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renal calculi and diet

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https://www.readbyqxmd.com/read/27488444/obesity-and-urolithiasis-evidence-of-regional-influences
#1
Alberto Trinchieri, Emanuele Croppi, Emanuele Montanari
There is evidence that obese patients have an increased risk of renal stone formation, although this relationship could be less evident in some populations. The aim of this study was to evaluate the impact of overweight and obesity on the risk of renal stone formation in a population consuming a Mediterranean diet and to better elucidate the mechanisms underlying the increased risk of urolithiasis observed in obese subjects. We performed a retrospective review of 1698 stone forming patients (mean age 45.9 ± 14...
August 3, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27430498/-pathogenic-factors-in-calcium-oxalate-stones-epidemiological-investigation
#2
H Kaaroud El Jery, A Harzallah, S Chouchi, E Talbi, H Baccouch, J Abdelmoula, A Bouzouita, M Chebil, F Ben Hamida, T Ben Abdallah
INTRODUCTION: Calcium oxalate stones are the most common urolithiasis. Changes in dietary habits, socio-economic and health status of populations explain its progression. The aim of our study was to determine metabolic factors leading to lithiasis and clarify its causes. PATIENTS AND METHODS: This is a retrospective study of 100 patients with calcium oxalate stones identified by morpho-constitutional study, collected in our department over a period of 5 years (2008-2013)...
June 2016: Progrès en Urologie
https://www.readbyqxmd.com/read/26901697/the-potential-influence-of-the-microbiota-and-probiotics-on-women-during-long-spaceflights
#3
Camilla Urbaniak, Gregor Reid
Humans have been exploring space for almost 55 years but space travel comes with many psychological and physiological changes that astronauts have to adapt to, both during and post flight missions. Now, with the reality of such missions lasting years, maintaining proper health of the flight crew is a high priority. While conditions such as nausea, bone loss, renal calculi and depression have been recognized, and approaches to medical and surgical care in space considered, the influence of the microbiota could be of added significance in maintaining astronaut health...
2016: Women's Health
https://www.readbyqxmd.com/read/26747978/a-combined-dietary-chronic-toxicity-and-two-year-carcinogenicity-study-of-2r-4r-monatin-salt-in-sprague-dawley-rats
#4
Witty A Brathwaite, Christine M Crincoli, Alex K Eapen, Marisa O Rihner, Andrey I Nikiforov, Amera K Remick
In a combined chronic toxicity/carcinogenicity study, groups of Crl:CD(SD) rats were fed 0 (2 control groups), 5000, 20,000, or 40,000 ppm (2R,4R)-monatin salt (hereafter "R,R-monatin") in the diet for up to one year in the chronic toxicity phase and up to two years in the carcinogenicity phase. There were no adverse effects on survival, incidence of palpable masses, neoplasms, organ weights, or ophthalmic examinations. The only notable effect was statistically significantly lower mean body weights and body weight gains in all treated groups generally throughout the study, which were most likely a result of caloric dilution of the test diets...
May 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/26684317/obstructive-uropathy-and-severe-acute-kidney-injury-from-renal-calculi-due-to-adenine-phosphoribosyltransferase-deficiency
#5
Siew Le Chong, Yong Hong Ng
BACKGROUND: Adenine phosphoribosyltransferase (APRT) deficiency is an uncommon genetic cause of chronic kidney disease due to crystalline nephropathy. METHODS: A case of a Chinese boy with APRT deficiency presenting with severe acute kidney injury secondary to obstructive uropathy from multiple renal calculi was reviewed. RESULTS: The patient underwent staged removal of the calculi. Infrared spectrometry of the renal calculi showed 2,8-dihydroxyadenine...
May 2016: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/26678365/struvite-urolithiasis-in-long-evans-rats
#6
Jassia Pang, Tiffany M Borjeson, Nicola M A Parry, James G Fox
Struvite urinary calculi, which are composed of magnesium, ammonium, and phosphate, can cause complications including sepsis and renal failure. Struvite calculi were identified within the urinary bladder and renal pelvis of 2 Long-Evans rats that died within days after arrival from a commercial vendor. The remaining rats in the shipment were screened by physical examination, radiography, and ultrasonography, revealing an additional 2 animals that were clinically affected. These rats were euthanized, necropsied, and yielded similar findings to those from the first 2 rats...
