ArticleActa orthopaedica et traumatologica turcica2021
Effects of tamoxifen therapy on sciatic nerve crush injury: An experimental study in rats.
Article in Acta orthopaedica et traumatologica turcica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 5 citations in OpenAlex.
- Exogenous NT-3 Promotes Phenotype Switch of Resident Macrophages and Improves Sciatic Nerve Injury through AMPK/NF-κB Signaling Pathway.Neurochemical research · 2024Article
- Clinical, electrophysiological, and histomorphological effects of local coenzyme Q10 and vitamin E use in a rat model of peripheral nerve injury.Acta orthopaedica et traumatologica turcica · 2023Article
- Low-Stiffness Hydrogels Promote Peripheral Nerve Regeneration Through the Rapid Release of Exosomes.Frontiers in bioengineering and biotechnology · 2022Article
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6 authors at 1 institution in 1 country.
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Abstract
objectiveThis study aimed to determine the effects of tamoxifen on sciatic nerve crush injury in a rat model using histopathological, histomorphometric, and immunohistochemical approaches.
methodsIn this study, 24 male Sprague-Dawley rats aged of 5 to 7 weeks and weighing between 300 g and 400 g were used. The rats were randomly divided into 3 groups: control (group C), sciatic nerve injury (group SNI), and sciatic nerve injury with tamoxifen (group SNT). The sciatic nerve crush injury model was performed using the De Koning's crush force method. In group C, only a skin incision was made and then the skin was sutured. In group SNI, the injury model was performed but no treatment was applied. In group SNT, the injury model was executed, and then 40 mg/kg/day tamoxifen was given for 4 weeks by intraperitoneal methods. At the end of 4 weeks, all animals were killed using high doses of an anesthetic. Approximately, 2-cm sciatic nerve samples were obtained for histopathological, histomorphometric, and immunohistochemical analyses using the old skin incision.
resultsIn the histopathological examination, vascular congestion and density of vacuolization were significantly lower in group SNT than in group SNI (p<0.05). In the histomorphometric examination, the mean sciatic nerve diameter was 306±62 µm in group C, 510±42 µm in group SNI, and 204±23 µm in group SNT. A significant difference was observed in the sciatic nerve diameter measurements among the 3 groups (p<0.05). In pairwise comparisons, the mean sciatic nerve diameter was significantly lower in group SNT than in group SNI (p=0.00002). Sciatic nerve diameter measurements of both groups were found to be significantly higher than group C (p<0.05). The mean epineurium thickness was 17±0.8 µm in group C, 32±2.5 µm in group SNI, and 17±0.8 µm in group SNT. A significant difference was observed in the epineurium thickness measurements among the 3 groups (p<0.05). In pairwise comparisons, the epineurium thickness was significantly higher in group SNI than in groups SNT and C (p<0.05). In the immunohistochemical analysis, S100 immunoreactivity was found significantly higher in group SNI than in the other 2 groups (p<0.05).
conclusionThe histomorphometric, histopathological, and immunohistochemical data obtained from this study have shown that tamoxifen has a beneficial effect on sciatic nerve crush injury in the experimental rat model.
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