OBJECTIVETo explore the possible mechanism of curcumin in inducing the apoptosis of breast cancer cell MDA-MB-231.

METHODCurcumin of different concentrations at 0, 10 25, 50, 100, 150, 200 micromol x L(-1) were used to intervene breast cancer cells MDA-MB-231 for 24 hours. MTT was used to observe its effect on the proliferation of breast cancer cells. The flow cytometry was used to detect its effect on the cell apoptosis. The real-time quantitative PCR and Western blot was used to assess the expression levels of GRP78 and CHOP in breast cancer cells.

RESULTCurcumin could inhibit the proliferative ability of breast cancer cells by inducing them in a concentration-dependent manner. Curcumin could significantly increase the expression levels of GRP78 and CHOP in breast cancer cells.

CONCLUSIONCurcumin could induce the apoptosis of breast cancer cells MDA-MB-231 by activating endoplasmic reticulum stress.

Apoptosis ; drug effects ; Breast Neoplasms ; drug therapy ; genetics ; metabolism ; physiopathology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Curcumin ; pharmacology ; Drugs, Chinese Herbal ; pharmacology ; Endoplasmic Reticulum Stress ; drug effects ; Female ; Heat-Shock Proteins ; genetics ; metabolism ; Humans ; Transcription Factor CHOP ; genetics ; metabolism

In order to explore the possibility of Xihuangwan (XHW)'s application in assistant therapy in patients with breast cancer, short- and long-term clinical efficacy were assessed in this study. Eighty and four patients with advanced breast cancer were selected in this study. They were divided into control group and treatment group randomly and evenly. All patients received surgical treatment followed by chemotherapy regimen composed of PTX + EPI + CTX (TEC regimen). Treatment group received additional assistant treatment of XHW. Short-term clinical efficacy was assessed by KPS, lesion stabilizing rate and side effects in 3-month follow-up study. Long-term clinical efficacy was assessed by overall survival (OS) and free-progression survival (FPS). KPS increased significantly after treatment in all patients (P < 0.05), more significantly in treatment group than in control group after treatment (P < 0.05); lesion stabilizing rate in treatment group increased significantly in treatment group than in control group (92.86% vs. 85.71%, P < 0.05); there was no significant difference between control group and treatment group in occurrence of side effects. Compared with control group, OS and FPS increased significantly in treatment group. Data in this study showed that XHW was suitable in treatment of advanced breast cancer due to its satisfactory short-term and long-term therapeutic effects.
Breast Neoplasms ; drug therapy ; pathology ; Disease-Free Survival ; Drugs, Chinese Herbal ; adverse effects ; therapeutic use ; Female ; Follow-Up Studies ; Humans ; Middle Aged ; Neoplasm Staging ; Retrospective Studies ; Time Factors ; Treatment Outcome

Objective To explore the relationship between the carotid artery atherosclerotic(CAA) plaque and its risk factors and cerebral infarction(CI).Methods 196 patients with CI(CI group) and 104 patients without CI(non-CI group) were examined by color Doppler ultrasonography on their carotid artery.The relationships were analysed between the CAA plaque with age,sex,accompany disease,smoking and alcohol drinking of all the pataints.Also,the distribution of different grade plaque was observed in each group.Results The incidences of CAA plaque were higher in patients with aged,accompainied hypertension,diabetes,abnormal blood-lipids and smoking(P

ObjectiveTo compare the effects of streamlined liner pharynx airway(SLIPA) and endotracheal intubation in the radical mastectomy under general anesthesia,and to evaluate the efficacy and safety.MethodsSixty patients scheduled for radical mastectomy were randomly divided into 2 groups.SLIPA group( S,n =30 ) and endotracheal intubation group(T,n =30).The data were kept regarding the insertion time and successful rate,MAP,HR,BIS were recorded at 6 time points:before induction ( T0 ),during SLIPA incursion or trachel intubation ( T1 ),3min after intubation( T2 ),before extubation( T3 ),after extubation ( T4 ),3 min after extubation ( Ts ).Ppeak,PetCO2 and SpO2 were measured after successful airway placement at 10min,30min,60min and to observe intraoperative and postoperative throat complications.ResultsThe time of endotracheal intubation group is significantly longer than SLIPA group (P ＜0.05).In group T,MAP and HR at T1,T2,T4,T5 were higer than at T0 and the same time points in group S(all P ＜ 0.05 ).No regurgitation and aspiration was found in two groups ( all P ＞ 0.05 ).The incidence of complicaton in group T is significantly higher than that in group S ( all P ＜ 0.05 ).ConclusionSLIPA is easier placement,safety and efficacy when it is used for the radical mastectomy under general anesthesia without significant influences on hemodynamics and fewer complications of throat after operation.

