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Low catalase activity in blood is associated with the diabetes caused by alloxan.

AbstractBACKGROUND:
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.
AuthorsKazunori Takemoto, Miho Tanaka, Hiroshi Iwata, Ryou Nishihara, Kohji Ishihara, Da-Hong Wang, Keiki Ogino, Koji Taniuchi, Noriyoshi Masuoka
JournalClinica chimica acta; international journal of clinical chemistry (Clin Chim Acta) Vol. 407 Issue 1-2 Pg. 43-6 (Sep 2009) ISSN: 1873-3492 [Electronic] Netherlands
PMID19563792 (Publication Type: Journal Article)
Chemical References
  • Blood Glucose
  • Insulin
  • Alloxan
  • Hydrogen Peroxide
  • Catalase
  • Glutathione
Topics
  • Acatalasia (blood, complications, enzymology, pathology)
  • Alloxan (metabolism, pharmacology)
  • Animals
  • Blood Glucose (metabolism)
  • Catalase (blood, metabolism)
  • Diabetes Complications (blood, enzymology, pathology)
  • Diabetes Mellitus (blood, chemically induced, enzymology, pathology)
  • Glucose Tolerance Test
  • Glutathione (metabolism)
  • Hemolysis
  • Hydrogen Peroxide (metabolism)
  • Insulin (blood)
  • Male
  • Mice
  • Microscopy
  • Oxidative Stress (drug effects)
  • Pancreas (drug effects, pathology)
  • Risk Factors

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