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https://www.readbyqxmd.com/read/28449316/does-my-high-blood-pressure-improve-your-survival-overall-and-subgroup-learning-curves-in-health
#1
Raf Van Gestel, Tobias Müller, Johan Bosmans
Learning curves in health are of interest for a wide range of medical disciplines, healthcare providers, and policy makers. In this paper, we distinguish between three types of learning when identifying overall learning curves: economies of scale, learning from cumulative experience, and human capital depreciation. In addition, we approach the question of how treating more patients with specific characteristics predicts provider performance. To soften collinearity problems, we explore the use of least absolute shrinkage and selection operator regression as a variable selection method and Theil-Goldberger mixed estimation to augment the available information...
April 27, 2017: Health Economics
https://www.readbyqxmd.com/read/28448180/renal-denervation-decreases-blood-pressure-and-renal-tyrosine-hydroxylase-but-does-not-augment-the-effect-of-hypotensive-drugs
#2
Janusz Skrzypecki, Maciej Gawlak, Tomasz Huc, Paweł Szulczyk, Marcin Ufnal
The effect of renal denervation on the efficacy of antihypertensive drugs has not yet been elucidated. Twenty-week-old spontaneously hypertensive rats were treated with metoprolol, losartan, indapamide, or saline (controls) and assigned to renal denervation or a sham procedure. Acute hemodynamic measurements were performed ten days later. Series showing a significant interaction between renal denervation and the drugs were repeated with chronic telemetry measurements. In the saline series, denervated rats showed a significantly lower mean arterial blood pressure (blood pressure) than the sham-operated rats...
2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28447577/prognostic-value-of-adamts13-in-patients-with-severe-sepsis-and-septic-shock
#3
M Feroz Azfar, M Faisal Khan, S Shahid Habib, Z Al Aseri, A Mohammad Zubaidi, D Ocampo Aguila, M Owais Suriya, Hameed Ullah
PURPOSE: ADAMTS13 level was evaluated as a predictor of mortality in patients with severe sepsis and septic shock, and compared with Acute Physiology and Chronic Health Evaluation II (APACHE II) scores. METHODS: This prospective observational study was conducted in the Medical and Surgical Intensive Care Units of King Khalid University Hospital. Detailed clinical evaluations were performed on 84 patients (56.08±18.18 years of age) with severe sepsis and septic shock...
April 26, 2017: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/28447048/ace-i-d-and-mmp-7-a-181g-variants-and-the-risk-of-end-stage-renal-disease
#4
Zohreh Rahimi, Hamed Abdi, Maryam Tanhapoor, Ziba Rahimi, Asad Vaisi-Raygani, Hamid Nomani
The variants of angiotensin converting enzyme (ACE) and matrix metalloproteinases (MMPs) genes might be involved in the pathogenesis of end stage renal disease (ESRD) and hypertension. We studied the ACE insertion/deletion (I/D) and MMP-7 A-181G variants in 99 unrelated ESRD patients and 117 individuals without renal complications from Western Iran with Kurdish ethnic background. The frequency of ACE I/D variants was not significantly different between ESRD patients and controls. However, the presence of ACE D allele increased the risk of hypertension in ESRD patients by 2...
March 2017: Molecular Biology Research Communications
https://www.readbyqxmd.com/read/28446517/a-novel-%C3%AE-calcitonin-gene-related-peptide-analogue-protects-against-end-organ-damage-in-experimental-hypertension-cardiac-hypertrophy-and-heart-failure
#5
Aisah A Aubdool, Pratish Thakore, Fulye Argunhan, Sarah-Jane Smillie, Moritz Schnelle, Salil Srivastava, Khadija M Alawi, Elena Wilde, Jennifer Mitchell, Keith Farrell-Dillon, Daniel A Richards, Giuseppe Maltese, Richard C Siow, Manasi Nandi, James E Clark, Ajay M Shah, Anette Sams, Susan D Brain
Background -Research into the therapeutic potential of α-calcitonin gene-related peptide (α-CGRP) has been limited due to its peptide nature and short half-life. Here, we evaluate whether a novel potent and long lasting (t½ ≥ 7h) acylated α-CGRP analogue (αAnalogue) could alleviate and reverse cardiovascular disease in two distinct murine models of hypertension and heart failure in vivoMethods -The ability of the αAnalogue to act selectively via the CGRP pathway was shown in skin using a CGRP receptor antagonist...
