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High urine calcium

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https://www.readbyqxmd.com/read/29330573/tocotrienol-supplementation-suppressed-bone-resorption-and-oxidative-stress-in-postmenopausal-osteopenic-women-a-12-week-randomized-double-blinded-placebo-controlled-trial
#1
C-L Shen, S Yang, M D Tomison, A W Romero, C K Felton, H Mo
Tocotrienols have shown bone-protective effect in animals. This study showed that a 12-week tocotrienol supplementation decreased concentrations of bone resorption biomarker and bone remodeling regulators via suppressing oxidative stress in postmenopausal osteopenic women. INTRODUCTION: Tocotrienols (TT) have been shown to benefit bone health in ovariectomized animals, a model of postmenopausal women. The purpose of this study was to evaluate the effect of 12-week TT supplementation on bone markers (serum bone-specific alkaline phosphatase (BALP), urine N-terminal telopeptide (NTX), serum soluble receptor activator of nuclear factor-kappaB ligand (sRANKL), and serum osteoprotegerin (OPG)), urine calcium, and an oxidative stress biomarker (8-hydroxy-2'-deoxyguanosine (8-OHdG)) in postmenopausal women with osteopenia...
January 12, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29318214/urinary-calcium-excretion-and-risk-of%C3%A2-chronic-kidney-disease-in-the-general%C3%A2-population
#2
Jacob M Taylor, Lyanne M Kieneker, Martin H de Borst, Sipke T Visser, Ido P Kema, Stephan J L Bakker, Ron T Gansevoort
Introduction: High urinary calcium excretion (UCaE) has been shown to lead to accelerated renal function decline in individuals with renal tubular diseases. It is not known whether this association also exists in the general population. Therefore, we investigated whether high UCaE is associated with risk of developing chronic kidney disease (CKD) in community-dwelling subjects. Methods: Urine samples of 5491 subjects who were free of CKD at baseline and participated in the Prevention of Renal and Vascular End-Stage Disease study (a prospective, observational, general population-based cohort of Dutch men and women aged 28-75 years) were examined for UCaE...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29277881/quantitative-mineralogical-composition-of-calculi-and-urine-abnormalities-for-calcium-oxalate-stone-formers-a-single-center-results
#3
Andrey V Kustov, Alexander I Strelnikov
PURPOSE: The paper focuses on the relationship of risk factors and metabolic disorders with mineralogical composition of calculi, age and gender of calcium oxalate stone formers. MATERIALS AND METHODS: Stone mineralogical composition, 24 hour biochemistry and pH-profile of urine were examined for sixty four stone formers using powder X-ray diffraction, spectrophotometric and potentiometric techniques. RESULTS: The analysis indicated that 44 % of calculi were composed of pure calcium oxalate monohydrate, whereas other 56 % contained both monohydrate and dihydrate or usually their mixtures with hydroxyl apatite...
December 26, 2017: Urology Journal
https://www.readbyqxmd.com/read/29234857/high-frequency-and-wide-range-of-human-kidney-papillary-crystalline-plugs
#4
Léa Huguet, Marine Le Dudal, Marine Livrozet, Dominique Bazin, Vincent Frochot, Joëlle Perez, Jean-Philippe Haymann, Isabelle Brocheriou, Michel Daudon, Emmanuel Letavernier
Most of kidney stones are supposed to originate from Randall's plaque at the tip of the papilla or from papillary tubular plugs. Nevertheless, the frequency and the composition of crystalline plugs remain only partly described. The objective was to assess the frequency, the composition and the topography of papillary plugs in human kidneys. A total of 76 papillae from 25 kidneys removed for cancer and without stones were analysed by immunohistochemistry combined with Yasue staining, field emission-scanning electron microscopy and Fourier transformed infrared micro-spectroscopy...
December 12, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29202723/changes-in-urinary-risk-profile-after-short-term-low-sodium-and-low-calcium-diet-in-recurrent-swiss-kidney-stone-formers
#5
Harald Seeger, Andrea Kaelin, Pietro M Ferraro, Damian Weber, Philippe Jaeger, Patrice Ambuehl, William G Robertson, Robert Unwin, Carsten A Wagner, Nilufar Mohebbi
BACKGROUND: Kidney stone disease is common in industrialized countries. Recently, it has attracted growing attention, because of its significant association with adverse renal outcomes, including end stage renal disease. Calcium-containing kidney stones are frequent with high recurrence rates. While hypercalciuria is a well-known risk factor, restricted intake of animal protein and sodium, combined with normal dietary calcium, has been shown to be more effective in stone prevention compared with a low-calcium diet...
