CAJ | 학술논문

目的　探讨组织胺及其1型受体(H1R)阻断剂、2型受体(H2R)阻断剂对贮脂细胞收缩的影响。方法　采用肝脏离体胶原酶灌注消化及密度梯度离心的方法来分离培养贮脂细胞；用二甲基多聚硅烷烧制聚硅酮膜；传代后的贮脂细胞在聚硅酮膜上培养3 d后，随机分为5组：A组(对照组)；B组(组织胺1×10-7 mol/L组)；C组(组织胺1×10-6 mol/L组)；D组(H1R阻断剂+组织胺1×10-6 mol/L组)和E组(H2R阻断剂+组织胺1×10-6 mol/L组)。各组于加药前及加药后20 min摄相，在相片上分析同一视野细胞周围的聚硅酮膜皱纹变化，皱纹增多表明细胞收缩。结果　B组、C组的贮脂细胞收缩率分别为21.0%、34.2%，远高于A组的3.8%，并呈量效依赖关系（P＜0.001）；D组的贮脂细胞收缩率为17.7%，低于C组（P＜0.05）；E组的贮脂细胞收缩率为26.3%，与C组相比，差异无显著性（P＞0.05）。结论　组织胺通过H1R的介导促进贮脂细胞的收缩，可能在门静脉高压症的发生发展中起了一定的作用。
목적　탐토조직알급기1형수체(H1R)조단제、2형수체(H2R)조단제대저지세포수축적영향。방법　채용간장리체효원매관주소화급밀도제도리심적방법래분리배양저지세포；용이갑기다취규완소제취규동막；전대후적저지세포재취규동막상배양3 d후，수궤분위5조：A조(대조조)；B조(조직알1×10-7 mol/L조)；C조(조직알1×10-6 mol/L조)；D조(H1R조단제+조직알1×10-6 mol/L조)화E조(H2R조단제+조직알1×10-6 mol/L조)。각조우가약전급가약후20 min섭상，재상편상분석동일시야세포주위적취규동막추문변화，추문증다표명세포수축。결과　B조、C조적저지세포수축솔분별위21.0%、34.2%，원고우A조적3.8%，병정량효의뢰관계（P＜0.001）；D조적저지세포수축솔위17.7%，저우C조（P＜0.05）；E조적저지세포수축솔위26.3%，여C조상비，차이무현저성（P＞0.05）。결론　조직알통과H1R적개도촉진저지세포적수축，가능재문정맥고압증적발생발전중기료일정적작용。
Objective　To investigate the effect of histamine and H1-receptor (H1R) antagonist, H2-receptor (H2R) antagonist on the contractility of rat fat-storing cells.　Methods　Fat-storing cells was isolated and purified from rat liver by collagenase IV perfusion and density gradient centrifugation with Nycodenz. Silicone-rubber-membrane was made of dimethylpolysiloxane by heating. Passaged fat-storing cells were cultured on silicone-rubber-membrane for 3 days, then divided randomly into 5 groups: control group (group A), histamine 1×10-7 mol/L-treated group (group B), histamine 1×10-6 mol/L-treated group (group C), histamine 1×10-6 mol/L- plus H1R antagonist-treated group (group D) and histamine 1×10-6mol/L- plus H2R antagonist-treated group (group E). The cells of all groups were photographed before and 20 min after the addition of agents. The change in the number of wrinkles of silicone-rubber-membrane around the cells from the same area was determined on photographs. An increased number of wrinkles indicated contractile responses.　Results　 The percentage of contracted fat-storing cells in group B and group C was 21.0 % and 34.2 % respectively, which were significantly higher than in the group A（3.8 %，P<0.001）in a dose-dependent manner. The percentage of contracted fat-storing cells in the group D (17.7 %) was lower than in the group C (P<0.05). There was no significant difference in percentage of contracted fat-storing cells between the group E (26.3 %) and group C (P>0.05). Conclusion　 Histamine could induce contraction of fat-storing cells through H1R, which might play a role in the pathogenesis of portal hypertension.