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temperature mortality

Jennifer D Jeffrey, Kelly D Hannan, Caleb T Hasler, Cory D Suski
Multiple environmental stressors may interact in complex ways to exceed or diminish the impacts of individual stressors. In the present study, the interactive effects of two ecologically-relevant stressors (increased temperature and partial pressure of carbon dioxide, pCO2 ) were assessed for freshwater mussels - a group of organisms that are among the most sensitive and rapidly declining worldwide. The individual and combined effects of elevated temperature (22-34˚C) and pCO2 (~230, 58,000 µatm) on juvenile Lampsilis siliquoidea were quantified over a 5- or 14-day period, where physiological and whole-animal responses were measured...
March 21, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
Kate R Weinberger, Kipruto Kirwa, Melissa N Eliot, Julia Gold, Helen H Suh, Gregory A Wellenius
BACKGROUND: Climate change is expected to result in more heat-related, but potentially fewer cold-related, emergency department visits and deaths. The net effect of projected changes in temperature on morbidity and mortality remain incompletely understood. We estimated the change in temperature-related morbidity and mortality at two sites in southern New England, USA through the end of the 21st century. METHODS: We used distributed lag Poisson regression models to estimate the present-day associations between daily mean temperature and all-cause emergency department visits and deaths in Rhode Island and in Boston, Massachusetts...
March 16, 2018: Epidemiology
Fiona Lim Mei Ying, Maria Choy Yin Ping, Macy Tong, Elaine Yim Pik Yan, Tracy Lui Siu Yee, Lam Yuk Ting, Anita Lo Wing Sim, Lui Cheuk Yu, Bosco Lam Hoi Shiu, Ashley Cheng Chi Kin
PURPOSE: International guidelines adopt risk stratification approach to manage patients with low-risk febrile neutropenia patients. We developed this out-patient program using shared-care model with professional input and patient empowerment, so as to reduce patients' psychological burden from hospitalization and to improve the cost-effectiveness of management. METHOD: This is a prospective cohort study to compare the efficacy and safeness of the out-patient program when compared with traditional in-patient care...
March 20, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
Maïté Van Cauter, Olivier Cornu, Jean-Cyr Yombi, Hector Rodriguez-Villalobos, Ludovic Kaminski
BACKGROUND: Prosthetic Joint Infection (PJI) is a rare but devastating complications with high morbitity and mortality. The identification of the causal microorganism remains crucial and determines therapeutic strategies and success. Microbiology cultures remain the common method to diagnose PJI. Unfortunately, 14% of intra-articular punctures remain negative after culture. The microorganisms are best detected by inoculation of microbiology samples in blood culture bottles (Bactec), or after sonication of the implant and polymerase chain reaction (PCR)...
2018: PloS One
M Cynthia Logsdon, Deborah Winders Davis, John A Myers, Katlin M Masterson, Jeffrey A Rushton, Adrian P Lauf
PURPOSE: The purpose of this study was to describe new mothers' knowledge related to maternal mortality. STUDY DESIGN AND METHODS: Using a cross-sectional design, new mothers were recruited from a postpartum unit of an academic health sciences center where the population was predominately low-income women. Before hospital discharge, they answered questions on their knowledge of potential postpartum complications that could lead to maternal mortality. Questions were based on recommendations from an expert nursing panel...
March 16, 2018: MCN. the American Journal of Maternal Child Nursing
Idrees Salam, Jakob Hartvig Thomsen, Jesper Kjaergaard, John Bro-Jeppesen, Martin Frydland, Matilde Winther-Jensen, Lars Køber, Michael Wanscher, Christian Hassager, Helle Søholm
OBJECTIVE: Comorbidity prior to out-of-hospital cardiac arrest (OHCA) and primary rhythm in relation to survival is not well established. We aimed to assess the prognostic importance of comorbidity in relation to primary rhythm in OHCA-patients treated with Target Temperature Management (TTM). DESIGN: Consecutive comatose survivors of OHCA treated with TTM in hospitals in the Copenhagen area between 2002-2011 were included. Utstein-based pre- and in-hospital data collection was performed...
March 19, 2018: Scandinavian Cardiovascular Journal: SCJ
Dale A Halbritter, Nicholas M Teets, Caroline M Williams, Jaret C Daniels
Predicting how rapid climate change will affect terrestrial biota depends on a thorough understanding of an organism's biology and evolutionary history. Organisms at their range boundaries are particularly sensitive to climate change. As predominantly terrestrial poikilotherms, insects are often geographically limited by extremes in ambient temperatures. We compared the cold hardiness strategies of two geographically widespread butterflies, the pine white, Neophasia menapia, and the Mexican pine white, N. terlooii (Lepidoptera: Pieridae), at the near-contact zone of their range boundaries...
