Morin Mitigates Chronic Constriction Injury (CCI)-Induced Peripheral Neuropathy by Inhibiting Oxidative Stress Induced PARP Over-Activation and Neuroinflammation

2016 ◽  
Vol 41 (8) ◽  
pp. 2029-2042 ◽  
Author(s):  
Prashanth Komirishetty ◽  
Aparna Areti ◽  
Ramakrishna Sistla ◽  
Ashutosh Kumar
Keyword(s):  
Oxidative Stress ◽  
Peripheral Neuropathy ◽  
Chronic Constriction Injury

PARP inhibition attenuates neuroinflammation and oxidative stress in chronic constriction injury induced peripheral neuropathy

Life Sciences ◽  
2016 ◽  
Vol 150 ◽  
pp. 50-60 ◽  
Author(s):  
Prashanth Komirishetty ◽  
Aparna Areti ◽  
Veera Ganesh Yerra ◽  
Ruby PK ◽  
Shyam S. Sharma ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Peripheral Neuropathy ◽  
Chronic Constriction Injury ◽  
Parp Inhibition ◽  
And Oxidative Stress

scholarly journals Alpha lipoic acid attenuated neuropathic pain induced by chronic constriction Injury of sciatic nerve in rats

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Prasad Neerati ◽  
Harika Prathapagiri
Keyword(s):  
Neuropathic Pain ◽  
Peripheral Neuropathy ◽  
Sciatic Nerve ◽  
Lipoic Acid ◽  
Normal Saline ◽  
Chronic Constriction Injury ◽  
Thermal Hyperalgesia ◽  
Alpha Lipoic Acid ◽  
Chronic Neuropathic Pain ◽  
Neuropathic Pain Syndrome

Abstract Background Chronic neuropathic pain syndrome is associated with impaired quality of life and is poorly manageable. Alpha lipoic acid (ALA) is a powerful antioxidant and showed its effectiveness on diabetic neuropathy and other acute peripheral nerve injuries but it was not evaluated in the chronic neuropathic pain, chronic constriction injury (CCI) in rat model by using duloxetine (DLX) as standard. Methodology The main objective of the study was to expedite ALA effect on chronic peripheral neuropathy induced by CCI of sciatic nerve in rats. In this study, male Wister rats were randomly divided into six groups (n = 8) including, normal saline, sham operated, surgery control, DLX 30mg/kg treated, ALA treated 25mg/kg, and ALA+DLX. The CCI of sciatic nerve was conducted on all animals except normal saline group and studied for 21 days (i.e. 14 days treatment period & 7 days treatment free period) by using different behavioral, biochemical and, histopathology studies. Results ALA showed minor but significant decrease of thermal hyperalgesia, cold allodynia, malondialdehyde (MDA), total protein, lipid peroxidation, and nitric oxide levels and significant increase of motor coordination, glutathione level and decreased axonal degeneration significantly. These effects sustained even during treatment free period. ALA enhanced the effect of DLX when given in combination by showing sustained effect. In conclusion, ALA acted as potent antioxidant may be this activity is responsible for the potent neuroprotective effect. Conclusion Hence, ALA attenuated the nueroinflammation mediated by chronic peripheral neuropathy. Further studies are warranted with ALA to develop as a clinically relevant therapeutic agent for the treatment of neuropathic pain.

scholarly journals Long Non-coding RNA XIST Attenuates Diabetic Peripheral Neuropathy by Inducing Autophagy Through MicroRNA-30d-5p/sirtuin1 Axis

2021 ◽  
Vol 8 ◽  
Author(s):  
Bei-Yan Liu ◽  
Lin Li ◽  
Li-Wei Bai ◽  
Chang-Shui Xu
Keyword(s):  
Oxidative Stress ◽  
Peripheral Neuropathy ◽  
Schwann Cells ◽  
Diabetic Peripheral Neuropathy ◽  
Beclin 1 ◽  
Diabetic Mice ◽  
Non Coding Rna ◽  
Non Coding Rnas ◽  
Long Non Coding Rna

