But it may be one no longer. A group of Dr Rao's colleagues, led by Jonathan Stamler, think the answer is a gas called nitric oxide-or, rather, a lack of it.
一组饶博士的同事，在约翰森·斯塔姆勒(jonathan Stamler)的领导下提出谜底可能就是一氧化氮——不是搀杂，而是缺乏。
The-COOH contents in HA increases, phenolic-OH group decreases and the chemical acidity of acidic functional groups increases when HA is oxidized by nitric acid.
用硝酸氧化能使ha中羧基含量增加，酚羟基减少，酸性功能团活性提高。
The ulcer index (UI), gastric mucosal blood flow (GMBF) and nitric oxide (NO) content in gastric mucosa were measured in rats of every group.
检测三组大鼠胃粘膜的溃疡指数（UI）、胃粘膜血流量（GMBF）和胃粘膜一氧化氮（NO）的含量的变化。
Biogenic amine is a kind of low molecular compounds belonging to nitric fatty group or heterocycle group.
生物胺是一类含氮的脂肪族或杂环类低分子化合物。
Biogenic amine is a kind of low molecular weight compounds containing nitric fatty group or heterocycle group. They have biological importance in vegetable, microbial and animal cells.
生物胺是一类含氮的脂肪族或杂环类低分子化合物，对动植物和微生物活性细胞有重要的生理作用。
Content of nitric oxide and activity of NOS in skeletal muscle of rats of each group were detected at different phase.
分别测定各组大鼠不同时相点骨骼肌中一氧化氮含量和一氧化氮合酶活性。
Methods The serum nitric oxide levels in different perinatal periods were determined and were compared with those in non-pregnant group.
方法：分别检测非妊娠期及围产期妇女不同时期血清一氧化氮浓度并进行比较。
Methods The serum nitric oxide levels in different perinatal periods were determined and were compared with those in non-pregnant group.
方法：分别检测非妊娠期及围产期妇女不同时期血清一氧化氮浓度并进行比较。
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