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Ischemic heat disease

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https://www.readbyqxmd.com/read/29687041/meta-inflammation-and-cardiometabolic-disease-in-obesity-can-heat-therapy-help
#1
REVIEW
Brett R Ely, Zachary S Clayton, Carrie E McCurdy, Joshua Pfeiffer, Christopher T Minson
Obesity and associated metabolic dysfunction have reached epidemic proportions worldwide. The current theory linking metabolic disease and obesity involves ischemic adipose tissue initiating an inflammatory cascade that results in systemic insulin resistance and may eventually lead to type II diabetes mellitus. Diabetes and associated metabolic dysfunction increase the risk of developing cardiovascular disease and fatal cardiovascular events. By targeting key steps in this process, ischemia and inflammation, this cascade may be prevented or reversed and thus metabolic and cardiovascular health may be preserved in obesity...
2018: Temperature: Multidisciplinary Biomedical Journal
https://www.readbyqxmd.com/read/29652048/-should-a-doctor-take-into-consideration-the-influence-of-climatic-factors-deliberations-on-the-occasion-of-the-publication-of-a-new-monograph-the-book-of-essays-of-arid-medicine-by-z-r-zununov-i-h-nurov-and-s-z-zununova
#2
E L Povazhnaya
The authors analyze the monograph of the Uzbek scientists professor Z.R. Zununov, I.H. Nurov, and S.Z. Zununova «Essays of arid medicine» (Tashkent: «KAMALAK-PRESS» publishing house, 2016;540). The book presents the results of the comprehensive bioclimatic assessment of the arid zones of Uzbekistan, their extreme climatic conditions (such as high intensity and solar radiation and the considerable duration of its period, dry air and summer heat, sandstorms (the so-called «Afghans»), and the great variety of the natural health-improving factors including mineral waters, microclimate of the speleotherapeutic cave, the desert dune sand, etc...
April 9, 2018: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/29643111/cardiovascular-and-cerebrovascular-emergency-department-visits-associated-with-wildfire-smoke-exposure-in-california-in-2015
#3
Zachary S Wettstein, Sumi Hoshiko, Jahan Fahimi, Robert J Harrison, Wayne E Cascio, Ana G Rappold
BACKGROUND: Wildfire smoke is known to exacerbate respiratory conditions; however, evidence for cardiovascular and cerebrovascular events has been inconsistent, despite biological plausibility. METHODS AND RESULTS: A population-based epidemiologic analysis was conducted for daily cardiovascular and cerebrovascular emergency department (ED) visits and wildfire smoke exposure in 2015 among adults in 8 California air basins. A quasi-Poisson regression model was used for zip code-level counts of ED visits, adjusting for heat index, day of week, seasonality, and population...
April 11, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29600631/-exploring-chinese-medicine-and-western-medicine-group-modules-in-acute-phase-of-ischemic-stroke-disease
#4
Wei Yang, Ming-Quan Li, Yang Li, Lei-Lei Sun, Yan-Ming Xie, Chong-Hui Guo, Yan Zhuang
Under the theoretical guidance of "combination of disease and syndrome, correspondence between syndrome and prescription, and dynamic space-time", 11 135 acute ischemic stroke patients were collected from hospital information system(HIS) of many 3A grade hospitals of traditional Chinese medicine. Complex network analysis was adopted to obtain the core syndrome elements in different periods of acute ischemic stroke patients, and it was found that the core syndrome elements were blood stasis syndrome, phlegm, endogenous wind, Yin deficiency, Qi deficiency, heat, hyperactivity of liver Yang, liver, and kidney of patients in hospital for the first day, and during 8-14 d in hospitalization, the core syndrome elements were blood stasis, phlegm, Yin deficiency, Qi deficiency, endogenous wind, hyperactivity of liver Yang, liver, and kidney...
February 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29595330/neuroprotective-effects-of-psalmotoxin-1-an-acid-sensing-ion-channel-asic-inhibitor-in-ischemia-reperfusion-in-mouse-eyes
#5
Adnan Dibas, Cameron Millar, Abraham Al-Farra, Thomas Yorio
PURPOSE: The purpose of the current study is to assess changes in the expression of Acid-Sensing Ion Channel (ASIC)1a and ASIC2 in retinal ganglion cells (RGCs) after retinal ischemia and reperfusion (I/R) injury and to test if inhibition of ASIC1a provides RGC neuroprotection. METHODS: Transient ischemia was induced in one eye of C57BL/6 mice by raising intraocular pressure to 120 mmHg for 60 min followed by retinal reperfusion by restoring normal pressure. RGC function was measured by Pattern electroretinography (PERG)...
