Objective To compare hemostatic effect of bilateral uterine artery superior branch ligation and gauze intrauterine filling two methods for the placenta previa cesarean section bleeding.Methods 100 patients with bleeding in cesarean section were randomly divided into observation group (50 cases) and control group (50 cases).The patients in the observation group were treated with bilateral uterine artery ascending branch,and the control group was treated with gauze.The number of blood transfusion,the time of operation,the amount of bleeding,the time of hemostasis,the number of hysterectomy and the occurrence of complications were compared between the two groups.Results The success rate of hemostasis in the observation group (98.0％) was higher than that in the control group (86.0％),the difference was statistically significant (x2 =4.891,P ＜ 0.05).The bleeding volume and hemostasis time were (577.8 ± 55.9) mL,(19.2 ± 10.2)min,the differences between the two groups were statistically significant (t =2.50,3.25,all P ＜ 0.05).The operation time between the two groups had no significant difference (P ＜ 0.05).The transfusion rate and incidence rate of complications in the observation group were 8.0％ and 6.0％,which were significantly lower than those in the control group (22.0％,20.0％),and the differences were statistically significant (x2 =3.843,4.332,all P ＜ 0.05).Conclusion The use of bilateral uterine artery esophageal branching in the placenta previa is effective in controlling bleeding,it has rapid bleeding and low incidence of complications,and is worthy of clinical application.

Objective To select a best type of macroporous resin for the isolation and purification of total alkaloids from Rhizoma Coptidis.Methods With the adsorption rate and desorption rate of total alkaloids from Rhizoma Coptidis as the observation indexes,an initial selection of macroporous resin was carried out in AB-8,HP20,LD605,ADS-3,ADS-5,D151,DA-201,XAD7 and NKA-9.After the initial selection,the desorption rate of berberine hydrochloride was used as the index for the further selection.Results Of the nine types of resin,ADS-3 had good adsorption and desorption activities,with an adsorption rate being 97.26% and a desorption rate being 84.82%.Meanwhile,the amount of desorpted berberine hydrochloride was up to 9.311 mg.Conclusion ADS-3 shows good adsorption and desorption properties for total alkaloids and berberine hydrochloride,and can be used for the isolation and purification of total alkaloids from Rhizoma Coptidis.

Objective To establish a HPLC method for the determination of kaempferol-7-O-?-D-glucopyranoside in Hosta ventricosa stearn.Methods HPLC ana1ysis was carried out on a Phenomenex Luna C18(250 mm?4.6 mm,5 ?m) column,gradient elution with the mobile phase of 0.5 % phosphate acid in water-methanol.The detective wavelength was set at 364 nm.Results calibration curve was linear within the range of 0.113 ～ 2.260 ?g for kaempferol-7-O-?-D-glucopyranoside,coefficient correlation being 1.The average recovery was 101.1 %(RSD= 2.58 %,n=6).Conclusion The content of kaempferol-7-O-?-D-glucopyranoside in Hosta ventricosa stearn is 0.2 mg/g(0.02 %) on average.This method is simple,accurate and practical for the determination of kaempferol-7O-?-D-glucopyranoside.

AIM:To establish a HPLC fingerprint of Stellera chamaejasme L. from Inner Mongolia Region. METHODS: The RP-HPLC method was used with Akzonobel Kromasil C_ 18 (250 mm?4.6 mm, 5 ?m) the acetonitrile-0.5% phosphoric acid (gradient elution) was used as mobile phase, analytic time was 60 min, and detective wavelength was at 297 nm, the column temperature of 15℃ were adopted. RESULTS: The HPLC fingerprint of Stellera chamaejasme L. set up showed that 14 peaks were co-possessing in different sources. The results of method validation met technical standard of fingerprint, the similarities of Stellera chamaejasme L. were 0.9 to 1.0. CONCLUSION: The method is stable and reliable with a good reproducibility and provides a reference standard for the quality control of Stellera chamaejasme L. from Inner Mongolia Region.

OBJECTIVE:To study whether Radix Inulae can replace Radix Aristolochiae as medicinal material.METHO_ DS:Comparison was made between Radix Inulae and Radix Aristolochiae in terms of plant resources,functions and indications,chemical compositions,pharmacologic actions,clinical applications,etc.by reviewing literature.RESULTS&CONCLUSIONS:Radix Inulae and Radix Aristolochiae were different in every aspect,thus the two can’t be replaced by each other as medicinal material.

