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Yongbin Lu, Zhiyuan Cheng, Yaxue Zhao, Xiaoyu Chang, Cynthia Chan, Yana Bai, Ning Cheng
BACKGROUND AND AIMS: Our study aims to evaluate the efficacy and safety of long-term treatment of statins for coronary heart disease (CHD). METHODS: Efficacy outcomes included changes in blood lipids, risk of CHD mortality and all-cause mortality. Safety outcomes were evaluated by the risk of adverse events (AE). Bayesian network meta-analysis was used to compare the direct and indirect effects between different statins. RESULTS: The systematic review showed that levels of blood lipids decreased during statin treatment...
October 14, 2016: Atherosclerosis
Hidemi Takeuchi, Michihiro Okuyama, Haruhito A Uchida, Yuki Kakio, Ryoko Umebayashi, Yuka Okuyama, Yasuhiro Fujii, Susumu Ozawa, Masashi Yoshida, Yu Oshima, Shunji Sano, Jun Wada
BACKGROUND AND AIMS: Chronic kidney disease (CKD) and diabetes mellitus (DM) are considered as risk factors for cardiovascular diseases. The purpose of this study was to clarify the relationship of CKD and DM with the presence of abdominal aortic aneurysm (AAA). METHODS: We enrolled 261 patients with AAA (AAA+) and age-and-sex matched 261 patients without AAA (AAA-) at two hospitals between 2008 and 2014, and examined the association between the risk factors and the presence of AAA...
2016: PloS One
Allison Ducharme-Smith, Ben Z Katz, Amy E Bobrowski, Carl L Backer, Elfriede Pahl
BKV infection and nephropathy complicate pediatric HTx, but the incidence and time course of the disease are unknown. We assessed the incidence of BKV infection and its association with kidney dysfunction in pediatric HTx recipients. A single center prospective study compared pediatric (<18 years) HTx recipients, with and without BKV infection, who received an allograft between September 2013 and December 2014. Screening of urine for BKV was performed prior to transplant, and at week 1, and at months 3, 6, 9, 12, and 15 months post-transplantation...
October 20, 2016: Pediatric Transplantation
Daniel J Friedman, Haikun Bao, Erica S Spatz, Jeptha P Curtis, James P Daubert, Sana M Al-Khatib
BACKGROUND: -A prolonged PR interval is common among cardiac resynchronization therapy (CRT) candidates; however, the association between PR interval and outcomes is unclear, and data are conflicting. METHODS: -We conducted inverse probability weighted (IPW) analyses of 26,451 CRT eligible (EF≤35, QRS≥120ms) patients from the National Cardiovascular Data Registry ICD Registry to assess the association between a prolonged PR interval (≥230ms), receipt of CRT with defibrillator (CRT-D) versus implantable cardioverter defibrillator (ICD), and outcomes...
October 19, 2016: Circulation
Sentaro Imamura, Shintaro Narita, Ryuta Nishikomori, Hiroshi Tsuruta, Kazuyuki Numakura, Atsushi Maeno, Mitsuru Saito, Takamitsu Inoue, Norihiko Tsuchiya, Hiroshi Nanjo, Toshio Heike, Shigeru Satoh, Tomonori Habuchi
BACKGROUND: Secondary bladder amyloidosis is an extremely rare disease, resulting from a chronic systematic inflammatory disorder associated with amyloid deposits. Although uncommon in Japan, familial Mediterranean fever (FMF) is a hereditary autoinflammatory disease characterized by recurrent episodes of fever of short duration and serositis and is frequently associated with systemic amyloidosis. Here, we present a case of a Japanese patient complaining of fever and macroscopic hematuria after a living donor renal transplantation...
October 19, 2016: BMC Research Notes
Haisheng He, Jian Zhang, Yunchang Xie, Yi Lu, Jianping Qi, Ejaj Ahmad, Xiaochun Dong, Weili Zhao, Wei Wu
One of the biggest challenges in bioimaging of nanoparticles is how to identify integral particles from bulk signals of probes. Signals of free probes are always mistakenly counted into total signals of particles. In this study, in vivo fate of intravenous polymeric micelles (PMs, mPEG2.5k-PDLLA2.5k) was explored using a highly sensitive near-infrared environment-responsive fluorescent probe. This probe is able to emit fluorescence when embedded in nanocarriers but quench spontaneously and absolutely upon release into water, based on the aggregation-caused quenching effect, which means that the interference generated by free probes can be completely diminished...