March 29, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29440198/developing-a-clinical-approach-to-air-pollution-and-cardiovascular-health
#6
REVIEW
Michael B Hadley, Jill Baumgartner, Rajesh Vedanthan
Nearly 3 billion people are exposed to household air pollution emitted from inefficient cooking and heating stoves, and almost the entire global population is exposed to detectable levels of outdoor air pollution from traffic, industry, and other sources. Over 3 million people die annually of ischemic heart disease or stroke attributed to air pollution, more than from traditional cardiac risk factors such as obesity, diabetes mellitus, or smoking. Clinicians have a role to play in reducing the burden of pollution-attributable cardiovascular disease...
February 13, 2018: Circulation
https://www.readbyqxmd.com/read/29426953/cerebral-ischemia-induces-the-aggregation-of-proteins-linked-to-neurodegenerative-diseases
#7
Anja Kahl, Ismary Blanco, Katherine Jackman, Juhi Baskar, Harihar Milaganur Mohan, Reunet Rodney-Sandy, Sheng Zhang, Costantino Iadecola, Karin Hochrainer
Protein aggregation critically affects cell viability in neurodegenerative diseases, but whether this also occurs in ischemic brain injury remains elusive. Prior studies report the post-ischemic aggregation of ubiquitin, small ubiquitin-related modifier (SUMO) and ribosomes, however whether other proteins are also affected is unknown. Here we employed a proteomic approach to identify the insoluble, aggregated proteome after cerebral ischemia. Mice underwent transient middle cerebral artery occlusion or sham-surgery...
February 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29241068/long-term-projections-of-temperature-related-mortality-risks-for-ischemic-stroke-hemorrhagic-stroke-and-acute-ischemic-heart-disease-under-changing-climate-in-beijing-china
#8
Tiantian Li, Radley M Horton, Daniel A Bader, Fangchao Liu, Qinghua Sun, Patrick L Kinney
BACKGROUND: Changing climates have been causing variations in the number of global ischemic heart disease and stroke incidences, and will continue to affect disease occurrence in the future. OBJECTIVES: To project temperature-related mortality for acute ischemic heart disease, and ischemic and hemorrhagic stroke with concomitant climate warming. METHODS: We estimated the exposure-response relationship between daily cause-specific mortality and daily mean temperature in Beijing...
March 2018: Environment International
https://www.readbyqxmd.com/read/29217439/in-patients-with-severe-peripheral-arterial-disease-revascularization-induced-improvement-in-lower-extremity-ischemia-can-be-detected-by-laser-speckle-contrast-imaging-of-the-fluctuation-in-blood-perfusion-after-local-heating
#9
Sotaro Katsui, Yoshinori Inoue, Yohei Yamamoto, Kimihiro Igari, Toshifumi Kudo, Hiroyuki Uetake
BACKGROUND: We previously reported the utility of the perfusion value (PV) fluctuation slope for detecting severe ischemia in the lower limb. Our approach was based on a thermal load test mimicking the well-known physiological reaction termed "cold-induced vasodilation," which is known to occur as a 3-phase phenomenon. The slope parameter quantifies the decrease in PVs accompanying the relative cooling (third phase) following the transient increase in blood flow (second phase) induced by the applied thermal load...
April 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28991641/cardioprotection-of-stevioside-on-stunned-rat-hearts-a-mechano-energetical-study
#10
María I Ragone, Patricia Bonazzola, Germán A Colareda, María Lara Lazarte, Fiorella Bruno, Alicia E Consolini
BACKGROUND: The sweetener and hypoglycemic properties of stevioside (STV) are well known, as the main component of the plant Stevia rebaudiana. Given its extensive use in diabetic patients, it was of interest to evaluate its effects on the most frequent cardiovascular disease, the coronary insufficiency. PURPOSE: To study whether STV could be cardioprotective against ischemia-reperfusion (I/R) in a model of "stunning" in rat hearts. STUDY DESIGN: A preclinical study was performed in isolated hearts from rats in the following groups: non-treated rats whose hearts were perfused with STV 0...
