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维生素 A 是一种脂溶性维生素.过去认为是维持上皮组织正常机能状态所必需的物质,主要参与组织间质中的粘多糖合成,并参与视网膜内杆细胞中视紫红质的合成。因此多用于防治夜盲症、干眼病等维生素 A 缺乏症。近年来,对维生素 A 研究逐渐增多,开阔了维生素 A 的临床用途,现已扩展于治疗胃溃疡、月经过多、痤疮、瘢痕增生及瘢痕疙瘩。一、治疗胃溃疡:维生素 A 对人和其它动物具有上皮保护作用.实验证明,维生素 A 治疗胃溃疡主要是通过对胃粘膜的保护效应而发挥作用。有人对60名慢性胃溃疡患者用多中心性随机对照方法分三组,研究了维生素 A 的胃细胞保护效应,结果加用维生素 A(每次5万单位,每天3次)的各组与
Vitamin A is a fat-soluble vitamin that was previously considered to be essential for maintaining the normal functioning of epithelial tissue and is primarily involved in the synthesis of mucopolysaccharides in the interstitial tissue of the tissue and involved in rhodopsin synthesis in rod cells within the retina. Therefore, prevention and treatment of night blindness, dry eye and other vitamin A deficiency. In recent years, research on vitamin A has been gradually increased, broadening the clinical use of vitamin A, has now been extended to the treatment of gastric ulcer, menorrhagia, acne, scar hyperplasia and keloids. First, the treatment of gastric ulcer: Vitamin A on human and other animals with epithelial protection experiments show that vitamin A treatment of gastric ulcer mainly through the protective effect of gastric mucosa and play a role. Some 60 patients with chronic gastric ulcer in patients with multi-center randomized controlled trials divided into three groups, the study of vitamin A gastric protective effect, the results plus vitamin A (each 50,000 units, 3 times a day) of each group and