December 2015: Comparative Medicine
https://www.readbyqxmd.com/read/26182729/childhood-bladder-stones-an-endemic-disease-of-developing-countries
#7
Bhamar Lal, Jai Pal Paryani, Shafique-ur-Rehman Memon
BACKGROUND: Bladder calculi are one of the commonest health problems in young children especially in rural and underprivileged areas. METHODS: All children of bladder stones operated at District Headquarter Hospital Mithi from July 2009 to June 2012 were included in this cross-sectional study. Data was collected regarding age, sex, address (rural or urban), body weight, duration of breast feeding, weaning, detailed dietary history regarding milk type, volume, amount of water intake, recurrent diarrhoea, urinary tract infection (UTI), family history, and socioeconomic history...
January 2015: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/26174589/calcium-supplements-benefits-and-risks
#8
REVIEW
I R Reid, S M Bristow, M J Bolland
Calcium is an essential element in the diet, but there is continuing controversy regarding its optimal intake, and its role in the pathogenesis of osteoporosis. Most studies show little evidence of a relationship between calcium intake and bone density, or the rate of bone loss. Re-analysis of data from the placebo group from the Auckland Calcium Study demonstrates no relationship between dietary calcium intake and rate of bone loss over 5 years in healthy older women with intakes varying from <400 to >1500 mg day(-1) ...
October 2015: Journal of Internal Medicine
https://www.readbyqxmd.com/read/26150027/dietary-treatment-of-urinary-risk-factors-for-renal-stone-formation-a-review-of-clu-working-group
#9
REVIEW
Domenico Prezioso, Pasquale Strazzullo, Tullio Lotti, Giampaolo Bianchi, Loris Borghi, Paolo Caione, Marco Carini, Renata Caudarella, Manuel Ferraro, Giovanni Gambaro, Marco Gelosa, Andrea Guttilla, Ester Illiano, Marangella Martino, Tiziana Meschi, Piergiorgio Messa, Roberto Miano, Giorgio Napodano, Antonio Nouvenne, Domenico Rendina, Francesco Rocco, Marco Rosa, Roberto Sanseverino, Annamaria Salerno, Sebastiano Spatafora, Andrea Tasca, Andrea Ticinesi, Fabrizio Travaglini, Alberto Trinchieri, Giuseppe Vespasiani, Filiberto Zattoni
OBJECTIVE: Diet interventions may reduce the risk of urinary stone formation and its recurrence, but there is no conclusive consensus in the literature regarding the effectiveness of dietary interventions and recommendations about specific diets for patients with urinary calculi. The aim of this study was to review the studies reporting the effects of different dietary interventions for the modification of urinary risk factors in patients with urinary stone disease. MATERIALS AND METHODS: A systematic search of the Pubmed database literature up to July 1, 2014 for studies on dietary treatment of urinary risk factors for urinary stone formation was conducted according to a methodology developed a priori...
July 7, 2015: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/26018495/organic-selenium-alleviated-the-formation-of-ethylene-glycol-induced-calcium-oxalate-renal-calculi-by-improving-osteopontin-expression-and-antioxidant-capability-in-dogs
#10
Yongwang Liu, Haibin Xu, Wenting Zhong, Qingpeng Shen, Tenghan Zhuang, Kehe Huang
Twenty one-year-old local male dogs were randomly assigned into four groups (five dogs per group). The control and the ethylene glycol (EG) groups were fed basal diets without and with EG, and the EG+sodium selenite (EG+SS) and EG+selenium yeast (EG+SY) groups were fed basal diets with EG containing SS and SY, respectively. Blood, urine, and renal samples were taken after 18 weeks of feeding. The results showed that compared with the control group, the serum calcium levels and antioxidase activities significantly decreased in the EG group...