April 26, 2017: Circulation
https://www.readbyqxmd.com/read/28445258/renal-vascular-calcification-and-response-to-renal-nerve-denervation-in-resistant-hypertension
#6
Annemiek F Hoogerwaard, Mark R de Jong, Ahmet Adiyaman, Jaap Jan J Smit, Peter P H M Delnoy, Jan-Evert Heeg, Boudewijn A A M van Hasselt, Anand R Ramdat Misier, Arif Elvan
Renal sympathetic nerve denervation (RDN) is accepted as a treatment option for patients with resistant hypertension. However, results on decline in ambulatory blood pressure (BP) measurement (ABPM) are conflicting. The high rate of nonresponders may be related to increased systemic vascular stiffness rather than sympathetic overdrive. A single center, prospective registry including 26 patients with treatment resistant hypertension who underwent RDN at the Isala Hospital in the Netherlands. Renal perivascular calcium scores were obtained from noncontrast computed tomography scans...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445207/effect-of-renal-sympathetic-denervation-on-short-term-blood-pressure-variability-in-resistant-hypertension-a-meta-analysis
#7
Nikos Vogiatzakis, Costas Tsioufis, Georgios Georgiopoulos, Costas Thomopoulos, Kyriakos Dimitriadis, Alexandros Kasiakogias, Dimitrios Konstantinidis, Thodoris Kalos, Felix Mahfoud, Michael Doumas, Vasilios Papademetriou, Dimitrios Tousoulis
BACKGROUND/OBJECTIVES: Short-term blood pressure variability (BPV) is affected by multiple factors including the sympathetic nervous system drive. Regarding the latter, the novel interventional technology of renal denervation (RDN), by modulating the sympathetic system activation, could have a beneficial impact on BPV. The aim of the current study is to review and meta-analyze the available evidence on the effect of RDN on short-term BPV. METHODS: We searched Medline/PubMed database until October 2016 for studies with eligible content...
April 25, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28445205/inhibition-of-microrna-429-in-the-renal-medulla-increased-salt-sensitivity-of-blood-pressure-in-sprague-dawley-rats
#8
Qing Zhu, Junping Hu, Lei Wang, Weili Wang, Zhengchao Wang, Pin-Lan Li, Krishna M Boini, Ningjun Li
BACKGROUND: We have previously shown that high salt intake suppresses the expression of prolyl hydroxylase domain-containing protein 2 (PHD2), an enzyme promoting the degradation of hypoxia-inducible factor (HIF)-1α, and increases HIF-1α along with its target genes in the renal medulla, which promotes sodium excretion and regulate salt sensitivity of blood pressure. However, it remains unknown how high salt inhibits the expression of PHD2. METHOD AND RESULTS: The current study first revealed that high-salt-induced PHD2 inhibition was due to the enhanced decay of mRNA...
April 25, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28444694/outcomes-of-acute-kidney-injury-in-a-department-of-internal-medicine-in-abidjan-cote-d-ivoire
#9
Kouamé Hubert Yao, Serge Didier Konan, Weu Melanie Tia, Sery Patrick Diopoh, Raoul Moh, Sindou Sanogo
OBJECTIVES: To investigate the prognostic factors of acute kidney injury (AKI) in our daily practice. METHODS: We analyzed the cohort of patients hospitalized for AKI in the period from January 2010 to December 2015 in the Department of Internal Medicine, University Hospital of Treichville. Kaplan Meier curves were built for survival analysis. Cox regression analysis was used to identify independent predictors of mortality. RESULTS: We collected 414 cases of AKI during the study period...
April 25, 2017: Nephrology
https://www.readbyqxmd.com/read/28443676/pre-operative-nomograms-for-predicting-renal-function-at-1-year-after-partial-nephrectomy
#10
Cheuk Fan Shum, Clinton D Bahler, Clint Cary, Timothy A Masterson, Ronald S Boris, Thomas A Gardner, Hristos Z Kaimakliotis, Rick Foster, Richard Bihrle, Michael Koch, James E Slaven, Chandru P Sundaram
INTRODUCTION: Partial nephrectomy (PN) reduces the risk of post-operative chronic renal insufficiency (CRI). However, some patients still develop CRI after PN, and may eventually require dialysis. Being able to predict renal function before PN helps in counseling patients and managing expectations. We aimed to construct nomograms that predict estimated glomerular filtration rate (eGFR), defined by the Modification of Diet in Renal Disease (MDRD) and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formulae, at one year after PN, using only pre-operative covariates as predictors...
