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https://www.readbyqxmd.com/read/28098121/perspectives-on-hypertension-outcomes-after-single-stage-clearance-of-a-complete-staghorn-renal-calculus
#1
Ranjit Chaudhary, Kulwant Singh, Chirag S Dausage, Nidhi Jain
A 55-year-old male presented, in June 2013, with left flank pain. Investigations revealed a complete staghorn stone. He had undergone two sittings of extracorporeal shock wave lithotripsy (ESWL) in 2008 for left renal stone. One year subsequent to this, he was diagnosed with hypertension and diabetes. The management of complete staghorn stones in a single sitting is a difficult proposition. Percutaneous nephrolithotomy (PCNL) is the gold standard to manage such stones. The patient was subjected to PCNL, and complete clearance was achieved in one sitting...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28098100/impact-of-residual-renal-function-on-clinical-outcome-and-quality-of-life-in-patients-on-peritoneal-dialysis
#2
Manns Manohar John, Amit Gupta, Raj K Sharma, Anupama Kaul
We studied the impact of residual renal function (RRF) on clinical outcome and quality of life in 61 patients on peritoneal dialysis (PD). They were assigned to two groups, at the time of initiation of PD, based on their estimated glomerular filtration rate (eGFR). The high RRF group had eGFR ≥5 mL/min/1.73 m[2] and the low RRF group hade GFR <5 mL/min/1.73 m[2]. All patients were followed up at regular intervals for clinical and biochemical variables. Baselines characteristics including age, sex, body mass index and cause of the kidney disease were similar in both groups...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28097805/complement-polymorphisms-in-kidney-transplantation-critical-in-graft-rejection
#3
L A Michielsen, A D van Zuilen, I S Muskens, M C Verhaar, H G Otten
The complement system, as part of the innate immune system, plays an important role in renal transplantation. Complement is involved in the protection against foreign organisms and clearance of apoptotic cells but can also cause injury to the renal allograft for instance via antibody binding or in ischemia reperfusion injury. Numerous polymorphisms in complement factors have been identified thus far; some of them result in different functionalities or alter complement levels. In this review, we provide an overview of the literature on the role of complement polymorphisms in renal transplantation...
January 17, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28097508/preparation-and-evaluation-of-biopolymeric-nanoparticles-as-drug-delivery-system-in-effective-treatment-of-rheumatoid-arthritis
#4
Vijay Kumar, Ankita Leekha, Aakriti Tyagi, Ankur Kaul, Anil Kumar Mishra, Anita Kamra Verma
PURPOSE: The study purposes to evaluate nanocrystalline biopolymeric nanoparticles encapsulating methotrexate and dexamethasone with high biocompatibility, enhanced therapeutic efficacy and reduced toxicity. METHODS: Chitosan nanoparticles were prepared by ionic gelation, and Methotrexate (MTX) and Dexamethasone (DEX) were loaded during the preparation and screened for their in vitro efficacy in HEK and RAW264.7 cells, ex vivo and in vivo efficacy. RESULTS: FTIR confirmed the involvement of phosphoric group of sTPP with amine groups of chitosan and also role of hydrogen bonding involved in the preparation of MTXCHNP and DEXCHNP...
January 17, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28097080/immunoglobulin-m-nephropathy-in-a-patient-with-wilson-s-disease
#5
Zain Ul Abideen, Zoya Sajjad, Asna Haroon Khan, Nadira Mamoon, Muhammad Bilal, Khaja Hameeduddin Mujtaba Quadri
Immunoglobulin M nephropathy (IgMN) is characterized by the deposition of immunoglobulin M in a dominant distribution in the renal glomeruli. Primary immunoglobulin M nephropathy is diagnosed after consistent light microscopy (LM), immunofluorescence (IF), electron microscopy (EM) results, and exclusion of known systemic disorders causing immunoglobulin M deposition in the glomeruli. The secondary disease has been reported with a few conditions though it has never been reported with any primary disease of the liver...
