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https://www.readbyqxmd.com/read/29346260/race-risk-and-willingness-of-end-stage-renal-disease-patients-without-hepatitis-c-hcv-to-accept-an-hcv-infected-kidney-transplant
#1
Maureen McCauley, Adam Mussell, David Goldberg, Deirdre Sawinski, Rodolfo N Molina, Ricarda Tomlin, Sahil D Doshi, Peter Abt, Roy Bloom, Emily Blumberg, Sanjay Kulkarni, Gabriela Esnaola, Justine Shults, Carrie Thiessen, Peter P Reese
BACKGROUND: Despite effective antiviral treatment, hundreds of kidneys from deceased donors with hepatitis C virus (HCV) are discarded annually. Little is known about the determinants of willingness to accept HCV-infected kidneys among HCV-negative patients. METHODS: At 2 centers, 189 patients undergoing initial or reevaluation for transplant made 12 hypothetical decisions about accepting HCV-infected kidneys in which we systematically varied expected HCV cure rate, allograft quality and wait-time for an uninfected kidney...
January 18, 2018: Transplantation
https://www.readbyqxmd.com/read/29342227/brain-cytosolic-phospholipase-a2%C3%AE-mediates-angiotensin-ii-induced-hypertension-and-reactive-oxygen-species-production-in-male-mice
#2
Chi Young Song, Nayaab S Khan, Francesca-Fang Liao, Bin Wang, Ji Soo Shin, Joseph V Bonventre, Kafait U Malik
Background: Recently we reported that angiotensin II (Ang II)-induced hypertension is mediated by group IV cytosolic phospholipase A2α (cPLA2α) via production of pro-hypertensive eicosanoids. Since Ang II increases blood pressure via its action in the subfornical organ (SFO), it led us to investigate the expression and possible contribution of cPLA2α to oxidative stress and development of hypertension in this brain area. Methods: Adenovirus (Ad)-green fluorescence protein (GFP) cPLA2α short hairpin (sh) RNA (Ad-cPLA2α shRNA) and its control Ad-scrambled shRNA (Ad-Scr shRNA) or Ad-enhanced cyan fluorescence protein cPLA2α DNA (Ad-cPLA2α DNA) and its control Ad-GFP DNA were transduced into SFO of cPLA2α+/+ and cPLA2α-/- male mice, respectively...
January 12, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29341864/comparison-of-acute-kidney-injury-of-different-aetiology-reveals-in-common-mechanisms-of-tissue-damage
#3
Michael Hultström, Mediha Becirovic-Agic, Sofia Jönsson
Acute kidney injury (AKI) is a syndrome of reduced glomerular filtration rate (GFR) and urine production caused by a number of different diseases. It is associated with renal tissue damage. This tissue damage can cause tubular atrophy and interstitial fibrosis that leads to nephron loss and progression of chronic kidney disease (CKD). This review describes the in-common mechanisms behind tissue damage in AKI caused by different underlying diseases. Comparing six high-quality microarray studies of renal gene expression after AKI in disease models (gram-negative sepsis, gram-positive sepsis, ischemia-reperfusion, malignant hypertension, rhabdomyolysis and cisplatin toxicity) identified 5254 differentially expressed genes in at least one of the AKI models...
December 20, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/29341834/improvement-in-overall-survival-with-carfilzomib-lenalidomide-and-dexamethasone-in-patients-with-relapsed-or-refractory-multiple-myeloma
#4
David S Siegel, Meletios A Dimopoulos, Heinz Ludwig, Thierry Facon, Hartmut Goldschmidt, Andrzej Jakubowiak, Jesus San-Miguel, Mihaela Obreja, Julie Blaedel, A Keith Stewart
Purpose In the ASPIRE study of carfilzomib, lenalidomide, and dexamethasone (KRd) versus lenalidomide plus dexamethasone (Rd) in patients with relapsed or refractory multiple myeloma, progression-free survival was significantly improved in the carfilzomib group (hazard ratio, 0.69; two-sided P < .001). This prespecified analysis reports final overall survival (OS) data and updated safety results. Patients and Methods Adults with relapsed multiple myeloma (one to three prior lines of therapy) were eligible and randomly assigned at a one-to-one ratio to receive KRd or Rd in 28-day cycles until withdrawal of consent, disease progression, or occurrence of unacceptable toxicity...
