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https://www.readbyqxmd.com/read/28923463/hyperparathyroidism
#1
REVIEW
John P Bilezikian, Leonardo Bandeira, Aliya Khan, Natalie E Cusano
Primary hyperparathyroidism is a common endocrine disorder of calcium metabolism characterised by hypercalcaemia and elevated or inappropriately normal concentrations of parathyroid hormone. Almost always, primary hyperparathyroidism is due to a benign overgrowth of parathyroid tissue either as a single gland (80% of cases) or as a multiple gland disorder (15-20% of cases). Primary hyperparathyroidism is generally discovered when asymptomatic but the disease always has the potential to become symptomatic, resulting in bone loss and kidney stones...
September 15, 2017: Lancet
https://www.readbyqxmd.com/read/28883679/the-relationship-between-nephrolithiasis-risk-with-body-fat-measured-by-body-composition-analyzer-in-obese-people
#2
Zohreh Bartani, Behzad Heydarpour, Ahmad Alijani, Masoud Sadeghi
BACKGROUND: Nephrolithiasis (kidney stones) continues to be a major cause of morbidity and healthcare spending that visceral and subcutaneous adipose tissue may associate with kidney stone formation. This study aimed to investigate the relationship between nephrolithiasis with visceral fat scale in obese people in Western Iran for the first time. MATERIALS AND METHODS: In 2017, 103 participants with BMI≥30 kg/m(2) were selected for the present study. The participants were divided into two groups, 52 as case group (having the kidney stone) and 58 as healthy control group (no kidney stone or history of the kidney stone or any other disease)...
June 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28882031/a-multiregional-italian-cohort-of-24-hour-urine-metabolic-evaluation-in-renal-stone-formers
#3
Francesco Esperto, Martino Marangella, Alberto Trinchieri, Michele Petrarulo, Roberto Miano
BACKGROUND: Nephrolithiasis is a common condition with several studies documenting an increased prevalence over the past four decades. EAU and AUA guidelines recommend 24-hour urine metabolic evaluation in high-risk stone formers. Aim of this study is to retrospectively evaluate the first three years of experience with Lithotest® (Biohealth Italia Srl, Turin, Italy) through the analysis of demographic, clinical and biochemical data collected from a large cohort of patients with kidney stones...
September 7, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28875258/molecular-analysis-of-oxalate-induced-endoplasmic-reticulum-stress-mediated-apoptosis-in-the-pathogenesis-of-kidney-stone-disease
#4
Albert Abhishek, Shaly Benita, Monika Kumari, Divya Ganesan, Eldho Paul, Ponnusamy Sasikumar, Ayyavu Mahesh, Subramani Yuvaraj, Tharmarajan Ramprasath, Govindan Sadasivam Selvam
Oxalate, a non-essential end product of metabolism, causes hyperoxaluria and eventually calcium oxalate (CaOx) stone disease. Kidney cells exposed to oxalate stress results in generation of reactive oxygen species (ROS) and progression of stone formation. Perturbations in endoplasmic reticulum (ER) result in accumulation of misfolded proteins and Ca(2+) ions homeostasis imbalance and serve as a common pathway for various diseases, including kidney disorders. ER stress induces up-regulation of pro-survival protein glucose-regulated protein 78 (GRP78) and pro-apoptotic signaling protein C/EBP homologous protein (CHOP)...
September 5, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28868511/optimization-of-urinary-dipstick-ph-are-multiple-dipstick-ph-readings-reliably-comparable-to-commercial-24-hour-urinary-ph
#5
Joel E Abbott, Daniel L Miller, William Shi, David Wenzler, Fuad F Elkhoury, Nishant D Patel, Roger L Sur
PURPOSE: Accurate measurement of pH is necessary to guide medical management of nephrolithiasis. Urinary dipsticks offer a convenient method to measure pH, but prior studies have only assessed the accuracy of a single, spot dipstick. Given the known diurnal variation in pH, a single dipstick pH is unlikely to reflect the average daily urinary pH. Our goal was to determine whether multiple dipstick pH readings would be reliably comparable to pH from a 24-hour urine analysis. MATERIALS AND METHODS: Kidney stone patients undergoing a 24-hour urine collection were enrolled and took images of dipsticks from their first 3 voids concurrently with the 24-hour collection...
