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Alloxan-induced diabetes, a common model for evaluating the glycemic-control potential of therapeutic compounds and
Osasenaga Macdonald Ighodaro1, Abiola Mohammed Adeosun1, Oluseyi Adeboye Akinloye2
1Department of Biochemistry, Faculty of Sciences, Lead City University, Ibadan, Nigeria; Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta (FUNAAB), Abeokuta, Nigeria.
Abstract:
Glycemic homeostasis refers to glucose balance or control within circulation in living organisms. It is normally and largely compromised in diabetes. The compromise when exacerbated, leads to several complications including retinopathy, nephropathy and neuropathy which are collectively known as diabetic complications and are the principal actors in co-morbidity and eventual mortality often associated with diabetes. The ability of therapeutic compounds including medicinal plants to restore glycemic balance or homeostasis in hyperglycemic condition is an index of their antidiabetic function and relevance. Alloxan and streptozotocin are the most popular diabetogenic agents used for assessing the antidiabetic or hypoglycemic capacity of test compounds. Notably, alloxan is far less expensive and more readily available than streptozotocin. On this ground, one will logically expect a preference for use of alloxan in experimental diabetes studies. Surprisingly, a sub meta-analysis of randomly selected studies conducted within the last one and half decade revealed otherwise. This observation necessitated the review of alloxan as a diabetogenic agent in animal studies.
Insights
This review examines alloxan
Area of Science:
- Biomedical Sciences
- Endocrinology
- Pharmacology
Background:
- Diabetes mellitus disrupts glycemic homeostasis, leading to severe complications.
- Diabetic complications contribute significantly to morbidity and mortality.
- Assessing antidiabetic compounds relies on their ability to restore glucose balance.
Purpose of the Study:
- To review the use of alloxan as a diabetogenic agent in animal studies.
- To investigate the surprising trend in alloxan versus streptozotocin usage.
- To understand the rationale behind agent selection in diabetes research.
Main Methods:
- Sub meta-analysis of randomly selected studies.
- Review of experimental diabetes research over the last 15 years.
- Comparative analysis of alloxan and streptozotocin in diabetogenic studies.
Main Results:
- Despite alloxan's lower cost and greater availability, streptozotocin appears to be more frequently used.
- An unexpected trend in agent preference was observed in recent literature.
- The review highlights a discrepancy between economic factors and common practice.
Conclusions:
- Further investigation into the reasons for preferring streptozotocin over alloxan is warranted.
- Understanding agent selection is crucial for the interpretation of antidiabetic research.
- The findings prompt a re-evaluation of alloxan's role in experimental diabetes models.
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