January 17, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29340805/cardiorespiratory-fitness-and-cardiovascular-disease-prevention-an-update
#5
REVIEW
Mouaz H Al-Mallah, Sherif Sakr, Ada Al-Qunaibet
PURPOSE OF REVIEW: Cardiovascular diseases account for nearly one third of all deaths globally. Improving exercise capacity and cardiorespiratory fitness (CRF) has been an important target to reduce cardiovascular events. In addition, the American Heart Association defined decreased physical activity as the fourth risk factor for coronary artery disease. Multiple large cohort studies have evaluated the impact of CRF on outcomes. In this review, we will discuss the role of CRF in reducing cardiovascular morbidity and mortality...
January 16, 2018: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29340149/acute-kidney-injury-due-to-multiple-hymenoptera-stings-a-clinicopathological-study
#6
Sanjay Vikrant, Anupam Parashar
Background: Acute kidney injury (AKI) after multiple Hymenoptera stings is well known but still a rare phenomenon. Methods: We conducted a retrospective study of the clinicopathological spectrum of AKI due to multiple Hymenoptera stings over 13 years (July 2003-June 2016). Results: A total of 35 patients were diagnosed with AKI due to multiple Hymenoptera stings. The mean age of the patients was 44.7 ± 17.4 years and the majority (60%) were men...
August 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29339655/the-impact-of-arterial-clamping-technique-in-robot-assisted-partial-nephrectomy-on-renal-function-and-surgical-outcomes-six-year-experience-at-siriraj-hospital-thailand
#7
Tawatchai Taweemonkongsap, Chalairat Suk-Ouichai, Ekkarin Chotikawanich, Siros Jitpraphai, Varat Woranisarakul, Patkawat Ramart, Kittipong Phinthusophon, Teerapon Amornvesukit, Sunai Leewansangtong, Sittiporn Srinualnad, Chaiyong Nualyong
INTRODUCTION: Robot-assisted partial nephrectomy (RAPN) with different arterial clamping techniques has increasingly been performed to avoid ischemic injury to nephron. However, postoperative renal function remains controversial. We determine the impact of each renal arterial clamping on surgical and renal outcomes after RAPN. MATERIALS AND METHODS: Patients who underwent RAPN at Siriraj Hospital from 2010 to 2016 were retrospectively reviewed and stratified into 3 cohorts: main-clamp (MAC), selective-clamp, and off-clamp...
January 16, 2018: Urologia Internationalis
https://www.readbyqxmd.com/read/29337702/changing-concepts-of-hiv-infection-and-renal-disease
#8
Jean Hou, Cynthia C Nast
PURPOSE OF REVIEW: Human immunodeficiency virus (HIV)-associated nephropathy (HIVAN) was identified as the major renal manifestation of HIV infection early in the HIV epidemic. However, HIV infection now is associated with a different spectrum of renal lesions leading to chronic kidney disease. This review examines the changes in kidney injury occurring in the current HIV era and the factors involved in this transformation of disease expression. RECENT FINDINGS: The incidence of HIVAN and opportunistic infections in HIV-infected individuals has declined in concert with the use of effective combination antiretroviral agents...
January 13, 2018: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29337449/-blood-pressure-management-what-s-new-in-2017
#9
Michel Burnier, Grégoire Wuerzner
In the last 2 years, the attention of hypertension specialists has been focused on the results of the SPRINT trial and its post-hoc analyses and its possible implications for the management of hypertensive patients. While waiting for new European hypertension guidelines due in 2018, the year 2017 can be considered as a year of transition. Yet, several interesting clinical studies have been published which may affect the future management of hypertension. Thus we shall discuss new data on the benefits of eating more fruits and vegetables on cardiovascular mortality, the « quadpill » concept, the impact of various non-steroidal anti-inflammatory drugs on blood pressure and the most recent data on renal denervation...
January 10, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29334930/safety-and-adequacy-of-percutaneous-kidney-biopsy-performed-by-nephrology-trainees
#10
Vittoria Esposito, Giulia Mazzon, Paola Baiardi, Massimo Torreggiani, Luca Semeraro, Davide Catucci, Marco Colucci, Alice Mariotto, Fabrizio Grosjean, Giacomo Bovio, Ciro Esposito
BACKGROUND: Recently there has been a progressive loss of specialty related skills for nephrologists. Among the skills we find the kidney biopsy that has a central role in diagnosis of renal parenchymal disease. One of the causes might be the belief that the kidney biopsy should be performed only in larger Centers which can rely on the presence of a renal pathologist and on nephrologists with a large experience. This trend may increase in the short term procedural safety but may limit the chance of in training nephrologists to become confident with the technique...
