Objective:To evaluate the clinical value of ultrasound-guided core-needle biopsy (US-CNB) in the diagnosis of breast lesions under categories 4A to 4C of the second edition of the Breast Imaging Reporting and Data System (BI-RADS) ultrasound lexicon. Meth-ods:The pathological characteristics of 355 patients with breast masses who underwent US-CNB in the Tianjin Medical University Can-cer Institute and Hospital from March 2015 to October 2015 were retrospectively analyzed. Each patient was subjected to postopera-tive pathological examination to confirm diagnosis. Results:According to the US-CNB results, of the 355 patients, 235 were diagnosed with breast cancer, and 120 had benign lesions. Through postoperative pathological examination, 41 of the patients with benign le-sions were confirmed to have breast cancer. The specificity of the US-CNB was 100%in all the categories of breast masses. The sensibil-ities of breast masses under BI-RADS categories 4A, 4B, and 4C were 62.50%, 82.46%, and 89.73%, respectively. The accuracies of the US-CNB in 4A, 4B, and 4C were 84.62%, 87.01%, and 90.74%, correspondingly. Of the 41 patients with false-negative results, 14 had in-traductal carcinoma, 5 had intraductal papillary carcinoma, 3 had mucinous carcinoma, and 19 had invasive ductal carcinoma. Conclu-sion:US-CNB is a safe, reliable, and accurate early diagnostic method for breast masses under the 4B and 4C categories. However, the sensibility of US-CNB was extremely low in patients with breast masses under the 4A category. Thus, final diagnosis should be accom-plished by combining US-CNB with mammography, MRI, or other testing methods. Meanwhile, US-CNB is not recommended for pa-tients with intraductal papillary neoplasms diagnosed through ultrasonography.

Accidents ; Humans ; Hydrogen Sulfide ; poisoning ; Vegetables

Objective To detect and separate the side population cells(SP) from multiple myeloma (MM) cell lines PRIM8226,and to study their biological characteristics.Methods Fluorescence activated cell sorter (FACS) and Hoechst33342/PI dye were used to sort SP cells of PRIM8226.The multiplication capacity was tested by the growth curve and MTT test,SP cells proportion and the cell cycle were analyzed by flow cytometry,the colony-formtion ability was compared in terms of colony forming experiment,the expression of c-myc,KIF4,SOX2,OCT4 was tested by RT-PCR.The oncogenicity of the cells was analyzed by nude mouse transplantation tumor experiment in vivo.Results The ratio of SP cells in PRIM8226 was (1.78±0.89) ％.More SP cells in the G0 / G1 period,(44.34±3.09) ％ vs (28.49±1.97) ％,P ＜ 0.05,and fewer cells in S phase than MP cells,(38.83±3.69) ％ vs (51.49±4.62) ％,P ＜ 0.05.There were no difference in the expression of CD38 and CD138 between SP cells and MP cells,respectively,(78.5±8.5) ％ vs (82.0±4.0) ％ and (72.3±15.7) ％ vs (84.3±11.9) ％,P ＞ 0.05.Colony formation assay showed that the colony forming efficiency of the SP cells was higher than the MP cells,single cell clone diameter,the number of clone forming,the clone formtion rate were significantly higher than MP cells,0.280±0.016 vs 0.118±0.019,1 722±127 vs 358±14,(86.1±3.46) ％ vs (17.9±1.88) ％,P ＜ 0.05.The mRNA expression levels of c-myc,KIF4,SOX2,OCT4 in SP cells were higher than those in MP cells,c-myc (29.90±3.73) ％ vs (16.84±2.35) ％,KIF4 (29.97±2.89) ％ vs (19.06±1.23) ％,SOX2 (40.00±4.58) ％ vs (16.62±2.09) ％,OCT4 (32.96±0.92) ％ vs (23.27±0.92) ％,all P ＜ 0.05.Nude mouse transplantation tumor experiment in vivo showed the oncogenicity of the SP cells was more stronger than MP cells (5×103 vs 5×l05).Conclusion There are notably difference in the cell cycle,colony formation assay,the mRNA expression levels and oncogenicity,but no difference in the expression of CD38 and CD138,the proliferation ability between SP cells and MP cells.