December 4, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29198849/oxalate-degrading-enzyme-recombined-lactic-acid-bacteria-strains-reduce-hyperoxaluria
#6
Chenming Zhao, Huan Yang, Xiaojing Zhu, Yang Li, Ning Wang, Shanfu Han, Hua Xu, Zhiqiang Chen, Zhangqun Ye
OBJECTIVE: To develop recombinant lactic acid bacteria (LAB) strains that express oxalate-degrading enzymes through biotechnology-based approach for the treatment of hyperoxaluria by oral administration. MATERIAL AND METHODS: The coding gene of oxalate decarboxylase (ODC) and oxalate oxidase (OxO) was transformed into Lactococcus lactis MG1363. The oxalate degradation ability in vitro was evaluated in media with high concentration of oxalate. Hyperoxaluria rat models through high oxalate diet were given recombinant LAB through oral administration...
November 30, 2017: Urology
https://www.readbyqxmd.com/read/29140511/two-fatal-cases-involving-cardiovascular-drugs-diltiazem-and-amlodipine
#7
Luca Morini, Matteo Moretti, Francesca Brandolini, Antonio Marco Maria Osculati, Angelo Groppi, Claudia Vignali
A liquid chromatographic tandem mass spectrometric method for the identification and quantification of 18 cardiovascular drugs was developed in order to evaluate two cases of fatal intoxication involving diltiazem and amlodipine respectively. Samples were simply diluted and centrifuged using a three-steps procedure with methanol, acetonitrile and mobile phase. The method proved to be selective and all the validation parameters fulfilled the acceptance criteria. In particular, linearity was studied in the range limits of quantitation (LOQ)-1,000 ng/mL (LOQ ranging from 0...
November 13, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29117629/medical-and-dietary-interventions-for-preventing-recurrent-urinary-stones-in-children
#8
REVIEW
Adam Kern, Gwen Grimsby, Helen Mayo, Linda A Baker
BACKGROUND: Nephrolithiasis, or urinary stone disease, in children causes significant morbidity, and is increasing in prevalence in the North American population. Therefore, medical and dietary interventions (MDI) for recurrent urinary stones in children are poised to gain increasing importance in the clinical armamentarium. OBJECTIVES: To assess the effects of medical and dietary interventions (MDI) for the prevention of idiopathic urinary stones in children aged from one to 18 years...
November 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29095693/reference-intervals-for-stone-risk-factors-in-24-h-urine-among-healthy-adults-of-the-han-population-in-china
#9
Zanlin Mai, Xiaoxia Li, Zelin Cui, Wenqi Wu, Yongda Liu, Lili Ou, Yueping Liang, Zhijian Zhao, Yang Liu, Xing Mai, Wei Zhu, Tao Zhang, Chao Cai, Houmeng Yang, Guohua Zeng
BACKGROUND: The aim of the study was to establish reference intervals for 24-h urinary stone risk factors in the healthy Chinese Han population. METHODS: From May 2013 to July 2014, we collected and analyzed 24-h urine samples from healthy adult Han population during a cross-sectional study across China. The protocol for analysis of 24-h urine included volume, pH, oxalate, citrate, sodium, potassium, chloride, calcium, phosphorous, creatinine, urate, magnesium, the ion activity products of calcium oxalate (AP(CaOx) indexs) and calcium phosphate (AP(CaP) indexs)...
November 2, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29073223/increased-dietary-long-chain-polyunsaturated-fatty-acids-alter-serum-fatty-acid-concentrations-and-lower-risk-of-urine-stone-formation-in-cats
#10
Jean A Hall, Jeff A Brockman, Stephen J Davidson, Jen M MacLeay, Dennis E Jewell
The lifespan of cats with non-obstructive kidney stones is shortened compared with healthy cats indicating a need to reduce stone formation and minimize chronic kidney disease. The purpose of this study was to investigate the effects of increasing dietary polyunsaturated fatty acids (PUFA) on urine characteristics. Domestic-short-hair cats (n = 12; mean age 5.6 years) were randomized into two groups and fed one of two dry-cat foods in a cross-over study design. For one week before study initiation, all cats consumed control food that contained 0...
