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https://www.readbyqxmd.com/read/28647328/effects-of-feeding-an-immunomodulatory-supplement-to-heat-stressed-or-actively-cooled-cows-during-late-gestation-on-postnatal-immunity-health-and-growth-of-calves
#1
Amy L Skibiel, Thiago F Fabris, Fabiana N Corrá, Yazielis M Torres, Derek J McLean, James D Chapman, David J Kirk, Geoffrey E Dahl, Jimena Laporta
Heat stress during late gestation negatively affects the physiology, health, and productivity of dairy cows as well as the calves developing in utero. Providing cows with active cooling devices, such as fans and soakers, and supplementing cows with an immunomodulating feed additive, OmniGen-AF (OG; Phibro Animal Health Corporation), improves immune function and milk yield of cows. It is unknown if maternal supplementation of OG combined with active cooling during late gestation might benefit the developing calf as well...
June 21, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28647283/optimal-cooling-strategies-for-players-in-australian-tennis-open-conditions
#2
Grant P Lynch, Julien D Périard, Babette M Pluim, John R Brotherhood, Ollie Jay
OBJECTIVES: We compared the utility of four cooling interventions for reducing heat strain during simulated tennis match-play in an environment representative of the peak conditions possible at the Australian Open (45°C, <10% RH, 475W/m(2) solar radiation). DESIGN: Nine trained males undertook four trials in a climate chamber, each time completing 4 sets of simulated match-play. METHODS: During ITF-mandated breaks (90-s between odd-numbered games; 120-s between sets), either iced towels (ICE), an electric fan (FANdry), a fan with moisture applied to the skin (FANwet), or ad libitum 10°C water ingestion only (CON) was administered...
May 25, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28627195/exercise-improved-semen-quality-and-reproductive-hormone-levels-in-sedentary-obese-adults
#3
Miguel Ángel Rosety, Antonio Jesus Díaz, Jesús María Rosety, María Teresa Pery, Francisco Brenes-Martín, Marco Bernardi, Natalia García, Manuel Rosety-Rodríguez, Francisco Javier Ordoñez, Ignacio Rosety
INTRODUCTION: From the previously published literature on the relationship between obesity and infertility, it is clear that male obesity negatively impacts semen quality. Accordingly, this study was conducted to determine whether regular exercise may improve semen quality in sedentary obese adults. MATERIAL AND METHODS: Ninety obese adults were randomly allocated to the intervention (n = 45) or control group (n = 45). Participants in the intervention group performed a 16-week aerobic training program in a treadmill, three sessions per week, consisting of a warm-up (10-15 minutes), 35-50 minutes treadmill exercise (increasing five minutes per four weeks) at a work intensity of 50-65% of peak heart rate (increasing a 5% per four weeks) and cooling-down (5-10 minutes)...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28625343/short-term-cooling-increases-serum-triglycerides-and-small-high-density-lipoprotein-levels-in-humans
#4
Geerte Hoeke, Kimberly J Nahon, Leontine E H Bakker, Sabine S C Norkauer, Donna L M Dinnes, Maaike Kockx, Laeticia Lichtenstein, Diana Drettwan, Anne Reifel-Miller, Tamer Coskun, Philipp Pagel, Fred P H T M Romijn, Christa M Cobbaert, Ingrid M Jazet, Laurent O Martinez, Leonard Kritharides, Jimmy F P Berbée, Mariëtte R Boon, Patrick C N Rensen
BACKGROUND: Cold exposure and β3-adrenergic receptor agonism, which both activate brown adipose tissue, markedly influence lipoprotein metabolism by enhancing lipoprotein lipase-mediated catabolism of triglyceride-rich lipoproteins and increasing plasma high-density lipoprotein (HDL) levels and functionality in mice. However, the effect of short-term cooling on human lipid and lipoprotein metabolism remained largely elusive. OBJECTIVE: The objective was to assess the effect of short-term cooling on the serum lipoprotein profile and HDL functionality in men...
