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https://www.readbyqxmd.com/read/28550088/cardiac-telomere-length-in-heart-development-function-and-disease
#1
Scott A Booth, Fadi J Charchar
Telomeres are repetitive nucleoprotein structures at chromosome ends and a decrease in the number of these repeats, known as a reduction in telomere length (TL), triggers cellular senescence and apoptosis. Heart disease, the worldwide leading cause of death, often results from the loss of cardiac cells which could be explained by decreases in TL. Due to the cell-specific regulation of TL, this review focuses on studies that have measured telomeres in heart cells and critically assesses the relationship between cardiac TL and heart function...
May 26, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28548989/imaging-adult-patients-with-fontan-circulation
#2
Salil Ginde, Benjamin H Goot, Peter C Frommelt
PURPOSE OF REVIEW: Survival after the Fontan procedure for palliation of single ventricle congenital heart disease has improved. However, adults with Fontan circulation are at risk for several complications including heart failure, thromboembolism, and protein-losing enteropathy. This review discusses the role of noninvasive imaging for surveillance and early detection of anatomic and functional abnormalities of the Fontan circulation that can impact the risk for Fontan failure over time...
May 25, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28545637/preterm-birth-and-risk-of-heart-failure-up%C3%A2-to-early-adulthood
#3
Hanna Carr, Sven Cnattingius, Fredrik Granath, Jonas F Ludvigsson, Anna-Karin Edstedt Bonamy
BACKGROUND: In small clinical studies, preterm birth was associated with altered cardiac structure and increased cardiovascular mortality in the young. OBJECTIVES: The goal of this study was to determine the association between preterm birth and risk of incident heart failure (HF) in children and young adults. METHODS: This register-based cohort study included 2,665,542 individuals born in Sweden from 1987 to 2012 who were followed up from 1 year of age to December 31, 2013...
May 30, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28545369/impact-of-diabetes-on-cardiac-and-vascular-disease-role-of-calcium-signaling
#4
Tarik Smani, Isabel Gallardo-Castillo, Javier Ávila-Médina, Manuel F Jimenez-Navarro, Antonio Ordoñez, Abdelkrim Hmadcha
The pathophysiology linking diabetes and cardiovascular disease (CVD) is complex and multifactorial. The specific type of cardiomyopathy associated with diabetes, known as diabetic cardiomyopathy (DCM), is recognized as asymptomatic progression of structural and functional remodeling in the heart of diabetic patients in the absence of coronary atherosclerosis and hypertension. In other words, the presence of heart disease specifically in diabetic patients is also known as diabetic heart disease. This article reviews the impact of diabetes in heart and vascular beds focusing on molecular mechanisms involving the oxidative stress, the inflammation, the endothelium dysfunction and the alteration of the homeostasis of calcium, among others mechanisms...
May 23, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28544650/diverse-application-of-mri-for-mouse-phenotyping
#5
REVIEW
Yijen L Wu, Cecilia W Lo
Small animal models, particularly mouse models, of human diseases are becoming an indispensable tool for biomedical research. Studies in animal models have provided important insights into the etiology of diseases and accelerated the development of therapeutic strategies. Detailed phenotypic characterization is essential, both for the development of such animal models and mechanistic studies into disease pathogenesis and testing the efficacy of experimental therapeutics. MRI is a versatile and noninvasive imaging modality with excellent penetration depth, tissue coverage, and soft tissue contrast...
May 22, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28544620/phenotyping-cardiac-and-structural-birth-defects-in-fetal-and-newborn-mice
#6
REVIEW
Xiaoqin Liu, Andrew J Kim, William Reynolds, Yijen Wu, Cecilia W Lo
Mouse models are invaluable for investigating the developmental etiology and molecular pathogenesis of structural birth defects. While this has been deployed for studying a wide spectrum of birth defects, mice are particularly valuable for modeling congenital heart disease, given they have the same four-chamber cardiac anatomy as in humans. We have developed the use of noninvasive fetal ultrasound together with micro-computed tomography (micro-CT) imaging for high throughput phenotyping of mice for congenital heart defects (CHD) and other developmental anomalies...
