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Reversing heart disease

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https://www.readbyqxmd.com/read/28453658/androgen-receptor-agonists-increase-lean-mass-improve-cardiopulmonary-functions-and-extend-survival-in-preclinical-models-of-duchenne-muscular-dystrophy
#1
Suriyan Ponnusamy, Ryan D Sullivan, Dahui You, Nadeem Zafar, Chuan He Yang, Thirumagal Thiyagarajan, Daniel L Johnson, Maron L Barrett, Nikki J Koehler, Mayra Star, Erin J Stephenson, Dave Bridges, Stephania A Cormier, Lawrence M Pfeffer, Ramesh Narayanan
Duchenne muscular dystrophy (DMD) is a neuromuscular disease that predominantly affects boys as a result of mutation(s) in the dystrophin gene. DMD is characterized by musculoskeletal and cardiopulmonary complications, resulting in shorter life-span. Boys afflicted by DMD typically exhibit symptoms within 3-5 years of age and declining physical functions before attaining puberty. We hypothesized that rapidly deteriorating health of pre-pubertal boys with DMD could be due to diminished anabolic actions of androgens in muscle, and that intervention with an androgen receptor (AR) agonist will reverse musculoskeletal complications and extend survival...
April 27, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28448199/deferiprone-for-the-treatment-of-transfusional-iron-overload-in-thalassemia
#2
Janet L Kwiatkowski, Ami Belmont
Transfusional iron overload can lead to hepatic fibrosis, arrhythmias and congestive heart failure and a number of endocrinopathies. Deferiprone is an oral iron chelator recently approved for use in the United States as a second line agent for the treatment of transfusional iron overload in patients with thalassemia. Areas covered: This article will review the data regarding the efficacy of deferiprone for iron chelation and prevention and reversal of iron related complications, the drug's adverse effect profile, and the use of this drug in combination regimens...
April 27, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28448010/murine-left-anterior-descending-lad-coronary-artery-ligation-an-improved-and-simplified-model-for-myocardial-infarction
#3
Karla Reichert, Bonnie Colantuono, Isabella McCormack, Fernanda Rodrigues, Vasile Pavlov, M Ruhul Abid
Ischemic heart disease (IHD), or acute coronary syndrome (ACS), is one of the leading causes of death in the United States. IHD is characterized by reduced blood supply to the heart, resulting in the loss of oxygen to and the ensuing necrosis of the heart muscle. The MI model has gained popularity for its use as a short-term ischemia-reperfusion model and a long-term permanent ligation model. Below, we describe a reliable method for the permanent ligation of the LAD. With mouse genetic engineering technology becoming more advanced, and with an increasing availability of quality murine surgical instruments, the mouse has become a popular model for MI surgeries...
April 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447104/bmp-type-ii-receptor-as-a-therapeutic-target-in-pulmonary-arterial-hypertension
#4
REVIEW
Mar Orriols, Maria Catalina Gomez-Puerto, Peter Ten Dijke
Pulmonary arterial hypertension (PAH) is a chronic disease characterized by a progressive elevation in mean pulmonary arterial pressure. This occurs due to abnormal remodeling of small peripheral lung vasculature resulting in progressive occlusion of the artery lumen that eventually causes right heart failure and death. The most common cause of PAH is inactivating mutations in the gene encoding a bone morphogenetic protein type II receptor (BMPRII). Current therapeutic options for PAH are limited and focused mainly on reversal of pulmonary vasoconstriction and proliferation of vascular cells...
April 26, 2017: Cellular and Molecular Life Sciences: CMLS
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/28440427/downregulation-of-mir-200c-protects-cardiomyocytes-from-hypoxia-induced-apoptosis-by-targeting-gata-4
#6
Zhigang Chen, Shaoli Zhang, Changlei Guo, Jianhua Li, Wenfeng Sang
Hypoxia-induced cardiomyocyte apoptosis plays an important role in the development of ischemic heart disease. MicroRNAs (miRNAs or miRs) are emerging as critical regulators of hypoxia-induced cardiomyocyte apoptosis. miR-200c is an miRNA that has been reported to be related to apoptosis in various pathological processes; however, its role in hypoxia‑induced cardiomyocyte apoptosis remains unclear. In the present study, we aimed to investigate the potential role and underlying mechanism of miR-200c in regulating hypoxia‑induced cardiomyocyte apoptosis...
