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Kidney stone analysis

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https://www.readbyqxmd.com/read/28812535/associating-mutations-causing-cystinuria-with-disease-severity-with-the-aim-of-providing-precision-medicine
#1
Henry J Martell, Kathie A Wong, Juan F Martin, Ziyan Kassam, Kay Thomas, Mark N Wass
BACKGROUND: Cystinuria is an inherited disease that results in the formation of cystine stones in the kidney, which can have serious health complications. Two genes (SLC7A9 and SLC3A1) that form an amino acid transporter are known to be responsible for the disease. Variants that cause the disease disrupt amino acid transport across the cell membrane, leading to the build-up of relatively insoluble cystine, resulting in formation of stones. Assessing the effects of each mutation is critical in order to provide tailored treatment options for patients...
August 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28792520/comparison-of-porous-and-nano-zinc-oxide-for-replacing-high-dose-dietary-regular-zinc-oxide-in-weaning-piglets
#2
Lina Long, Jiashun Chen, Yonggang Zhang, Xiao Liang, Hengjia Ni, Bin Zhang, Yulong Yin
The aim of this study was to compare the effect of dietary supplementation with low dose of porous and nano zinc oxide (ZnO) on weaning piglets, and to evaluate the possibility of using them as an alternative to high dose of regular ZnO. Piglets were randomly allocated into four treatment groups fed with four diets: (1) basal diet (NC), (2) NC+ 3000 mg/kg ZnO (PC), (3) NC + 500 mg/kg porous ZnO (HiZ) and (4) NC + 500 mg/kg nano ZnO (ZNP). The result showed that piglets in HiZ group had less diarrhea than ZNP group (P < 0...
2017: PloS One
https://www.readbyqxmd.com/read/28776078/sarna-mediated-activation-of-trpv5-reduces-renal-calcium-oxalate-deposition-in-rat-via-decreasing-urinary-calcium-excretion
#3
Tao Zeng, Xiaolu Duan, Wei Zhu, Yang Liu, Wenqi Wu, Guohua Zeng
Hypercalciuria is a main risk factor for kidney stone  formation. TRPV5 is the gatekeeper protein for mediating calcium transport and reabsorption in the kidney. In the present study, we tested the effect of TRPV5 activation with small activating RNA (saRNA), which could induce gene expression by targeting the promoter of the gene, on ethylene glycol (EG)-induced calcium oxalate (CaOx) crystals formation in rat kidney. Five pairs of RNA activation sequences targeting the promoter of rat TRPV5 were designed and synthesized...
August 3, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28759644/the-influence-of-serum-uric-acid-on-renal-function-in-patients-with-calcium-or-uric-acid-stone-a-population-based-analysis
#4
Yoshimi Tanaka, Shingo Hatakeyama, Toshikazu Tanaka, Hayato Yamamoto, Takuma Narita, Itsuto Hamano, Teppei Matsumoto, Osamu Soma, Teppei Okamoto, Yuki Tobisawa, Tohru Yoneyama, Takahiro Yoneyama, Yasuhiro Hashimoto, Takuya Koie, Ippei Takahashi, Shigeyuki Nakaji, Yuriko Terayama, Tomihisa Funyu, Chikara Ohyama
OBJECTIVES: To determine the influence of serum uric acid (UA) levels on renal impairment in patients with UA stone. MATERIALS AND METHODS: We retrospectively analyzed 463 patients with calcium oxalate and/or calcium phosphate stones (CaOx/CaP), and 139 patients with UA stones. The subjects were divided into the serum UA-high (UA ≥ 7.0 mg/dL) or the UA-low group (UA < 7.0 mg/dL). The control group comprised 3082 community-dwelling individuals that were pair-matched according to age, sex, body mass index, comorbidities, hemoglobin, serum albumin, and serum UA using propensity score matching...
