BACKGROUND: Hydrogen peroxide is enzymatically processed by catalase, and catalase deficiency in blood is known as acatalasemia. We examined whether low catalase activity is a risk factor for diabetes mellitus. METHODS: Blood glucose, insulin and glucose tolerance test were examined in acatalasemic and normal mice under non-stress and oxidative stress conditions. Alloxan administration was used as oxidative stress. RESULTS: Alloxan, which was a drug that caused diabetes mellitus, mostly generated hydrogen peroxide by the reaction of alloxan and reduced glutathione, in vitro. Incidence of hyperglycemia in alloxan-untreated acatalasemic mice was as low as that in the normal mice. However, the incidence of acatalasemia mice treated with alloxan was higher than that in normal mice, and the number of pancreatic beta-cells in the acatalasemic mice was less than that in normal mice. CONCLUSION: These results indicate that low catalase activity in the blood is associated with the diabetes mellitus caused by alloxan administration.
BACKGROUND:Hydrogen peroxide is enzymatically processed by catalase, and catalase deficiency in blood is known as acatalasemia. We examined whether low catalase activity is a risk factor for diabetes mellitus. METHODS:Blood glucose, insulin and glucose tolerance test were examined in acatalasemic and normal mice under non-stress and oxidative stress conditions. Alloxan administration was used as oxidative stress. RESULTS:Alloxan, which was a drug that caused diabetes mellitus, mostly generated hydrogen peroxide by the reaction of alloxan and reduced glutathione, in vitro. Incidence of hyperglycemia in alloxan-untreated acatalasemic mice was as low as that in the normal mice. However, the incidence of acatalasemiamice treated with alloxan was higher than that in normal mice, and the number of pancreatic beta-cells in the acatalasemic mice was less than that in normal mice. CONCLUSION: These results indicate that low catalase activity in the blood is associated with the diabetes mellitus caused by alloxan administration.
Authors: Shuiling Zhao; Anindya Ghosh; Chao-Sheng Lo; Isabelle Chenier; James W Scholey; Janos G Filep; Julie R Ingelfinger; Shao-Ling Zhang; John S D Chan Journal: Endocrinology Date: 2018-02-01 Impact factor: 4.736
Authors: Emmanuel A Irondi; Jacob K Akintunde; Samson O Agboola; Aline A Boligon; Margareth L Athayde Journal: Food Sci Nutr Date: 2016-05-25 Impact factor: 2.863
Authors: Parvin Zarei; Mohammad Reza Rezvanfar; Hadi Ansarihadipour; Mostafa Delavar; Mahdi Abdollahi; Ali Khosrowbeygi Journal: J Res Med Sci Date: 2018-10-26 Impact factor: 1.852