keyword
MENU ▼
Read by QxMD icon Read
search

calcium urolithiasis

keyword
https://www.readbyqxmd.com/read/28335477/association-between-circulating-vitamin-d-level-and-urolithiasis-a-systematic-review-and-meta-analysis
#1
REVIEW
Henglong Hu, Jiaqiao Zhang, Yuchao Lu, Zongbiao Zhang, Baolong Qin, Hongbin Gao, Yufeng Wang, Jianning Zhu, Qing Wang, Yunpeng Zhu, Yang Xun, Shaogang Wang
Many studies compared the serum/plasma 1,25 dihydroxyvitamin D₃ (1,25(OH)₂D) and 25 hydroxyvitamin D₃ (25(OH)D) between people with and without nephrolithiasis, and their results were conflicting. After systematically searching PubMed, Web of Science, The Cochrane Library, CNKI, and the Wanfang Database, we conducted a meta-analysis. Thirty-two observational studies involving 23,228 participants were included. Meta-analysis of these studies showed that of stone formers (SFs), calcium SFs had significantly higher concentrations of 1,25(OH)₂D (weighted mean difference (WMD), 10...
March 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28324150/stress-stones-stress-recurrent-stones-a-self-propagating-cycle-difficulties-in-solving-this-dichotomy
#2
Montserrat Arzoz-Fabregas, Josep Roca-Antonio, Luis Ibarz-Servio, Dalielah Jappie-Mahomed, Allen Rodgers
Numerous studies have reported an association between stress and urolithiasis. Although urinary risk factors have been measured in several of these, compelling evidence of a causal relationship has not been established. A shortcoming is that alterations in single urinary parameters rather than ratios and quotients, which provide a more synergistic risk evaluation, have been measured. Recently, we speculated about a possible association between chronic stress and stone recurrence. This presents an intriguing dichotomy of whether stress causes stones or vice versa, or whether they are linked in a self-propagating stress-stones-stress-recurrence cycle...
March 21, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28291706/medical-expulsive-therapy-use-in-emergency-department-patients-diagnosed-with-ureteral-stones
#3
Ralph C Wang, Newton Addo, Thomas Chi, Christopher Moore, Michael Mallin, Stephen Shiboski, Marshall Stoller, Rebecca Smith-Bindman
OBJECTIVE: Recent studies have clarified the role of alpha-blockers, such as tamsulosin, for patients diagnosed with ureteral stones <10mm not requiring an urgent intervention. Prior studies have reported low rates of use of MET by emergency physicians. We sought to describe patterns of alpha-blocker use and to determine factors associated with utilization in patients diagnosed with ureterolithiasis in the ED. METHODS: We used data from a randomized trial of CT scan vs...
February 28, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28260226/toward-a-new-insight-of-calcium-oxalate-stones-in-drosophila-by-micro-computerized-tomography
#4
Wen-Chi Chen, Huey-Yi Chen, Po-Chi Liao, Shih-Jing Wang, Ming-Yen Tsai, Yung-Hsiang Chen, Wei-Yong Lin
We previously developed an animal model of calcium oxalate (CaOx) deposition on the Malphigian tubules of Drosophila melanogaster as a model of urolithiasis. Here, we introduce a new tool for the study of anatomical structure for Drosophila. As a consequence of technical development, the invention of micro-computerized tomography (CT) has been introduced to the small animal, such as rat and mice. We used Drosophila as a model organism and fed the flies 0.5% lithogenic agent ethylene glycol for 3 weeks. Samples were simply prepared for further scanned by micro-CT to scan samples at 800 nm resolution...
March 4, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28258740/uric-acid-versus-non-uric-acid-renal-stones-in%C3%A2-vivo-differentiation-with-spectral-ct
#5
F Lombardo, M Bonatti, G A Zamboni, G Avesani, N Oberhofer, M Bonelli, A Pycha, R Pozzi Mucelli, G Bonatti
AIM: To differentiate uric acid from non-uric acid renal stones based on their spectral attenuation values. MATERIALS AND METHODS: The present study was approved by the institutional review board and the need for informed consent was waived. Thirty-three consecutive patients (21 men, 12 women; mean age 55 years) with symptomatic urolithiasis underwent dual-energy computed tomography (DECT) using a second-generation dual-source CT system. Stone composition was assessed by means of chemical analysis after extraction or spontaneous expulsion...
