Effect of all-trans-retinoic acid on tubulointerstitial macrophage infiltration in rats with renal tubulointerstitial fibrosis
- VernacularTitle:全反式维甲酸对肾间质纤维化大鼠肾间质巨噬细胞浸润的影响
- Author:
Dan ZHU
;
Dengfeng GAO
;
Ning NING
;
Baosong GUI
;
Ganglian YAO
;
Xiaohong WEI
;
Lin ZHOU
;
Xuefen AN
- Publication Type:Journal Article
- Keywords:
interstitial;
fibrosis;
macrophage;
Col Ⅲ;
alltrans-retinoic acid
- From:Journal of Xi'an Jiaotong University(Medical Sciences)
1982;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of at-RA in macrophage accumulation in tubulointerstitium of rats with renal tubulointerstitial fibrosis.Methods Unilateral ureteral obstructive(UUO) rat animal models were used for the study.40 SD rats were randomly divided into 5 groups: sham group,UUO group,benazepril group,low-dose at-RA groups and high-dose at-RA groups.The rats were under intragastric administration by benazepril(10mg/(kg?d)) in benazepril group,and by(at-RA)(10mg/(kg?d)) in low-dose at-RA group and 20mg/(kg?d) in high-dose at-RA group and by sodium chloride in tales doses in sham group and UUO group from the day before the operation to 14 day after operation.Immunohistochemistry staining of CD68 and Col Ⅲ was used to define the macrophage accumulation and expression of interstitial Col Ⅲ.The degree of tubulointerstitial damage was scored by HE and Masson staining.Results Tubulointerstitial macrophage infiltration were all significantly reduced by(at-RA) or benazepril treatment.They also improved the histological changes of UUO rats and inhibited interstitial colⅢ deposition.Conclusion Reduction of interstitial macrophage infiltration may be an important event by which(at-RA) or benazepril prevents renal injury caused by UUO.
