Obstructive sleep apnoea and sexual function in men

Obstructive sleep apnoea (OSA) is associated with sexual dysfunction. Untreated OSA and erectile dysfunction (ED) have both been identified as being indicative of a high risk of developing cardiovascular disease. Treatments for ED, such as testosterone supplementation or PDE-5 inhibitors, and for OSA, such as Continuous Positive Airways Pressure (CPAP) are both readily available. The effects of these treatments on the other associated conditions have not been fully assessed. The efficacy of testosterone supplementation, in untreated OSA, on sexual function and quality of life has not been investigated. PDE-5 inhibitors are an established treatment for erectile dysfunction, however, there is a paucity of information regarding their efficacy in OSA, and there is a theoretical risk of worsening of OSA with their use. CPAP, in some observational and non-treatment or alternative treatment controlled studies, has been shown to improve erection function in men with OSA, however the majority of these studies have been in men with OSA, with and without ED. Two randomised controlled trials investigating the effects of testosterone in untreated OSA (n=67), and the effects of CPAP and a PDE-5 inhibitor in men with OSA and ED using a factorial design (n=61) were performed. Sleep, sexual function and quality of life was assessed. CPAP increased the quantity of nocturnal erections and a PDE-5 inhibitor improved their quality. However, neither CPAP use, exogenous testosterone nor a PDE-5 inhibitor improved subjective erectile function in men with OSA. Post-hoc analysis showed that adherent CPAP use (>4hours per night) increased subjective erectile function and sexual desire, as well as several parameters of quality of life in men with OSA and ED. Testosterone also increased sexual desire in men with OSA

High-intensity interval exercise induces greater acute changes in sleep, appetite-related hormones, and free-living energy intake than does moderate-intensity continuous exercise

© 2019, Canadian Science Publishing. All rights reserved. The aim of this study was to compare the effect of high-intensity interval exercise (HIIE) and moderate-intensity continuous exercise (MICE) on sleep characteristics, appetite-related hormones, and eating behaviour. Eleven overweight, inactive men completed 2 consecutive nights of sleep assessments to determine baseline (BASE) sleep stages and arousals recorded by polysomnography (PSG). On separate afternoons (1400–1600 h), participants completed a 30-min exercise bout: either (i) MICE (60% peak oxygen consumption) or (ii) HIIE (60 s of work at 100% peak oxygen consumption: 240 s of rest at 50% peak oxygen consumption), in a randomised order. Measures included appetite-related hormones (acylated ghrelin, leptin, and peptide tyrosine tyrosine) and glucose before exercise, 30 min after exercise, and the next morning after exercise; PSG sleep stages; and actigraphy (sleep quantity and quality); in addition, self-reported sleep and food diaries were recorded until 48 h after exercise. There were no between-trial differences for time in bed (p = 0.19) or total sleep time (p = 0.99). After HIIE, stage N3 sleep was greater (21% ± 7%) compared with BASE (18% ± 7%; p = 0.02). In addition, the number of arousals during rapid eye movement sleep were lower after HIIE (7 ± 5) compared with BASE (11 ± 7; p = 0.05). Wake after sleep onset was lower following MICE (41 min) compared with BASE (56 min; p = 0.02). Acylated ghrelin was lower and glucose was higher at 30 min after HIIE when compared with MICE (p ≤ 0.05). There were no significant differences between conditions in terms of total energy intake (p ≥ 0.05). HIIE appears to be more beneficial than MICE for improving sleep quality and inducing favourable transient changes in appetite-related hormones in overweight, inactive men. However, energy intake was not altered regardless of exercise intensity

Evening high-intensity interval exercise does not disrupt sleep or alter energy intake despite changes in acylated ghrelin in middle-aged men

