Relevant bibliographies by topics / Ascaridole

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Academic literature on the topic 'Ascaridole'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 June 2025

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Journal articles on the topic "Ascaridole"

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Chen, Jianhan, Rohen Prinsloo та Xiongwei Ni. "A Kinetic Study of a Photo-Oxidation Reaction between α-Terpinene and Singlet Oxygen in a Novel Oscillatory Baffled Photo Reactor". Technologies 12, № 3 (2024): 29. http://dx.doi.org/10.3390/technologies12030029.

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By planting LEDs on the surfaces of orifice baffles, a novel batch oscillatory baffled photoreactor (OBPR) together with polymer-supported Rose Bengal (Ps-RB) beads are here used to investigate the reaction kinetics of a photo-oxidation reaction between α-terpinene and singlet oxygen (1O2). In the mode of NMR data analysis that is widely used for this reaction, α-terpinene and ascaridole are treated as a reaction pair, assuming kinetically singlet oxygen is in excess or constant. We have, for the first time, here examined the validity of the method, discovered that increasing α-terpinene initially leads to an increase in ascaridole, indicating that the supply of singlet oxygen is in excess. Applying a kinetic analysis, a pseudo-first-order reaction kinetics is confirmed, supporting this assumption. We have subsequently initiated a methodology of estimating the 1O2 concentrations based on the proportionality of ascaridole concentrations with respect to its maximum under these conditions. With the help of the estimated singlet oxygen data, the efficiency of 1O2 utilization and the photo efficiency of converting molecular oxygen to 1O2 are further proposed and evaluated. We have also identified conditions under which a further increase in α-terpinene has caused decreases in ascaridole, implying kinetically that 1O2 has now become a limiting reagent, and the method of treating α-terpinene and ascaridole as a reaction pair in the data analysis would no longer be valid under those conditions.
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Bai, Chuan Qi, Zhi Long Liu, and Qi Zhi Liu. "Nematicidal Constituents from the Essential Oil ofChenopodium AmbrosioidesAerial Parts." E-Journal of Chemistry 8, s1 (2011): S143—S148. http://dx.doi.org/10.1155/2011/470862.

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Essential oil of Chinese medicinal herb,Chenopodium ambrosioidesaerial parts was found to possess nematicidal activity against the root-knot nematodes,Meloidogyne incognita. The essential oil ofC. ambrosioideswas obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 27 components of the essential oil were identified. The principal compounds inC. ambrosioidesessential oil were (Z)-ascaridole (27.27%),ρ-cymene (19.05%), isoascaridole (14.75%),α-pinene (6.33%) andα-terpinene (5.12%). Bioactivity-guided chromatographic separation of the essential oil on repeated silica gel columns led to isolate three volatile components ((Z)-ascaridole,ρ-cymene and isoascaridole) from the essential oil. The essential oil and (Z)-ascaridole exhibited strong nematicidal activity againstM. incognitawith LC50values of 49.55 μg/mL and 32.79 μg/mL, respectively.ρ-Cymene and isoascaridole also possessed nematicidal activity againstM. incognitawith LC50values of 435.89 μg/mL and 1323.51 μg/mL, respectively but weaker than the crude essential oil.
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Ávila-Blanco, Manuel Enrique, Martín Gerardo Rodríguez, José Luis Moreno Duque, Martin Muñoz-Ortega, and Javier Ventura-Juárez. "Amoebicidal Activity of Essential Oil ofDysphania ambrosioides(L.) Mosyakin & Clemants in an Amoebic Liver Abscess Hamster Model." Evidence-Based Complementary and Alternative Medicine 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/930208.

