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Respiratory physiology

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https://www.readbyqxmd.com/read/27914996/long-term-organic-selenium-supplementation-overcomes-the-trade-off-between-immune-and-antioxidant-systems-in-pacu-piaractus-mesopotamicus
#1
Leonardo Susumu Takahashi, Jaqueline Dalbello Biller-Takahashi, Cleber Fernando Menegasso Mansano, Elisabeth Criscuolo Urbinati, Rodrigo Yukihiro Gimbo, Marcos Vinícius Saita
Selenium (Se) is an essential nutrient for antioxidant defenses in fish because of its role in preventing immunosuppression caused by oxidative stress. In this study it was demonstrated the relation between the oxidative stress and immune status after a long Se supplementation period, as a result of the evaluation of immunological, hematological and antioxidant responses, as well as growth performance of pacu fed diets supplemented with different concentrations of organic selenium (0, 0.3, 0.6, 0.9, and 1.8 mg Se-yeast/kg, but the final analyzed selenium concentrations were 0...
November 30, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27914263/positive-effects-of-low-intensity-recorded-maternal-voice-on-physiologic-reactions-in-premature-infants
#2
Negar Sajjadian, Mahboobeh Mohammadzadeh, Peymaneh Alizadeh Taheri, Mamak Shariat
OBJECTIVE: To evaluate the effect of low intensity recorded maternal voice on the physiologic reactions of healthy premature infants in the neonatal intensive care unit (NICU). METHODS: Physiologic responses of 20 healthy preterm infants in the NICU of Shariati Hospital, Tehran, were obtained during a 15min intervention including three 5min periods (no-sound control, audio recorded playback of mother's voice, no-sound post-voice). The intervention was presented three times a day for three consecutive days...
November 30, 2016: Infant Behavior & Development
https://www.readbyqxmd.com/read/27910706/intravenous-oxygen-a-novel-method-of-oxygen-delivery-in-hypoxemic-respiratory-failure
#3
Jonathan A Gehlbach, Kyle J Rehder, Michael A Gentile, David A Turner, Daniel J Grady, Ira M Cheifetz
Hypoxemic respiratory failure is a common problem in critical care. Current management strategies, including mechanical ventilation and extracorporeal membranous oxygenation, can be efficacious but these therapies put patients at risk for toxicities associated with invasive forms of support. Areas Covered: In this manuscript, we discuss intravenous oxygen (IVO2), a novel method to improve oxygen delivery that involves intravenous administration of a physiologic solution containing dissolved oxygen at hyperbaric concentrations...
December 2, 2016: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/27909214/initial-mainstream-cultural-orientations-predict-early-social-participation-in-the-mainstream-cultural-group
#4
Marina M Doucerain, Sonya S Deschênes, Jean-Philippe Gouin, Catherine E Amiot, Andrew G Ryder
This work adopts a perspective that construes acculturation as a dynamic intergroup process, and social contact with members of the new community as a key mechanism underlying cultural adaptation. We argue that migrants' initial self-reported mainstream cultural orientation constitutes an important antecedent of early social participation in the new community. Results from two longitudinal studies of newly arrived international students (N = 98 and N = 60) show that more positive initial mainstream cultural orientations prospectively predict higher social participation, specifically in the mainstream group, over the following months...
November 30, 2016: Personality & Social Psychology Bulletin
https://www.readbyqxmd.com/read/27906709/looking-closer-at-acute-respiratory-distress-syndrome-the-role-of-advanced-imaging-techniques
#5
Giacomo Bellani, Jean-Jaques Rouby, Jean-Michel Constantin, Antonio Pesenti
PURPOSE OF REVIEW: Advanced imaging techniques have provided invaluable insights in understanding of acute respiratory distress syndrome (ARDS) and the effect of therapeutic strategies, thanks to the possibility of gaining regional information and moving from simple 'anatomical' information to in-vivo functional imaging. RECENT FINDINGS: Computed tomography (CT) led to the understanding of several ARDS mechanisms and interaction with mechanical ventilation. It is nowadays frequently part of routine diagnostic workup, often leading to treatment changes...
