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https://www.readbyqxmd.com/read/28735445/characterizing-prolonged-heat-effects-on-mortality-in-a-sub-tropical-high-density-city-hong-kong
#1
Hung Chak Ho, Kevin Ka-Lun Lau, Chao Ren, Edward Ng
Extreme hot weather events are likely to increase under future climate change, and it is exacerbated in urban areas due to the complex urban settings. It causes excess mortality due to prolonged exposure to such extreme heat. However, there is lack of universal definition of prolonged heat or heat wave, which leads to inadequacies of associated risk preparedness. Previous studies focused on estimating temperature-mortality relationship based on temperature thresholds for assessing heat-related health risks but only several studies investigated the association between types of prolonged heat and excess mortality...
July 22, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28735360/navigating-the-future-of-cardiovascular-drug-development-leveraging-novel-approaches-to-drive-innovation-and-drug-discovery-summary-of-findings-from-the-novel-cardiovascular-therapeutics-conference
#2
REVIEW
Thomas J Povsic, Rob Scott, Kenneth W Mahaffey, Robert Blaustein, Jay M Edelberg, Martin P Lefkowitz, Scott D Solomon, Jonathan C Fox, Kevin E Healy, Aarif Y Khakoo, Douglas W Losordo, Fady I Malik, Brett P Monia, Rusty L Montgomery, Jeffrey Riesmeyer, Gregory G Schwartz, Steven L Zelenkofske, Joseph C Wu, Scott M Wasserman, Matthew T Roe
PURPOSE: The need for novel approaches to cardiovascular drug development served as the impetus to convene an open meeting of experts from the pharmaceutical industry and academia to assess the challenges and develop solutions for drug discovery in cardiovascular disease. METHODS: The Novel Cardiovascular Therapeutics Summit first reviewed recent examples of ongoing or recently completed programs translating basic science observations to targeted drug development, highlighting successes (protein convertase sutilisin/kexin type 9 [PCSK9] and neprilysin inhibition) and targets still under evaluation (cholesteryl ester transfer protein [CETP] inhibition), with the hope of gleaning key lessons to successful drug development in the current era...
July 22, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28735302/autopsy-interrogation-of-emergency-medicine-dispute-cases-how-often-are-clinical-diagnoses-incorrect
#3
Danyang Liu, Rongchang Gan, Weidi Zhang, Wei Wang, Hexige Saiyin, Wenjiao Zeng, Guoyuan Liu
AIMS: Emergency medicine is a 'high risk' specialty. Some diseases develop suddenly and progress rapidly, and sudden unexpected deaths in the emergency department (ED) may cause medical disputes. We aimed to assess discrepancies between antemortem clinical diagnoses and postmortem autopsy findings concerning emergency medicine dispute cases and to figure out the most common major missed diagnoses. METHODS: Clinical files and autopsy reports were retrospectively analysed and interpreted...
July 22, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28735291/subclinical-atherosclerosis-cardiac-and-kidney-function-heart-failure-and-dementia-in-the-very-elderly
#4
Lewis H Kuller, Oscar L Lopez, John S Gottdiener, Dalane W Kitzman, James T Becker, Yuefang Chang, Anne B Newman
BACKGROUND: Heart failure (HF) and dementia are major causes of disability and death among older individuals. Risk factors and biomarkers of HF may be determinants of dementia in the elderly. We evaluated the relationship between biomarkers of cardiovascular disease and HF and risk of dementia and death. Three hypotheses were tested: (1) higher levels of high-sensitivity cardiac troponin T, N-terminal of prohormone brain natriuretic peptide, and cystatin C predict risk of death, cardiovascular disease, HF, and dementia; (2) higher levels of cardiovascular disease biomarkers are associated with increased risk of HF and then secondary increased risk of dementia; and (3) risk of dementia is lower among participants with a combination of lower coronary artery calcium, atherosclerosis, and lower high-sensitivity cardiac troponin T (myocardial injury)...
July 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28735289/prolonged-fever-after-st-segment-elevation-myocardial-infarction-and-long-term-cardiac-outcomes
#5
Chika Kawashima, Yasushi Matsuzawa, Eiichi Akiyama, Masaaki Konishi, Hiroyuki Suzuki, Katsutaka Hashiba, Toshiaki Ebina, Masami Kosuge, Kiyoshi Hibi, Kengo Tsukahara, Noriaki Iwahashi, Nobuhiko Maejima, Kentaro Sakamaki, Satoshi Umemura, Kazuo Kimura, Kouichi Tamura
BACKGROUND: The biphasic inflammation after ST-segment elevation myocardial infarction (STEMI) plays an important role in myocardial healing and progression of systemic atherosclerosis. The purpose of this study is to investigate the impact of fever during the first and second phases of post-STEMI inflammation on long-term cardiac outcomes. METHODS AND RESULTS: A total of 550 patients with STEMI were enrolled in this study. Axillary body temperature (BT) was measured and maximum BTs were determined for the first (within 3 days: max-BT1-3d) and second (from 4 to 10 days after admission: max-BT4-10d) phases, respectively...