February 28, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28248014/-clinical-implications-of-shear-wave-ultrasound-elastography-for-evaluation-of-urinary-stones
#6
I G Kraev, V I Rudenko, A V Amosov, G E Krupinov, T M Ganzha
INTRODUCTION: Currently, extracorporeal shock wave lithotripsy (ESWL) is a minimally invasive treatment for patients with urolithiasis. With advancing medical technology, elastography has evolved as a method for measuring the elasticity of tissues. AIM: To investigate the elasticity of urinary stones for assessing their physical and chemical composition. MATERIALS AND METHODS: The elasticity of urinary stones was determined before ESWL in 30 urolithiasis patients (18 men and 12 women, aged 25-65 years) using shear wave ultrasound elastography (SWUE)...
November 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247721/-genetic-risk-factors-for-recurrence-free-urolithiasis-in-the-russian-population
#7
O I Apolikhin, A V Sivkov, O V Konstantinova, P A Slominsky, T V Tupitsyna, D N Kalinichenko
PURPOSE: Search for and identification of possible associations of recurrence-free urolithiasis with polymorphisms of urolithiasis candidate genes in the Russian population. MATERIALS AND METHODS: The study involved 43 patients with recurrence-free urolithiasis, 13 (30.2%) women and 30 (69.8%) of men (main group) from Central Russia, and 189 healthy adults (control group) from the same region. The mean age of the main group was 42.5+/-13 years. The venous blood samples were used for the evaluation...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247652/-plant-derived-terpenes-in-treating-patients-with-urolithiasis
#8
Yu G Alyaev, V I Rudenko, A N Perekalina, I G Kraev, Zh Sh Inoyatov
Numerous metabolic abnormalities intrinsic to urolithiasis require drug therapy. At the same time, despite the constant expansion of synthetic drugs, plant-derived medications play a large role in the treatment and prevention of the disease. AIM: To evaluate the effect of a plant-derived preparation Rowatinex in patients with urolithiasis after extracorporeal shock wave lithotripsy (ESWL) and analyze the changes in blood and urine parameters in patients receiving the preparation. MATERIALS AND METHODS: Depending on the type of post-ESWL treatment, patients were divided into two groups...
April 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247625/-quantitative-mineralogical-analysis-and-structure-of-urinary-stones-in-patients-living-in-ivanovo-region
#9
A V Kustov, A I Strelnikov, P R Smirnov, S V Gusakova, M A Moryganov, S R Toms, S I Gruzdev, A O Airapetyan
This paper focuses on developing and implementing a method of quantitative mineralogical analysis of urinary stones based on powder diffraction data analysis using 4 Topas (Bruker) software. Mineralogical composition of 100 urinary stones from urolithiasis patients living in Ivanovo region was examined. More than 70% of stones consisted of calcium oxalate monohydrate (COM) and calcium oxalate dihydrate (COD), and their mixtures with hydroxylapatite. Forty four percent of urinary stones consisted of one component (COM, uric acid (UA) or, less frequently, hydroxyapatite (HA); 56% of urinary stones comprised two, three or four components...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28207316/calcium-sulfate-dihydrate-urolithiasis-in-a-pet-rabbit
#10
Jaroslav Kucera, Tamara Koristkova, Barbora Gottwaldova, Vladimir Jekl
CASE DESCRIPTION A 3-year-old sexually intact male rabbit (Oryctolagus cuniculus) was evaluated because of a 1-day history of signs of anorexia and depression. CLINICAL FINDINGS Clinical examination revealed signs of depression, hunched posture, low skin elasticity (suggesting dehydration), slightly distended abdomen, and penile and preputial edema. The owner reported that the rabbit had been fed a routine diet, received water via a sipper bottle, and was allowed free movement around the home. It had been observed by the owner to bite and chew gypsum-based plaster from the walls of the home...
