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Heart failure, diastolic failure, systolic failure

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https://www.readbyqxmd.com/read/28734932/a-pyridone-derivative-activates-serca2a-by-attenuating-the-inhibitory-effect-of-phospholamban
#1
Manami Kaneko, Hisato Yamamoto, Hiroki Sakai, Yusuke Kamada, Toshiki Tanaka, Shuji Fujiwara, Synsuke Yamamoto, Hiroki Takahagi, Hideyuki Igawa, Shizuo Kasai, Masakuni Noda, Makoto Inui, Tomoyuki Nishimoto
The cardiac sarco/endoplasmic reticulum Ca(2+)-dependent ATPase 2a (SERCA2a) plays a central role in Ca(2+) handling within cardiomyocytes and is negatively regulated by phospholamban (PLN), a sarcoplasmic reticulum (SR) membrane protein. The activation of SERCA2a, which has been reported to improve cardiac dysfunction in heart failure, is a potential therapeutic approach for heart failure. Therefore, we developed a novel small molecule, compound A and characterized it both in vitro and in vivo. Compound A activated the Ca(2+)-dependent ATPase activity of cardiac SR vesicles but not that of skeletal muscle SR vesicles that lack PLN...
July 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28727607/new-onset-heart-failure-and-mortality-in-hospital-survivors-of-sepsis-related-left-ventricular-dysfunction
#2
Saraschandra Vallabhajosyula, Jacob C Jentzer, Jeffrey B Geske, Mukesh Kumar, Ankit Sakhuja, Akhil Singhal, Joseph T Poterucha, Kianoush Kashani, Joseph G Murphy, Ognjen Gajic, Rahul Kashyap
BACKGROUND: The association between new-onset left ventricular (LV) dysfunction during sepsis with long-term heart failure outcomes is lesser understood. METHODS: Retrospective cohort study of all adult patients with severe sepsis and septic shock between 2007 and 2014 that underwent echocardiography within 72 hours admitted to the intensive care unit. Patients with prior heart failure, LV dysfunction, and structural heart disease were excluded. LV systolic dysfunction was defined as LV ejection fraction <50% and LV diastolic dysfunction as ≥grade II...
July 19, 2017: Shock
https://www.readbyqxmd.com/read/28720592/exercise-training-improves-but-does-not-normalize-left-ventricular-systolic-and-diastolic-function-in-adolescents-with-type-1-diabetes
#3
Silmara Gusso, Teresa Pinto, James C Baldi, José G B Derraik, Wayne S Cutfield, Tim Hornung, Paul L Hofman
OBJECTIVE: To determine the impact of 20 weeks of exercise training in aerobic capacity on left ventricular function and glycemic control in adolescents with and without type 1 diabetes. RESEARCH DESIGN AND METHODS: Fifty-three adolescents with type 1 diabetes (aged 15.6 years) were divided into two groups: exercise training (n = 38) and nontraining (n = 15). Twenty-two healthy adolescents without diabetes (aged 16.7 years) were included and, with the 38 participants with type 1 diabetes, participated in a 20-week exercise-training intervention...
July 18, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28720299/cats-with-diabetes-mellitus-have-diastolic-dysfunction-in-the-absence-of-structural-heart-disease
#4
N J Pereira, J Novo Matos, M Baron Toaldo, U Bartoszuk, N Summerfield, A Riederer, C Reusch, T M Glaus
Diabetes mellitus (DM) can result in cardiovascular dysfunction and heart failure characterized by diastolic dysfunction with or without the presence of systolic dysfunction in people and laboratory animals. The objective of this prospective study was to determine if cats with newly diagnosed DM had myocardial dysfunction and, if present, whether it would progress if appropriate antidiabetic therapy was commenced. Thirty-two diabetic cats were enrolled and received baseline echocardiographic examination; of these, 15 cats were re-examined after 6 months...
July 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28717584/pulse-wave-analysis-with-diffusing-wave-spectroscopy
#5
Markus Belau, Wolfgang Scheffer, Georg Maret
Hypertension is a major risk factor for cardiovascular disease and thus at the origin of many deaths by e.g. heart attack or stroke. Hypertension is caused by many factors including an increase in arterial stiffness which leads to changes in pulse wave velocity and wave reflections. Those often result in an increased left ventricular load which may result in heart failure as well as an increased pulsatile pressure in the microcirculation l to damage to blood vessels. In order to specifically treat the different causes of hypertension it is desirable to perform a pulse wave analysis as a complement to measurements of systolic and diastolic pressure by brachial cuff sphygmomanometry...