November 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28982666/platelet-specific-p38%C3%AE-deficiency-improved-cardiac-function-after-myocardial-infarction-in-mice
#11
Panlai Shi, Lin Zhang, Mingliang Zhang, Wenlong Yang, Kemin Wang, Junfeng Zhang, Kinya Otsu, Gonghua Huang, Xuemei Fan, Junling Liu
OBJECTIVE: MAPKs (mitogen-activated protein kinases), especially p38, play detrimental roles in cardiac diseases and cardiac remodeling post-myocardial infarction. However, the activation and function of MAPKs in coronary thrombosis in vivo and its relationship with clinical outcomes remain poorly understood. APPROACH AND RESULTS: Here, we showed that p38α was the major isoform expressed in human and mouse platelets. Platelet-specific p38α-deficient mice presented impaired thrombosis and hemostasis but had improved cardiac function, reduced infarct size, decreased inflammatory response, and microthrombus in a left anterior descending artery ligation model...
December 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28969032/microrna-199a-acts-as-a-potential-suppressor-of-cardiomyocyte-autophagy-through-targeting-hspa5
#12
Liang Chen, Fei-Yu Wang, Zhen-Yu Zeng, Ling Cui, Jian Shen, Xiao-Wei Song, Pan Li, Xian-Xian Zhao, Yong-Wen Qin
Autophagy is an adaptive response to cardiomyocytes survival under stress conditions. MicroRNAs (miRNAs, miR) have been described to act as potent modulators of autophagy. To investigate whether and how miR-199a modulated autophagy in vitro, primary cardiomyocytes were treated under starvation to induce autophagy. Results showed that down-regulation of miR-199a was sufficient to activate cardiomyocytes autophagy. MiR-199a suppressed cardiomyocytes autophagy through direct inhibiting heat shock protein family A member 5 (Hspa5)...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28964966/ambient-temperature-and-added-heat-wave-effects-on-hospitalizations-in-california-from-1999-to-2009
#13
Toki Sherbakov, Brian Malig, Kristen Guirguis, Alexander Gershunov, Rupa Basu
Investigators have examined how heat waves or incremental changes in temperature affect health outcomes, but few have examined both simultaneously. We utilized distributed lag nonlinear models (DLNM) to explore temperature associations and evaluate possible added heat wave effects on hospitalizations in 16 climate zones throughout California from May through October 1999-2009. We define heat waves as a period when daily mean temperatures were above the zone- and month-specific 95th percentile for at least two consecutive days...
January 2018: Environmental Research
https://www.readbyqxmd.com/read/28754848/microrna-199a-acts-as-a-potential-suppressor-of-cardiomyocyte-autophagy-through-targeting-hspa5
#14
Liang Chen, Fei-Yu Wang, Zhen-Yu Zeng, Ling Cui, Jian Shen, Xiao-Wei Song, Pan Li, Xian-Xian Zhao, Yong-Wen Qin
Autophagy is an adaptive response to cardiomyocytes survival under stress conditions. MicroRNAs (miRNAs, miR) have been described to act as potent modulators of autophagy. To investigate whether and how miR-199a modulated autophagy in vitro, primary cardiomyocytes were treated under starvation to induce autophagy. Results showed that down-regulation of miR-199a was sufficient to activate cardiomyocytes autophagy. MiR-199a suppressed cardiomyocytes autophagy through direct inhibiting heat shock protein family A member 5 (Hspa5)...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28696268/personalizing-risk-stratification-for-sudden-death-in-dilated-cardiomyopathy-the-past-present-and-future
#15
REVIEW
Brian P Halliday, John G F Cleland, Jeffrey J Goldberger, Sanjay K Prasad
Results from the DANISH Study (Danish Study to Assess the Efficacy of ICDs in Patients With Non-Ischemic Systolic Heat Failure on Mortality) suggest that for many patients with dilated cardiomyopathy (DCM), implantable cardioverter-defibrillators do not increase longevity. Accurate identification of patients who are more likely to die of an arrhythmia and less likely to die of other causes is required to ensure improvement in outcomes and wise use of resources. Until now, left ventricular ejection fraction has been used as a key criterion for selecting patients with DCM for an implantable cardioverter-defibrillator for primary prevention purposes...
