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. 2023 Nov-Dec;14(6):100804.
doi: 10.1016/j.jaim.2023.100804. Epub 2023 Oct 15.

Acute and sub-chronic toxicity of Liberin, an anti-diabetic polyherbal formulation in rats

Renuka Suvarna  1 , Varashree Bolar Suryakanth  2 , Pugazhandhi Bakthavatchalam  3 , Guruprasad Kalthur  4 , Deepak Nayak M  5 , M Mukhyaprana Prabhu  6 , Basavaraj S Hadapad  1 , Revathi P Shenoy  7
Affiliations

Acute and sub-chronic toxicity of Liberin, an anti-diabetic polyherbal formulation in rats

Renuka Suvarna et al. J Ayurveda Integr Med. 2023 Nov-Dec.

Abstract

Background: The polyherbal formulation (PHF) liberin, is known to exert anti-hyperglycemic effects in type 2 diabetes mellitus. Hence, it is important to study the safety profile of PHF in the current study through acute and chronic toxicity evaluation.

Objectives: This research aims to assess the acute and sub-chronic toxicity of PHF in rats.

Materials and methods: PHF was administered once orally (1000 mg/kg body weight), and the rats (male and female) were monitored for toxicity signs for a 14-day period. For a 28-day chronic toxicity study, rats were daily administered with PHF dose of 500 mg/kg and 1000 mg/kg body weight. Rats were followed up for mortality, weight changes, and other morbidities. Further haematological, biochemical, and histopathological changes were assessed.

Results: No death related to treatment or toxicity signs were recorded in the acute single-dose administration group. The results showed that the PHF was tolerated well up to a dose of 1000 mg/kg body weight. Even at the high dose of 1000 mg/kg body weight, sub-chronic tests did not show any significant difference between the dosed and normal groups. No significant changes were seen in the histopathological analysis of the liver, spleen, and kidney as well as haematological and biochemical parameters in acute, sub-chronic and satellite groups following the administration of PHF.

Conclusion: The results confirmed that there was no adverse effect of this PHF at the maximum dose of 1000 mg/kg body weight in Wistar rats. Further, no adverse delayed effects related to PHF were observed in the satellite group. Therefore, this PHF appears safe for therapeutic purposes in the Ayurvedic medicinal system.

Keywords: Anti-diabetic drug; Liberin; Polyherbal formulation; Toxicity.

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Conflict of interest statement

Declaration of competing interest The authors declare that there is no conflict of interest in this study.

Figures

Fig. 1
Fig. 1
Histopathological microphotograph of liver of control (A), 500 mg/kg body weight liberin treated sub-chronic group for 28 days (B), 1000 mg/kg body weight liberin dosed sub-chronic group for 28 days (C), and 1000 mg/kg body weight liberin treated satellite group for 28 days and 14 days follow-up (D) showing normal morphology of hepatic cells and veins. Note: CV – Central Vein, HS – Hepatic Sinusoids, PT – Portal Triad.
Fig. 2
Fig. 2
Histopathology examination of a section of spleen of control (A), 500 mg/kg body weight liberin treated sub-chronic group for 28 days (B), 1000 mg/kg body weight liberin dosed sub-chronic group for 28 days (C), and 1000 mg/kg body weight treated satellite group for 28 days and 14 days follow-up (D) showing normal histology. Note: BC – Billroth Cord, CA – Central Artery, RP – Red Pulp, WP – White Pulp.
Fig. 3
Fig. 3
Photomicrograph of a section of kidney of control (A), 500 mg/kg body weight liberin treated sub-chronic group for 28 days (B), 1000 mg/kg body weight liberin dosed sub-chronic group for 28 days (C), and 1000 mg/kg body weight treated satellite group for 28 days and 14 days follow-up (D) showing normal histology. Note: G – glomerulus, DCT – Distal Convoluted Tubule, PCT – Proximal Convoluted Tubule, JGA – Juxta Glomerular Apparatus, BC – Bowman’s Capsule, CD – Collecting duct.
See this image and copyright information in PMC

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