The relationship of vitamin D to some diseases (review article)
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Univer Publ
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ABSTRACT
Vitamin D is called the sunshine vitamin, and it differs from the rest of the vitamins by not having to obtain it from food sources, so it is enough to be exposed to sunlight for 10 to 15 minutes a day on sunny days, or two to three times a week to obtain the needs of vitamin D In the majority of people, vitamin D3 is formed in the skin when 7 dihydrocholesterol-7 interacts with ultraviolet rays, where the peak of formation is between (280-320 nm), Its deficiency is a global phenomenon and has many pathological effects, some of which have been proven by research, and some of them are still under research and study to confirm or deny this relationship, as many studies indicated a relationship between it and Covid-19, as it was mentioned in a study in the Province of Mexico, which included 172 patients with Covid-19, that cases whose vitamin D3 level is less than (ng/ml8) need special care and hospitalization, Vitamin D deficiency inhibits the secretion of insulin from the pancreas and its reorganization, which leads to impaired glucose tolerance, and it was found that it has a major role in increasing fertility, and that its deficiency causes a decrease in pregnancy rates in women, and may also cause some hormonal disorders, and many complications have been associated with vitamin D deficiency in beta thalassemia patients, such as the prevalent growth failure in these patients as a result of chronic anemia, chelated toxicity, and iron overload, and iron-related endocrinopathy such as hypogonadism, hypothyroidism, and growth hormone deficiency.
Keywords
Vitamin D, Thalassemia, Sugar, Infertility, Covid 19..