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https://www.readbyqxmd.com/read/29786656/temperature-effects-on-force-and-actin%C3%A2-myosin-interaction-in-muscle-a-look-back-on-some-experimental-findings
#1
REVIEW
K W Ranatunga
Observations made in temperature studies on mammalian muscle during force development, shortening, and lengthening, are re-examined. The isometric force in active muscle goes up substantially on warming from less than 10 °C to temperatures closer to physiological (>30 °C), and the sigmoidal temperature dependence of this force has a half-maximum at ~10 °C. During steady shortening, when force is decreased to a steady level, the sigmoidal curve is more pronounced and shifted to higher temperatures, whereas, in lengthening muscle, the curve is shifted to lower temperatures, and there is a less marked increase with temperature...
May 22, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29779809/identification-of-core-items-in-the-enhanced-recovery-pathway
#2
Marco Braga, Marco Scatizzi, Felice Borghi, Giancarlo Missana, Danilo Radrizzani, Marco Gemma
BACKGROUND & AIMS: The Enhanced Recovery After Surgery (ERAS) pathway represents an optimal approach in patients undergoing colorectal surgery but complexity in implementing its items could limit its application. The aim of this study is to identify possible core items within an ERAS pathway following elective colorectal resection. METHODS: This is a retrospective review of data prospectively collected between January 2014 and September 2015 by 14 Italian Hospitals in an electronic registry dedicated to an ERAS protocol...
June 2018: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29779063/development-of-sperm-vitrification-protocols-for-two-endangered-salmonid-species-the-adriatic-grayling-thymallus-thymallus-and-the-marble-trout-salmo-marmoratus
#3
Eszter Kása, Jelena Lujić, Zoran Marinović, Tímea Kollár, Gergely Bernáth, Zoltán Bokor, Béla Urbányi, Kinga Katalin Lefler, Dušan Jesenšek, Ákos Horváth
Vitrification was applied to the sperm of two endangered fish species of Soča River basin in Slovenia, the Adriatic grayling (Thymallus thymallus) and marble trout (Salmo marmoratus) following testing different cooling devices and vitrifying media. Sperm was collected, diluted in species-specific non-activating media containing cryoprotectants, and vitrified by plunging directly into liquid nitrogen without pre-cooling. Progressive motility, curvilinear velocity, and straightness of fresh and vitrified-warmed sperm were evaluated with computer-assisted sperm analysis (CASA)...
May 19, 2018: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29775547/acute-dietary-nitrate-supplementation-does-not-attenuate-oxidative-stress-or-the-hemodynamic-response-during-submaximal-exercise-in-hypobaric-hypoxia
#4
Colin R Carriker, Paige Rombach, Brooke M Stevens, Roger A Vaughan, Ann L Gibson
PURPOSE: To investigate changes in oxidative stress, arterial oxygen saturation (SaO2), blood pressure (BP), and heart rate (HR) while exercising in hypobaric hypoxia following acute dietary nitrate supplementation. METHODS: Nine well-trained (60.8±7.8 ml/kg/min) males (29±7 years) visited the lab on 3 occasions, each separated by 1 week. Visit 1 included a maximal aerobic cycling test (VO2max) and 5 five-minute increasing intensity exercise bouts in a normobaric environment (1600m)...
May 18, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29748548/decadal-surface-temperature-trends-in-india-based-on-a-new-high-resolution-data-set
#5
Robert S Ross, T N Krishnamurti, Sandeep Pattnaik, D S Pai
A new comprehensive surface temperature data set for India is used to document changes in Indian temperature over seven decades, in order to examine the patterns and possible effects of global warming. The data set is subdivided into pre-monsoon, monsoon, and post-monsoon categories in order to study the temperature patterns in each of these periods. When the decade means in maximum, minimum and daily mean temperature for the 2000s are compared to those of the 1950s, a consistent pattern of warming is found over northwestern and southern India, and a pattern of cooling is seen in a broad zone anchored over northeastern India and extending southwestward across central India...