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Amebiasis is a parasitic disease that extends worldwide and is a public health problem in developing countries. Metronidazole is the drug recommended in the treatment of amebiasis, but its contralateral effects and lack of continuity of treatment induce low efficiency, coupled with the appearance of resistant amoebic strains. Therefore, the search of new compounds with amoebicidal activity is urgent and important. In this study, we evaluated the in vitro and in vivo antiamoebic activity of the essential oilDysphania ambrosioides(L.) Mosyakin & Clemants. It exhibited an IC50= 0.7 mg/mL against trophozoites. The oral administration of essential oil (8 mg/kg and 80 mg/kg) to hamster infected withEntamoeba histolyticareverted the infection. Ascaridole was identified as the main component of essential oil ofD. ambrosioides. The identification of amoebicidal activity of Ascaridole gives support to the traditional use. Further studies with Ascaridole will be carried out to understand the mechanism involved.
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Owolabi, Moses S., Labunmi Lajide, Matthew O. Oladimeji, et al. "Volatile Constituents and Antibacterial Screening of the Essential Oil of Chenopodium Ambrosioides L. Growing in Nigeria." Natural Product Communications 4, no. 7 (2009): 1934578X0900400. http://dx.doi.org/10.1177/1934578x0900400724.

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The essential oil of the aerial parts of Chenopodium ambrosioides L. has been isolated by hydrodistillation and analyzed using GCMS. The major components were found to be α-terpinene (63.1%), p-cymene (26.4%) and ascaridole (3.9%). The oil displayed no antibacterial activity against either Gram-positive bacteria Bacillus cereus or Staphylococcus aureus, or the Gram-negative bacterium Escherichia coli (MIC = 1250 μg/mL). A cluster analysis of C. ambrosioides essential oils reveals at least seven distinct chemotypes: ascaridole, α-terpinene, α-pinene, p-cymene, carvacrol, α-terpinyl acetate, and limonene.
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Pichler, Gerald. "Detection of ascaridole activation in Leishmania." Intrinsic Activity 4, Suppl. 3 (2016): A2.1. http://dx.doi.org/10.25006/ia.4.s3-a2.1.

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Geroldinger, Gerald, Matthias Tonner, Hubert Hettegger, et al. "Mechanism of ascaridole activation in Leishmania." Biochemical Pharmacology 132 (May 2017): 48–62. http://dx.doi.org/10.1016/j.bcp.2017.02.023.

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Hsu, Kuang-Ping, Mei-Ling Yang, Liang Yu Wei, Hui-Tung Ho, and Chen-Lung Ho. "Chemical Composition and In Vitro Anti-Wood-Decay Fungal Activities of Dysphania ambrosioides Leaf Essential Oil From Taiwan." Natural Product Communications 17, no. 5 (2022): 1934578X2210999. http://dx.doi.org/10.1177/1934578x221099971.

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We evaluated the leaf essential oil in whole or fractions of Dysphania ambrosioides with respect to their resistance to wood decay fungal activities in vitro of 4 fungi. The main ingredients with the greater anti-wood decay capability were also identified. Fresh leaves of D. ambrosioides were hydrodistillated in a Clevenger-type apparatus and the resulting oil characterized using GC-FID and GC-MS instruments. The essential oil was found to consist of α-terpinene (30.5%), p-cymene (17.3%), carvacrol (16.2%), and ascaridole (15.1%). The oil showed resistance to wood decay activity of Trametes versicolor, Phanerochaete chrysosporium, Phaeolus schweinitzii, and Lenzites sulphureu. The oil had excellent resistance to wood decay fungal activities, and the active compounds were shown to be carvacrol and ascaridole.
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Dembitsky, Valery, Ilya Shkrob, and Lumir Ondrej Hanus. "ASCARIDOLE AND RELATED PEROXIDES FROM THE GENUS CHENOPODIUM." Biomedical Papers 152, no. 2 (2008): 209–15. http://dx.doi.org/10.5507/bp.2008.032.

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Christoffers, Wietske Andrea, Brunhilde Blömeke, Pieter-Jan Coenraads, and Marie-Louise Anna Schuttelaar. "Co-sensitization to ascaridole and tea tree oil." Contact Dermatitis 69, no. 3 (2013): 187–89. http://dx.doi.org/10.1111/cod.12086.

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Gille, Lars, Gerald Geroldinger, Matthias Tonner, et al. "The activation of the endoperoxide ascaridole in Leishmania." Free Radical Biology and Medicine 108 (July 2017): S32. http://dx.doi.org/10.1016/j.freeradbiomed.2017.04.130.