2017: PloS One
https://www.readbyqxmd.com/read/28756355/a-validated-hplc-uv-method-for-the-analysis-of-galloylquinic-acid-derivatives-and-flavonoids-in-copaifera-langsdorffii-leaves
#5
Erick Vicente da Silva Motta, Juliana de Carvalho da Costa, Jairo Kenupp Bastos
Copaifera langsdorffii Desf. (Fabaceae, Caesalpinioideae), popularly known as "copaiba" or "pau d'óleo", is a species of tree that is found throughout Brazil. The leaves of this tree are used in folk medicine to treat kidney stones. Galloylquinic acid derivatives and flavonoids are the main secondary metabolites found in C. langsdorffii leaves and are likely to be responsible for the effectiveness of this treatment. As an attempt to produce a phytotherapic, we have developed a reliable HPLC-UV method for the quality control of C...
July 18, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28754568/quantifying-ischemic-risk-after-percutaneous-coronary-intervention-attributable-to-high-platelet-reactivity-on-clopidogrel-from-the-assessment-of-dual-antiplatelet-therapy-with-drug-eluting-stents-study
#6
Björn Redfors, Ori Ben-Yehuda, Sheng-Hsuan Lin, Ariel Furer, Ajay J Kirtane, Bernhard Witzenbichler, Giora Weisz, Thomas D Stuckey, Akiko Maehara, Philippe Généreux, Gennaro Giustino, Michael J Rinaldi, Franz-Josef Neumann, D Christopher Metzger, Timothy D Henry, David A Cox, Peter L Duffy, Ernest L Mazzaferri, Girma Minalu Ayele, Roxana Mehran, Gary S Mintz, Gregg W Stone
Patients at high risk of thrombotic events after percutaneous coronary intervention (PCI) may potentially benefit from intensified antiplatelet therapy. However, more potent antiplatelet therapy would be expected to only overcome risk that is mediated by high platelet reactivity (PR). We used mediation analysis to determine the contribution of residual PR to the 2-year risk of major adverse cardiac events (MACE; the composite of cardiac death, myocardial infarction, or stent thrombosis) associated with clinical risk factors after PCI with drug-eluting stents (DES) in 8,374 patients from the prospective, multicenter Assessment of Dual AntiPlatelet Therapy with Drug-Eluting Stents (ADAPT-DES) registry...
June 28, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28727384/a-neural-network-based-algorithm-for-predicting-stone-free-status-after-eswl-therapy
#7
Ilker Seckiner, Serap Seckiner, Haluk Sen, Omer Bayrak, Kazim Dogan, Sakip Erturhan
OBJECTIVE: The prototype artificial neural network (ANN) model was developed using data from patients with renal stone, in order to predict stone-free status and to help in planning treatment with Extracorporeal Shock Wave Lithotripsy (ESWL) for kidney stones. MATERIALS AND METHODS: Data were collected from the 203 patients including gender, single or multiple nature of the stone, location of the stone, infundibulopelvic angle primary or secondary nature of the stone, status of hydronephrosis, stone size after ESWL, age, size, skin to stone distance, stone density and creatinine, for eleven variables...
July 20, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28721286/open-stone-surgery-a-still-in-use-approach-for-complex-stone-burden
#8
Özer Ural Çakici, Kemal Ener, Murat Keske, Serkan Altinova, Abdullah Erdem Canda, Mustafa Aldemir, Arslan Ardicoglu
INTRODUCTION: Urinary stone disease is a major urological condition. Endourologic techniques have influenced the clinical approach and outcomes. Open surgery holds a historic importance in the management of most conditions. However, complex kidney stone burden may be amenable to successful results with open stone surgery. In this article, we report our eighteen cases of complex urinary stone disease who underwent open stone removal. MATERIAL AND METHODS: A total of 1701 patients have undergone surgical treatment for urinary stone disease in our clinic between July 2012 and July 2016, comprising eighteen patients who underwent open stone surgery...
June 30, 2017: Central European Journal of Urology
https://www.readbyqxmd.com/read/28720371/genetic-risk-factors-for-idiopathic-urolithiasis-a-systematic-review-of-the-literature-and-causal-network-analysis
#9
REVIEW
Kazumi Taguchi, Takahiro Yasui, Dawn Schmautz Milliner, Bernd Hoppe, Thomas Chi
CONTEXT: Urolithiasis has a high prevalence and recurrence rate. Prevention is key to patient management, but risk stratification is challenging. In particular, genetic predisposition for urinary stones is not fully understood. OBJECTIVE: To review current evidence of potential causative genes for idiopathic urolithiasis and map their relationships to one another. This evidence is essential for future establishment of molecular targeted therapy. EVIDENCE ACQUISITION: A systematic literature review from 2007 to 2017 was performed in accordance with the Preferred Reporting Items for Systematic Review and Meta-analyses guidelines...
