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Nicholas Ravanelli, William Casasola, Timothy English, Kate M Edwards, Ollie Jay
OBJECTIVE: Pregnant women are advised to avoid heat stress (eg, excessive exercise and/or heat exposure) due to the risk of teratogenicity associated with maternal hyperthermia; defined as a core temperature (Tcore ) ≥39.0°C. However, guidelines are ambiguous in terms of critical combinations of climate and activity to avoid and may therefore unnecessarily discourage physical activity during pregnancy. Thus, the primary aim was to assess Tcore elevations with different characteristics defining exercise and passive heat stress (intensity, mode, ambient conditions, duration) during pregnancy relative to the critical maternal Tcore of ≥39...
March 1, 2018: British Journal of Sports Medicine
Kristina Ingemarsdotter Persson, Torsten Berglund, Jakob Bergström, Ronny Tikkanen, Anna Thorson, Birger Forsberg
BACKGROUND: The proportion of newly diagnosed HIV and STI cases among men who have sex with men (MSM) that were contracted abroad has been increasing in Sweden. The present study explored factors associated with casual unprotected anal intercourse (UAI) and travelling abroad among MSM. METHODS: A cross-sectional stratified survey with 2751 MSM was conducted. The frequency of sexual practices among men who had casual UAI abroad (<12 months) with that of men who had casual UAI only in Sweden were compared and factors associated with casual UAI abroad were identified through regression analysis...
February 27, 2018: Travel Medicine and Infectious Disease
Anthony S Leicht, Aaron Halliday, Wade H Sinclair, Shaun D'Auria, Martin Buchheit, Glen P Kenny, Jamie Stanley
Short- to medium-term (i.e. 4-14 days) heating protocols induce physiological adaptations including improved cardiac autonomic modulations, as assessed using heart rate variability, which may contribute to greater exercise performance. Whether similar cardiac autonomic changes occur during an intense heating protocol (sauna) reported to increase plasma volume in athletes remains to be confirmed. This study examined the changes in heart rate and its variability during a single, extreme heat (sauna) exposure and repeated exposures in athletes...
February 14, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
A Garolla, I Šabović, S Tescari, L De Toni, M Menegazzo, I Cosci, V De Filippis, M Giarola, C Foresta
Membrane cholesterol removal appears a key step for the gain of fertility potential during sperm maturation. However, the membrane sterol pattern in sperm cells from infertile patients, with impaired sperm parameters, has been poorly investigated. To elucidate a causative link between sperm membrane composition in male fertility, here we have investigated the levels of cholesterol and its oxidized derivatives 7β-hydroxycholesterol and 7-keto-cholesterol in sixteen infertile patients with oligo-asthenozoospermia and 16 normozoospermic (N) fertile subjects...
January 29, 2018: Andrology
Ilkka Heinonen, Jari A Laukkanen
Environmental stress such as extremely warm or cold temperature is often considered a challenge to human health and body homeostasis. However, human body can adapt relatively well to heat and cold environments and recent studies have also elucidated that particularly heat stress might be even highly beneficial for human health. Consequently, the aim of the present brief review is first to discuss general cardiovascular and other responses to acute heat stress, followed by a review of beneficial effects of Finnish sauna bathing on general and cardiovascular health and mortality as well as dementia and Alzheimer's disease risk...
December 20, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
Oliver R Barley, Dale W Chapman, Chris R Abbiss
PURPOSE: Combat sports are typically divided into weight classes and body mass manipulation to reach a weight class is commonplace. Previous research suggests that mixed martial arts (MMA) weight loss practices may be more extreme than other combat sports. We sought to investigate the magnitude of weight lost and prevalence of weight loss strategies in different combat sports. METHODS: Competitors (n=637) from Brazilian jiu jitsu (BJJ), boxing, judo, MMA, muay Thai/kickboxing (MT/K), taekwondo (TKD) and wrestling completed an online questionnaire seeking information regarding their weight loss practices...