May 3, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28624274/effect-of-nutritional-immunomodulation-and-heat-stress-during-the-dry-period-on-subsequent-performance-of-cows
#5
Thiago F Fabris, Jimena Laporta, Fabiana N Corra, Yazielis M Torres, David J Kirk, Derek J McLean, J D Chapman, Geoffrey E Dahl
Heat stress in dairy cows during the dry period impairs milk yield in the next lactation. Feeding OmniGen-AF (OG; Phibro Animal Health Corp., Teaneck, NJ) to lactating cows during heat stress may increase dry matter intake (DMI) and lowers respiration rate (RR) and rectal temperature (RT), but the effects in dry cows are not known. We hypothesized that OG supplementation before, during, and after the dry period (approximately 160 d total) would overcome the effects of heat stress and improve cow performance in the next lactation...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28612122/effect-of-passive-heat-stress-and-exercise-in-the-heat-on-arterial-stiffness
#6
Aaron R Caldwell, Forrest B Robinson, Matthew A Tucker, Cash H Arcement, Cory L Butts, Brendon P McDermott, Matthew S Ganio
PURPOSE: Prior evidence indicates that acute heat stress and aerobic exercise independently reduce arterial stiffness. The combined effects of exercise and heat stress on PWV are unknown. The purpose of this study was to determine the effects of heat stress with passive heating and exercise in the heat on arterial stiffness. METHODS: Nine participants (n = 3 females, 47 ± 11 years old; 24.1 ± 2.8 kg/m(2)) completed four trials. In a control trial, participants rested supine (CON)...
June 13, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28605224/effect-of-a-cooling-kit-on-physiology-and-performance-following-exercise-in-the-heat
#7
Cody R Smith, Cory L Butts, J D Adams, Matthew A Tucker, Nicole E Moyen, Matthew S Ganio, Brendon P McDermott
CONTEXT: Exercising in the heat leads to an increase in body temperature that can increase the risk of heat illness or cause detriments in exercise performance. OBJECTIVE: To examine a phase change heat emergency kit (HEK) on thermoregulatory and perceptual responses, and subsequent exercise performance following exercise in the heat. DESIGN: Two randomized crossover trials which consisted of 30 minutes of exercise, 15 minutes of treatment (T1), performance testing (5-10-5 pro-agility test, 1500 m run), and another 15 minutes of treatment (T2) identical to T1...
June 12, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28583602/effects-of-environmental-temperature-and-season-on-hair-coat-characteristics-physiologic-and-reproductive-parameters-in-shetland%C3%A2-pony-stallions
#8
Kathrin Schmidt, Katharina Deichsel, Rodrigo Arruda de Oliveira, Jörg Aurich, Natascha Ille, Christine Aurich
We hypothesized that housing of stallions in a thermoneutral temperature zone during autumn and winter does not only influence metabolism and hair shedding but also improves the characteristics of raw and processed semen. Fertile Shetland pony stallions were followed from October to June. This time coincided with the seasons autumn, winter and spring. Ponies were kept in outside paddocks (group CON, n = 8) or in indoor stables (group ST, n = 8) from October to March when ST stallions returned to outdoor paddocks, but ponies remained in the same groups...
July 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28582899/effect-of-whole-body-vibration-on-lactate-level-recovery-and-heart-rate-recovery-in-rest-after-intense-exercise
#9
Seung Rok Kang, Jin-Young Min, Changho Yu, Tae-Kyu Kwon
OBJECTIVE: In this paper, we investigated the recovery of the lactate level, muscular fatigue, and heart rate recovery (HRR) with respect to whole body vibration (WBV) during the rest stage after a gait exercise. METHODS: A total of 24 healthy subjects with no medical history of exercise injury participated. The participants were divided into a training group with vibration during rest and a control group with the same conditions but without vibration. The subjects performed a gait exercise with a slope of 15% and velocity of 4 km/h to consume 450 kcal in 30 min...