October 19, 2016: Molecular Pharmaceutics
Wang Nai Dong, Li Jing Jun, Wang Ai Bing, Zhu Zhe, Chang Yan, Mao Yu, Zan Yang, Wang Zan Feng, Deng Zhi Bang
In order to investigate whether PCV2b can be transmitted across the placenta in sows thereby causing vertical infection of fetuses, six sows in 75 day of pregnancy were either intramuscularly inoculated with a PCV2b culture supernatant (n = 4) or mock infected with cell culture supernatant (n = 2). At parturition, 3 newborn piglets from each litter were randomly selected and euthanatized prior to suckling. Samples of the mesenteric lymph nodes, spleens, kidneys, hearts and lungs were collected for PCR, histopathological and immunohistochemical assays...
September 1, 2016: Polish Journal of Veterinary Sciences
Jorge Mejia, Ana Claudia Camargo Miranda, Ana Claudia Ranucci Durante, Larissa Rolim de Oliveira, Marycel Rosa Felisa Figols de Barboza, Katerin Taboada Rosell, Daniele Pereira Jardim, Alexandre Holthausen Campos, Marilia Alves Dos Reis, Marcela Forli Catanoso, Orfa Yineth Galvis-Alonso, Francisco Romero Cabral
Objective: To present the result of upgrading a clinical gamma-camera to be used to obtain in vivo tomographic images of small animal organs, and its application to register cardiac, renal and neurological images. Methods: An updated version of the miniSPECT upgrading device was built, which is composed of mechanical, electronic and software subsystems. The device was attached to a Discovery VH (General Electric Healthcare) gamma-camera, which was retired from the clinical service and installed at the Centro de Imagem Pré-Clínica of the Hospital Israelita Albert Einstein...
July 2016: Einstein
Hyun Min Kim, Jong-Mi Seong, Jaetaek Kim
The objective of this study was to carry out a large population-based study to understand the factors associated with hypoglycemia-related hospitalizations among older Korean adults with diabetes mellitus.This study analyzed data from a subset of the 2013 Health Insurance and Review and Assessment service-Adult Patient Sample. A total of 307,170 subjects, comprising 41.7% men and 58.3% women, had diabetes mellitus. Hypertension (80.8%) was the most common comorbidity, and dyslipidemia (59.0%) and ischemic heart disease (21...
October 2016: Medicine (Baltimore)
Amy E Burchell, Jonathan C L Rodrigues, Max Charalambos, Laura E K Ratcliffe, Emma C Hart, Julian F R Paton, Andreas Baumbach, Nathan E Manghat, Angus K Nightingale
European guidelines recommend that patients with hypertension be assessed for asymptomatic organ damage and secondary causes. The authors propose that a single magnetic resonance imaging (MRI) scan can provide comprehensive first-line imaging of patients assessed via a specialist hypertension clinic. A total of 200 patients (56% male, aged 51±15 years, office BP 168±30/96±16 mm Hg) underwent MRI of the heart, kidneys, renal arteries, adrenals and aorta. Comparisons were made with other imaging modalities where available...
October 19, 2016: Journal of Clinical Hypertension
Norma Alva, Ronald Alva, Teresa Carbonell
In clinical and experimental settings, a great deal of effort is being made to protect cells and tissues against harmful conditions and to facilitate metabolic recovery following these insults. Much of the recent attention has focused on the protective role of a natural form of sugar, fructose 1,6-bisphosphate (F16bP). F16bP is a high-energy glycolytic intermediate that has been shown to exert a protective action in different cell types and tissues (including the brain, kidney, intestine, liver and heart) against various harmful conditions...
October 14, 2016: Current Medicinal Chemistry
Masato Nishimura, Toshiko Tokoro, Satoru Yamazaki, Tetsuya Hashimoto, Hiroyuki Kobayashi, Toshihiko Ono
BACKGROUND: We examined the prevalence, prognosis, and effect of endothelin receptor antagonists on survival in end-stage kidney disease patients with idiopathic pre-capillary pulmonary hypertension. METHODS: We investigated 1988 end-stage kidney disease patients in Toujinkai Hospital from January 1, 2001 to December 31, 2014. Pulmonary hypertension was screened by symptoms (dyspnea, hypotension, or near syncope) and echocardiography, and diagnosed by computed tomography with enhancement, pulmonary flow scintigraphy, and right heart catheterization...
October 19, 2016: Clinical and Experimental Nephrology
Tadashi Yoshida, Patrice Delafontaine
Patients with advanced congestive heart failure (CHF) or chronic kidney disease (CKD) often have increased angiotensin II (Ang II) levels and cachexia. We previously demonstrated that Ang II, via its type 1 receptor (AT1R), causes muscle protein breakdown and apoptosis, and inhibits satellite cell (SC) proliferation and muscle regeneration, likely contributing to cachexia in CHF and CKD. In contrast, AT2R expression is robustly induced during SC differentiation and it potentiates muscle regeneration. To understand mechanisms regulating AT2R expression and its potential role in muscle regeneration in chronic diseases we used a mouse model of CHF and found that muscle regeneration was markedly reduced and that this was accompanied by blunted increase of AT2R expression...
