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https://www.readbyqxmd.com/read/28731987/evidence-of-heritable-determinants-of-decompression-sickness-in-rats
#1
Jacky Lautridou, Peter Buzzacott, Marc Belhomme, Emmanuel Dugrenot, Pierre Lafère, Costantino Balestra, François Guerrero
INTRODUCTION: Decompression sickness (DCS) is a complex and poorly understood systemic disease caused by inadequate desaturation following a decrease of ambient pressure. Strong variability between individuals is observed for DCS occurrence. This raises questions concerning factors that may be involved in the inter-individual variability of DCS occurrence. This study aimed to experimentally assess the existence of heritable factors involved in DCS occurrence by selectively breeding individuals resistant to DCS from a population stock of wistar rats...
July 20, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28728016/location-location-location-microglia-are-where-they-live
#2
Margaret M McCarthy
A deep dive into microglia form and function reveals startling regional heterogeneity in number, morphology, activity, and transcriptomics in nuclei relevant to motor control and motivation (De Biase et al., 2017). Differences appear 2 weeks after birth, and depletion and recolonization in adulthood recapitulate the original phenotype, implicating local environment as mediators of microglial phenotype.
July 19, 2017: Neuron
https://www.readbyqxmd.com/read/28725435/biogeophysical-and-physiological-processes-drive-movement-patterns-in-a-marine-predator
#3
Lucy A Howey, Bradley M Wetherbee, Emily R Tolentino, Mahmood S Shivji
BACKGROUND: Blue sharks (Prionace glauca) are among the most abundant and widely distributed of oceanic elasmobranchs. Millions are taken annually in pelagic longline fisheries and comprise the highest component of auctioned fin weight in the international shark fin trade. Though studies of blue sharks outnumber those of other large pelagic sharks, the species' complicated and sexually segregated life history still confound current understanding of Atlantic movement patterns. Lack of detailed information regarding movement and vertical behavior continues to limit management efforts that require such data for stock assessment and sustainable catch modeling...
2017: Movement Ecology
https://www.readbyqxmd.com/read/28725377/environmental-variability-and-population-dynamics-do-european-and-north-american-ducks-play-by-the-same-rules
#4
Hannu Pöysä, Jukka Rintala, Douglas H Johnson, Jukka Kauppinen, Esa Lammi, Thomas D Nudds, Veli-Matti Väänänen
Density dependence, population regulation, and variability in population size are fundamental population processes, the manifestation and interrelationships of which are affected by environmental variability. However, there are surprisingly few empirical studies that distinguish the effect of environmental variability from the effects of population processes. We took advantage of a unique system, in which populations of the same duck species or close ecological counterparts live in highly variable (north American prairies) and in stable (north European lakes) environments, to distinguish the relative contributions of environmental variability (measured as between-year fluctuations in wetland numbers) and intraspecific interactions (density dependence) in driving population dynamics...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28725062/dive-to-the-underwater-world-a-water-immersion-technique-for-endoscopic-submucosal-dissection-of-gastric-neoplasms
#5
Tomofumi Akasaka, Yusuke Tonai, Kenta Hamada, Yoji Takeuchi, Noriya Uedo, Ryu Ishihara, Hiroyasu Iishi
No abstract text is available yet for this article.
July 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28724705/apparent-changes-in-body-insulation-of-juvenile-king-penguins-suggest-an-energetic-challenge-during-their-early-life-at-sea
#6
Manfred R Enstipp, Charles-André Bost, Céline Le Bohec, Caroline Bost, Yvon Le Maho, Henri Weimerskirch, Yves Handrich
Little is known about the early life at sea of marine top predators, like deep-diving king penguins (Aptenodytes patagonicus), although this dispersal phase is probably a critical phase in their life. Apart from finding favourable foraging sites, they have to develop effective prey search patterns as well as physiological capacities that enable them to capture sufficient prey to meet their energetic needs. To investigate the ontogeny of their thermoregulatory responses at sea, we implanted 30 juvenile king penguins and 8 adult breeders with a small data logger that recorded pressure and subcutaneous temperature continuously for up to 2...