December 13, 2016: Curēus
https://www.readbyqxmd.com/read/28095793/genetic-variation-underlying-renal-uric-acid-excretion-in-hispanic-children-the-viva-la-familia-study
#6
Geetha Chittoor, Karin Haack, Nitesh R Mehta, Sandra Laston, Shelley A Cole, Anthony G Comuzzie, Nancy F Butte, V Saroja Voruganti
BACKGROUND: Reduced renal excretion of uric acid plays a significant role in the development of hyperuricemia and gout in adults. Hyperuricemia has been associated with chronic kidney disease and cardiovascular disease in children and adults. There are limited genome-wide association studies associating genetic polymorphisms with renal urate excretion measures. Therefore, we investigated the genetic factors that influence the excretion of uric acid and related indices in 768 Hispanic children of the Viva La Familia Study...
January 17, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28094956/radiolabeled-r954-derivatives-for-imaging-bradykinin-b1-receptor-expression-with-positron-emission-tomography
#7
Hsiou-Ting Kuo, Jinhe Pan, Joseph Lau, Chengcheng Zhang, Jutta Zeisler, Nadine Colpo, Francois Benard, Kuo-Shyan Lin
Peptide receptors have emerged as promising targets for diagnosis and therapy. The aberrant overexpression of these receptors in different cancer subtypes allows for the adoption of new treatment strategies that complement conventional chemotherapies. Bradykinin B1 receptor (B1R) is a G protein-coupled receptor that is overexpressed in many cancers, with limited expression in healthy tissues. Previously, we developed 68Ga- and 18F-labeled derivatives of B1R antagonist peptides B9858 and B9958, and successfully targeted B1R-expressing tumor xenografts in vivo...
January 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28093773/establishment-of-a-cell-line-for-assessing-drugs-as-canine-p-glycoprotein-substrates-proof-of-principle
#8
K L Mealey, S Dassanayake, N S Burke
P-glycoprotein (P-gp), encoded by the ABCB1 (MDR1) gene, dramatically impacts drug disposition. P-gp is expressed in the intestines, biliary canaliculi, renal tubules, and brain capillaries where it functions to efflux substrate drugs. In this capacity, P-gp restricts oral absorption, enhances biliary and renal excretion, and inhibits central nervous system entry of substrate drugs. Many drugs commonly used in veterinary medicine are known substrates for canine P-gp (vincristine, loperamide, ivermectin, others)...
January 17, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28090764/incremental-and-infrequent-hemodialysis-a-new-paradigm-for-both-dialysis-initiation-and-conservative-management
#9
Connie M Rhee, Mehrdad Ghahremani-Ghajar, Yoshitsugu Obi, Kamyar Kalantar-Zadeh
Registry or national dialysis data show that a sizeable proportion of contemporary dialysis patients have substantial levels of residual kidney function especially upon transitioning to dialysis therapy. However, among incident hemodialysis patients, the prevailing paradigm has been to initiate "full-dose" thrice-weekly treatment schedules irrespective of native kidney function in most developed countries. Recognizing the benefits of residual kidney function upon the health and survival of dialysis patients, there has been growing interest in incremental hemodialysis, in which dialysis frequency and dose are tailored according to the degree of patients' residual kidney function...
January 13, 2017: Panminerva Medica
https://www.readbyqxmd.com/read/28088445/synthesis-and-exploration-of-novel-radiolabeled-bombesin-peptides-for-targeting-receptor-positive-tumor
#10
Kakali De, Indranil Banerjee, Samarendu Sinha, Shantanu Ganguly
Increasing evidence of peptide receptor overexpression in various cancer cells, warrant the development of receptor specific radiolabeled peptides for molecular imaging and therapy in nuclear medicine. Gastrin-releasing-peptide (GRP) receptor, are overexpressed in a variety of human cancer cells. The present study report the synthesis and biological evaluation of new bombesin (BBN) analogs, HYNIC-Asp-[Phe(13)]BBN(7-13)-NH-CH2-CH2-CH3:BA1, HYNIC-Pro-[Tyr(13)Met(14)]BBN(7-14)NH2:BA2 as prospective tumor imaging agent with compare to BBN(7-14)NH2:BS as standard...
