23 research outputs found

    The disease of corruption: views on how to fight corruption to advance 21st century global health goals

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    Corruption has been described as a disease. When corruption infiltrates global health, it can be particularly devastating, threatening hard gained improvements in human and economic development, international security, and population health. Yet, the multifaceted and complex nature of global health corruption makes it extremely difficult to tackle, despite its enormous costs, which have been estimated in the billions of dollars. In this forum article, we asked anti-corruption experts to identify key priority areas that urgently need global attention in order to advance the fight against global health corruption. The views shared by this multidisciplinary group of contributors reveal several fundamental challenges and allow us to explore potential solutions to address the unique risks posed by health-related corruption. Collectively, these perspectives also provide a roadmap that can be used in support of global health anti-corruption efforts in the post-2015 development agenda

    Molecular methods for the genetic identification of salmonid prey from Pacific harbor seal (Phoca vitulina richardsi) scat

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    Twenty-six stocks of Pacific salmon and trout (Oncorhynchus spp.), representing evolutionary significant units (ESU), are listed as threatened or endangered under the Endangered Species Act (ESA) and six more stocks are currently being evaluated for listing. The ecological and economic consequences of these listings are large; therefore considerable effort has been made to understand and respond to these declining populations. Until recently, Pacific harbor seals (Phoca vitulina richardsi) on the west coast increased an average of 5% to 7% per year as a result of the Marine Mammal Protection Act of 1972 (Brown and Kohlman2). Pacific salmon are seasonally important prey for harbor seals (Roffe and Mate, 1984; Olesiuk, 1993); therefore quantifying and understanding the interaction between these two protected species is important for Morphobiologically sound management strategies. Because some Pacific salmonid species in a given area may be threatened or endangered, while others are relatively abundant, it is important to distinguish the species of salmonid upon which the harbor seals are preying. This study takes the first step in understanding these interactions by using molecular genetic tools for species-level identification of salmonid skeletal remains recovered from Pacific harbor seal scats

    Interactions Between Descending and Somatosensory Inputs in Humans

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    In this study, we assessed the corticospinal integration in healthy people while seated. Corticospinal integration was assessed by establishing the latency and amplitude of motor evoked potentials (MEPs) evoked following transcranial magnetic stimulation (TMS) of the primary motor cortex area representing the leg muscles, and the latency and amplitude of spinally-mediated reflex responses. Further, the modulation pattern of the spinally-mediated reflex responses were determined following subthreshold and suprathreshold TMS. All compound muscle action potentials, descending motor or spinally-mediated reflexes were recorded from the leg muscles through surface electromyography. Both subthreshold and suprathreshold TMS induced a similar modulation pattern on the TA short-latency (~75 ms) flexor reflex. The conditioned flexor reflex was facilitated when test and conditioning stimuli interacted at subcortical/cortical levels, and depressed when interaction occurred at spinal level. Similarly, TA MEPs were facilitated upon foot stimulation at sensory and at reflex threshold intensities, when test and conditioning stimuli interacted at subcortical/cortical levels. No effects were observed on the conditioned TA MEPs when interaction occurred at spinal level. Descending and somatosensory inputs increase corticospinal and spinal reflex excitability when integration occurs at supraspinal levels. In neurological disorders, corticospinal excitability can be strengthened through paired cortical and peripheral stimulation paradigms when neuronal integration occurs at cortical levels

    Association between Sedentary Behaviour and Physical, Cognitive, and Psychosocial Status among Older Adults in Assisted Living

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    Objective. Identification of the factors that influence sedentary behaviour in older adults is important for the design of appropriate intervention strategies. In this study, we determined the prevalence of sedentary behaviour and its association with physical, cognitive, and psychosocial status among older adults residing in Assisted Living (AL). Methods. Participants (, mean age = 86.7) from AL sites in British Columbia wore waist-mounted activity monitors for 7 consecutive days, after being assessed with the Timed Up and Go (TUG), Montreal Cognitive Assessment (MoCA), Short Geriatric Depression Scale (GDS), and Modified Fall Efficacy Scale (MFES). Results. On average, participants spent 87% of their waking hours in sedentary behaviour, which accumulated in 52 bouts per day with each bout lasting an average of 13 minutes. Increased sedentary behaviour associated significantly with scores on the TUG (, ) and MFES (, ), but not with the MoCA or GDS. Sedentary behaviour also associated with male gender, use of mobility aid, and multiple regression with increased age. Conclusion. We found that sedentary behaviour among older adults in AL associated with TUG scores and falls-related self-efficacy, which are modifiable targets for interventions to decrease sedentary behaviour in this population