July 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28724286/deep-dive-targeted-quantification-for-ultrasensitive-analysis-of-proteins-in-non-depleted-human-blood-plasma-serum-and-tissues
#7
Song Nie, Tujin Shi, Thomas L Fillmore, Athena A Schepmoes, Heather Brewer, Yuqian Gao, Ehwang Song, Hui Wang, Karin D Rodland, Wei-Jun Qian, Richard D Smith, Tao Liu
Mass spectrometry-based targeted proteomics (e.g., selected reaction monitoring, SRM) is emerging as an attractive alternative to immunoassays for protein quantification. Recently we have made significant progress in SRM sensitivity for enabling quantification of low ng/mL to sub-ng/mL level proteins in non-depleted human blood plasma/serum without affinity enrichment. However, precise quantification of extremely low abundance proteins (e.g., ≤100 pg/mL in blood plasma/serum) using targeted proteomics approaches still remains challenging, especially for these samples without available antibodies for enrichment...
July 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28716483/clinically-relevant-fungi-in-water-and-on-surfaces-in-an-indoor-swimming-pool-facility
#8
Yuli Ekowati, Anne D van Diepeningen, Giuliana Ferrero, Maria D Kennedy, Ana Maria de Roda Husman, Franciska M Schets
The density of fungal contamination and the fungal diversity in an indoor swimming pool facility were assessed. A total of 16 surface samples and 6 water samples were analysed by using a combination of different (semi-) selective culture media. Isolated fungal colonies were identified to the genus or species level by sequencing of the internal transcribed spacer (ITS). The highest fungal counts in water and on surfaces were in the recreational pool (17CFU/100mL) and on a flexibeam (5.8CFU/cm(2)), respectively as compared with low counts (<0...
July 10, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28713142/a-deep-dive-into-community-engagement
#9
Rebecca Dresser
Community engagement offers opportunities to enhance the value of health research. Through engaging with community partners, researchers can pursue projects that produce meaningful benefits for study populations. At the same time, engagement presents challenges for everyone involved. High-quality engagement requires attending to the choice of community partners, the ethics of engagement, education for researchers and community partners, project planning, and the distinct knowledge that experienced research subjects can contribute to engagement activities...
2017: Narrative Inquiry in Bioethics
https://www.readbyqxmd.com/read/28701646/an-adult-case-of-anaphylaxis-caused-by-allergy-to-jellyfish
#10
Shintaro Suzuki, Yoshito Miyata, Megumi Jinno, Yasunari Kishino, Tetsuya Homma, Shin Ota, Akihiko Tanaka, Takuya Yokoe, Tsukasa Ohnishi, Hironori Sagara, Naomi Kurata, Kuniyoshi Shimakura, Kouichi Kurose
A 35-year-old female, professional diver, reported nausea, vomiting, and systemic hives 20 to 30 minutes after ingestion of antipasto made with jellyfish. Patient reported prior episodes of swelling after stings from several different creatures, including jelly fish. She also developed a systemic allergic reaction after sting from an unknown creature while diving. On the initial visit to our hospital, serum total IgE level was 545IU/ml. We extracted crude allergen from jellyfish and evaluated allergen specific IgE antibody levels using ELISA...
2017: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/28699708/-immersion-pulmonary-edema
#11
Benoît Desgraz, Claudio Sartori, Mathieu Saubade, Francis Héritier, Vincent Gabus
Immersion pulmonary edema may occur during scuba diving, snorke-ling or swimming. It is a rare and often recurrent disease, mainly affecting individuals aged over 50 with high blood pressure. However it also occurs in young individuals with a healthy heart. The main symptoms are dyspnea, cough and hemoptysis. The outcome is often favorable under oxygen treatment but deaths are reported. A cardiac and pulmonary assessment is necessary to evaluate the risk of recurrence and possible contraindications to immersion...
July 12, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28697581/altered-gray-matter-volume-and-functional-connectivity-of-the-motor-network-in%C3%A2-young%C3%A2-divers
#12
Xia Liu, Liansheng Liu, Fen Hou, Zhifeng Zhou, Qingying Wu, Hengguo Li
BACKGROUND: Motor learning and professional sports training can induce plastic changes in brain structures that are associated with distinct training demands. OBJECTIVE: To testify the hypothesis of that regional gray matter structures in the motor-related cortex and its functional connectivity (FC) are altered in young divers. METHODS: We undertook T1-voxel-based morphometry (VBM) structural and resting-state functional magnetic resonance imaging in groups of diving athletes (DAs) and demographically-matched healthy controls...
