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Creatinine clearance measurement

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https://www.readbyqxmd.com/read/27894116/intrarenal-vascular-resistance-is-associated-with-a-prothrombotic-state-in-hypertensive-patients
#1
Cristiana Catena, GianLuca Colussi, Marileda Novello, Valentina Fagotto, Leonardo A Sechi
BACKGROUND/AIMS: Hypertensive nephroangiosclerosis is associated with progressive increase of intrarenal vascular resistance. In addition to blood pressure, other factors can contribute to hypertensive renal damage including a prothrombotic state. We investigated the relationship between hemostatic markers and intrarenal vascular resistance in hypertension. METHODS: In 115 untreated, nondiabetic, hypertensive subjects free of cardiovascular complications and advanced renal function impairment, we measured 24-hour creatinine clearance (GFR) and urinary albumin excretion (UAE), fasting plasma glucose, HOMA-index, and plasma levels of fibrinogen, D-dimer, prothrombin fragment 1+2, plasminogen activator inhibitor-1, homocysteine, and lipoprotein(a)...
November 29, 2016: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/27890838/preoperative-evaluation-of-the-renal-function-before-the-treatment-of-abdominal-aortic-aneurysms
#2
Raphael Coscas, Sandra Wagner, Eve Vilaine, Albane Sartorius, Isabelle Javerliat, Olivier Goeau-Brissonniere, Marc Coggia, Ziad Massy
OBJECTIVES: Chronic impaired renal function (IRC) constitutes a major risk factor of morbi-mortality during the treatment of an abdominal aortic aneurism (AAA). The inflammatory state due to the AAA could result in a reduction in the muscular mass and an over-estimation of the glomerular filtration rate (GFR) with the usual formulas. The objective of this study was to determine if the formulae used to evaluate the estimated GFR were adapted in patients with AAA. MATERIALS AND METHODS: Between August 2013 and November 2014, we conducted an exploratory study to evaluate the renal function before surgery for AAA in 28 patients...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27884475/frailty-kidney-function-and-polypharmacy-the%C3%A2-atherosclerosis-risk-in-communities-aric-study
#3
Shoshana H Ballew, Yan Chen, Natalie R Daya, Job G Godino, B Gwen Windham, Mara McAdams-DeMarco, Josef Coresh, Elizabeth Selvin, Morgan E Grams
BACKGROUND: Frail individuals are at increased risk for poor outcomes, including adverse drug events. Kidney function is often compromised in frailty and is a key consideration in medication choice and dosing; however, creatinine-based measures of kidney function may be biased in frail individuals. STUDY DESIGN: Observational study. SETTING & PARTICIPANTS: 4,987 community-dwelling older men and women with complete data who participated in visit 5 of the Atherosclerosis Risk in Communities (ARIC) Study (2011-2013)...
November 21, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27878110/discontinuation-of-antimicrobial-prophylaxis-ap-in-children-with-spina-bifida-a-case-series-analysis
#4
Kevin G Couloures, Michael Anderson, Michael Machiorlatti, Olivera Marsenic, Lawrence Opas
BACKGROUND: Spina bifida increases the risk for urinary tract infections (UTI). Antimicrobial prophylaxis (AP) reduces symptomatic UTI's but selects resistant organisms. Measures to ensure regular and complete emptying of the bladder combined with treatment of constipation reduce the risk for UTI. OBJECTIVES: Demonstrate that close adherence to a catheterization regimen in children with spina bifida (Selective Treatment - ST) reduces the need for antimicrobial prophylaxis...
September 2016: Nephro-urology Monthly
https://www.readbyqxmd.com/read/27865605/population-pharmacokinetic-model-of-lithium-and-drug-compliance-assessment
#5
Isabel Pérez-Castelló, Víctor Mangas-Sanjuan, Ignacio González-García, Isabel Gonzalez-Alvarez, Marival Bermejo, Jose Luis Marco-Garbayo, Iñaki F Trocóniz
Population pharmacokinetic analysis of lithium during therapeutic drug monitoring and drug compliance assessment was performed in 54 patients and 246 plasma concentrations levels were included in this study. Patients received several treatment cycles (1-9) and one plasma concentration measurement for each patient was obtained always before starting next cycle (pre-dose) at steady state. Data were analysed using the population approach with NONMEM version 7.2. Lithium measurements were described using a two-compartment model (CL/F=0...
