Academic literature on the topic 'Uric Acid Stones'

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Journal articles on the topic "Uric Acid Stones"

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Stansbridge, Elizabeth M., Damian G. Griffin, and Valerie Walker. "Who makes uric acid stones and why—observations from a renal stones clinic." Journal of Clinical Pathology 66, no. 5 (2013): 426–31. http://dx.doi.org/10.1136/jclinpath-2012-201373.

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AimsExcessively acidic urine is the dominant factor in uric acid stone formation. Recent evidence implicating insulin resistance has revived interest in its causation. We reviewed data on uric acid stone formers attending a general stones clinic to find out whether this supports and adds to current concepts.MethodsA retrospective database study of 1504 stone formers investigated at the Southampton renal stones clinic from 1990 to March 2007. Uric acid stone formers and idiopathic calcium stone formers were compared using non-parametric tests.ResultsFifty-nine patients (3.9%; 43 men) had uric a
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Ma, Qi, Li Fang, Rui Su, Liang Ma, Guohai Xie, and Yue Cheng. "Uric acid stones, clinical manifestations and therapeutic considerations." Postgraduate Medical Journal 94, no. 1114 (2018): 458–62. http://dx.doi.org/10.1136/postgradmedj-2017-135332.

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Uric acid stones account for 10%–15% of all urinary stones. Changes in dietary habits, environment or both can result in the increase of uric acid stones. The formation of uric acid stones is related to hyperuricosuria, low urinary volume and persistently low urinary pH. Diabetes and obesity also significantly increase the risk of stone formation. Dual-energy CT provides a convenient and reliable method for diagnosis. Stone composition analysis and 24-hour urine metabolic evaluations should be considered for further evaluation. Most small uric acid stones (diameter <2 cm) can be treated by
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Cicerello, Elisa. "Uric acid nephrolithiasis: An update." Urologia Journal 85, no. 3 (2018): 93–98. http://dx.doi.org/10.1177/0391560318766823.

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Uric acid nephrolithiasis appears to increase in prevalence. While a relationship between uric acid stones and low urinary pH has been for long known, additional association with various metabolic conditions and pathophysiological basis has recently been elucidated. Some conditions such as diabetes and metabolic syndrome disease, excessive dietary intake, and increased endogenous uric acid production and/or defect in ammoniagenesis are associated with low urinary pH. In addition, the phenomenon of global warming could result in an increase in areas with greater climate risk for uric acid stone
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Pricop, Cătălin, Marius Ivănuță, Mihaela Nikolic, and Dragoş Puia. "Kidney Stones of Type I vs. Type II Diabetic Patients: Are There Any Differences?" Journal of Clinical Medicine 13, no. 20 (2024): 6110. http://dx.doi.org/10.3390/jcm13206110.

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Background: This study highlighted the differences between the biochemical compositions of urinary stones from patients with type 1 diabetes versus those with type 2 diabetes. Materials and Methods: This study included patients diagnosed with kidney stones and diabetes who were referred to the Urological Clinic of the Dr. C. I. Parhon Hospital in Iasi from April 2017 to April 2024. We analyzed the spectroscopic stone composition from 128 lithiasis patients treated in our Clinic. In the current study, the distribution of the biochemical composition of stones varied significantly between diabeti
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Sholan, Rashad, Rufat Aliyev, Ulduz Hashimova, Seymur Karimov, and Elvin Bayramov. "Urinary Stone Composition Analysis of 1465 Patients: The First Series from Azerbaijan." Archives of Iranian Medicine 27, no. 11 (2024): 618–23. http://dx.doi.org/10.34172/aim.32026.

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Background: Urinary stone disease is a prevalent health issue worldwide, with varying incidence influenced by multiple factors. This study aims to provide the first comprehensive analysis of urinary stone composition in Azerbaijan. Methods: A retrospective study was conducted on 1465 patients, aged 1‒83 years, who underwent biochemical urinary stone analysis at the Department of Renal Diseases and Organ Transplantation, Azerbaijan State Security Service Military Hospital, between April 2015 and December 2023. Stone samples were analyzed using Fourier transform infrared (FTIR) spectroscopy. Sta
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Fernandez, Alfonso, Andrew Fuller, Reem Al-Bareeq, Linda Nott, and Hassan Razvi. "A comparison of the metabolic profiles of diabetic and non-diabetic uric acid stone formers." Canadian Urological Association Journal 7, no. 3-4 (2013): e190-2. http://dx.doi.org/10.5489/cuaj.820.

