After testing the impact of these drugs on mouse neurons, they identified one candidate—fluphenazine, previously prescribed for schizophrenia—that successfully inhibited not only tetrahydrobiopterin but pain too.

在测试了这些药物对小鼠神经元的影响后，他们确定了一种候选药物——氟奋乃静，以前曾为精神分裂症开过处方——它不仅成功地抑制了四氢生物蝶呤，而且还成功地抑制了疼痛。

Though the precise connection between tetrahydrobiopterin and pain is still unclear, Dr Cronin and colleagues are nonetheless looking for ways to reduce its levels in the body.

尽管四氢生物蝶呤与疼痛之间的确切联系仍不清楚，但 Cronin 博士及其同事仍在寻找降低其在体内水平的方法。

Shane Cronin, a biologist at Harvard Medical School, is part of a team of researchers that has spent more than a decade identifying a correlation between chronic pain and levels of a naturally occurring molecule in the body known as tetrahydrobiopterin.

哈佛医学院的生物学家 Shane Cronin 是一个研究小组的成员，该小组花了十多年时间确定慢性疼痛与体内天然存在的四氢生物蝶呤分子水平之间的相关性。