Diabetes mellitus (DM) is a metabolic disorder leading to high level of morbidity and mortality in human population and it has been identified as the leading cause of death from non-infectious diseases. The use of dexamethasone has been on the increase due to wide array of therapeutic effects it has and the use has mostly been without prescription, since it is a non- prescription drug. Therefore, the potential of dexamethasone to induce DM was studied. Some of the drugs currently used in the treatment of diabetes have their own problematic effects and also expensive, Annona muricata methanolic bark extract(AMMBE) was used in the treatment of dexamethasone-induced diabetes in rats. The research was carried out on albino rats in Federal College of Animal Health and Production Technology, Ibadan and lasted for twenty-eight (28) days. The rats were allotted into four groups (A, B, C and D). Group B, C and D were induced with glucocorticoid (Dexamethasone) (2mgkg-1) daily for seven (7) days intraperitoneally, while group A which was the positive control were given distilled water throughout without induction with glucocorticoid. Group B (the negative control) was induced with glucocorticoid with noAMMBE administration. Group C, was induced and treated with AMMBE at 400 mgkg-1for 14 days. While Group D, was induced with glucocorticoid and were treated with the standard drug (glibenclamide) at 2.5mgkg-1body weight of the rats daily for 14 days. Organ samples of liver, kidney and pancreas were collected for histopathological lesions evaluation. The result showed that dexamethasone induced diabetes after seven (7) days of intraperitoneal administration of 2 mgkg-1 body weights with the glucometer readings in most of the albino rats up to and above 129 mgdL-1. The average blood sugar levels in induced groups (B, C and D) were 132.0±4.05, 129.0±1.41 and130.0±2.93, respectively which were not statistically significant (P>0.05). After administration of AMMBE, the average blood sugar level for group B (126.0±1.41) was significantly different (P<0.05) from C (91.0±1.72) and D (87.0±2.97). Clinical signs of alopecia, dehydration, writhing, paw-licking were observed. There were massive losses of pancreatic cell mass grossly afterinduction with dexamethasone. Histopathological lesions observed ranges from no visible lesion in the control and glibenclamide treated groups to accentuation of hepatocytes in the AMMBE treated rats, and marked vacuolar degeneration of hepatocytes in periportal areas to centrilobular area with Kidney degeneration and multifocal coagulation necrosis of tubular epithelium in group induced with dexamethasone but untreated (group B)Diabetogenic potential of dexamethasone and effect Annona muricata methanolic bark extract degeneration, multifoci coagulation and necrosis. The blood sugar levels post exposure to AMMBE and Glibenclamide showed reduction in the sugar levels. It could be concluded that dexamethasone has the potential of inducing diabetes when its use is prolonged and AMMBE has antidiabetic effect which could be fully explored.
Annona muricata is employed in the treatments of variety of diseases ranging from arthritic pains, investigations have substantiated its use as hypoglycemic, anticancer and antidiabetic agent [6].Despite its medicinal uses, the plant has a very important compound called Annonacin which B ackground: Annona muricata has been widely used by majority of people in the treatment of diabetes, pain, fever, cancer and many others diseases. Despite these medicinal values of this plant, it is important to study its effect on semen factors that determines reproductive health. Materials and method:Sixteen male rats weighing 150-200g were given Annona muricata methanolic bark extract (AMMBE) for fourteen days at the dose rate of 0 mg kg -1 , 200 mgkg -1 , 400 mgkg -1 and 800 mgkg -1 representing groups A, B, C and D respectively. The sperm cells were analyzed to determine the sperm counts, morphological appearances and survivability. Testes were also fixed in formalin for histopathology. The results obtained were analyzed using standard statistical package. Results:The results showed that the sperm liveability of rats treated with Annona muricata methanolic bark extract (AMMBE) were statistically significantly lower in groups B, C and D having mean values of 78.50±1.62, 86.50±3.11 and 68.00±1.96 respectively while the control group had 91.00±2.86, sperm motility was found to be highest in control group with 93.50±3.22 while other groups (B, C and D) had 82.25±2.20, 87.50±1.96 and 71.25±2.34 respectively. This finding showed strong correlation between the sperm motility and live-death ratio. In addition, there was reduction in the sperm concentration in a dose dependent manner, while the testicular histology revealed lesions that indicate potential for structural damages.Conclusion: It was concluded that due to the reductions in sperm motility, sperm concentration and live-death ratio, Annona muricata prolonged use may be detrimental.
Background: Diabetes mellitus has been identified as the leading cause of death from non-infectious diseases. The use of dexamethasone is on the increase due to wide array of its therapeutic effects. Therefore, the potential of dexamethasone to induce DM and ability of Annona muricata methanolic bark extract (AMMBE) to treat DM were studied. Methods: The research was carried in Federal College of Animal Health and Production Technology, Ibadan and lasted for twenty eight (28) days. Rats were allotted into four groups. Group B, C and D were induced with Dexamethasone (2mgkg-1) daily for 7 days i.p, while A was positive control group. B was induced without AMMBE administered, C was induced and treated with AMMBE at 400mgkg-1 and D induced and treated with glibenclamide (2.5mgkg-1b/w) for 14 days. Liver, kidney and pancreas were collected for histopathology. Results: Dexamethasone induced diabetes after 7 days. Average blood sugar in induced groups (B, C and D) were 132.0±4.05a,129.0±1.41aand130.0±2.93a respectively. After administration of AMMBE, average blood sugar for C and D were 91.0±1.72b and 87.0±2.97c respectively. Clinical signs of alopecia, dehydration, paw-licking etc was seen. Massive loss of pancreatic cell mass after induction was seen. Liver lesions ranges from no visible lesion, accentuation and marked vacuolar degeneration of hepatocytes in periportal areas. Kidney degeneration and multifocal coagulation necrosis of tubular epithelium were observed. Blood sugar post exposure to AMMBE and Glibenclamide were drastically reduced. Conclusions: It could be concluded that prolonged use of dexamethasone has potential of inducing diabetes and AMMBE has antidiabetic effect which could be fully explored. Disclosure T.A. Oladipo: None. Y.D. Adeoye: None. O.O. Oladipo: None. J.O. Olukunle: None.
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