A study on the Na+-K+ ATPase activity of erythrocyte membranes was carried out in 34 NIDDM patients without complications and in 20 age-matched normal control subjects. The Na+-K + ATPase activity was decreased in the NIDDM patients as compared with that of the normal subjects. There was a positive correlation between the Na+-K+ ATPase and the serum insulin peak level as well as the area under curves of insulin releasing test. There was no correlation between the Na+-K+ATP ase and the fasting blood glucose or glycohemoglobin level. The mean value of erythrocyte su-peroxide dismutase (SOD) was decreased in the NIDDM patients as compared with that of normal subjects. But the Na+-K+ ATPase activity was not correlated with SOD. The result suggests that Na+-K+ATPase activity in the NIDDM patients is regulated by the serum insulin level. Insulin treatment would be useful for these patients to increase the activity of Na+-K+ATPase and prevent chronic complications.

Objective To detect the infection rate of human papillomavirus (HPV) types in keratoacanthoma (KA) tissue, and to study the distribution of HPV DNA-positive cells. Methods In situ hybridization was performed to detect HPV subtypes 6/11, 16/18, and 31/33 in paraffin-embeded tissue samples from 46 patients with KA and 34 nomal human controls. Results Mucosal HPV DNA was positive in 31 (67.39%)of the 46 KA samples, and mixed infection rate of HPV amounted to 83.87% (26/31) in these positive samples.The DNA of tested mucosal HPV types existed mainly in episomal status. Positive reactions were observed within or at the edge of nuclei. HPV infected cells showed a stripe-, slice-like or focal distribution mainly in superficial middle lamina of spinous layer at the bottom or lateral margin of crater-shaped epidermal depression. No mucosal HPV DNA was noted in normal control samples. Conclusions Compared with normal controls, patients with KA are infected with mucosal HPV at a higher frequency, and mucosal HPV DNA mainly exists in episomal status in KA tissue, hinting that HPV infection play a certain role in the pathogenesis of KA.

Objective To develop the scale to measure online intimate relationship and test its validity and reliability for college students.Methods A total of 1 105 subjects were recruited in this investigation for 6 times.Based on literatures,open-ended questionnaire investigations,semi-structured interview and experts' opinions,item analyses,exploratory factor analyses,validity and reliability analysis were conducted to develop the scale.Results The self-made scale showed a second-order structure,including intimacy,passion and commitment dimension.Confirmatory factor analysis showed that the model had good fit (χ2/df=3.47,GFI=0.92,NFI=0.90,CFI=0.92,TLI=0.90,IFI=0.92,RMSEA=0.08).The 3 dimensions had good internal reliability with Cronbach's α coefficients from 0.73 to 0.89 and retest reliability coefficients from 0.80 to 0.91.In addition,the scale had good external validity and convergent validity.ConclusionThe self-made scale has acceptable reliabilities and validities,which can be used to measure online intimate relationship for college students.

The experiment was carried out on Hepatoma-22 ascitic tumor cells of mice in vivo. Daily injection of 2 mg cAMP with 1 mg theophylline into the peritoneal cavity for 7 and 8 days, then these animals were sacrificed. We found that cAMP with theophylline inhibit the growth of tumor cells of Hepatoma-22 ascitic and decrease the activity of Mg~(++), (Na~+-K~+)-ATPase and cAMP-PDE on the cell surface of H-22 tumor cells of mice by cytochemical electron microscopy. Exogenic cAMP and theophlline decrease the activities of these enzymes and elevate the intracellular content of cAMP. These may indicate the reversion transformation of the cancer cell.

