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https://www.readbyqxmd.com/read/29443862/red-tides-mass-casualty-and-whole-blood-at-sea-red-tides
#1
Benjamin T Miller, Andrew H Lin, Susan C Clark, Andrew P Cap, Joseph J Dubose
BACKGROUND: The U.S. Navy's casualty-receiving ships provide remote damage control resuscitation (RDCR) platforms to treat injured combatants deployed afloat and ashore. We report a significant mass casualty incident aboard the USS Bataan, and the most warm fresh whole blood (WFWB) transfused at sea for traumatic hemorrhagic shock since the Vietnam War. METHODS: Casualty-receiving ships have robust medical capabilities, including a frozen blood bank with packed red blood cells (pRBC) and fresh frozen plasma (FFP)...
February 13, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29442224/vitamin-c-and-sodium-bicarbonate-enhance-the-antioxidant-ability-of-h9c2-cells-and-induce-hsps-to-relieve-heat-stress
#2
Bin Yin, Shu Tang, Jiarui Sun, Xiaohui Zhang, Jiao Xu, Liangjiao Di, Zhihong Li, Yurong Hu, Endong Bao
Heat stress is exacerbated by global warming and affects human and animal health, leading to heart damage caused by imbalances in reactive oxygen species (ROS) and the antioxidant system, acid-base chemistry, electrolytes and respiratory alkalosis. Vitamin C scavenges excess ROS, and sodium bicarbonate maintains acid-base and electrolyte balance, and alleviates respiratory alkalosis. Herein, we explored the ability of vitamin C alone and in combination with equimolar sodium bicarbonate (Vitamin C-Na) to stimulate endogenous antioxidants and heat shock proteins (HSPs) to relieve heat stress in H9C2 cells...
February 13, 2018: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29413927/temporal-acclimation-of-microchloropsis-gaditana-ccmp526-in-response-to-hypersalinity
#3
Anbarasu Karthikaichamy, Pranali Deore, Sanjeeva Srivastava, Ross Coppel, Dieter Bulach, John Beardall, Santosh Noronha
Evaporation from culture ponds and raceways can subject algae to hypersalinity stress, and this is exacerbated by global warming. We investigated the effect of salinity on a marine microalga, Microchloropsis gaditana, which is of industrial significance because of its high lipid-accumulating capability. Both short-term (hours) and medium-term (days) effects of salinity were studied across various salinities (37.5, 55, 70 and 100 PSU). Salinity above 55 PSU suppressed cell growth and specific growth rate was significantly reduced at 100 PSU...
January 16, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29412486/chromosomal-inversions-promote-genomic-islands-of-concerted-evolution-of-hsp70-genes-in-the-drosophila-subobscura-species-subgroup
#4
Marta Puig Giribets, María Pilar García Guerreiro, Mauro Santos, Francisco J Ayala, Rosa Tarrío, Francisco Rodríguez-Trelles
Heat-shock (HS) assays to understand the connection between standing inversion variation and evolutionary response to climate change in D. subobscura found that "warm-climate" inversion O3+4 exhibits non-HS levels of Hsp70 protein like those of "cold-climate" OST after HS induction. This was unexpected, as overexpression of Hsp70 can incur multiple fitness costs. To understand the genetic basis of this finding, we have determined the genomic sequence organization of the Hsp70 family in four different inversions, including OST , O3+4 , O3+4+8 and O3+4+16 , using as outgroups the remainder of the subobscura species subgroup, namely D...
February 7, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29376698/measurement-of-preheat-due-to-nonlocal-electron-transport-in-warm-dense-matter
#5
K Falk, M Holec, C J Fontes, C L Fryer, C W Greeff, H M Johns, D S Montgomery, D W Schmidt, M Šmíd
This Letter presents a novel approach to study electron transport in warm dense matter. It also includes the first x-ray Thomson scattering (XRTS) measurement from low-density CH foams compressed by a strong laser-driven shock at the OMEGA laser facility. The XRTS measurement is combined with velocity interferometry (VISAR) and optical pyrometry (SOP) providing a robust measurement of thermodynamic conditions in the shock. Evidence of significant preheat contributing to elevated temperatures reaching 17.5-35 eV in shocked CH foam is measured by XRTS...
