Objective To discuss the clinical effect of Xipayinguyinye on oral bacteria in vitro and gingivitis in vivo.Methods Took the method of agar dilution to measure the minimum inhibitory concentration (MIC) of Xipayinguyinye on Porphyromonas gingivalis ( P.gingivalis),Prevotella intermedia ( P.intermedia ) and Fusobacterium nucleatum( F.nucleatum)in vitro;choose 112 patients with simple gingivitis and they were randomly divided into the research group and control group.The research group(56 cases)received the treatment of Xipayiguyinye,while the control group(56 cases)received the treatment without effect components.Both groups received 7 days of treatment and then observed the changes of sulcus bleeding index ( SBI ) and plaque index ( PLI ) before and after the treatment.Results MICof Xipayiguyinye in vitro was 1.0g/L for P.gingivalis and F.nucleatum and 0.5g/L for P.intermedia.There was no statistifically significant difference in SBI and PLI between two groups before the treatment(P ＞0.05) ;there was significant difference in SBI and PLI of research group before and after the treatment ( P ＜ 0.05 ) ; there was no significant difference in SBI and PLI of control group before and after the treatment( P ＞ 0.05 ) ;there was significant difference in SBI and PLI in SBI and PLI between two groups after the treatment ( P ＜ 0.05 ).Conclusion Xipayiguyinye could prevent bacteriostasis well and decrease the accumulation of dental plaque,reduce SBI and improve the health of the gingiva in vivo.

Two kinds of incorrect cultivation modes were existed since the launch of cultivation for professional degree postgraduate of clinical medicine:taking professional degree postgraduates as scientific degree postgraduates to cultivate or taking scientific degree postgraduates as professional degree postgraduates to cultivate.In this paper,taking the cultivation of oncologic professional degree postgraduates as example,we put forward some suggestions:strengthening clinical skill training,promoting thinking mode of evidence-based medicine and enhancing clinical trial and statistical training.

Objective To explore the feasibility and reliability of laparoscopic fundoplication in the treatment of severe gastro-esophageal refulx disease. Methods Five cases of laparoscopic fundoplication were reviewed retrospectively from June 2001 to October 2001. Results Laparoscopic Nissen Fundoplication was performed in 3 cases, Laparoscopic Toupet Fundoplication in 2 cases. Preoperative symptoms were completely relieved. The postoperative esophageal manometry increased from (7 32?1 34)mmHg to (18 20?3 43)mmHg( t =12 23, P

Objective To explore the absorption characteristics and mechanism of P-glycoprotein (P-gp) mediated transport of oleanolicacid (OA)across membrane in vitro.Methods The intake and transport of OA were evaluated by an HPLC/MS quantitative detection method.Safe concentration range of OA was determined by MTT.The effect of different drug concentration,incubation time,pH and temperature on the intake of OA by Caco-2 cells were investigated.The effect of P-gp inhibitor on the transmembrane transport of OA was investigated by the Caco-2 cell monolayer model,and the apparent permeability coefficient (Papp) was calculated.Results The uptake of O A was concentration-time dependent and correlated negatively to temperaturein Caco-2 cells within the safe concentration range,but was not significantly affected by pH value.Compared with controls,the Papp significantly changed when the P-gp inhibitor was added to the model(P ＜ 0.05).The apparent permeability ratio decreased from 2.90 to 0.95.Conclusion The absorption of OA was primarily by passive diffusion and might be mediated by the effiux by P-gp.

Objective To explore the feasibility and rel ia bility of laparoscopic fundoplication in the treatment of severe gastro-esopha geal reflux disease.Methods Retrospectively forty-two cases of laparoscopic fundop lication were reviewed from June 2001 to March 2004.Results Laparoscopic Nissen fundoplication was performed in 33 cases, and laparoscopic Toupet fundoplication in 9 Symptom score was decreased from 11 56?1 32 to 2 04?1 36 (P

Objective To evaluate the main scanning technique and clinical value of 16-slice spiral CT coronary angiography(CTCA).Methods Plain and enhanced imaging were performed by retrospective ECG gating in 76 patients,including 65 cases suspected coronary artery disease,8 cases of coronary stent and 3 cases of coronary bypass graft.Post-processing was conducted with VesselView soft package,in which MPR,MIP,VRT and section plane of conoray artery were made in all cases,among them 35 cases underwent selective coronary angiography(SCA) as a comparision.These main segments(vessel diameter≥2 mm) in CTCA were compared with SCA,and≥50% reduction of vessel diameter was defined as significant disease.Results 85.1% of the coronary segments in CTCA were accessible and could accurately displaye the patency of the coronary arteries and the pathological changes in vessel walls.In comparison with SCA,the sensitivity and specificity were 86.5% and 95.1% respectively. When 46 coronary artery segments judged unevaluable were included in the analysis,the sensitivity was 78.0%(32/41).Conclusion 16-slice CTCA can display long segment of coronary artery and assess coronary artery disease with high accuracy,which has highly clinical value.