April 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28439569/the-obesity-paradox-in-kidney-disease-how-to-reconcile-it-with-obesity-management
#7
Kamyar Kalantar-Zadeh, Connie M Rhee, Jason Chou, S Foad Ahmadi, Jongha Park, Joline Lt Chen, Alpesh N Amin
Obesity, a risk factor for de novo chronic kidney disease (CKD), confers survival advantages in advanced CKD. This so-called obesity paradox is the archetype of the reverse epidemiology of cardiovascular risks, in addition to the lipid, blood pressure, adiponectin, homocysteine, and uric acid paradoxes. These paradoxical phenomena are in sharp contradistinction to the known epidemiology of cardiovascular risks in the general population. In addition to advanced CKD, the obesity paradox has also been observed in heart failure, chronic obstructive lung disease, liver cirrhosis, and metastatic cancer, as well as in the elderly...
March 2017: KI Reports
https://www.readbyqxmd.com/read/28438901/systolic-blood-pressure-and-vascular-disease-in-men-aged-65-years-and-over-the-hims-health-in-men-study
#8
Ben Lacey, Jonathan Golledge, Bu B Yeap, Sarah Lewington, Kieran A McCaul, Paul E Norman, Leon Flicker, Osvaldo P Almeida, Graeme J Hankey
There is uncertainty about the relation between blood pressure and vascular disease at older age. We assessed the association of systolic blood pressure (SBP) and major vascular events in a prospective cohort study of 7564 men aged 65 to 94 years, recruited in 1996-1999 from the general population in Perth, Western Australia. SBP was measured at baseline and again at resurvey in 2001-2004. Participants were monitored for fatal and nonfatal vascular events. To limit the effect of reverse causality, analyses were restricted to men without previous vascular disease at baseline...
April 24, 2017: Hypertension
https://www.readbyqxmd.com/read/28437282/inhibition-of-mid-chain-hetes-protects-against-angiotensin-ii-induced-cardiac-hypertrophy
#9
Samya Elkhatali, Zaid H Maayah, Ahmed A El-Sherbeni, Osama H Elshenawy, Ghada Abdelhamid, Sherif M Shoieb, Ayman O S El-Kadi
Recent data demonstrated the role of CYP1B1 in cardiovascular disease. It was, therefore, necessary to examine whether the inhibition of CYP1B1 and hence inhibiting the formation of its metabolites, using 2,4,3',5'-tetramethoxystilbene (TMS), would have a cardioprotective effect against angiotensin II (Ang II)-induced cardiac hypertrophy. For this purpose, male Sprague-Dawley rats were treated with Ang II with or without TMS (300 μg/kg every 3day3 i.p). Thereafter, cardiac hypertrophy and the formation of mid-chain HETEs and AA were assessed...
April 18, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28433665/advancing-the-science-of-myocardial-recovery-with-mechanical-circulatory-support-a-working-group-of-the-national-heart-lung-and-blood-institute
#10
Stavros G Drakos, Francis D Pagani, Martha S Lundberg, J Timothy Baldwin
The medical burden of heart failure (HF) has spurred interest in clinicians and scientists to develop therapies to restore the function of a failing heart. To advance this agenda, the National Heart Lung Blood Institute (NHLBI) convened a Working Group of experts on June 2-3, 2016 in Bethesda Maryland to develop recommendations for the NHLBI aimed at advancing the science of cardiac recovery in the setting of mechanical circulatory support (MCS). MSC devices effectively reduce volume and pressure overload that drives the cycle of progressive myocardial dysfunction, thereby triggering structural and functional reverse remodeling...