November 16, 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27860407/from-fish-to-nephrology-modeling-glomerular-function-in-danio-rerio-larvae
#6
EDITORIAL
Sebastian Bachmann
The assessment of the glomerular filtration rate (GFR) is essential to judge renal function in clinical practice. Estimated GFR based on serum creatinine concentration is useful as a "first line" test of kidney function, whereas measured GFR using urinary or plasma clearance of exogenously applied markers of filtration provides more accurate information and allows conclusions on the function of the filtration barrier and the tubular reabsorptive capacity (Stevens & Levey 2009). Defects of the glomerular filtration barrier may impair size selectivity and cause proteinuria, leading to chronic kidney disease...
November 17, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/27856262/association-between-renal-function-and-chemotherapy-related-toxicity-in-older-adults-with-cancer
#7
Lindsay L Peterson, Arti Hurria, Tao Feng, Supriya G Mohile, Cynthia Owusu, Heidi D Klepin, Cary P Gross, Stuart M Lichtman, Ajeet Gajra, Ilya Glezerman, Vani Katheria, Laura Zavala, David D Smith, Can-Lan Sun, William P Tew
PURPOSE: To evaluate the association between renal function (RF) and chemotherapy-related toxicity (CRT) in older adults with cancer and to compare the effect of different RF formulas and body weight measurements on this association. METHODS: This is a secondary analysis of data from a prospective multicenter study of patients ≥ age 65 who were starting a new chemotherapy regimen. RF was estimated with 4 formulas (modified Jelliffe [Jelliffe], Cockcroft-Gault [CG], Wright, and Modification of Diet in Renal Disease [MDRD]), using actual, ideal and adjusted body weights for 492 patients...
November 14, 2016: Journal of Geriatric Oncology
https://www.readbyqxmd.com/read/27853891/impact-of-extended-ginsenoside-rb1-on-early-chronic-kidney-disease-a-randomized-placebo-controlled-study
#8
Xuefang Xu, Qiandi Lu, Jingyue Wu, Yixiang Li, Jinzhu Sun
Ginsenoside Rb1 (GS-Rb1) is a well-known antioxidant derived from traditionally used herbal medicine ginseng. It has been suggested that reactive oxygen species (ROS) is involved in chronic kidney disease (CKD) in which GS-Rb1 may play a protective role. The aim of this study was to evaluate prospectively the effects of GS-Rb1 in patients with early chronic kidney disease. 197 patients who have been diagnosed with early CKD (stage 2 or 3) were recruited and randomly assigned to receive GS-Rb1 (500 mg daily oral administration, n = 103) or placebo (n = 94) for consecutive 6 months...
November 17, 2016: Inflammopharmacology
https://www.readbyqxmd.com/read/27849390/adverse-effects-of-tempol-on-hidrosaline-balance-in-rats-with-acute-sodium-overload
#9
N M Kouyoumdzian, Nl Rukavina Mikusic, G Cao, M R Choi, Sl Della Penna, B E Fernández, J E Toblli, M I Rosón
We studied the effects of tempol, an oxygen radical scavenger, on hydrosaline balance in rats with acute sodium overload. Male rats with free access to water were injected with isotonic (control group) or hypertonic saline solution (0.80 mol/l NaCl) either alone (Na group) or with tempol (Na-T group). Hydrosaline balance was determined during a 90 min experimental period. Protein expressions of aquaporin 1 (AQP1), aquaporin 2 (AQP2), angiotensin II (Ang II) and endothelial nitric oxide synthase (eNOS) were measured in renal tissue...
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27845866/a-canola-oil-supplemented-diet-prevents-type-i-diabetes-caused-lipotoxicity-and-renal-dysfunction-in-a-rat-model
#10
Edgar Cano-Europa, Rocio Ortiz-Butron, Estela Melendez Camargo, María Miriam Esteves-Carmona, Rosa Maria Oliart-Ros, Vanessa Blas-Valdivia, Margarita Franco-Colin
We investigated the effect of a canola oil-supplemented diet on the metabolic state and diabetic renal function of a type I diabetes experimental model. Male Sprague-Dawley rats were randomly divided into four groups: (1) normoglycemic+chow diet, (2) normoglycemic+a canola oil-supplemented chow diet, (3) diabetic+chow diet, and (4) diabetic+a canola oil-supplemented chow diet. For 15 weeks, animals were fed a diet of Purina rat chow alone or supplemented with 30% canola oil. Energetic intake, water intake, body weight, and adipose tissue fat pad were measured; renal function, electrolyte balance, glomerular filtration rate, and the plasmatic concentration of free fatty acids, cholesterol, triglycerides, and glucose were evaluated...
