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Renal Reserve

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https://www.readbyqxmd.com/read/29049457/association-of-patient-frailty-with-increased-morbidity-after-common-ambulatory-general-surgery-operations
#1
Carolyn D Seib, Holly Rochefort, Kathryn Chomsky-Higgins, Jessica E Gosnell, Insoo Suh, Wen T Shen, Quan-Yang Duh, Emily Finlayson
Importance: Frailty is a measure of decreased physiological reserve that is associated with morbidity and mortality in major elective and emergency general surgery operations, independent of chronological age. To date, the association of frailty with outcomes in ambulatory general surgery has not been established. Objective: To determine the association between frailty and perioperative morbidity in patients undergoing ambulatory general surgery operations. Design, Setting, and Participants: A retrospective cohort study was conducted of 140 828 patients older than 40 years of age from the 2007-2010 American College of Surgeons National Surgical Quality Improvement Program Participant Use File who underwent ambulatory and 23-hour-stay hernia, breast, thyroid, or parathyroid surgery...
October 11, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/29047216/uteroplacental-insufficiency-in-rats-induces-renal-apoptosis-and-delays-nephrogenesis-completion
#2
James Sm Cuffe, Jessica F Briffa, Shannyn Rosser, Andrew L Siebel, Tania Romano, Deanne H Hryciw, Mary E Wlodek, Karen M Moritz
AIM: Uteroplacental insufficiency in rats reduces nephron endowment, leptin concentrations and programs cardiorenal disease in offspring. Cross-fostering growth restricted (Restricted) offspring onto a mother with normal lactation restores leptin concentrations and nephron endowment. This study aimed to determine if the reduced nephron endowment in Restricted offspring is due to delayed glomerular formation and dysregulation of renal genes regulating branching morphogenesis, apoptosis or leptin signalling...
October 19, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/29045037/autoantibodies-targeting-ficolin-2-in-systemic-lupus-erythematosus-patients-with-active-nephritis
#3
Sophie Colliard, Noémie Jourde-Chiche, Giovanna Clavarino, Françoise Sarrot-Reynauld, Evelyne Gout, Alban Deroux, Mélanie Fougere, Nathalie Bardin, Laurence Bouillet, Jean-Yves Cesbron, Nicole M Thielens, Chantal Dumestre-Pérard
OBJECTIVE: Systemic lupus erythematosus (SLE) is a multi-system inflammatory disease characterized by production of various autoantibodies. The aim of this study was to investigate the presence of anti-ficolin-2 antibodies in SLE patients and to evaluate the association between the levels of these autoantibodies, clinical manifestations, and disease activity. METHODS: This is a comparative study using a cohort of 165 SLE patients and 48 healthy subjects. SLE patients were further divided into two groups, with "low disease activity" (SLEDAI score ≤ 4, n = 88) and with "high disease activity" (SLEDAI score > 4, n = 77)...
October 17, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/29044643/fidaxomicin-versus-vancomycin-as-a-first-line-treatment-for-clostridium-difficile-associated-diarrhea-cdad-in-specific-patient-populations-a-pharmacoeconomic-evaluation
#4
Kelly R Reveles, Jennifer L Backo, Frank A Corvino, Marko Zivkovic, Kelly C Broderick
OBJECTIVES: The reduction in recurrent Clostridium difficile-associated diarrhea (CDAD) with fidaxomicin therapy may reduce hospital readmissions and lead to lower overall CDAD costs. However, studies assessing the cost-effectiveness of fidaxomicin as first-line therapy from the United States (US) hospital perspective are lacking. This study evaluated the costs associated with utilizing fidaxomicin or vancomycin as a first-line therapy for CDAD in specific patient populations from a US hospital perspective...
October 17, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/29044520/quercetin-protects-against-radiocontrast-medium-toxicity-in-human-renal-proximal-tubular-cells
#5
Michele Andreucci, Teresa Faga, Antonio Pisani, Raffele Serra, Domenico Russo, GIovambattista De Sarro, Ashour Michael
Radiocontrast media (RCM)-induced acute kidney injury (CI-AKI) is a major clinical problem whose, pathophysiology is not well understood. Direct toxic effects on renal cells, possibly mediated by reactive oxygen species, have been postulated as contributing to CI-AKI. We investigated the effect of quercetin on human renal proximal tubular (HK-2) cells treated with the radiocontrast medium (RCM) sodium diatrizoate. Quercetin is the most widely studied flavonoid, and the most abundant flavonol present in foods...
