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https://www.readbyqxmd.com/read/28429121/renovascular-hypertension-results-in-adulthood-of-renal-autotransplantation-performed-in-children
#1
Bertrand Chavent, Ambroise Duprey, Marie-Pierre Lavocat, Christine Fichtner, Anne-Marie Beraud, Jean-Noel Albertini, Jean-Pierre Favre, Nicolas Maillard, Xavier Barral
BACKGROUND: This study describes the long-term results of renal autotransplantation for renovascular hypertension performed in children who are now 21 years of age or older. METHODS: Sixteen children (4 boys, 12 girls) with a mean age of 11.2 years at the time of the procedure underwent ex-vivo surgery at the university hospital of Saint-Etienne between 1992 and 2008. Acetylsalicylic acid was used for antiplatelet therapy in the postoperative period, without routine anticoagulation...
April 20, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28417852/nuclear-medicine-in-pediatric-nephro-urology-an-overview
#2
REVIEW
Iosif Mendichovszky, Bernardita Troncoso Solar, Naima Smeulders, Marina Easty, Lorenzo Biassoni
In the context of ante-natally diagnosed hydronephrosis, the vast majority of children with a dilated renal pelvis do not need any surgical treatment, as the dilatation resolves spontaneously with time. Slow drainage demonstrated at Tc-99m-mercaptoacetyltriglycine (MAG3) renography does not necessarily mean obstruction. Obstruction is defined as resistance to urinary outflow with urinary stasis at the level of the pelvic-ureteric junction (PUJ) which, if left untreated, will damage the kidney. Unfortunately this definition is retrospective and not clinically helpful...
May 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28393507/-nephrectomies-in-poor-or-non-functioning-kidneys-is-it-the-right-thing-to-do
#3
B Estors, A E Hernández, E Calleja, M D Rodrigo, J Lumbreras, C Marhuenda
AIM OF THE STUDY: To review our management and outcomes of nephrectomies performed in patients with non-functioning kidneys. METHODS: Retrospective analysis of the patients who underwent nephrectomy surgery in our hospital between 2010 and 2014. Data was collected from the patient charts paying special attention to the clinical resolution of the symptoms that motivated surgery. MAIN RESULTS: A total of 18 nephrectomies were performed. Median age was of 6,5 years (range: 11 months to 15 years)...
July 10, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/28378360/an-increased-extrasynaptic-nmda-tone-inhibits-a-type-k-current-and-increases-excitability-of-hypothalamic-neurosecretory-neurons-in-hypertensive-rats
#4
Meng Zhang, Vinicia C Biancardi, Javier E Stern
We recently showed that a functional coupling between extrasynaptic NMDA receptors (eNMDARs) and the A-type K(+) current (IA ) influences the firing activity of hypothalamic magnocellular neurosecretory neurons (MNCs), as well as homeostatic adaptive responses to a physiological challenge. Here, we aimed to determine whether changes in the eNMDAR-IA coupling also contributed to exacerbated MNCs activity during disease states. We used a combination of patch-clamp electrophysiology and real-time PCR in MNCs in sham and renovascular hypertensive rats (RVH)...
April 5, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28374150/transplantation-of-bone-marrow-derived-mscs-improves-renal-function-and-na-k-atpase-activity-in-rats-with-renovascular-hypertension
#5
Rafaelle Lira, Mariana Oliveira, Marcela Martins, Caroline Silva, Simone Carvalho, Ana Carolina Stumbo, Erika Cortez, Karine Verdoorn, Marcelo Einicker-Lamas, Alessandra Thole, Laís de Carvalho
Renovascular hypertension (RVH) is a progressive disease, leading to chronic kidney disease when untreated and no specific treatment is available. Therefore, development of new therapeutic modalities is imperative. RVH is triggered by renal artery stenosis and subsequent renin-angiotensin-aldosterone system activation; it can be experimentally induced by the 2 Kidneys-1 Clip (2K1C) model. This study investigates the therapeutic potential of renal subcapsular mesenchymal stem cell (MSC) infusion in 2K1C rats...
April 3, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28371854/the-effect-of-revascularization-in-patients-with-anatomically-significant-atherosclerotic-renovascular-disease-presenting-with-high-risk-clinical-features
#6
Diana Vassallo, James Ritchie, Darren Green, Constantina Chrysochou, PhilipA Kalra
Background.: Patients with atherosclerotic renovascular disease (ARVD) and high-risk clinical presentations have largely been excluded from randomized controlled trials comparing renal revascularization and optimal medical therapy. Here, we explore the effect of revascularization on death, progression to end-stage kidney disease (ESKD) and cardiovascular events (CVE) in a highly selected cohort of patients with ARVD. Methods.: All patients with a radiological diagnosis of ARVD referred to our tertiary centre have been recruited into a single-centre cohort study between 1986 and 2014...
