Ikeda K, Kinoshita M, Iwasaki Y, Shiojima T, Takamiya K
Fourth Department of Internal Medicine, Toho, Japan.
Int J Neurosci. 1989 Sep;48(1-2):19-23. doi: 10.3109/00207458909002149.
We studied trophic effects of angiotensin II, vasopressin and oxytocin on explanted ventral spinal cord cultures from 13-14-old day rat embryos. There was a significant neurite promoting effect in angiotensin II and vasopressin-treated cultures. Angiotensin II had the most potent effect at any concentrations. It became clear that minimum effective concentration was 10(-8) M in angiotensin II and vasopressin respectively. Effect of these two neuropeptides was concentration-dependent. However, oxytocin had no neurotrophic effect at any concentrations. Our results demonstrated that angiotensin II and vasopressin have a neurotrophic effect on ventral spinal cord in cultures, and may contribute to therapeutic strategy of amyotrophic lateral sclerosis.