March 15, 2018: Journal of Insect Physiology
Silas C Principe, Alessandra Augusto, Tânia Marcia Costa
Temperature is one of the main environmental constraints to organism distribution, affecting physiology and survival. Organisms that inhabit the intertidal zone are exposed to temperature variation and, with climate change, they should face different conditions which include higher temperatures, leading to higher rates of water loss through evaporation and then fitness reduction or mortality. Here we tested the effects of desiccation and increased temperature in two fiddler crabs species that occupy distinct habitats in regard to vegetation cover and position on the intertidal zone and thus may respond differently to these stressors...
April 2018: Journal of Thermal Biology
Jacek A Koziel, Heekwon Ahn, Thomas D Glanville, Timothy S Frana, J Hans van Leeuwen, Lam T Nguyen
Nearly 55,000 outbreaks of animal disease were reported to the World Animal Health Information Database between 2005 and 2016. To suppress the spread of disease, large numbers of animal mortalities often must be disposed of quickly and are frequently buried on the farm where they were raised. While this method of emergency disposal is fast and relatively inexpensive, it also can have undesirable and lasting impacts (slow decay, concerns about groundwater contamination, pathogens re-emergence, and odor). Following the 2010 foot-and-mouth disease outbreak, the Republic of Korea's National Institute of Animal Science funded research on selected burial alternatives or modifications believed to have potential to reduce undesirable impacts of burial...
March 13, 2018: Waste Management
Maryam Dastoorpoor, Gholamreza Goudarzi, Narges Khanjani, Esmaeil Idani, Hamidreza Aghababaeian, Abbas Bahrampour
OBJECTIVES: There are few studies about the association between breathing polluted air and increased risk of cardiovascular diseases and cardiac death in the Middle East. This study aimed to investigate the relation between air pollutants and cardiovascular mortality (based on ICD-10) in Ahvaz. MATERIAL AND METHODS: In this ecological study, the data about cardiovascular disease mortality and air pollutants from March 2008 until March 2015 was inquired from the Ahvaz City Authority and the Khuzestan Province Environmental Protection Agency...
March 15, 2018: International Journal of Occupational Medicine and Environmental Health
Shigeki Kushimoto, Satoshi Gando, Hiroshi Ogura, Yutaka Umemura, Daizoh Saitoh, Toshihiko Mayumi, Seitaro Fujishima, Toshikazu Abe, Atsushi Shiraishi, Hiroto Ikeda, Joji Kotani, Yasuo Miki, Shin-Ichiro Shiraishi, Koichiro Suzuki, Yasushi Suzuki, Naoshi Takeyama, Kiyotsugu Takuma, Ryosuke Tsuruta, Yoshihiro Yamaguchi, Norio Yamashita, Naoki Aikawa
BACKGROUND: Although the quick Sequential Organ Failure Assessment (qSOFA) has been recommended for identifying patients at higher risk of hospital death, it has only a 60% sensitivity for in-hospital mortality. On the other hand, hypothermia associates with increased mortality and organ failure in patients with sepsis. This study aimed to assess the predictive validity of qSOFA for identifying patients with sepsis at higher risk of multiple organ dysfunction or death and the complementary effect of hypothermia...
January 1, 2018: Journal of Intensive Care Medicine
Jennifer Carns, Kondwani Kawaza, M K Quinn, Yinsen Miao, Rudy Guerra, Elizabeth Molyneux, Maria Oden, Rebecca Richards-Kortum
BACKGROUND: Neonatal hypothermia is widely associated with increased risks of morbidity and mortality, but remains a pervasive global problem. No studies have examined the impact of hypothermia on outcomes for preterm infants treated with CPAP for respiratory distress syndrome (RDS). METHODS: This retrospective analysis assessed the impact of hypothermia on outcomes of 65 neonates diagnosed with RDS and treated with either nasal oxygen (N = 17) or CPAP (N = 48) in a low-resource setting...
2018: PloS One
Bjørn Arne Rukke, Ranjeni Sivasubramaniam, Tone Birkemoe, Anders Aak
Sublethal heat stress may weaken bed bug infestations to potentially ease control. In the present study, experimental populations exposed to 34, 36 or 38°C for 2 or 3 weeks suffered significant mortality during exposure. Among survivors, egg production, egg hatching, moulting success and offspring proliferation decreased significantly in the subsequent 7 week recovery period at 22°C. The overall population success was negatively impacted by increasing temperature and duration of the stress. Such heat stress is inadequate as a single tool for eradication, but may be included as a low cost part of an integrated pest management protocol...