January 12, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29364910/climatic-shocks-associate-with-innovation-in-science-and-technology
#6
Carsten K W De Dreu, Mathijs A van Dijk
Human history is shaped by landmark discoveries in science and technology. However, across both time and space the rate of innovation is erratic: Periods of relative inertia alternate with bursts of creative science and rapid cascades of technological innovations. While the origins of the rise and fall in rates of discovery and innovation remain poorly understood, they may reflect adaptive responses to exogenously emerging threats and pressures. Here we examined this possibility by fitting annual rates of scientific discovery and technological innovation to climatic variability and its associated economic pressures and resource scarcity...
2018: PloS One
https://www.readbyqxmd.com/read/29354927/-startup-mechanism-of-moxibustion-warming-and-dredging-function
#7
Kaiyu Huang, Shuang Liang, Zheng Sun, Jianbin Zhang
With "moxibustion" and "warm stimulation" as the keywords, the literature on moxibustion mechanism of warming and dredging from June 1st, 1995 to June 1st, 2016 was collected from PubMed, China National Knowledge Infrastructure (CNKI) and Wanfang database. The startup mechanism of moxibustion warming and dredging function was analyzed in terms of moxibustion warming stimulation. The results were found that moxibustion was based on local rising temperature of acupoint. It activated local specific receptors, heat sensitive immune cells, heat shock proteins and so on to start the warming and dredging function and produce various local effects...
September 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29347225/first-principles-equation-of-state-and-shock-compression-predictions-of-warm-dense-hydrocarbons
#8
Shuai Zhang, Kevin P Driver, François Soubiran, Burkhard Militzer
We use path integral Monte Carlo and density functional molecular dynamics to construct a coherent set of equations of state (EOS) for a series of hydrocarbon materials with various C:H ratios (2:1, 1:1, 2:3, 1:2, and 1:4) over the range of 0.07-22.4gcm^{-3} and 6.7×10^{3}-1.29×10^{8}K. The shock Hugoniot curve derived for each material displays a single compression maximum corresponding to K-shell ionization. For C:H = 1:1, the compression maximum occurs at 4.7-fold of the initial density and we show radiation effects significantly increase the shock compression ratio above 2 Gbar, surpassing relativistic effects...
July 2017: Physical Review. E
https://www.readbyqxmd.com/read/29237575/acclimation-capacity-of-the-cardiac-hsp70-and-hsp90-response-to-thermal-stress-in-lake-trout-salvelinus-namaycush-a-stenothermal-ice-age-relict
#9
Nicholas I Kelly, Chris C Wilson, Suzanne Currie, Gary Burness
The ability of cold-adapted species to persist in the face of climate change will depend on the capacity of individuals for thermal acclimation, adaptation, and the degree of physiological variation that exists among populations. We tested the acclimation capacity of cardiac HSP70 and HSP90 in four populations of lake trout (Salvelinus namaycush), a cold-adapted salmonid. We acclimated fish to four temperatures (8°C, 11°C, 15°C, and 19°C) and measured cardiac HSP70 and HSP90 levels by western blot prior to and following an acute (1h) heat shock at 23°C...
December 10, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29158138/different-ecophysiological-responses-of-freshwater-fish-to-warming-and-acidification
#10
Tiago F Jesus, Inês C Rosa, Tiago Repolho, Ana R Lopes, Marta S Pimentel, Vera M F Almeida-Val, Maria M Coelho, Rui Rosa
Future climate change scenarios predict threatening outcomes to biodiversity. Available empirical data concerning biological response of freshwater fish to climate change remains scarce. In this study, we investigated the physiological and biochemical responses of two Iberian freshwater fish species (Squalius carolitertii and the endangered S. torgalensis), inhabiting different climatic conditions, to projected future scenarios of warming (+3°C) and acidification (ΔpH=-0.4). Herein, metabolic enzyme activities of glycolytic (citrate synthase - CS, lactate dehydrogenase - LDH) and antioxidant (glutathione S-transferase, catalase and superoxide dismutase) pathways, as well as the heat shock response (HSR) and lipid peroxidation were determined...
