1.Discussing the Correlation between BA,EMAb, ACA and Unexplained Recurrent Spontaneous Abortion
Liuqing CHEN ; Jufei LIAN ; Li ZENG ; Kefeng LAI ; Zhu LIN
Journal of Modern Laboratory Medicine 2015;(4):137-140
Objective To discuss the correlation between the joint detection of BA,EMAb,ACA and unexplained recurrent spontaneous abortion(URSA).Methods Selected 144 URSA cases,166 SA(sporadic abortion)cases,188 normal pregnant women,and detected their BA,EMAb,ACA and statistical analysis of parallelism.Results Comparing URSA group with SA group and control group respectively,there were significant statistical difference between BA negative rate (74.31%, 25.30% and 50.53%),EMAb positive rate (35.42%,7.23% and 6.91%)and ACA positive rate (26.39%,5.42% and 5.32%)(χ2 = 19.344 ~ 74.180;P < 0.05;χ2 = 37.837 ~ 42.586,P < 0.05),(χ2 = 26.355 ~ 29.270,P < 0.05).URSA group’s BA,ACA and EMAb joint detection rate of positive (84.72%)was significantly higher than SA group and the con-trol group (χ2 =35.532~93.076,P <0.05).Conclusion There was a close relationship between the lack of BA,the genera-tion of EMAb,ACA and unexplained recurrent spontaneous abortion.Joint detection has important clinical significance in auxiliary diagnosis of unexplained recurrent spontaneous abortion and prognosis judgement.
2.Effects of fluvastatin on intercellular adhesion molecule-1 expression induced by C-reactive-protein in human umbilical vein endothelial cells
Lin LV ; Kefeng LU ; Xinglei ZHU ; Aihong WANG ; Ling GUO
Basic & Clinical Medicine 2006;0(04):-
Objective To study the effects of Fluvastatin on the expression of intercellular adhesion molecule-1 (ICAM-1) in human umbilical vein endothelial cells (HUVECs) induced by C-reactive protein (CRP). MethodsThe HUVECs were primary cultured. HUVECs from third to sixth generations were stimulated with different concentrations CRP and at different times. Then the cells were treated with Fluvastatin in different concentration of 10-7,10-6 and 10-5mol/L. The content of ICAM-1 protein was detected with ELISA, the mRNA expression of ICAM-1 was evaluated by RT-PCR. Results In the control group, HUVECs produce ICAM-1 protein and mRNA in low concentrations. In CRP group, the content of ICAM-1 protein was increased significantly (P
3.Pharmacokinetics study on characteristic ingredients of different-dose herbs of shaoyao-gancao decoction.
Rongwan HU ; Lan SHEN ; Yi FENG ; Desheng XU ; Kefeng RUAN ; Xiao LIN ; Yanlong HONG
Acta Pharmaceutica Sinica 2011;46(3):329-32
The paper is to report the observation of pharmacokinetic changes of the characteristic ingredients in the combinations of different-dose herbs of Shaoyao-Gancao decoction. After the establishment of HPLC analytical method of plasma effective constituents, rats were orally administered with different-dose herbs of Shaoyao-Gancao decoction. Blood samples at different times after administering these decoctions were collected, and then were analyzed by HPLC fingerprints technology. Pharmacokinetic parameters of characteristic peaks were analyzed by SPSS 15.0 software and DAS 2.0. At last, we looked for the correlation of those pharmacokinetic parameters and the dosage of Gancao. The best dose of Shaoyao-Gancao decoction was at the ratio of 4 to 4, which was consistent with the dose commonly used in ancient times. The absorption of characteristic peaks from Shaoyao-Gancao decoction was related with the dosage of Gancao, and there existed interaction between each characteristic ingredients. There existed the right dose-ratio of Shaoyao and Gancao to get the best effect. The absorptions of effective constitutents were mutual waxing and waning in order to increase biological effects together. It's demonstrated the compatibility connotation at a right dose-ratio of Shaoyao-Gancao decoction through the angle of pharmacokinetics.
4.Effects of Monocrotaline on Right Ventricular Function and Expression of Cardiac Canonical Transient Receptor Potential Channels Subfamily in Experimental Rats
Kefeng CAI ; Huiqin CHEN ; Xunfa XU ; Weiqiang LIN ; Chaoxiang XU ; Guozhen CHEN
Chinese Circulation Journal 2014;(11):928-931
Objective: To explore the effects of monocrotaline (MCT) on right ventricular function and expression of cardiac canonical transient receptor potential channels (TRPC) subfamily in experimental rats.
