摘要
本研究用人工紫外线照射大白鼠12周,观察照射期间及照射停止后血清钙、磷、碱性磷酸酶浓度变化及胫骨骨化情况,探讨紫外线照射剂量与停照后钙磷代谢效应关系。结果表明:1/4MED(最小红斑量)照射,即可以保持照射期间钙磷代谢正常,也可以维持到照射停止后12周。说明夏秋季每天1/4MED的日照,即使冬季无日照也可以维持冬季钙磷代谢正常。而南向居室内每天有充足日照并不能预防佝偻病。
The rats were exposed to artificial ultraviolet (UV) irradiation for 12 weeks, the relations of UV dose to Ca&P matabolism during and after UV exposure were inquired. The results show that 1/4 MED (minimal erythemal dose) UV exposure can maintain normal Ca&P metabolism not only during UV exposure but can also after ceasing exposure. It suggests that people who have 1/4 MED sunshine exposure per day in previons summer and autumn can maintain normal Ca&P metabolism in all winter season even without sunshine. The sunshine exposure alone in south oriented room can't prevent the occurance of rickets.
关键词
佝偻病
紫外线照射
钙磷代谢
Ricket Ultraviolet expoaure
Ca &P metabolism