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Dissertations / Theses on the topic "Ascaridole"

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CAVALLI, Jean-François. "Caractérisation par CPG/IK, CPG/SM et RMN du carbone-13 d'huiles essentielles de Madagascar." Phd thesis, Université Pascal Paoli, 2002. http://tel.archives-ouvertes.fr/tel-00007939.

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Cette étude a pour objectif d'une part, de développer une méthode d'analyse des huiles essentielles basée sur la combinaison du couplage CPG/SM et de la RMN du carbone-13, avec ou sans fractionnement, en utilisant les données de la littérature, en reconstruisant les spectres de molécules absentes de nos bibliothèques et d'autre part, de contribuer à une meilleure connaissance de l'huile essentielle de diverses plantes de Madagascar, endémiques ou introduites, en les caractérisant et en décrivant une éventuelle variabilité chimique. Ces analyses nous ont permis d'identifier efficacement des composés délicats à analyser par les techniques conventionnelles (stéréoisomères, molécules thermosensibles). Nous avons également étudié six échantillons de Cedrelopsis grevei et réalisé un fractionnement poussé de l'un d'entre eux, ce qui nous a permis d'identifier de très nombreux sesquiterpènes. Enfin, nous avons montré la variabilité interspécifique des huiles essentielles du genre Helichrysum.
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LEE, KIEN ON LAW DUNE ALIETTE. "L'ascaridiose intra biliaire : a propos de deux observations." Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX20469.

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Jones, Angela M. "Aspects of the biology of some marine ascaridoid nematodes." Thesis, University of Stirling, 1994. http://hdl.handle.net/1893/1498.

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Larval Anisakis simplex, Pseudoterranova decipiens, Contracaecum osculatum and larvae and adults of Hysterothylacium aduncum were recovered from specimens of cod, haddock, blue whiting and bull rout; however, only A.simplex were retrieved from long rough dab. The epidemiology of infection by these four nematode species was examined both in whole fish, and in individual host tissues and organs. Frequency distributions of nematodes were found to be generally overdispersed in fish. Preliminary investigations revealed no strong evidence to suggest that competi tive interactions occurred between ascaridoid nematodes wi thin fish. Stomach lesions in gadoids were associated with single (partially penetrated) and mul tiple (throughout stomach wall) worm infections of larval A.simplex; such lesions were discrete and raised in appearance. Lesions associated with 1-3 larval P.decipiens in an open cavity within the stomach of angler fish were diffuse and not significantly raised. Histological examination of each form of ulcer revealed general similarities in pathology, with infil tration of inflamatory cells being the initial response to the nematode\s. Changes in the cephalic morphology of A.simplex, P.decip1ens, C.osculatum and H.aduncu were examined at different life cycle stages under scanning electron microscopy. Due to their small size, newly hatched third stage larvae of P .decip1ens were cultured in a bacterial mat prior to fixation for S.E.M., and the external ultrastructure of these larvae is described. The most prominent external feature at this stage is the cephalic boring tooth. Aspects of the internal ultrastructure of A. simplex, P.decipiens, C.osculatum and H.aduncu were examined using transmission electron microscopy. Newly hatched third stage larvae of P.decipiens show little differentiation of internal organs. The ultrastructure of sensory amphids in H.aduncum and A. simplex is cons i stent wi th that of a chemoreceptor, that of the single papilla in P.decipiens a mechanoreceptor. The ultrastructure of the digestive tract, excretory gland and body wall of marine ascaridoids were also examined.
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Jost, Francis. "L'ascaridiose des voies biliaires et ses complications : a propos d'un cas chez une patiente porteuse d'une anastomose choledochoduodenale." Université Louis Pasteur (Strasbourg) (1971-2008), 1989. http://www.theses.fr/1989STR1M228.

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Primeau, Lynn. "Part A: Investigation of a newly identified plant Hernandia didymantha Donn, synthesis of phenethyl cinnamide Part B: Selective removal of ascaridol from the essential oil of Chenopodium ambrosioides var ambrosioides Part C: Synthesis of canophyllol analogues." Thesis, University of Ottawa (Canada), 2007. http://hdl.handle.net/10393/28245.

