التفاصيل البيبلوغرافية
| العنوان: |
Influence of androgenic blockade with flutamide on pain behaviour and expression of the genes that encode the NaV1.7 and NaV1.8 voltage-dependent sodium channels in a rat model of postoperative pain |
| المؤلفون: |
José Osvaldo Barbosa Neto, João Batista Santos Garcia, Maria do Socorro de Souza Cartágenes, Andressa Godoy Amaral, Luiz Fernando Onuchic, Hazem Adel Ashmawi |
| المصدر: |
Journal of Translational Medicine, Vol 17, Iss 1, Pp 1-7 (2019) |
| بيانات النشر: |
BMC, 2019. |
| سنة النشر: |
2019 |
| المجموعة: |
LCC:Medicine |
| مصطلحات موضوعية: |
Postoperative pain, Gender influence, Testosterone, NAV1.7 and NAV1.8 voltage-gated sodium channels, Scn9a e Scn10a gene expression, Medicine |
| الوصف: |
Abstract Background Experimental studies suggest that testosterone reduces the nociceptive response after inflammatory and neuropathic stimuli, however the underlying mechanisms have not been fully elucidated. The aims of this study were to evaluate the effect of peripheral blockade of testosterone on pain behaviour and on expression levels of the genes that encode the NaV1.7 and NaV1.8 channels, in dorsal root ganglia in an acute postoperative pain model, as well as the influence of androgen blockade on the expression of these genes. Methods Postoperative pain was induced by a plantar incision and the study group received flutamide to block testosterone receptor. The animals were submitted to behavioural evaluation preoperatively, 2 h after incision, and on the 1st, 2nd, 3rd and 7th postoperative days. Von Frey test was used to evaluate paw withdrawal threshold after mechanical stimuli and the guarding pain test to assess spontaneous pain. The expression of the genes encoding the sodium channels at the dorsal root ganglia was determined by real time quantitative polymerase chain reaction. Results Animals treated with flutamide presented lower paw withdrawal threshold at the 1st, 2nd, 3rd, and 7th postoperative days. The guarding pain test showed significant decrease in the flutamide group at 2 h and on the 3rd and 7th postoperative days. No difference was detected between the study and control groups for the gene expression. Conclusions Our data suggest an antinociceptive effect of androgens following plantar incision. The expression of genes that encode voltage-gated sodium channels was not influenced by androgen blockade. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
1479-5876 |
| Relation: |
http://link.springer.com/article/10.1186/s12967-019-2031-z; https://doaj.org/toc/1479-5876 |
| DOI: |
10.1186/s12967-019-2031-z |
| URL الوصول: |
https://doaj.org/article/96e79d331e494b3f8381dd36a226e5be |
| رقم الانضمام: |
edsdoj.96e79d331e494b3f8381dd36a226e5be |
| قاعدة البيانات: |
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