September 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28830863/effectiveness-of-treatment-modalities-on-kidney-stone-recurrence
#6
Anna L Zisman
Nephrolithiasis is highly prevalent across all demographic groups in the Western world and beyond, and its incidence rates are rising. In addition to the morbidity of the acute event, stone disease often becomes a lifelong problem that requires preventative therapy to diminish ongoing morbidity. Across the majority of stone types, increased fluid intake and targeted dietary modifications are mainstays of therapy. Specific dietary interventions associated with reduced calcium stone risk include adequate dietary calcium intake and restriction of sodium, protein, and oxalate intake, among others...
August 22, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28827106/evaluation-of-biofilm-induced-urinary-infection-stone-formation-in-a-novel-laboratory-model-system
#7
Trace Hobbs, Logan N Schultz, Ellen G Lauchnor, Robin Gerlach, Dirk Lange
PURPOSE: Infection stones comprise approximately 15% of all urinary tract stones and are induced by infection with urease-positive pathogens. The bacteria within the stone matrix present significant treatment impediments compared to metabolic kidney stones. While much is known about how urinary composition regulates metabolic stone formation, there is a general lack of knowledge around which urinary factors regulate the rate of infection stone formation. Unfortunately, more in-depth research into infection stones is limited by the lack of suitable models for the real-time study of bacterial biofilm formation and stone formation under varying conditions...
August 18, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28774309/fungal-endophytes-associated-with-viola-odorata-linn-as-bioresource-for-pancreatic-lipase-inhibitors
#8
M Katoch, A Paul, G Singh, S N C Sridhar
BACKGROUND: As per the recent statistical reports of World Health Organisation (WHO), 13% of total global population is obese. Orlistat remains to be the only drug approved for the long term treatment of obesity. Recent findings highlighted severe adverse effects of orlistat that included hepatotoxicity, gall stones, kidney stones and acute pancreatitis. Therefore, search for new drug is required. The investigations based on endophytic natural products would prove pivotal in the global fight against this health issue...
August 3, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28770533/hyperuricemia-type-2-diabetes-mellitus-and-hypertension-an-emerging-association
#9
REVIEW
Ibrahim Mortada
Uric acid is the final oxidation product of purine metabolism in circulation and has been associated with the occurrence of gout and kidney stones. Type 2 diabetes mellitus and hypertension are two important public health challenges, and both are linked to increased risk of cardiovascular events. Hyperuricemia has recently emerged as an independent risk factor in the development of type 2 diabetes mellitus and hypertension through several proposed mechanisms. Few clinical trials investigated the use of uric acid lowering agents in the management of these two disease entities; however, their results provided encouraging evidence to a potential role for these agents in fighting disease burden...
September 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28762682/-use-of-citrate-in-patients-with-nephrolithiasis
#10
REVIEW
Martino Marangella
Citrate is a tricarboxylic acid and an intermediate metabolite of Krebs cycle. It contributes to oxidative metabolism of both kidney and liver. Alkaline sodium or potassium salts have the potential to increase alkaline reserve. In the kidney citrate is completely filtered at the glomerulus, undergoing to 10-40% tubular resorption. Renal insufficiency, even early, metabolic acidosis, potassium depletion induce hypocitraturia. Its importance in nephrolithiasis stems from its ability to form soluble complexes with calcium and to interfere with crystal formation, thus exerting a dual inhibition, thermodynamic and kinetic...