February 2017: European Urology Focus
https://www.readbyqxmd.com/read/28720366/the-evolving-role-of-retrograde-intrarenal-surgery-in-the-treatment-of-urolithiasis
#10
REVIEW
Francesco Sanguedolce, Giorgio Bozzini, Ben Chew, Panagiotis Kallidonis, Jean de la Rosette
CONTEXT: Retrograde intrarenal surgery has gained substantial popularity worldwide thanks to continuous improvements in technology and techniques, and is now considered one of the first-line treatment options for active removal of renal stones. OBJECTIVE: To provide a comprehensive synthesis of the main evidences in literature on the current management of kidney stones by means of retrograde intrarenal surgery (RIRS). EVIDENCE ACQUISITION: A review of literature has been conducted using search string "retrograde intrarenal surgery OR flexible ureteroscop* OR ureterorenoscop*", without any language restriction; PubMed, Embase, and Scopus databases were searched in November 2016...
February 2017: European Urology Focus
https://www.readbyqxmd.com/read/28720357/clinical-case-discussion-kidney-stone-in-a-patient-with-an-ileal-conduit
#11
R Jeroen A van Moorselaar, Jakko A Nieuwenhuijzen
A patient underwent robot-assisted laparoscopic cystectomy with an ileal conduit urinary diversion. Percutaneous nephrolithotomy was performed for treatment of a kidney stone. Stone analysis revealed struvite.
February 2017: European Urology Focus
https://www.readbyqxmd.com/read/28719978/optimizing-rna-extraction-of-renal-papilla-biopsy-tissue-in-kidney-stone-formers-a-new-methodology-for-genomic-study
#12
Kazumi Taguchi, Manint Usawachintachit, Shuzo Hamamoto, Rei Unno, David T Tzou, Benjamin Sherer, Yongmei Wang, Atsushi Okada, Marshall Stoller, Takahiro Yasui, Thomas Chi
INTRODUCTION: Endoscopic tools have provided versatile examination and treatment for kidney stone procedures. Despite endourologists researching urinary stone disease using endoscopes to collect tissue, this tissue collection method is limited. Endoscopically removed tissues are small in size, restricting the types of genome-based examination possible. We investigated a new method of renal papilla biopsy and RNA extraction to establish a genomic research methodology for kidney stone disease...
July 18, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28711370/assessing-the-risk-of-hypercalcemic-crisis-in-patients-with-primary-hyperparathyroidism
#13
Andrew J Lowell, Norah M Bushman, Xing Wang, Yue Ma, Susan C Pitt, Rebecca S Sippel, David F Schneider, Reese W Randle
BACKGROUND: Hypercalcemic crisis (HC) is a potentially life-threatening manifestation of primary hyperparathyroidism (PHPT). This study aimed to identify patients with PHPT at greatest risk for developing HC. METHODS: This retrospective cohort study included patients with a preoperative calcium of at least 12 mg/dL undergoing initial parathyroidectomy for PHPT from 11/2000 to 03/2016. We compared those with HC, defined as needing hospitalization for hypercalcemia, to those without HC...
July 12, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28704268/safe-discharge-and-outpatient-investigation-of-ureteric-colic-a-retrospective-analysis
#14
Michael Stewart
BACKGROUND: Computed tomography of the kidneys, ureters and bladder is the recommended imaging modality for suspected urolithiasis. Early scanning is advised in guidelines, but there is limited published evidence to support this recommendation. PATIENTS AND METHODS: In a retrospective study, we reviewed patients managed according to a local guideline. Patients without high-risk features were either imaged during their initial visit (if in the daytime) or discharged for outpatient scans...
