keyword
MENU ▼
Read by QxMD icon Read
search

Cardiac hypertrophy

keyword
https://www.readbyqxmd.com/read/29241069/mir-208a-3p-aggravates-autophagy-through-the-pdcd4-atg5-pathway-in-ang-ii-induced-h9c2-cardiomyoblasts
#1
Li Wang, Nan Ye, Xiaoyu Lian, Fei Peng, Hexi Zhang, Hui Gong
Pathological cardiac hypertrophy is the main determinant of the development of heart failure, for which there is often no effective therapy. The dysregulation of autophagy is implicated in hypertrophy, but the mechanism linking these processes is unclear. In this study, we characterized the regulatory role of miR-208a-3p in autophagy in H9c2 cardiomyoblasts induced by Angiotensin II (Ang II). We found that miR-208a-3p was up-regulated in Ang II-induced H9c2 cardiomyoblasts and in starvation-induced autophagy...
December 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29238726/downregulation-of-profilin-1-expression-attenuates-cardiomyocytes-hypertrophy-and-apoptosis-induced-by-advanced-glycation-end-products-in-h9c2-cells
#2
Dafeng Yang, Ya Wang, Minna Jiang, Xu Deng, Zhifang Pei, Fei Li, Ke Xia, Lingyan Zhu, Tianlun Yang, Meifang Chen
Cardiomyocytes hypertrophy and apoptosis induced by advanced glycation end products (AGEs) is the crucial pathological foundation contributing to the onset and development of diabetic cardiomyopathy (DCM). However, the mechanism remains poorly understood. Here, we report that profilin-1 (PFN-1), a well-known actin-binding protein, serves as a potent regulator in AGEs-induced cardiomyocytes hypertrophy and apoptosis. PFN-1 was upregulated in AGEs-treated H9c2 cells, which was associated with increased cardiomyocytes hypertrophy and apoptosis...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29237767/a-new-method-to-characterize-function-of-the-drosophila-heart-by-means-of-optical-flow
#3
Hauke Mönck, David Toppe, Eva Michael, Stephan Sigrist, Vincent Richter, Diana Hilpert, Davide Raccuglia, Marina Efetova, Martin Schwärzel
The minuteness of Drosophila poses a challenge to quantify performance of its tubular heart and computer-aided analysis of its beating heart has evolved as a resilient compromise between instrumental costs and data robustness. Here, we introduce an optical flow algorithm (OFA) that continuously registers coherent movement within videos of the beating Drosophila heart and uses this information to subscribe the time course of observation with characteristic phases of cardiac contraction or relaxation. We report that the OFA combines high discriminatory power with robustness to characterize the performance of the Drosophila tubular heart using indicators from human cardiology...
December 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29234485/regulation-of-sirtuin-mediated-protein-deacetylation-by-cardioprotective-phytochemicals
#4
REVIEW
Niria Treviño-Saldaña, Gerardo García-Rivas
Modulation of posttranslational modifications (PTMs), such as protein acetylation, is considered a novel therapeutic strategy to combat the development and progression of cardiovascular diseases. Protein hyperacetylation is associated with the development of numerous cardiovascular diseases, including atherosclerosis, hypertension, cardiac hypertrophy, and heart failure. In addition, decreased expression and activity of the deacetylases Sirt1, Sirt3, and Sirt6 have been linked to the development and progression of cardiac dysfunction...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29234388/the-effects-of-aqueous-extract-from-nardostachys-chinensis-batalin-on-blood-pressure-and-cardiac-hypertrophy-in-two-kidney-one-clip-hypertensive-rats
#5
Rayile Aisa, Zhaoxia Yu, Xiangyang Zhang, Dilinuer Maimaitiyiming, Lipeng Huang, Ayshamgul Hasim, Tao Jiang, Mingjun Duan
Aims: The aim of this study was to investigate the effects of the aqueous extract of Nardostachys chinensis Batalin (NCBAE) on blood pressure and cardiac hypertrophy using two-kidney one-clip (2K1C) hypertensive rats. Methods: 2K1C rat models were set up by clipping the left renal artery. Sham-operated rats underwent the same surgical procedure except for renal arterial clipping. 2K1C hypertensive rats were orally given NCBAE at doses of 210, 420, and 630 mg·kg-1·d-1 for 6 weeks...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234360/apoptosis-and-remodeling-in-adriamycin-induced-cardiomyopathy-rat-model
#6
Young Mi Hong, Hyeryon Lee, Min-Sun Cho, Kwan Chang Kim
Purpose: The mechanism for the pathogenesis of adriamycin (ADR)-induced cardiomyopathy is not yet known. Different hypotheses include the production of free radicals, an interaction between ADR and nuclear components, and a disruption in cardiac-specific gene expression. Apoptosis has also been proposed as being involved in cardiac dysfunction. The purpose of this study was to determine if apoptosis might play a role in ADR-induced cardiomyopathy. Methods: Male Sprague-Dawley rats were separated into 2 groups: the control group (C group) and the experimental group (ADR 5 mg/wk for 3 weeks through intraperitoneal injections; A group)...
