[Alteration of thromboxane A2 and prostacyclin levels in rats with obstructive jaundice and the effect of salviae miltiorrhizae on them].
OBJECTIVE
To observe the alteration of plasma levels of thromboxane A2 (TXA2) and prostacyclin (PGI2) as well as changes of microcirculation in renal cortex of obstructive jaundice model rats, and to study the effect of Radix Salviae miltiorrhizae (SM) on them.


METHODS
SD rats were randomly divided into three groups: the sham operation group (A), the common bile duct ligation model group (B), and the SM treated model group (C). Their blood plasma TXA2/PGI2 ratio (T/P), blood levels of urea nitrogen (BUN) and creatinine (Cr) were determined respectively in batches (8 rats from each group) on the 3 rd, 7th and 10th day, their capillary caliber (CC) in renal cortex was measured at the same time points using WX-9 type microcirculation microscope.


RESULTS
Compared with Group A, T/P was higher and CC was smaller in Group B at all the time points. Levels of BUN and Cr increased on day 7 and day 10 after modeling (P<0.05), and they were increasing markedly along with the elongation of the obstructive time (P<0.05). As compared with Group B, T/P was lower and CC was expanded in Group C, with levels of BUN and Cr lowered on day 10 (P<0.05).


CONCLUSIONS
T/P elevation and renal microcirculation obstacle are the important factors for inducing renal injury in obstructive jaundice, and SM shows a protective effect on kidney against the injury.
Qin
Qi-yu
QY
Department of Hepatic Surgery, the First Hospital of Hebei Medical University, Shijiazhuang 050051.
Chen
Jin-jun
JJ
Zhang
Qing-fu
QF
D000818:Animals; D004365:Drugs, Chinese Herbal / Q000627:therapeutic use*; D011464:Epoprostenol / Q000097:blood*; D041781:Jaundice, Obstructive / Q000188:drug therapy / Q000378:metabolism*; D008297:Male; D008517:Phytotherapy; D051381:Rats; D017207:Rats, Sprague-Dawley; D027561:Salvia miltiorrhiza / Q000737:chemistry; D013928:Thromboxane A2 / Q000097:blood*
D004365:Drugs, Chinese Herbal; C028972:dan-shen root extract; D013928:Thromboxane A2; D011464:Epoprostenol