More recently , direct observations regarding the function of fetal nervous systems have been made , but these studies are limited by uncertainty regarding comparisons between mature and immature systems ( 1 ) 最近，对胎儿神经系统功能进行了直接观察，但是这些研究受到对照间系统功能发育成熟与否不确定的限制[ 1 ] 。
The definitive cause is unknown , but it is known that progressive destruction of nerve cells in the brain can lead to the depletion of a neurotransmitter called dopamine , which in turn leads to parkinsonism 其真正原因还未有一致的结论，目前知道是由于脑内部份神经系统功能受损，引致一些称为多巴胺的神经传导物质减少。
The definitive cause is unknown , but it is known that progressive destruction of nerve cells in the brain can lead to the depletion of a neurotransmitter called dopamine , which in turn leads to parkinsonism 其真正原因还未有一致的结论，目前知道是由于脑内部份神经系统功能受损，引致一些称为多巴胺的神经传导物质减少。
Estrogen through binding specific estrogen department of physiology 7 receptor ( er ) in nucleus , functions like a nucleus transcription factor and modulates expression of some genes . it has been found that there exist two subtypes of er . there are a and p subunits which are different in their distribution , density and mediated action 雌激素调节神经系统功能往往通过雌激素受体（ estrogenreceptor ， er ）蛋白介导。 er属于类固醇受体超家族的核受体，具a 、 p两种亚型，此二者在各种组织分布及密度泅异。
The patient with neurasthenic such as fatigue , slackness , weakness , and sleep disorder can use far infrared magnetic bedclothing , which features several advantages : thermal effect of far infrared helps to relieve the pain and tranquilize you . the far infrared magnetic mattress has a good effect in adjusting the functions of vegetable nerve and nerve system , improving the anxiety , and tranquilizing you . the far infrared textile is able to improve the microcirculation of blood , activate the tissue cells , and strengthen the metabolism in an effort to eliminate the fatigue 可以，对于疲劳无力，虚弱感及睡眠障碍为主的神经衰弱，用远红外磁疗寝具具有几大好处： a远红外的温热效应，有利于镇痛安眠作用b远红外磁疗床垫对于调节植物神经系统功能和神经系统，改善焦虑状态，镇痛安神都有良好的效果c远红外纺织品可以改善微循环，活化组织细胞，加强代谢产物的排出，对消除疲劳有很好的作用。