November 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/29233823/large-cardiac-muscle-patches-engineered-from-human-induced-pluripotent-stem-cell-derived-cardiac-cells-improve-recovery-from-myocardial-infarction-in-swine
#7
Ling Gao, Zachery R Gregorich, Wuqiang Zhu, Saidulu Mattapally, Yasin Oduk, Xi Lou, Ramaswamy Kannappan, Anton V Borovjagin, Gregory P Walcott, Andrew E Pollard, Vladimir G Fast, Xinyang Hu, Steven G Lloyd, Ying Ge, Jianyi Zhang
Background -Here, we generated human cardiac muscle patches (hCMPs) of clinically relevant dimensions (4 cm × 2 cm × 1.25 mm) by suspending cardiomyocytes, smooth-muscle cells, and endothelial cells that had been differentiated from human induced-pluripotent stem cells (hiPSCs) in a fibrin scaffold and then culturing the construct on a dynamic (rocking) platform. Methods -In vitro assessments of hCMPs suggest maturation in response to dynamic culture stimulation. In vivo assessments were conducted in a porcine model of myocardial infarction (MI)...
December 12, 2017: Circulation
https://www.readbyqxmd.com/read/29233648/left-atrial-dysfunction-in-light-chain-cardiac-amyloidosis-and-hypertrophic-cardiomyopathy-a-comparative-three-dimensional-speckle-tracking-echocardiographic-analysis-from-the-magyar-path-study
#8
Dóra Földeák, Árpád Kormányos, Péter Domsik, Anita Kalapos, Györgyike Á Piros, Nóra Ambrus, Zénó Ajtay, Róbert Sepp, Zita Borbényi, Tamás Forster, Attila Nemes
INTRODUCTION: While cardiac amyloidosis (CA) is a rare systemic disease characterized by extracellular deposition of protein-derived fibrils, hypertrophic cardiomyopathy (HCM) is histopathologically characterized by myocyte hypertrophy and disarray, interstitial fibrosis, and small intramural coronary arteriole dysplasia. The aim of the present study was to compare left atrial (LA) volumetric and functional characteristics between light-chain (AL) CA and HCM by three-dimensional (3D) speckle-tracking echocardiography (STE)...
December 9, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29232407/temporal-changes-in-cardiac-oxidative-stress-inflammation-and-remodeling-induced-by-exercise-in-hypertension-role-for-local-angiotensin-ii-reduction
#9
Sebastião D Silva, Zaira P Jara, Roseli Peres, Larissa S Lima, Cristóforo Scavone, Augusto C Montezano, Rhian M Touyz, Dulce E Casarini, Lisete C Michelini
Exercise training reduces renin-angiotensin system (RAS) activation, decreases plasma and tissue oxidative stress and inflammation in hypertension. However, the temporal nature of these phenomena in response to exercise is unknown. We sought to determine in spontaneously hypertensive rats (SHR) and age-matched WKY controls the weekly effects of training on blood pressure (BP), plasma and left ventricle (LV) Ang II and Ang-(1-7) content (HPLC), LV oxidative stress (DHE staining), gene and protein expression (qPCR and WB) of pro-inflammatory cytokines, antioxidant enzymes and their consequence on hypertension-induced cardiac remodeling...
2017: PloS One
https://www.readbyqxmd.com/read/29232369/accelerated-decline-in-cardiac-stem-cell-efficiency-in-spontaneously-hypertensive-rat-compared-to-normotensive-wistar-rat
#10
Sherin Saheera, Renuka R Nair
Cardiac hypertrophy is recognized as an independent risk factor for cardiac failure. Efficient management of hypertensive heart disease requires identification of factors that can possibly mediate the transition from hypertrophy to failure. Resident cardiac stem cells have a prominent role in the maintenance of cardiac tissue homeostasis. Decline in the proportion of healthy cardiac stem cells (CSCs) can affect tissue regeneration. In pathological conditions, apart from natural aging, an adverse microenvironment can lead to decrease in efficiency of CSCs...