August 1, 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28718073/a-randomised-phase-ii-iii-study-to-evaluate-the-efficacy-and-safety-of-orally-administered-oxalobacter-formigenes-to-treat-primary-hyperoxaluria
#11
Dawn Milliner, Bernd Hoppe, Jaap Groothoff
Primary hyperoxaluria (PH) patients overproduce oxalate because of rare genetic errors in glyoxylate metabolism. Recurrent urolithiasis and/or progressive nephrocalcinosis are PH hallmarks and can lead to kidney damage, systemic oxalosis and death. Based on previous studies, we hypothesised that treatment with the oxalate-metabolizing bacterium Oxalobacter formigenes would mediate active elimination of oxalate from the plasma to the intestine of PH patients, thereby reducing urinary oxalate excretion (Uox)...
July 17, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28694730/topiramate-induced-metabolic-acidosis-and-kidney-stones-a-case-study
#12
Tomas Salek, Ivan Andel, Irena Kurfurstova
INTRODUCTION: The aim of this study is to present a case of 44 years old woman with topiramate induced metabolic acidosis and kidney stones. MATERIALS AND METHODS: The laboratory features of topiramate caused renal tubular acidosis in blood and urine during topiramate treatment, with correction of metabolic acidosis by potassium citrate, and after topiramate withdrawal are presented. Differential diagnosis of all possible causes of metabolic acidosis is discussed...
June 15, 2017: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/28681512/combined-liver-kidney-transplantation-for-primary-hyperoxaluria-type-2-a-case-report
#13
T Dhondup, E C Lorenz, D S Milliner, J C Lieske
Combined liver/kidney transplant is the preferred transplant option for most patients with primary hyperoxaluria type 1 (PH1) since orthotopic liver transplantation replaces the deficient liver-specific AGT enzyme, thus restoring normal metabolic oxalate production. However, primary hyperoxaluria type 2 (PH2) is caused by deficient glyoxylate reductase/hydroxypyruvate reductase (GRHPR), and this enzyme is widely distributed throughout the body. Though the relative abundance and activity of GRHPR in various tissues is not clear, some evidence suggests that the majority of enzyme activity may indeed reside within the liver...
July 6, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28655130/comparison-of-biochemical-parameters-of-blood-and-urine-in-spinal-cord-injury-patients-and-association-with-urinary-stone-formation
#14
Gülümser Aydin, Sibel Özbudak Demir, Timur Ekiz, Murat I Nanir, Aliye Tosun
OBJECTIVE: The aim of this study was to compare the biochemical parameters of the urine and blood in SCI patients and healthy subjects. METHODS: Thirty male patients with SCI were enrolled. Biochemical features of the urine and blood of the SCI patients were compared to healthy subjects. Extracted stones were analyzed by X-ray diffraction. RESULTS: A total of 30 patients with SCI (mean age of 28.77 ± 7.3 years) and 10 healthy subjects (mean age of 27...
June 3, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28653226/urinary-biomarkers-in-the-early-detection-and-follow-up-of-tubular-injury-in-childhood-urolithiasis
#15
Mehmet Taşdemir, Dilara Fuçucuoğlu, Suat Hayri Küçük, Meltem Erol, Özgül Yiğit, Ilmay Bilge
BACKGROUND: To investigate relationships among urinary biomarkers [kidney injury molecule-1 (KIM-1), N-acetyl-β-glucosaminidase (NAG)], neutrophil gelatinase-associated lipocalin (NGAL) levels and renal tubular injury in childhood urolithiasis. METHODS: Seventy children [36 girls, mean age: 7.3 ± 5.0 years (0.5-18.2)] with urolithiasis/microlithiasis and 42 controls [18 girls, mean age: 8.5 ± 3.8 years (0.9-16.2)] were included in this multicenter, controlled, prospective cohort study...
