Effects of Portulaca oleracea L

Author(s): El-Sayed M


ETHNPHARMACOLOGICAL RELEVANCE: To investigate antidiabetic activity of purslane seeds on type-2 diabetic subjects and to provide scientific basis for the clinical use of Portulaca oleracea (PO).

Materials and methods: A thirty subject with type-2 diabetes divided into two groups, to receive 5 g of PO seeds twice daily while in the second group, their participants receive 1,500 mg of metformin/day. All participants were requested to report the effects of treatments on diabetic manifestations, their weights, body mass index (BMI), adverse effects, fasting and post-prandial blood glucose during treatment schedule. Blood samples from participants before and after treatment were taken for serum separation, which are used for measurement of serum lipids, liver enzymes, total and direct bilirubin, albumin, and insulin.

Results: It showed a significant decrease in serum levels of triglycerides (TGs), total cholesterol (T(C)), low density lipoprotein cholesterol (LDL(C)), liver alanine-, aspartate- and gamma glutamyl transaminase (ALT, AST, and GGT), total and direct bilirubin, fasting and post-prandial blood glucose, insulin, body weight and BMI while a significant increase in high density lipoprotein cholesterol (HDL(C)) and albumin but non-significant change of alkaline phosphatase (ALP) in PO seeds treated subjects. Metformin (M) group has the same results of PO group except in high density lipoprotein cholesterol (HDL(C)), LDL(C), and ALP levels had a different pattern.

Conclusions: PO seeds could be effective and safe as adjuvant therapy for Type-2 diabetic subjects. These results demonstrated that PO seeds possessed notable hypoglycaemic, hypolipidaemic and insulin resistance reducer effects; possibly due to its contents of polyunsaturated fatty acids, flavonoids, and polysaccharides.

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