January 15, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29334883/renal-outcomes-in-patients-initiated-on-tenofovir-disoproxil-fumarate-based-antiretroviral-therapy-at-a-community-health-centre-in-malawi
#11
Bongani Chikwapulo, Bagrey Ngwira, Jean Baptiste Sagno, Rhys Evans
Tenofovir-based antiretroviral therapy (TDF ART) is the first-line regimen for human immunodeficiency virus (HIV) in Africa. However, contemporary data on nephrotoxicity are lacking. We determined the renal outcomes of patients commenced on TDF ART in Malawi. ART-naïve patients initiated on TDF ART at a community health centre between 1 July 2013 and 31 December 2015 were included. The estimated glomerular filtration rate (eGFR, Cockcroft-Gault) was recorded at the initiation of therapy and over 18 months thereafter...
January 1, 2018: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/29333579/factors-associated-with-the-number-and-size-of-renal-angiomyolipomas-in-sporadic-angiomyolipoma-saml-a-study-of-adult-patients-with-saml-managed-in-a-dutch-tertiary-referral-center
#12
J L H Ruud Bosch, Francis Vekeman, Mei Sheng Duh, Maureen Neary, Matthew Magestro, Jonathan Fortier, Paul Karner, Raluca Ionescu-Ittu, Bernard A Zonnenberg
PURPOSE: To describe the patient characteristics, treatments, disease monitoring, and kidney function of patients with sporadic angiomyolipoma (sAML), stratified by the number and size of renal angiomyolipomas (AMLs). METHODS: Single-center retrospective analysis of patients with sAML treated from 1990 to 2015 in a dedicated clinic for inheritable tumor syndromes in a tertiary referral center from the Netherlands. Patients' first AML assessment at the clinic was defined as the index date...
January 15, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29333506/murine-models-of-heart-failure-with-preserved-ejection-fraction-a-fishing-expedition
#13
Maria Valero-Muñoz, Warren Backman, Flora Sam
Heart failure with preserved ejection fraction (HFpEF) is characterized by signs and symptoms of HF in the presence of a normal left ventricular (LV) ejection fraction (EF). Despite accounting for up to 50% of all clinical presentations of HF, the mechanisms implicated in HFpEF are poorly understood, thus precluding effective therapy. The pathophysiological heterogeneity in the HFpEF phenotype also contributes to this disease and likely to the absence of evidence-based therapies. Limited access to human samples and imperfect animal models that completely recapitulate the human HFpEF phenotype have impeded our understanding of the mechanistic underpinnings that exist in this disease...
December 2017: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/29332180/cd39-adenosinergic-axis-in-renal-pathophysiology-and-therapeutics
#14
REVIEW
Bellamkonda K Kishore, Simon C Robson, Karen M Dwyer
Extracellular ATP interacts with purinergic type 2 (P2) receptors and elicits many crucial biological functions. Extracellular ATP is sequentially hydrolyzed to ADP and AMP by the actions of defined nucleotidases, such as CD39, and AMP is converted to adenosine, largely by CD73, an ecto-5'-nucleotidase. Extracellular adenosine interacts with P1 receptors and often opposes the effects of P2 receptor activation. The balance between extracellular ATP and adenosine in the blood and extracellular fluid is regulated chiefly by the activities of CD39 and CD73, which constitute the CD39-adenosinergic axis...
January 13, 2018: Purinergic Signalling
https://www.readbyqxmd.com/read/29331969/temporal-trends-in-antithrombotic-treatment-of-real-world-uk-patients-with-newly-diagnosed-atrial-fibrillation-findings-from-the-garfield-af-registry
#15
Patricia N Apenteng, Haiyan Gao, Fd Richard Hobbs, David A Fitzmaurice
OBJECTIVE: To investigate evolving patterns in antithrombotic treatment in UK patients with newly diagnosed non-valvular atrial fibrillation (AF). DESIGN: Prospective, multicentre, international registry. SETTING: 186 primary care practices in the UK. PARTICIPANTS: 3482 participants prospectively enrolled in four sequential cohorts (cohort 2 (C2) n=830, diagnosed September 2011 to April 2013; cohort 3 (C3) n=902, diagnosed April 2013 to June 2014; cohort 4 (C4) n=850, diagnosed July 2014 to June 2015; cohort 5 (C5) n=900, diagnosed June 2015 to July 2016)...