May 22, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28542743/neuroimaging-cardiovascular-physiology-and-functional-outcomes-in-infants-with-congenital-heart-disease
#7
REVIEW
Nathalie H P Claessens, Christopher J Kelly, Serena J Counsell, Manon J N L Benders
This review integrates data on brain dysmaturation and acquired brain injury using fetal and neonatal magnetic resonance imaging (MRI), including the contribution of cardiovascular physiology to differences in brain development, and the relationship between brain abnormalities and subsequent neurological impairments in infants with congenital heart disease (CHD). The antenatal and neonatal period are critical for optimal brain development; the developing brain is particularly vulnerable to haemodynamic disturbances during this time...
May 19, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28542428/age-dependent-electrical-and-morphological-remodeling-of-the-drosophila-heart-caused-by-herg-seizure-mutations
#8
Karen Ocorr, Alexander Zambon, Yoav Nudell, Santiago Pineda, Soda Diop, Min Tang, Takeshi Akasaka, Erika Taylor
Understanding the cellular-molecular substrates of heart disease is key to the development of cardiac specific therapies and to the prevention of off-target effects by non-cardiac targeted drugs. One of the primary targets for therapeutic intervention has been the human ether a go-go (hERG) K+ channel that, together with the KCNQ channel, controls the rate and efficiency of repolarization in human myocardial cells. Neither of these channels plays a major role in adult mouse heart function; however, we show here that the hERG homolog seizure (sei), along with KCNQ, both contribute significantly to adult heart function as they do in humans...
May 19, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28542413/association-of-drinking-pattern-with-risk-of-coronary-heart-disease-incidence-in-the-middle-aged-and-older-chinese-men-results-from-the-dongfeng-tongji-cohort
#9
Yizhi Zhang, Yanqiu Yu, Yu Yuan, Kuai Yu, Handong Yang, Xiulou Li, Xinwen Min, Ce Zhang, Meian He, Xiaomin Zhang, Tangchun Wu
BACKGROUND: Epidemiologic studies have found that moderate alcohol consumption was associated with a decreased risk of coronary heart disease (CHD) incidence. Nevertheless, whether the drinking pattern is associated with CHD incidence still remains inconclusive. METHODS: We included 8,469 Chinese men aged 45-81 years, who were free of CHD, stroke, or cancer at baseline from Dongfeng-Tongji cohort. A semi-structured questionnaire was used to collect information on alcohol consumption and other covariates...
2017: PloS One
https://www.readbyqxmd.com/read/28540402/a-qualitative-evaluation-of-breast-cancer-survivors-acceptance-of-and-preferences-for-consumer-wearable-technology-activity-trackers
#10
Nga H Nguyen, Nyssa T Hadgraft, Melissa M Moore, Dori E Rosenberg, Chris Lynch, Marina M Reeves, Brigid M Lynch
BACKGROUND: Physical inactivity and sedentary behaviour are common amongst breast cancer survivors. These behaviours are associated with an increased risk of comorbidities such as heart disease, diabetes and other cancers. Commercially available, wearable activity trackers (WATs) have potential utility as behavioural interventions to increase physical activity and reduce sedentary behaviour within this population. PURPOSE: The purpose of the study is to explore the acceptability and usability of consumer WAT amongst postmenopausal breast cancer survivors...
May 24, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28540202/role-of-imaging-in-the-evaluation-of-renal-dysfunction-in-heart-failure-patients
#11
REVIEW
Dario Grande, Paola Terlizzese, Massimo Iacoviello
Heart failure and kidney disease share common pathophysiological pathways which can lead to mutual dysfunction, known as cardiorenal syndrome. In heart failure patients, renal impairment is related to hemodynamic and non-hemodynamic factors. Both decreased renal blood flow and renal venous congestion due to heart failure could lead to impaired renal function. Kidney disease and worsening renal function are independently associated with poor prognosis in heart failure patients, both in acute and chronic clinical settings...