June 26, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28623397/different-effects-of-%C3%AE-linolenic-acid-gla-supplementation-on-plasma-and-red-blood-cell-phospholipid-fatty-acid-composition-and-calcium-oxalate-kidney-stone-risk-factors-in-healthy-subjects-from-two-race-groups-with-different-risk-profiles-pose-questions-about
#16
Allen L Rodgers, Dalielah Jappie-Mahomed, Paul J van Jaarsveld
Fatty acid (FA) composition of phospholipids in plasma and red blood cells (RBC) can influence calciuria, oxaluria and renal stone formation. In this regard, the ratio of arachidonic acid (AA) and its precursor linoleic acid (LA) appears to be important. Administration of γ-linolenic acid (GLA) has been shown to increase the concentration of dihomo-gamma linoleic acid (DGLA) relative to AA indicating that it may attenuate biosynthesis of the latter. Such effects have not been investigated in race groups having difference stone occurrence rates...
June 16, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28599030/pediatric-nephrolithiasis-a-review
#17
Tayaba Miah, Deepak Kamat
The incidence of pediatric nephrolithiasis is on the rise. The composition of kidney stones in children is different than in adults, as most stones in children have a composition of calcium oxalate and calcium phosphate mixed with a small amount of uric acid. The symptoms of pediatric nephrolithiasis are nonspecific. Computed tomography (CT) is the gold standard for diagnosis; however, because of radiation exposure associated with a CT scan, ultrasonography is also an accepted modality for the diagnosis. Extensive metabolic evaluation is important to rule out an underlying metabolic disorder...
June 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28587067/diet-induced-low-grade-metabolic-acidosis-and-clinical-outcomes-a-review
#18
Renata Alves Carnauba, Ana Beatriz Baptistella, Valéria Paschoal, Gilberti Helena Hübscher
Low-grade metabolic acidosis is a condition characterized by a slight decrease in blood pH, within the range considered normal, and feeding is one of the main factors that may influence the occurrence of such a condition. The excessive consumption of acid precursor foods (sources of phosphorus and proteins), to the detriment of those precursors of bases (sources of potassium, calcium, and magnesium), leads to acid-base balance volubility. If this condition occurs in a prolonged, chronic way, low-grade metabolic acidosis can become significant and predispose to metabolic imbalances such as kidney stone formation, increased bone resorption, reduced bone mineral density, and the loss of muscle mass, as well as the increased risk of chronic diseases such as type 2 diabetes mellitus, hypertension, and non-alcoholic hepatic steatosis...
May 25, 2017: Nutrients
https://www.readbyqxmd.com/read/28575878/kidney-calculi-pathophysiology-and-as-a-systemic-disorder
#19
Arash Shadman, Bahar Bastani
The pathophysiology of urinary stone formation is complex, involving a combination of metabolic, genetic, and environmental factors. Over the past decades, remarkable advances have been emerged in the understanding of the pathogenesis, diagnosis, and treatment of calcium kidney calculi. For this review, both original and review articles were found via PubMed search on pathophysiology, diagnosis, and management of urinary calculi. These resources were integrated with the authors' knowledge of the field. Nephrolithiasis is suggested to be associated with systemic disorders, including chronic kidney insufficiency, hematologic malignancies, endocrine disorders, autoimmune diseases, inflammatory bowel diseases, bone loss and fractures, hypertension, type 2 diabetes mellitus, metabolic syndrome, and vascular diseases like coronary heart diseases and most recently ischemic strokes...
May 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28522341/systemic-and-ocular-fluid-compounds-as-potential-biomarkers-in-age-related-macular-degeneration
#20
REVIEW
Eveline Kersten, Constantin C Paun, Rosa L Schellevis, Carel B Hoyng, Cécile Delcourt, Imre Lengyel, Tunde Peto, Marius Ueffing, Caroline C W Klaver, Sascha Dammeier, Anneke I den Hollander, Eiko K de Jong
Biomarkers can help unravel mechanisms of disease and identify new targets for therapy. They can also be useful in clinical practice for monitoring disease progression, evaluation of treatment efficacy and risk assessment in multifactorial diseases, such as age-related macular degeneration (AMD). AMD is a highly prevalent progressive retinal disorder for which multiple genetic and environmental risk factors have been described, but the exact etiology is not yet fully understood. Many compounds have been evaluated for their association with AMD...
May 15, 2017: Survey of Ophthalmology
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