July 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28735170/effects-of-different-solvents-on-the-conformations-of-apoptotic-cytochrome-c-structural-insights-from-molecular-dynamics-simulation
#6
Gurusamy Muneeswaran, Subramanian Kartheeswaran, Kaliappan Muthukumar, Christopher D Dharmaraj, Chandran Karunakaran
Cytochrome c (cyt-c) upon binding with cardiolipin acquires peroxidase activity and is strictly connected to the pathogenesis of many human diseases including neurodegenerative and cardiovascular diseases. Interaction of cyt-c with cardiolipin mimics partial unfolding/conformational changes of cyt-c in different solvent environments. Dynamic pictures of these conformational changes of cyt-c are crucial in understanding their physiological roles in mitochondrial functions. Therefore, atomistic molecular dynamics (MD) simulations have been carried out to investigate the effect of different solvents (water, urea/water, MeOH and DMSO) on the structure and conformations of apoptotic cyt-c (Fe(3+))...
July 14, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28735153/self-monitoring-systems-for-personalised-health-care-and-lifestyle-surveillance
#7
EDITORIAL
Giuseppe Coppini, Sara Colantonio
The quality of life and individual well-being are universally recognised as key factors in disease prevention. In particular, lifestyle interventions are effective tools for reducing the risk and incidence of major illnesses, such as cardiovascular diseases and metabolic disorders. On the other hand, patient role is progressively shifting from being a passive recipient of care towards being a co-producer of her/his health. In this frame, novel devices and systems able to help individuals in self-evaluation are expected to play a crucial role...
July 19, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28735152/a-systematic-review-of-cardiovascular-emergency-department-visits-hospital-admissions-and-mortality-associated-with-ambient-black-carbon
#8
REVIEW
Thomas J Luben, Jennifer L Nichols, Steven J Dutton, Ellen Kirrane, Elizabeth O Owens, Laura Datko-Williams, Meagan Madden, Jason D Sacks
BACKGROUND: Black carbon (BC) is a ubiquitous component of particulate matter (PM) emitted from combustion-related sources and is associated with a number of health outcomes. OBJECTIVES: We conducted a systematic review to evaluate the potential for cardiovascular morbidity and mortality following exposure to ambient BC, or the related component elemental carbon (EC), in the context of what is already known about the associations between exposure to fine particulate matter (PM2...
July 20, 2017: Environment International
https://www.readbyqxmd.com/read/28735151/do-air-pollution-and-neighborhood-greenness-exposures-improve-the-predicted-cardiovascular-risk
#9
Maayan Yitshak-Sade, Itai Kloog, Victor Novack
BACKGROUND: Numerous studies show associations between exposure to Particulate Matter and Cardiovascular disease (CVD). Current cardiovascular equations incorporate the major risk factors for CVD. The patients' environment, however, is not incorporated in these equations. METHODS: In a retrospective analysis, we assessed the contribution of neighborhood greenness and particulate matter (coarse-PM and PM<2.5μm-PM2.5) to the development of CVD by analyzing the change in prediction abilities...
July 20, 2017: Environment International
https://www.readbyqxmd.com/read/28735097/protecting-the-heart-through-mk2-modulation-toward-a-role-in-diabetic-cardiomyopathy-and-lipid-metabolism
#10
REVIEW
Matthieu Ruiz, Lise Coderre, Bruce Gordon Allen, Christine Des Rosiers
Various signaling pathways have been identified in the heart as important players during development, physiological adaptation or pathological processes. This includes the MAPK families, particularly p38MAPK, which is involved in several key cellular processes, including differentiation, proliferation, apoptosis, inflammation, metabolism and survival. Disrupted p38MAPK signaling has been associated with several diseases, including cardiovascular diseases (CVD) as well as diabetes and its related complications...