July 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28702747/management-of-supine-hypertension-complicating-neurogenic-orthostatic-hypotension
#6
Jacquie Baker, Kurt Kimpinski
Neurogenic orthostatic hypotension (NOH) can be present in a number of disorders, including synucleinopathies, autoimmune disorders, and various genetic disorders. All are characterized by defective norepinephrine release from sympathetic terminals upon standing, resulting in impaired vasoconstriction. NOH is defined as a drop in systolic blood pressure ≥20 mmHg or diastolic blood pressure ≥10 mmHg, or both, within 3 minutes of standing or head up-tilt at a minimum of 60°. However, approximately 50% of patients have associated supine hypertension, which greatly complicates treatment...
July 12, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28694395/use-of-tolvaptan-in-patients-hospitalized-for-worsening-chronic-heart-failure-with-severe-hyponatremia-the-initial-experience-at-a-single-center-in-turkey
#7
Saim Sağ, Aysel Aydın Kaderli, Abdülmecit Yıldız, Bülent Cuma Gül, Bülent Özdemir, İbrahim Baran, Sümeyye Güllülü, Ali Aydınlar, Yüksel Çavuşoğlu
OBJECTIVE: The aim of the present study was to assess the efficacy and safety of tolvaptan for severe hyponatremia (SH) in hypervolemic heart failure (HF) patients within daily clinical practice. METHODS: We restrospectively reviewed our database on tolvaptan as an add-on treatment in hypervolemic patients admitted to our clinic due to deterioration of HF and having hyponatremia resistant to standard therapy. Severe hyponatremia was defined as serum sodium concentration ≤125 mEq/L...
July 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28694354/myocardial-upregulation-of-cathepsin-d-by-ischemic-heart-disease-promotes-autophagic-flux-and-protects-against-cardiac-remodeling-and-heart-failure
#8
Penglong Wu, Xun Yuan, Faqian Li, Jianhua Zhang, Wei Zhu, Meng Wei, Jingbo Li, Xuejun Wang
BACKGROUND: Lysosomal dysfunction is implicated in human heart failure for which ischemic heart disease is the leading cause. Altered myocardial expression of CTSD (cathepsin D), a major lysosomal protease, was observed in human heart failure, but its pathophysiological significance has not been determined. METHODS AND RESULTS: Western blot analyses revealed an increase in the precursor but not the mature form of CTSD in myocardial samples from explanted human failing hearts with ischemic heart disease, which is recapitulated in chronic myocardial infarction produced via coronary artery ligation in Ctsd(+/+) but not Ctsd(+/-) mice...
July 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28692525/effect-of-adjuvant-chemotherapy-on-left-ventricular-remodeling-in-women-with-newly-diagnosed-primary-breast-cancer-a-pilot-prospective-longitudinal-cardiac-magnetic-resonance-imaging-study
#9
Erick Avelar, Quynh A Truong, David Inyangetor, Ravi Marfatia, Clifford Yang, Electra Kaloudis, Susan Tannenbaum, Guido Rosito, Sheldon Litwin
PURPOSE: The aim of this study was to assess the left ventricular (LV) remodeling response to chemotherapy in low-cardiac-risk women with newly diagnosed nonmetastatic breast cancer. Cardiotoxic effects of chemotherapy are an increasing concern. To effectively interpret cardiac imaging studies performed for screening purposes in patients undergoing cancer therapy it is necessary to understand the normal changes in structure and function that may occur. METHODS: Twenty women without preexisting cardiovascular disease, of a mean age of 50 years, newly diagnosed with nonmetastatic breast cancer and treated with anthracycline or trastuzumab were prospectively enrolled and evaluated at four time points (at baseline, during chemotherapy, 2 weeks after chemotherapy, and 6 months after chemotherapy) using cardiac magnetic resonance imaging, blood samples, and a clinical questionnaire...
July 7, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28685679/clinical-approach-to-diabetic-cardiomiopathy-a-review-of-human-studies
#10
Roberto Tarquini, Laura Pala, Simona Brancati, Giulia Vannini, Salvatore De Cosmo, Gianluigi Mazzoccoli, Carlo Maria Rotella
BACKGROUND: Diabetic Cardiomiopathy (DC) has been defined as a distinct entity characterized by the presence of diastolic or systolic cardiac dysfunction in a diabetic patient in the absence of other causes for Cardiomiopathy, such as coronary artery disease (CAD), hypertension (HTN), or valvular heart disease. Diabetes affects every organ in the body and cardiovascular disease accounts for two-thirds of the mortality in the diabetic population. Diabetes-related heart disease occurs in the form of coronary artery disease (CAD), cardiac autonomic neuropathy or DC...