April 26, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28443356/sham-or-no-sham-control-that-is-the-question-in-trials-of-renal-denervation-for-resistant-hypertension-a-systematic-meta-analysis
#11
Fadl Elmula M Fadl Elmula, Ying-Mei Feng, Lotte Jacobs, Anne C Larstorp, Sverre E Kjeldsen, Alexandre Persu, Jan A Staessen
BACKGROUND: Studies of renal denervation (RDN) in patients with apparent treatment resistant hypertension have been hampered by a number of patient and physician related confounders on blood pressure (BP) including poor drug adherence. It remains uncertain whether RDN lowers BP. We aimed to investigate whether the use of sham control is essential in RDN studies or whether systematic use of 24-hour ambulatory BP provides enough information thereby making an invasive sham control redundant...
April 26, 2017: Blood Pressure
https://www.readbyqxmd.com/read/28442491/constitutively-active-spak-causes-hyperkalemia-by-activating-ncc-and-remodeling-distal-tubules
#12
P Richard Grimm, Richard Coleman, Eric Delpire, Paul A Welling
Aberrant activation of with no lysine (WNK) kinases causes familial hyperkalemic hypertension (FHHt). Thiazide diuretics treat the disease, fostering the view that hyperactivation of the thiazide-sensitive sodium-chloride cotransporter (NCC) in the distal convoluted tubule (DCT) is solely responsible. However, aberrant signaling in the aldosterone-sensitive distal nephron (ASDN) and inhibition of the potassium-excretory renal outer medullary potassium (ROMK) channel have also been implicated. To test these ideas, we introduced kinase-activating mutations after Lox-P sites in the mouse Stk39 gene, which encodes the terminal kinase in the WNK signaling pathway, Ste20-related proline-alanine-rich kinase (SPAK)...
April 25, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28442280/kidney-disease-in-patients-with-obesity-it-is-not-always-obesity-related-glomerulopathy-alone
#13
Steven P Salvatore, James M Chevalier, Sheng F Kuo, Pat F Audia, Surya V Seshan
OBJECTIVE: Patients with obesity are at risk for chronic kidney disease. The aim is to characterize the spectrum of kidney disease in these patients, which may be related to obesity, termed obesity-related glomerulopathy (ORG), or may have other diseases secondary to associated or unassociated medical conditions. METHODS: Native kidney biopsies from 2000 to 2012 were retrospectively reviewed from all patients with body mass index >30kg/m(2). Glomerular diameter was measured using a standard micrometer and clinicopathologic characteristics were analyzed...
April 22, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28441700/ultrasound-based-renal-sympathetic-denervation-for-the-treatment-of-therapy-resistant-hypertension-a-single-center-experience
#14
Karl Fengler, Robert Höllriegel, Thomas Okon, Thomas Stiermaier, Karl-Philipp Rommel, Stephan Blazek, Christian Besler, Max von Roeder, Martin Petzold, Gerhard Schuler, Philipp Lurz
INTRODUCTION: The effectiveness of renal sympathetic denervation (RDN) as a treatment for therapy-resistant hypertension has been doubted as the Simplicity-HTN-3 trial was unable to show any treatment benefit over sham procedure. This might partly be explained by a high procedural variability in treatment with radiofrequency-based catheters. Recently, newer systems for RDN, like ultrasound-based devices, have been introduced into practice. To date however, data on their effectiveness for the treatment of resistant hypertension are scarce...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28439166/end-stage-renal-disease-not-a-contraindication-for-minor-oral-surgery-protocol-for-the-management-of-oral-surgery-patients-with-esrd-on-hemodialysis
#15
Sneha Pendem, G Lakshmi Narayana, Poornima Ravi
OBJECTIVE: To describe a safe and effective protocol for the management of patients with end stage renal disease (ESRD) undergoing minor oral surgery. SUBJECTS AND METHODS: A prospective cohort study was conducted on all patients with ESRD who were referred for dental consultation. A definite protocol was designed in consultation with the nephrologist to minimize the risk of bleeding and wound healing complications during and after the minor surgical procedures...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28438904/loss-of-resistance-to-angiotensin-ii-induced-hypertension-in-the-jackson-laboratory-recombination-activating-gene-null-mouse-on-the-c57bl-6j-background
#16
Hong Ji, Amrita V Pai, Crystal A West, Xie Wu, Robert C Speth, Kathryn Sandberg
Resistance to angiotensin II (Ang II)-induced hypertension in T-cell-deficient male mice with a targeted mutation in the recombination-activating gene-1 (Rag1) on the C57BL/6J background (B6.Rag1(-)(/-) -M), which was reported by 5 independent laboratories including ours before 2015, has been lost. In mice purchased from Jackson Laboratory in 2015 and 2016, the time course and magnitude increase in mean arterial pressure induced by 2 weeks of Ang II infusion at 490 ng/kg per minute was identical between B6...