The respective sense and antisense oligodeoxynucleotides and their phosphorothiods, targeting at the bcr/abl, were the hallmark gene of Chronic Myelogenous Leukemia( CML) and c-myb correlates with CML. K562 cells, derived initially from a patient of CML blast crisis, were incubated with bcr/abl antisense oligodeoxynucleotides asODN or c-myb asODN or with both asODN in combinalion. All kinds of asODN could not only significantly inhibit K562 cells survival with the highest inhibitory rate of 64.7%?3.2%, but also dramatically inhibit DNA synthesis and the highest inhibitory rate was 85. 8 %?4.1%, decrease bcr/abl mRNA level almost completely and induce apoptosis significantly. The inhibition effect of antisense oligodeoxynucleotides phosphorothiodes s-asODN was stronger than that of unmodified asODN. The inhibition of the combination of bcr/abl and c-myb asODN was stronger than that of anyone alnoe. All the inhibitions exhibited in sequence-and time-dependent manner. We concluded that bcr/abl in pathogenesis of CML not only increased CML cells proliferation rate, but also decreased CML cells apoptosis rate. c-myb may participate in CML mainly by regulating bcr/abl. Trie results indicated that the modified asODN and multiple asODN targeting several oncogenes may advance to antisense gene therapy.

Objective To establish a method for the determination of berberine hydrochloride in Siji Sanhuang capsules(SSC).Methods The RP-HPLC method was performed on Agilent Hypersil ODS column(4.6 mm?150 mm,5 ?m).Acetonitrile and 0.05 mol/L NaH2PO4 water(adjust pH to 3 with H3PO4)were used as the mobile phase(30 ∶70),detection wavelength was at 270 nm,the flow rate was 1.0 mL/min and the column temperature was at 25 ℃.Results In the range of 0.094 to 0.470 ?g,berberine hydrochloride had a good linearity with chromatograph peaks area(r=0.998 3),the average recovery ratio was 98.5 %(n=5),and RSD=2.3 %.Conclusion This method is simple,effective and with a higher sensibility and stability.The method can be used to control the quality of SSC effectively.

Objective To explore changes of toll like receptor(TLR) 2, 4 in peripheral blood mononuclear cells (PBMC) in acute abdomen patients with systemic inflammatory response syndrome(SIRS) and their significance. MethodsA clinical study was done on 103 patients in which 65 were with SIRS. The mRNA expression of TLR2, 4 were detected by RT PCR; the expression of TNF ? and IL 6 were observed by ELISA; the correlation between TLR2, 4 mRNA, the level of TNF ? and IL 6,and the clinical course was evaluated. ResultsTLR2 mRNA, TNF ? and IL 6 were upregulated markedly on the first day of hospitalization, then decreased gradually; TLR2mRNA maintained on high level till the 5th day. The expression of TLR2, 4 mRNA was positive correlated with the level of TNF ? and IL 6, and the length of stay. TLR2, 4 mRNA expression increased in patients with multiple organ failure. ConclusionsIn acute abdomen patients with SIRS, the expression of TLR2, 4 of PBMC increased markedly, indicating its important role in the pathogenesis of SIRS.

