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Kidney stone analysis

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https://www.readbyqxmd.com/read/28480348/antiurolithic-effect-of-olive-oil-in-a-mouse-model-of-ethylene-glycol-induced-urolithiasis
#1
Mohammed Alenzi, Shaik Rahiman, Bilal Ahmad Tantry
PURPOSE: At present, commercially available antiurolithic drugs have more adverse effects than potential therapeutic or preventive effects with chronic use. With this in mind, the present study was designed to assess the antiurolithic effect of olive oil in a mouse model of ethylene glycol (EG)-induced urolithiasis. MATERIALS AND METHODS: Adult albino mice were divided into 6 groups. Group I was fed the vehicle only. Group II was supplemented with 0.75% EG alone in drinking water during the experimental period to initiate deposition of calcium oxalate in kidneys, which leads to urolithiasis in animals...
May 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28460910/organic-acids-in-kakadu-plum-terminalia-ferdinandiana-the-good-ellagic-the-bad-oxalic-and-the-uncertain-ascorbic
#2
David J Williams, David Edwards, Sharon Pun, Mridusmita Chaliha, Brian Burren, Ujang Tinggi, Yasmina Sultanbawa
The phenolic ellagic acid (EA) is receiving increasing attention for its nutritional and pharmacological potential as an antioxidant and antimicrobial agent. The Australian native Kakadu plum (Terminalia ferdinandiana) fruit is an abundant source of this phytochemical. The fruit also contains large amounts of vitamin C (mainly as ascorbic acid, AA) and possibly the undesirable oxalic acid (OA). Regular consumption of high oxalate foods poses a variety of health risks in humans including interference with calcium absorption and kidney stone formation...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28435134/association-of-calcitonin-receptor-gene-calcr-polymorphism-with-kidney-stone-disease-in-the-population-of-west-bengal-india
#3
Pubali Mitra, Manalee Guha, Sudakshina Ghosh, Sourav Mukherjee, Biswabandhu Bankura, Dilip Kumar Pal, Biswanath Maity, Madhusudan Das
Kidney Stone Disease (KSD) is a complex urologic disorder with strong genetic constituent. Earlier association studies have indicated that the genetic polymorphisms are the potential cause of stone materialization; however unfortunately, the actual genetic signature is still unknown. Therefore, present study was aimed to investigate the potential contribution of two important polymorphisms of calcitonin receptor gene (CALCR): (i) rs1801197 (Leu447Pro) and (ii) rs1042138 (3'UTR+18C>T) in renal stone formation...
April 20, 2017: Gene
https://www.readbyqxmd.com/read/28416732/prevalence-of-kidney-stones-and-associated-risk-factors-in-the-shunyi-district-of-beijing
#4
Y G Jiang, L H He, G T Luo, X D Zhang
INTRODUCTION: Kidney stone formation is a multifactorial condition that involves interaction of environmental and genetic factors. Presence of kidney stones is strongly related to other diseases, which may result in a heavy economic and social burden. Clinical data on the prevalence and influencing factors in kidney stone disease in the north of China are scarce. In this study, we explored the prevalence of kidney stone and potentially associated risk factors in the Shunyi District of Beijing, China...
April 18, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28412009/shockwave-lithotripsy-with-music-less-painful-and-more-satisfactory-treatment
#5
D G Ordaz Jurado, A Budia Alba, P Bahilo Mateu, M Trassierra Villa, D López-Acón, F Boronat Tormo
INTRODUCTION: The objective of this study was to determine whether listening to music during a session of extracorporeal shockwave lithotripsy (ESWL) improves patients' pain. MATERIAL AND METHOD: A simple, blind randomisation was undertaken of patients with kidney and ureter stones attending an ESWL session of 7,000 waves for the first time, between September and December 2014. One group was given music and the other was not. The age, gender, location of stones (kidney/ureter) were recorded and 2questionnaires: pre ESWL (questionnaire A) and postESWL (questionnaire B)...
