Effect of protein kinase C inhibitor on the level of phosphralated extracellular regulated protein kinases in the spinal trigeminal nucleus of migraine model rats
10.3760/cma.j.issn.1674-6554.2014.12.005
- VernacularTitle:蛋白激酶C抑制剂对偏头痛大鼠三叉神经脊束核细胞外调节蛋白激酶磷酸化的影响
- Author:
Jiajun ZHANG
;
Mingfeng YANG
;
Baoliang SUN
;
Jiguo ZHANG
;
Yanbo ZHANG
- Publication Type:Journal Article
- Keywords:
Migraine;
ERK1/2;
Central sensitization;
Spinal trigeminal nucleus;
PKC
- From:
Chinese Journal of Behavioral Medicine and Brain Science
2014;23(12):1072-1074
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the effect of protein kinase C inhibitor on the level of phosphralated extracellular regulated protein kinases in the spinal trigeminal nucleus of migraine model rats.Methods Healthy adult male SD rats were randomly divided into four groups:normal group (group C),sham operation group (group C),migraine model group(group M),and H-7group(H-7group),with 18 rats in each group.Dural blood flow and the extracellular discharge frequency in the spinal trigeminal nucleus was recorded.ERK1/2 phosphorylation was tested.Results (1) Dural blood flow:compared with group C((3.8± 1.0)％),the dural blood flow in M group ((78.0±4.2) ％)increased obviously(P＜0.01) ; compared with M group((78.0±4.2)％),the dural blood flow in H-7 group((-24.8±4.9) ％) decreased obviously(P＜0.01).(2) The percentage of extracellular discharge frequency change:two hours after treatment,the percentage of extracellula discharge frequency change in group M ((325.9 ±47.3)％)was higher than that in group C((107.3±16.4)％).The percentage of discharge frequency change in group H-7((136.0±26.5)％) was lower than that in group M((325.9±47.3)％).There was no significant difference in the percentage of discharge frequency change between group H-7((136.0±26.5) ％) and group C((107.3 ± 16.4)％).(2) ERK1/2 phosphorylation:the ERK1/2 phosphorylation in group M was higher than that in group C.The ERK1/2 phosphorylation in group H-7 was lower than than that in group C and group M.Conclusion ERK1/2 is a downstream PKC signal path and PKC may have indirect activation of ERK1/2.
