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https://www.readbyqxmd.com/read/28439669/effects-of-desiccation-and-starvation-on-thermal-tolerance-and-the-heat-shock-response-in-forest-ants
#1
Andrew D Nguyen, Kerri DeNovellis, Skyler Resendez, Jeremy D Pustilnik, Nicholas J Gotelli, Joel D Parker, Sara Helms Cahan
Temperature increases associated with global climate change are likely to be accompanied by additional environmental stressors such as desiccation and food limitation, which may alter how temperature impacts organismal performance. To investigate how interactions between stressors influence thermal tolerance in the common forest ant, Aphaenogaster picea, we compared the thermal resistance of workers to heat shock with and without pre-exposure to desiccation or starvation stress. Knockdown (KD) time at 40.5 °C of desiccated ants was reduced 6% compared to controls, although longer exposure to desiccation did not further reduce thermal tolerance...
April 24, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28434778/live-birth-potential-of-good-morphology-and-vitrified-blastocysts-presenting-abnormal-cell-divisions
#2
Antonino Azzarello, Thomas Hoest, Anders Hay-Schmidt, Anne Lis Mikkelsen
This study included 238 good morphology blastocysts, which were transferred after vitrification-warming to 152 women by single blastocyst transfer in Holbæk Fertility Clinic, Denmark. Time-lapse recordings of transferred good morphology blastocysts were reassessed to recognize every abnormal cell division (ACD) from the 1st to the 4th cell cycle. ACDs were distinguished as failed cell divisions and multi-cell divisions. ACDs were recognized in 37.0% (no. 88/238) of good morphology blastocysts that were vitrified-warmed and transferred in our clinic...
April 20, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28427857/vitrified-warmed-single-embryo-transfers-may-be-associated-with-increased-maternal-complications-compared-with-fresh-single-embryo-transfers
#3
Tal Shavit, Galia Oron, Son Weon-Young, Hananel Holzer, Togas Tulandi
Cryopreservation of embryos allows single-embryo transfer and storage of supernumerary embryos, maximizing cumulative pregnancy rates. The purpose of this retrospective cohort study was to compare pregnancy outcome in singletons born after fresh or vitrified-warmed single blastocyst transfer (SBT). Singleton live births resulting from SBT of fresh or vitrified-warmed embryos were compared. Primary outcomes were perinatal outcomes including small for gestational age (SGA), low birthweight, preterm deliveries (PTD), large for gestational age (LGA) and congenital malformations...
April 6, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28425445/scenario-dependence-of-future-changes-in-climate-extremes-under-1-5%C3%A2-%C3%A2-c-and-2%C3%A2-%C3%A2-c-global-warming
#4
Zhili Wang, Lei Lin, Xiaoye Zhang, Hua Zhang, Liangke Liu, Yangyang Xu
The 2015 Paris Agreement aims to limit global warming below 2 °C and pursue efforts to even limit it to 1.5 °C relative to pre-industrial levels. Decision makers need reliable information on the impacts caused by these warming levels for climate mitigation and adaptation measures. We explore the changes in climate extremes, which are closely tied to economic losses and casualties, under 1.5 °C and 2 °C global warming and their scenario dependence using three sets of ensemble global climate model simulations...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28414036/blunted-cortisol-response-to-acute-pre-learning-stress-prevents-misinformation-effect-in-a-forced-confabulation-paradigm
#5
Phillip R Zoladz, Chelsea E Cadle, Alison M Dailey, Miranda K Fiely, David M Peters, Hannah E Nagle, Brianne E Mosley, Amanda R Scharf, Callie M Brown, Tessa J Duffy, McKenna B Earley, Boyd R Rorabaugh, Kristie E Payment
Research examining the effects of stress on false memory formation has been equivocal, partly because of the complex nature of stress-memory interactions. A major factor influencing stress effects on learning is the timing of stress relative to encoding. Previous work has shown that brief stressors administered immediately before learning enhance long-term memory. Thus, we predicted that brief stress immediately before learning would decrease participants' susceptibility to subsequent misinformation and reduce false memory formation...