December 2015: Biological Trace Element Research
https://www.readbyqxmd.com/read/25392345/the-efficacy-of-antioxidant-therapy-against-oxidative-stress-and-androgen-rise-in-ethylene-glycol-induced-nephrolithiasis-in-wistar-rats
#11
M R Naghii, M Jafari, M Mofid, E Eskandari, M Hedayati, K Khalagie
Administration of natural antioxidants has been used to protect against nephrolithiasis. Urolithiasis was induced by ethylene glycol (EG) in Wistar rats. For 4 weeks, group 1 (control) was fed with a standard commercial diet. Group 2 received the same diet with 0.75% of EG. Group 3 received EG plus the diet and water added with antioxidant nutrients and lime juice as the dietary source of citrate (EG + AX). Group 4 same as group 3 with no EG in water. For 8 weeks, group 5 was fed the standard diet with EG in water for the first 28 days, followed by no EG...
July 2015: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/25275760/the-impact-of-ramadan-fast-on-patients-with-gout
#12
George Habib, Samih Badarny, Maroun Khreish, Fadi Khazin, Vivian Shehadeh, Geries Hakim, Suheil Artul
BACKGROUNDS: Ramadan fast is a religious custom in Islam. Increased serum uric acid level during this month had been reported in past studies of nongout patients. OBJECTIVES: The objective of this study was to assess the impact of Ramadan fast on patients with gout. METHODS: All Moslem patients with gout from the registry of Nazareth Hospital, who intended to fast during Ramadan, were asked to participate in our study (group 1). Data regarding age, gender, income, education, duration of gout, meds, adherence to low-purine diet, and gouty attacks were documented...
October 2014: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/25175550/recombinant-lactobacillus-plantarum-expressing-and-secreting-heterologous-oxalate-decarboxylase-prevents-renal-calcium-oxalate-stone-deposition-in-experimental-rats
#13
Ponnusamy Sasikumar, Sivasamy Gomathi, Kolandaswamy Anbazhagan, Albert Abhishek, Eldho Paul, Varadaraj Vasudevan, Sundaresan Sasikumar, Govindan Sadasivam Selvam
BACKGROUND: Calcium oxalate (CaOx) is the major constituent of about 75% of all urinary stone and the secondary hyperoxaluria is a primary risk factor. Current treatment options for the patients with hyperoxaluria and CaOx stone diseases are limited. Oxalate degrading bacteria might have beneficial effects on urinary oxalate excretion resulting from decreased intestinal oxalate concentration and absorption. Thus, the aim of the present study is to examine the in vivo oxalate degrading ability of genetically engineered Lactobacillus plantarum (L...
2014: Journal of Biomedical Science
https://www.readbyqxmd.com/read/25110210/boron-and-antioxidants-complex-a%C3%A2-new-concept-for-the-treatment-of-kidney-stones-without-rigorous-pain
#14
M R Naghii
OBJECTIVE: Stone disease is an increasingly common form of renal disease. Diet plays an important role in expression of the tendency to stone formation. Renal epithelial cell injury by reactive oxygen species is a pre-requisite step and the administration of natural antioxidants has been used to protect against nephrolithiasis. Considering the nutrients, boron as an ultra-trace element is revealing to enhance the antioxidant defense mechanism and along vitamin status seems to have an impact on the stone removal...
July 2014: Endocrine Regulations
https://www.readbyqxmd.com/read/25086903/on-the-origin-of-calcium-oxalate-monohydrate-papillary-renal-stones
#15
Fèlix Grases, Antonia Costa-Bauzá, Carlo R Bonarriba, Enrique C Pieras, Rafael A Fernández, Adrián Rodríguez
Calcium oxalate monohydrate (COM) papillary calculi can be initiated by subepithelial calcification of the renal papillae. Hydroxyapatite disruption of the papillary epithelial layer can become the nidus of a COM papillary calculus. This study evaluated the causes of papillary tissue calcifications in 60 patients with calcium oxalate lithiasis, 30 with COM papillary and 30 with calcium oxalate dihydrate (COD) calculi. Urinary redox potential was higher in the COM than the COD group, suggesting that the former is more deficient in antioxidants due to increased oxidative stress...
