The method, established for analysis of paeoniflorin in blood plasma, appeared a good linear relationship(r=0.9998). Using meta-hydroxybenzoic acid as internal standard and calibration factor combined, the quantitation precision of method could be raised. The result of determination of calibration factor conformed with the chromatography prescriptions in "Pharmacopoeia of China" (edited in 1990). The average recovery reached up 97.13％. The minimum detection amount was 5.6ng. The coefficients of within-day and between-day variation were 0.39％ and 1.17％, respectively. This method is suitable for paeoniflorin analysis of in vivo sample . At present,the in vivo absorption of Baihegujintang Granules (containing Radix Paeoniae alba or Radix Paeoniae rubra) by rabbit is preliminarily investigated utilizing this method.

Objective To study trabeculectomy with adjustable sutures on the ocular function score in pa-tients with angle-closure glaucoma .Methods 98 cases ( 134 eyes ) were randomly divided into the two groups , the control group(n=49 cases,66 eyes) and the observation group (n=49 cases,68 eyes).The patients in the control group were operated through trabeculectomy ,while the patients in the observation group were operated through trabe-culectomy with adjustable sutures .The occurrence of the two groups of patients intraocular pressure changes , and recovery of sight,shallow anterior chamber before and after surgery three months were observed .Postoperative 1d,3d, 1m and 3m ocular function score were compared .Results Postoperative 3 months IOP were significantly lower ( t=3.921,5.746,all P<0.01),and compared with the control group ,the observation group significantly decreased (t=2.680,P<0.05).Postoperative 3 months visual acuity significantly improved in patients (t=2.460,2.976,all P<0.05),and compared with the control group,the observation group improved more significantly (t =2.062,P <0.05).The incidence of postoperative shallow anterior chamber were 12.1% in the control group and 2.9% in the observation group Shallow anterior chamber in observation group was significantly less than that in the control group (χ2 =7.98,P<0.01).The two groups of patients after ocular surface scores were decreased in the observation group after 1d,3d,1m and 3m and ocular scores were lower than that of the control group ( t =2.1901,2.680,3.172, 3.013,all P<0.05).Conclusion Trabeculectomy with adjustable sutures can promote the recovery of angle-closure glaucoma,ocular function.

Objective To explore the CT manifestation and the diagnostic value of leiomyomatous tmnor of gastrointestinal tract in 8 patients.Methods 8 patients with gastrointestinnal tract leiomyoma tumor were scaned with GE HISPEED CT/I.proceeding to scan with contrast agent when detected and ascertained the nidus.Results There were 4 eases gastric smooth muscle tumors in 8 patients,and 1 case was leiomyosarcoma of stomach,1 case was duodenal muscle tumors,1 case as jejuna muscle tumors and another is leiomyosarcoma of jejunum.Conclusion The location,contour and characteristic of imaging is important standard of leiomyomatous tumor of gastrointestinal tract.

Objective To observe the expression of neuroglobin in brain of rat with septic shock,and study the protective effect of neuroglobin.Methods Sixty male SD rats were randomly di-vided into two groups,30 rats in each.The rats in group M were injected LPS 10 mg/kg through tail vein to establish septic shock model,the success standard of septic shock was systolic blood pressure dropping to 60% of the basic values;the control group were given equal volume of NS.The levels of rat TNF-α,IL-6 and NGB in serum at the time points of before LPS injection (T0 ),1 h (T1 ),2 h (T2 ),4 h (T3 )and 6 h(T4 )after LPS injection were measured using ELISA kits.NGB and caspase-3 protein expression in brain were determined using Western blotting.Results Compared with group C and T0 ,the TNF-α,IL-6 concentrations in serum and caspase-3 in brain were increased significantly at T1-T4 (P <0.05),NGB protein content in serum and brain at T3 and T4 were increased significantly (P <0.05).Conclusion Cell apoptosis and inflammatory response are discovered in the brain during septic shock.NGB is over-expressed in brain of rats with septic shock,which may play a role of pro-tective function.

Objective To investigate the common reasons for intracranial hemorrhage after cranioplasty ,and to analysis the sig‐nificant perioperative factors of intracranial hemorrhage after cranioplsty .Methods Eight hundred and seventy two cases of cranio‐plasty were retrospectively analyzed ;the postoperative intracranial hemorrhage and perioperative risk factors were conducted with multiple linear regression analysis .Results Among the 872 cases ,46 cases suffered intracranial hemorrhage .We found three signifi‐cant perioperative factors of intracranial hemorrhage after cranioplasty :suspension for epidural ,not completely hemostasis and ex‐cessive drainage in ventriculoperitoneal shunt .Conclusion To avoid the three risk factors as far as possible could effectively reduce the incidence of intracranial hemorrhage after cranioplasty .

