Sjöström R, Ekstedt J, Anggård E
J Neurol Neurosurg Psychiatry. 1975 Jul;38(7):666-8. doi: 10.1136/jnnp.38.7.666.
The monamine metabolites 5-hydroxyindoleacetic acid (5-HIAA), homovanillic acid (HVA), vanillylmandelic acid (VMA), and 4-hydroxy-3-methoxyphenylglycol (HMPG) were analysed in CSF from different regions of the CSF system to study the caudocranial concentration gradient of the metabolites. Four consecutive 10 ml fractions of CSF were withdrawn in 17 patients during the course of four minutes. The CSF pressure was monitored through a lumbar cannula because of suspected adult hydrocephalus. A pronounced gradient of the HVA concentration was found with a ratio between the last and the first fraction of 1,7. 5-HIAA showed a slight increase while HMPG and VMA showed no increase at higher levels of the CSF system. The results suggest that lumbar HVA reflects dopaminergic activity in the brain, whereas lumbar 5-HIAA and HMPG/VMA reflect the activity of 5-hydroxytryptamine and noradrenaline secreting neurones in both the brain and the spinal cord.
分析了脑脊液(CSF)系统不同区域脑脊液中的单胺代谢产物5-羟吲哚乙酸(5-HIAA)、高香草酸(HVA)、香草扁桃酸(VMA)和4-羟基-3-甲氧基苯乙二醇(HMPG),以研究这些代谢产物的尾颅浓度梯度。在4分钟内,从17例患者中连续抽取4个10 ml的脑脊液样本。由于怀疑成人脑积水,通过腰椎插管监测脑脊液压力。发现HVA浓度存在明显梯度,最后一份与第一份的比值为1.7。5-HIAA略有增加,而在脑脊液系统较高水平时,HMPG和VMA没有增加。结果表明,腰椎HVA反映大脑中的多巴胺能活性,而腰椎5-HIAA和HMPG/VMA反映大脑和脊髓中5-羟色胺和去甲肾上腺素分泌神经元的活性。