July 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28677877/a-phase-2a-dose-escalation-study-of-the-safety-tolerability-pharmacokinetics-and-haemodynamic-effects-of-bms-986231-in-hospitalized-patients-with-heart-failure-with-reduced-ejection-fraction
#11
Cristina Tita, Edward M Gilbert, Adrian B Van Bakel, Jacek Grzybowski, Garrie J Haas, Mohammad Jarrah, Stephanie H Dunlap, Stephen S Gottlieb, Marc Klapholz, Parag C Patel, Roman Pfister, Tim Seidler, Keyur B Shah, Tomasz Zieliński, Robert P Venuti, Douglas Cowart, Shi Yin Foo, Alexander Vishnevsky, Veselin Mitrovic
AIMS: This study was designed to evaluate the safety, tolerability and haemodynamic effects of BMS-986231, a novel second-generation nitroxyl donor with potential inotropic, lusitropic and vasodilatory effects in patients hospitalized with decompensated heart failure and reduced ejection fraction (HFrEF). METHODS AND RESULTS: Forty-six patients hospitalized with decompensated HFrEF were enrolled into four sequential dose-escalation cohorts in this double-blind, randomized, placebo-controlled Phase 2a study...
July 5, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28674618/higher-number-of-live-births-is-associated-with-left-ventricular-diastolic-dysfunction-and-adverse-cardiac-remodelling-among-us-hispanic-latina-women-results-from-the-echocardiographic-study-of-latinos
#12
Shivani R Aggarwal, David M Herrington, Catherine J Vladutiu, Jill C Newman, Katrina Swett, Franklyn Gonzalez, Jorge R Kizer, Michelle A Kominiarek, Karen M Tabb, Linda C Gallo, Gregory A Talavera, Barry E Hurwitz, Carlos J Rodriguez
INTRODUCTION: Female sex is a risk factor for heart failure with preserved ejection fraction (HFpEF). Previous literature suggests that some diastolic dysfunction (DD) develops during pregnancy and may persist postdelivery. Our objective was to examine the relationship between parity and cardiac structure and function in a population-based cohort. METHODS: Participants included 1172 Hispanic/Latina women, aged ≥45 years, enrolled in the Echocardiographic Study of Latinos from four US communities (Bronx, Miami, San Diego and Chicago)...
2017: Open Heart
https://www.readbyqxmd.com/read/28673784/ambulatory-blood-pressure-monitoring-in-heart-failure-and-serum-sodium-levels
#13
Jose Carlos Arévalo-Lorido, Juana Carretero-Gómez, Luis Manzano Espinosa, Javier Sobrino-Martínez, José Luis Arias-Jiménez, Francesc Formiga, Antoni Castro-Salomó, Miguel Camafort Babkowski
AIMS: To determine whether there are differences in blood pressure profile on dynamic assessment by ambulatory blood pressure monitoring (ABPM) according to serum sodium levels in stable heart failure patients. METHODS: Data were collected from the Spanish National Registry on Ambulatory Blood Pressure Monitoring in Heart Failure (DICUMAP). Patients underwent ABPM by the oscillometric principle using a Spacelabs 90121 monitor. The sample was divided into three groups according to sodium levels and their clinical and laboratory data and echocardiographic findings were analyzed...
June 30, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28673246/effects-of-ampd1-gene-c34t-polymorphism-on-cardiac-index-blood-pressure-and-prognosis-in-patients-with-cardiovascular-diseases-a-meta-analysis
#14
Ai-Fang Feng, Zhong-Hui Liu, Shu-Long Zhou, Shi-Yuan Zhao, Yan-Xin Zhu, Huai-Xin Wang
BACKGROUND: The meta-analysis was aimed to evaluate the effects of AMPD1 gene C34T polymorphism on cardiac function indexes, blood pressure and prognosis in patients with cardiovascular diseases (CVD). METHODS: Eligible studies were retrieved through a comprehensive search of electronic databases and manual search. Then the high-quality studies met the rigorous inclusion and exclusion criteria, as well as related to the subject was selected for the study. Comprehensive data analyses were conducted using STATA software 12...
July 3, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28669488/prognostic-significance-of-discharge-hyponatremia-in-heart-failure-patients-with-normal-admission-sodium-from-the-escape-trial
#15
Hesham R Omar, Richard Charnigo, Maya Guglin
Hyponatremia in acute decompensated heart failure (HF) is indicative of a poor prognosis and predicts morbidity and mortality. We explored the predictive utility of hyponatremia at the time of hospital discharge among HF patients with normal admission sodium (Na). Characteristics and outcomes of HF patients enrolled in the Evaluation Study of Congestive Heart Failure and Pulmonary Artery Catheterization Effectiveness trial, who had normal Na on admission, were compared between those who were hyponatremic (Na <135 meq/L) or normonatremic on discharge...