© 2019 The Authors. Experimental Physiology © 2019 The Physiological Society New Findings: What is the central question of this study? What are the interactions between sleep and appetite following early evening high-intensity interval exercise (HIIE)? What is the main finding and its importance? HIIE can be performed in the early evening without subsequent sleep disruptions and may favourably alter appetite-related hormone concentrations. Nonetheless, perceived appetite and energy intake do not change with acute HIIE regardless of time of day. Abstract: Despite exercise benefits for sleep and appetite, due to increased time restraints, many adults remain inactive. Methods to improve exercise compliance include preferential time-of-day or engaging in short-duration, high-intensity interval exercise (HIIE). Hence, this study aimed to compare effects of HIIE time-of-day on sleep and appetite. Eleven inactive men undertook sleep monitoring to determine baseline (BASE) sleep stages and exclude sleep disorders. On separate days, participants completed 30 min HIIE (60 s work at 100% (Formula presented.), 240 s rest at 50% (Formula presented.)) in (1) the morning (MORN; 06.00–07.00 h), (2) the afternoon (AFT; 14.00–16.00 h) and (3) the early evening (EVEN: 19.00–20.00 h). Measures included appetite-related hormones (acylated ghrelin, leptin, peptide tyrosine tyrosine) and glucose pre-exercise, 30 min post-exercise and the next morning; overnight polysomnography (PSG; sleep stages); and actigraphy, self-reported sleep and food diaries for 48 h post-exercise. There were no between-trial differences for total sleep time (P = 0.46). Greater stage N3 sleep was recorded for MORN (23 ± 7%) compared to BASE (18 ± 7%; P = 0.02); however, no between-trial differences existed (P > 0.05). Rapid eye movement (REM) sleep was lower and non-REM sleep was higher for EVEN compared to BASE (P ≤ 0.05). At 30 min post-exercise, ghrelin was higher for AFT compared to MORN and EVEN (P = 0.01), while glucose was higher for MORN compared to AFT and EVEN (P ≤ 0.02). No between-trial differences were observed for perceived appetite (P ≥ 0.21) or energy intake (P = 0.57). Early evening HIIE can be performed without subsequent sleep disruptions and reduces acylated ghrelin. However, perceived appetite and energy intake appear to be unaffected by HIIE time of day

Westinghouse Electric Company Atomic Power Department Report WCAP-3017-6093

Quarterly report regarding the activities of the Yankee Core Evaluation Program, the purpose of which is to evaluate the performance of the core used in the Yankee Plant and to compare actual performance with predictions, as well as the revision of designs to address any differences between actual and predicted performance

Narratives of Shamans in Contemporary Japan

A study undertaken in Hervey Bay, Queensland, investigated the potential of creating an indigenous agribusiness opportunity based on the cultivation of indigenous Australian vegetables and herbs. Included were warrigal greens (WG) (Tetragonia tetragonioides), a green leafy vegetable and the herb sea celery (SC) (Apium prostratum); both traditional foods of the indigenous population and highly desirable to chefs wishing to add a unique, indigenous flavour to modern dishes. Packaging is important for shelf life extension and minimisation of postharvest losses in horticultural products. The ability of two packaging films to extend WG and SC shelf life was investigated. These were Antimisted Biaxial Oriented Polypropylene packaging film (BOPP) without perforations and Antifog BOPP Film with microperforations. Weight loss, packaging headspace composition, colour changes, sensory differences and microbial loads of packed WG and SC leaves were monitored to determine the impact of film oxygen transmission rate (OTR) and film water vapour transmission (WVT) on stored product quality. WG and SC were harvested, sanitised, packed and stored at 4°C for 16 days. Results indicated that the OTR and WVT rates of the package film significantly (PKLEINERDAN0.05) influenced the package headspace and weight loss, but did not affect product colour, total bacteria, yeast and mould populations during storage. There was no significant difference (PGROTERDAN0.05) in aroma, appearance, texture and flavour for WG and SC during storage. It was therefore concluded that a shelf life of 16 days at 4°C, where acceptable sensory properties were retained, was achievable for WG and SC in both packaging films

High-intensity interval exercise induces greater acute changes in sleep, appetite-related hormones and free-living energy intake compared to moderate-intensity continuous exercise

Compare the effect of high-intensity interval and moderate-intensity continuous exercise on sleep characteristics, appetite-related hormones and eating behaviour. 11 overweight, inactive men completed two consecutive nights of sleep assessments to determine baseline (BASE) sleep stages and arousals recorded by polysomnography (PSG). On separate afternoons (1400-1600h), participants completed a 30min exercise bout: 1) moderate-intensity continuous exercise (MICE; 60% V̇O2peak) or 2) high-intensity interval exercise (HIIE; 60s work at 100% V̇O2peak: 240s rest at 50% V̇O2peak), in a randomised order. Measures included appetite-related hormones (acylated ghrelin, leptin, peptide tyrosine tyrosine) and glucose pre-exercise, 30min post-exercise, and the next morning post-exercise; PSG sleep stages, actigraphy (sleep quantity and quality), and self-reported sleep and food diaries were recorded until 48h post-exercise. There was no between-trial differences for time in bed (p=0.19) or total sleep time (p=0.99). For HIIE, stage N3 sleep was greater (21 ± 7%) compared to BASE (18 ± 7%; p=0.02). Also, number of arousals during rapid eye movement sleep were lower for HIIE (7 ± 5) compared to BASE (11 ± 7; p=0.05). Wake after sleep onset was lower following MICE (41min) compared to BASE (56min; p=0.02). Acylated ghrelin was lower and glucose higher at 30min post-exercise for HIIE compared to MICE (p≤0.05). There were no significant differences in total energy intake between conditions (p≥0.05). HIIE appears more beneficial than MICE for improving sleep quality and inducing favourable transient changes in appetite-related hormones in overweight, inactive men. However, energy intake was not altered regardless of exercise intensity.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author