陕西医学杂志
陝西醫學雜誌
협서의학잡지
SHAANXI MEDICAL JOURNAL
2015年
5期
524-526
,共3页
哮喘/药物疗法%哮喘/病理生理学%布地奈德/治疗应用%模型,动物%大鼠
哮喘/藥物療法%哮喘/病理生理學%佈地奈德/治療應用%模型,動物%大鼠
효천/약물요법%효천/병리생이학%포지내덕/치료응용%모형,동물%대서
Asthma/drug therapy%Asthma/physiopathology%Budesonide/therapeutic use%Models,an-imal%Rats
目的:探讨布地奈德对哮喘大鼠模型气道重塑及平滑肌中 Toll 样受体4表达的影响。方法:将30只 SPF 级 SD 大鼠随机分为支气管哮喘组(A 组)、健康对照组(B 组)、布地奈德治疗组(C 组)3组,每组10只 。 制备大鼠肺组织病理切片,HE 染色后观察各组气道结构改变情况,并测定支气管壁厚度(WAt/Pi)、支气管壁平滑肌厚度(WAm/Pi)及支气管平滑肌细胞核数(N /Pi),利用 Western‐Blot 方法检测气道平滑肌中 TLR4的蛋白表达。结果:光镜下可见 A 组支气管上皮细胞脱落、管壁炎症细胞浸润、杯状细胞增生、基底膜和平滑肌明显增厚,而 C 组上述改变较 A 组明显减轻。与 B 组比较,A 组支气管管壁厚度、平滑肌厚度及平滑肌细胞核数显著升高(P <0.01),与 A 组比较,C 组支气管管壁厚度、平滑肌厚度及支气管平滑肌细胞核数显著降低(P <0.01)。 A组的 TLR4的蛋白水平明显高于 B 组及 C 组(P<0.01)。 结论:吸入布地奈德可以防治气道重塑,可能通过抑制 TLR4的表达实现。
目的:探討佈地奈德對哮喘大鼠模型氣道重塑及平滑肌中 Toll 樣受體4錶達的影響。方法:將30隻 SPF 級 SD 大鼠隨機分為支氣管哮喘組(A 組)、健康對照組(B 組)、佈地奈德治療組(C 組)3組,每組10隻 。 製備大鼠肺組織病理切片,HE 染色後觀察各組氣道結構改變情況,併測定支氣管壁厚度(WAt/Pi)、支氣管壁平滑肌厚度(WAm/Pi)及支氣管平滑肌細胞覈數(N /Pi),利用 Western‐Blot 方法檢測氣道平滑肌中 TLR4的蛋白錶達。結果:光鏡下可見 A 組支氣管上皮細胞脫落、管壁炎癥細胞浸潤、杯狀細胞增生、基底膜和平滑肌明顯增厚,而 C 組上述改變較 A 組明顯減輕。與 B 組比較,A 組支氣管管壁厚度、平滑肌厚度及平滑肌細胞覈數顯著升高(P <0.01),與 A 組比較,C 組支氣管管壁厚度、平滑肌厚度及支氣管平滑肌細胞覈數顯著降低(P <0.01)。 A組的 TLR4的蛋白水平明顯高于 B 組及 C 組(P<0.01)。 結論:吸入佈地奈德可以防治氣道重塑,可能通過抑製 TLR4的錶達實現。
목적:탐토포지내덕대효천대서모형기도중소급평활기중 Toll 양수체4표체적영향。방법:장30지 SPF 급 SD 대서수궤분위지기관효천조(A 조)、건강대조조(B 조)、포지내덕치료조(C 조)3조,매조10지 。 제비대서폐조직병리절편,HE 염색후관찰각조기도결구개변정황,병측정지기관벽후도(WAt/Pi)、지기관벽평활기후도(WAm/Pi)급지기관평활기세포핵수(N /Pi),이용 Western‐Blot 방법검측기도평활기중 TLR4적단백표체。결과:광경하가견 A 조지기관상피세포탈락、관벽염증세포침윤、배상세포증생、기저막화평활기명현증후,이 C 조상술개변교 A 조명현감경。여 B 조비교,A 조지기관관벽후도、평활기후도급평활기세포핵수현저승고(P <0.01),여 A 조비교,C 조지기관관벽후도、평활기후도급지기관평활기세포핵수현저강저(P <0.01)。 A조적 TLR4적단백수평명현고우 B 조급 C 조(P<0.01)。 결론:흡입포지내덕가이방치기도중소,가능통과억제 TLR4적표체실현。
Objective :To explore the influence of budesonide on the airway remodeling and TLR4 of airway smooth muscle cell in Rat models of asthma .Methods :Thirty SD rats were randomly divided into 3 groups :model group(group A) ,normal control group(group B) ,budesonide treatment group(group C) ,with 10 rats in each group . The airway inflammation and the alteration of airway structure were detected by HE staining ,The airway wall thick‐ness(WAt/ Pi) ,the bronchial smooth muscle thickness(WAm/Pi)and numbers of smooth muscle cell (N /Pi )were measured by using image analysis system .the expression of TLR4 protein in cells were detected by Western blot .Re‐sults :Bronchial epithelial desquamation ,inflammatory cell infiltration ,hyperplasia of goblet cells and smooth muscle cells were seen in group A under optical microscope ,however compared with group A ,the manifestations were signif‐icantly decreased in group C .Compared with group B ,WAt/ Pi ,WAm/Pi and N/Pi were expressed at higher levels in lung tissues of group A(P < 0 .01) .Compared with group A ,WAt/ Pi ,WAm /Pi and N /Pi were expressed at lower levels in lung tissues of group C(P< 0 .01) .Compared with group B and C ,the expression of TLR4 at protein levels in group A was significantly highter .Conclusion :The airmay remodeling can be inhibited by budesonide proba‐bly through reducing the expression of TLR4 .