Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
Date (from‐to) : 2012/04 -2015/03
Author : KOBAYASHI TAKAHIRO; KOHRI Kenjiro; YASUI Takahiro; OKADA Atsuhi; HAMAMOTO Shuzo; TAGUCHI Kazumi
This study was planned to confirm the prevention of kidney stone formation (KSF) with TRPV1-promoter and to elucidate the role of the CGRP. As the preliminary study, administration of the Capsicine caused animal death. Therefore, We confirmed whether green tea (GT) or Rooibos tea (RT) having TRPV1 activity had preventive effects. As a result, a tendency to decrease of urinary crystals by GT or RT was demonstrated. Furthermore, because several problems were occurred for the breeding of CGRP knockout mice, we paid attention to cyclophilin D (CpD), the mitochondrial membranous substance, and introduced CpD knockout mice (KO) and spread. The KO had less number of kidney crystals than wild type (WT) and showed lower expression of the stone and apoptosis-related gene and fewer amount of mitochondrial collapse images with the transmission electron microscope than WT. It was thought that the cyclophilin D inhibition could become the new preventive agent for the kidney stone formation.