Plasma and gastric juice substance P (SP), vasoactive intestinal peptide (VIP) and leu-enkephalin (LEK) were measured by radioimmunoassaykit.
血浆和胃液物质P(sP)、血管活性肠肽(VIP)和亮脑啡肽(LEK)均用放射免疫法测定。
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Methods: Plasma et levels were determined by using a radioimmunoassaykit, serum no levels were determined by using a nitrate reductase method in 20 newborn with HIE and 20 normal newborn.