The effects of resveratrol on chronic constriction injury of sciatic nerve in rats

Saha

Journal of Pharmacy and Pharmacology

et al. 2018

Objectives The role of nuclear factor‐2 erythroid related factor‐2 (Nrf2) activator, berberine (BBR), has been established in rat model of streptozotocin induced diabetic neuropathy. Around 30–40% of cancer patients, on paclitaxel (PTX) chemotherapy develop peripheral neuropathy. The present study was contemplated with the aim of establishing the neuropathy preventive role of BBR, in paclitaxel induced peripheral neuropathy model in rats. Methods A total of 30 Wistar rats were divided into five groups as follows: Group I: dimethyl sulfoxide; Group II: PTX+ 0.9% NaCl; Group III: Amitriptyline (ATL) + PTX; Group IV: BBR (10 mg/kg) + PTX and Group V: BBR (20 mg/kg) + PTX. Animals were assessed for tail flick latency, tail cold allodynia latency, histopathological scores, oxidative stress parameters, and mRNA expression of the Nrf2 gene in the sciatic nerve. Key findings Berberine significantly increased the tail flick and tail cold allodynia latencies and significantly decreased the histopathological score. BBR reduced oxidative stress by significantly decreasing the lipid peroxidation, increasing the superoxide dismutase and reduced glutathione levels in the sciatic nerve. BBR also increased the mRNA expression of Nrf2 gene in rat sciatic nerve. Conclusions All of these results showed the neuropathy preventing role of BBR in PTX induced neuropathy pain model in rats.

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Study of nuclear factor-2 erythroid related factor-2 activator, berberine, in paclitaxel induced peripheral neuropathy pain model in rats

Saha

Journal of Pharmacy and Pharmacology

et al. 2018

“…Resveratrol is known to possess potent anti‐inflammatory, anti‐oxidative and anti‐tumourigenic properties in a variety of disease states . Moreover, resveratrol has been reported to exert neuroprotective effects against experimental models of stroke, traumatic brain injury, spinal cord injury, as well as peripheral nerve injury . Recent studies revealed that resveratrol may attenuate neuropathic pain associated with peripheral neuropathies through its anti‐inflammatory activity …”

Section: Introductionmentioning

confidence: 99%

“…11,12 Moreover, resveratrol has been reported to exert neuroprotective effects against experimental models of stroke, 13 traumatic brain injury, 14 spinal cord injury, 15 as well as peripheral nerve injury. 16,17 Recent studies revealed that resveratrol may attenuate neuropathic pain associated with peripheral neuropathies through its anti-inflammatory activity. 18,19 Currently, the question of whether resveratrol has a protective role against neuropathic pain and impaired peripheral nerve function associated with VPN has not yet been studied.…”

Section: Introductionmentioning

confidence: 99%

Resveratrol alleviates nuclear factor‐κB‐mediated neuroinflammation in vasculitic peripheral neuropathy induced by ischaemia–reperfusion via suppressing endoplasmic reticulum stress

Pan

Lin

Chuang

et al. 2019

Clin Exp Pharma Physio

Vasculitic peripheral neuropathy (VPN) arises from an inflammatory obstruction in the blood vessels supplying peripheral nerves and subsequent ischaemic insults, which exhibits the clinical features of neuropathic pain and impaired peripheral nerve function. VPN induced by ischaemia–reperfusion (IR) has been reported to involve nuclear factor‐κB (NF‐κB)‐mediated neuroinflammation. Recent studies have suggested that endoplasmic reticulum (ER) stress has been implicated in the development of peripheral neuropathies. Resveratrol possesses a potent anti‐inflammatory capacity. We hypothesized that resveratrol may exert a protective effect against VPN through modulating the interrelated ER stress and NF‐κB pathways. Male Sprague‐Dawley rats were allocated into five groups: sham, sham + resveratrol 40 mg/kg (R40), IR, IR + R20 and IR + R40. VPN was induced by occluding the right femoral artery for 4 hours followed by reperfusion. Our data have shown that VPN induced by IR led to hind paw mechanical allodynia, heat hyperalgaesia, and impaired motor nerve conduction velocity (MNCV). With resveratrol intervention, the behavioural parameters were improved in a dose‐dependent manner and the MNCV levels were increased as well. The molecular data revealed that VPN induced by IR significantly increased the expression of NF‐κB as well as the ER stress sensor proteins, protein kinase RNA‐like endoplasmic reticulum kinase, inositol‐requiring enzyme 1 and activating transcription factor 6 in the sciatic nerves. More importantly, resveratrol significantly attenuated the expression of NF‐κB and the ER stress sensor proteins after IR. In conclusion, resveratrol alleviates VPN induced by IR. The mechanisms may involve modulating NF‐κB‐mediated neuroinflammation via suppressing ER stress.

Deciphering resveratrol's role in modulating pathological pain: From molecular mechanisms to clinical relevance

Wang,

Jiang,

et al. 2023

Phytotherapy Research

Pathological pain, a multifaceted and debilitating ailment originating from injury or post‐injury inflammation of the somatosensory system, poses a global health challenge. Despite its ubiquity, reliable therapeutic strategies remain elusive. To solve this problem, resveratrol, a naturally occurring nonflavonoid polyphenol, has emerged as a potential beacon of hope owing to its anti‐inflammatory, antioxidant, and immunomodulatory capabilities. These properties potentially position resveratrol as an efficacious candidate for the management of pathological pain. This concise review summaries current experimental and clinical findings to underscore the therapeutic potential of resveratrol in pathological pain, casting light on the complex underlying pathophysiology. Our exploration suggests that resveratrol may exert its analgesic effect by the modulating pivotal signaling pathways, including PI3K/Akt/mTOR, TNFR1/NF‐κB, MAPKs, and Nrf2. Moreover, resveratrol appears to attenuate spinal microglia activation, regulate primary receptors in dorsal root sensory neurons, inhibit pertinent voltage‐gated ion channels, and curb the expression of inflammatory mediators and oxidative stress responses. The objective of this review is to encapsulate the pharmacological activity of resveratrol, including its probable signaling pathways, pharmacokinetics, and toxicology pertinent to the treatment of pathological pain. Hopefully, we aim to map out promising trajectories for the development of resveratrol as a potential analgesic.