April 19, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28426524/beyond-cascade-screening-detection-of-familial-hypercholesterolaemia-at-childhood-immunization-and-other-strategies
#11
Andrew C Martin, Damon A Bell, Tom Brett, Gerald F Watts
PURPOSE OF REVIEW: Familial hypercholesterolaemia is a common genetic disorder that accelerates premature coronary heart disease. Although effective treatments are available, the majority of individuals remain undiagnosed. We review new evidence for improving the detection of familial hypercholesterolaemia. RECENT FINDINGS: Recent studies have demonstrated that universal screening of children for familial hypercholesterolaemia may be highly effective at the time of immunization if combined with reverse cascade testing of adult family members, who have a more immediate risk of a coronary event...
April 19, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28424250/unifying-mechanism-for-different-fibrotic-diseases
#12
Gerlinde Wernig, Shih-Yu Chen, Lu Cui, Camille Van Neste, Jonathan M Tsai, Neeraja Kambham, Hannes Vogel, Yaso Natkunam, D Gary Gilliland, Garry Nolan, Irving L Weissman
Fibrotic diseases are not well-understood. They represent a number of different diseases that are characterized by the development of severe organ fibrosis without any obvious cause, such as the devastating diseases idiopathic pulmonary fibrosis (IPF) and scleroderma. These diseases have a poor prognosis comparable with endstage cancer and are uncurable. Given the phenotypic differences, it was assumed that the different fibrotic diseases also have different pathomechanisms. Here, we demonstrate that many endstage fibrotic diseases, including IPF; scleroderma; myelofibrosis; kidney-, pancreas-, and heart-fibrosis; and nonalcoholic steatohepatosis converge in the activation of the AP1 transcription factor c-JUN in the pathologic fibroblasts...
April 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28423616/suppression-of-microrna-16-protects-against-acute-myocardial-infarction-by-reversing-beta2-adrenergic-receptor-down-regulation-in-rats
#13
Jiaqi Liu, Fei Sun, Yuying Wang, Wanqi Yang, Hongwen Xiao, Yue Zhang, Renzhong Lu, Haixia Zhu, Yuting Zhuang, Zhenwei Pan, Zhiguo Wang, Zhimin Du, Yanjie Lu
microRNA-16 (miR-16) has been shown to be up-regulated in ischemic heart. Beta2-adrenoreceptor (β2-AR) exerts cardioprotective property in ischemic injury. This study aims to determine the effect of miR-16 in cardiac injury in rats and the possible involvement of β2-AR in this process. Acute myocardial infarction (AMI) model in rats was induced by ligation of left coronary artery. Neonatal rat ventricular cells (NRVCs) were cultured in vitro tests. The cardiomyocyte model of oxidative injury was mimicked by hydrogen peroxide...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423126/chronic-atrial-fibrillation-ablation-with-harmonic-scalpel-during-mitral-valve-surgery
#14
Alexandre Visconti Brick, Domingo M Braile
Objective: To evaluate surgical treatment of chronic atrial fibrillation with ultrasound in patients with mitral valve disease, considering preoperative clinical characteristics of patients undergoing surgical procedure and follow-up in the immediate postoperative period, in hospital and up to 60 months after discharge. Methods: We studied 100 patients with chronic atrial fibrillation and mitral valve disease who underwent surgical treatment using ultrasound ablation...
January 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28420383/ppbp-and-defa1-defa3-genes-in-hyperlipidaemia-as-feasible-synergistic-inflammatory-biomarkers-for-coronary-heart-disease
#15
Yaowapa Maneerat, Kriengchai Prasongsukarn, Surachet Benjathummarak, Wilanee Dechkhajorn
BACKGROUND: Coronary heart disease (CHD) is an important complication of atherosclerosis. Biomarkers, which associate with CHD development, are potential to predict CHD risk. To determine whether genes showing altered expression in hyperlipidaemia (H) and coronary heart disease (CHD) patients compared with controls could be CHD risk biomarkers. METHODS: Control, H, and CHD groups represented atherosclerosis to CHD development. Gene profiling was investigated in peripheral blood mononuclear cells using DNA microarrays...