May 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29746382/warm-up-optimizes-postural-control-but-requires-some-minutes-of-recovery
#6
Thierry Paillard, Mohamed Abdelhafid Kadri, Merbouha Boulahbel Nouar, Frederic Noé
Paillard, T, Kadri, MA, Nouar, MB, and Noé, F. Warm-up optimizes postural control but requires some minutes of recovery. J Strength Cond Res XX(X): 000-000, 2018-The aim was to compare monopedal postural control between the dominant leg (D-Leg) and the nondominant leg (ND-Leg) in pre- and post-warm-up conditions. Thirty healthy male sports science students were evaluated before and after a warm-up exercise (12 minutes of pedaling with an incremental effort on a cycle ergometer with a controlled workload). Monopodal postural control was assessed for the D- and ND-Legs before and immediately, 2, 5, 10, and 15 minutes after the warm-up exercise, using a force platform and calculating the displacement velocity of the center of foot pressure on the mediolateral (COPML velocity) and anteroposterior (COPAP velocity) axes...
May 2, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29745799/sweat-from-gland-to-skin-surface-production-transport-and-skin-absorption
#7
Nicola Margaret Gerrett, Katy E Griggs, Bernard Redortier, Thomas Voelcker, Narihiko Kondo, George Havenith
By combining galvanic skin conductance (GSC), stratum corneum hydration (HYD) and regional surface sweat rate (RSR) measurements at the arm, thigh, back and chest, we closely monitored the passage of sweat from gland to skin surface. Through a varied exercise-rest protocol, sweating was increased slowly and decreased in 16 male and female human participants (25.3 {plus minus} 4.7 yrs, 174.6 {plus minus} 10.1 cm, 71.3 {plus minus} 12.0 kg, 53.0 {plus minus} 6.8 ml∙kg∙min-1 ). ∆GSC and HYD increased prior to RSR, indicating pre-secretory sweat gland activity and skin hydration...
May 10, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29740070/flood-conditioned-place-aversion-as-a-novel-non-pharmacological-aversive-learning-procedure-in-mice
#8
Koral Goltseker, Segev Barak
The place conditioning paradigm is an efficient, widely-used method to study mechanisms that underlie appetitive or aversive learning and memory processes. However, pharmacological agents used to induce conditioned place preference (CPP) or aversion (CPA) can per se interfere with learning and memory processing, hence confounding the results. Therefore, non-pharmacological place conditioning procedures are of high importance. Here, we introduce a novel procedure for induction of CPA in mice, by water flooding...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29738847/ethnopharmacological-uses-phytochemistry-biological-activities-and-therapeutic-applications-of-alpinia-oxyphylla-miquel-a-review
#9
REVIEW
Qiao Zhang, Yunliang Zheng, Xingjiang Hu, Xiaolong Hu, Wenwen Lv, Duo Lv, Jinjin Chen, Minglan Wu, Qichao Song, Jianzhong Shentu
ETHNOPHARMACOLOGICAL USAGES: Fructus Alpiniae oxyphyllae (A. oxyphylla) is an important medicinal plant that is used not only as an edible fruit, but also as an important traditional medicine for benefiting cognitive performance and alleviating a wide spectrum of diseases. Such as; warming kidney, securing essence and arresting polyuria, as well as warming the spleen and stopping diarrhea and saliva. AIMS: The purpose of this review is to provide updated, comprehensive and categorized information on the traditional uses, phytochemistry and pharmacological research of A...
May 5, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29736159/consensus-statements-by-korean-society-of-interventional-neuroradiology-and-korean-stroke-society-hyperacute-endovascular-treatment-workflow-to-reduce-door-to-reperfusion-time
#10
Dae-Hyun Kim, Byungjun Kim, Cheolkyu Jung, Hyo Suk Nam, Jin Soo Lee, Jin Woo Kim, Woong Jae Lee, Woo-Keun Seo, Ji-Hoe Heo, Seung Kug Baik, Byung Moon Kim, Joung-Ho Rha
Recent clinical trials demonstrated the clinical benefit of endovascular treatment (EVT) in patients with acute ischemic stroke due to large vessel occlusion. These trials confirmed that good outcome after EVT depends on the time interval from symptom onset to reperfusion and that in-hospital delay leads to poor clinical outcome. However, there has been no universally accepted in-hospital workflow and performance benchmark for rapid reperfusion. Additionally, wide variety in workflow for EVT is present between each stroke centers...
