论文部分内容阅读
Objects:Nitric oxide (NO) is highly unstable and has a half-life of seconds in buffer solutions.It is synthesized by NO-synthase (NOS) which has been found to exist in the following three isoforms:neuro nitric oxide synthase (nNOS),inducible nitric oxide synthase (iNOS),and endothelial nitric oxide synthase (eNOS).NOS activity is localized in the reproductive tracts of many species,although direct evidence for NOS isoforms in the Fallopian tubes of mice is still lacking.