December 28, 2017: International Journal of Sports Physiology and Performance
Gordon S Waddington
No abstract text is available yet for this article.
February 2018: Journal of Science and Medicine in Sport
Setor K Kunutsor, Tanjaniina Laukkanen, Jari A Laukkanen
OBJECTIVE: Emerging evidence suggests sauna bathing to be linked with numerous health benefits. Having frequent sauna baths has been found to be associated with reduced risk of acute and chronic disease conditions. Sauna bathing may reduce the risk of respiratory diseases; however, the evidence is uncertain. We aimed to assess the association of frequency of sauna bathing with risk of pneumonia. METHODS: Baseline sauna bathing habits were assessed by administration of questionnaires in a prospective cohort of 2210 men aged 42-61 years...
November 2017: Respiratory Medicine
Olivier Robineau, Annie Velter, Francis Barin, Pierre-Yves Boelle
OBJECTIVE: In France, indications for pre-exposure prophylaxis (PrEP) for HIV prevention are based on individual-level risk factors for HIV infection. However, the risk of HIV infection may also depend on characteristics of sexual partnerships. Here we study how place-based selection of partners change transmission and the overall efficiency of PrEP. METHODS: We used the PREVAGAY survey of sexual behavior and HIV serostatus in men who have sex with men (MSM) in a Parisian district to look for associations between sexual network characteristics and HIV infection...
2017: PloS One
Timo E Strandberg, Arto Strandberg, Kaisu Pitkälä, Athanase Benetos
BACKGROUND AND AIM: Sauna-type bathing has increased worldwide, and it has been related to both harmful and beneficial effects. There are few studies of bathing in sauna in very old age. METHODS: The series consists of 524 mostly home-living survivors of the Helsinki Businessmen Study (HBS, mean age 86 years, range 80-95), who in 2015 responded to a questionnaire survey about lifestyle (including sauna bathing), prevalent diseases, and health-related quality of life (HRQoL, RAND-36)...
November 29, 2017: Aging Clinical and Experimental Research
Jean-Paul Schmid
No abstract text is available yet for this article.
January 2018: European Journal of Preventive Cardiology
Tsz Ho Kwan, Shui Shan Lee
HIV testing is the gateway to biomedical means of prevention and treatment. Identifying predictors of HIV testing is important to inform future preventive interventions. Of 444 men who have sex with men without known HIV infection enrolled in a study in Hong Kong, 64% had ever been HIV-tested. Testers were generally older, better educated, had a higher monthly income, and more likely self-identified as gay. Testers often used Internet and frequented saunas for sex networking, compared with non-testers attending bars, massage centres and public toilets...
November 10, 2017: AIDS and Behavior
John M Corkery, Barbara Loi, Hugh Claridge, Christine Goodair, Fabrizio Schifano
Background Misuse of gammahydroxybutrate (GHB) and its prodrugs gammabutyrolactone (GBL) and 1,4 butanediol (1,4-BD) has increased greatly since the early 1990s, particularly amongst lesbian, gay, bisexual and transgender (LGBT) individuals in recreational and sexual settings, e.g. 'chemsex'. Objective and method This paper presents an overview of GHB pharmacotoxicology and provides analyses of cases in the LGBT population associated with use of these substances extracted from the UK's National Programme on Substance Abuse Deaths database, to which notification is voluntary...
November 8, 2017: Current Drug Metabolism
Ping-Chung Leung
Sauna has become a popular club house facility where the dweller enjoys relaxation. Some exercise groups like yoga and Qigong practitioners, are making use of the heated environment to achieve quicker and better results of trainings. Sauna therapy is producing a thermal stress through hyperthermia. The cardiovascular system readily responds by increasing the heart rate which can become double the resting stage within minutes and cardiac output may have a 70% increase. The body's surface response to heat leads to a 40% of decrease in peripheral vascular resistance, thus allowing rapid peripheral blood flow which is responsible for greater heat dispersal directly from the skin...
