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https://www.readbyqxmd.com/read/28812137/myoglobinemia-markers-with-potential-applications-in-forensic-sample-analysis-lipid-markers-in-myoglobinemia-for-postmortem-blood
#1
Hiroko Abe, Daisuke Yajima, Yumi Hoshioka, Akina Nara, Sayaka Nagasawa, Hirotaro Iwase
The crush syndrome, in which rhabdomyolysis and trauma occur as a result of heat stroke and drug intoxication, can lead to myoglobinemia. This condition can be diagnosed by measuring myoglobin (Mb) levels in blood and urine. However, postmortem Mb levels are unreliable indicators, since blood Mb concentration drastically increases within a very short time after death and urine cannot always be obtained at dissection; this makes it difficult to diagnose myoglobinemia in a corpse. To address this issue, in this study, we used a lipidomics approach to identify markers that can be used to detect myoglobinemia in postmortem blood samples...
August 15, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28810981/thermoregulatory-response-to-exercise-after-exertional-heat-stroke
#2
Emmanuel Sagui, Sophie Beighau, Arnaud Jouvion, Julie Trichereau, Delphine Cornet, René Charles Berthelot, Frédéric Canini, Laurent Grélot
BACKGROUND: After one episode of exertional heat stroke (EHS), risk factors must be identified to determine the potential for subsequent episodes. One of these risk factors, core body temperature (Tco) kinetics during strenuous exercise, may be a surrogate marker suggestive of impaired thermoregulation. This study aimed to determine the kinetics of increases in Tco among military subjects who had a history of EHS. METHODS: Forty subjects (38 males, mean age 28.4 ± 4...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810980/risk-factors-for-rhabdomyolysis-in-the-u-s-army
#3
Owen T Hill, Dennis E Scofield, Jenna Usedom, Lakmini Bulathsinhala, Craig McKinnon, Paul Kwon, Timothy Haley, Robert Carter
The standardized mortality rate of rhabdomyolysis (RM) in Active Duty U.S. Army Soldiers is considerably higher than in the civilian population. RM occurs when large amounts of intracellular contents from damaged skeletal muscle escape into circulation, leading to serious sequelae (e.g., acute renal failure, hyperkalemia, compartment syndrome). Extended physical exertion, especially in hot environments, and trauma can precipitate RM. The aim of this study was to identify RM risk factors among U.S. Active Duty Army (ADA) Soldiers...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28803348/effect-of-small-proportion-of-butanol-additive-on-the-performance-emission-and-combustion-of-australian-native-first-and-second-generation-biodiesel-in-a-diesel-engine
#4
Md Mofijur Rahman, Mohammad Golam Rasul, Nur Md Sayeed Hassan, Abul Kalam Azad, Md Nasir Uddin
This paper aims to investigate the effect of the addition of 5% alcohol (butanol) with biodiesel-diesel blends on the performance, emissions, and combustion of a naturally aspirated four stroke multi-cylinder diesel engine at different engine speeds (1200 to 2400 rpm) under full load conditions. Three types of local Australian biodiesel, namely macadamia biodiesel (MB), rice bran biodiesel (RB), and waste cooking oil biodiesel (WCB), were used for this study, and the data was compared with results for conventional diesel fuel (B0)...
August 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28789764/-treatment-of-hyperthermia
#5
Sofie Søndergaard Mørch, Johnny Dohn Holmgren Andersen, Morten Heiberg Bestle
Hyperthermia is an uncontrolled elevation of body temperature exceeding the body's ability to dissipate heat. Hyperthermia can result in dangerously high core temperatures and can rapidly become fatal. Common causes include heat stroke, malignant hyperthermia, serotonin syndrome, neuroleptic syndrome, a few endocrine emergencies as well as numerous intoxications. Rapid diagnosis and prompt cooling are pivotal, since the condition triggers a cascade of metabolic events which may progress to irreversible injury or death...