May 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28540070/an-update-on-intraoperative-three-dimensional-transesophageal-echocardiography
#12
REVIEW
Lisa Qia Rong
Transesophageal echocardiography (TEE) was first used routinely in the operating rooms in the 1980s to facilitate surgical decision-making. Since then, TEE has evolved from the standard two-dimensional (2D) exam to include focused real-time three-dimensional (RT-3D) imaging both inside and outside the operating rooms. Improved spatial and temporal resolution due to technological advances has expedited surgical interventions in diseased valves. 3D imaging has also emerged as a crucial adjunct in percutaneous interventions for structural heart disease...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28539746/protective-effect-of-sorrel-extract-on-adult-rats-treated-by-carbon-tetrachloride
#13
Abdullah Glil Alkushi
CONTEXT: Heart, kidneys, and liver are the vital organs present in vertebrates and some other animals. They have a wide range of functions, such as maintaining homeostasis, detoxification, protein synthesis, and production of biochemical, that are necessary for digestion and maintaining circulation. These organs are necessary for the survival, and currently, there are no means to compensate for the absence of their functionalities in a long term. The damage of liver can affect other vital organs, including kidneys and heart...
April 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28539561/predictors-of-mortality-rehospitalization-for-syncope-and-cardiovascular-events-in-patients-with-cardiovascular-syncope
#14
Tatsuya Onuki, Makoto Shoji, Yuya Nakamura, Ko Ogawa, Akinori Ochi, Koichiro Inokuchi, Shiro Kawasaki, Yoshimi Onishi, Yoshimasa Onuma, Yumi Munetsugu, Miwa Kikuchi, Hiroyuki Ito, Yoshino Minoura, Norikazu Watanabe, Taro Adachi, Mitsuharu Kawamura, Taku Asano, Kaoru Tanno, Youichi Kobayashi
BACKGROUND: Predictors of poor outcomes remain unknown for cardiovascular syncope patients after discharge.Methods and Results:We reviewed the medical records of consecutive patients admitted to hospital with cardiovascular syncope. We then performed Cox stepwise logistic regression analysis to identify significant independent factors for death, rehospitalization for syncope, and cardiovascular events. The study group was 206 patients with cardiovascular syncope. Of them, bradycardia was diagnosed in 50%, tachycardia in 27%, and structural disease in 23%...
May 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28538087/total-brain-and-hippocampal-volumes-and-cognition-in-older-american-indians-the-strong-heart-study
#15
Brenna Cholerton, Adam Omidpanah, Tara M Madhyastha, Thomas J Grabowski, Astrid M Suchy-Dicey, Dean K Shibata, Lonnie A Nelson, Steven P Verney, Barbara V Howard, William T Longstreth, Thomas J Montine, Dedra Buchwald
BACKGROUND: Estimates of hippocampal volume by magnetic resonance imaging have clinical and cognitive correlations and can assist in early Alzheimer disease diagnosis. However, little is known about the relationship between global or regional brain volumes and cognitive test performance in American Indians. MATERIALS AND METHODS: American Indian participants (N=698; median age, 72 y) recruited for the Cerebrovascular Disease and its Consequences in American Indians study, an ancillary study of the Strong Heart Study cohort, were enrolled...
April 2017: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/28537000/advances-in-clinical-cardiology-2016-a-summary-of-the-key-clinical-trials
#16
REVIEW
Alastair Gray, Conor McQuillan, Ian B A Menown
INTRODUCTION: The findings of many new cardiology clinical trials over the last year have been published or presented at major international meetings. This paper aims to describe and place in context a summary of the key clinical trials in cardiology presented between January and December 2016. METHODS: The authors reviewed clinical trials presented at major cardiology conferences during 2016 including the American College of Cardiology (ACC), European Association for Percutaneous Cardiovascular Interventions (EuroPCR), European Society of Cardiology (ESC), European Association for the Study of Diabetes (EASD), Transcatheter Cardiovascular Therapeutics (TCT), and the American Heart Association (AHA)...
