65 research outputs found
The protective effect of helmet use in motorcycle and bicycle accidents: a propensity score–matched study based on a trauma registry system
The immune system and the impact of zinc during aging
The trace element zinc is essential for the immune system, and zinc deficiency affects multiple aspects of innate and adaptive immunity. There are remarkable parallels in the immunological changes during aging and zinc deficiency, including a reduction in the activity of the thymus and thymic hormones, a shift of the T helper cell balance toward T helper type 2 cells, decreased response to vaccination, and impaired functions of innate immune cells. Many studies confirm a decline of zinc levels with age. Most of these studies do not classify the majority of elderly as zinc deficient, but even marginal zinc deprivation can affect immune function. Consequently, oral zinc supplementation demonstrates the potential to improve immunity and efficiently downregulates chronic inflammatory responses in the elderly. These data indicate that a wide prevalence of marginal zinc deficiency in elderly people may contribute to immunosenescence
Using theories of change in the CGIAR Research Program on Agriculture for Nutrition and Health
Fluoride concentrations of the surface enamel of children living in an optimally fluoridated community
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