July 7, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/28694838/how-animals-distribute-themselves-in-space-variable-energy-landscapes
#13
Juan F Masello, Akiko Kato, Julia Sommerfeld, Thomas Mattern, Petra Quillfeldt
BACKGROUND: Foraging efficiency determines whether animals will be able to raise healthy broods, maintain their own condition, avoid predators and ultimately increase their fitness. Using accelerometers and GPS loggers, features of the habitat and the way animals deal with variable conditions can be translated into energetic costs of movement, which, in turn, can be translated to energy landscapes.We investigated energy landscapes in Gentoo Penguins Pygoscelis papua from two colonies at New Island, Falkland/Malvinas Islands...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28694723/does-recreational-scuba-diving-have-clinically-significant-effect-on-routine-haematological-parameters
#14
Antonija Perovic, Nora Nikolac, Marina Njire Braticevic, Ana Milcic, Sandra Sobocanec, Tihomir Balog, Sanja Dabelic, Jerka Dumic
INTRODUCTION: Scuba diving represents a combination of exercise and changes in environmental conditions. This study aimed to evaluate changes in haematological parameters after recreational scuba diving in order to identify clinically significant changes. MATERIALS AND METHODS: The study included males, 17 recreational divers, median age (range) 41 (30-52) years. Blood samples were taken before diving, immediately after diving to 30 meters for 30 minutes, 3 hours and 6 hours after diving...
June 15, 2017: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/28686738/correction-assessment-of-chronic-sublethal-effects-of-imidacloprid-on-honey-bee-colony-health
#15
Galen P Dively, Michael S Embrey, Alaa Kamel, David J Hawthorne, Jeffery S Pettis
[This corrects the article DOI: 10.1371/journal.pone.0118748.].
2017: PloS One
https://www.readbyqxmd.com/read/28685100/prevention-of-diving-induced-spinal-cord-injuries-preliminary-results-of-the-first-romanian-mass-media-prophylactic-educational-intervention
#16
Aurelian Anghelescu
STUDY DESIGN: The study was an observational study of the seasonal incidence of diving accidents, according to the summer weather pattern and the influence of an educative prophylactic intervention. OBJECTIVES: The study analyzed the preliminary results of a national project, disseminated on social networking (Facebook) and broadcasted on main national and international Romanian TV channels. SETTING: The study was conducted at the Neurorehabilitation, Teaching Emergency Hospital 'Bagdasar-Arseni...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28684503/diving-into-the-depths-of-atopic-dermatitis
#17
EDITORIAL
Lindsey Pujanandez
No abstract text is available yet for this article.
July 7, 2017: Science
https://www.readbyqxmd.com/read/28680673/climate-change-transgenic-corn-adoption-and-field-evolved-resistance-in-corn-earworm
#18
P Dilip Venugopal, Galen P Dively
Increased temperature anomaly during the twenty-first century coincides with the proliferation of transgenic crops containing the bacterium Bacillus thuringiensis (Berliner) (Bt) to express insecticidal Cry proteins. Increasing temperatures profoundly affect insect life histories and agricultural pest management. However, the implications of climate change on Bt crop-pest interactions and insect resistance to Bt crops remains unexamined. We analysed the relationship of temperature anomaly and Bt adoption with field-evolved resistance to Cry1Ab Bt sweet corn in a major pest, Helicoverpa zea (Boddie)...
June 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28679256/application-of-dual-frequency-identification-sonar-for-the-study-of-deep-diving-odontocetes-prey-fields
#19
Giacomo Giorli, Whitlow W L Au
A dual frequency identification sonar was used to estimate density and size of potential deep diving odontocetes' prey in deep sea scattering layers in Hawaii. Size distributions data showed a bimodal pattern, with a population of data above the 50 cm of length, possibly big squids, and a population of data below 50 cm, mainly micronekton. The number of animals bigger than 50 cm was correlated with the length of the peak of the frequency distribution. Data suggest that big predators, like squids that constitute prey for beaked, pilot, and sperm whales, are more likely to be found where they have better chance to find micronectonic prey...
June 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28676772/executive-functions-of-divers-are-selectively-impaired-at-20-meter-water-depth
#20
Fabian Steinberg, Michael Doppelmayr
Moving and acting underwater within recreational or occupational activities require intact executive functions, since they subserve higher cognitive functions such as successful self-regulation, coping with novel situations, and decision making; all of which could be influenced by nitrogen narcosis due to elevated partial pressure under water. However, specific executive functions that could provide a differentiated view on humans' cognitive performance ability have not yet been systematically analyzed in full-water immersion, which is a research gap addressed within this approach to contribute to a better understanding of nitrogen narcosis...
2017: Frontiers in Psychology
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