March 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28370243/sonographic-evaluation-of-renovascular-hypertension-in-the-pediatric-population-state-of-the-art
#7
REVIEW
Anat Ilivitzki, Luda Glozman, Rebeca Lopez Alfonso, Amos Ofer, Nira Beck Razi, Mika Rotman Shapira
Hypertension in children affects 2-5% of the pediatric population. Identifying secondary causes of hypertension is crucial, as some of these entities may be treatable. Renovascular hypertension accounts for 5-10% of the secondary causes of hypertension in children and is mainly related to fibromuscular dysplasia and neurofibromatosis type 1. Ultrasonographic evaluation of the kidneys, including Doppler interrogation, is the recommended primary screening tool. A comprehensive study of the upper abdomen and retroperitoneum allows for identification of additional underlying etiologies...
March 28, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28347166/oleuropein-improves-glucose-tolerance-and-lipid-profile-in-rats-with-simultaneous-renovascular-hypertension-and-type-2-diabetes
#8
Azadeh Khalili, Ali Akbar Nekooeian, Mohammad Bagher Khosravi
Oleuropein mediates most of the beneficial effects of olive products. This study examined the role of oxidative stress in the effects of oleuropein on lipid profile and blood glucose in rats with simultaneous renovascular hypertension and type 2 diabetes. Eight groups (n = 7-9 each) of male Sprague-Dawley rats including a control, a type 2 diabetic, a renovascular hypertensive, a sham, a simultaneously hypertensive diabetic receiving vehicle, and 3 simultaneously hypertensive-diabetic receiving 20, 40, or 60 mg/kg/day oleuropein were used...
March 28, 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/28325353/renal-artery-stenosis-when-to-revascularize-in-2017
#9
Jose D Tafur, Christopher J White
Atherosclerotic renal artery stenosis is the leading cause of secondary hypertension; it can also cause progressive renal insufficiency and cardiovascular complications such as refractory heart failure and flash pulmonary edema. Medical therapy including risk factor modification, renin-angiotensin-aldosterone system antagonists, lipid lowering agents, and antiplatelet therapy is the first line of treatment in all patients. Patients with uncontrolled renovascular hypertension despite optimal medical therapy, ischemic nephropathy, and cardiac destabilization syndromes who have severe renal artery stenosis are likely to benefit from renal artery revascularization...
April 2017: Current Problems in Cardiology
https://www.readbyqxmd.com/read/28315847/effects-of-peripherally-and-centrally-applied-ghrelin-on-the-oxidative-stress-induced-by-renin-angiotensin-system-in-a-rat-model-of-renovascular-hypertension
#10
Vivian Boshra, Amr M Abbas
BACKGROUND: Renovascular hypertension (RVH) is a result of renal artery stenosis, which is commonly due to astherosclerosis. In this study, we aimed to clarify the central and peripheral effects of ghrelin on the renin-angiotensin system (RAS) in a rat model of RVH. METHODS: RVH was induced in rats by partial subdiaphragmatic aortic constriction. Experiment A was designed to assess the central effect of ghrelin via the intracerebroventricular (ICV) injection of ghrelin (5 μg/kg) or losartan (0...
March 20, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28306749/cigarette-smoking-and-cardio-renal-events-in-patients-with-atherosclerotic-renal-artery-stenosis
#11
Christopher A Drummond, Pamela S Brewster, Wencan He, Kaili Ren, Yanmei Xie, Katherine R Tuttle, Steven T Haller, Kenneth Jamerson, Lance D Dworkin, Donald E Cutlip, Timothy P Murphy, Ralph B D'Agostino, William L Henrich, Jiang Tian, Joseph I Shapiro, Christopher J Cooper
Cigarette smoking causes cardiovascular disease and is associated with poor kidney function in individuals with diabetes mellitus and primary kidney diseases. However, the association of smoking on patients with atherosclerotic renal artery stenosis has not been studied. The current study utilized data from the Cardiovascular Outcomes in Renal Atherosclerotic Lesions (CORAL, NCT00081731) clinical trial to evaluate the effects of smoking on the risk of cardio-renal events and kidney function in this population...
2017: PloS One
https://www.readbyqxmd.com/read/28275232/the-differential-effects-of-low-and-high-doses-of-apelin-through-opioid-receptors-on-the-blood-pressure-of-rats-with-renovascular-hypertension
#12
Mahboobeh Yeganeh-Hajahmadi, Hamid Najafipour, Farzaneh Rostamzadeh
The apelin/APJ system has an important role in the regulation of vascular tone and blood pressure. Opioid receptors (OPRs) are also important cardiovascular regulators and exert many of their effects by modulating the function of other G-protein-coupled receptors. The aim of this study was to analyze the interaction of apelin and the opioid system with respect to vascular responses to apelin in rats with renovascular hypertension (two-kidney, one clip (2K1C)). Homodynamic studies were carried out in 2K1C rats...