April 21, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28403519/decadal-declines-in-avian-herbivore-reproduction-density-dependent-nutrition-and-phenological-mismatch-in-the-arctic
#6
Megan V Ross, Ray T Alisauskas, David C Douglas, Dana K Kellett
A full understanding of population dynamics depends not only on estimation of mechanistic contributions of recruitment and survival, but also knowledge about the ecological processes that drive each of these vital rates. The process of recruitment in particular may be protracted over several years, and can depend on numerous ecological complexities until sexually mature adulthood is attained. We addressed long term declines (23 breeding seasons, 1992-2014) in the per capita production of young by both Ross's geese (Chen rossii) and lesser snow geese (Chen caerulescens caerulescens) nesting at Karrak Lake in Canada's central arctic...
April 12, 2017: Ecology
https://www.readbyqxmd.com/read/28396046/minocycline-prevents-muscular-pain-hypersensitivity-and-cutaneous-allodynia-produced-by-repeated-intramuscular-injections-of-hypertonic-saline-in-healthy-human-participants
#7
Mohamad Samir Samour, Saad Saulat Nagi, Peter John Shortland, David Anthony Mahns
Minocycline, a glial suppressor, prevents behavioural hypersensitivities in animal models of peripheral nerve injury. However clinical trials of minocycline in human studies have produced mixed results. This study addressed two questions: can repeated injections of hypertonic saline (HS) in humans induce persistent hypersensitivity? Can pre-treatment with minocycline, a tetracycline antibiotic with microglial inhibitory effects, prevent the onset of hypersensitivity? Twenty seven healthy participants took part in this double-blind, placebo-controlled study, consisting of six test sessions across 2 weeks...
April 7, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28390262/enumeration-of-escherichia-coli-in-swab-samples-from-pre-and-post-chilled-pork-and-lamb-carcasses-using-3m%C3%A2-petrifilm%C3%A2-select-e-coli-and-simplate%C3%A2-coliforms-e-coli
#8
Sigrun J Hauge, Øyvin Østensvik, Marte Monshaugen, Ole-Johan Røtterud, Truls Nesbakken, Ole Alvseike
The aim of the study was to compare two analytical methods; 3M Petrifilm™ Select E. coli and SimPlate® Coliforms &E. coli, for detection and enumeration of E. coli using swab samples from naturally contaminated pork and lamb carcasses that were collected before and after chilling. Blast chilling was used for pork carcasses. Swab samples (n=180) were collected from 60 warm and 60 chilled pork carcasses, and 30 warm and 30 chilled lamb carcasses, and analysed in parallel. The concordance correlation coefficient between Petrifilm and SimPlate was 0...
March 31, 2017: Meat Science
https://www.readbyqxmd.com/read/28389600/intravascular-donor-monocytes-play-a-central-role-in-lung-transplant-ischaemia-reperfusion-injury
#9
Kate Colette Tatham, Kieran Patrick O'Dea, Rosalba Romano, Hannah Elizabeth Donaldson, Kenji Wakabayashi, Brijesh Vipin Patel, Louit Thakuria, Andre Rudiger Simon, Padmini Sarathchandra, Nandor Marczin, Masao Takata
RATIONALE: Primary graft dysfunction in lung transplant recipients derives from the initial, largely leukocyte-dependent, ischaemia-reperfusion injury. Intravascular lung-marginated monocytes have been shown to play key roles in experimental acute lung injury, but their contribution to lung ischaemia-reperfusion injury post transplantation is unknown. OBJECTIVE: To define the role of donor intravascular monocytes in lung transplant-related acute lung injury and primary graft dysfunction...
April 7, 2017: Thorax
https://www.readbyqxmd.com/read/28357030/factors-associated-with-long-term-survival-after-liver-transplantation-a-retrospective-cohort-study
#10
Sven Pischke, Marie C Lege, Moritz von Wulffen, Antonio Galante, Benjamin Otto, Malte H Wehmeyer, Uta Herden, Lutz Fischer, Björn Nashan, Ansgar W Lohse, Martina Sterneck
AIM: To identify predictive factors associated with long-term patient and graft survival (> 15 years) in liver transplant recipients. METHODS: Medical charts of all de novo adult liver transplant recipients (n = 140) who were transplanted in Hamburg between 1997 and 1999 were retrospectively reviewed. In total, 155 transplantations were identified in this time period (15 re-transplantations). Twenty-six orthotopic liver transplant (OLT) recipients were early lost to follow-up due to moving to other places within 1 year after transplantation...