2017: PloS One
https://www.readbyqxmd.com/read/29230843/cardiac-function-in-pediatric-patients-with-congenital-adrenal-hyperplasia-due-to-21-hydroxylase-deficiency
#11
Christiaan F Mooij, Milanthy S Pourier, Gert Weijers, Chris L de Korte, Zina Fejzic, Hedi L Claahsen van der Grinten, Livia Kapusta
BACKGROUND: Hyperandrogenism and exogenous glucocorticoid excess may cause unfavorable changes in the cardiovascular risk profile of patients with congenital adrenal hyperplasia (CAH). OBJECTIVE: To evaluate the cardiac function in pediatric patients with CAH. PATIENTS AND METHODS: 27 pediatric patients with CAH, aged 8-16 years, were evaluated by physical examination, electrocardiogram (ECG), conventional echocardiography, tissue Doppler imaging and two-dimensional (2D) myocardial strain (rate) imaging...
December 11, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29230082/recent-advances-in-adam17-research-a-promising-target-for-cancer-and-inflammation
#12
REVIEW
Marcia L Moss, Dmitry Minond
Since its discovery, ADAM17, also known as TNFα converting enzyme or TACE, is now known to process over 80 different substrates. Many of these substrates are mediators of cancer and inflammation. The field of ADAM metalloproteinases is at a crossroad with many of the new potential therapeutic agents for ADAM17 advancing into the clinic. Researchers have now developed potential drugs for ADAM17 that are selective and do not have the side effects which were seen in earlier chemical entities that targeted this enzyme...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29229612/targeting-tmbim1-alleviates-pathological-cardiac-hypertrophy
#13
Ke-Qiong Deng, Guang-Nian Zhao, Zhihua Wang, Jing Fang, Zhou Jiang, Jun Gong, Feng-Juan Yan, Xue-Yong Zhu, Peng Zhang, Zhi-Gang She, Hongliang Li
Background -Cardiac hypertrophy and its resultant heart failure are among the most common causes of mortality worldwide. Abnormal protein degradation, especially the impaired lysosomal degradation of large organelles and membrane proteins, is involved in the progression of cardiac hypertrophy. However, the underlying mechanisms have not been fully elucidated. Methods -We investigated cardiac TMBIM1 mRNA and protein expression levels in samples from patients with heart failure and mice with aortic banding (AB)-induced cardiac hypertrophy...
December 11, 2017: Circulation
https://www.readbyqxmd.com/read/29227376/hypertensive-heart-disease-beyond-left-ventricular-hypertrophy-are-we-ready-for-echocardiographic-strain-evaluation-in-everyday-clinical-practice
#14
Marijana Tadic, Cesare Cuspidi, Michele Bombelli, Guido Grassi
: Hypertension-induced left ventricular (LV) remodeling is a well known entity that has usually been studied with traditional echocardiographic techniques. In the last decade echocardiographic methods are focused on evaluation of heart mechanics. The strain assessment is considered as part of comprehensive echocardiographic examination. Nevertheless, LV strain and particularly longitudinal strain was proofed as a significant independent predictor of cardiovascular and total morbidity and mortality, stronger than LV ejection fraction...
December 7, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/29226693/higher-pulse-pressure-and-risk-for-cardiovascular-events-in-patients-with-essential-hypertension-the-campania-salute-network
#15
Costantino Mancusi, Maria A Losi, Raffaele Izzo, Grazia Canciello, Maria V Carlino, Giovanni Albano, Nicola De Luca, Bruno Trimarco, Giovanni de Simone
Background Increased pulse pressure is associated with structural target organ damage, especially in elderly patients, increasing cardiovascular risk. Design In this analysis, we investigated whether high pulse pressure retains a prognostic effect also when common markers of target organ damage are taken into account. Methods We analysed an unselected cohort of treated hypertensive patients from the Campania Salute Network registry ( n = 7336). Participants with available cardiac and carotid ultrasound were required to be free of prevalent cardiovascular disease, with ejection fraction ≥50%, and no more than stage III Chronic Kidney Disease...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29225188/rosuvastatin-improves-myocardial-hypertrophy-after-hemodynamic-pressure-overload-via-regulating-the-crosstalk-of-nrf2-are-and-tgf-%C3%AE-smads-pathways-in-rat-heart
#16
Pengbo Wang, Lin Luo, Qiusheng Shen, Gaoyong Shi, Anaz Mohammed, Songshi Ni, Xiang Wu
Left ventricular hypertrophy is more commonly associated with hemodynamic overload imposed by hypertension or volume overload. Transforming growth factor β (TGF-β) is involved in the cardiac hypertrophy and fibrosis of the left ventricle. The fact that TGF-β1 and the nuclear factor erythroid 2-related factor 2 (Nrf2) both become up-regulated upon persistent vessel overload suggests that these two factors may virtually impact on their signaling pathways. In this research, 40 rats were divided into sham group, model group, rosuvastatin low and high dose group...