BACKGROUND:The aim of present study is to demonstrate that volatile oil of flos magnoliae biondii pamp(VOMbp) possess anti-immunology inflammatory property.OBJECTIVE:To explore the effect of VOMbp on adjuvant arthritis in rats.DESIGN:Grade sampling,randomized controlled quantitative analysis.SETTING:Teaching and Researching Department of Pharmacology,Chengdu University of Traditional Chinese Medicine.MATERIALS:This study was carried out at the Teaching and Researching Department of Pharmacology,Chengdu University of Traditional Chinese Medicine from December to April in 1999. Totally 120 Wistar rats were involved.METHODS :Wistar rats were randomly divided into 4 groups :model control group, 0.28 mL/kg and 0.14 mL/kg VOMbp group,and 25 mg/kg dex-amethasone group. Allergy were induced in all rats through intra-cutaneous injection of Freund's adjuvant (0.1 mL/rat)at metatarsus so as to establish multiple arthritis model in rat. According to different dosage,the experiments were carried out in three batches with 10 rats in each group.Rats in the first batch were given VOMbp three days before inducing allergy for consecutwe 3 days,in order to observe the influence of VOMbp on adjuvant induced acute non-specific inflammatory;Rats in the second batch were given VOMbp on the 8th day sensitization allergy for consecutive 7days so as to explore the protective effect on secondary pathological changes;rats in the third batch were administratedon the 19th day after sensitization for consecutive 7 days for study in therapeutic effect on sec ondary pathological changes. Meanwhile foot tumefaction and the level of prostaglandin E2in ankle arthritis were observed.MAIN OUTCOME MEASURES: ① Effect of VOMbp on the adjuvant induced acute non-specific inflammatory. ② Preventive effect on adjuvant arthritis. ③ Therapeutic effect on adjuvant arthritis.RESULTS :① VOMbp could significantly suppress the primary foot tume faction. ②Moreover VOMbp of preventive dosage could most significantly suppress the secondary arthritis tumefaction [(0.231±0.065)mL of 0.28 mL/kg group and ( 0.206±0.082 ) mL of 0.14 mL/kg group] ,accompanied by PG-E2 decrement in tumefaction tissues [(0.133 2±0.057 2), (0.138 5 ±0.042 6)OD278nm correspondingly].③ No obvious effect of VOMbp of therapeutic dosage on secondary inflammatory tumefatcion of arthritis could be observed in 0.14 mL/kg group,but obvious decrement of prostaglandin E2 could be observed in edema tissue;While 0.28 mL/kg VOMbp exerted most significant or significant influence on above parameters. CONCLUSION:VOMbp possess inhibiting effect on Freund's adjuvant induced primary foot tumefaction and secondary arthritis,with the preventive effect better than therapeutic effects.The therapeutic effect was proved better in higher dosage group.

Objective This paper aims to use components as the key factors to explore the feasibility of evaluation method about the learning effect of Web-based PBL.Methods We distributed a questionnaire to 101 students of clinical class of 2007 and 2008 grade in Guangzhou Medical University,and electronically distributed after 2 weeks.Cranach's α coefficient WaS used to evaluate intrinsic consistency reliability of the questionnaire.We applied principal axis factoring to extract components and to explain components which were orthogonally rotated by varimax.Multi-factor regression model Was simulated with key factors and the model's performance of fitting WaS tested.Results Multi-factor regression mode(WPBLSUM)=0.545 Collective collaboration capabilities+0.202 Self-learning and quest skills+0.137 linical reasoning and problem-solving capabilities+0.116 memorizing and understanding of medical knowledge.The coefficient of determination R2Was 0.998 and the corrected coefficient of determination R2Was 0.998.indicating that the model's fit results are obvious.Conclusion This paper demonstrates that using components as the key factors to simulate and assessing the Web-based PBL learning effect is feasible,which assesses the Web-based PBL learning effect well from four different aspects.

Objective To investigate the clinic effect of using three-dimensional conformal radiotherapy combining with Sanyangxuedai in treating advanced non-small cell lung cancer.Methods Grouping 100 patients with advanced non-small cell lung cancer randomly into a control group and a treatment group,with 50 patients in each.The control group was treated with three-dimensional conformal radiation therapy,the treatment group was treated on the basis of the control group with a ioint Sanyangxuedai.The clinical effects were compared in the two groups.Results The three-dimensional conformal radiotherapy combining with Sanyangxuedai had more better treating indications than using three-dimensional conformal radiotherapy only and the results had statistical significances(χ~2=12.01,P＜0.05).Conclusion The three-dimensional conformal radiotherapy combining with Sanyangxuedai had beaer clinical efrect in treating advanced non-small cell lung cancer.

Studies have indicated approximate 50% cases of coronary heart disease are closely associat-ed with genetic factors and it. It is well evidenced that lipid abnormality is the important risk factors of coronary heart disease. Many single nucleotide polymorphisms that influence levels of blood lipids were found and con-firmed in recent years. The article summarized the single nucleotide polymorphisms associated with the level of lipid.