Objective:To analyze the expression of the four mismatch repair genes protein (hMLH1,hMSH2,hMSH6 and hPMS2) of patients with colorectal cancer and its clinical significance.Methods:177 cases of patients with colorectal caner in the Third Affiliated Hospital of Guangzhou Medical University from January 2013 to December 2015 were randomly selected.Tested the expression of the hMLH1,hMSH2,hMSH6 and hPMS2 by immunohistochemistry,the relationship between protein expression and clinical parameters was analyzed.Results:Among 177 cases ofcolorectal cancer tissue,the deletion rate ofhMLH1 protein was 6.2％ (11/177),the deletion rate of hMLH2 protein was 4.0％(7/177),the deletion rate of hMSH6 protein was 1.7％(3/177),the deletion rate of hPMS2 protein was 8.0％(14/177),the sum of the four values accounted for 19.8％(35/177) of all cases of colorectal cancer.The loss of expression of the four mismatch repair genes protein were correlated to tumor location (P＜0.05),besides,the loss of expression of the hMLH1 and hPMS2 protein were correlated to degree of tumor differentiation (P＜0.05),he loss of expression of the hMSH6 protein were correlated to depth of tumor invasion(P＜0.05);But the loss was not correlated to age,sexes,lymph node metastasis and distant metastasis(P＞0.05).Conclusion:The expression of loss phenomenon with mismatch repair protein appears in part of colorectal cancer,the loss phenomenon with mis match repair protein were correlated to tumor location and degree of tumor differentiation.Mutations of four genes in hMLH1,hPMS2,hMSH6 and bMSH2,to provide a reference value for the clinical judgment of prognosis and to develop a treatment plan.

Objective: To investigate the impact of thyroid hormone on atrial ifbrillation (AF) prevalence in patients with chronic heart failure (CHF).
Methods: A total of 322 non-valvular heart disease CHF patients treated in our hospital from 2011-0-01 to 2012-10-01 were retrospectively studied. Based on previous history and the ECG at admission, the patients were divided into 2 groups: AF group,n=187 and Sinus rhythm group,n=135. The proifle of serum levels of free thyroxine (FT4), free triiodothyronine (FT3), hyroid stimulating hormone (TSH) and LDL-C were examined within 24 hours of admission; 12 lead ECG and echocardiography were conducted to analyze the related factor for AF occurrence.
Results: Compared with Sinus rhythm group, AF group had increased FT4 level as 14.52 (12.74, 15.85) pmol/L vs 13.11 (11.68, 14.85) pmol/L,P<0.001, while FT3 level was similar between 2 groups as 4.06 (3.76, 4.44) pmol/L vs 4.1(3.80, 4.52) pmol/L,P=0.250. Spearman related analysis indicated that FT4 level was positively related to left atrial dimension (LAD) (r=0.134,P=0.016), FT3 level was positively related to LDL-C (r=0.235,P<0.001) and negatively related to age (r=-0.268, P<0.001). Taking FT4 as the continuous variable, Logistic regression analysis indicated that FT4 level [OR=1.227, 95% CI (1.112-1.354),P<0.001], LAD [OR=1.154, 95% CI (1.105-1.205),P<0.001], age [OR=1.038, 95% CI (1.012-1.064),P=0.003], CHF duration [OR=1.111, 95% CI (1.021-1.209),P=0.015], LDL-C level [OR=0.689, 95% CI (0.493-0.963),P=0.029] were related to AF prevalence in CHF patients.
Conclusion: High serum level of FT4 may increase the risk AF occurrence in CHF patients.

