Abstract
This study investigated the impact of Shikimic Acid (SA) obtained from leaves of Artemisia absinthium on protein glycation in the retina of diabetic rats. The GC/MS analysis of A. absinthium showed that the most abundant bioactive compound was SA (C7H10O5) with a measured retention Index (RI) of 1960 compared to that of the reference sample (1712). Male albino rats were divided into two main groups, Group I (control) and Group II (diabetic); Group II was further divided into four subgroups: Group IIa (diabetic control), Group IIb (diabetic rats were given SA orally [50 mg/kg, body weight (bw)/day], Group IIc diabetic rats were given SA orally [100 mg/kg, bw/day], and Group IId (diabetic rats were given metformin orally [100 mg/kg, bw/day] as positive control). The data obtained suggested that SA reduced glucose and glycated hemoglobin levels. In addition, SA also decreased the formation of glucose-derived advanced glycation end products. Interestingly, SA showed interference with the release of inflammatory mediators in retina and possess antioxidant potential. In conclusion, SA protected the tissues from detrimental effects of hyperglycemia and enhanced antioxidant activity. SA could be a potential lead in the process of drug development in the future to prevent retinopathy in diabetic subjects.
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