Objective:To evaluate the sonodynamic effect of chlorin-e6, a sonosensitizing agent, on the proliferation of MDA-MB-231 cells. Methods:MDA-MB-231 and normal peripheral mononuclear cells (PMNCs) were treated with chlorin-e6 alone or combined with ultrasound. Cell proliferation was determined by MTT assay and cell morphology was observed under inversed fluorescence microscope. Results:Treatment with ultrasound (1.0 MHz, 1.0-2.0 W/cm~2,60 s) or chlorin-e6 (0.10-1.60 mg/mL) alone significantly inhibited the cell proliferation of both MDA-MB-231 and PMNC cells in a intensity-dependent and a dose-dependent manner, respectively. The 50% intensity of ultrasound for inhibiting the growth of MDA-MB-231 and PMNC cells was 1.23 W/cm~2 and 1.25 W/cm~2, respectively (P>0.05) and the IC_(50) of chlorin-e6 was 0.38 mg/mL and 0.77 mg/mL, respectively (P<0.05). Compared with single ultrasound (1.0 MHz,0.5 W/cm~2,60 s) or chlorin-e6 (0.05-0.20 mg/mL) treatment, the combination of ultrasound with chlorin-e6 significantly inhibited the proliferation of MDA-MB-231 cells (P<0.05), while had no synergistic inhibitory effects on the growth of PMNC(P>0.05). Compared with single ultrasound treatment (1.0 MHz, 0.5 W/cm~2,60 s) and single chlorin-e6 treatment (0.20 mg/mL), combination of ultrasound and chlorin-e6 significantly increased the death rate of MDA-MB-231 cells (P<0.05). Conclusion:Ultrasound combined with chlorin-e6 exerted specific inhibitory effect on the proliferation of MDA-MB-231 cells. Chlorin-e6 may be a promising sonosensitizing agent for the treatment of breast cancer.

Objective To summarize our experience in the diagnosis and management of popliteal artery entrapment syndrome (PAES). Methods This is a retrospective study on 10 patients (13 limbs)who were admitted for symptoms of claudication and the diagnosis of popliteal entrapment was established either with angiography,computed tomographic angiography,magnetic resonance angiogram or during the operation in recent 7 years (2002-2009).All patients were treated surgically. Results The mean age at the time of presentation was (25 ±7) years old (range,17-41 years).Claudication was the most frequent presenting symptom (12 limbs).The surgical procedures consisted of simple musculotendinous dissociation in 1 limb,thrombectomy with balloon angioplasty in 1 limb,musculotendinous dissociation plus thromboendarterectomy with autogenous saphenous vein (ASV)patch angioplasty in 2 limbs,ASV graft interposition or bypass in 6 limbs and graft interposition or bypass in 3 limbs.At a median follow-up of (35 ±27) months (range,2 months-7 years),there were no intraoperative or long-term postoperative complications and all the patients were cured. Conclusions PAES is an unusual but important cause of peripheral vascular insufficiency especially in young patients.A combined approach is necessary for diagnosis.Popliteal artery release alone or with vein bypass or reconstruction is the treatment of choice.

Objective To study the causes of pancreatic fistula following pancreatioduodenectomy, and evaluate the effect of total pancreatic uncinate process resection on the prevention of pancreatic fistula by analyzing the potential aetiology of pancreatic fistula after pancreaticoduodenectomy.Methods The clinical data of 68 patients, who were admitted into the No. 1 ward of Surgical Department of Peking University First Hospital during the period from Jan. 2004 to Jun. 2009, were retrospectively analyzed. The day-average level of amylase higher than 3 times of normal value, as measured from the drainage of peritoneal cavity, serves as the diagnostic criterion of the postoperative pancreatic fistula.Factors relevant to fistula, which result in the abnormal increase of the amylase in the drain, such as the extent of resection of pancreatic uncinate process, the anastomotic manners of pancreas and digestive tract, and the pancreatic fibrosis were statistically analyzed. Results The incidence of pancreatic fistula was 33. 8% according to the diagnostic criterion mentioned above; Single factor analysis showed that the resection extent of uncinate process (P = 0. 000) and the level of serum glucose ( P = 0. 045 ) were correlated with the occurrence of pancreatic fistula. Multivariate analysis identified that the independent risk factor for pancreatic fistula was the resection extent of uncinate process(P =0. 000). Pancreatic fibrosis, the manners of the anastomosis of pancreas and digestive tract were not independent risk factors. Conclusion Total resection of uncinate process could prevent pancreatic fistula from residual pancreatic uncinate process, hence reduce the incidence of pancreatic fistula following pancreaticoduedenectomy.

Objective To observe the operation methods and curative effect of sacroiliac joint screw fixation by using traditional imaging monitoring technique in combination with sacral slope position imaging monitoring technique. Methods After bone traction and enema cleansing, 37 patients with pelvic fractures were fixed with sacroiliac joint screws, which was monitored under C-armed X ray machine at slope position, inlet and outlet views. There were 23 males and 14 females, at average age of 30. 8 years (18-63 years). Results All the patients were followed up for 4-23 months (average 9. 8 months) , which showed basic anatomical restoration in 28 patients, coronal section dislocation for 2 mm in seven and dislocation for 5 mm in two. All fractures were healed, with no nerve or blood vessel complications found. According to Majeed scoring, the excellence rate was up to 94. 5%. Conclusions Combined use of traditional imaging monitoring and sacral slope position imaging monitoring can help improve the safety of percutaneous iliosacral screw fixation, simplify operation process and shorten operation time.