancer and anti-HIV (research undergoing). Whereas the Syzygium cumini (Jamun) fruit and seed hold worth in treating various diet-related malfunctions, especially hyperglycemia. In the current research, Jamun seed and fruit extracts have been proved effective in the regulation of blood glucose and insulin parameters.
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O. Cherif, Aicha. "Oilseeds as Functional Foods: Content and Composition of Many Phytochemicals and Therapeutic Alternatives." In Functional Foods [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97794.
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Oilseeds composition has been studied extensively, but recently it has been thoroughly investigated considering especially the phytochemicals representing the minor components. This interest is connected with the activity of such compounds against cardiovascular diseases, lipid oxidation, protein cross-linking and DNA mutations and hemostasis function, which prevent the attack of biomolecules by free radicals. This chapter book could aim to give an overview of the different uses of several oilseeds as bioactive foods, focusing on their active constituents (phytosterols, polyphenols, tocopherols, tocotrienols, and carotenoids) and their content in oilseeds. We will also focus on the beneficial aspects of theses nutraceuticals in human health.
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Akter, Salima, Mohammad Nazmul Hasan, Begum Rokeya, Hajara Akhter, Mohammad Shamim Gazi, Farah Sabrin, and Sung Soo Kim. "Alternative Medicine: A Recent Overview." In Alternative Medicine [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97039.
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Alternative medicine has renewed its growing public interest in recent times due to inequality of patients and healthcare professionals’ ratios with increased workload for the latter, various side effects of modern medicine, lack of complete remission from chronic diseases, high cost of new drugs, and emerging new diseases. Hence, people have become more dependent on treatment systems replying on alternative medicine or herbal medicine from traditional medicinal practitioners. Alternative medicine has grown substantially over time and encompasses several millennia of therapeutic systems. The significant areas of alternative medicine include mind–body therapies, body manipulation, and the therapies based on biological systems. Natural products based biological treatment is the most popular of them as nature has endowed us with abundance of effective pharmacologically active phytochemicals. These phytochemicals possess numerous specific clinical health benefits including antioxidant, antidiabetic, anti-inflammatory, anticancer, anti-infectious and analgesic effects. In addition, alternative medicine is easily accessible, affordable, most often noninvasive, and provides favorable benefits during terminal periods of some diseases. However, due to the lack of well-designed clinical trials, the safety and effectiveness of many alternative medicines/therapies remains elusive. This chapter will critically discuss major areas, uses, safety and regulation, current challenges & future perspectives of alternative medicine.
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Trapali, Maria, and Vasiliki Lagouri. "Vasculoprotective and Neuroprotective Effects of Various Parts of Pomegranate: In Vitro, In Vivo, and Preclinical Studies." In Pomegranate [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96680.
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Pomegranate (Punica granatum L.) is one of the oldest edible fruits in the Mediterranean area and has been used extensively in the folk medicine. Popularity of pomegranate has increased especially in the last decade because of the health effects of the fruit. Polyphenols, represent the predominant class of phytochemicals of pomegranate, mainly consisting of hydrolysable tannins and ellagic acid. Pomegranate is a rich source of the ellagitannin punicalagin, which has aroused considerable interest in pomegranate fruit as a new therapeutic agent in recent years. Most studies on the effects of pomegranate juice have focused on its ability to cure diabetes and atherosclerosis. The present review summarizes some recent studies on the vasculoprotective and neuroprotective effect of various parts of pomegranate and its main compounds especially hydrolysable tannins ellagitannins, ellagic acid and their metabolites. The in vitro and in vivo studies, showed that the whole parts of pomegranate as well as its main components had a positive influence on blood glucose, lipid levels, oxidation stress and neuro/inflammatory biomarkers. They could be used as a future therapeutic agent towards several vascular and neurodegenerative disorders such as hypertension, coronary heart disease and Alzheimer.