April 12, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28392615/ultra-high-spatial-resolution-multi-energy-ct-using-photon-counting-detector-technology
#6
S Leng, R Gutjahr, A Ferrero, S Kappler, A Henning, A Halaweish, W Zhou, J Montoya, C McCollough
Two ultra-high-resolution (UHR) imaging modes, each with two energy thresholds, were implemented on a research, whole-body photon-counting-detector (PCD) CT scanner, referred to as sharp and UHR, respectively. The UHR mode has a pixel size of 0.25 mm at iso-center for both energy thresholds, with a collimation of 32 × 0.25 mm. The sharp mode has a 0.25 mm pixel for the low-energy threshold and 0.5 mm for the high-energy threshold, with a collimation of 48 × 0.25 mm. Kidney stones with mixed mineral composition and lung nodules with different shapes were scanned using both modes, and with the standard imaging mode, referred to as macro mode (0...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28389482/what-are-the-risks-and-benefits-of-temporarily-discontinuing-medications-to-prevent-acute-kidney-injury-a-systematic-review-and-meta-analysis
#7
Penny Whiting, Andrew Morden, Laurie A Tomlinson, Fergus Caskey, Thomas Blakeman, Charles Tomson, Tracey Stone, Alison Richards, Jelena Savović, Jeremy Horwood
OBJECTIVES: To summarise evidence on temporary discontinuation of medications to prevent acute kidney injury (AKI). DESIGN: Systematic review and meta-analysis of randomised and non-randomised studies. PARTICIPANTS: Adults taking diuretics, ACE inhibitors (ACEI), angiotensin receptor blockers (ARB), direct renin inhibitors, non-steroidal anti-inflammatories, metformin or sulfonylureas, experiencing intercurrent illnesses, radiological or surgical procedures...
April 7, 2017: BMJ Open
https://www.readbyqxmd.com/read/28376750/clinical-relevance-of-aortic-calcification-in-urolithiasis-patients
#8
Toshikazu Tanaka, Shingo Hatakeyama, Hayato Yamamoto, Takuma Narita, Itsuto Hamano, Teppei Matsumoto, Osamu Soma, Yuki Tobisawa, Tohru Yoneyama, Takahiro Yoneyama, Yasuhiro Hashimoto, Takuya Koie, Ippei Takahashi, Shigeyuki Nakaji, Yuriko Terayama, Tomihisa Funyu, Chikara Ohyama
BACKGROUND: The aim of the present study is to investigate the clinical relevance of aortic calcification in urolithiasis patients. METHODS: Between January 2010 and September 2014, 1221 patients with urolithiasis were treated in Oyokyo Kidney Research Institute and Hirosaki University Hospital. Among these, 287 patients (Stone group) on whom adequate data were available were included in this retrospective study. We also selected 148 subjects with early stage (pT1N0M0) renal cell carcinoma from 607 renal cell carcinoma patients who underwent radical nephrectomy at Hirosaki University Hospital (Non-stone group) as control subjects...
April 4, 2017: BMC Urology
https://www.readbyqxmd.com/read/28340540/use-of-the-moses-technology-to-improve-holmium-laser-lithotripsy-outcomes-a-preclinical-study
#9
Mostafa M Elhilali, Shadie Badaan, Ahmed Ibrahim, Sero Andonian
OBJECTIVE: To evaluate in vitro and in vivo effects of Moses technology in Holmium laser and to compare it with the Regular mode in terms of lithotripsy efficiency and laser-tissue interactions. METHODS: The Lumenis(®) Pulse™ P120H holmium laser system together with Moses D/F/L fibers were used to compare the Regular mode with the Moses modes in stone retropulsion by using a high-speed camera, and stone ablation efficiency. In addition, a porcine ureteroscopy model was used to assess stone fragmentation and dusting as well as laser-tissue interaction with the ureteral wall...