November 2016: Journal of Medicinal Food
https://www.readbyqxmd.com/read/27836073/changes-in-the-renin-angiotensin-aldosterone-system-in-response-to-dietary-salt-intake-in-normal-and-hypertensive-pregnancy-a-randomized-trial
#11
Lise H Nielsen, Per Ovesen, Mie R Hansen, Steven Brantlov, Bente Jespersen, Peter Bie, Boye L Jensen
It was hypothesized that primary renal sodium retention blunted the reactivity of the renin-angiotensin-aldosterone system to changes in salt intake in preeclampsia (PE). A randomized, cross-over, double-blinded, dietary intervention design was used to measure the effects of salt tablets or placebo during low-salt diet in PE patients (n = 7), healthy pregnant women (n = 15), and nonpregnant women (n = 13). High-salt intake decreased renin and angiotensin II concentrations significantly in healthy pregnant women (P < ...
November 2016: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/27833481/cardiac-and-renal-protective-effects-of-dexmedetomidine-in-cardiac-surgeries-a-randomized-controlled-trial
#12
A S Ammar, K M Mahmoud, Z A Kasemy, M A Helwa
BACKGROUND: Cardiac and renal injuries are common insults after cardiac surgeries that contribute to perioperative morbidity and mortality. Dexmedetomidine has been shown to protect several organs against ischemia/reperfusion-(I/R) induced injury. We performed a randomized controlled trial to assess the effect of dexmedetomidine on cardiac and renal I/R injury in patients undergoing cardiac surgeries. MATERIALS AND METHODS: Fifty patients scheduled for elective cardiac surgeries were randomized to dexmedetomidine group that received a continuous infusion of dexmedetomidine initiated 5 min before cardiopulmonary bypass (1 μg/kg over 15 min, followed by 0...
October 2016: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/27832768/central-obesity-associates-with-renal-hyperfiltration-in-the-non-diabetic-general-population-a-cross-sectional-study
#13
Vidar Tor Nyborg Stefansson, Jørgen Schei, Trond Geir Jenssen, Toralf Melsom, Bjørn Odvar Eriksen
BACKGROUND: Obesity is a risk factor for end-stage renal disease. Renal hyperfiltration, defined as an abnormally high glomerular filtration rate (GFR), is a link in the causal chain between diabetes and chronic kidney disease. Whether obesity is associated with hyperfiltration in the non-diabetic general population, remains unresolved due to a lack of consensus regarding the definition of hyperfiltration and the limited precision of high-range GFR estimations with creatinine and/or cystatin C...
November 10, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27804233/quality-of-life-development-during-initial-hemodialysis-therapy-and-association-with-loss-of-residual-renal-function
#14
Christina G Poulsen, Krista D Kjaergaard, Christian D Peters, Bente Jespersen, Jens D Jensen
Introduction Health related quality of life (HRQOL) is markedly reduced in hemodialysis patients compared to the general population. We investigated the course of self-reported HRQOL over time and the association with selected factors, focusing on changes in glomerular filtration rate (GFR). Methods Eighty-two newly started hemodialysis patients from the SAFIR cohort filled out the Kidney Disease Quality of Life Short Form Version 1.3 (KDQOL-SF(TM) ) questionnaire at baseline, 6 and 12 months. The SAFIR study was a randomized, placebo-controlled, double-blind intervention study, examining the effects of the angiotensin II receptor blocker irbesartan...
November 1, 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27802313/effect-of-sodium-glucose-co-transporter-2-inhibitor-dapagliflozin-on-renal-renin-angiotensin-system-in-an-animal-model-of-type-2-diabetes
#15
Seok Joon Shin, Sungjin Chung, Soo Jung Kim, Eun-Mi Lee, Young-Hye Yoo, Ji-Won Kim, Yu-Bae Ahn, Eun-Sook Kim, Sung-Dae Moon, Myung-Jun Kim, Seung-Hyun Ko
BACKGROUND: Renal renin-angiotensin system (RAS) activation is one of the important pathogenic mechanisms in the development of diabetic nephropathy in type 2 diabetes. The aim of this study was to investigate the effects of a sodium-glucose co-transporter 2 (SGLT-2) inhibitor, dapagliflozin, on renal RAS in an animal model with type 2 diabetes. METHODS: Dapagliflozin (1.0 mg/kg, OL-DA) or voglibose (0.6 mg/kg, OL-VO, diabetic control) (n = 10 each) was administered to Otsuka Long-Evans Tokushima Fatty (OLETF) rats for 12 weeks...