January 11, 2017: Peptides
https://www.readbyqxmd.com/read/28078448/synergic-impact-of-oral-anticoagulation-control-and-renal-function-in-determining-major-adverse-events-in-atrial-fibrillation-patients-undergoing-percutaneous-coronary-intervention-insights-from-the-afcas-registry
#11
Marco Proietti, K E Juhani Airaksinen, Andrea Rubboli, Axel Schlitt, Tuomas Kiviniemi, Pasi P Karjalainen, Gregory Y H Lip
BACKGROUND: In patients with atrial fibrillation (AF), quality of oral anticoagulation control as well as impaired renal function are associated with adverse outcomes. Our objective was to analyze if there was a synergistic impact of these factors in determining adverse outcomes in AF patients undergoing percutaneous coronary intervention and stent (PCI-S). METHODS: Post-hoc analysis from the Atrial Fibrillation Undergoing Coronary Artery Stenting (AFCAS) registry...
January 11, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28077373/determination-of-renal-function-and-injury-using-near-infrared-fluorimetry-in-experimental-cardiorenal-syndrome
#12
Mizuko Ikeda, Rumie Wakasaki, Katie J Schenning, Thomas Swide, Jeong Heon Lee, M Bernie Miller, Hak Soo Choi, Sharon Anderson, Michael P Hutchens
Cardiorenal syndrome type 1 causes acute kidney injury but is poorly understood; animal models and diagnostic aids are lacking. Robust noninvasive measurements of glomerular filtration rate are required for injury models and clinical use. Several have been described but are untested in translational models and suffer from biologic interference. We developed a mouse model of cardiorenal syndrome and tested the novel near-infrared fluorophore, ZW800-1, to assess renal and cardiac function. We performed murine cardiac arrest and cardiopulmonary resuscitation followed by transthoracic echocardiography, 2- and 24h later...
January 11, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28074703/early-surgery-after-angiography-in-patients-scheduled-for-valve-replacement
#13
Victor Dayan, Roberto Stanham, Gerardo Soca, Fernando Genta, Jorge Mariño, Alvaro Lorenzo
Background There are limited data regarding the risks of cardiac surgery early after coronary angiography in patients scheduled for isolated aortic and/or mitral valve replacement. Our aim was to evaluate the risk of early surgery after coronary angiography in these patients. Methods We retrospectively analyzed data of 1044 patients who underwent isolated aortic and/or mitral valve replacement from 2006 to 2014. Baseline, operative, and postoperative variables were collected. The patients were divided into 3 groups based on the interval between coronary angiography and surgery: ≤3 days ( n = 216), 4-7 days ( n = 109), and ≥8 days ( n = 719)...
January 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28074547/a-pharmacokinetic-and-safety-study-of-trebananib-a-fc-fusion-peptibody-in-patients-with-advanced-solid-tumors-and-varying-degrees-of-renal-dysfunction
#14
Benjamin Wu, Lionel D Lewis, R Donald Harvey, Erik Rasmussen, Erick Gamelin, Yu-Nien Sun, Gregory Friberg, Jay L Koyner, Afshin Dowlati, Michael L Maitland
Clearance of trebananib (AMG 386), a 64 kD anti-angiogenic peptibody, has been associated with estimated glomerular filtration rate (eGFR). We prospectively evaluated trebananib pharmacokinetics and safety/tolerability in advanced solid tumor patients with varying degrees of renal function. Patients were assigned to normal renal function, mild, moderate, or severe renal dysfunction cohorts based on eGFR, received trebananib 15 mg/kg IV weekly, and underwent week 1 and week 5 pharmacokinetic and weekly safety assessments...
January 11, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28073690/citrate-pathophysiology-and-metabolism
#15
REVIEW
Mehran Monchi
By chelating ionized calcium, citrate allows extracorporeal circuit anticoagulation without a bleeding risk for the patient. Citrate anticoagulation is also associated with a reduced activation of leucocytes and platelets. Citrate clearance by citric acid cycle (Krebs cycle) is not modified by renal failure, but is reduced by about 50% in patients with cirrhosis. Toxic effects of citrate result from a decrease in plasma ionized calcium of the patient. The first side effect is a prolongation of the QT interval...
December 30, 2016: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28070988/renal-clearable-noble-metal-nanoparticles-photoluminescence-elimination-and-biomedical-applications
#16
REVIEW
Jing Xu, Chuanqi Peng, Mengxiao Yu, Jie Zheng
Metal nanoparticles have demonstrated broad and promising biomedical applications in research laboratories, but how to fulfill their promises in the clinical practices demands extensive effort to minimize their non-specific accumulation in the body. In the past 6 years, we have developed a class of renal clearable noble metal nanoparticles with tunable visible and near-infrared emission, which can behave like small molecular contrast agents to be effectively eliminated through the kidneys. By taking advantage of the unique clearance pathway, we were able to gain some fundamental understanding of how engineering nanoparticles cleared out of the body through urinary system...