2017: PloS One
https://www.readbyqxmd.com/read/29038707/prevalence-of-idiopathic-hypercalciuria-in-children-with-urinary-system-related-symptoms-attending-a-pediatric-hospital-in-bandar-abbas-in-2014
#11
Maryam Esteghamati, Kambiz Ghasemi, Marie Nami
BACKGROUND: Idiopathic hypercalciuria is a group of diseases which can be manifested with urinary symptoms. Its importance is due to high prevalence, recurrent infections, and stone formations which are often asymptomatic. OBJECTIVE: The objective of this study was to determine the prevalence of idiopathic hypercalciuria in children with urinary system related symptoms in Bandar Abbas in 2014. METHODS: This descriptive cross-sectional study was done in 2014 in a children's hospital in Bandar Abbas (southern Iran) on 321 children who were between 2 months to 14 years old...
September 2017: Electronic Physician
https://www.readbyqxmd.com/read/29038192/two-gaps-too-many-three-clues-too-few-do-elevated-osmolal-and-anion-gaps-with-crystalluria-always-mean-ethylene-glycol-poisoning
#12
Maneesh Gaddam, Ravi Kanth Velagapudi, Emad Abu Sitta, Abed Kanzy
A 60-year-old African-American man with a medical history significant for heavy alcohol abuse, hypertension, delirium tremens, nephrolithiasis and seizure disorder was brought to the hospital with altered mental status. He was found to have high anion gap metabolic acidosis with significantly elevated lactate along with an elevated osmolal gap and calcium oxalate crystals in his urine. With this combination of findings, ethylene glycol poisoning was high in the differential. This case report describes why ethylene glycol poisoning was not the diagnosis in this patient despite the presence of these three classic laboratory findings, therefore emphasising the fact that these findings should not be taken at face value because they can be seen collectively in a patient yet each have a different cause...
October 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29017699/urinary-calcium-excretion-and-bone-turnover-in-osteoporotic-patients%C3%A2
#13
Amr El-Husseini, Amit Chakraborty, Qingcong Yuan, Saqib Inayatullah, Heather Bush, B Peter Sawaya
INTRODUCTION: It is well documented that patients with osteoporosis (OP) have high incidence of hypercalciuria (HC). However, the mechanism of HC in patients with OP is not well established. It is thought to be the result of high bone turnover (HBT) with excessive bone resorption. OP also frequently presents with low bone turnover (LBT). At this time, it is not clear whether OP with LBT is also associated with hypercalciuria. PURPOSE: The purpose of this study is to evaluate urinary calcium excretion in osteoporotic patients with HBT and LBT...
November 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28993832/-diagnostics-and-treatment-of-primary-hyperparathyroidism
#14
C Nies
Primary hyperparathyroidism is a disease that occurs more frequently than generally thought and is often overlooked. Classical symptoms are bone pain and osteoporosis, renal calculi and peptic ulcers. Many patients are asymptomatic or have unspecific complaints. It is easy to establish the biochemical diagnosis based on calcium and parathormone (PTH) levels and 24-h urine calcium excretion. The most sensitive localization procedures for parathyroid adenomas are sonography and Tc-99(m)-MIBI scintigraphy. The indication for surgery is undisputed in symptomatic patients; however, there is controversy concerning patients without classical symptoms...
October 9, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28971740/physicochemical-and-microbiological-characterization-of-human-feces-and-urine-from-composting-toilets-in-abidjan-c%C3%A3-te-d-ivoire
#15
K R Effebi, G T Ballet, M A Seka, D T Baya, B L N'takpe
We assessed the physicochemical and microbiological properties of composting toilets products in Abidjan, (Côte d'Ivoire) for their potential use in agriculture. Samples of urine and feces were collected and analysed after 123 days of storage in plastic cans (urine) and 8 months of storage in closed composting bags (feces). Selected physicochemical parameters (ammonium, phosphorus, potassium, calcium, magnesium, cadmium, copper, lead and zinc) and pathogens (bacteria and helminths eggs) were monitored. Results showed that temperature and pH values were 26...