2016: PloS One
https://www.readbyqxmd.com/read/27799209/dosing-and-pharmacokinetics-of-polymyxin-b-in-renal-insufficiency
#16
Visanu Thamlikitkul, Yanina Dubrovskaya, Pooja Manchandani, Thundon Ngamprasertchai, Adhiratha Boonyasiri, Jessica T Babic, Vincent H Tam
Polymyxin B remains the last-line treatment option for multidrug-resistant Gram-negative bacterial infections. Current FDA-approved prescribing information recommends that polymyxin B dosing should be adjusted according to patient's renal function, despite studies have shown poor correlation between creatinine and polymyxin B clearance. The objective of the study was to determine if steady state polymyxin B exposures in patients with normal renal function were different from those with renal insufficiency. Nineteen adult patients who received intravenous polymyxin B (1...
October 31, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27788796/surveillance-registry-of-sirolimus-use-in-recipients-of-kidney-allografts-from-expanded-criteria-donors
#17
G Laham, R Scuteri, P Cornicelli, M Arriola, P M Raffaele, M Davalos Michel, N Imperiali, R M Fortunato, E C Maggiora, M V Sal, G Soler Pujol
BACKGROUND: The use of expanded criteria donor (ECD) kidneys has increased the overall availability of renal transplants. This study assessed the use of sirolimus in patients receiving Argentina-ECD kidneys. METHODS: This observational, open-label, 1-arm, prospective, longitudinal pilot study was conducted at 8 transplant centers in Argentina. Adults receiving kidney transplants (without pancreas) from ECDs were eligible if they were converted to sirolimus 1 to 36 months' posttransplantation, with sirolimus becoming base therapy within 1 month after conversion...
October 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27782116/screening-for-muscle-loss-in-patients-established-on-peritoneal-dialysis-using-bioimpedance
#18
G H B Greenhall, A Davenport
: Background/objectivesKidney dialysis patients with sarcopenia have increased mortality. Screening for low muscle mass may allow interventions at an earlier stage to help improve outcomes. We wished to determine the prevalence of low muscle mass in a cohort of peritoneal dialysis (PD) patients.Subjects/methodsWe measured lean body mass index (LBMI) in 490 PD patients by bioimpedance, grading patients using two different classifications of sarcopenia. RESULTS: LBMI was 9...
October 26, 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27779785/development-and-validation-of-a-mathematical-equation-to-estimate-glomerular-filtration-rate-in-cirrhosis-the-rfh-cirrhosis-gfr
#19
Maria Kalafateli, Fred Wickham, Maria Burniston, Evangelos Cholongitas, Eleni Theocharidou, Matteo Garcovich, James O'Beirne, Rachel Westbrook, Gioacchino Leandro, Andrew K Burroughs, Emmanuel A Tsochatzis
: Current expressions based on serum creatinine concentration overestimate kidney function in cirrhosis leading to significant differences between "true" and calculated glomerular filtration rate (GFR). We compared the performance of MDRD-4, MDRD-6 and CKD-EPI with "true" GFR and the impact of this difference on MELD calculation. We subsequently developed and validated a GFR equation specifically for cirrhosis and compared the performance of the new derived formula with existing GFR formulas...
October 25, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27778459/infliximab-is-equivalently-suppressing-oxidative-stress-compared-to-tocilizumab-among-well-controlled-patients-with-rheumatoid-arthritis
#20
Kazuha Kizaki, Fumiharu Yamashita, Tomoya Hayashi, Noboru Funakoshi
AIM: This study was designed to investigate which biological agent, infliximab or tocilizumab, would more intensively keep suppressing oxidative stress among well-controlled patients as C-reactive protein (CRP) levels normalized in rheumatoid arthritis (RA). In addition, it was intended to clarify indicative factors of oxidative stress among well-controlled patients with RA. METHODS: We recruited 61 well-controlled (CRP < 0.3 mg/dL within normal ranges) patients with RA using biological agents (infliximab n = 33; tocilizumab n = 28), active RA patients with CRP > 1...
October 24, 2016: International Journal of Rheumatic Diseases
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