May 19, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28576048/study-on-%C3%AE-cyclodextrin-complexed-nanogels-with-improved-thermal-response-for-anticancer-drug-delivery
#10
Panpan Yi, Yifeng Wang, Peixin He, Yuan Zhan, Zhengguang Sun, Yulin Li, Yuhong Zhang
For achievement of controllability in drug delivery, development of nanocarriers with thermal response is one of the most investigated stimulative strategies for oncological treatment. How to improve the thermosensitivity of the nanocarriers is an important factor for their successful drug delivery applications. In this study, a kind of complexed nanogels (PNACD) was developed by incorporating β-cyclodextrin (β-CD) into the nanogels of copolymers of N-isopropylacrylamide (NIPAM) and acrylic acid (AA) during their polymerization via in situ crosslinking of N,N'-methylenebisacrylamide (MBA) as a crosslinker...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28560325/harnessing-the-hygroscopic-and-biofluorescent-behaviors-of-genetically-tractable-microbial-cells-to-design-biohybrid-wearables
#11
Wen Wang, Lining Yao, Chin-Yi Cheng, Teng Zhang, Hiroshi Atsumi, Luda Wang, Guanyun Wang, Oksana Anilionyte, Helene Steiner, Jifei Ou, Kang Zhou, Chris Wawrousek, Katherine Petrecca, Angela M Belcher, Rohit Karnik, Xuanhe Zhao, Daniel I C Wang, Hiroshi Ishii
Cells' biomechanical responses to external stimuli have been intensively studied but rarely implemented into devices that interact with the human body. We demonstrate that the hygroscopic and biofluorescent behaviors of living cells can be engineered to design biohybrid wearables, which give multifunctional responsiveness to human sweat. By depositing genetically tractable microbes on a humidity-inert material to form a heterogeneous multilayered structure, we obtained biohybrid films that can reversibly change shape and biofluorescence intensity within a few seconds in response to environmental humidity gradients...
May 2017: Science Advances
https://www.readbyqxmd.com/read/28558935/local-muscle-cooling-does-not-impact-expression-of-mitochondrial-related-genes
#12
Robert Shute, Matthew Heesch, Terence Laursen, Dustin Slivka
Recovery that takes place in a cold environment after endurance exercise elevates PGC-1α mRNA whereas ERRα and NRF2 mRNA expression are inhibited. However, the effect of local skeletal muscle cooling on mitochondrial-related gene expression is unknown. PURPOSE: To determine the impact of local skeletal muscle cooling during recovery from an acute bout of exercise on mitochondrial-related gene expression. METHODS: Recreationally-trained male cyclists (n=8, age 25±3 y, height 181±6cm, weight 79±8kg, 12...
July 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28556778/how-a-brain-keeps-its-cool
#13
Swathi Yadlapalli, Orie T Shafer
Temperature-sensing neurons in the Drosophila brain cooperate with the central circadian clock to help regulate body temperature.
May 30, 2017: ELife
https://www.readbyqxmd.com/read/28555724/population-pharmacokinetics-of-amoxicillin-in-term-neonates-undergoing-moderate-hypothermia
#14
Yuma A Bijleveld, Ron A A Mathôt, Johanna H van der Lee, Floris Groenendaal, Peter H Dijk, Arno van Heijst, Sinno H P Simons, Koen P Dijkman, Henrica L M van Straaten, Monique Rijken, Inge A Zonnenberg, Filip Cools, Alexandra Zecic, Debbie H G M Nuytemans, Anton H van Kaam, Timo R de Haan
The pharmacokinetics (PK) of amoxicillin in asphyxiated newborns undergoing moderate hypothermia were quantified using prospective data (N=125). The population PK was described by a 2-compartment model with a priori birthweight (BW) based allometric scaling. Significant correlations were observed between clearance (Cl) and postnatal age (PNA), gestational age (GA), body temperature (TEMP), and urine output (UO). For a typical patient with GA 40 weeks, BW 3000 g, 2 days PNA (i.e. TEMP 33.5°C), and normal UO, Cl was 0...
May 27, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28541191/fast-numerical-simulation-of-focused-ultrasound-treatments-during-respiratory-motion-with-discontinuous-motion-boundaries
#15
Michael Schwenke, Joachim Georgii, Tobias Preusser
OBJECTIVE: Focused ultrasound (FUS) is rapidly gaining clinical acceptance for several target tissues in the human body. Yet, treating liver targets is not clinically applied due to a high complexity of the procedure (noninvasiveness, target motion, complex anatomy, blood cooling effects, shielding by ribs, and limited image-based monitoring). To reduce the complexity, numerical FUS simulations can be utilized for both treatment planning and execution. These use-cases demand highly accurate and computationally efficient simulations...