May 7, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29725749/reduced-opiate-use-after-total-knee-arthroplasty-using-computer-assisted-cryotherapy
#11
Elke Thijs, Martijn G M Schotanus, Yoeri F L Bemelmans, Nanne P Kort
PURPOSE: Despite multimodal pain management and advances in anesthetic techniques, total knee arthroplasty (TKA) remains painful during the early postoperative phase. This trial investigated whether computer-assisted cryotherapy (CAC) is effective in reduction of pain and consumption of opioids in patients operated for TKA following an outpatient surgery pathway. METHODS: Sixty patients scheduled for primary TKA were included in this prospective, double-blind, randomized controlled trial receiving CAC at 10-12 °C (Cold-group, n = 30) or at 21 °C (Warm-group, n = 30) during the first 7 days after TKA according to a fixed schedule...
May 3, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29694043/rate-coefficient-measurements-and-theoretical-analysis-of-the-oh-e-cf3ch-chcf-3-reaction
#12
Munkhbayar Baasandorj, Paul Marshall, Robert L Waterland, Akkihebbal R Ravishankara, James B Burkholder
Rate coefficients, k, for the gas-phase reaction of the OH radical with (E) CF3CH=CHCF3 ((E)-1,1,14,4,4-hexafluoro-2-butene, HFO-1336mzz(E)) were measured over a range of temperature (211-374 K) and bath gas pressure (20-300 Torr; He, N2) using a pulsed laser photolysis-laser induced fluorescence (PLP-LIF) technique. k1(T) was independent of pressure over this range of conditions with k1(296 K) = (1.31 ± 0.15) × 10 13 cm3 molecule 1 s 1 and k1(T) = (6.94 ± 0.80) × 10 13 exp[ (496 ± 10)/T] cm3 molecule 1 s 1, where the uncertainties are 2 and the pre-exponential term includes estimated systematic error...
April 25, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29693963/wistar-rats-immature-testicular-tissue-vitrification-and-heterotopic-grafting
#13
Larissa Benvenutti, Rafael Alonso Salvador, David Til, Alfred Paul Senn, David Rivero Tames, Nicole Louise Lângaro Amaral, Vera Lúcia Lângaro Amaral
OBJECTIVE: To evaluate the efficiency of two vitrification protocols for rat immature testicular tissue and heterotopic transplantation. METHODS: Twenty-four pre-pubertal Wistar rats were divided into three groups (n=8). After orchiectomy, testicular fragments (3mm) from Groups 1 and 2 were vitrified with different cryoprotectant concentration solutions, using sterile inoculation loops as support. After warming up, the fragments were submitted to cell viability assessment by Trypan blue and histological evaluation...
April 25, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29692477/use-of-plan-do-study-act-cycles-to-decrease-incidence-of-neonatal-hypothermia-in-the-labor-room
#14
Subhash Chandra Shaw, Amit Devgan, Sushila Anila, Neha Anushree, Himadri Debnath
Background: Body temperature of a neonate continues to be under-documented, under-recognized, and under-managed, even though studies have shown that neonatal hypothermia increases mortality and morbidity. We aimed to reduce neonatal hypothermia (body temperature <36.5 °C) at 1 h following normal vaginal delivery in term and late preterm neonates in delivery room from 50% at baseline to less than 10% by 6 weeks. Methods: We implemented a quality improvement (QI) initiative using the rapid-cycle Plan-Do-Study-Act approach (PDSA) improvement model and the project was conducted from 15 Jan 2017 to 25 Feb 2017...
April 2018: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/29682423/a-new-species-of-gulo-from-the-early-pliocene-gray-fossil-site-eastern-united-states-rethinking-the-evolution-of-wolverines
#15
Joshua X Samuels, Keila E Bredehoeft, Steven C Wallace
The wolverine ( Gulo gulo ) is the largest living terrestrial member of the Mustelidae; a versatile predator formerly distributed throughout boreal regions of North America and Eurasia. Though commonly recovered from Pleistocene sites across their range, pre-Pleistocene records of the genus are exceedingly rare. Here, we describe a new species of Gulo from the Gray Fossil Site in Tennessee. Based on biostratigraphy, a revised estimate of the age of the Gray Fossil Site is Early Pliocene, near the Hemphillian-Blancan transition, between 4...