March 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28343572/effect-of-the-timing-of-ice-slurry-ingestion-for-precooling-on-endurance-exercise-capacity-in-a-warm-environment
#11
Keisuke Takeshima, Sumire Onitsuka, Zheng Xinyan, Hiroshi Hasegawa
It has been demonstrated that precooling with ice slurry ingestion enhances endurance exercise capacity in the heat. However, no studies have yet evaluated the optimal timing of ice slurry ingestion for precooling. This study aimed to investigate the effects of varying the timing of ice slurry ingestion for precooling on endurance exercise capacity in a warm environment. Ten active male participants completed 3 experimental cycling trials to exhaustion at 55% peak power output (PPO) after 15min of warm-up at 30% PPO at 30°C and 80% relative humidity...
April 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28342686/taiji-tai-chi-for-fall-prevention-in-the-elderly-training-the-trainers-evaluation-project
#12
Lucy Bartimole, Mary A Fristad
Falls in the elderly are common and a major, costly health problem. Taiji addresses many issues related to fall risk. We determined whether intensive weekend training can sufficiently train persons who have baseline familiarity with Taiji to model and teach fundamentals of Taiji to the elderly. Prior to training, registrants received a manual, video and online links for review and practice. Assessments were completed pre-/post-training. Training occurred in four cities of one state. 34 adults completed training, two did not complete evaluations (ns = 12, 13, 4, and 5 at the four sites)...
February 24, 2017: Explore: the Journal of Science and Healing
https://www.readbyqxmd.com/read/28342414/impacts-of-soil-incorporation-of-pre-incubated-silica-rich-rice-residue-on-soil-biogeochemistry-and-greenhouse-gas-fluxes-under-flooding-and-drying
#13
Madison Y Gutekunst, Rodrigo Vargas, Angelia L Seyfferth
Incorporation of silica-rich rice husk residue into flooded paddy soil decreases arsenic uptake by rice. However, the impact of this practice on soil greenhouse gas (GHG) emissions and elemental cycling is unresolved particularly as amended soils experience recurrent flooding and drying cycles. We evaluated the impact of pre-incubated silica-rich rice residue incorporation to soils on pore water chemistry and soil GHG fluxes (i.e., CO2, CH4, N2O) over a flooding and drying cycle typical of flooded rice cultivation...
March 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28340251/thermal-qst-phenotypes-associated-with-response-to-lumbar-epidural-steroid-injections-a-pilot-study
#14
Dermot P Maher, Weihua Ding, Sarabdeep Singh, Arissa Opalacz, Claire Fishman, Mary Houghton, Shihab Ahmed, Lucy Chen, Jianren Mao, Yi Zhang
Objective.:  Response to lumbar epidural steroid injection in lumbar radicular pain varies. The purpose of this study is to characterize the changes in quantitative sensory testing (QST) phenotypes of subjects and compare the QST characteristics in patients who do respond to treatment of radicular pain with a lumbar epidural steroid injection (ESI). Design.:  Prospective, observational pilot study. Setting.:  Outpatient pain center. Methods...
March 13, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28340011/evaluation-of-the-impact-of-physical-exercise-in-reducing-pain-in-women-undergoing-mammography-a-randomized-clinical-trial
#15
Tadeu Cardoso de Almeida, Luane Marques de Mello, Jacó Saraiva de Castro Mattos, Anderson Soares da Silva, Altacílio Aparecido Nunes
Objective. : To evaluate the efficacy of exercise prior to mammography in reducing perceived postexamination pain. Methods. : An open, randomized, and controlled clinical trial was conducted. The interventions consisted of warm-up and stretching exercises of the upper or lower limbs of women who consulted at Barretos Cancer Hospital, São Paulo State, Brazil. The women were divided into three groups based on the intervention and its location: upper limbs (group 1), lower limbs (group 2), and no intervention (group 0)...
