[Protection effect of Salvia miltiorrhiza on model of acute lung injury in rats].
OBJECTIVE
To investigate the effect of SM on aquaporin-1 (AQP1) expression in rats with acute lung injury (ALI), and study protection against ALI.


METHODS
48 SD rats were randomly divided into normal group, ALI 7-day group, ALI 8-hour group, SM prevention group, SM 7-day treatment group, and SM 8-hour treatment group. At 8 hours and 7 days after treatment, lung wet-to-dry weight ratio, lung pathology, electron microscope, AQP1 immunohistochemistry, and AQP1 Western blot were performed.


RESULTS
The model group rats all appeared ALI symptom. Compared with the 7-day ALI group, the degree of lung edema statement alleviated in SM 7-day treatment group. But the expression of AQP-1 was not significant between the two groups (P < 0.05). Compared with the 8-hour ALI group, the degree of lung edema statement alleviated in SM 8-hour treatment group and SM prevention group. The expression of AQP-1 was significantly expression in the group of SM prevention group (P < 0.01).


CONCLUSIONS
SM may improve the body fluid metabolism and alleviate the degree of the lung edema by regulating the expression of AQP-1. The results suggest SM can regulate the activity of AQP-1 to improve the water metabolism of ALI.
Li
Min
M
The fourth militory Medical University, Xi'an 710032, China.
Li
Feng
F
Hu
Bo
B
Wang
Wen
W
Ren
Qin-you
QY
Hang
Li
L
Zhang
Ya-ping
YP
D000208:Acute Disease; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology* / Q000627:therapeutic use; D051398:Aquaporin 1 / Q000096:biosynthesis; D004195:Disease Models, Animal; D004365:Drugs, Chinese Herbal / Q000494:pharmacology* / Q000627:therapeutic use; D005260:Female; D007150:Immunohistochemistry; D008168:Lung / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D008297:Male; D011654:Pulmonary Edema / Q000139:chemically induced / Q000188:drug therapy* / Q000378:metabolism; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley; D027561:Salvia miltiorrhiza / Q000737:chemistry*
D000894:Anti-Inflammatory Agents, Non-Steroidal; C496022:Aqp1 protein, rat; D004365:Drugs, Chinese Herbal; D051398:Aquaporin 1