October 2017: Journal of Exercise Rehabilitation
Earric Lee, Tanjaniina Laukkanen, Setor K Kunutsor, Hassan Khan, Peter Willeit, Francesco Zaccardi, Jari A Laukkanen
Background Heat therapy has been suggested to improve cardiovascular function. However, the effects of hot sauna exposure on arterial compliance and the dynamics of blood flow and pressure have not been well documented. Thus, we investigated the short-term effects of sauna bathing on arterial stiffness and haemodynamics. Design The design was an experimental non-randomised study. Methods There were 102 asymptomatic participants (mean age, 51.9 years) who had at least one cardiovascular risk factor. Participants were exposed to a single sauna session (duration: 30 min; temperature: 73℃; humidity: 10-20%)...
January 2018: European Journal of Preventive Cardiology
James Q Del Rosso, Emil A Tanghetti, Hilary E Baldwin, David A Rodriguez, Ilia L Ferrusi
Objective: Evaluate patients' perceptions of rosacea symptoms and treatments. Design: Cross-sectional, web-based survey conducted from May 8 to July 1,2015. Setting: E-mail invitation. Participants: Male and female adults in the United States who self-reported having a physician's diagnosis of rosacea. Measurements: Sociodemographic and clinical characteristics were collected for eligible respondents using the Self-Assessment of Rosacea Facial Redness scale and the Symptom Assessment for Rosacea Facial Bumps and Pimples questionnaire...
June 2017: Journal of Clinical and Aesthetic Dermatology
Sandra Coenen, Khe Tran, Jubi de Haan, Rob de Man
Heat stroke is a life-threatening condition characterised by hyperthermia leading to multiple organ dysfunction. Acute liver failure is a rare and potentially fatal consequence of heat stroke. Management of heat stroke is mainly supportive but liver transplantation can be considered as the treatment of acute liver failure in heat stroke. However, literature on liver transplantation as a treatment for acute liver failure in heat stroke is scarce. Until now, no cases of liver transplantation for acute liver failure in non-exertional heat stroke have been reported...
October 4, 2017: BMJ Case Reports
Setor K Kunutsor, Hassan Khan, Tanjaniina Laukkanen, Jari A Laukkanen
PURPOSE: We aimed to evaluate the joint impact of cardiorespiratory fitness (CRF) and frequency of sauna bathing (FSB) on the risk of cardiovascular and all-cause mortality. DESIGN: CRF measured by respiratory gas analyses and sauna exposure were assessed at baseline in a prospective study of 2277 men. CRF was categorized as low and high (median cut-offs) and FSB as low and high (≤2 and 3-7 sessions/week, respectively). RESULTS: During a median follow-up of 26...
October 16, 2017: Annals of Medicine
Jounghee Lee, Meixiang Jin, Heejung Son, Wenying Cui
OBJECTIVES: This study aimed at identifying the current nutrition knowledge, body-related perspectives, and weight control behaviors of Korean-Chinese college students. METHODS: We conducted a pilot study by employing a healthy weight education program targeting Korean-Chinese nursing school students at the Yanbian University of Science and Technology in Yanbian, China. RESULTS: This pilot study included 40 participants (38 women and 2 men; mean age, 20...
August 2017: Osong Public Health and Research Perspectives
Amy S Rosenberg, Zuben E Sauna
OBJECTIVE: Here we provide a critical review of the state of the art with respect to non-clinical assessments of immunogenicity for therapeutic proteins. KEY FINDINGS: The number of studies on immunogenicity published annually has more than doubled in the last 5 years. The science and technology, which have reached a critical mass, provide multiple of non-clinical approaches (computational, in vitro, ex vivo and animal models) to first predict and then to modify or eliminate T-cell or B-cell epitopes via de-immunization strategies...
September 5, 2017: Journal of Pharmacy and Pharmacology
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