Article ; Online: ViphyllinTM, a Standardized Black Pepper Extract Exerts Antihyperglycemic Effect and Improves Sciatic Nerve Conduction in High Fat Diet/Streptozotocin-Induced Diabetic Model Rats
Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy, Vol Volume 15, Pp 1819-
2022 Volume 1829
Abstract: Illuri Ramanaiah, Heggar Venkataramana Sudeep, Kodimule Shyamprasad Department of Preclinical Studies, R&D Center for Excellence, Vidya Herbs Pvt Ltd, Bangalore, Karnataka, 560 105, IndiaCorrespondence: Heggar Venkataramana Sudeep, Department of ... ...
Abstract | Illuri Ramanaiah, Heggar Venkataramana Sudeep, Kodimule Shyamprasad Department of Preclinical Studies, R&D Center for Excellence, Vidya Herbs Pvt Ltd, Bangalore, Karnataka, 560 105, IndiaCorrespondence: Heggar Venkataramana Sudeep, Department of Preclinical Studies, R&D Center for Excellence, Vidya Herbs Pvt Ltd, Bangalore, Karnataka, 560 105, India, Tel +91 80-42094158, Email research@vidyaherbs.comPurpose: Research on plant-based formulations has drawn considerable attention in the management of diabetic neuropathy (DN) for having lesser side effects than the synthetic counterparts. Here, we have investigated for the first time the therapeutic effects of a standardized Piper nigrum L., (black pepper) seed extract, ViphyllinTM in mitigating hyperglycemia and neuropathic pain of type 2 diabetes model rats.Methods: Type 2 diabetes was induced in male Wistar rats using high fat diet and a single dose of streptozotocin (60 mg/kg i.p.). The diabetic rats were orally administered with Viphyllin containing not less than 30% β-caryophyllene (BCP), at 25 mg, 50 mg and 100 mg/kg/day doses for 6 weeks. Changes in body weight, fasting blood glucose (FBG), glucose tolerance, and blood biochemical parameters were measured. The nociceptive response to thermal stimulus (tail flick test) and sciatic nerve conduction velocity (NCV) were recorded at the end of study.Results: Viphyllin treatment markedly improved the body weight and glucose tolerance in diabetic rats. Also, the extract could significantly reduce the diabetes-induced elevation in FBG, liver and kidney indices. Further, Viphyllin dose-dependently increased the nociception latency in tail flick test compared to untreated diabetic rats (p< 0.05). Viphyllin at 100 mg/kg significantly increased the NCV (44.12± 1.91*** m/s vs diabetic control 25.80± 1.88 m/s). The antioxidant enzyme activities in sciatic nerve tissue were considerably increased in Viphyllin-treated groups compared to diabetic control. A 6-week treatment with Viphyllin markedly reversed the ... |
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Keywords | diabetic neuropathy ; thermal hyperalgesia ; peripheral nerves ; black pepper ; Specialties of internal medicine ; RC581-951 |
Subject code | 610 |
Language | English |
Publishing date | 2022-06-01T00:00:00Z |
Publisher | Dove Medical Press |
Document type | Article ; Online |
Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
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