July 11, 2017: Circulation
https://www.readbyqxmd.com/read/28667552/paying-for-the-tolls-the-high-cost-of-the-innate-immune-system-for-the-cardiac-myocyte
#16
REVIEW
Anne A Knowlton
The cardiac myocyte differs strikingly from the specialized cells of the immune system, which has two different responses to invading organisms and tissue damage. Adaptive or acquired immunity generates highly specific antibodies in response to threats and is an essential component of immunity; however, adaptive immunity can take 4-7 days to mobilize, and a more primitive response, innate immunity, fills the gap. Innate immunity is expressed in complex and in primitive life forms. Specialized receptors, Toll-like receptors (TLRs), which are widely distributed throughout different tissues recognize danger signals and rapidly respond with the release of noxious substances, such as TNFα...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28629818/corydalis-hendersonii-hemsl-protects-against-myocardial-injury-by-attenuating-inflammation-and-fibrosis-via-nf-%C3%AE%C2%BAb-and-jak2-stat3-signaling-pathways
#17
Ruifeng Bai, Xu Yin, Xiao Feng, Yuan Cao, Yan Wu, Zhixiang Zhu, Chun Li, Pengfei Tu, Xingyun Chai
ETHNOPHARMACOLOGICAL RELEVANCE: Corydalis hendersonii Hemsl. (CH) with heat clearing and detoxifying effects are well described in Tibetan folk medicine. It has been used for centuries in China largely for the treatment of high altitude polycythemia, a pathophysiological condition referred to "plethora" in Tibetan medicine, hypertension, hepatitis, edema, gastritis, and other infectious diseases. AIM OF THE STUDY: To investigate the cardioprotective effects of Corydalis hendersonii extract in an ICR mouse model of myocardial ischemic injury...
July 31, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28600978/long-term-effects-of-total-and-source-specific-particulate-air-pollution-on-incident-cardiovascular-disease-in-gothenburg-sweden
#18
Leo Stockfelt, Eva M Andersson, Peter Molnár, Lars Gidhagen, David Segersson, Annika Rosengren, Lars Barregard, Gerd Sallsten
BACKGROUND AND AIMS: Long-term exposure to air pollution increases cardiopulmonary morbidity and mortality, but it is not clear which components of air pollution are the most harmful, nor which time window of exposure is most relevant. Further studies at low exposure levels have also been called for. We analyzed two Swedish cohorts to investigate the effects of total and source-specific particulate matter (PM) on incident cardiovascular disease for different time windows of exposure. METHODS: Two cohorts initially recruited to study predictors of cardiovascular disease (the PPS cohort and the GOT-MONICA cohort) were followed from 1990 to 2011...
October 2017: Environmental Research
https://www.readbyqxmd.com/read/28462125/-helicobacter-pylori-and-cardiovascular-complications-a-mechanism-based-review-on-role-of-helicobacter-pylori-in-cardiovascular-diseases
#19
REVIEW
Prasad G Jamkhande, Surendra G Gattani, Shaikh Ayesha Farhat
Heart disease comprises a wide class of cardiovascular abnormalities, including ischemic heart disease, myocardial infarction, atherosclerosis, and coronary artery disease. It is the leading cause of death all over the world. Several traditional and novel risk factors, such as infectious and noninfectious agents, have been associated with heart disease. Out of these, Helicobacter pylori has been recently introduced as an important etiological factor for heart disease. Numerous seroepidemiological findings observed H...
December 2016: Integrative medicine research
https://www.readbyqxmd.com/read/28442482/bag3-bcl-2-associated-athanogene-3-coding-variant-in-mice-determines-susceptibility-to-ischemic-limb-muscle-myopathy-by-directing-autophagy
#20
Joseph M McClung, Timothy J McCord, Terence E Ryan, Cameron A Schmidt, Tom D Green, Kevin W Southerland, Jessica L Reinardy, Sarah B Mueller, Talaignair N Venkatraman, Christopher D Lascola, Sehoon Keum, Douglas A Marchuk, Espen E Spangenburg, Ayotunde Dokun, Brian H Annex, Christopher D Kontos
BACKGROUND: Critical limb ischemia is a manifestation of peripheral artery disease that carries significant mortality and morbidity risk in humans, although its genetic determinants remain largely unknown. We previously discovered 2 overlapping quantitative trait loci in mice, Lsq-1 and Civq-1 , that affected limb muscle survival and stroke volume after femoral artery or middle cerebral artery ligation, respectively. Here, we report that a Bag3 variant (Ile81Met) segregates with tissue protection from hind-limb ischemia...
July 18, 2017: Circulation
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