October 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29044509/comprehensive-transcriptome-analysis-of-fluid-shear-stress-altered-gene-expression-in-renal-epithelial-cells
#6
Steven J Kunnen, Tareq B Malas, Cornelis M Semeins, Astrid D Bakker, Dorien J M Peters
Renal epithelial cells are exposed to mechanical forces due to flow-induced shear stress within the nephrons. Shear stress is altered in renal diseases caused by tubular dilation, obstruction and hyperfiltration, which occur to compensate for lost nephrons. Fundamental in regulation of shear stress are primary cilia and other mechano-sensors, and defects in cilia formation and function have profound effects on development and physiology of kidneys and other organs. We applied RNA sequencing to get a comprehensive overview of fluid-shear regulated genes and pathways in renal epithelial cells...
October 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29042091/effects-of-renal-denervation-on-coronary-flow-reserve-and-forearm-dilation-capacity-in-patients-with-treatment-resistant-hypertension-a-randomized-double-blinded-sham-controlled-clinical-trial
#7
Morten Engholm, Jannik B Bertelsen, Ole N Mathiassen, Hans E Bøtker, Henrik Vase, Christian D Peters, Jesper N Bech, Niels H Buus, Anne P Schroeder, Hans Rickers, Klavs W Hansen, Per L Poulsen, Anne Kaltoft, Kent L Christensen
BACKGROUND: Microvascular impairment is well documented in hypertension. We investigated the effect of renal sympathetic denervation (RDN) on cardiac and peripheral microvasculature in patients with treatment-resistant essential hypertension (TRH). METHODS: A randomized, single centre, double-blinded, sham-controlled clinical trial. Fifty-eight patients with TRH (ambulatory systolic BP (ASBP) ≥ 145mmHg) despite stable treatment were randomized to RDN or SHAM. RDN was performed with the unipolar Medtronic Flex catheter...
October 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29032581/utilization-and-quality-outcomes-of-ct1a-ct1b-and-ct2a-partial-nephrectomy-analysis-of-the-national-cancer-database
#8
Katherine Fero, Zachary A Hamilton, Ahmet Bindayi, James D Murphy, Ithaar H Derweesh
OBJECTIVE: To describe utilization and compare quality outcomes of partial nephrectomy (PN) for cT1a, cT1b and cT2a renal mass using a large national database. METHODS: Retrospective analysis of patients from the US National Cancer Database who underwent PN for cT1a/cT1b/T2a renal cell carcinoma between 2004-2013. We examined utilization of PN over time and quality indicators [positive surgical margin (PSM) and 30-day postoperative readmission rates (30Day-Readmit)]...
October 15, 2017: BJU International
https://www.readbyqxmd.com/read/29031353/regulation-of-acid-base-balance-in-chronic-kidney-disease
#9
REVIEW
Glenn T Nagami, L Lee Hamm
The kidneys play a major role in the regulation of acid-base balance by reabsorbing bicarbonate filtered by the glomeruli and excreting titratable acids and ammonia into the urine. In CKD, with declining kidney function, acid retention and metabolic acidosis occur, but the extent of acid retention depends not only on the degree of kidney impairment but also on the dietary acid load. Acid retention can occur even when the serum bicarbonate level is apparently normal. With reduced kidney function, acid transport processes in the surviving nephrons are augmented but as disease progresses ammonia excretion and, in some individuals, the ability to reabsorb bicarbonate falls, whereas titratable acid excretion is preserved until kidney function is severely impaired...
September 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/29030988/mir-145-5p-inhibits-proliferation-and-inflammatory-responses-of-rmc-through-regulating-akt-gsk-pathway-by-targeting-cxcl16
#10
Junbiao Wu, Yu He, Yining Luo, Lei Zhang, Hua Lin, Xusheng Liu, Bihao Liu, Chunling Liang, Yuan Zhou, Jiuyao Zhou
The main pathological characteristics of chronic glomerulonephritis (CGN) are diffuse mesangial cells proliferation and inflammatory responses. Our previous studies have confirmed that miR-145-5p was abnormally elevated in CGN rats, but its mechanism remains unclear. Therefore, this study aimed to elucidate the mechanism of miR-145-5p in regulation of renal mesangial cells proliferation and inflammatory responses. In vivo study, the cationic bovine serum albumin(C-BSA)-induced CGN rat model was established, and the content of miR-145-5p in renal was examined by qRT-PCR, meanwhile, we also determined the renal function and inflammatory infiltrate...