May 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28668140/clinical-features-diagnosis-and-management-of-patients-with-anderson-fabry-cardiomyopathy
#16
REVIEW
Haran Yogasundaram, Daniel Kim, Omar Oudit, Richard B Thompson, Frank Weidemann, Gavin Y Oudit
Anderson-Fabry disease (AFD) is an X-linked recessive, multisystem disease of lysosomal storage. A mutation in the gene encoding the hydrolase enzyme α-galactosidase A results in its deficiency, or complete absence of activity. Subsequent progressive intracellular accumulation of glycosphingolipids, predominantly globotriaosylceramide, in various tissues, results in progressive organ dysfunction and failure, most commonly affecting the kidneys, nervous system, skin, eyes, vascular endothelium, and the heart...
July 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28643891/direct-comparison-of-high-temporal-resolution-cine-mri-with-doppler-ultrasound-for-assessment-of-diastolic-dysfunction-in-mice
#17
Thomas A Roberts, Anthony N Price, Laurence H Jackson, Valerie Taylor, Anna L David, Mark F Lythgoe, Daniel J Stuckey
Diastolic dysfunction is a sensitive early indicator of heart failure and can provide additional data to conventional measures of systolic function. Transmitral Doppler ultrasound, which measures the one-dimensional flow of blood through the mitral valve, is currently the preferred method for the measurement of diastolic function, but the measurement of the left ventricular volume changes using high-temporal-resolution cinematic magnetic resonance imaging (CINE MRI) is an alternative approach which is emerging as a potentially more robust and user-independent technique...
June 23, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28643218/empagliflozin-improves-left-ventricular-diastolic-dysfunction-in-a-genetic-model-of-type-2-diabetes
#18
Nadjib Hammoudi, Dongtak Jeong, Rajvir Singh, Ahmed Farhat, Michel Komajda, Eric Mayoux, Roger Hajjar, Djamel Lebeche
PURPOSE: Cardiovascular (CV) diseases in type 2 diabetes (T2DM) represent an enormous burden with high mortality and morbidity. Sodium-glucose cotransporter 2 (SGLT2) inhibitors have recently emerged as a new antidiabetic class that improves glucose control, as well as body weight and blood pressure with no increased risk of hypoglycemia. The first CV outcome study terminated with empagliflozin, a specific SGLT2 inhibitor, has shown a reduction in CV mortality and in heart failure hospitalization, suggesting a beneficial impact on cardiac function which remains to be demonstrated...
June 22, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28641397/myocardial-scar-location-as-detected-by-cardiac-magnetic-resonance-is-associated-with-the-outcome-in-heart-failure-patients-undergoing-surgical-ventricular-reconstruction
#19
Serenella Castelvecchio, Giulia Careri, Federico Ambrogi, Antonia Camporeale, Lorenzo Menicanti, Francesco Secchi, Massimo Lombardi
OBJECTIVES: Post-infarction myocardial scar causes adverse left ventricular remodelling and negatively affects the prognosis. We sought to investigate whether scar extent and location obtained by cardiac magnetic resonance may affect the reverse remodelling and survival of heart failure patients undergoing surgical ventricular reconstruction. METHODS: From January 2011 to December 2015, 151 consecutive patients with previous myocardial infarction and left ventricular remodelling underwent surgical ventricular reconstruction at our Institution, of which 88 (58%) patients had a preoperative protocol-standardized late gadolinium enhancement (LGE)-cardiac magnetic resonance examination during the week before surgery...
June 21, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28638961/evaluation-of-systolic-and-diastolic-properties-of-hypertensive-heart-failure-using-speckle-tracking-echocardiography-with-high-volume-rates
#20
Shingo Minatoguchi, Masanori Kawasaki, Ryuhei Tanaka, Takashi Yoshizane, Koji Ono, Maki Saeki, Maki Nagaya, Hidemaro Sato, Kazuhiko Nishigaki, Toshiyuki Noda, Michael R Zile, Shinya Minatoguchi
Left ventricular (LV) properties in hypertension (HTN) could be deteriorated by pressure overload, especially in endocardium, resulting in hypertensive heart failure (HHF). We sought to noninvasively examine LV systolic and diastolic functions at three myocardial layers in HTN and elucidate features of HHF by speckle-tracking echocardiography (STE) with high volume rates. We examined normotensive controls (n = 54), HTN patients without LV hypertrophy (LVH) (n = 50), and HTN patients with LVH (n = 40) and HHF patients (n = 45)...
June 21, 2017: Heart and Vessels
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