November 30, 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27905694/high-flow-oxygen-therapy-in-adult-critically-ill-patients
#6
Lorenzo Del Sorbo, Alice Vendramin, Sangeeta Mehta
High flow oxygen therapy is characterized for its ability to meet or exceed the high peak inspiratory flow of the patients with acute respiratory failure. Despite the lack of definitive evidence regarding its efficacy in improving clinically significant outcomes, its application has been rapidly spreading over the last decade. In this review we discuss the potential physiologic mechanisms of benefit as well as the most recent clinical trials investigating its role in adult critically ill patient.
December 1, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27904802/abundance-and-physiology-of-dominant-soft-corals-linked-to-water-quality-in-jakarta-bay-indonesia
#7
Gunilla Baum, Indra Januar, Sebastian C A Ferse, Christian Wild, Andreas Kunzmann
Declining water quality is one of the main reasons of coral reef degradation in the Thousand Islands off the megacity Jakarta, Indonesia. Shifts in benthic community composition to higher soft coral abundances have been reported for many degraded reefs throughout the Indo-Pacific. However, it is not clear to what extent soft coral abundance and physiology are influenced by water quality. In this study, live benthic cover and water quality (i.e. dissolved inorganic nutrients (DIN), turbidity (NTU), and sedimentation) were assessed at three sites (< 20 km north of Jakarta) in Jakarta Bay (JB) and five sites along the outer Thousand Islands (20-60 km north of Jakarta)...
2016: PeerJ
https://www.readbyqxmd.com/read/27903243/analysis-of-rna-expression-of-normal-and-cancer-tissues-reveals-high-correlation-of-cop9-gene-expression-with-respiratory-chain-complex-components
#8
Christina A Wicker, Tadahide Izumi
BACKGROUND: The COP9 signalosome, composed of eight subunits, is implicated in cancer genetics with its deneddylase activity to modulate cellular concentration of oncogenic proteins such as IkB and TGFβ. However, its function in the normal cell physiology remains elusive. Primarily focusing on gene expression data of the normal tissues of the head and neck, the cancer genome atlas (TCGA) database was used to identify groups of genes that were expressed synergistically with the COP9 genes, particularly with the COPS5 (CSN5), which possesses the catalytic activity of COP9...
December 1, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27902657/the-assessment-of-the-risk-of-unplanned-extubation-in-an-adult-intensive-care-unit
#9
Semine Aydoğan, Nurten Kaya
BACKGROUND: In order to plan and implement nursing intervention to reduce the incidence rate of unplanned extubation problem in the intensive care unit (ICU), it is necessary to determine the risk factors of unplanned extubation and the patients under risk. AIMS: This study was undertaken with the aim of evaluating the risk of unplanned extubation of endotracheal tube in adult ICU. DESIGN: This was a case-control study. METHODS: The population constituted patients hospitalized in the adult ICU during 1-year period in a university hospital...
January 2017: Dimensions of Critical Care Nursing: DCCN
https://www.readbyqxmd.com/read/27902615/the-prognostic-significance-of-the-birmingham-vasculitis-activity-score-bvas-with-systemic-vasculitis-patients-transferred-to-the-intensive-care-unit-icu
#10
Federico Biscetti, Angela Carbonella, Federico Parisi, Silvia Laura Bosello, Franco Schiavon, Roberto Padoan, Elisa Gremese, Gianfranco Ferraccioli
Systemic vasculitides represent a heterogeneous group of diseases that share clinical features including respiratory distress, renal dysfunction, and neurologic disorders. These diseases may often cause life-threatening complications requiring admission to an intensive care unit (ICU). The aim of the study was to evaluate the validity and responsiveness of Birmingham Vasculitis Activity Score (BVAS) score to predict survival in patients with systemic vasculitides admitted to ICU.A retrospective study was carried out from 2004 to 2014 in 18 patients with systemic vasculitis admitted to 2 different Rheumatology divisions and transferred to ICU due to clinical worsening, with a length of stay beyond 24 hours...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27902335/defluviitalea-raffinosedens-sp-nov-a-novel-thermophilic-anaerobic-saccharolytic-bacterium-isolated-from-an-anaerobic-batch-digester-treating-animal-manure-and-rice-straw
#11
Shichun Ma, Yan Huang, Cong Wang, Hui Fan, Lirong Dai, Zheng Zhou, Xing Liu, Yu Deng
A thermophilic, anaerobic, fermentative bacterium, strain A6T, was obtained from an anaerobic batch digester treating animal manure and rice straw. The strain was Gram-positive, slightly curved rods with a size of 0.6-1 μm × 2.5-8.2 μm, non-motile, and produced terminal spores. The temperature, pH, and NaCl concentration ranges for growth were 40°C-60°C, 6.5-8.0, and 0-15.0 g/L, with optimum growth noted at 50°C-55°C, pH 7.5, and in the absence of NaCl, respectively. Yeast extract was required for growth...