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Introduction: The aim of this study was to compare the metabolic profiles of diabetic and non-diabetic patients with uric acid stones to understand whether preventive strategies should be tailored to reflect different causative factors.Methods: The results of the metabolic evaluation of patients with uric acid stones identified prospectively from the Metabolic Stone Clinic at St. Joseph’s Hospital, London, Canada were reviewed. Information included patients’ clinical histories, 24 hour urine collections, blood chemistry and stone analysis.Results: Complete data were obtained from 68 patients w
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Kim, Jong, Kang Cho, Do Kim, Doo Chung, Hae Jung, and Joo Lee. "Predictors of Uric Acid Stones: Mean Stone Density, Stone Heterogeneity Index, and Variation Coefficient of Stone Density by Single-Energy Non-Contrast Computed Tomography and Urinary pH." Journal of Clinical Medicine 8, no. 2 (2019): 243. http://dx.doi.org/10.3390/jcm8020243.

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We analyzed the capacities of pertinent parameters (determined by single-energy non-contrast computed tomography [NCCT]) and urinary pH to predict uric acid stones. We reviewed the medical records of 501 patients whose stones were removed surgically or passed spontaneously between December 2014 and April 2016. Qualifying participants (n = 420) were stratified by the nature of the stone (calcium oxalate, uric acid, or infectious). Based on NCCT, we determined maximal stone length (MSL), mean stone density (MSD), and stone heterogeneity index (SHI) using Hounsfield units (HU) and calculated the
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Safranow, Krzysztof, and Zygmunt Machoy. "Methylated Purines in Urinary Stones." Clinical Chemistry 51, no. 8 (2005): 1493–98. http://dx.doi.org/10.1373/clinchem.2005.048033.

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Abstract Background: The aim of the study was to measure the content of methylated purines that appear as admixtures in uric acid stones. Methods: We analyzed urinary calculi from 48 residents of Western Pomerania who underwent surgery at the urology ward in Szczecin. Stone samples were dissolved in 0.1 mol/L NaOH. Extracts were diluted in 50 mmol/L KH2PO4 and analyzed by reversed-phase HPLC with ultraviolet detection and use of a gradient of methanol concentration and pH. Results: Uric acid was the main component of 9 stones. All 9 showed admixtures of 9 other purine derivatives: endogenous p
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Golovanov, S. A., M. Yu Prosyannikov, A. V. Sivkov, N. V. Anokhin, D. A. Voytko, and V. V. Drozhzheva. "Metabolic risk factors and urinary stones formation. IX: Lithogenic features of monomineral and mixed stones in men and women." Experimental and Сlinical Urology 17, no. 2 (2024): 68–80. http://dx.doi.org/10.29188/2222-8543-2024-17-2-68-80.

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Introduction. The study of lithogenic substances excretion in stone formers with pure monomineral stones allows us to identify characteristic metabolic changes, the long-term effect of which determines the originality of the pathogenetic mechanism features of the formation of urinary stones consisting of pure minerals. The problem of studying lithogenesis of «pure» (monomineral) stones in stone formers is of great clinical importance, since it assumes the existence of various approaches to prevention and metaphylaxis of urolithiasis in patients with «pure» stones and mixed stones. Materials an
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Becker, Gavin. "Uric acid stones." Nephrology 12, s1 (2007): S21—S25. http://dx.doi.org/10.1111/j.1440-1797.2007.00774.x.

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Dissertations / Theses on the topic "Uric Acid Stones"

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Chang, Yi-Ru, and 張宜儒. "Strategy of application of dual energy computed tomography to identify of uric acid stones and dose reduction." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/25167842340893742006.