April 25, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28331214/antihypertensive-medications-and-the-risk-of-kidney-stones-in-older-adults-a-retrospective-cohort-study
#10
R Todd Alexander, Eric McArthur, Racquel Jandoc, Blayne Welk, Jade S Hayward, Arsh K Jain, Branko Braam, Veit Flockerzi, Amit X Garg, Robert Ross Quinn
Antihypertensives are widely prescribed and could influence kidney stone risk by altering urinary calcium excretion. However, the impact of different classes of antihypertensives on kidney stone risk is unknown. To assess this impact, we conducted a retrospective, population-based cohort study using linked health administrative databases. Individuals aged >65 years who initiated one of the four antihypertensive classes (that is, angiotensin-converting enzyme inhibitors (ACEis)/angiotensin receptor blockers (ARBs), beta-blockers, calcium channel blockers or thiazide diuretics) were included...
March 23, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28322584/editorial-comment-for-jones-et-al
#11
Sara L Best
No abstract text is available yet for this article.
April 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28281312/feasibility-of-single-session-endoscopic-combined-intrarenal-surgery-for-ipsilateral-large-renal-stones-and-retrograde-intrarenal-surgery-for-contralateral-renal-stones-initial-experience
#12
Ohseong Kwon, Juhyun Park, Min Chul Cho, Hwancheol Son, Hyeon Jeong, Sung Yong Cho
OBJECTIVES: To analyze the feasibility of carrying out endoscopic combined intrarenal surgery with supine miniaturized percutaneous nephrolithotomy and retrograde intrarenal surgery for patients with bilateral stones in a single session. METHODS: The records of consecutive patients presenting with bilateral kidney stones who underwent endoscopic combined intrarenal surgery with miniaturized percutaneous nephrolithotomy (15-Fr miniaturized nephroscope) and retrograde intrarenal surgery on one side, and retrograde intrarenal surgery on the contralateral side were prospectively collected and analyzed...
March 9, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28277037/fruit-extract-of-the-medicinal-plant-crataegus-oxyacantha-exerts-genotoxic-and-mutagenic-effects-in-cultured-cells
#13
Ana Paula Oliveira de Quadros, Dania Elisa Christofoletti Mazzeo, Maria Aparecida Marin-Morales, Fábio Ferreira Perazzo, Paulo Cesar Pires Rosa, Edson Luis Maistro
Crataegus oxyacantha, a plant of the Rosaceae family also known "English hawthorn, haw, maybush, or whitethorn," has long been used for medicinal purposes such as digestive disorders, hyperlipidemia, dyspnea, inducing diuresis, and preventing kidney stones. However, the predominant use of this plant has been to treat cardiovascular disorders. Due to a lack of studies on the genotoxicity of C. oxyacantha, this investigation was undertaken to determine whether its fruit extract exerts cytotoxic, genotoxic, or clastogenic/aneugenic effects in leukocytes and HepG2 (liver hepatocellular carcinoma) cultured human cells, or mutagenic effects in TA100 and TA98 strains of Salmonella typhimurium bacterium...
February 17, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28255414/prediction-of-fragmentation-of-kidney-stones-a-statistical-approach-from-ncct-images
#14
Krishna Moorthy, Meenakshy Krishnan
INTRODUCTION: We sought to develop a system to predict the fragmentation of stones using non-contrast computed tomography (NCCT) image analysis of patients with renal stone disease. METHODS: The features corresponding to first order statistical (FOS) method were extracted from the region of interest in the NCCT scan image of patients undergoing extracorporeal shockwave lithotripsy (ESWL) treatment and the breakability was predicted using neural network. RESULTS: When mean was considered as the feature, the results indicated that the model developed for prediction had sensitivity of 80...