Diabetic peripheral neuropathy (DPN) is a prevalent diabetes mellitus (Feldman et al., 2017) complication and the primary reason for amputation. Meanwhile, long non-coding RNAs (lncRNAs) are a type of regulatory non-coding RNAs (ncRNAs) that broadly participate in DPN development. However, the correlation of lncRNA X-inactive specific transcript (XIST) with DPN remains unclear. In this study, we were interested in the role of XIST in the modulation of DPN progression. Significantly, our data showed that the expression of XIST and sirtuin1 (SIRT1) was inhibited, and the expression of microRNA-30d-5p (miR-30d-5p) was enhanced in the trigeminal sensory neurons of the diabetic mice compared with the normal mice. The levels of LC3II and Beclin-1 were inhibited in the diabetic mice. The treatment of high glucose (HG) reduced the XIST expression in Schwann cells. The apoptosis of Schwann cells was enhanced in the HG-treated cells, but the overexpression of XIST could block the effect in the cells. Moreover, the levels of LC3II and Beclin-1 were reduced in the HG-treated Schwann cells, while the overexpression of XIST was able to reverse this effect. The HG treatment promoted the production of oxidative stress, while the XIST overexpression could attenuate this result in the Schwann cells. Mechanically, XIST was able to sponge miR-30d-5p and miR-30d-5p-targeted SIRT1 in the Schwann cells. MiR-30d-5p inhibited autophagy and promoted oxidative stress in the HG-treated Schwann cells, and SIRT1 presented a reversed effect. MiR-30d-5p mimic or SIRT1 depletion could reverse XIST overexpression-mediated apoptosis and autophagy of the Schwann cells. Thus, we concluded that XIST attenuated DPN by inducing autophagy through miR-30d-5p/SIRT1 axis. XIST and miR-30d-5p may be applied as the potential targets for DPN therapy.

scholarly journals Attenuation of oxidative stress, inflammation and apoptosis by ethanolic and aqueous extracts of Crocus sativus L. stigma after chronic constriction injury of rats

2014 ◽  
Vol 86 (4) ◽  
pp. 1821-1832 ◽  
Author(s):  
BAHAREH AMIN ◽  
KHALIL ABNOUS ◽  
VAHIDEH MOTAMEDSHARIATY ◽  
HOSSEIN HOSSEINZADEH
Keyword(s):  
Oxidative Stress ◽  
Neuropathic Pain ◽  
Proinflammatory Cytokines ◽  
Chronic Constriction Injury ◽  
Crocus Sativus ◽  
Lumbar Spinal Cord ◽  
Aqueous Extracts ◽  
Apoptotic Pathways ◽  
Factor Α ◽  
Lumbar Spinal

In our previous study, the ethanolic and aqueous extracts of Crocus sativus elicited antinociceptive effects in the chronic constriction injury (CCI) model of neuropathic pain. In this study, we explored anti-inflammatory, anti-oxidant and anti-apoptotic effects of such extracts in CCI animals. A total of 72 animals were divided as vehicle-treated CCI rats, sham group, CCI animals treated with the effective dose of aqueous and ethanolic extracts (200 mg/kg, i.p.). The lumbar spinal cord levels of proinflammatory cytokines including tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β) and interleukin 6 (IL-6), were evaluated at days 3 and 7 after CCI (n=3, for each group). The apoptotic protein changes were evaluated at days 3 and 7 by western blotting. Oxidative stress markers including malondialdehyde (MDA) and glutathione reduced (GSH), were measured on day 7 after CCI. Inflammatory cytokines levels increased in CCI animals on days 3 and 7, which were suppressed by both extracts. The ratio of Bax/ Bcl2 was elevated on day 3 but not on day 7, in CCI animals as compared to sham operated animals and decreased following treatment with both extracts at this time. Both extracts attenuated MDA and increased GSH levels in CCI animals. It may be concluded that saffron alleviates neuropathic pain, at least in part, through attenuation of proinflammatory cytokines, antioxidant activity and apoptotic pathways.

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