Methods: The SD male rats were randomly divided into 2 groups:Control group, the rats were normally fed and MCT group, the rats received a single dose injection of MCT 60 mg/kg to induce myocardial hypertrophy. n=10 in each group and all animals were treated for 3 weeks. The right ventricular hemodynamics parameters and right ventricular hypertrophy index (RVHI) were measured, right ventricular myocardium tissue section was observed by HE staining, the mRNA and protein expressions of TRPC subfamily were examined by RT-PCR and Western blot analysis.
Results: Compared with Control group, MCT group had increased RVSP, RVHI, RV+dp/dtmax and decreased RV-dp/dtmax, all P<0.01. In MCT group, the right ventricular myocardial cells had the thinker ifber, deeply stained nuclei with irregular shape. Compared with Control group, the mRNA and protein expressions of right ventricular TRPC6 were elevated in MCT group, n=6 and n=4 respectively, all P<0.05.
Conclusion:Right ventricular hypertrophy could be induced by 3 weeks MCT treatment, it up-regulating the mRNA and protein expressions of TRPC6 which might be involved in the occurrence and development of cardiac hypertrophy in experimental rats.
5.Advance on auxiliary liver transplantation
Wei ZHANG ; Kaishan TAO ; Zhenyu TI ; Lei CAI ; Lin LI ; Kefeng DOU
International Journal of Surgery 2009;36(2):100-103
Auxiliary liver transplantation reserves whole or part of recipient' native liver while implanting the graft. It call be classified as auxiliary heterotopic liver transplantation and auxiliary orthotopic liver transplantation according to the location of the graft. On the basis of graft volume. it can be categorized as whole liver auxiliary liver transplantation and partial liver auxiliary liver transplantation. Either cadaveric or living donor is available. Because auxiliarg orthotopic liver transplantation is only the partial liver transplantation, so it is also called aunliry orthotopic partial liver transplantation. The. technique of auxiliary liver transplantation progresses with the devehopment of liver transplantation. Great attention is paid to auxiliary liver transplantation because of its special superiority, in spite of some unresolved problems.
6.Pharmacokinetics of a long-circulating PEGylated Radix Ophiopogonis polysaccharide.
Zhuojun WANG ; Xiao LIN ; Lan SHEN ; Yi FENG ; Desheng XU ; Kefeng RUAN
Acta Pharmaceutica Sinica 2011;46(10):1257-61
The pharmacokinetics of a long-circulating PEGylated Radix Ophiopogonis polysaccharide (ROP) was investigated in rats following i.v. or s.c. administration at three dose levels (9, 20, 50 mg x kg(-1)). A moderate coupling reaction between the hydroxyl-activated ROP and the amino-terminated mPEG was chosen to produce PEGylate ROP. The grafting degree of the prepared conjugate was 1.03, and the molecular mass of mPEG used was 20 kDa. High-performance gel permeation chromatorgraphy with fluorescein isothiocyanate prelabeling was established to determine levels of the conjugate in plasma. The results showed that the elimination half-life of the conjugate following s.c. administration was basically identical to that after iv administration. An accurate linear correlation was observed between administration doses and areas under the curve of plasma conjugate level vs. time profile, regardless of the administration route. The absolute bioavailability of the conjugate following sc administration was approximately 56%, and the mean in vivo residence time was 52.1 h, increased 2.4 times compared to those of iv administration. In general, linear pharmacokinetics was observed for the conjugate within the dose range studied, and sc should be a promising administration route for the conjugate.
7.Application of pancreaticojejunostomy procedures selection strategy in pancreaticoduodenectomy
Guangya ZHANG ; Jingshi ZHOU ; Haimin LI ; Hengchao YU ; Lin WANG ; Kefeng DOU
Chinese Journal of Digestive Surgery 2013;(2):124-127
Objective To evaluate the pancreaticojejunostomy procedures selection strategy in pancreaticoduodenectomy.Methods The clinical data of 455 patients who received pancreaticoduodenectomy at the Xijing Hospital from June 2007 to June 2012 were retrospectively analyzed.For patients with pancreatic duct diameter≥4 mm,duct-to-mucosa pancreaticojejunostomy(DMPJ)was applied(DMPJ group,210 cases).For patients with pancreatic duct diameter < 4 mm,modified Child pancreaticojejunostomy was applied to 140 patients(modified Child group)whose jejunal end was smaller than the pancreatic stump,and binding pancreaticojejunostomy was applied to 105 patients(binding group)whose jejunal end was bigger than or equal to the pancreatic stump.The clinical efficacy and incidence of postoperative complications were compared among the 3 groups.The count data and measurement data were analyzed by chi-square test and t test,respectively.Results The pancreatic duct diameter of the DMPJ group was(4.4 ± 0.7)mm,which was significantly bigger than(2.8 ± 0.6)mm of the modified Child group and(2.3 ± 0.7)mm of the binding group(t =2.25,2.48,P < 0.05).The diameter of the pancreatic stump of the modified Child group was(36 ± 5)mm,which was significantly bigger than(21 ± 6)mm of the binding group(t =21.65,P < 0.05).The overall incidence of pancreatic leakage was 8.4%(38/455).There were no significant differences in the incidences of pancreatic leakage,peritoneal bleeding,abdominal infection,digestive dysfunction rate and the mean duration of hospital stay among the 3 groups(x2 =0.53,0.88,1.63,5.34,F =2.53,P > 0.05).Conclusion Pancreaticojejunostomy procedure selection strategy based on the diameters of pancreatic duct and pancreatic stump could obtain good clinical efficacy and is appropriate.