November 14, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27902299/chryseobacterium-nepalense-sp-nov-isolated-from-oil-contaminated-soil
#12
Dhiraj Kumar Chaudhary, Jaisoo Kim
During the study of hydrocarbon-degrading bacteria in the oil-contaminated soil of Biratnagar, Morang, Nepal, a yellow-coloured, Gram-staining negative, aerobic, non-motile, and rod shaped bacterium, designated strain C-5-3T, was isolated. This strain was taxonomically characterized by a polyphasic approach. Based on the 16S rRNA gene sequence analysis, strain C-5-3T belongs to the genus Chryseobacterium and is closely related to 'Chryseobacterium profundimaris' DY46 (98.19% sequence similarity), Chryseobacterium takakiae AG1-2T (98...
November 21, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27902247/motilimonas-eburnea-gen-nov-sp-nov-isolated-from-coastal-sediment
#13
Si-Kai Ling, Ling-Yun Guo, Guan-Jun Chen, Zong-Jun Du
A novel Gram-stain-negative, non-spore forming, facultatively anaerobic bacterium, designated YH6T, was isolated from marine sediment in Weihai, China. Cells of starin YH6T were motile, straight rods that formed ivory colonies on the 2216E agar. Optimal growth occurred at 28-33 °C (range 15-37 °C), in the presence of 2-4 % (w/v) NaCl (range 1-8 %), and at pH 7.5-8.5 (range pH 6.5-9.0). The sole respiratory lipoquinone was Q-8 and the major fatty acids (>10%) were C16:0 and summed feature 3 (C16:1 ω7c / iso-C15:0 2-OH)...
October 27, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27902218/aliidongia-dinghuensis-gen-nov-sp-nov-poly-%C3%AE-hydroxybutyrate-producing-bacteria-isolated-from-pinus-massoniana-forest-soil
#14
Mei-Hong Chen, Xiang-Yue Zhou, Fang-Hong Ou, Fan Xia, Ying-Ying Lv, Li-Hong Qiu
A Gram-stain-negative, aerobic, motile, rod-shaped bacterium, designated as 7M-Z19T was isolated from a soil sample collected from the Pinus massoniana forest of Dinghushan Biosphere Reserve, Guangdong Province, PR China. Strain 7M-Z19T grew at pH 4.5-7.5 (optimum 6.0-6.5), 10 to 37 °C (optimum 28 °C) and NaCl concentration up to 2.0 % (optimum 0 %, w/v). Iso-C17:0, iso-C18:1 ω7c and C19:0 ω8c cyclo were the major fatty acids (> 10 %) while ubiquinone-10 was the only respiratory quinone detected in 7M-Z19T...
October 24, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27902194/flavobacterium-orientale-sp-nov-isolated-from-lake-water
#15
Ai-Hua Li, Hong-Can Liu, Yu-Guang Zhou
Two Gram-stain-negative, obligately aerobic, non-motile, rod-shaped bacterial strains, designated SP3T and SP38, were isolated from a cold-water lake, in the west of China. Polyphasic taxonomy was performed for the strains. Alignment of 16S rRNA gene sequences indicated that strains SP3T and SP38 were associated with the genus Flavobacterium and were most closely related to Flavobacterium lacus NP180T (96.4 % sequence similarity), Flavobacterium ponti GSW-R14T (95.6 %) and Flavobacterium yanchengense hgT (95...