July 12, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/28660284/primary-hyperoxaluria-in-populations-of-pakistan-origin-results-from-a-literature-review-and-two-major-registries
#15
REVIEW
Jamsheer Jehangir Talati, Sally-Anne Hulton, Sander F Garrelfs, Wajahat Aziz, Shoaib Rao, Amanullah Memon, Zafar Nazir, Raziuddin Biyabani, Saqib Qazi, Iqbal Azam, Aysha Habib Khan, Jamil Ahmed, Lena Jafri, Mohammad Zeeshan
Primary hyperoxalurias (PH) are devastating, autosomal recessive diseases causing renal stones. Undifferentiated hyperoxaluria is seen in up to 43% of Pakistani paediatric stone patients. High rates of consanguinity in Pakistan suggest significant local prevalence. There is no detailed information regarding number of cases, clinical features, and genetics in Pakistan-origin (P-o) patients. We reviewed available information on P-o PH patients recorded in the literature as well as from two major PH registries (the Rare Kidney Stone Consortium PH Registry (RKSCPHR) and the OxalEurope PH Registry (OxER); and the Aga Khan University Hospital in Pakistan...
June 28, 2017: Urolithiasis
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
#16
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/28653521/-egg-shaped-macro-lithiasis
#17
T Richard, C Hauzeur, M Vanhaeverbeek
We report a 76 years-old female patient who consults for left flank pain and inflammatory biology, due to the presence of an egg-shaped 5 cm diameter macro-lithiasis. Because of the presence of a Proteus bacteriuria, the patient receives a 7 days levofloxacin treatment, before a laparoscopic resection of the kidney stone is performed. The analysis reveals a struvite lithiasis with a disorganized radial-section nuclear structure (type IVc).
2017: Revue Médicale de Bruxelles
https://www.readbyqxmd.com/read/28652122/predictors-of-hospital-admission-and-urologic-intervention-in-adult-emergency-department-patients-with-ct-confirmed-ureteral-stones
#18
Brock Daniels, Elizabeth Schoenfeld, Andrew Taylor, Karrin Weisenthal, Dinesh Singh, Christopher L Moore
PURPOSE: Over one million patients seek care in an Emergency Department (ED) for kidney stones annually, but a minority require admission or urologic procedure. We aim to describe predictors of hospital admission or urologic intervention. MATERIALS AND METHODS: This secondary analysis of prospective data includes ED patients with CT-confirmed obstructing ureteral stone. All patients also received a point-of-care limited renal ultrasound (PLUS). Need for urologic intervention at 90 days was assessed by follow-up interview...
June 23, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28627733/response-of-renal-tubular-cells-to-differential-types-and-doses-of-calcium-oxalate-crystals-integrative-proteome-network-analysis-and-functional-investigations
#19
Arada Vinaiphat, Siripat Aluksanasuwan, Juthatip Manissorn, Suchitra Sutthimethakorn, Visith Thongboonkerd
We have previously identified changes in the cellular proteome of renal tubular cells induced by low-dose (100 μg/ml) and high-dose (1,000 μg/ml) calcium oxalate monohydrate (COM) and dihydrate (COD) crystals. However, the functional significance of such expression data remained unclear. In this study, we performed comparative analyses and functional investigations of four proteomic datasets to define potential mechanisms by which renal tubular cells responded to differential crystal types and doses. The data showed that high-dose induced greater changes than low-dose, whereas COM induced more changes than COD...
June 19, 2017: Proteomics
https://www.readbyqxmd.com/read/28616648/protective-effect-of-dietary-polyphenol-caffeic-acid-on-ethylene-glycol-induced-kidney-stones-in-rats
#20
Fauzia Yasir, Atia-Tul- Wahab, M Iqbal Choudhary
Dietary polyphenol caffeic acid (1) has been reported for various pharmacological activities. The aim of the current study was to investigate the effect of caffeic acid (1) on ethylene glycol-induced renal stones in rats. For the study, male Wistar rats were divided into seven groups; normal, pathological, and standard drug controls, and preventive and curative groups. Normal control group received drinking water for 8 weeks. Pathological, standard drug, preventive, and curative groups received 0.75% ethylene glycol in drinking water for the induction of calcium oxalate stone formation, along with the regular diet...
June 14, 2017: Urolithiasis
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