March 9, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28270639/new-insights-into-pathophysiology-diagnosis-and-treatment-of-renovascular-hypertension
#13
Fariba Samadian, Nooshin Dalili, Ali Jamalian
Renovascular disease includes renal artery stenosis, renovascular hypertension, and azotemic renovascular disease (ischemic nephropathy). Renovascular hypertension is defined as an elevated blood pressure caused by renal hypoperfusion, usually resulting from anatomic stenosis of the renal artery and activation of the renin-angiotensin system. It accounts for 1% to 2 % of all cases of hypertension in the general population and 5.8 % of secondary hypertension, but it plays a major role in treatable causes of hypertension in the young individuals...
March 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28265213/revascularization-in-a-17-year-old-girl-with-neurofibromatosis-and-severe-hypertension-caused-by-renal-artery-stenosis
#14
Carmen C Beladan, Oliviana D Geavlete, Simona Botezatu, Marin Postu, Bogdan A Popescu, Carmen Ginghina, Ioan M Coman
Renal artery stenosis caused by neurofibromatosis is a rare cause of renovascular hypertension. This hypertension can develop during childhood and is one of the leading causes of poor outcome. We report the case of a 17-year-old girl who was incidentally diagnosed with severe hypertension. During her examination for secondary hypertension, we reached a diagnosis of neurofibromatosis type 1 on the basis of a cluster of typical findings: optic nerve glioma, café au lait spots, nodular neurofibromas, and axillary freckling...
February 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28250413/reply-to-iron-restriction-in-renovascular-hypertension
#15
Yoshiro Naito, Makiko Oboshi, Tohru Masuyama
No abstract text is available yet for this article.
March 2, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28250410/iron-restriction-in-renovascular-hypertension
#16
Masayuki Tanemoto
No abstract text is available yet for this article.
March 2, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28250287/lotus-root-sign-in-the-renal-artery-in-renovascular-hypertension
#17
Kazuhiko Nakazato, Atsushi Kobayashi, Minoru Nodera, Masashi Kamioka, Hitoshi Suzuki, Shu-Ichi Saitoh, Yasuchika Takeishi
No abstract text is available yet for this article.
February 28, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28225234/-renovascular-disease-in-children-a%C3%A2-rare-diagnosis-with-few-symptoms
#18
Hjørdis Thorsteinsdottir, Eric Dorenberg, Pål-Dag Line, Anna Bjerre
BACKGROUND To estimate the prevalence, symptoms, causes and treatment of renovascular disease in children, and also to assess the degree of secondary organ damage to the heart, kidneys and eyes (end organ damage).MATERIAL AND METHOD Retrospective review of data for all children (0 - 16 years) who were examined for resistant hypertension in the period 1998 - 2013 at Oslo University Hospital Rikshospitalet.RESULTS A total of 21 children/adolescents (median age 8.5 years, 11 girls) were assessed and treated for resistant hypertension in the study period...
February 2017: Tidsskrift for Den Norske Lægeforening: Tidsskrift for Praktisk Medicin, Ny Række
https://www.readbyqxmd.com/read/28212051/-99m-tc-mag3-image-wisely
#19
Andrew T Taylor, Russell D Folks, A K M Fazlur Rahman, Aruna Polsani, Eva V Dubovsky, Raghuveer Halkar, Amita Manatunga
Purpose To determine if commonly administered doses of technetium 99m ((99m)Tc) mertiatide (MAG3) in the range of 300-370 MBq (approximately 8-10 mCi) contribute to image interpretation and justify the resulting radiation exposure. Materials and Methods The respective institutional review boards approved this HIPAA-compliant study and waived informed consent. Baseline and furosemide (99m)Tc-MAG3 imaging examinations in 50 patients suspected of having renal obstruction and 48 patients suspected of having renovascular hypertension (RVH) were randomly selected from archived databases and were independently scored by three experienced readers without access to 2-second flow images...
February 17, 2017: Radiology
https://www.readbyqxmd.com/read/28210225/increased-apoptosis-in-the-paraventricular-nucleus-mediated-by-at1r-ras-erk1-2-signaling-results-in-sympathetic-hyperactivity-and-renovascular-hypertension-in-rats-after-kidney-injury
#20
Hongguo Zhu, Lishan Tan, Yumin Li, Jiawen Li, Minzi Qiu, Lanying Li, Mengbi Zhang, Min Liang, Aiqing Li
Background: The central nervous system plays a vital role in the development of hypertension, but the molecular regulatory mechanisms are not fully understood. This study aimed to explore signaling in the paraventricular nucleus (PVN) which might contribute to renal hypertension. Methods: Renal hypertension model was established by five-sixth nephrectomy operation (5/6Nx) in male Sprague Dawley rats. Ten weeks afterwards, they were random assigned to no treatment, or intracerebroventricular injection (ICV) with artificial cerebrospinal fluid, losartan [angiotensin II receptor type 1 (AT1R) antagonist], farnesylthiosalicylic acid (Ras inhibitor), PD98059 (MEK inhibitor), or SB203580 (p38 inhibitor) and Z-DEVD-FMK (caspase-3 inhibitor)...
2017: Frontiers in Physiology
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