    Skeletal muscle gene expression in response to resistance exercise: sex specific regulation

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    <p>Abstract</p> <p>Background</p> <p>The molecular mechanisms underlying the sex differences in human muscle morphology and function remain to be elucidated. The sex differences in the skeletal muscle transcriptome in both the resting state and following anabolic stimuli, such as resistance exercise (RE), might provide insight to the contributors of sexual dimorphism of muscle phenotypes. We used microarrays to profile the transcriptome of the biceps brachii of young men and women who underwent an acute unilateral RE session following 12 weeks of progressive training. Bilateral muscle biopsies were obtained either at an early (4 h post-exercise) or late recovery (24 h post-exercise) time point. Muscle transcription profiles were compared in the resting state between men (n = 6) and women (n = 8), and in response to acute RE in trained exercised vs. untrained non-exercised control muscle for each sex and time point separately (4 h post-exercise, n = 3 males, n = 4 females; 24 h post-exercise, n = 3 males, n = 4 females). A logistic regression-based method (LRpath), following Bayesian moderated t-statistic (IMBT), was used to test gene functional groups and biological pathways enriched with differentially expressed genes.</p> <p>Results</p> <p>This investigation identified extensive sex differences present in the muscle transcriptome at baseline and following acute RE. In the resting state, female muscle had a greater transcript abundance of genes involved in fatty acid oxidation and gene transcription/translation processes. After strenuous RE at the same relative intensity, the time course of the transcriptional modulation was sex-dependent. Males experienced prolonged changes while females exhibited a rapid restoration. Most of the biological processes involved in the RE-induced transcriptional regulation were observed in both males and females, but sex specificity was suggested for several signaling pathways including activation of notch signaling and TGF-beta signaling in females. Sex differences in skeletal muscle transcriptional regulation might implicate a mechanism behind disproportional muscle growth in males as compared with female counterparts after RE training at the same relative intensity.</p> <p>Conclusions</p> <p>Sex differences exist in skeletal muscle gene transcription both at rest and following acute RE, suggesting that sex is a significant modifier of the transcriptional regulation in skeletal muscle. The findings from the present study provide insight into the molecular mechanisms for sex differences in muscle phenotypes and for muscle transcriptional regulation associated with training adaptations to resistance exercise.</p

    Inhibition of HIV infection by co-ordinated blockade of multiple steps in the virus life-cycle

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    EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Knowledge, attitudes and practices associated with menopause: A multi-ethnic qualitative study in Singapore

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    We explored knowledge, attitudes, and practices associated with the menopause transition particular to women in the multi-ethnic cultural context of Singapore. Fifty-eight Chinese, Malay, and Indian Singaporean women participated in interviews that were audiorecorded, transcribed verbatim, and analyzed using thematic analysis. Women from all three ethnicities described an attitude of acceptance surrounding menopause and the changes associated with it. While they thought it was important to be informed, they did not seek out information about menopause and did not view health professionals as useful sources of information. Management practices were diverse and rarely involved accessing health professionals

    The feasibility of a pilot intervention for parents of young children newly diagnosed with Type 1 diabetes

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    OBJECTIVE: Evaluate the feasibility, acceptability, and indicators of preliminary efficacy of the pilot of a parent-focused, phone-based intervention to improve glycemic control and parental and child well-being in young children newly diagnosed with type 1 diabetes (T1D). METHODS: Thirty mothers of young children ages 1–6 diagnosed with T1D for less than 6 months were randomized to either a phone-based intervention or physical activity education comparison program. Child HbA1c and parent report of depressive symptoms, stress, social support, and child quality of life were assessed at baseline, 1, 6, and 12 months post intervention. RESULTS: The program was feasible, as the majority of participants completed more than 80% of the intervention or comparison education sessions and reported high levels of satisfaction. Overall, there was a significant time by treatment intervention where the intervention group demonstrated improved social support and quality of life over time as compared to the comparison education group. The intervention demonstrated a trend towards moderating the association between baseline maternal depressive symptoms and prospective worsening of HbA1c. CONCLUSIONS: Parents of young children newly diagnosed with T1D can be engaged in a phone-based program to provide support during this vulnerable period
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