March 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28181139/cytoprotective-and-anti-apoptotic-role-of-terminalia-arjuna-on-oxalate-injured-renal-epithelial-cells
#11
Amisha Mittal, Simran Tandon, Surender Kumar Singla, Chanderdeep Tandon
Urolithiasis is one of the painful multifactorial disorders caused by metabolic abnormalities influencing the composition of body fluids and urine. The bark of Terminalia arjuna (T. arjuna), very well known in Ayurveda for the treatment of cardiovascular diseases, possesses antioxidant and diuretic activity. The present study was undertaken to investigate the antiurolithiatic efficacy of aqueous extract of bark of T. arjuna on oxalate-induced injury to renal tubular epithelial cells. Madin-Darby canine kidney (MDCK) cells were exposed to 2 mM oxalate for 48 h to evaluate the protective effect of T...
February 8, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28125004/antioxidant-pre-treatment-reduces-the-toxic-effects-of-oxalate-on-renal-epithelial-cells-in-a-cell-culture-model-of-urolithiasis
#12
Tomislav Kizivat, Martina Smolić, Ivana Marić, Maja Tolušić Levak, Robert Smolić, Ines Bilić Čurčić, Lucija Kuna, Ivan Mihaljević, Aleksandar Včev, Sandra Tucak-Zorić
Urolithiasis is characterized by the formation and retention of solid crystals within the urinary tract. Kidney stones are mostly composed of calcium oxalate, which predominantly generates free radicals that are toxic to renal tubular cells. The aim of the study is to explore possible effects of antioxidant pre-treatment on inhibition of oxidative stress. Three cell lines were used as in vitro model of urolithiasis: MDCK I, MDCK II and LLC-PK1. Oxidative stress was induced by exposure of cells to sodium oxalate in concentration of 8 mM...
January 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28123331/prevalence-of-hypercalciuria-and-urinary-calcium-excretion-in-school-aged-children-in-the-province-of-tokat
#13
Ali Gül, Samet Özer, Resul Yılmaz, Ergün Sönmezgöz, Tuba Kasap, Şahin Takçı, Erhan Karaaslan, Yalçın Önder, Rıza Çıtıl, İlknur Bütün, Osman Demir
AIM: Hypercalciuria is an important cause of urinary tract symptoms, and also frequently results in urolithiasis. Urinary calcium excretion varies for geographic areas. We aimed to assess percentiles of urinary calcium excretion and prevalence of hypercalciuria for school-aged children in Tokat (city located in inner northern region of Turkey). MATERIAL AND METHODS: One thousand three hundred seventy-five children aged 6 to 18 years were enrolled in the study. Urine samples were obtained randomly...
December 2016: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28042154/analysis-of-canine-urolith-submissions-to-the-canadian-veterinary-urolith-centre-1998-2014
#14
Doreen M Houston, Heather E Weese, Nick P Vanstone, Andrew E P Moore, J Scott Weese
Understanding urolith trends and risk factors is important for understanding urolithiasis, which is a common problem in dogs. This study evaluated 75 674 canine cystolith submissions to the Canadian Veterinary Urolith Centre between 1998 and 2014. Struvite and calcium oxalate uroliths comprised 80.8% of all uroliths, with calcium oxalate outnumbering struvite. There were significant increases in the proportions of calcium oxalate, mixed and cystine uroliths, and significant decreases in struvite, urate, silica, and calcium phosphate carbonate over the study period...
January 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28005930/nanoparticle-tracking-analysis-for-the-enumeration-and-characterization-of-mineralo-organic-nanoparticles-in-feline-urine
#15
M Mellema, M Stoller, Y Queau, S P Ho, T Chi, J A Larsen, N Passlack, A J Fascetti, C Mohr, J L Westropp
Urinary stone disease, particularly calcium oxalate, is common in both humans and cats. Calcifying nanoparticles (CNP) are spherical nanocrystallite material, and are composed of proteins (fetuin, albumin) and inorganic minerals. CNP are suggested to play a role in a wide array of pathologic mineralization syndromes including urolithiasis. We documented the development of a clinically relevant protocol to assess urinary CNP in 9 healthy cats consuming the same diet in a controlled environment using Nanoparticle Tracking Analysis (NTA®)...