8.FBD used to improve learning and memory function of animals
Wenxin DONG ; Kefeng RUAN ; Fenghua GU ; Pingrang SHEN ; Pengyun LI ; Zhihong LIN
Chinese Traditional and Herbal Drugs 1994;0(12):-
Objective To study on FBD (composed with Poria cocos, Atractylodes macrocephala, and Angelica sinensis) used to improve learning and memory function of animals. Methods The mice were treated by ig FBD with the doses of 35, 70 and 140 mg/kg for one week continuously. Effect of FBD on dysmnesia of acquired learning of mice induced by scopolamine, dysmnesia of memory retention of mice induced by NaNO2, and dysmnesia of reappearance of memory of mice induced by 45% ethanol were studied. Improvement for the dysmnesia of memory due to chronic blood deficiency in brain of rats induced by ligating the carotid arteries of two sides were observed. Results FBD can improve the dysmnesia of mice induced by scopolamine, NaNO2, and 45% ethanol significantly, also dysmnesia due to chronic blood deficiency in brain of rats induced by ligating the carotid arteries. Conclusion FBD has the function to improve the learning and memory function of animals.
9.Thoughts on some questions in the diagnose and treatment for gallbladder carcinoma
Mengyang LI ; Yuan ZHANG ; Yiting LIN ; Ying ZHAO ; Menghao LI ; Xu CHEN ; Kefeng DOU
Chinese Journal of Hepatobiliary Surgery 2017;23(4):285-288
Gallbladder carcinoma is the most common malignancy in biliary tract.Early dissemination,rapid and silent progression and delayed diagnose could portend a dismal prognosis.The 5-year survival rate is less than 10%.Clarifying the etiological feature can improve the early diagnosis.Comprehending surgical indications of benign lesions can provide the methods for rational prophylactic resections.Standardized treatment of accident gallbladder carcinoma could improve the patients' prognosis.Efficient serologic markers could be used for early diagnosis and screening.
10.Screening of theα-Glucosidase Inhibitory Active Part from Yao Medicine Pothos chinensis
Yourui XU ; Hui YI ; Kefeng ZHANG ; Ying LIAO ; Jiaxun LIN ; Xiaoqun DUAN
China Pharmacy 2017;28(16):2235-2237
OBJECTIVE:To screen the α-glucosidase inhibitory active part from Pothos chinensis. METHODS:The aqueous extractions of P. chinensis were extracted by petroleum,ethyl acetate,n-butyl alcohol in turn to obtain different polarparts. Effect of each part on α-glucosidase inhibitory activity was determined,and enzyme inhibition kinetics was conducted for the screened parts with strong activity and relatively high yield rate;effects of each part on blood glucose level of mice loaded with glucose,su-crose and starch were respectively determined (using Acacoside tablet as positive control). RESULTS:Enzyme inhibition kinetics in vitro showed the ethyl acetate part [yield rate was 0.40%,enzyme activity inhibition rate was(72.90±2.85)%] had strongα-glu-cosidase inhibitory activity and showed a dose-dependent,fast,non-competitive and reversible model. Results of in vivo glucose tol-erance indicated that Acacoside tablet and each part of P. chinensis had no effects on blood glucose level of glucose-loaded mice (P>0.05);while Acacoside tablet and ethyl acetate part in P. chinensis could reduce 30,60 min blood glucose level of su-crose-loaded mice and 30,60,120 min blood glucose level of starch-loaded mice(P<0.05 or P<0.01). CONCLUSIONS:Ethyl acetate part is theα-glucosidase inhibitory active part from Yao medicine P. chinensis.