July 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28247719/-cystine-as-a-risk-factor-of-the-stone-formation-in-kidney-the-reference-value-range-of-urinary-excretion-the-stage-diagnosis-of-cystine-metabolism-disorder
#15
A A Gres, D M Nitkin, T M Juraha, A A Sivakow
OBJECTIVE: to define the reference value ranges of cystine, lysine and arginine urinary excretion relative to creatinine in the morning urine samples for the metabolic disorders diagnosis leading to the formation of urinary stones. MATERIALS AND METHODS: the study involved 695 healthy individuals aged 1-17 and 1564 patients with urolithiasis aged 7-45. The content of cystine in the urine samples was determined by high performance liquid chromatography. The chemical composition of urinary stones was investigated by methods of the qualitative chemical reaction and the crystals microscopy...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247655/-the-choice-of-surgical-modality-to-treat-patients-with-staghorn-nephrolithiasis
#16
S B Imamverdiyev, T A Talybov
AIM: Improvement in the results of the treatment of patients suffering from staghorn and multiple nephrolithiasis, using open method of surgery and a retrospective analysis of the surgical data. MATERIAL AND METHODS: There was executed asurgical treatment of the 730 patients with staghorn and multiple nephrolithiasis in the period from 1998 to 2012. 480 of the patients had one-sided staghorn stones and 250 of them had double-sided staghorn stones. Age of the patients varied from 4 to 76 years old (average - 49)...
April 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247641/-initial-experience-with-laparoscopic-anatrophic-nephrolithotomy
#17
A D Kochkin, A G Martov, F A Sevryukov, A V Knutov, V P Sergeev
Percutaneous nephrolithotomy is a recognized standard for minimally invasive treatment of large kidney stones. Percutaneous interventions for complete staghorn stones are associated with a higher risk of complications that precludes abandoning the traditional open operations, one of which is an anatrophic nephrolithotomy. This paper presents the first personal experience in laparoscopic transmesenteric anatrophic nephrolithotomy. The intervention was conducted in 3 patients (2 males and 1 female) aged 43 to 58 years, having a primary symptomatic complete left kidney staghorn stones sized from 7...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247628/-choosing-a-method-of-draining-the-upper-urinary-tract-following-percutaneous-nephrolithotripsy
#18
Ju G Alyaev, N A Grigoriev, N I Sorokin, I V Diakonov, S H Ali
PURPOSE: to compare various methods of upper urinary tract drainage in patients with urolithiasis. PATIENTS AND METHODS: 60 patients were included into a prospective study which ran from March 2013 through December 2014. All patients underwent PCNL with a nephrostomy tract diameter of (28-30 Ch.) at the I.M. Sechenov First Moscow State Medical University urology clinic. Patients were divided into 2 groups. Group 1 30 (patients) underwent nephrostomy after PCNL with nephrostomy tract placement, in group 2 (29 patients) internal drainage was performed...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28243978/evaluation-of-in-vitro-and-in-vivo-anti-urolithiatic-activity-of-silver-nanoparticles-containing-aqueous-leaf-extract-of-tragia-involucrata
#19
Vinodhini Velu, Moonjit Das, Arunai Nambi Raj N, Kamal Dua, Himaja Malipeddi
The present investigation is focused on exploring the anti-urolithiatic potential of aqueous leaf extract of Tragia involucrata (TIA) and its silver nanoparticles (AgNPs) and to quantify the total phenol, flavonoid, terpenoid and sterol contents present in TIA. Quantification results suggested TIA to be a rich source of phenol, flavonoid and terpenoid and less of sterol content. The AgNPs were synthesized by a simple green method using aqueous extract of T. involucrata. The formation of AgNPs was confirmed through UV spectroscopy, particle size analysis, zeta potential, X-ray diffraction and transmission electron microscopy...
February 27, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28238670/association-of-pregnancy-with-stone-formation-among-women-in-the-united-states-a-nhanes-analysis-2007-to-2012
#20
Lael Reinstatler, Sari Khaleel, Vernon M Pais
PURPOSE: Lithogenic urinary changes develop during pregnancy. Such changes may increase stone proclivity thereafter in working and child rearing aged women. However, to our knowledge such an association has not been previously identified. MATERIALS AND METHODS: We analyzed nationally representative data from the 2007 to 2012 NHANES (National Health and Nutrition Examination Survey) to assess the association between pregnancy and nephrolithiasis. RESULTS: The weighted national prevalence of nephrolithiasis among women 50 years or younger was 6...
February 24, 2017: Journal of Urology
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