October 18, 2016: Journal of Biological Chemistry
Piotr T Filipczak, Cynthia L Thomas, Wenshu Chen, Andrew Salzman, Jacob D McDonald, Yong Lin, Steven A Belinsky
Tuberous sclerosis complex (TSC) is a genetic multi-organ disorder characterized by the development of neoplastic lesions in kidney, lung, brain, heart and skin. It is caused by an inactivating mutation in tumor suppressor genes coding the TSC1/TSC2 complex, resulting in hyperactivation of mTOR- and Raf/MEK/MAPK-dependent signaling that stimulates tumor cell proliferation and metastasis. Despite its oncogenic effect, cells with TSC deficiency were more sensitive to oxidative stress and dependent on mitochondrial metabolism, providing a rationale for a new therapeutic approach...
October 18, 2016: Cancer Research
Takashi Kodama, Takahiro Tsukimura, Ikuo Kawashima, Atsuko Sato, Hitoshi Sakuraba, Tadayasu Togawa
In Fabry disease, large amounts of globotriaosylceramide (Gb3) and related glycosphingolipids accumulate in organs due to a deficiency of α-galactosidase A (GLA) activity. Enzyme replacement therapy (ERT) with recombinant GLA is now available, and it has been reported that ERT is beneficial for patients with Fabry disease, especially those who start treatment at an early stage of the disease. However, it seems that the efficacy of ERT differs with each organ, and Gb3 accumulated in the kidneys shows resistance to ERT when it is started at a late stage...
October 12, 2016: Molecular Genetics and Metabolism
M Namdari, A Eatemadi, B Negahdari
Brain natriuretic peptide (BNP), also known as a B-type natriuretic peptide, is one of the important biomarkers with a proven role in the diagnosis of congestive heart failure (CHF). Researchers from the different clinical field have researched into the performance features of BNP testing in the acute care set-up to assist and improve in diagnosing CHF and in predicting future morbidity and mortality rates. The potency of BNP has also been researched into in cases like myocardial ischemia and infarction, cor pulmonale, and acute pulmonary embolism (PE)...
September 30, 2016: Cellular and Molecular Biology
Keisuke Shinohara, Xuebo Liu, Donald A Morgan, Deborah R Davis, Maria Luisa S Sequeira-Lopez, Martin D Cassell, Justin L Grobe, Kamal Rahmouni, Curt D Sigmund
The renin-angiotensin system (RAS) in the brain is a critical determinant of blood pressure, but the mechanisms regulating RAS activity in the brain remain unclear. Expression of brain renin (renin-b) occurs from an alternative promoter-first exon. The predicted translation product is a nonsecreted enzymatically active renin whose function is unknown. We generated a unique mouse model by selectively ablating the brain-specific isoform of renin (renin-b) while preserving the expression and function of the classical isoform expressed in the kidney (renin-a)...
October 17, 2016: Hypertension
James Scholey
The classical view of the RAS is a linear signaling pathway beginning with the conversion of angiotensinogen to ANG I by renin, an enzyme secreted by the kidney. ANG I is converted to ANG II by angiotensin converting enzyme (ACE) ANG II binds to the G-protein coupled angiotensin II receptor type 1. The RAS is a circulating system but we now know that the RAS is also locally expressed in a number of tissues, including the kidneys and the heart. ANG II exerts adverse hemodynamic and non-hemodynamic effects on renal cells...
September 2016: Journal of Hypertension
Junichiro Hashimoto
Arterial structure and function change progressively with advancing age. Owing to long-lasting repetitive stretch with intermittent cardiac contraction, elastic fibers in the tunica media of large arteries gradually degenerate and are replaced by collagenous fibers. Such medial degeneration causes elastic arteries to stiffen and dilate. However, the speed of the vascular aging varies considerably among individuals; a discrepancy often exists between the chronological age of an individual and the biological age of his or her arteries...
September 2016: Journal of Hypertension
Sheila Patel, Elena Velkoska, Louise Burrell
OBJECTIVE: Left ventricular hypertrophy (LVH) is prevalent in chronic kidney disease (CKD) and a major cause of cardiovascular morbidity and mortality. Treatment of LVH in CKD is based on blood pressure control. The Kruppel like factor 15 (KLF15) is expressed in the heart and acts as a repressor of cardiac hypertrophy and fibrosis. The role of cardiac KLF15 in the development of LVH in rats with CKD secondary to subtotal nephrectomy (STNx) or the effects of ACE inhibition on KLF15 levels has not been addressed previously...
September 2016: Journal of Hypertension
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