Vitamin D Deficiency最新文献

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Vitamin D Deficiency and Diabetes Mellitus 维生素D缺乏与糖尿病
Vitamin D Deficiency Pub Date : 2019-10-07 DOI: 10.5772/intechopen.89543
I. Shymanskyi, O. Lisakovska, A. Mazanova, M. Veliky
{"title":"Vitamin D Deficiency and Diabetes Mellitus","authors":"I. Shymanskyi, O. Lisakovska, A. Mazanova, M. Veliky","doi":"10.5772/intechopen.89543","DOIUrl":"https://doi.org/10.5772/intechopen.89543","url":null,"abstract":"Vitamin D (VD) is a molecule that can be synthesized directly in the humans’ body or enter the organism with food in the form of inactive precursors. To exert its biological action, VD undergoes two-stage hydroxylation (at the 25th and 1st position) catalyzed by cytochromes P450, the presence of which has already been shown in almost all tissues of the human body. The product of hydroxylation is hormone-active form of vitamin D–1,25(OH)2D. 1,25(OH)2D binds to specific vitamin D receptor (VDR) and regulates the expression of genes involved in bone remodeling (classical function) and genes that control immune response, hormone secretion, cell proliferation, and differentiation (nonclassical functions). VD deficiency is prevalent around the globe and may be one of the key factors for diabetes development. The direct association between vitamin D deficiency and type 1 (T1D) and type 2 (T2D) diabetes has been proven. Detection of VDR in pancreas and adipose tissue, skeletal muscles, and immune cells allowed implying the antidiabetic role of vitamin D by enhancing insulin synthesis and exocytosis, increasing the expression of the insulin receptor, and modulating immune cells’ functions. This chapter summarizes data about relationship between VD insufficiency/deficiency and development of T1D and T2D, and their complications.","PeriodicalId":447144,"journal":{"name":"Vitamin D Deficiency","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129789332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Vitamin D and Its Deficiency in Saudi Arabia 沙特阿拉伯的维生素D及其缺乏
Vitamin D Deficiency Pub Date : 2019-08-20 DOI: 10.5772/INTECHOPEN.88745
F. Bokhari, Mai Albaik
{"title":"Vitamin D and Its Deficiency in Saudi Arabia","authors":"F. Bokhari, Mai Albaik","doi":"10.5772/INTECHOPEN.88745","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.88745","url":null,"abstract":"Vitamin D is a hot topic that has attracted attention over the past 10 years, especially since a large proportion of people suffer from this nutrient deficiency. Vitamin D deficiency is estimated to be about 1 billion people all over the world and 50% in Asia and the Middle East. Saudi Arabia has also demonstrated a high prevalence of vitamin D deficiency among healthy Saudi individuals. This chapter provides, in detail, a clear and understandable identification of vitamin D, its function, source, synthesis, metabolism, status, and deficiency. The chapter also focuses on studying vitamin D deficiency in Saudi Arabia based on PubMed’s initial research criteria.","PeriodicalId":447144,"journal":{"name":"Vitamin D Deficiency","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127940364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
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