維生素A與腦發(fā)育的研究進(jìn)展
[Abstract]:Vitamin A (vitaminA,VA) is one of the most important micronutrients in human body, which plays an important role in maintaining the integrity of epithelial cells, regulating vision, immunity, reproductive function and embryonic growth and development. Vitamin A deficiency (vitamin A deficiency,VAD) has become a public health problem, with children and pregnant women at risk. Maternal pregnancy and early postnatal VAD can cause offspring growth and development disorders, leading to a variety of congenital malformations. In the aspect of brain development, VAD can lead to the loss of post-embryonic brain, the axial abnormality of the dorsal ventral axis of notochord (D-V axis), fetal hydrocephalus and anencephaly, which can impair the functions of learning, memory and cognition. In recent years studies have shown that VA and its active metabolite retinoic acid (retinoic acid,RA) are closely related to brain morphology and functional development and play an important role in controlling neural differentiation neural tube regulation mode and maintaining synaptic plasticity. This effect is achieved through complex signaling pathways that regulate target gene expression. Basic experiments have shown that vitamin A intervention (vitaminAintervention,VAI) can improve brain damage induced by VAD. In this review, the role of vitamin A and its active metabolites in brain development, the related mechanisms and the intervention are reviewed.
【學(xué)位授予單位】:重慶醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:R151
【參考文獻(xiàn)】
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