October 17, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27901338/determinant-factors-of-peak-treadmill-speed-in-physically-active-men
#16
Leonardo Alves Pasqua, Mayara V Damasceno, Salomão Bueno, Alessandro M Zagatto, Gustavo G DE Araújo, Adriano E Lima-Silva, Rômulo Bertuzzi
BACKGROUND: The aim of the present study was to determine whether physiological factors and maximal dynamic strength are able to determine the peak treadmill speed (PTS) in physically active individuals. METHODS: One hundred and fifty physically active healthy males voluntarily visit the laboratory on three separate occasions and underwent the following activities: first visit: IPAQ (short version), anthropometric measurements, and a maximal incremental test performed for physiological variables (maximal oxygen uptake ( ) and respiratory compensation point (RCP); second visit: constant speed test for running economy (RE) measurement, and familiarization with the maximum dynamic strength (1RM) test in the leg press exercise; third visit: 1RM test...
November 30, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27899896/respiratory-function-in-voluntary-participating-patagonia-sea-lions-otaria-flavescens-in-sternal-recumbency
#17
Andreas Fahlman, Johnny Madigan
We measured esophageal pressures (n = 4), respiratory flow rates (n = 5), and expired O2 and CO2 (n = 4) in five adult Patagonia sea lions (Otaria flavescens, body mass range 94.3-286.0 kg) during voluntary breaths while laying down out of water. The data were used to estimate the dynamic specific lung compliance (sCL), the O2 consumption rate ([Formula: see text]O2) and CO2 production rates ([Formula: see text]CO2) during rest. Our results indicate that the resting tidal volume in Patagonia sea lions is approximately 47-73% of the estimated total lung capacity...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27899527/biased-agonists-of-the-kappa-opioid-receptor-suppress-pain-and-itch-without-causing-sedation-or-dysphoria
#18
Tarsis F Brust, Jenny Morgenweck, Susy A Kim, Jamie H Rose, Jason L Locke, Cullen L Schmid, Lei Zhou, Edward L Stahl, Michael D Cameron, Sarah M Scarry, Jeffrey Aubé, Sara R Jones, Thomas J Martin, Laura M Bohn
Agonists targeting the kappa opioid receptor (KOR) have been promising therapeutic candidates because of their efficacy for treating intractable itch and relieving pain. Unlike typical opioid narcotics, KOR agonists do not produce euphoria or lead to respiratory suppression or overdose. However, they do produce dysphoria and sedation, side effects that have precluded their clinical development as therapeutics. KOR signaling can be fine-tuned to preferentially activate certain pathways over others, such that agonists can bias signaling so that the receptor signals through G proteins rather than other effectors such as βarrestin2...
November 29, 2016: Science Signaling
https://www.readbyqxmd.com/read/27898956/effect-of-timing-of-challenge-following-short-term-natural-exposure-to-bovine-viral-diarrhea-virus-type-1b-on-animal-performance-and-immune-response-in-beef-steers
#19
L Carlos-Valdez, B K Wilson, L O Burciaga-Robles, D L Step, B P Holland, C J Richards, M A Montelongo, A W Confer, R W Fulton, C R Krehbiel
Bovine respiratory disease (BRD) is the most common and economically detrimental disease of beef cattle during the postweaning period, causing the majority of morbidity and mortality in feedlots. The pathogenesis of this disease often includes an initial viral infection, which can predispose cattle to a secondary bacterial infection. The objective of this experiment was to determine the effects of timing of an intratracheal (MH) challenge relative to 72 h of natural exposure to bovine viral diarrhea virus (BVDV) type 1b persistently infected (PI) calves on performance, serum antibody production, total and differential white blood cell (WBC) count, rectal temperature, clinical severity score (CS), and haptoglobin (Hp)...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898899/fever-feeding-and-grooming-behavior-around-peak-clinical-signs-in-bovine-respiratory-disease
#20
R L Toaff-Rosenstein, L J Gershwin, C B Tucker
Feedlot cattle are monitored for the sickness response, both physiological and behavioral, to detect bovine respiratory disease (BRD), but this method can be inaccurate. Diagnostic accuracy may improve if the BRD sickness response is better understood. We hypothesized that steers around peak BRD would have fever, anorexia, and less grooming than controls. We also expected sickness response magnitude to be greater as clinical and pathological severity increased. Unvaccinated steers were assigned to challenge with 1 of 5 BRD viruses or bacteria (BRD challenge; = 4/pathogen; 20 total), based on susceptibility as determined by serology...
September 2016: Journal of Animal Science
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