Objective To investigate the correlation of CYP2D6 gene polymorphism and serum tamoxifen (TAM) and its active metabolites (4-hydroxy tamoxifen,4-OH-TAM) in terms of prognosis of breast cancer patients.Methods The oral mucosas and serum were obtained from 200 breast cancer patients receiving oral TAM from Jan 2008 to Oct 2010.Real-time RT-PCR was used to determine CYP2D6* 10 gene polymorphism.The relationship between CYP2D6* 10 gene polymorphism and clinicopathological features and prognosis was assessed by Chi-square test and Cox proportional model.Serum TAM and 4-OH-TAM concentration were determined by liquid chromatography-trap mass spectrometry (LC-MS).Results Of 200 breast cancer patients,CYP2D6 * 10/* 10 homozygotes were found in 94 cases (47％),CYP2D6 wt/wt wild type in 48 cases (24％) and CYP2D6 wt/* 10 heterozygote in 58 cases (29％).The concentration of serum 4-OH-TAM in patients with CYP2D6 wt/wt wild type and wt/* 10 heterozygote was significantly higher than that in patients with CYP2D6 * 10/ * 10 homozygote (F =4.31,P =0.01).CYP2D6 gene polymorphism was not related to clinicopathological features (P ＞ 0.05).Logrank test showed that patient's disease-free survival with mutational CYP2D6 (mean,47.2 months) was significantly shorter than that in patients without mutational CYP2D6 (mean,51.2 months) (P =0.018).Cox proportional model showed that CYP2D6 genotype was related to disease-free survival (HR =2.755,95％CI:1.230 ～6.173,P =0.014).Conclusions CYP2D6 *10/* 10 genotype is related to curative effect of TAM on breast cancer patients,detection of CYP2D6 * 10/* 10 genotype helps improve the choice of TAM therapy.

Objective To study the therapeutic effect of ultrasonic guidance MTX local injection combined with mifepristone in the treatment of unruptured tubal pregnancy. Methods From January 2013 to February 2014,a total of 120 cases of unruptured tubal pregnancy were given injection of MTX 1 mg /kg in the capsule under ultrasonic guidance and oral administration of mifepristone 75 mg twice a day for 4 days. Results Ultrasound-guided puncture was successfully completed at first time in 1 12 cases and at second time in 8 cases.Four days after treatment,the β-hCG decreased by more than 15% in 80 cases (66.7%),had no significant change in 10 cases (8.3%),and increased by less than 15% in 30 cases (25.0%).The β-hCG decreased by more than 15% at the seventh day in 105 cases (87.5%),and had a further decline at the 14th day,and dropped to normal after a month,with abdominal pain relieved,vaginal bleeding stopped,and abdominal mass shrunk or disappeared.The treatment successful rate was 87.5%(105 /120).The hospitalization costs was 1208.5 -2722.6 yuan,with an average of 1859.4 yuan. Conclusion Under ultrasonic guidance,MTX local injection combined with mifepristone in the treatment of unruptured tubal pregnancy is a simple and safe method.

Gas Chromatography-Mass Spectrometry ; methods ; Humans ; Trichloroacetic Acid ; urine

Objective: To study the prevalence of antibody to citrullinated human fibrinogen(ACF) in rheumatic diseases and the diagnostic values in rheumatoid arthritis.Methods: Human fibrinogen was deiminated by the peptidylarginine deiminase(PAD) in the presence of Ca~(2+) in vitro.ACF was detected by ELISA in 352 patients with rheumatic diseases(183 RA,121 SLE and 48 OA) and 108 healthy controls.The sensitivity and specificity in RA were calculated and the correlations between ACF and the clinical and laboratory parameters were analysed by SPSS statistical software.Results: Compared with SLE(25.62%),OA(18.75%) and healthy control(2.78%) respectively,the patients with RA had a significantly higher level of ACF(67.21%,P

BACKGROUND: Presently, it is a certain preventive effect of local emplacement of various isolated materials during operation and postoperatively drug-controlled inflammatory reaction on adhesion between epidural and nerve root after laminectomy.OBJECTIVE: To study the preventive effect of chitosan and titanium net on epidural cicatricle adhesion after laminectomy.DESIGN, TIME AND SETTING: Randomized controlled animal study, which was performed in Guiyang Medical College from June to December 2005.MATERIALS: Eighty adult rabbits, weighing (2.0±0.2) kg, were used to establish vertebral plate resection models. Chitosan was provided by Shanghai Qisheng Biological Agent Industry Company, and titanium net by Guizhou Kelun Pharmacology Company Limited.METHODS: Eighty adult rabbits were randomly divided into four groups, including control group (0.5 mL saline), titanium net group (titanium net in the size of 1.0 cm × 0.8 cm was covered on defect region of vertebral plate and fixed on processus spinosus of upper and lower cone, bilateral muscles and soft tissues), chitosan group (2 mL chitosan), and chitosan + titanium net group (combination of chitosan and titanium net). Six rabbits were sacrificed in the 2nd and 4th weeks postoperatively, and eight rabbits were chosen as the samples in the 8th week.MAIN OUTCOME MEASURES: Morphological changes of cicatricle.RESULTS: Cicatricle was clearer in the control group. Titanium net could relieve peripheral cicatricle of dura mater and effectively isolate peripheral cicatricial tissue and spinal dura meter. Chitosan could remarkably prevent from cicatricle adhesion and inhibit inflammatory reaction. The combination of chitosan and titanium net could effectively inhibit proliferation of cicatricle surrounding dura meter.CONCLUSION: Association of chitosan and titanium net can effectively inhibit cicatricle adhesion surrounding dura meter after laminectomy.