OBJECTIVE: To explore the efficacy of the cognitive behavior therapy (CBT) for the treatment of chronic subjective tinnitus. METHOD: One hundred and fifty-seven patients were randomly divided into two groups. Sixty-eight patients of the control group were treated by masking therapy; and the other 89 patients of the experimental group were treated by CBT therapy. The score of tinnitus handicap inventory (THI) was utilized to analyze the treatment efficacy in the two groups respectively. RESULT: The effective rate assessed by of THI score in the experimental group was not significantly higher than the control group 2 months after treatment (P > 0.05), but was significantly higher than the control group 6 months and 12 months after treatment (P < 0.05 respectively). CONCLUSION The CBT therapy contributed to achieve rapid adaptation of tinnitus feeling, which shows great value of further clinical application.
Cognitive Behavioral Therapy ; Humans ; Tinnitus ; psychology ; therapy ; Treatment Outcome

BACKGROUNDTo study the expression of CD44v3 and its prognostic value in non-small cell lung cancer (NSCLC).

METHODSCD44v3 expression was detected in 52 NSCLC tissues and 12 normal pulmonary tissues by reverse transcription-polymerase chain reaction (RT-PCR) and immunohistochemistry (SP method).

RESULTSThe positive expression rate of CD44v3 in NSCLC was 57.7% (SP method) and 71.2% (RT-PCR), respectively. The positive rate of CD44v3 in squamous cell carcinoma was significantly higher than that in adenocarcinoma (P < 0.01). Higher expression of CD44v3 was demonstrated in poor differentiation compared with moderate and well differentiation (P < 0.05). The expression of CD44v3 was much higher in patients with lymph node metastasis than that in those without lymph node metastasis (P < 0.05). The expression rate of CD44v3 was remarkably higher in stage III than that in stage I-II. Multi-variate Logistic analysis showed the expression of CD44v3 and p-TNM stage were significantly prognostic factors (P < 0.05).

CONCLUSIONSOverexpression of CD44v3 is very common in lung cancer tissues. Detection of CD44v3 expression may be helpful to predict the prognosis of lung cancer patients.

Objective To investigate the influences of different matrix stiffness on proliferation ability and glucose metabolism of hepatocellular carcinoma (HCC) cells and to explore the correlation between metabolism and biological behavior changes of HCC cells resulted from the stiffness of extracellular matrix (ECM)．Methods The proliferation changes of HepG2 cells cultured on matrix with different stiffness were detected by CCK-8 assay and cell count assay. 2-NBDG and flow cytometry were used to detect the effect of matrix stiffness on glucose uptake. Real-time fluorescence quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression level of Glut1. Then, 2-DG was used to inhibit glycolysis, and the influences of matrix stiffness on proliferation of HepG2 cells were detected. Results The proliferation ability, glucose uptake and the expression of Glut1 of HepG2 cells increased with the matrix stiffness increasing. When glycolysis was inhibited, the proliferation ability of HepG2 cells grown on matrix with different stiffness was similar. Conclusions The mechanical microenvironment had an important effect on proliferation of HCC cells; matrix with a larger stiffness might promote proliferation of HCC cells through regulating glycolysis. The research findings provide a corresponding experimental basis for the clinical treatment of HCC cells and drug development targeting glucose metabolism.

Objective To investigate the prevalence of metabolic syndrome(MS)and its components among people aged over 15 years in Guangxi Zhuang Autonomous Region and to compare the difference between Zhuang and Han populations.Methods Adopting cluster sampling,a survey of diabetes mellitus was conducted in Guangxi from 2003 to 2005.A total of 27 240 subjects aged over 15 years with complete data,including background information of each individual,blood pressure,lipid profile,plasma glucose,blood uric acid and fasting insulin were analyzed in this study.The prevalence of MS and its components were analysed in Han and Zhuang Chinese in Guangxi.The criteria of International Diabetes Federation(IDF)in 2005 and the China Diabetes Society(CDS)in 2004 were applied for diagnosis.Results(1)The crude prevalence rates of MS according to IDF definition were 13.15%in total,12.41%in male and 14.11%in female respectively.The age- standardized prevalence rates of MS(according to the population composition in China in 2000)were 7.66%in total,7.26%in male and 8.81%in female.The crude prevalence rates of MS according to CDS definition were 10.75%in total,13.45%in male and 7.28%in female respectively and the age-standar-dized prevalence rates of MS were 5.9%in total,7.21%in male and 4.31%in female.The prevalence of MS in total,male and female was increasing with age(P