April 19, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28419739/cardiac-troponin-t-and-fast-skeletal-muscle-denervation-in-ageing
#16
Zherong Xu, Xin Feng, Juan Dong, Zhong-Min Wang, Jingyun Lee, Cristina Furdui, Daniel Clark Files, Kristen M Beavers, Stephen Kritchevsky, Carolanne Milligan, Jian-Ping Jin, Osvaldo Delbono, Tan Zhang
BACKGROUND: Ageing skeletal muscle undergoes chronic denervation, and the neuromuscular junction (NMJ), the key structure that connects motor neuron nerves with muscle cells, shows increased defects with ageing. Previous studies in various species have shown that with ageing, type II fast-twitch skeletal muscle fibres show more atrophy and NMJ deterioration than type I slow-twitch fibres. However, how this process is regulated is largely unknown. A better understanding of the mechanisms regulating skeletal muscle fibre-type specific denervation at the NMJ could be critical to identifying novel treatments for sarcopenia...
April 16, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28416588/association-between-mutation-status-and-left-ventricular-reverse-remodelling-in-dilated-cardiomyopathy
#17
Matteo Dal Ferro, Davide Stolfo, Alessandro Altinier, Marta Gigli, Martina Perrieri, Federica Ramani, Giulia Barbati, Alberto Pivetta, Francesca Brun, Lorenzo Monserrat, Mauro Giacca, Luisa Mestroni, Marco Merlo, Gianfranco Sinagra
OBJECTIVE: To explore the genetic landscape of a well selected dilated cardiomyopathy (DCM) cohort, assessing the possible relation between different genotypes and left ventricular reverse remodelling (LVRR). METHODS: A cohort of 152 patients with DCM from the Heart Muscle Disease Registry of Trieste has been studied by next-generation sequencing (NGS). Patients were grouped into different 'gene-clusters' with functionally homogeneous genetic backgrounds. LVRR was defined by left ventricular ejection fraction normalisation or increase ≥10% associated with normalisation in indexed left ventricular end-diastolic diameter or relative decrease ≥10% at 24 months follow-up...
April 17, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28409410/synergistic-cardioprotective-effects-of-combined-chromium-picolinate-and-atorvastatin-treatment-in-triton-x-100-induced-hyperlipidemia-in-rats-impact-on-some-biochemical-markers
#18
Noha M Shafik, Amal Baalash, Abla M Ebeid
Hyperlipidemia is one of the major risk factors for atherosclerosis and ischemic heart disease. Chromium (Cr) mineral is playing a crucial role in glucose and lipid homeostasis. The aim of this study was to evaluate the protective effects of combined chromium picolinate (CrPic) and atorvastatin treatment against hyperlipidemia-induced cardiac injury. Seventy-five male albino rats were divided into five groups (15 rats each). Hyperlipidemia was induced by intraperitoneal injection of a single dose of Triton X-100 (300 mg/kg body weight (b...
April 13, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28408970/differential-regulation-of-cardiac-function-and-intracardiac-cytokines-by-rapamycin-in-healthy-and-diabetic-rats
#19
Christian Luck, Vincent G DeMarco, Abuzar Mahmood, Madhavi P Gavini, Lakshmi Pulakat
Diabetes is comorbid with cardiovascular disease and impaired immunity. Rapamycin improves cardiac functions and extends lifespan by inhibiting the mechanistic target of rapamycin complex 1 (mTORC1). However, in diabetic murine models, Rapamycin elevates hyperglycemia and reduces longevity. Since Rapamycin is an immunosuppressant, we examined whether Rapamycin (750 μg/kg/day) modulates intracardiac cytokines, which affect the cardiac immune response, and cardiac function in male lean (ZL) and diabetic obese Zucker (ZO) rats...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28407402/cirrhotic-cardiomyopathy-implications-for-liver-transplantation
#20
REVIEW
Hongqun Liu, Saumya Jayakumar, Mouhieddin Traboulsi, Samuel S Lee
The majority of the patients on a waiting list for liver transplantation have end-stage liver disease. Due to the marked peripheral vasodilatation of end stage cirrhosis that masks a latent myocardial dysfunction, cardiac abnormalities in the resting state are usually subclinical and escape the attention of physicians. However, when challenged, the systolic and diastolic contractile responses are attenuated. In addition to these contractile abnormalities, morphological changes such as enlargement or hypertrophy of cardiac chambers and electrophysiological repolarization changes including a prolonged QT interval can be observed...
April 13, 2017: Liver Transplantation
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