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Part A. A number of constituents isolated from the ethanol extracts of the leaves of the neotropical species Hernandia Didymantha Donn. These include series of ethyl esters of common C14, C16, and C18 saturated and unsaturated fatty acides. The presence of the ethyl ester of the CI7 fatty acid was indicated by GC-MS. The major non polar component was shown to be nerolidol, 4, an open chain sesquiterpene. Ethnobotanical reports indicate that this sesquiterpene can be used as a natural pesticide and as a transdermal carrier. It is also reported to have anti-malarial activity. The major more polar component was shown to be the tryptamine derivative phenethyl cinnamide, 1. The structure identification was based on comparison of literature data and a two step synthesis (80%) from cinnamic acid and tryptamine. Part B. Chenopodium ambrosioides has been known for centuries as an antifungal and vermifuge remedie. As an infusion, Chenopodium ambrosioides is safe and an effective treatment. The essential oil has been investigated as an organic insecticide by Codena Inc, (St Charles sur Richelieu, Quebec). Registration was initially rejected by the U.S. Environmental Protection Agency because of the known toxicity of one of the components, the monoterpene endoperoxide ascaridol, compound 26. The selective removal of ascaridol was achieved without affecting the other constituents present in the essential oil using either the reaction with zinc in acetic acid or Lindlar Catalyst poisoned with quinoline and hydrogen at room temperature under several atmospheres of pressure. In each case the reduction product is the diol 27. The treated oil still showed excellent insecticidal properties and was approved for use as an organic pesticide by the U.S. Environmental Protection Agency. Considerable efforts were made to optimize the zinc/acetic acid. Unfortunately the optimized procedure still required considerable excess amounts of both reagents. This procedure, although successful from a chemistry and safety point of view, was not economically viable. The second method using the poisoned Lindlar Catalyst and H2 a gave clean reduction of ascaridol without causing reduction of any of the many olefinic components present in the oil. We showed that the catalyst could be recycled at least five times without significant loss of activity. Finally to give a reduced essential oil free of any quinoline, we prepared catalyst in hexane and removed the excess quinoline by washing several times with hexanes. Metallic contaminants in the oil such as lead and palladium which are components of the Lindlar catalyst were effectively removed by stirring the final product with 1% silica gel followed by filtration. This method appears to be inexpensive and thus suitable for commercial production of the safe "Codena Oil". Part C. Literature reports have shown that ursolic acid, a triterpene acid has a positive effect on the elimination of biofilms without any damage to the bacteria function. Since ursolic acid and canophyllol are both pentacyclic triterpenes a series of analogues of canophyllol have been synthesized and characterized by 1H NMR, 13C NMR, MS and their melting points. These compounds in which we made relatively simple changes in the functionality at C-3 and C-28 of the canophyllol molecule, together with a variety of similar betulinic acid compounds are now available for testing as potential controls of biofilm formation. These test will be carried out by the research group of Dr. R. Sattar of the University of Ottawa, Faculty of Medicine. Canophyllol was obtained as the major triterpene component in the bark of Ruptilliocarpon caracolito collected in the Osa Penninsula, Costa Rica.
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Galula, Jedhan Ucat, and 高裕翔. "Molecular Identification of Ascaridoid Nematodes Causing Larva Migrans." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/51031899600645177889.

