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英《泰晤士报》1981年5月25日科学报道:维多利亚时代的科学家们在分析蝴蝶翅膀的灿烂色彩时,发现这些颜色是由一种叫做蝶呤的化学物质造成的。一百年后的实验表明,这种化合物在脑的化学中起重要的作用。蝶呤是一些酶的辅因子,把三种氨基酸,苯丙氨酸、酪氨酸和色氨酸转变为神经介质。缺少这些因子可造成严重的精神发育迟缓。美国的研究人员估计一种最常见的先天性精神疾病,苯丙酮尿,10％是由于脑不能制造
The Times The Times 25 May 1981 Science Report: Victorian scientists, when analyzing the splendid colors of butterfly wings, discovered that these colors were caused by a chemical called pterin. One hundred years later experiments show that this compound plays an important role in brain chemistry. Pterin is a cofactor for enzymes that convert three amino acids, phenylalanine, tyrosine and tryptophan into neurotransmitters. The lack of these factors can cause severe mental retardation. US researchers estimate that one of the most common congenital mental disorders, phenylketonuria, 10% is due to brain can not be made