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Effect of prostaglandins against alloxan-induced diabetes mellitus
1UND Life Sciences, Shaker Heights, OH 44120, USA.
Abstract:
Previously, we observed that alloxan-induced in vitro cytotoxicity and apoptosis in an insulin secreting rat insulinoma, RIN, cells was prevented by prior exposure to prostaglandin (PG) E(1), PGE(2), PGI(2), PGF(1)(alpha), and PGF(3)(alpha) (P<0.05 compared to alloxan), whereas thromboxane B(2) (TXB(2)) and 6-keto-PGF(1)(alpha) were ineffective. In an extension of these studies, we now report that prior intraperitoneal administration of PGE(1), PGE(2), PGF(1)(alpha), and PGF(3)(alpha) prevented alloxan-induced diabetes mellitus in male Wistar rats, whereas PGI(2), TXB(2), and 6-keto PGF(1)(alpha) were not that effective. PGE(1), PGE(2), PGF(1)(alpha), and PGF(3)(alpha) not only attenuated chemical-induced diabetes mellitus but also restored the antioxidant status to normal range in red blood cells and pancreas. These results suggest that PGE(1), PGE(2), PGF(1)(alpha), and PGF(3)(alpha) can abrogate chemically induced diabetes mellitus in experimental animals and attenuate the oxidant stress that occurs in diabetes mellitus.
Insights
Certain prostaglandins (PGs) like PGE1, PGE2, PGF1α, and PGF3α protect against alloxan-induced diabetes in rats. These PGs also restore antioxidant levels, suggesting a therapeutic role in managing chemically induced diabetes and oxidative stress.
Area of Science:
- Biochemistry
- Endocrinology
- Pharmacology
Background:
- Alloxan induces cytotoxicity and apoptosis in rat insulinoma cells.
- Prostaglandins (PGs) are lipid compounds with diverse physiological roles.
- Oxidative stress is implicated in the pathogenesis of diabetes mellitus.
Purpose of the Study:
- To investigate the in vivo protective effects of various prostaglandins against alloxan-induced diabetes mellitus in rats.
- To determine if prostaglandins can restore antioxidant status in diabetic rats.
Main Methods:
- Male Wistar rats were administered prostaglandins intraperitoneally prior to alloxan induction.
- Diabetes mellitus was chemically induced using alloxan.
- Antioxidant status was assessed in red blood cells and pancreas.
Main Results:
- Prostaglandin E1 (PGE1), PGE2, PGF1α, and PGF3α significantly prevented alloxan-induced diabetes.
- Prostaglandin I2 (PGI2), thromboxane B2 (TXB2), and 6-keto-PGF1α were less effective.
- PGE1, PGE2, PGF1α, and PGF3α restored antioxidant levels in red blood cells and pancreas.
Conclusions:
- PGE1, PGE2, PGF1α, and PGF3α can abrogate chemically induced diabetes mellitus in experimental models.
- These prostaglandins attenuate the oxidative stress associated with diabetes mellitus.
- The findings suggest a potential therapeutic application of these PGs in managing diabetes.
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