Objective To study the effect of adeno associated virus hepatocyte growth factor K1(AAV‐HGFK1)on the prolifer‐ation of 4 different colorectal cell lines with or without KRAS or BRAF mutation .Methods The levels of epidermal growth factor receptor (EGFR) mRNA were determined in SW48 without KRAS or BRAF mutation ,Lovo with KRAS mutation ,SW620 with KRAS mutation ,HT29 with BRAF mutation by quantitative real time PCR ,respectively .After the infection of AAV‐HGFK1 ,the expressions of EGFR ,p‐EGFR and β‐actin were detected by Western blot and the proliferation of the cells were assayed using MTT .Results Lovo ,SW48 and HT29 expressed EGFR protein while SW620 did not .EGF promoted the proliferation of Lovo , SW48 and HT29 cells .AAV‐HGFK1 down‐regulated the phosphorylation of EGFR and significantly inhibited their proliferation . But EGF had no effect on proliferation of SW620 stimulated by EGF .Conclusion AAV‐HGFK1 exhibited its antitumor effects through EGF/EGFR signaling irrespective of the KRAS or BRAF mutation and may also act through other signaling pathways .

OBJECTIVE:To study the interaction of baicalin with berberine for intestinal absorption in rats. METHODS: The mode was induced by in situ intestinal perfusion to observe the absorptive kinetics characteristic in rats’ intestine before and after mixing. RESULTS: The absorption rate constant (ka) and absorption rate (A) of baicalin alone were (0.068?0.002)h-1 and (5.92?1.39)% while those of baicalin mixed with berberine were (0.060?0.002)h-1 and (4.27?1.23)% , respectively. ka and A of berberine alone were (0.044?0.003)h-1 and (3.47?0.64)% while those of berberine mixed with baicalin were (0.057?0.006) h-1 and (5.18?0.83)%, respectively. There were significant difference in the absorption rate constant of baicalin after mixing(P

Objective To study the effects of mifepristone on fetus liver and kidney in the management of second-trimester pregnancy. Methods We selected 16 of the second-trimester pregnant (1 6 to 22 weeks) women who requested termination of pregnancy, and divided them in to two groups. In the mifepristone group (n=8), each woman received 150 mg mifepristone orally (separated to 25 mg, twice per day), following which prosta glandin (600 ?g) was orally administered on the fourth morning. The contro l group (n=8) was induced labor with water bag. After the fetal disengagemen t, immediate anatomization was performed on the fetus and 4 small pieces of live r and kidney tissues were obtained. Then the samples for electron microscope wer e prepared and observed. Results Compared with the control group, liver and kidney u ltrastructure in the mifepristone group showed extensive pathological changes. Conclusion Termination of pregnancy with mifepristone can d amage the liver and kidney of fetus, so it will be not suitable to continue preg nancy after unsuccessful induced labor by mifepristone in the second-trimester pregnancy. Mifepristone should be carefully used to end the mature pregnancy.

Objective To explore a new method for lacrimal passage irrigation after laser dacryocystoplasty surgery. Method One-hundred patients (104 eyes), which underwent laser dacryocystoplasty surgery combined with lacrimal drainage tube indwelling, were divided into two groups. In Group A (50 patients, 52 eyes), lacrimal passage irrigation was performed by traditional No.5 needle. While in Group B (50 patients, 52 eyes), it was done by No.7 blunt round needle designed by the researchers. Lacrimal passage irrigation was performed three times, each at the 3rd day, 1 week and 1 month after surgery. The silicone tube was removed 3 months after surgery and the treatment was evaluated. Results The total effective rate was 64% (32/50) in Group A and 92%(46/50) in Group B. The difference was statistically significant (χ2=18.537, P < 0.01). Conclusions The No.7 blunt round needle showed better effect when used for lacrimal passage irrigation after laser dacryocystoplasty surgery. It could improve the efficiency of lacrimal passage irrigation, thus decreasing irrigation times and reducing psychological pressure for the patients, which is worthy of clinical application.

Objective To explore the clinical risk factors influencing the short-term prognosis of transient ischemic attack(TTA).Methods We collected the clinical data of 162 patients with TIA in this study.All the patients were followed up for 90 days.Multiple factor analysis was performed by Cox regression model(SPSS 13.0 software).Results Within 90 days after TIA,40 of 162 patients(24.7%)experienced cerebral infarction.The risk of cerebral infaition during the first 30 days after TIA was higher.The independent risk factors for the prognosis within 90 days after TIA were the duration of TIA(RR=17.172,P＜0.01),hyperfibrinogenemia(RR=3.071,P＜0.01),abnormal blood glucose level(RR=2.651,P＜0.01),and hypertension(RR=3.356,P＜0.01).Conclusion The duration of TIA,hyperfibrinogenemia,abnormal blood glucose level,and hypertension are independent risk factors for the short-term prognosis of TIA.