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碩士<br>中山醫學大學<br>生物醫學科學學系碩士班<br>103<br>Purpose The purpose of this study is using dual-energy computed tomography (DECT) to evaluate different analysis methods of identification for uric acid stones. By adjustment of the reference tube current time product (Ref. mAs), the effective dose reduction of patient and the identified accuracy of methods were assessed. Material & Method A total of 132 urinary stones were collected in the study. Stones are placed in the CTDI acrylic phantoms with 16 and 32 cm diameter and in the 25 and 38 cm elliptic-like polyethylene phantoms to simulate stones in the h
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Books on the topic "Uric Acid Stones"

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Daudon, Michel, and Paul Jungers. Uric acid stones. Edited by Mark E. De Broe. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199592548.003.0202_update_001.

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Uric acid (UA) stones are typically red-orange and often appear as sand/ gravel though they may be large. They are totally radiolucent. They account for about 10% of all kidney stones in most countries, and up to 20% in some populations. It is twice as frequent in males, prevalence increases with age, and it is two to three times higher in patients with type 2 diabetes or with features of the metabolic syndrome. Factors that induce the formation of UA stones are a low urine volume, hyperuricosuria, and, more importantly, a permanently low urine pH (&lt; 5). Indeed, below its pKa of 5.35 at 37°
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MENARD, Cédric. Culinary Dictionary for Uric Acid Kidney Stones: Food Encyclopedia. Independently Published, 2020.

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Reynard, John, and Ben Turney. Kidney stones. Edited by John Reynard. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199659579.003.0019.

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This chapter summarizes the variety of ways in which kidney stones can present, clinical findings in patients with renal stones, and the diagnostic tests used to identify them. Plain radiography remains a good way of identifying renal stones if calcified, will identify cysteine stones which are relatively radiolucent, but cannot ‘see’ non-calcium-containing stones (e.g. uric acid, triamterene, indinavir). The sensitivity of ultrasound for detecting renal calculi is variably reported at between 50–95%. Unenhanced computed tomography (CT) is nowadays regarded as the diagnostic gold standard for
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Chopra, Bhavna, and Stanley Goldfarb. Approach to the patient with kidney stones. Edited by Mark E. De Broe. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199592548.003.0200.

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A detailed history can identify some risk factors and narrows down the potential causes of kidney stone formation. Radiological investigations confirm the diagnosis and give information on likely stone type. Urine and serum biochemistry is invaluable, but a more comprehensive investigation is reserved for recurrent stone formers. In that case at least two 24h collections, remote from any acute event are recommended, measuring volume, pH, calcium, oxalate, citrate, uric acid and phosphate. Urinary crystals can shed light on some stone types.For single or recurrent stones, analysis of stones the
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Turney, Ben, and John Reynard. Medical therapy (dissolution therapy). Edited by John Reynard. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199659579.003.0024.

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Medical therapy of stone disease aims to prevent stones or dissolve existing stones. Dissolution therapy aims to dissolve stones through administration of oral agents to by direct chemolysis through renal irrigation. Since dissolution therapy may take weeks to achieve an effect, it is usually used as an adjunct to endourological treatment. Urate stones are most amenable to dissolution therapy. Stones containing any calcium have a lower chance of successful dissolution. Providing stone composition is known, irrigating chemolysis is an option for patients with large stone burdens who are unsuita
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Zboncak, Allison. ALLOPURINOL: Most Potent Medication for the Treatment of Gout or Kidney Stones, and to Decrease Levels of Uric Acid in People Who Are Receiving Cancer Treatment. Independently Published, 2019.

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Erickson, Stephen B., Hatem Amer, and Timothy S. Larson. Urolithiasis, Kidney Transplantation, and Pregnancy and Kidney Disease. Oxford University Press, 2012. http://dx.doi.org/10.1093/med/9780199755691.003.0475.