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碩士<br>國立中興大學<br>獸醫學系暨研究所<br>96<br>Loop-mediated isothermal amplification (LAMP) is a novel technique which rapidly amplifies target DNA with high specificity and efficiency under isothermal conditions. In the present study, we developed a LAMP method for the detection and identification of the larva migrans causing ascaridoid nematodes, Toxocara canis, T. cati and Baylisascaris procyonis, using primer sets designed from species-specific genetic markers in the second internal transcribed spacer (ITS-2) of the nuclear ribosomal DNA (rDNA) of the nematode species. LAMP reactions were carried out isothermally at 65°C for 60 min in a simple incubator. Positive amplification products analyzed in agarose gel electrophoresis were also detected by the addition of SYBR Green I. The LAMP assay for each nematode species was specific and produced negative results when tested against non-target DNA. DNA amplifications were detected as early as 30 min. The LAMP primer sets for T. canis, T. cati and B. procyonis were capable of detecting down to 10 fg, 100 pg and 1 fg of genomic DNA, respectively. Conventional PCR on the other hand, had a comparatively lower sensitivity in detecting T. canis and B. procyonis DNA down to 10 ng and1 pg, respectively, except for T. cati which is 10-fold more sensitive compared to the LAMP assay. These results showed that the molecular diagnostic technique developed in this study would be potentially valuable in the rapid yet simple approach of differentiating and identifying ascaridoid larvae in tissues of humans and animals when morphological methods are difficult or inadequate to attain diagnosis. This would also be useful in the detection of ascaridoid eggs in soil and in feces of dogs and cats in the environment which could serve as source of infection for humans.
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Tietze, Corinna [Verfasser]. "The impact of ascaridol on human monocyte-derived dendritic cells and the monocytic leukemia cell line THP-1 / Corinna Tietze." 2008. http://d-nb.info/98983400X/34.

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Books on the topic "Ascaridole"

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Fagerholm, Hans-Peter. Systematic position and delimitation of ascaridoid nematode parasites of the genus contracaecum with a note on the superfamily ascaridoidea. Åbo Akademis förlag, 1990.

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Anatomie des Vers Intestinaux Ascaride Lombricoïde et Échinorhynque Géant, ... Creative Media Partners, LLC, 2023.

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Book chapters on the topic "Ascaridole"

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Gooch, Jan W. "Ascaridole." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_822.

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Fagerholm, Hans-Peter, and Robin M. Overstreet. "Ascaridoid Nematodes: Contracaecum, Porrocaecum, and Baylisascaris." In Parasitic Diseases of Wild Birds. Wiley-Blackwell, 2009. http://dx.doi.org/10.1002/9780813804620.ch24.

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"Ascaridole." In Encyclopedic Dictionary of Polymers. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-30160-0_807.

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"ascaridol, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/2679043089.

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Anofel, Françoise Botterel, M. L. Dardé, et al. "Nématodoses digestives : ascaridiose, ankylostomoses, anguillulose, oxyurose, trichocéphalose." In Parasitologie et Mycologie Médicales - Guide des Analyses et des Pratiques Diagnostiques. Elsevier, 2017. http://dx.doi.org/10.1016/b978-2-294-75363-3.00033-1.

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ANOFEL, Sandrine Houzé, and Laurence Delhaes. "Nématodoses digestives : ascaridiose, ankylostomoses, anguillulose, oxyurose, trichocéphalose." In Parasitologie et Mycologie Médicales. Elsevier, 2022. http://dx.doi.org/10.1016/b978-2-294-77766-0.00034-0.

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"Item 100 – Parasitoses digestives lambliase, téniasis, ascaridiose, oxyurose, amibiase." In Hépato-gastro-entérologie. Elsevier, 2012. https://doi.org/10.1016/b978-2-294-71149-7.00005-5.

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Mai, Joseph. "Living with friends." In Robert Guédiguian. Manchester University Press, 2017. http://dx.doi.org/10.7228/manchester/9780719096471.003.0001.

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This chapter examines Guédiguian’s youth in l’Estaque, a “communist” neighbourhood of Marseille, his political activism, his transition away from the Communist party, and finally a turn toward friendship as a figure for human interaction. The chapter examines the history of l’Estaque. It tells of Guédiguian’s friendship with Gérard Meylan, his meeting Ariane Ascaride, and then his disillusion with the Communist party, corresponding with his entry into filmmaking, but filmmaking that is not so much an industry or an art form as a way of “remaining with friends” through shared activity and cooperation. The chapter turns to the philosophy of friendship since Aristotle to ground this move in what Aristotle calls “eudaimonia” or the flourishing life. From there it discusses the political implications of a human relationship built on philia in a cultural period, our own, in which different figures of human interaction, the figures of the consumer and the entrepreneur are dominant. It concludes with a discussion of how Guédiguian’s cinema offers a way forward to those who have felt politically alienated during a period of economic “neoliberalism.”
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