Effect of heat acclimation on anxiety-like behavior of rats in an open field

Publication date: Available online 9 December 2019Source: Journal of Thermal BiologyAuthor(s): Hikaru Nakagawa, Daisuke Matsunaga, Takayuki IshiwataAbstractTo mitigate the impacts of heat exposure, animals can take some actions to maintain their core body temperature, such as heat acclimation; however, the effect of heat acclimation on anxiety-like behavior in an open field is still not understood. The purpose of this study was to examine the anxiety-like behavior of heat acclimated rats in a temperate or heated open field. After being raised in a 23 °C environment for one week, male Wistar rats were exposed to a heated environment (32 °C) for 3 h (3H), 14 days (14D), or 28 days (28D), with free access to food and water, and compared with rats reared in a temperate environment (23 °C; Cont). After heat exposure, behavioral changes were monitored using an open field test (OFT) in a heated (32 °C) or temperate environment (23 °C). Compared with those in the Cont group, the body weights of rats in the 14D and 28D groups were lower. The OFT in the heated environment showed that grooming time was longer in 3H and 14D rats. In the temperate environment, grooming time was longer in all the heated groups. Rats from the 3H and 28D groups spent longer time in the center square when tested in the temperate environment. Rearing activity increased in 28D rats in the temperate environment, while the number of line crossings did not differ significantly betwe...
Source: Journal of Thermal Biology - Category: Biology Source Type: research

Related Links:

Ketamine, a non-competitive N-methyl-D-aspartate (NMDA) receptor antagonist, presents a rapid and sustained antidepressant effect in clinical and preclinical studies. Regarding ketamine effects on anxiety, there is a widespread discordance among pre-clinic...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Alcohol and Other Drugs Source Type: news
ConclusionHospitalizations for anxiety and depression among youth in Illinois are often compounded by serious mental illness, suicide attempts, and substance use, but disparities exist in hospital admissions among Hispanics and youth on Medicaid.
Source: Academic Pediatrics - Category: Pediatrics Source Type: research
A single dose of psilocybin, a compound found in magic mushrooms, could provide long-term relief of anxiety and depression in cancer patients, a new study says.
Source: CNN.com - Health - Category: Consumer Health News Source Type: news
The objective of this study was to assess factors associated with research participation among epilepsy clinic patients who screened positive for anxiety or depression. This was accomplished by characterizing clinical and psychiatric factors among patients seen in an epilepsy clinic and evaluating which factors were associated with consent for potential research participation, via a combined clinical and research screening model.MethodsIn a pragmatic trial of anxiety and depression treatment in epilepsy, individuals with a positive screen for anxiety and/or depression at a routine epilepsy clinic visit were invited to opt-...
Source: Epilepsy and Behavior - Category: Neurology Source Type: research
Publication date: Available online 28 January 2020Source: Journal of Hospital InfectionAuthor(s): Andrew R. Brodbelt, Jacqui Vinten, Susan LarkinAbstractThe unanticipated diagnosis of sporadic Creutzfeldt Jakob disease (sCJD) in a patient after previous neurosurgery can lead to difficult decisions on informing contacts. A patient developed sCJD three years after neurosurgery. There were 29 potential contacts and 26 were contacted. Twelve completed a questionnaire. The majority of patients wished to know about the contact, to be seen face-to-face, and their main concern was developing the disease, despite verbal and written...
Source: Journal of Hospital Infection - Category: Infectious Diseases Source Type: research
Conditions:   Anxiety;   Nurse-Patient Relations Interventions:   Device: Bair Paws Blanket 81003 and FOC device 87500;   Other: routine hospital care Sponsors:   Selcuk University;   Koç University Completed
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Conditions:   Anxiety;   Pain, Postoperative Interventions:   Other: Music therapy;   Other: Control Sponsor:   Università degli Studi dell'Insubria Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Cancer patients who were treated with one dose of psilocybin plus psychotherapy for depression and anxiety reported benefits on emotional and existentialist distress events 5 years later.Medscape Medical News
Source: Medscape Hematology-Oncology Headlines - Category: Cancer & Oncology Tags: Hematology-Oncology News Source Type: news
Mice also recover their cognitive abilities after being given the drug. → Support PsyBlog for just $5 per month. Enables access to articles marked (M) and removes ads. → Explore PsyBlog's ebooks, all written by Dr Jeremy Dean: Accept Yourself: How to feel a profound sense of warmth and self-compassion The Anxiety Plan: 42 Strategies For Worry, Phobias, OCD and Panic Spark: 17 Steps That Will Boost Your Motivation For Anything Activate: How To Find Joy Again By Changing What You Do
Source: PsyBlog | Psychology Blog - Category: Psychiatry & Psychology Authors: Tags: Dementia subscribers-only Source Type: blogs
Two lines on a home pregnancy test, a flickering heartbeat on ultrasound, and suddenly your world has changed: you’re pregnant! Regardless of where this new path takes you, you may start to examine your daily decisions in a new way as you discover an intense drive to protect the growing baby inside you. Even your exercise routines may come under scrutiny, particularly if late-night Googling has you second-guessing everything that you believed you knew. Just how safe is exercise during pregnancy? The short answer? Exercise during pregnancy is not only safe, it’s encouraged. An overriding principle for pregnancy ...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Health Source Type: blogs
More News: Anxiety | Biology | Environmental Health | Study