Fullerene C60 nanoparticle attenuates pain and tumor necrosis factor-α protein expression in the hippocampus following diabetic neuropathy in rats
Diabetic neuropathy is a common complication of diabetes mellitus. It is associated with nerve damage due to oxidative stress and high levels of pro-inflammatory mediators. In the present study, we examined the anti-nociceptive effects of Fullerene nanoparticle, as a potent anti-oxidant, during diabetic neuropathy.
Diabetes mellitus induced through injection of streptozotocin (STZ) (40 mg/kg). Four groups were used in the study as follows: the control, control+fullerene, diabetes, and diabetes +fullerene groups. All four groups received sesame oil. Treatment rats received fullerene C60 (1mg/kg/day) for 9 weeks by intra-gastric gavage. Then, cold allodynia, histology, and tumor necrosis factor-α (TNF- α) protein expression of the hippocampus were measured 9 weeks after injection of STZ.
Our data revealed that STZ induces cold allodynia in both hind paws and increases the TNF- α protein expression in the hippocampus. Furthermore, STZ induces neural degeneration in the hippocampus. Additionally, fullerene C60 significantly attenuated cold allodynia and TNF- α protein expression. Also, fullerene C60 has neuro-protective effects on hippocampal neurons. However, fullerene C60 did not significantly reduce serum glucose levels in diabetic animals.
Our data suggest that fullerene C60 likely suppressed pain, and neural loss by inhibitory effects on TNF- α protein expression in the hippocampus during diabetes.
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