July 24, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28782352/cornus-mas-a-review-on-traditional-uses-and-pharmacological-properties
#6
Fatemeh Hosseinpour-Jaghdani, Tahoora Shomali, Sajedeh Gholipour-Shahraki, Mohammad Rahimi-Madiseh, Mahmoud Rafieian-Kopaei
Medicinal plants that are used today have been known by people of ancient cultures around the world and have largely been considered due to their medicinal properties. Cornus mas L. (Cornelian cherry) is one of these medicinal plants with high level of antioxidant activity. Cornelian cherry is an attractive ornamental plant with delicious fruit having nutritional and therapeutic values. The main purpose of this paper is to present and summarize the pharmacological and therapeutic effects from researches done on Cornelian cherry in studies from 2000 to 2016...
March 31, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28761425/electroacupuncture-regulates-the-stress-injury-repair-chain-of-events-after-cerebral-ischemia-reperfusion-injury
#7
Peng Shi, Lin-Lin Sun, Yi-Shuo Lee, Ya Tu
Inflammation after stroke is the main cause of cerebral ischemia/reperfusion injury. Cascading events after injury can lead to cell death. Heat shock protein 70 and other endogenous injury-signaling molecules are released by damaged cells, which can lead to systemic stress reactions. Protecting the brain through repair begins with the stress-injury-repair signaling chain. This study aimed to verify whether acupuncture acts through this chain to facilitate effective treatment of ischemic stroke. Rat models of cerebral ischemia/reperfusion injury were established by Zea Longa's method, and injury sites were identified by assessing neurological function, 2,3,5-triphenyltetrazolium chloride staining, and hematoxylin-eosin staining...
June 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28740997/guidelines-for-bystander-first-aid-2016
#8
Jen Heng Pek
Cardiac life support is a form of first aid for cardiac emergencies. However, research and evidence in this field is lacking compared with other forms of first aid. Having identified the common emergencies that are encountered in the hospital, based on the available evidence, we have put together what could be an evidence-based approach to the first aid management of some of these common emergencies, viz. breathlessness, chest pain, allergies, stroke, heat injury, poisoning, unconsciousness, seizures, and trauma situations such as bleeding, wounds, contusions, head injury, burns and fractures...
July 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28721171/response-to-an-unusual-outbreak-in-a-high-risk-situation
#9
Mahmood Muazu Dalhat, Olufunmilayo Ibitola Fawole, Patrick Mboya Nguku, Meeyoung Mattie Park, Casey Daniel Hall, Nasir Sani-Gwarzo
In 2010, a series of lead poisoning outbreaks linked to artisanal gold processing killed at least 400 young children in Zamfara State in northwestern Nigeria. There were several efforts to respond to the outbreaks as they occurred. Subsequent recurrence of lead poisoning outbreaks within Zamfara and beyond suggested that there were no efforts to mitigate the outbreaks as recommended for disaster management. This case study, to be completed within 3 hours, is suitable for senior level public health officials and those training for such positions...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28718616/photothermally-driven-refreshable-microactuators-based-on-graphene-oxide-doped-paraffin
#10
Sichao Hou, Miao Wang, Shouwu Guo, Ming Su
Actuators based on phase change materials (paraffin) can simultaneously produce large stroke length and large force due to thermal expansion, but the low thermal conductivity of paraffin requires high power input and long actuation time. The graphene oxide (GO) doped paraffin dynamic actuator addresses the key challenges in the design of thermal phase change actuators: Thermal conductivity and light absorbing are increased, and the response time is reduced compared to the standard phase change actuator designed with metal heating resistors...
