Abstract Title:

Aegle marmelos Correa leaf extract prevents secondary complications in streptozotocin-induced diabetic rats and demonstration of limonene as a potent antiglycating agent.

Abstract Source:

J Pharm Pharmacol. 2013 Jun ;65(6):884-94. Epub 2013 Feb 26. PMID: 23647682

Abstract Author(s):

Shrimant N Panaskar, Madhav M Joglekar, Shreehari S Taklikar, Vivek S Haldavnekar, Akalpita U Arvindekar

Article Affiliation:

Shrimant N Panaskar


OBJECTIVES: To study the antiglycating, antidiabetic and antioxidant properties of Aegle marmelos Correa leaf extract and identify the bioactive constituent.

METHODS: The effect of the chloroform extract of Aegle marmelos Correa was studied in streptozotocin-induced diabetic rats through evaluation of biochemical parameters. Antiglycation activity was assessed in vitro through measurement of total and specific advanced glycation end products, protein carbonyl formation and collagen solubility tests. Antioxidant potential was evaluated using the ferric-reducing antioxidant power assay and 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) assays. Identification of the bioactive component was attempted through silica gel column chromatography and GC-MS analysis.

RESULTS: In-vivo studies for 60 days revealed that the extract prevented kidney damage and other secondary complications. The chloroform extract at 16 μg could inhibit protein glycation by 44.33% and pentosidine formation by 59.31%, and could effectively inhibit protein carbonyl formation. It could scavenge DPPH radicals up to 85.26% (IC50: 26 μg). Bio-guided fractionation revealed limonene as the bioactive component, which could account for the antiglycating activity shown by the chloroform extract.

CONCLUSION: The chloroform extract of Aegle marmelos demonstrated antidiabetic antiglycating and antioxidant activity, effectively preventing kidney damage and establishment of cataracts. Limonene is reported for the first time as possessing potent antiglycating activity and is non-toxic at the concentration used.

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Sayer Ji
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