2018: PeerJ
https://www.readbyqxmd.com/read/29680044/comparison-of-consecutive-harvests-versus-blending-treatments-to-produce-lower-alcohol-wines-from-cabernet-sauvignon-grapes-impact-on-wine-volatile-composition-and-sensory-properties
#16
Olaf J Schelezki, Katja Šuklje, Paul K Boss, David W Jeffery
This study extends previous work on Cabernet Sauvignon wines of lowered alcohol concentrations produced by pre-fermentatively substituting proportions of juice from an overripe crop with "green harvest wine" or water to adjust initial sugar concentrations. Resulting wines were assessed for their volatile compositions and sensory characteristics to evaluate the suitability of this winemaking approach to managing wine alcohol concentrations in warm viticulture regions. Wines from water or green harvest wine substitution were also compared to wines of similar alcohol content produced from earlier harvested grapes...
September 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29668695/value-of-computed-tomography-texture-analysis-for-prediction-of-perioperative-complications-during-laparoscopic-partial-nephrectomy-in-patients-with-renal-cell-carcinoma
#17
Georg Bier, Simone Bier, Malte Niklas Bongers, Ahmed Othman, Ulrike Ernemann, Johann-Martin Hempel
PURPOSE: Tumorous texture is a marker for tumor tissue inhomogeneity. Based on this assumption, this study aims to evaluate the value of computed tomography texture analysis for imaging-based prediction of perioperative complications during laparoscopic partial tumor nephrectomy. METHODS: A total of 106 patients with histologically confirmed renal cell carcinoma and pre-operative CT were included and volumetric texture analysis of the tumors was performed by two readers...
2018: PloS One
https://www.readbyqxmd.com/read/29666437/increasing-thermal-stress-for-tropical-coral-reefs-1871-2017
#18
J M Lough, K D Anderson, T P Hughes
Tropical corals live close to their upper thermal limit making them vulnerable to unusually warm summer sea temperatures. The resulting thermal stress can lead to breakdown of the coral-algal symbiosis, essential for the functioning of reefs, and cause coral bleaching. Mass coral bleaching is a modern phenomenon associated with increases in reef temperatures due to recent global warming. Widespread bleaching has typically occurred during El Niño events. We examine the historical level of stress for 100 coral reef locations with robust bleaching histories...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29650992/stabilised-frequency-of-extreme-positive-indian-ocean-dipole-under-1-5-%C3%A2-c-warming
#19
Wenju Cai, Guojian Wang, Bolan Gan, Lixin Wu, Agus Santoso, Xiaopei Lin, Zhaohui Chen, Fan Jia, Toshio Yamagata
Extreme positive Indian Ocean Dipole (pIOD) affects weather, agriculture, ecosystems, and public health worldwide, particularly when exacerbated by an extreme El Niño. The Paris Agreement aims to limit warming below 2 °C and ideally below 1.5 °C in global mean temperature (GMT), but how extreme pIOD will respond to this target is unclear. Here we show that the frequency increases linearly as the warming proceeds, and doubles at 1.5 °C warming from the pre-industrial level (statistically significant above the 90% confidence level), underscored by a strong intermodel agreement with 11 out of 13 models producing an increase...
April 12, 2018: Nature Communications
https://www.readbyqxmd.com/read/29650336/acute-physiological-responses-to-low-intensity-blood-flow-restriction-cycling
#20
H J Thomas, B R Scott, J J Peiffer
OBJECTIVES: Blood flow restriction (BFR) during interval cycling may stimulate aerobic and anaerobic adaptations. However, acute physiological responses to BFR interval cycling have not been extensively investigated. DESIGN: Eighteen males completed low-intensity (LI), low-intensity with BFR (LIBFR ) and high-intensity (HI) interval cycling sessions in randomised and counterbalanced order. These included a standardised warm-up and three two-min intervals interspersed with two-min recovery...
April 9, 2018: Journal of Science and Medicine in Sport
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