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It was previously assumed that all kidney stones crystallized as urine passed through the renal tubules and were retained by means of crystal-tubular cell interactions. Recently uroscopy with papillary biopsies has shown 2 different pathways for stone formation, both mediated by calcium phosphate crystals. Kidney transplant has become the preferred treatment for patients with end-stage renal disease. Those benefiting from transplant included patients who would be deemed "high risk," such as those with diabetes mellitus and those older than 70 years. Anatomical changes associated with pregnancy
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Reinger, Burley. ΑllΟΡ⋃rΙΝΟl: Power Medicine for the Treatment of Gout or Kidney Stones, and to Decrease Levels of Uric Acid in People Who Are Receiving Cancer Treatment. Independently Published, 2019.

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Taylor, Eric N., and Gary C. Curhan. Epidemiology of nephrolithiasis. Edited by Mark E. De Broe. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199592548.003.0199.

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Nephrolithiasis is common, costly, and painful. The prevalence of nephrolithiasis, defined as a history of stone disease, varies by age, sex, race, and geography while the incidence of nephrolithiasis, defined as the first stone event, varies by age, sex, and race. Epidemiologic studies have quantified the burden of kidney stone disease and expand our understanding of risk factors. A variety of dietary, non-dietary, and urinary risk factors contribute to the risk of stone formation and the importance of these varies by age, sex, and body mass index.Low fluid intake, high urinary oxalate or cal
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Book chapters on the topic "Uric Acid Stones"

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Maalouf, Naim M. "Uric Acid Stones." In Urinary Stones. John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118405390.ch3.

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Rappold, Gudrun, John-John B. Schnog, Victor E. A. Gerdes, et al. "Uric Acid Stones." In Encyclopedia of Molecular Mechanisms of Disease. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_7107.

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Sakhaee, Khashayar. "Uric Acid Metabolism and Uric Acid Stones." In Urinary Tract Stone Disease. Springer London, 2010. http://dx.doi.org/10.1007/978-1-84800-362-0_15.

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Erickson, S. B., D. M. Wilson, and L. H. Smith. "Dissolution of Uric Acid Stones." In Urolithiasis. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4899-0873-5_260.

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Rodman, John S. "Medical Management of Uric Acid Stones." In Pocket Guide to Kidney Stone Prevention. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11098-1_10.

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Davis, Lisa A. "Nutrition Management of Uric Acid Stones." In Pocket Guide to Kidney Stone Prevention. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11098-1_9.

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Desai, Anne-Marie. "Nutritional Management of Uric Acid Stones." In Nutritional and Medical Management of Kidney Stones. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15534-6_10.

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Mitra, Shimontini, and Robert A. Cohen. "Medical Management of Uric Acid Stones." In Nutritional and Medical Management of Kidney Stones. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15534-6_9.

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Sakhaee, Khashayar. "Medical Management: Uric Acid and Cystine Stones." In Urinary Tract Stone Disease. Springer London, 2010. http://dx.doi.org/10.1007/978-1-84800-362-0_57.

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Olweny, Ephrem O., and Margaret S. Pearle. "Citrate Therapy for Calcium and Uric Acid Stones." In Urolithiasis. Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-4387-1_89.

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Conference papers on the topic "Uric Acid Stones"

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Wang, J., M. Qu, S. Leng, and C. H. McCollough. "Differentiation of uric acid versus non-uric acid kidney stones in the presence of iodine using dual-energy CT." In SPIE Medical Imaging. SPIE, 2010. http://dx.doi.org/10.1117/12.845046.

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Glickman, Randolph D., Susan T. Weintraub, Neeru Kumar, Nicole S. Corbin, Omid Lesani, and Joel M. H. Teichman. "Further characterization of photothermal breakdown products of uric acid stones following holmium:YAG laser lithotripsy." In BiOS 2000 The International Symposium on Biomedical Optics, edited by Donald D. Duncan, Jeffrey O. Hollinger, and Steven L. Jacques. SPIE, 2000. http://dx.doi.org/10.1117/12.388040.

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Lo, Edmond Y., David I. Rosen, and Albert W. Bailey. "Kidney stone identification from x-ray images using neural networks." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tudd6.