2016: PloS One
https://www.readbyqxmd.com/read/27993822/calcitriol-mediated-hypercalcaemia-with-silicone-granulomas-due-to-cosmetic-injection
#16
Stephen Melnick, Ana Abaroa-Salvatierra, Mrunalini Deshmukh, Arti Patel
We present a case of a 41-year-old woman with medical history significant for urolithiasis presenting to our hospital for psychiatric evaluation due to worsening depression and suicidal ideations for the past 2 weeks. Initial laboratory results show hypercalcaemia of 13.5 mg/mL that led to consulting internal medicine. On further questioning, the patient admitted to cosmetic silicone injections in her buttocks which were causing calcium deposition under her skin, leading to disfigurement of the sacrum and lumbar regions...
December 19, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27974930/oxidative-stress-and-antioxidant-status-in-patients-with-complicated-urolithiasis
#17
E Ceban, P Banov, A Galescu, V Botnari
In recent years, intense efforts have been made to clarify the pathogenesis of urolithiasis, which affects more than 10% of the population of developed countries. Currently, a number of studies have assumed a key role in the pathogenesis of oxalate urolithiasis, which is the most common one that belongs to the active forms of oxygen generated in the kidney, as a result of the activation of free radical oxidation that occurs in the interaction of calcium oxalate crystals with renal tubular epithelial cells. In the current work, oxidant and antioxidant status were assessed in the blood of patients with complicated urolithiasis pre - and post surgery...
July 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27960541/high-frequency-dusting-versus-conventional-holmium-laser-lithotripsy-for-intrarenal-and-ureteral-calculi
#18
Roger Li, David Ruckle, Mohamed Keheila, Jonathan Maldonado, Michelle Lightfoot, Muhannad Alsyouf, Alexander Yeo, Samuel R Abourbih, Gaudencio Olgin, Javier L Arenas, D Duane Baldwin
INTRODUCTION: The efficiency of holmium laser lithotripsy for urolithiasis depends upon several factors, including laser pulse energy and frequency and stone composition and retropulsion. This study investigates the complex interplay between these factors and quantifies lithotripsy efficiency using different laser settings in a benchtop kidney and ureter model. MATERIALS AND METHODS: In vitro caliceal and ex vivo porcine ureteral models were constructed. Calcium oxalate monohydrate stones were fragmented using a 200-μm laser fiber...
March 2017: Journal of Endourology
https://www.readbyqxmd.com/read/27942796/calcium-urolithiasis-course-in-young-stone-formers-is-influenced-by-the-strength-of-family-history-results-from-a-retrospective-study
#19
Angela Guerra, Andrea Ticinesi, Franca Allegri, Antonio Nouvenne, Silvana Pinelli, Fulvio Lauretani, Marcello Maggio, Gianfranco Cervellin, Loris Borghi, Tiziana Meschi
The role of the strength of family history of stones (FHS), i.e., degree of relatives with the disease, on the course of calcium urolithiasis (CU) is not fully understood, particularly in young patients where genetic background has the greatest influence on disease expression. Thus, with a retrospective cross-sectional design, we examined baseline clinical parameters and urinary chemistries of 369 subjects (196 M) with CU and 96 controls (41 M) aged between 15 and 25 at the time of the first visit at our stone clinic...
December 9, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27904915/studies-using-a-porcine-model-what-insights-into-human-calcium-oxalate-stone-formation-mechanisms-has-this-model-facilitated
#20
REVIEW
Kristina L Penniston, Sutchin R Patel, Denise J Schwahn, Stephen Y Nakada
Animal models are useful in the study of many human diseases. Our current understanding of the biological, physiological, and biochemical aspects of hyperoxaluria and calcium oxalate urolithiasis has been greatly informed by studies using animals. Recently, limitations in the extrapolation to humans of research results derived from laboratory rodents have been identified. The use in biomedical research of a variety of organisms, including large animals, is increasingly encouraged. The purpose of this article is to review the use of pigs in biomedical and stone research, to provide a rationale for using pigs in metabolic stone research, and to describe our 8-year experience in developing a porcine platform for studying hyperoxaluria and calcium oxalate urolithiasis...
February 2017: Urolithiasis
keyword
keyword
106753
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"