A pregnant female taken realgar because of superstition, which caused the baby congenital deafness. Auditory test indicated that bilateral auditory brainstem response (ABR) hearing threshold level was greater than 90 dB nHL and auditory steady state response (ASSR) hearing level ranging from 0.5 kHz to 4 kHz was beyond 110 dB HL. Temporal bone CT showed that bilateral cochlear and semicircular canal malformations, with internal auditory canal broadened.
Arsenicals ; adverse effects ; Evoked Potentials, Auditory, Brain Stem ; Female ; Hearing Loss, Sensorineural ; chemically induced ; congenital ; Hearing Tests ; Humans ; Infant ; Maternal Exposure ; adverse effects ; Pregnancy ; Semicircular Canals ; pathology ; Sulfides ; adverse effects ; Temporal Bone ; pathology

AIM: To analyze T cell clonality in patients with T cell acute lymphoblastic leukemia (T-ALL). METHODS: The complementarity determining region 3 (CDR3) size of 24 T cell antigen receptor variable β (TCR Vβ) region gene was analyzed in peripheral blood mononuclear cell (PBMC) samples from 6 T-ALL cases and 10 normal individuals by using reverse transcriptase-polymerase chain reaction (RT-PCR). The PCR products were further studied by genescan and sequencing analysis. RESULTS: Some TCR Vβ subfamily T cells display mono- or oligoclonal expansions in 3 cases of T-ALL, predominantly in Vβ2, Vβ3, Vβ6, Vβ9, Vβ21 or Vβ24, respectively. Polyclonal expansions of T cells were found in the other three cases, which could also be found in normal samples. CONCLUSION: A part of T cell acute lymphoblastic leukemia cells may arise from a clonal expansion of TCR Vβ subfamily T cell. This method may be useful for the detection of minimal residual disease in clinical study of the disease.

Objective To study on the effectiveness and reliability of endoscopic varicose vein ligation (EVL) combined with hand-assisted laparoscopic splenectomy (HLS) in portal hypertensive patients. Methods Retrospectively 15 cases of EVL combined with HLS were reviewed from June 2001 to October 2004. These patients with severe esophageal varicose and hypersplenism were adapted to perform endoscopic varicose vein ligation, then 1 -2 weeks after the varicose became milder or disappeared, hand-assisted laparoscopic splenectomy was conducted. Results The number of preoperative ligation was 2. 2 times in average. Esophageal varicose was completely disappeared in 11 and mild in 4. There were no postoperative complications, conversion and death in Hand-assisted laparoscopic splenectomy. The average postoperative count of platelets were (38-67) ? 106/L preoperatively raised to (89-310) ? 106/L postoperatively. In the follow up period (average 17. 6 months) , no varicose vein bleeding happened. Conclusions EVL combined with HLS is not only minimal invasive, but also a secure and effective measure for portal hypertension.

Objective To explore the effects and mechanisms of ursolic acid on drug-resistant SKOV3/DDP ovarian carcinoma xenografts in nude mice. Methods The models of drug-resistant SKOV3/DDP ovarian carcinoma on athymic mouse were established and randomly divided into four groups with intraperitoneal injection of different drugs: blank control (0. 9%sodium chloride solution ) , cisplatin ( 4 mg·kg-1 ·d-1 ) , ursolic acid low dose ( 30 mg·kg-1 ·d-1 ) , and high dose (60 mg·kg-1·d-1). All drugs were injected at volumes of 10 mL·kg-1 perday for 15 days. The tumor volumes were measured during the process of drug treatment every three days. After 14 days, The tumorigenic rate and tumor inhibition rate were calculated. RT-PCR and Western blotting were performed to detect the expression of Bcl-2 and Bax. Results Anti-tumor rates of cisplatin group , low dose ursolic acid group, and high dose ursolic acid group was 33. 3%, 43. 3%, and 71. 0%, respectively. Bcl-2 expressions were down-regulated, while Bax expressions were up-regulated in all three groups. Conclusion Ursolic acid has some anti-tumor activity on cisplatin-resistant human ovarian cancer SKOV3 /DDP cell in nude mice. It can inhibit tumor growth with dose-effect relationship. The mechanism may be to suppress the expression of anti-apoptotic factor Bcl-2 and to increase the expression of apoptosis-promoting factors Bax.