July 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28735076/quantifying-the-influence-of-oscillatory-flow-disturbances-on-blood-flow
#11
Sargon A Gabriel, Yan Ding, Yuqing Feng
Pulsatile blood flow is renowned for inducing localised flow disturbances that are characterised by significant oscillations. These flow disturbances are recognised to have a physiologic significance within the cardiovascular system, particularly with respect to their proatherogenic expression on endothelial cells. Flow disturbances also impart significant influence on the mechanics of cardiovascular flow and are formally shown in the present study to be coupled to the period-average behaviour of a pulsatile flow field, causing it to be misrepresented by its steady-equivalent; which is often used in models of atherogenesis and hence limits their reliability...
July 19, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28735064/associations-of-fibroblast-growth-factor-21-with-cardiovascular-risk-and-%C3%AE-cell-function-in-patients-who-had-no-history-of-diabetes
#12
Jun-Sing Wang, Wayne Huey-Herng Sheu, Wen-Jane Lee, I-Te Lee, Shih-Yi Lin, Wen-Lieng Lee, Kae-Woei Liang, Shing-Jong Lin
BACKGROUND: We investigated the associations of fibroblast growth factor 21 (FGF-21) with cardiovascular risk and β-cell function in patients who had no history of diabetes. METHODS: We enrolled 269 outpatients who had been referred for an oral glucose tolerance test (OGTT). Plasma glucose, insulin, and FGF-21 were measured before and at 2h after the OGTT. β-cell function was assessed using the insulinogenic index, corrected for insulin resistance. Patients' 10-year coronary heart disease (CHD) risk was assessed using the Chinese Multi-provincial Cohort Study functions...
July 19, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28734960/pharmacokinetic-interactions-of-curcuminoids-with-conventional-drugs-a-review
#13
REVIEW
Roodabeh Bahramsoltani, Roja Rahimi, Mohammad Hosein Farzaei
ETHNOPHARMACOLOGICAL RELEVANCE: Herb-drug interactions are of great concern in health practices. Curcumin is a natural polyphenol extracted from turmeric, a spice widely used all over the world. Curcumin is clinically used due to its acceptable safety profile and therapeutic efficacy. AIM OF THE STUDY: Current paper aims to highlight the effect of curcumin on concomitantly used drugs. METHODS: Electronic databases including PubMed, Scopus and Science Direct were searched with the keywords "curcumin" in the title/abstract and "drug interaction," "drug metabolism," "cytochrome," "P-glycoprotein" and "P450" in the whole text...
July 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28734928/lv-mass-independently-predicts-mortality-and-need-for-future-revascularization-in%C3%A2-patients-undergoing-diagnostic-coronary-angiography
#14
Ahmed Abdi-Ali, Robert J H Miller, Danielle Southern, Mei Zhang, Yoko Mikami, Merril Knudtson, Bobak Heydari, Andrew G Howarth, Carmen P Lydell, Mathew T James, Stephen B Wilton, James A White
OBJECTIVES: The goal of this study was to assess associations between left ventricular (LV) mass, all-cause mortality, and need for revascularization in patients undergoing coronary angiography. BACKGROUND: LV hypertrophy is associated with adverse cardiovascular outcomes in healthy subjects. However, its influence in those with known or suspected coronary artery disease is poorly understood. METHODS: A total of 3,754 patients (mean age 59...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28734922/warfarin-use-is-associated-with-progressive-coronary-arterial-calcification-insights-from-serial-intravascular-ultrasound
#15
Jordan Andrews, Peter J Psaltis, Ozgur Bayturan, Mingyuan Shao, Brian Stegman, Mohamed Elshazly, Samir R Kapadia, E Murat Tuzcu, Steven E Nissen, Stephen J Nicholls, Rishi Puri
OBJECTIVES: This study compared serial changes in coronary percent atheroma volume (PAV) and calcium index (CaI) in patients with coronary artery disease who were treated with and without warfarin. BACKGROUND: Warfarin blocks the synthesis and activity of matrix Gla protein, a vitamin K-dependent inhibitor of arterial calcification. The longitudinal impact of warfarin on serial coronary artery calcification in vivo in humans is unknown. METHODS: In a post hoc patient-level analysis of 8 prospective randomized trials using serial coronary intravascular ultrasound examinations, this study compared changes in PAV and CaI in matched arterial segments in patients with coronary artery disease who were treated with (n = 171) and without (n = 4,129) warfarin during an 18- to 24-month period...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28734900/molecular-imaging-in-stem-cell-based-therapies-of-cardiac-diseases
#16
REVIEW
Xiang Li, Marcus Hacker
In the past 15years, despite regenerative medicine has shown great potential for cardiovascular diseases, the outcome and safety of stem cell transplantation has shown controversial results in the published literature. Medical imaging might be useful for monitoring and quantification transplanted cells within the heart and to serially characterize the effects of stem cell therapy of the myocardium. From the multiple available noninvasive imaging techniques, magnetic resonance imaging and nuclear imaging by positron (PET) or single photon emission computer tomography (SPECT) are the most used clinical approaches to follow the fate of transplanted stem cells in vivo...