March 6, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28337878/salivary-cortisol-alpha-amylase-and-immunoglobulin-a-responses-to-a-morning-session-of-basketball-or-volleyball-training-in-boys-aged-14-18-years
#16
A Bruzda-Zwiech, M Konieczka, A Hilt, M Daszkowska, J Grzegorczyk, J Szczepańska
This study investigates whether a single session of routine morning basketball or volleyball training affects saliva levels of cortisol, alpha-amylase (sAA) and secretory immunoglobulin A (sIgA) in boys aged 14–18 years. Twenty-nine boys who participate in basketball or volleyball training, recruited from the Marcin Gortat’s Athletic Championship School in Lodz, were enrolled in the study. The 90-minute routine exercise program included 15 minutes of warm-up followed by basketball or volleyball practice. Unstimulated saliva samples were collected prior to and immediately after the exercise, and were analysed using ELISA...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28334195/environmental-variables-influence-the-association-of-eustenopus-villosus-and-larinus-curtus-coleoptera-curculionidae-adults-with-different-growth-stages-of-the-invasive-thistle-centaurea-solstitialis-asteraceae-cardueae-in-washington-state
#17
S E Woodley, B A Zamora, T Coffey
A 2-yr (2014-2015) field study in eastern Washington State quantified the effect of environmental factors on the overwintered Eustenopus villosus (Boheman) and Larinus curtus (Hochhut) adults in relation to phenology of Centaurea solstitialis L. (Asteraceae: Cardueae), the feeding and breeding host for these two weevil biocontrol agents. We recorded in the study area: ambient and soil temperatures, soil moisture, percent cover and developmental stage of C. solstitialis, and presence of adults of each weevil species...
April 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28333165/mass-coral-mortality-under-local-amplification-of-2%C3%A2-%C3%A2-c-ocean-warming
#18
Thomas M DeCarlo, Anne L Cohen, George T F Wong, Kristen A Davis, Pat Lohmann, Keryea Soong
A 2 °C increase in global temperature above pre-industrial levels is considered a reasonable target for avoiding the most devastating impacts of anthropogenic climate change. In June 2015, sea surface temperature (SST) of the South China Sea (SCS) increased by 2 °C in response to the developing Pacific El Niño. On its own, this moderate, short-lived warming was unlikely to cause widespread damage to coral reefs in the region, and the coral reef "Bleaching Alert" alarm was not raised. However, on Dongsha Atoll, in the northern SCS, unusually weak winds created low-flow conditions that amplified the 2 °C basin-scale anomaly...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28318845/specifying-the-effects-of-physician-s-communication-on-patients-outcomes-a-randomised-controlled-trial
#19
Mara van Osch, Sandra van Dulmen, Liesbeth van Vliet, Jozien Bensing
OBJECTIVE: To experimentally test the effects of physician's affect-oriented communication and inducing expectations on outcomes in patients with menstrual pain. METHODS: Using a 2×2 RCT design, four videotaped simulated medical consultations were used, depicting a physician and a patient with menstrual pain. In the videos, two elements of physician's communication were manipulated: (1) affect-oriented communication (positive: warm, emphatic; versus negative: cold, formal), and (2) outcome expectation induction (positive versus uncertain)...
March 6, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28306519/variability-in-variability-out-best-practice-recommendations-to-standardize-pre-analytical-variables-in-the-detection-of-circulating-and-tissue-micrornas
#20
REVIEW
Jenna Khan, Joshua A Lieberman, Christina M Lockwood
microRNAs (miRNAs) hold promise as biomarkers for a variety of disease processes and for determining cell differentiation. These short RNA species are robust, survive harsh treatment and storage conditions and may be extracted from blood and tissue. Pre-analytical variables are critical confounders in the analysis of miRNAs: we elucidate these and identify best practices for minimizing sample variation in blood and tissue specimens. Pre-analytical variables addressed include patient-intrinsic variation, time and temperature from sample collection to storage or processing, processing methods, contamination by cells and blood components, RNA extraction method, normalization, and storage time/conditions...
May 1, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
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