August 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28718257/risk-factors-for-heat-related-deaths-during-the-june-2015-heat-wave-in-karachi-pakistan
#11
Syed Ghazanfar Saleem, Tehreem Ansari, Ashraf Shamshad Ali, Sara Fatima, Mariam Hassan Rizvi, Muhammad Abdul Samad
BACKGROUND: Mortality as a consequence of heat related illness is a public health concern. Emergency department (ED) experiences increased patients' flow and decreased survival as a consequence of heat stroke during the episodes of heat wave. The present study was conducted to identify the risk factors for mortality among victims of heat wave (17th - 23rd June), 2015 evaluated in the Emergency Department of The Indus Hospital (TIH), Karachi. METHODS: In this cross-sectional study data was retrospectively collected...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28699024/transcriptome-sequencing-reveals-astrocytes-as-a-therapeutic-target-in-heat-stroke
#12
Bing Niu, Tao Zhang, Huaiqiang Hu, Bingzhen Cao
Heat-stroke is a serious form of hyperthermia with high mortality, and can induce severe central nervous system disorders. The neurovascular unit (NVU), which consists of vascular cells, glial cells, and neurons, controls blood-brain barrier (BBB) permeability and cerebral blood flow, and maintains the proper functioning of neuronal circuits. However, the detailed function of each BBB component in heat-stroke remains unknown. In order to interpret alterations caused by heat stress, we performed transcriptome comparison of neuron and astrocyte primary cultures after heat treatment...
July 11, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28680920/exertional-heat-stroke-and-the-evolution-of-field-care-a-physician-s-perspective
#13
EDITORIAL
William O Roberts
No abstract text is available yet for this article.
2017: Temperature: Multidisciplinary Biomedical Journal
https://www.readbyqxmd.com/read/28677732/jnk-signaling-is-required-for-the-mip%C3%A2-1%C3%AE-%C3%A2-associated-regulation-of-kupffer-cells-in-the-heat-stroke-response
#14
Xiao-Juan Chen, Zhong-Zhi Tang, Guo-Guo Zhu, Qing Cheng, Wen-Kai Zhang, Hui-Min Li, Wei Fu, Qi-Ping Lu
Severe heat stroke (HS) consists of extreme hyperthermia with thermoregulatory failure, leading to high morbidity and mortality. Liver injury is a complication of HS that is associated with inflammatory responses and Kupffer cells (KCs), which are resident macrophages in the liver that serve as a major source of inflammatory cytokines; however, the association and the underlying mechanisms of KC functions in HS‑induced endotoxemia and inflammation require an improved understanding. The important chemokine macrophage inflammatory protein‑1α (MIP‑1α) increases inflammatory responses and the secretion of inflammatory molecules from KCs, including tumor necrosis factor‑α, interleukin (IL)‑1β and IL‑6...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28663093/heat-stress-induced-neuroinflammation-and-aberration-in-monoamine-levels-in-hypothalamus-are-associated-with-temperature-dysregulation
#15
Nishant Ranjan Chauhan, Medha Kapoor, Laxmi Prabha Singh, Rajinder Kumar Gupta, Ramesh Chand Meena, Rajkumar Tulsawani, Sarita Nanda, Shashi Bala Singh
Heat Stress (HS) induces diverse pathophysiological changes, which include brain ischemia, oxidative stress and neuronal damage. The present study was undertaken with the objective to ascertain whether neuroinflammation in Hypothalamus (HTH) caused under HS affects monoamine levels and hence, its physiological role in thermoregulation. Rats were exposed to HS in a heat simulation environmental chamber (Ambient temperature, Ta=45±0.5°C and Relative Humidity, RH=30±10%) with real-time measurement of core temperature (Tc) and skin temperature (Ts)...