July 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28531217/store-operated-ca2-entry-supports-contractile-function-in-hearts-of-hibernators
#16
Olga V Nakipova, Alexey S Averin, Edward V Evdokimovskii, Oleg Yu Pimenov, Leonid Kosarski, Dmitriy Ignat'ev, Andrey Anufriev, Yuri M Kokoz, Santiago Reyes, Andre Terzic, Alexey E Alekseev
Hibernators have a distinctive ability to adapt to seasonal changes of body temperature in a range between 37°C and near freezing, exhibiting, among other features, a unique reversibility of cardiac contractility. The adaptation of myocardial contractility in hibernation state relies on alterations of excitation contraction coupling, which becomes less-dependent from extracellular Ca2+ entry and is predominantly controlled by Ca2+ release from sarcoplasmic reticulum, replenished by the Ca2+-ATPase (SERCA)...
2017: PloS One
https://www.readbyqxmd.com/read/28528893/body-temperature-responses-to-handling-stress-in-wintering-black-capped-chickadees-poecile-atricapillus-l
#17
Agnès Lewden, Andreas Nord, Magali Petit, François Vézina
Body temperature variation in response to acute stress is typically characterized by peripheral vasoconstriction and a concomitant increase in core body temperature (stress-induced hyperthermia). It is poorly understood how this response differs between species and within individuals of the same species, and how it is affected by the environment. We therefore investigated stress-induced body temperature changes in a non-model species, the Black-capped Chickadee, in two environmental conditions: outdoors in low ambient temperature (mean: -6...
May 19, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28528496/artificial-insemination-of-holstein-heifers-with-sex-sorted-semen-during-the-hot-season-in-a-subtropical-region
#18
Lian-Ben Chang, Chih-Jen Chou, Jia-Shian Shiu, Po-An Tu, Shi-Xuan Gao, Shao-Yu Peng, Shinn-Chih Wu
Our aim was to investigate insemination techniques in order to improve pregnancy rates of artificial insemination (AI) using sex-sorted semen (sexed AI) in cattle in tropical and subtropical (T/ST) regions. In T/ST regions, the pregnancy rates by sexed AI are reportedly the lowest in the hottest months of the year, with less than 15% in cows and 35-40% in heifers (PMID 24048822). We compared sexed AI by depositing the semen into the uterine body (UB-AI, n = 12) versus the unilateral uterine horn (UUH-AI, n = 14) of pre-ovulation heifers...
May 20, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28524042/-preparation-and-application-of-cooling-bag-for-heat-stroke-in-wild-field
#19
Hailing Li, Qing Lu, Hongping Wang, Lujia Li
Cooling bag for heat stroke in wild field was invented in order to fulfill rapid cooling for heat stroke in field environment. The cooling bag is composed of the hood, the body cover (which is made up of the anterior portion, the linking, and the posterior portion), the fixed straps, the handles. The length is 200 cm, the regulative width is 60-70 cm, the folding volume is 26 cm × 20 cm × 9 cm, and the weight is 1.4 kg. There are a number of pockets for the cold sources in the hood and the body cover. Fixed straps are set in the upper, middle and lower of the bag...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28516343/therapeutic-dormancy-to-delay-postsurgical-glioma-recurrence-the-past-present-and-promise-of-focal-hypothermia
#20
REVIEW
Didier Wion
Surgery precedes both radiotherapy and chemotherapy as the first-line therapy for glioma. However, despite multimodal treatment, most glioma patients die from local recurrence in the resection margin. Glioma surgery is inherently lesional, and the response of brain tissue to surgery includes hemostasis, angiogenesis, reactive gliosis and inflammation. Unfortunately, these processes are also associated with tumorigenic side-effects. An increasing amount of evidence indicates that the response to a surgery-related brain injury is hijacked by residual glioma cells and participates in the local regeneration of tumor tissues at the resection margin...
May 17, 2017: Journal of Neuro-oncology
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