May 23, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28536682/a-case-of-intramural-coronary-amyloidosis-associated-with-hemodialysis
#17
Faisal M Huq Ronny, George Kleinman, Paul James Kurtin, John Thomas Fallon
Dialysis-related amyloidosis predominantly occurs in osteo-articular structures and dialysis-related amyloid (DRA) substances also deposit in extra-articular tissues. Clinical manifestations of DRA include odynophagia, gastrointestinal hemorrhage, intestinal obstruction, kidney stones, myocardial dysfunction, and subcutaneous tumors. The pathological characteristics of DRA in the heart of hemodialysis patients have rarely been reported. We report the case of a 73-year-old female with a history of cerebral palsy and end-stage renal disease status post two failed renal transplants who had been on hemodialysis for 30 years...
January 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28536668/brugada-syndrome-in-a-patient-with-vascular-ehlers-danlos-syndrome-sudden-death-risk-amplified
#18
Jason D'Souza, Divyanshu Malhotra, Aditya Goud, Chanukya Dahagam, George Everett
The vast majority of sudden cardiac arrests occur in patients with structural heart disease and in approximately 10% of the cases, it can occur in those with structurally normal hearts. Brugada syndrome is an autosomal dominant sodium channelopathy that has been implicated in sudden deaths. Given their low prevalence, our knowledge about Brugada syndrome is still evolving. Apart from schizophrenia, there have been no reports of associated medical conditions. We recently encountered a patient with vascular Ehlers-Danlos syndrome who was also found to have Brugada syndrome...
April 19, 2017: Curēus
https://www.readbyqxmd.com/read/28536002/actual-management-and-prognosis-of-severe-isolated-tricuspid-regurgitation-associated-with-atrial-fibrillation-without-structural-heart-disease
#19
Yusuke Takahashi, Chisato Izumi, Makoto Miyake, Miyako Imanaka, Maiko Kuroda, Shunsuke Nishimura, Yusuke Yoshikawa, Masashi Amano, Sari Imamura, Naoaki Onishi, Yodo Tamaki, Soichiro Enomoto, Toshihiro Tamura, Hirokazu Kondo, Kazuaki Kaitani, Yoshihisa Nakagawa
BACKGROUND: Patients with atrial fibrillation (AF) without structural heart diseases can show severe tricuspid regurgitation (TR), especially among aged people. The aim of this study was to clarify the actual management, prognosis, and prognostic factors for severe isolated TR associated with AF without structural heart diseases. METHODS AND RESULTS: We retrospectively investigated actual management in 178 consecutive patients with severe isolated TR associated with AF between 1999 and 2011 in our institution...
May 11, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28535045/bet-bromodomain-inhibitors-with-one-step-synthesis-discovered-from-virtual-screen
#20
Alex M Ayoub, Laura M L Hawk, Ryan J Herzig, Jiewei Jiang, Andrea J Wisniewski, Clifford T Gee, Peiliang Zhao, Jin-Yi Zhu, Norbert Berndt, Nana K Offei-Addo, Thomas G Scott, Jun Qi, James E Bradner, Timothy R Ward, Ernst Schönbrunn, Gunda I Georg, William C K Pomerantz
Chemical inhibition of epigenetic regulatory proteins BrdT and Brd4 is emerging as a promising therapeutic strategy in contraception, cancer, and heart disease. We report an easily synthesized dihydropyridopyrmidine pan-BET inhibitor scaffold, which was uncovered via a virtual screen followed by testing in a fluorescence anisotropy assay. Dihydropyridpyimidine 3 was subjected to further characterization and is highly selective for the BET family of bromodomains. Structure-activity relationship data and ligand deconstruction highlight the importance of the substitution of the uracil moiety for potency and selectivity...
May 23, 2017: Journal of Medicinal Chemistry
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