November 17, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29151575/new-science-of-climate-change-impacts-on-agriculture-implies-higher-social-cost-of-carbon
#11
Frances C Moore, Uris Baldos, Thomas Hertel, Delavane Diaz
Despite substantial advances in climate change impact research in recent years, the scientific basis for damage functions in economic models used to calculate the social cost of carbon (SCC) is either undocumented, difficult to trace, or based on a small number of dated studies. Here we present new damage functions based on the current scientific literature and introduce these into an integrated assessment model (IAM) in order to estimate a new SCC. We focus on the agricultural sector, use two methods for determining the yield impacts of warming, and the GTAP CGE model to calculate the economic consequences of yield shocks...
November 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/29146915/transcriptional-profiling-provides-new-insights-into-the-role-of-nitric-oxide-in-enhancing-ganoderma-oregonense-resistance-to-heat-stress
#12
Cheng Chen, Qiang Li, Qiangfeng Wang, Daihua Lu, Hong Zhang, Jian Wang, Rongtao Fu
Ganoderma is well known for its use in traditional Chinese medicine and is widely cultivated in China, Korea, and Japan. Increased temperatures associated with global warming are negatively influencing the growth and development of Ganoderma. Nitric oxide is reported to play an important role in alleviating fungal heat stress (HS). However, the transcriptional profiling of Ganoderma oregonense in response to HS, as well as the transcriptional response regulated by NO to cope with HS has not been reported. We used RNA-Seq technology to generate large-scale transcriptome data from G...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29142326/complex-organic-molecules-in-strongly-uv-irradiated-gas
#13
S Cuadrado, J R Goicoechea, J Cernicharo, A Fuente, J Pety, B Tercero
We investigate the presence of complex organic molecules (COMs) in strongly UV-irradiated interstellar molecular gas. We have carried out a complete millimetre (mm) line survey using the IRAM 30 m telescope towards the edge of the Orion Bar photodissociation region (PDR), close to the H2 dissociation front, a position irradiated by a very intense far-UV (FUV) radiation field. These observations have been complemented with 8.5″ resolution maps of the H2CO JKa,Kc = 51,5 → 41,4 and C(18)O J = 3 → 2 emission at 0...
July 2017: Astronomy and Astrophysics
https://www.readbyqxmd.com/read/29133228/effects-of-cold-acclimation-on-rectal-macromorphology-ultrastructure-and-cytoskeletal-stability-in-gryllus-pennsylvanicus-crickets
#14
Lauren E Des Marteaux, Joseph R Stinziano, Brent J Sinclair
Cold-acclimated insects maintain ion and water balance in the cold, potentially by reducing permeability or increasing diffusion distance across ionoregulatory epithelia such as the rectum. We explored whether cold acclimation induces structural modifications that minimize water and ion diffusion across the rectum and maintain rectal cell integrity. We investigated rectal structure and cytoskeletal stability in chill-susceptible adult Gryllus pennsylvanicus crickets acclimated for one week to either warm (25°C) or cold (12°C) conditions...
November 10, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/29132006/ocean-acidification-dampens-physiological-stress-response-to-warming-and-contamination-in-a-commercially-important-fish-argyrosomus-regius
#15
Eduardo Sampaio, Ana R Lopes, Sofia Francisco, Jose R Paula, Marta Pimentel, Ana L Maulvault, Tiago Repolho, Tiago F Grilo, Pedro Pousão-Ferreira, António Marques, Rui Rosa
Increases in carbon dioxide (CO2) and other greenhouse gases emissions are changing ocean temperature and carbonate chemistry (warming and acidification, respectively). Moreover, the simultaneous occurrence of highly toxic and persistent contaminants, such as methylmercury, will play a key role in further shaping the ecophysiology of marine organisms. Despite recent studies reporting mostly additive interactions between contaminant and climate change effects, the consequences of multi-stressor exposure are still largely unknown...