July 19, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28734899/strategies-to-develop-endogenous-stem-cell-recruiting-bioactive-materials-for-tissue-repair-and-regeneration
#17
Settimio Pacelli, Sayantani Basu, Jonathan Whitlow, Aparna R Chakravarti, Francisca Acosta, Arushi Varshney, Saman Modaresi, Cory Berkland, Arghya Paul
A leading strategy in tissue engineering is the design of biomimetic scaffolds that stimulate the body's repair mechanisms through the recruitment of endogenous stem cells to sites of injury. Approaches that employ the use of chemoattractant gradients to guide tissue regeneration without external cell sources are favored over traditional cell-based therapies that have limited potential for clinical translation. Following this concept, bioactive scaffolds can be engineered to provide a temporally and spatially controlled release of biological cues, with the possibility to mimic the complex signaling patterns of endogenous tissue regeneration...
July 19, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28734885/clinical-impact-of-baseline-right-bundle-branch-block-in-patients-undergoing-transcatheter-aortic-valve-replacement
#18
Vincent Auffret, John G Webb, Hélène Eltchaninoff, Antonio J Muñoz-García, Dominique Himbert, Corrado Tamburino, Luis Nombela-Franco, Fabian Nietlispach, César Morís, Marc Ruel, Antonio E Dager, Vicenç Serra, Asim N Cheema, Ignacio J Amat-Santos, Fábio Sandoli de Brito, Pedro Alves Lemos, Alexandre Abizaid, Rogério Sarmento-Leite, Eric Dumont, Marco Barbanti, Eric Durand, Juan H Alonso Briales, Alec Vahanian, Claire Bouleti, Sebastiano Immè, Francesco Maisano, Raquel Del Valle, Luis Miguel Benitez, Bruno García Del Blanco, Rishi Puri, François Philippon, Marina Urena, Josep Rodés-Cabau
OBJECTIVES: This study sought to assess the influence of baseline right bundle branch block (RBBB) on all-cause and cardiovascular mortality as well as sudden cardiac death (SCD) among patients undergoing transcatheter aortic valve replacement (TAVR). BACKGROUND: Few data exist regarding the late clinical impact of pre-existing RBBB in TAVR recipients. METHODS: A total of 3,527 patients (mean age 82 ± 8 years, 50.1% men) were evaluated according to the presence of RBBB on baseline electrocardiography...
July 13, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28734857/comorbidities-in-difficult-to-control-asthma
#19
Pieter-Paul W Hekking, Marijke Amelink, Reinier R Wener, Marcel L Bouvy, Elisabeth H Bel
BACKGROUND: Difficult-to-control asthma is associated with significant medical and financial burden. Comorbidities are known to contribute to uncontrolled asthma. Better insight into the prevalence, nature, and risk factors of comorbidities may optimize treatment strategies in patients with difficult-to-control asthma and decrease disease burden. OBJECTIVES: The objectives of this study were to assess the prevalence, number, and type of comorbidities in difficult-to-control asthma compared with not-difficult-to-control asthma, and to investigate whether specific patient characteristics are associated with particular comorbidities...
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28734855/effects-of-constant-rate-infusions-of-dexmedetomidine-or-mk-467-on-the-minimum-alveolar-concentration-of-sevoflurane-in-dogs
#20
Rachel C Hector, Marlis L Rezende, Khursheed R Mama, Eugene P Steffey, Heather K Knych, Ann M Hess, Juhana M Honkavaara, Marja R Raekallio, Outi M Vainio
OBJECTIVE: To determine the effects of low and high dose infusions of dexmedetomidine and a peripheral α2-adrenoceptor antagonist, MK-467, on sevoflurane minimum alveolar concentration (MAC) in dogs. STUDY DESIGN: Crossover experimental study. ANIMALS: Six healthy, adult Beagle dogs weighing 12.6±0.9 kg (mean±standard deviation). METHODS: Dogs were anesthetized with sevoflurane in oxygen. After a 60-minute instrumentation and equilibration period, the MAC of sevoflurane was determined in triplicate using the tail clamp technique...
March 4, 2017: Veterinary Anaesthesia and Analgesia
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