January 10, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28070716/pharmacokinetics-and-saturable-absorption-of-gabapentin-in-nursing-home-elderly-patients
#17
Ghada F Ahmed, Sai Praneeth R Bathena, Richard C Brundage, Ilo E Leppik, Jeannine M Conway, Janice B Schwartz, Angela K Birnbaum
Pharmacokinetic data of gabapentin (GBP) in community-dwelling elderly patients show a significant effect of advanced age on GBP pharmacokinetics due to altered renal function. However, there are no data in elderly nursing home (NH) patients to evaluate gabapentin absorption and elimination. Our objective was to characterize the pharmacokinetics of GBP in elderly nursing home patients maintained on GBP therapy. This was a prospective pharmacokinetic study in elderly nursing home patients (≥60 years) receiving GBP for the management of chronic pain or epilepsy from seven nursing homes...
January 9, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28069720/pregnancy-increases-the-renal-secretion-of-n1-methylnicotinamide-an-endogenous-probe-for-renal-cation-transporters-in-patients-prescribed-metformin
#18
Mackenzie C Bergagnini-Kolev, Mary F Hebert, Thomas R Easterling, Yvonne S Lin
N1-methylnicotinamide (1-NMN) has been investigated as an endogenous probe for the renal transporter activity of organic cation transporter 2 (OCT2) and multidrug and toxin extrusion proteins 1 and 2-K (MATE1 and MATE2-K). As pregnancy increased the renal secretion of metformin, a substrate for OCT2, MATE1 and MATE2-K, we hypothesized that the renal secretion of 1-NMN would be similarly affected. Blood and urine samples collected from women prescribed metformin for type 2 diabetes, gestational diabetes and polycystic ovarian syndrome (PCOS) during early-, mid-, and late-pregnancy (n = 34 visits) and postpartum (n=14 visits) were analyzed for 1-NMN using liquid chromatography-mass spectrometry...
January 9, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28067754/moderate-renal-failure-accentuates-t1-signal-enhancement-in-the-deep-cerebellar-nuclei-of-gadodiamide-treated-rats
#19
Marlène Rasschaert, Jean-Marc Idée, Philippe Robert, Nathalie Fretellier, Véronique Vives, Xavier Violas, Sébastien Ballet, Claire Corot
OBJECTIVES: The purpose of this preclinical study was to investigate whether moderate chronic kidney disease is a factor in potentiating gadolinium (Gd) uptake in the brain. MATERIALS AND METHODS: A comparative study was performed on renally impaired (subtotal nephrectomy) rats versus rats with normal renal function. The animals received 4 daily injections of 0.6 mmol Gd/kg a week for 5 weeks (cumulative dose of 12 mmol Gd/kg) of gadodiamide or saline solution. The MR signal enhancement in the deep cerebellar nuclei was monitored by weekly magnetic resonance imaging examinations...
November 28, 2016: Investigative Radiology
https://www.readbyqxmd.com/read/28064503/the-label-matters-%C3%AE-pet-imaging-of-the-biodistribution-of-low-molar-mass-89-zr-and-18-f-labeled-poly-2-ethyl-2-oxazoline
#20
Mathias Glassner, Luca Palmieri, Bryn D Monnery, Thomas Verbrugghen, Steven Deleye, Sigrid Stroobants, Steven Staelens, Leonie Wyffels, Richard Hoogenboom
Poly(2-alkyl-2-oxazoline)s (PAOx) have received increasing interest for biomedical applications. Therefore, it is of fundamental importance to gain an in-depth understanding of the biodistribution profile of PAOx. We report the biodistribution of poly(2-ethyl-2-oxazoline) (PEtOx) with a molar mass of 5 kDa radiolabeled with PET isotopes (89)Zr and (18)F. (18)F-labeled PEtOx is prepared by the strain-promoted azide-alkyne cycloaddition (SPAAC) of [(18)F]fluoroethylazide to bicyclo[6.1.0]non-4-yne (BCN)-functionalized PEtOx as many common labeling strategies were found to be unsuccessful for PEtOx...
January 9, 2017: Biomacromolecules
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