October 14, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29029361/the-mechanism-of-attenuation-of-epithelial-mesenchymal-transition-by-a-phosphodiesterase-5-inhibitor-via-renal-klotho-expression
#11
Seung Tae Han, Jae Seok Kim, Jun Young Lee, Min Keun Kim, Jin Sae Yoo, Byoung Geun Han, Seung Ok Choi, Jae Won Yang
OBJECTIVES: Phosphodiesterase-5 (PDE-5) inhibitors induces vasodilation in several organs by blocking cyclic GMP (guanosine monophosphate) degradation. However, the existence of alternative mechanism of action in case of an impaired nitric oxide (NO) system remains controversial. Previous studies suggested that decreased NO bioavailability may result in the down-regulation of klotho expression, but the relationship between klotho and NO remains obscure. Therefore, we investigated whether a PDE-5 inhibitor could preserve epithelial mesenchymal transition (EMT) and relationship exists between the NO and renal klotho expression...
October 13, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29028278/functional-variants-in-intercellular-adhesion-molecule-1-and-toll-like-receptor-4-genes-are-more-frequent-in-children-with-febrile-urinary-tract-infection-with-renal-parenchymal-involvement
#12
Almontaser Hussein, Khaled Saad, Eman Askar, Asmaa M Zahran, Hekma Farghaly, Kotb Metwalley, Ahmad A Elderwy
AIM: We studied the functional polymorphisms of intercellular adhesion molecule-1 and toll-like receptor-4 genes and risk of acute pyelonephritis in children attending Assiut University Children's Hospitals, Egypt from 2011 to 2015. METHODS: Urinary tract infections (UTIs) were diagnosed in 380 children: 98 had acute pyelonephritis and 282 had lower UTIs. Four single-nucleotide polymorphisms in intercellular adhesion molecule-1 and toll-like receptor-4 genes were genotyped in all subjects: ICAM-1 rs1799969 Gly241Arg, ICAM-1 rs5498 Glu469Lys, TLR-4 rs4896791 Thr399Ile and TLR-4 rs4896790 Asp299Gly...
October 13, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/29027667/co-inhibitory-profile-and-cytotoxicity-of-cd57-pd-1-t-cells-in-end-stage-renal-disease-patients
#13
Rens Kraaijeveld, Gretchen N de Graav, Marjolein Dieterich, Nicolle H R Litjens, Dennis A Hesselink, Carla C Baan
Blockade of the CD80/86-CD28 pathway by belatacept after kidney transplantation is associated with an increased risk of rejection as compared with standard, calcineurin inhibitor (CNI)-based therapy. CD28(-) T-cells, which express CD57, are not susceptible to belatacept treatment. High number of CD4(+) CD57(+) PD-1(-) T-cells pre transplantation have been associated with a higher chance of rejection, although conflicting data have been reported. To investigate the working mechanism behind this possible higher chance of rejection, we studied the expression of co-inhibitory molecules (CD223, CD244 and PD-1), proliferative capacity and cytotoxic potential of FACS-sorted CD4(+) CD57(+) PD-1(-) and CD8(+) CD57(+) PD-1(-) T-cells, and their CD57(-) control populations, after allo antigen stimulation...
October 13, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29027352/impact-of-spontaneous-donor-hypothermia-on-graft-outcomes-after-kidney-transplantation
#14
P Schnuelle, H M Mundt, F Drüschler, W H Schmitt, B A Yard, B K Krämer, U Benck
A previous donor intervention trial found that therapeutic hypothermia reduced delayed graft function (DGF) after kidney transplantation. This retrospective cohort study nested in the randomized dopamine trial (ClinicalTrials. gov identifier: NCT000115115) investigates the effects of spontaneous donor hypothermia (core body temperature <36°C) on initial kidney graft function, and evaluates five-year graft survival. Hypothermia assessed by a singular measurement in the ICU 4-20 hours before procurement was associated with less DGF after kidney transplantation (OR 0...
October 12, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29027259/early-urinary-biomarkers-of-renal-tubular-damage-by-a-high-salt-intake-independent-of-blood-pressure-in-normotensive-rats
#15
Satoshi Washino, Keiko Hosohata, Denan Jin, Shinji Takai, Tomoaki Miyagawa
Dietary sodium intake has been associated with progression to chronic kidney disease (CKD) as well as hypertension. A high-salt intake causes renal damage independent of hypertension. Because traditional renal biomarkers are insensitive, it is difficult to detect renal injury induced by a high-salt intake, especially in normotensive patients. Here, we investigated whether newly developed renal biomarkers could be detected earlier than traditional biomarkers under a high-salt intake, in normotensive rats. Male Wistar Kyoto rats (WKY) received a regular (0...