It is complicated to decide the treatment plan of hopeless anterior teeth in esthetic zone due to severe periodontitis, periodontal-endodontic combined lesion or teeth trauma.The optional treatment plan for this kind of teeth includes retention after periodontal treatment, extraction and implant treatment, extraction and prosthodontic treatment and so on.To make an appropriate treatment plan, patients'' periodontal conditions, periodontal biotype, local anatomy, esthetic demand, economic condition and social psychological status should be comprehensively considered.A combine of periodontal, endodontic and orthodontic therapy may achieve a good treatment effect in hopeless anterior teeth with severe periodontal destruction, tooth extrusion and occlusal trauma.In this case, a 20-year-old female who presented with symptoms of bleeding on brushing and upper incisors loosening for 1 month came to the Department of Periodontology, Peking University School and Hospital of Stomatology.The clinical examinations revealed that the patient''s right upper incisor had signs of mobility (Ⅲ°), intrusion of 1-2 mm, and probing depth (PD) of 9-10 mm.The periapical radiograph showed that the alveolar bone of right upper incisor absorbed horizontally to the apex.And the patients showed Angle Ⅱ° malocclusion with Ⅱ° overbite in anterior teeth and maxillary protrusion.A diagnosis of aggressive periodontitis and Angle Ⅱ° malocclusion was made.The treatment of this patient lasts for 5 years which include periodontal initial therapy, orthodontic therapy, guided tissue regeneration (GTR) of right upper incisor and supportive periodontal therapy and the clinical result is fine.A hopeless upper incisor was successfully retained and the longtime clinical condition was stable.The strategy of retention of hopeless upper anterior teeth, the relationship of periodontal treatment and orthodontic treatment, and the indications of periodontal and orthodontic combined therapy were also discussed on the basis of this case.Generally, the positive factors in retention of hopeless teeth includes young age, absence of systemic conditions, strong motivation for maintaining the tooth, single root anatomy, integrated dentition, good response to cause-related therapy, intrabony alveolar bone defect, thick periodontal biotype, and regular supportive periodontal therapy.And in the progress of orthodontic therapy, regular supportive periodontal therapy and good plaque control is extremely important.

ATP-Binding Cassette Transporters ; metabolism ; Adenocarcinoma ; genetics ; metabolism ; pathology ; Adult ; Aged ; Blotting, Western ; Female ; Humans ; Immunohistochemistry ; Lung ; metabolism ; pathology ; Lung Neoplasms ; genetics ; metabolism ; pathology ; Male ; Middle Aged ; Neoplasm Staging ; RNA, Messenger ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction

This study aims to compare the urate-lowering response rate of febuxostat and allopurinol in gout patient using a model-based meta-analysis. The literature search identified 22 clinical trials of gout with a total of 43 unique treatment arms that met our inclusion criteria, and a total of 6 365 gout patients were included in the study. The response rates of allopuriol and febuxostat were characterized by Tmax model and Emax model respectively, and the effect of baseline serum uric acid (sUA) and patient type on the drug effect was tested. The results showed that allopurinol can reach an average maximum response rate of 50.8% while febuxostat can reach a 100% response rate within a very short time, and the ED50 was 34.3 mg. Covariate analysis revealed that baseline sUA has a negative effect on response rate of allopurinol, and a positive effect on the predicted ED50 of febuxostat. For patients who had shown inadequate response to prior allopurinol treatment, the average response rate was about half that of the allopurinol responder patients.
Allopurinol ; therapeutic use ; Febuxostat ; Gout ; blood ; drug therapy ; Gout Suppressants ; therapeutic use ; Humans ; Thiazoles ; therapeutic use ; Uric Acid ; blood

Objective To explore a safe and high efficiency way of gene transfection of autocrine motility factor(AMF) in order to provide experimental basis for transplantation of myoblasts carrying AMF gone. Methods Sprague Dawley rat myoblasts were cultured, purified, proliferated and immunohisto-chemically verified. Then, the myoblasts were transfected with AMF and eGFP (enhanced green fluores-cent protein) gene by FIV (feline immunodeficiency virus). Fluorescence microscope and laser scanning confocal microscope were employed to detect eGFP so as to verify positive transfection rate. Expression of AMF was detected by immunohistochemical method. Results Myoblasts with 98% purity could he ob-tained after two weeks of primary culture and purification. Positive transfection rate reached 90.4% when MOI (multiplicity of infection) was 100 (P <0.01). The transfected AMF gene could express normally. Conclusions Explant culture is a proper way in rat myoblast culture. Meanwhile, AMF gene can he effectively transfected into rat myoblast and well expressed via FIV.

Objective To determine the expression of glial fibrillary acidic protein(GFAP) and vascular endothelial growth factor(VEGF) in the hippocampus of rats with Alzheimer's disease(AD), and to determine the effect of butylphthalide on them and its significance. Methods Sixty male adult rats were randomly divided into a model group, a Butylphthalide group, and a control group. AD models were established by injecting β-amyloid protein 1-42 into the hippocampus of rats. Sixty days later,the rats were sacrificed and both sides of the hippocampus were sectioned for immunohistochemistry. Results Positive cells of GFAP in the hippocampus of the model group increased and the expression of VEGF decreased statistically, compared with the control group(P<0.01). The positive cells of GFAP in the hippocampus of the butylphthalide group decreased and the expression of VEGF increased significantly, compared with the model group(P<0.05). Conclusion Butylphthalide may protect the neuron-vascular unit of the hippocampus of Alzheimer model rats by inhibiting the expression of GFAP and increasing the expression of VEGF.