November 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29126631/antioxidant-response-to-heat-stress-in-seagrasses-a-gene-expression-study
#16
O Tutar, L Marín-Guirao, J M Ruiz, G Procaccini
Seawater warming associated to the ongoing climate change threatens functioning and survival of keystone coastal benthic species such as seagrasses. Under elevated temperatures, the production of reactive oxygen species (ROS) is increased and plants must activate their antioxidant defense mechanisms to protect themselves from oxidative damage. Here we explore from a molecular perspective the ability of Mediterranean seagrasses to activate heat stress response mechanisms, with particular focus on antioxidants...
December 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/29052324/effect-of-heat-stress-during-in-vitro-maturation-on-developmental-competence-of-vitrified-bovine-oocytes
#17
M Vendrell-Flotats, N Arcarons, E Barau, M López-Béjar, T Mogas
Heat-shock protein 70 (HSP70) plays a crucial role as intracellular cytoprotectant and molecular chaperone. A phenomenon of heat stress (HS) leads to production of these proteins that could be beneficial to cells during cryopreservation, which is also a stressful process for the cell. This study aimed to evaluate the protective effect of exposure of bovine oocytes to moderate HS during in vitro maturation (IVM) prior vitrification. First, oocytes were subjected to HS (41.5°C for 1 hr) at 0, 4, 8, 12 or 16 of IVM...
October 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29045028/biological-effects-of-er-yag-laser-irradiation-on-the-proliferation-of-primary-human-gingival-fibroblasts
#18
Sophannary Kong, Akira Aoki, Kengo Iwasaki, Koji Mizutani, Sayaka Katagiri, Tomonari Suda, Shizuko Ichinose, Mayumi Ogita, Verica Pavlic, Yuichi Izumi
We investigated the biological effects of Er:YAG laser (2,940-nm; DELight(®) , HOYA ConBio, USA) irradiation at fluences of 3.6, 4.2, 4.9, 6.3, 8.1, or 9.7 J cm(-2) at 20 or 30 Hz for 20 or 30 s on primary human gingival fibroblasts (HGFs). Irradiation at 6.3 J cm(-2) promoted maximal cell proliferation, determined by WST-8 assay and crystal violet staining, but was accompanied by lactate dehydrogenase release, on day 3 post-irradiation. Elevation of ATP level, Ki67 staining, and cyclin-A2 mRNA expression confirmed that Er:YAG affected the cell cycle and increased the number of proliferating cells...
October 17, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28977817/global-warming-and-obesity-a-systematic-review
#19
REVIEW
R An, M Ji, S Zhang
Global warming and the obesity epidemic are two unprecedented challenges mankind faces today. A literature search was conducted in the PubMed, Web of Science, EBSCO and Scopus for articles published until July 2017 that reported findings on the relationship between global warming and the obesity epidemic. Fifty studies were identified. Topic-wise, articles were classified into four relationships - global warming and the obesity epidemic are correlated because of common drivers (n = 21); global warming influences the obesity epidemic (n = 13); the obesity epidemic influences global warming (n = 13); and global warming and the obesity epidemic influence each other (n = 3)...
October 4, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28956008/skin-mucus-proteins-of-lumpsucker-cyclopterus-lumpus
#20
Deepti Manjari Patel, Monica F Brinchmann
Fish skin mucus serves as a first line of defense against pathogens and external stressors. In this study the proteomic profile of lumpsucker skin mucus was characterized using 2D gels coupled with tandem mass spectrometry. Mucosal proteins were identified by homology searches across the databases SwissProt, NCBInr and vertebrate EST. The identified proteins were clustered into ten groups based on their gene ontology biological process in PANTHER (www.patherdb.org). Calmodulin, cystatin-B, histone H2B, peroxiredoxin1, apolipoprotein A1, natterin-2, 14-3-3 protein, alfa enolase, pentraxin, warm temperature acclimation 65 kDa (WAP65kDa) and heat shock proteins were identified...
March 2017: Biochemistry and Biophysics Reports
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