October 12, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29023769/alcohol-consumption-variability-in-alcohol-dehydrogenase-genes-and-risk-of-renal-cell-carcinoma
#16
Samuel O Antwi, Jeanette E Eckel-Passow, Nancy D Diehl, Daniel J Serie, Kaitlynn M Custer, Kevin J Wu, John C Cheville, David D Thiel, Bradley C Leibovich, Alexander S Parker
Alcohol consumption has been associated inversely with renal cell carcinoma (RCC) risk; however, no study has examined effect modification by germline variation in alcohol-metabolizing genes. We investigated whether the association between alcohol intake and RCC risk is modulated by germline variants in alcohol dehydrogenase genes in a large case-control study. Data from 652 RCC cases and 1,366 non-cancer controls were analyzed. Alcohol intake was assessed using a standardized risk factor questionnaire. Three previously genotyped polymorphisms in ADH6 and ADH7 with the TaqMan assay were examined...
October 12, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28994461/implantable-cardioverter-defibrillator-in-elderly-predictors-of-appropriate-interventions-and-mortality-at-12-months-follow-up
#17
Sonia Ferretto, Alessandro Zorzi, Chiara Dalla Valle, Federico Migliore, Loira Leoni, Manuel De Lazzari, Domenico Corrado, Sabino Iliceto, Emanuele Bertaglia
BACKGROUND: The effectiveness of implantable cardioverter-defibrillator (ICD) in the elderly is uncertain, given their competing risk of non-arrhythmic death. Guidelines state that an ICD should be implanted if the expectation of survival is at least 1 year. However, survival is not easy to predict in elderly patients with severe cardiac disease. AIM: To assess 12-months survival after ICD implantation in patients aged ≥75 years, to identify predictors of 12-months mortality and to evaluate the incidence of ICD therapy during follow-up...
October 10, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28994444/biomarkers-of-monitoring-and-functional-reserve-of-physiological-systems-over-time-in-hiv-expert-opinions-for-effective-secondary-prevention
#18
Massimo Andreoni, Chiara Mussi, Rita Bellagamba, Francesco Di Campli, Vincenzo Montinaro, Claudio Babiloni
HIV-positive individuals are more vulnerable to poor health than HIV-negative individuals. This vulnerability is characterized by a higher risk of several common, age-related health problems, even after adjustment for established risk factors. This expert opinion report aims at identifying the optimal biomarkers for monitoring the structural integrity and function of physiological systems at risk across aging in HIV-seropositive subjects. These biomarkers, readily available locally and relatively cost-effective for clinicians in primary and secondary care, should allow early detection of the first preclinical structural and functional changes in renal, brain, cardiovascular, and skeleton systems or apparatus in HIV subjects across aging (Table 8)...
October 10, 2017: New Microbiologica
https://www.readbyqxmd.com/read/28994174/subcutaneous-phaeohyphomycosis-in-kidney-transplant-recipients-a-series-of-seven-cases
#19
Haridasan Satish, Sreejith Parameswaran, B H Srinivas, C Laxmisha, B S Bibilash, S Rakesh, R Jayasurya, Padhi Rajesh, S Ezhilnilavan, D K Avinash, P S Priyamvada
BACKGROUND: Superficial and deep fungal infections are more frequent in transplant recipients primarily because of the failure of cell-mediated immunity and lesser amount of antigen-presenting Langerhans cells in their epidermis. Here we report seven cases of post-renal transplant subcutaneous phaeohyphomycosis, all of which manifested within 1 year after transplantation and were unresponsive to prolonged courses of itraconazole. This is the first case series, to our knowledge, of phaeohyphomycosis in transplant recipients in India...
October 9, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28992399/a-rapid-evaluation-of-activity-in-lupus-lfa-real-%C3%A2-correlates-with-more-complex-disease-activity-instruments-whether-evaluated-by-clinical-investigators-or-real-world-clinicians
#20
Anca D Askanase, Samantha C Nguyen, Karen Costenbader, S Sam Lim, Diane Kamen, Cynthia Aranow, Jennifer Grossman, Teja M Kapoor, DeAnna Baker-Frost, Teresa Aberle, Aikaterini Thanou-Stavraki, Leslie M Hanrahan, Mimi Kim, Joan T Merrill
Lupus disease measures such as the SLE Disease Activity Index (SLEDAI) and the British Isles Lupus Assessment Group (BILAG) Index are challenging to interpret. The Lupus Foundation of America-Rapid Evaluation of Activity in Lupus (LFA-REAL) is intended to provide an efficient application of anchored visual analogue scores, each representing the individual severity of active symptoms, with the sum of individual scores deriving an overall disease activity assessment. OBJECTIVES: To compare the performance of LFA-REAL to SLE disease activity assessments and compare scores between trained lupus clinical investigators and clinicians...
October 9, 2017: Arthritis Care & Research
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