Effect of cytogenin, a novel immunomodulator, on streptozotocin-induced diabetes in mice.

Abstract

The anti-diabetic effect of cytogenin was examined using streptozotocin-induced diabetes in mice. Cytogenin suppressed not only the increase of plasma glucose level but also the body weight reduction in diabetic mice. Histological examination of the pancreas taken from diabetic mice given cytogenin showed that cytogenin decreased the number of macrophages infiltrated into islet of pancreas. Further, cytogenin suppressed the nitric oxide generation by macrophages treated with lipopolysaccharide through decreasing of inducible nitric oxide synthase expression. Cytogenin suppressed interleukin-6 expression by macrophage treated with LPS, suggesting that the anti-diabetic activity of cytogenin might be partly attributed to the suppressive activity against nitric oxide generation.

• Authors: Hiroyuki Kumagai, Kuniko Wakazono, Naoki Agata, Kunio Isshiki, Masaaki Ishizuka, Daishiro Ikeda
• Journal: The Journal of antibiotics (J Antibiot (Tokyo)) Vol. 58 Issue 3 Pg. 202-5 (Mar 2005) ISSN: 0021-8820 [Print] England
• PMID: 15895529 (Publication Type: Journal Article)

Chemical References

• Blood Glucose
• Coumarins
• Hypoglycemic Agents
• Immunologic Factors
• Interleukin-6
• Isocoumarins
• cytogenin
• Nitric Oxide

Topics

• Animals
• Blood Glucose (metabolism)
• Body Weight (drug effects)
• Coumarins (therapeutic use)
• Diabetes Mellitus, Experimental (drug therapy, pathology, physiopathology)
• Female
• Hypoglycemic Agents (therapeutic use)
• Immunologic Factors (therapeutic use)
• In Vitro Techniques
• Interleukin-6 (biosynthesis)
• Islets of Langerhans (drug effects, pathology)
• Isocoumarins
• Macrophages (drug effects, pathology, physiology)
• Mice
• Nitric Oxide (biosynthesis)