Bibliometrics ; Biochemistry ; Biotechnology ; China ; Journal Impact Factor ; Periodicals as Topic ; statistics & numerical data ; Science

Objective:To consolidate ten years of clinical experience on the application of breast fiberoptic ductoscopy (FDS) in breast intra-ductal lesion. Methods:The clinical data of 1 368 cases of patients with nipple discharge were retrospectively collected and analyzed. Results:Significant differences were observed in the FDS diagnoses of patients with nipple discharge. The rates of tumor de-tection by FDS diagnosis were significantly higher when bloody and serous nipple discharge was used rather than milky and watery nip-ple discharge. For non-tumor nipple discharge, local drug perfusion via FDS was an effective treatment. A total of 303 patients had tu-mor resection or segmentectomy under localization via FDS, and 44 had segmentectomy after breast duct infusion of methylene blue. The diagnostic rate of localization via FDS (97.0%) was higher than that of breast duct infusion of methylene blue (86.4%). Conclu-sion:FDS is an accurate method for diagnosing patients with nipple discharge. In addition, it is also a good local drug perfusion method for patients with breast inflammatory nipple discharge ductoscopy. For patients with tumorous nipple discharge, localization via FDS can help improve the detection of the lesions, which can be removed by surgery.

Objective To investigate the treatment effect of fasudilon inflammatory bowel disease ( IBD) in rats. IBD was induced by using an enema of trinitro-benzene-sulfonic acid ( TNBS ) . Methods A total of 30 female SD rats were randomly divided into normal control group (0. 9% sodium chloride for induction and 0. 9% sodium chloride for treatment), model control group (TNBS for induction and 0. 9% sodium chloride for treatment), and fasudil group (TNBS for induction and fasudil 4. 5 mg·kg-1 for treatment). The disease activity index(DAI) was estimated 14 days later. The MPO activity, TNF-αcontent and IL-1β level in the colon were investigated, while Rho kinase expression was detected by Western blot. The pathological changes were detected by HE staining. Results The DAI of the normal control, model control, and fasudil groups were:(0. 00±0. 00),(7. 76±1. 32),and (3. 20±0. 98), respectively. MPO activity was (59. 32±9. 08),(96. 65±16. 57),and (69. 58±11. 40) U·g-1, respectively. TNF-α was (0. 15±0. 11),(0. 28±0. 22),and (0. 20±0. 62) ng·mL-1, respectively. IL-1β content was (0. 04±0. 01),(0. 08±0. 02),and (0. 06±0. 02) ng·mL-1, respectively. Rho kinase expression was 0. 713± 0. 170,1. 083±0. 210,and 0. 907±0. 260, respectively. Conclusion Fasudil excerts protective effects against IBD in rats by lowering the expression of Rho kinase and attenuating the release of inflammatory mediators, suggesting that Rho kinase could be a new therapeutic target for IBD.

Objective To investigate the application value of MR rthrography (MRA) in the diagnosis of acetabular labral tears. Methods Fifteen patients with a high degree of suspected acetabular labral tears received fluoroscope-guided injection of the contrast media into the hip joint ( hip arthrography) and fat-saturated spin-echo T1-weighted images were obtained in the coronal, sagittal, oblique-axial and radial planes. Hip arthroscopy was performed on 12 of them. Results Labral tears which were diagnosed in 11 patients by hip MRA were confirmed at hip arthroscopy. One patient showed no MRA indication of labral tear, also showed normal on arthroscopy. Tear in the anterior-superior quadrant 10 cases of 12 joints ( 12/13), posterior-superior quadrant 1 case of a joint (1/13). In 11 patients who underwent arthroscopy, hip MRA diagnosed 3 (3/13) joints labral tears in coronal planes, 10 (10/13) joints in sagittal planes and 13 (13/13) labral tears in axial-oblique and radial planes. In 15 patients with 20 hip joints, 5 cases 6 joints (6/20) with normal acetabular sublabral sulcus were performed. Conclusions MR arthrography of hip is a reliable method in the diagnosis of acetabular labral tears. Scanning method should be included fat-saturated spin-echo T1-weighted images in sagittal and oblique-axial planes or sagittal plus radial planes. The diagnosis of tor posterior-inferior quadrant should pay attention to the existence of a normal variation.

Trehalose is a naturally occurring non-reducing disaccharide. This sugar has been known as a protector of biomembrane and macromolecules. And it has been widely used in foods, medicines, cosmetics. Trehalose synthase (TreS) is an intramolecular transglycosylase. It can catalyze the conversion of maltose into trehalose in one step. As the simple protocol and cheap substrate, it is very prospect in the industrial production. Here we have discussed the properties, catalytic mechanism and gene-engineering of TreS, and also proposed some solutions to its present research problems.

Objective To investigate the function of metalloproteinase 2 (MMP 2) and tissue inhibitor of metalloproteinase 2 (TIMP 2) in neonatal acute lung injury(ALI) caused by LPS in rats. Methods Eighty eight newborn rats of 7 days were randomly divided into eight groups: control, 0.5 h, 1 h, 2 h, 4 h, 8 h, 16 h, 24 h after LPS was injected. The changes of lung pathology in newborn rats were observed and the changes of MMP 2 and TIMP 2 expression were measured by immunohistochemistry and RT PCR. Results Pulmonary hemorrhage was seen in newborn rats caused by LPS. The expression of MMP 2 mRNA and protein were 0.523?0.030 and 126.20?17.98; The expression of MMP 2 mRNA increased and the highest level was at 4 h(0.826?0.567, t=3.77, P