January 2015: Urolithiasis
https://www.readbyqxmd.com/read/24951497/intestinal-adaptations-in-chronic-kidney-disease-and-the-influence-of-gastric-bypass-surgery
#16
REVIEW
Marguerite Hatch
Studies have shown that compensatory adaptations in gastrointestinal oxalate transport can impact the amount of oxalate excreted by the kidney. Hyperoxaluria is a major risk factor in the formation of kidney stones, and oxalate is derived from both the diet and the liver metabolism of glyoxylate. Although the intestine generally absorbs oxalate from dietary sources and can contribute as much as 50% of urinary oxalate, enteric oxalate elimination plays a significant role when renal function is compromised. While the mechanistic basis for these changes in the direction of intestinal oxalate movements in chronic renal failure involves an upregulation of angiotensin II receptors in the large intestine, enteric secretion/excretion of oxalate can also occur by mechanisms that are independent of angiotensin II...
September 2014: Experimental Physiology
https://www.readbyqxmd.com/read/24696310/metabolic-syndrome-and-nephrolithiasis-a-systematic-review-and-meta-analysis-of-the-scientific-evidence
#17
REVIEW
Domenico Rendina, Gianpaolo De Filippo, Lanfranco D'Elia, Pasquale Strazzullo
The metabolic syndrome is a cluster of cardiometabolic alterations at least partly dependent on reduced insulin sensitivity and hyperinsulinemia that can have several renal implications. A systematic review and meta-analysis of studies available in the international literature in English language demonstrates that the metabolic syndrome occurrence is associated with a significantly higher prevalence of nephrolithiasis (odds ratio 1.29, 95% confidence intervals: 1.11-1.51). The pathophysiological bases of this association are currently not completely understood, however...
August 2014: Journal of Nephrology
https://www.readbyqxmd.com/read/24692375/bilateral-supernumerary-kidneys-how-much-is-too-much
#18
Ruchir Patel, Hanish Singh, David Willens, Sean Drake
A middle aged African-American woman with a stable history of carnitine palmitoyl transferase II (CPT II) deficiency presented with myalgias for 1 week. Physical examination and laboratory findings were consistent with severe sepsis secondary to pyelonephritis leading to rhabdomyolysis. Subsequent CT of the abdomen revealed bilateral supernumerary kidneys with non-obstructive calculi within the supernumerary kidneys. Abnormal ureteral development of the supernumerary kidneys likely led to an increased risk for urinary tract infections (UTIs) and renal calculi resulting in pyelonephritis...
2014: BMJ Case Reports
https://www.readbyqxmd.com/read/24678942/the-association-between-renal-stone-disease-and-cholesterol-gallstones-the-easy-to-believe-and-not-hard-to-retrieve-theory-of-the-metabolic-syndrome
#19
REVIEW
Mohamed H Ahmed, Salma Barakat, Ahmed O Almobarak
Renal stone disease and gallstone disease are widely prevalent and costly disease across the globe. Both renal stone disease and gallstone disease are associated with a variety of diseases including obesity, metabolic syndrome, dyslipidemia, hypertension, insulin resistance diabetes and gout. Importantly, the presence of either renal stone disease or gallstone disease is associated with an increased risk of cardiovascular disease. In a recent study of the Atherosclerosis Risk in Communities (ARIC), individuals with a history of gallstones were 54% more likely to report a history of nephrolithiasis after adjusting for age, gender, body size and other factors...
July 2014: Renal Failure
https://www.readbyqxmd.com/read/24582682/reproductive-toxicity-in-rats-with-crystal-nephropathy-following-high-doses-of-oral-melamine-or-cyanuric-acid
#20
Cynthia B Stine, Renate Reimschuessel, Zachary Keltner, Cristina B Nochetto, Thomas Black, Nicholas Olejnik, Michael Scott, Omari Bandele, Sarah M Nemser, Andriy Tkachenko, Eric R Evans, Tina C Crosby, Olgica Ceric, Martine Ferguson, Betsy J Yakes, Robert Sprando
The industrial chemical melamine was used in 2007 and 2008 to raise the apparent protein content in pet feed and watered down milk, respectively. Because humans may be exposed to melamine via several different routes into the human diet as well as deliberate contamination, this study was designed to characterize the effect of high dose melamine or cyanuric acid oral exposure on the pregnant animal and developing fetus, including placental transfer. Clear rectangular crystals formed following a single triazine exposure which is a different morphology from the golden spherulites caused by combined exposure or the calculi formed when melamine combines with endogenous uric acid...
June 2014: Food and Chemical Toxicology
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