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A priori knowledge of kidney stone composition is an important factor in determining the optimal method of therapy. In this study, we have shown that stone composition can be determined from x-ray images. This was accomplished by using 25 mathematical constructs to describe the stone image and by using these as inputs to a neural network for pattern recognition. A data base of stone images spanning the compositions of commonly occurring kidney stones of calcium oxalate, uric acid, struvite, and brushite and cystine stones was created by digitizing of the x-ray images. For each image, a region-
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Gui, Qin, Poonam Bhadja, and Jian-Ming Ouyang. "Relationship between uric acid stone formation and urinary crystallite components — an investigation of 109 cases of patients with UA stones." In 2016 International Conference on Advanced Materials, Technology and Application (AMTA2016). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813200470_0056.

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Maalouf, Naim M., James C. Williams, Andrew P. Evan, James E. Lingeman, and James A. McAteer. "Type 2 Diabetes and Uric Acid Nephrolithiasis." In RENAL STONE DISEASE 2: 2nd International Urolithiasis Research Symposium. AIP, 2008. http://dx.doi.org/10.1063/1.2998021.

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Abramenko, Victoria Rodionovna, Natalia Ivanovna Zhenihova, and Egor Ivanovich Popkov. "COMPLEX OF PATHOMORPHOLOGICAL CHANGES IN REPTILE ORGANS IN URICATE DIATESIS." In Themed collection of papers from Foreign international scientific conference «Joint innovation - joint development». by HNRI «National development» in cooperation with PS of UA. December 2024. Crossref, 2025. https://doi.org/10.37539/241226.2024.73.33.031.

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Uric acid diathesis is a disease characterized by metabolic disorders and subsequently leads to precipitation of protein metabolism products of nucleoproteins - uric acid and urates (uric acid salts), which are normally in a dissolved state, from the urine. Uric acid diathesis can be a hereditary pathology and be the result of insufficient or absent certain enzymes, or it can be a consequence of a previous disease, such as: liver disease, pancreas, pyelonephritis, cystitis. Endocrinological diseases and anatomical changes and infections of various nature in the urinary tract are also predispos
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SALMAN, Alea Farhan, Huda Ibraheem ABD-AL-LATTEF, and Mushtaq Mufleh KHAZEEM. "EFFECT OF DIFFERENT FREEZING PERIODS OF SERUM SAMPLES ONCOMMON BIOCHEMICAL TESTS." In III.International Scientific Congress of Pure,Appliedand Technological Sciences. Rimar Academy, 2021. http://dx.doi.org/10.47832/minarcongress3-6.

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Blood samples are often collected, stored for certain periods and analyzed in the laboratory, and this affects the results of the analysis. The aim of this study was to determine the analytical persistence of serum samples expose to storage temperature range and times prior to analysis. Materials and methods: Serum samples were obtained from 36 persons. After measuring the fresh sample, the rest of the serum sample was divided into 5 groups and stored at -20 ˚C. A group of sera was kept frozen for up to 42 days then analyzed for stability. A total of 9 chemistry analytics were assayed(glucose,
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Mohammad HUSSEIN, Diyar, Khalid Hadi KADHIM, and Shaima Khazaal WAAD. "REVIEW OF THE ANATOMICAL STRUCTURES AND ROLES OF THE BIRD’S DIGESTIVE SYSTEM." In VII. INTERNATIONAL SCIENTIFIC CONGRESSOF PURE,APPLIEDANDTECHNOLOGICAL SCIENCES. Rimar Academy, 2023. http://dx.doi.org/10.47832/minarcongress7-11.

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The goal this reviews was to determined the influence of the diet on digestive system in the birds and roles of digestive tract. Birds have a very complex digestive system, which is thought to have a significant impact on how well they utilize the nutrition that they consume. It is expected that the stomach, intestines, cecum, proventriculus, and gizzard of herbivorous birds will be larger than those of carnivorous birds, whereas herbivorous birds tend to have longer, more complex digestive tracts. This may be due to herbivorous require high time and energy to the breakdown of cellulose. Their
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Reports on the topic "Uric Acid Stones"

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Mousavi, Ava, Rebecca Takele, Bree'ava Limbrick, Karan Thaker, and Kymora Scotland. Oral Dissolution Therapy of Uric Acid Stones: A Systematic Review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2024. http://dx.doi.org/10.37766/inplasy2024.5.0057.

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