April 24, 2017: Hypertension
https://www.readbyqxmd.com/read/28438765/longitudinal-characterization-of-renal-proximal-tubular-markers-in-normotensive-and-preeclamptic-pregnancies
#17
Elisabeth Codsi, Vesna D Garovic, Maria L Gonzalez-Suarez, Natasa Milic, Kristi S Borowski, Carl H Rose, Norman P Davies, Kianoush Kashani, John C Lieske, Wendy M White
Glomerular damage is common in preeclampsia (PE), but the extent and etiology of tubular injury are not well understood. The aim of this study was to evaluate tubular injury in patients with PE and to assess whether it predates clinical disease. We performed a prospective cohort study of 315 pregnant women who provided urine samples at the end of the second trimester and at delivery. This analysis included women who developed PE (n=15), gestational hypertension (GH) (n=14), and normotensive controls (NC) (n=44)...
April 24, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28438616/pericytic-tumors-of-the-kidney-a-clinicopathologic-analysis-of-17-cases
#18
Deepika Sirohi, Steven C Smith, Jonathan I Epstein, Bonnie L Balzer, Jeffry P Simko, Dana Balitzer, Jamal Benhamida, Oleksandr N Kryvenko, Nilesh S Gupta, Swetha Paluru, Isabela Werneck da Cunha, Daniel N Leal, Sean R Williamson, Mariza de Peralta-Venturina, Mahul B Amin
The pericytic (perivascular myoid cell) family of tumors is a distinctive group of mesenchymal neoplasms encountered in superficial sites and only rarely seen in viscera. The pericytic family subtends a spectrum of lesions, namely, glomus tumors and variants; myopericytoma, including myofibroma; and angioleiomyoma. In light of the contemporary classification of pericytic lesions, we identified and reviewed 17 cases of renal pericytic tumors from the files of 6 referral centers. These tumors presented over an age range of 17 to 76years (mean 46...
April 21, 2017: Human Pathology
https://www.readbyqxmd.com/read/28436415/blood-pressure-reduction-in-patients-with-accessory-renal-arteries-and-bilateral-single-renal-arteries-after-catheter-based-renal-denervation-prospective-study-with-3-year-follow-up
#19
Krzysztof Bartus, Jakub Podolec, Jerzy Sadowski, Radosław Litwinowicz, Wojciech Zajdel, Magdalena Bartus, Janusz Konstanty-Kalandyk, Artur Dziewierz, Rafał Trąbka, Stanisław Bartus, Anna Chrapusta, Bogusław Kapelak
INTRODUCTION    Catheter-based renal denervation is an effective treatment leading to significant reduction of systolic and diastolic blood pressure in patients with resistant hypertension. OBJECTIVES    The aim of this prospective study was to assess the BP-lowering effect and pulse pressure lowering effects in patients with accessory and bilateral single renal arteries after catheter-based renal denervation procedure in a 3-year follow-up period. PATIENTS AND METHODS    31 patients with diagnosed resistant hypertension were enrolled in this study...
April 24, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28434467/abdominal-and-auricular-acupuncture-reduces-blood-pressure-in-hypertensive-patients
#20
Hamid Abdi, Maryam Tayefi, Seyed Reza Moallem, Baxiao Zhao, Mojtaba Fayaz, Hossein Mohaddes Ardabili, Akram-Alsadat Razavi, Mahsa Darbandi, Sara Darbandi, Parisa Abbasi, Gordon A Ferns, Majid Ghayour-Mobarhan
INTRODUCTION: Hypertension is an important risk factor of cardiovascular disease (CVD), which is associated with premature death, myocardial infarction, stroke, peripheral vascular disease, and renal disease. The goal of the present study was to use a randomized controlled clinical trial to explore and compare the effectiveness of abdominal and auricular acupuncture on blood pressure in 440 subjects with and without obesity. METHODS: Four hundred participants were recruited and randomized to one of four groups: cases and controls receiving auricular acupuncture (204 subjects) and cases and controls receiving abdominal electroacupuncture (196 subjects)...
April 2017: Complementary Therapies in Medicine
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