January 13, 2018: BMJ Open
https://www.readbyqxmd.com/read/29330520/association-of-homocysteine-with-aysmptomatic-intracranial-and-extracranial-arterial-stenosis-in-hypertension-patients
#16
Yan Wang, Jin Zhang, Yuesheng Qian, Xiaofeng Tang, Huawei Ling, Kemin Chen, Yan Li, Pingjin Gao, Dingliang Zhu
Elevated plasma homocysteine (Hcy) is suggested as an independent risk factor for stroke. We aimed to investigate the association of Hcy concentration with intracranial atherosclerosis (ICAS) and extracranial AS (ECAS) in hypertensive patients without stroke in Chinese population and to explore modified effect of methylenetetrahydrofolate reductase (MTHFR) C677T on their relationship. The stenosis of intracranial and extracranial arteries were evaluated in a total of 929 subjects through computerized tomographic angiography (CTA) from aortic arch to the skull base...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330204/pazopanib-exposure-relationship-with-clinical-efficacy-and-safety-in-the-adjuvant-treatment-of-advanced-renal-cell-carcinoma
#17
Cora Sternberg, Frede Donskov, Naomi B Haas, Christian Doehn, Paul Russo, Mohamed A Elmeliegy, Guillaume Baneyx, Hiya Banerjee, Paola Aimone, Robert J Motzer
PURPOSE: PROTECT, a phase III randomized placebo-controlled study, evaluated pazopanib efficacy and safety in the adjuvant RCC setting. The relationship between pazopanib exposure (Ctrough) and efficacy and safety was evaluated. EXPERIMENTAL DESIGN: Evaluable steady-state blood trough concentrations were collected from 311 patients at week 3 or 5 (early Ctrough), and 250 patients at week 16 or 20 (late Ctrough). Pazopanib pharmacokinetic (PK) data was analyzed via a population model approach...
January 12, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29329358/modulating-role-of-ang1-7-in-control-of-blood-pressure-and-renal-function-in-angii-infused-hypertensive-rats
#18
Marta Kuczeriszka, Elzbieta Kompanowska-Jezierska, Janusz Sadowski, Minolfa Prieto, L Gabriel Navar
Background: Indirect evidence suggests that angiotensin 1-7 (Ang1-7) may counterbalance prohypertensive actions of angiotensin II (AngII), via activation of vascular and/or renal tubular receptors to cause vasodilation and natriuresis/diuresis. We examined if Ang1-7 would attenuate the development of hypertension, renal vasoconstriction and decreased natriuresis in AngII-infused rats and evaluated the mechanisms involved. Methods: AngII, alone or with Ang1-7, was infused to conscious Sprague-Dawley rats for 13 days and systolic blood pressure (SBP) and renal excretion were repeatedly determined...
January 10, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29328390/investigation-into-the-underlying-molecular-mechanisms-of-hypertensive-nephrosclerosis-using-bioinformatics-analyses
#19
Tianlong Liu, Minna Liu, Peijin Shang, Xin Jin, Wenxing Liu, Yikai Zhang, Xinfang Li, Yi Ding, Yuwen Li, Aidong Wen
Hypertensive nephrosclerosis (HNS) is a major risk factor for end-stage renal disease. However, the underlying pathogenesis of HNS remains to be fully determined. The gene expression profile of GSE20602, which consists of 14 glomeruli samples from patients with HNS and 4 normal glomeruli control samples, was obtained from the Gene Expression Omnibus database. Gene ontology (GO) and pathway enrichment analyses were performed in order to investigate the functions and pathways of differentially expressed genes (DEGs)...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29326280/autoantibodies-against-angiotensin-and-adrenergic-receptors-more-than-a-biomarker
#20
Rugina Neuman, A H Jan Danser
Agonistic autoantibodies (AAs) directed against receptors of the sympathetic nervous system and the renin-angiotensin system have been suggested to contribute to cardiovascular and renal disease, in particular hypertension, preeclampsia, and graft failure in kidney transplantation patients. Consequently, they are now also being studied as biomarker for these conditions. This commentary summarizes our current understanding of these AAs, critically discussing whether they truly act as agonist, and focusing on the wide array of assays that are currently used for their quantification...
January 16, 2018: Clinical Science (1979-)
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