2018: PloS One
Michael E Wyde, Thomas L Horn, Myles H Capstick, John M Ladbury, Galen Koepke, Perry F Wilson, Grace E Kissling, Matthew D Stout, Niels Kuster, Ronald L Melnick, James Gauger, John R Bucher, David L McCormick
Radiofrequency radiation (RFR) causes heating, which can lead to detrimental biological effects. To characterize the effects of RFR exposure on body temperature in relation to animal size and pregnancy, a series of short-term toxicity studies was conducted in a unique RFR exposure system. Young and old B6C3F1 mice and young, old, and pregnant Harlan Sprague-Dawley rats were exposed to Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) RFR (rats = 900 MHz, mice = 1,900 MHz) at specific absorption rates (SARs) up to 12 W/kg for approximately 9 h a day for 5 days...
March 14, 2018: Bioelectromagnetics
Cheng Wan-Ting, Pan Xiang, Yang Ya, Yang Yu, Li Lin-Han, He Zhong, Cai Bin, Wan Wei, Jiang Jie, Jiang Qing-Wu, Zhou Yi-Biao
OBJECTIVE: To explore the dynamic changes of Oncomelania hupensis snail densities in autumn and winter and the relationship between hydrological and meteorological factors and snail growth and decline. METHODS: From Octobers to Decembers of 2007 to 2014, a bottomland close to eastern Dongting Lake was selected as the study field. The snails and elevation of the points were surveyed, and the hydrological and meteorological data were collected. The snail densities and death rates of every month were calculated...
December 11, 2017: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
Mackensie A Yore, Matthew C Strehlow, Lily D Yan, Elizabeth A Pirrotta, Joan L Woods, Koy Somontha, Yim Sovannra, Lauren Auerbach, Rebecca Backer, Christophe Grundmann, Swaminatha V Mahadevan
BACKGROUND: Emergency medicine is a young specialty in many low- and middle-income countries (LMICs). Although many patients seeking emergency or acute care are children, little information is available about the needs and current treatment of this group in LMICs. In this observational study, we sought to describe characteristics, chief complaints, management, and outcomes of children presenting for unscheduled visits to two Cambodian public hospitals. METHODS: Children enrolled in the study presented without appointment for treatment at one of two Cambodian public referral hospitals during a 4-week period in 2012...
March 13, 2018: International Journal of Emergency Medicine
Yong Soo Cho, Byung Kook Lee, Dong Hun Lee, Yong Hun Jung, Sung Min Lee, Jung Soo Park, Kyung Woon Jeung
PURPOSE: The optimal timing for measurement of neutrophil gelatinase-associated lipocalin (NGAL) level to predict acute kidney injury (AKI) and prognosis in cardiac arrest (CA) survivors has not been elucidated. We aimed to compare the diagnostic and prognostic performance of NGAL levels after return of spontaneous circulation (ROSC) and at 48 h after CA. METHODS: We included 231 adult cardiac arrest survivors who underwent targeted temperature management between May 2013 and December 2016...
March 13, 2018: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
Johanna R Ohm, Francesco Baldini, Priscille Barreaux, Thierry Lefevre, Penelope A Lynch, Eunho Suh, Shelley A Whitehead, Matthew B Thomas
The time it takes for malaria parasites to develop within a mosquito, and become transmissible, is known as the extrinsic incubation period, or EIP. EIP is a key parameter influencing transmission intensity as it combines with mosquito mortality rate and competence to determine the number of mosquitoes that ultimately become infectious. In spite of its epidemiological significance, data on EIP are scant. Current approaches to estimate EIP are largely based on temperature-dependent models developed from data collected on parasite development within a single mosquito species in the 1930s...
March 12, 2018: Parasites & Vectors
S Druyan, M Ruzal, D Shinder, A Haron
The prenatal circulatory system is adaptive and capable of plasticity designed for the needs of the growing tissue. When a broiler embryo is faced with hypoxic stress, the process of angiogenesis in tissues begins. Exposure to hypoxic conditions of 17% oxygen during the chorioallantoic membrane (CAM) development (E5 to E12) affected the circulatory system and contributed to an increase in the blood oxygen carrying capacity. The present study aimed to evaluate the effects of hypoxic exposure during CAM development on post-hatch performance of broilers and to examine whether hypoxic exposure improved sustainability of birds exposed to acute heat stress...
March 8, 2018: Poultry Science
Michal A Karlinski, Jan P Bembenek, Anna Baranowska, Iwona Kurkowska-Jastrzebska, Anna Czlonkowska
BACKGROUND: Implementation of modern stroke unit care might have attenuated the negative effect of infections on stroke outcome. Our aim was to investigate changes in the occurrence of pneumonia and urinary infections diagnosed after admission to experienced Polish stroke center between 1995 and 2015, and their association with hospital mortality. MATERIALS AND METHODS: This is a retrospective registry-based analysis of consecutive patients with acute stroke from highly urbanized area (Warsaw, Poland) in years 1995-2015...
March 8, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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