September 1, 2017: Neuroscience
https://www.readbyqxmd.com/read/28656249/oxidative-stress-regulates-mitogen%C3%A2-activated-protein-kinases-and-c%C3%A2-jun-activation-involved-in-heat-stress-and-lipopolysaccharide%C3%A2-induced-intestinal-epithelial-cell-apoptosis
#16
Yanan Liu, Zhenglian Wang, Weidang Xie, Zhengtao Gu, Qiulin Xu, Lei Su
Heat stress and gut‑derived endotoxinemia are common causes of multiple organ dysfunction syndrome in heat stroke patients. Evidence has demonstrated that cell apoptosis in the small intestine serves an important role in the pathogenesis of heatstroke, which leads to increased intestinal permeability to endotoxin or lipopolysaccharides (LPS) from the gut entering the circulation. However, little is known about the potential underlying mechanisms mediating heat stress combined with LPS‑induced intestinal epithelial cell apoptosis...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28651196/dancing-to-death-a-case-of-heat-stroke
#17
K Nadesan, Chandra Kumari, Mohd Afiq
Heat stroke is a medical emergency which may lead to mortality unless diagnosed early and treated effectively. Heat stroke may manifest rapidly, hence making it difficult to differentiate it from other clinical causes in a collapsed victim.(1) We are presenting a case report of twelve patients who were admitted to our emergency department from a music festival held on 13-15th of March 2014. They developed complications arising from a combination of severe adverse weather condition, prolonged outdoor physical exertion due to long hours of dancing and drug-use, resulting in heat stroke...
May 4, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28641278/astragaloside-iv-alleviates-heat-induced-inflammation-by-inhibiting-endoplasmic-reticulum-stress-and-autophagy
#18
Zhiwei Dong, Jian Zhou, Ying Zhang, Yajie Chen, Zichen Yang, Guangtao Huang, Yu Chen, Zhiqiang Yuan, Yizhi Peng, Tongtong Cao
BACKGROUND: Thermal injury is the main cause of pulmonary disease in stroke after burn and can be life threatening. Heat-induced inflammation is an important factor that triggers a series of induces pathological changes. However, this mechanism underlying heat-induced inflammation in thermal inhalation injury remains unclear. Studies have revealed that astragaloside-IV (AS-IV), a natural compound extracted from Astragalus membranaceus, has protective effects in inflammatory diseases. Here, we investigated whether the protective effects of AS-IV occur because of the suppression of heat-induced endoplasmic reticulum (ER) stress and excessive autophagy Methods: AS-IV was administered to Wistar rats after thermal inhalation injury and 16HBE140-cells were treated with AS-IV...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28636607/three-dimensional-cell-shapes-and-arrangements-in-human-sweat-glands-as-revealed-by-whole-mount-immunostaining
#19
Ryuichiro Kurata, Sugiko Futaki, Itsuko Nakano, Fumitaka Fujita, Atsushi Tanemura, Hiroyuki Murota, Ichiro Katayama, Fumihiro Okada, Kiyotoshi Sekiguchi
Because sweat secretion is facilitated by mechanical contraction of sweat gland structures, understanding their structure-function relationship could lead to more effective treatments for patients with sweat gland disorders such as heat stroke. Conventional histological studies have shown that sweat glands are three-dimensionally coiled tubular structures consisting of ducts and secretory portions, although their detailed structural anatomy remains unclear. To better understand the details of the three-dimensional (3D) coiled structures of sweat glands, a whole-mount staining method was employed to visualize 3D coiled gland structures with sweat gland markers for ductal luminal, ductal basal, secretory luminal, and myoepithelial cells...
2017: PloS One
https://www.readbyqxmd.com/read/28625272/-research-progress-in-the-multiple-organ-dysfunction-syndrome-caused-by-heat-stroke
#20
Mengmeng Yang, Yu Zhang, Yan Zhao, Hongjun Kang
Heat stroke (HS) is a life-threatening illness characterized by core body temperatures above 40 °C coupled with central nervous system (CNS) dysfunction, including delirium, convulsions, and/or coma. Its morbidity has increased dramatically in the past few decades. Multiple organ dysfunction syndrome (MODS) is not only the most serious complication of HS, but also the leading cause of deaths. Understanding the pathogenesis, characteristic and advancement pattern of MODS caused by HS will have a profound effect on the clinical treatment, research and mortality decrease...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
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