December 7, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29223733/mitochondrial-pore-opening-and-loss-of-ca2-exchanger-nclx-levels-occur-after-frataxin-depletion
#17
R Purroy, E Britti, F Delaspre, J Tamarit, J Ros
Frataxin-deficient neonatal rat cardiomyocytes and dorsal root ganglia neurons have been used as cell models of Friedreich ataxia. In previous work we show that frataxin depletion resulted in mitochondrial swelling and lipid droplet accumulation in cardiomyocytes, and compromised DRG neurons survival. Now, we show that these cells display reduced levels of the mitochondrial calcium transporter NCLX that can be restored by calcium-chelating agents and by external addition of frataxin fused to TAT peptide. Also, the transcription factor NFAT3, involved in cardiac hypertrophy and apoptosis, becomes activated by dephosphorylation in both cardiomyocytes and DRG neurons...
December 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29221204/11%C3%AE-hsd1-inhibition-ameliorates-diabetes-induced-cardiomyocyte-hypertrophy-and-cardiac-fibrosis-through-modulation-of-egfr-activity
#18
Chunpeng Zou, Weixin Li, Yong Pan, Zia A Khan, Jieli Li, Xixi Wu, Yi Wang, Liancheng Deng, Guang Liang, Yunjie Zhao
11β-HSD1 has been recognized as a potential therapeutic target for type 2 diabetes. Recent studies have shown that hyperglycemia leads to activation of 11β-HSD1, increasing the intracellular glucocorticoid levels. Excess glucocorticoids may lead to the clinical manifestations of cardiac injury. Therefore, the aim of this study is to investigate whether 11β-HSD1 activation contributes to the development of diabetic cardiomyopathy. To investigate the role of 11β-HSD1, we administered a selective 11β-HSD1 inhibitor in type 1 and type 2 murine models of diabetes and in cultured cardiomyocytes...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29218105/systemic-inflammation-is-associated-with-myocardial-fibrosis-diastolic-dysfunction-and-cardiac-hypertrophy-in-patients-with-hypertrophic-cardiomyopathy
#19
Lu Fang, Andris H Ellims, Anna L Beale, Andrew J Taylor, Andrew Murphy, Anthony M Dart
BACKGROUND: Regional or diffuse fibrosis is an early feature of hypertrophic cardiomyopathy (HCM) and is related to poor prognosis. Previous studies have documented low-grade inflammation in HCM. The aim of this study was to examine the relationships between circulating inflammatory markers and myocardial fibrosis, systolic and diastolic dysfunction, and the degree of cardiac hypertrophy in HCM patients. METHODS AND RESULTS: Fifty HCM patients were recruited while 20 healthy subjects served as the control group...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29217642/nicotinamide-riboside-preserves-cardiac-function-in-a-mouse-model-of-dilated-cardiomyopathy
#20
Nicolas Diguet, Samuel A J Trammell, Cynthia Tannous, Robin Deloux, Jérôme Piquereau, Nathalie Mougenot, Anne Gouge, Mélanie Gressette, Boris Manoury, Jocelyne Blanc, Marie Breton, Jean-François Decaux, Gareth Lavery, István Baczkó, Joffrey Zoll, Anne Garnier, Zhenlin Li, Charles Brenner, Mathias Mericskay
Background -Myocardial metabolic impairment is a major feature in chronic heart failure (HF). As the major coenzyme in fuel oxidation and oxidative phosphorylation and a substrate for enzymes signaling energy stress and oxidative stress response, NAD+ is emerging as a metabolic target in a number of diseases including HF. Little is known on mechanisms regulating homeostasis of NAD+ in the failing heart. Methods -To explore possible alterations of NAD+ homeostasis in the failing heart, we quantified expression of NAD+ biosynthetic enzymes in human failing heart and in the heart of a mouse model of dilated cardiomyopathy (DCM) triggered by SRF transcription factor depletion in the heart (SRFHKO) or of cardiac hypertrophy triggered by transverse aorta constriction (TAC)...
December 7, 2017: Circulation
keyword
keyword
9211
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"