October 3, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28966756/preventive-kidney-stones-continue-medical-education
#16
REVIEW
Farahnak Assadi, Mastaneh Moghtaderi
Nephrolithiasis is a common health problem across the globe with a prevalence of 15%-20%. Idiopathic hypercalciuria is the most common cause of nephrolithiasis, and calcium oxalate stones are the most common type of stones in idiopathic hypercalciuric patients. Calcium phosphate stones are frequently associated with other diseases such as renal tubular acidosis type 1, urinary tract infections, and hyperparathyroidism. Compared with flat abdominal film and renal sonography, a noncontrast helical computed tomography scan of the abdomen is the diagnostic procedure of choice for detection of small and radiolucent kidney stones with sensitivity and specificity of nearly 100%...
2017: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28952687/-mineralogical-composition-of-urinary-stones-risk-factors-and-metabolic-disturbances-in-patients-with-calcium-oxalate-urolithiasis
#17
A V Kustov, A I Strelnikov, M A Moryganov, A O Airapetyan, P R Smirnov, E V Lyalyakina, S R Toms
AIM: To identify the most likely metabolic disturbances and risk factors for stone formation in a group of patients with calcium oxalate urolithiasis, and to establish the relationship between the mineralogical composition of calculi and impaired excretion of inhibitors and promoters of stone formation. MATERIALS AND METHODS: Fifty patients with calcium oxalate urolithiasis were tested using a complex of physicochemical methods. Patients assessment included evaluation of quantitative mineralogical composition of calculi, daily urine pH profile and daily urinary excretion of urates, calcium, magnesium, oxalate, phosphate and citrate ions...
September 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28951890/the-induction-of-oxalate-metabolism-in-vivo-is-more-effective-with-functional-microbial-communities-than-with-functional-microbial-species
#18
Aaron W Miller, Colin Dale, M Denise Dearing
For mammals, oxalate enters the body through the diet or is endogenously produced by the liver; it is removed by microbial oxalate metabolism in the gut and/or excretion in feces or urine. Deficiencies in any one of the these pathways can lead to complications, such as calcium oxalate urinary stones. While considerable research has been conducted on individual oxalate-degrading bacterial isolates, interactions between oxalate and the gut microbiota as a whole are unknown. We examined the reduction in oxalate excretion in a rat model following oral administration of fecal microbes from a mammalian herbivore adapted to a high oxalate diet or to fecal transplants consisting of two different formulations of mixed oxalate-degrading isolates...
September 2017: MSystems
https://www.readbyqxmd.com/read/28940108/cytoprotective-effects-of-the-red-marine-alga-chondrus-canaliculatus-against-maneb-induced-hematotoxicity-and-bone-oxidative-damages-in-adult-rats
#19
Imen Jaballi, Hajer Ben Saad, Intidhar Bkhairia, Boutheina Cherif, Choumous Kallel, Ons Boudawara, Michael Droguet, Christian Magné, Ahmed Hakim, Ibtissem Ben Amara
The current study aimed at evaluating the ability of a mineral and antioxidant-rich extract from Chondrus canaliculatus to improve maneb (MB)-induced toxicity in adult rat. The animals were divided into four groups: group 1 used as a control group, group 2 received MB, group 3 received MB + C. canaliculatus extract, and group 4 received only the algal extract. MB, a Mn-containing ethylene-bis-dithiocarbamate fungicide, induced oxidative stress damages, mineral perturbations in the plasma, urine, and bone, and genotoxicity in rats...
September 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28939127/urinary-melamine-excretion-and-increased-markers-of-renal-tubular-injury-in-patients-with-calcium-urolithiasis-a-cross-sectional-study
#20
Chia-Chu Liu, Tusty-Jiuan Hsieh, Chia-Fang Wu, Yi-Chun Tsai, Shu-Pin Huang, Yung-Chin Lee, Tsung-Yi Huang, Jung-Tsung Shen, Yii-Her Chou, Chun-Nung Huang, Wen-Jeng Wu, Ming-Tsang Wu
Environmental low-dose melamine exposure has been associated with urolithiasis risk in adults, but it is unclear if this exposure can cause early renal damage. This cross-sectional study investigated the association of this exposure and early renal damage in patients with calcium urolithiasis. We recruited patients diagnosed with upper urinary tract calcium urolithiasis from three hospitals in southwestern Taiwan between November 2010 and January 2015. All patients completed a structured questionnaire and provided one-spot urine samples for the measurement of melamine level and markers of early renal injury, including N-acetyl b-d-glucosaminidase (NAG), β2-microglobulin (β2-MG), and microalbumin...
December 2017: Environmental Pollution
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