The experiment was carried out on cultured human stomach glandular carcinoma (SGC-7901 cell line). We previously reported the cytochemical changes of (Na~+-K~+)-ATPase activity and the changes of microvilli. We here studied the relationship among the cAMP, cAMP-PDEase, Mg~(++)-ATPase activity, the cell growth and differentiation. Cells were exposed to Immol/L cAMP together with 1 mmol/L theophylline. We showed cAMP specific fluorescence by immunocytochemical method, Mg~(++)-ATPase and cAMP-PDEase activity by cytochemical methods. We found that cAMP with theophylline not only inhibited the growth of these SGC-7901 cells as shown by our previous result, but also decreased the activity of Mg~(++)-ATPase and 3', 5'-cyclic monophosphate phosphodiesterase. The result indicates that exogenous cAMP can inhibit 3', 5'-cAMP-PDEase and Mg~(++)-ATPase activity and increase cAMP level in cell, and cAMP regulated the growth and differentiation of SGC-7901 cell line

Objective To analyze the effect of self efficiency,social support and coping style on the psychological resilience.Methods A total of 386 patients with cerebral infarction in a grade 3A hospital of Tangshan City were served as the subjects.The resilience scale,self efficiency scale,social support scale and medical coping questionnaire were taken as the survey tools.The Pearson correlation analysis,multiple linear regression model and structure equation model(SEM) were applied.Results The resilience score was (59.72 ±12.17) points,the resilience was positively correlated with the self efficiency,social support,facing coping style and avoidance coping style(P＜0.01),and negatively correlated with the surrender coping style(P＜0.01).The total efficiency coefficients of self efficiency sensation,subjective support,facing coping style and surrender coping style for affecting the resilience were 0.720,0.264,0.121 and-0.092 respectively.Conclusion Self efficiency,social support and coping style have significant influences on the psychological resilience.

Objective To assess the diagnostic significance of T cell receptor gamma gene rearrangemerits in mycosis fungoides (MF), so as to develop a sensitive diagnosis tool. Methods A total of 50 specimens were collected, including 33 skin lesion specimens and 2 lymph specimens from 30 patients with MF,15 skin lesion specimens from 15 patients with inflammatory dermatoses. PCR was performed with specific primers targeting TCR V gamma 8, 9, 10, 11 to detect T cell receptor gamma gene rearrangement. Results Monoclonai rearrangements of TCR gene was observed in 88% (29/33) of specimens from patients with MF and 33% (5/15) of samples from patients with inflammatory dermatoses. Conclusions The detection of TCR gene rearrangements, as an ancillary test, is useful in the diagnosis and differential diagnosis of MF.

Objective:To explore the mediating effect of self-identity on the relationship between interpersonal adaptation and the tendency of mobile phone addiction in college students.Methods:Totally 498 college students (217 males and 281 females) were selected and assessed with the College Student Interpersonal Adaptability Inventory (CSIAI),Mobile Phone Addiction Tendency Scale (MPATS) and Personal Identity Scale(PIS).The bias-corrected percentile bootstrap method was used to analyze the mediating effect of self-identity between interpersonal adaptation and mobile phone addiction tendency in college students.Results:The MPATS scores of male students were significantly lower than female students [(2.6 ± 0.7) vs.(2.7 ± 0.6),P ＜ 0.05].The MPATS scores were negatively correlated with the scores of CSIAI and PIS (r =-0.31,-0.36,Ps ＜ 0.01),the CSIAI scores were positively correlated with the PIS scores (r =0.50,P ＜0.01).Self-identity played a partly mediating role between interpersonal adaptation and mobile phone addiction tendency,which accounted for 43.6％ of the total effect.Conclusion:It shows that the mobile phone addiction tendency may be related to interpersonal adaptation and self-identity,interpersonal adaptation could affect the mobile phone addiction tendency through the self-identity.

Objective To establish a double-antibody sandwich enzyme linked immunosorbent assay (DAS-ELISA) for the rapid detection of germ tube-specific antigens of Candida albicans,and to evaluate its specificity and sensitivity.Methods A DAS-ELISA was established with the monoclonal antibody McAb03.2C1-C2 as the primary antibody,and horseradish peroxidase (HRP) labeled McAb03.2C1-C2 as the secondary antibody.The established assay was used to detect germ tube-specific antigens of Candida albicans in sera from 5 patients with systemic Candida albicans infection and from 6 rabbit models at 12,24,48,72hours,on week 1,2 after infection with Candida albicans.Results A good liner relationship was observed between the absorbance value at 495 nm and antigen concentrations when the titer of McAb03.2C1-C2 was 1 ∶ 4000 and the concentration of coated antigen varied from 1.25 to 40 μg/ml.The specificity and sensitivity of the DAS-ELISA were 95％ and 92％ respectively in the detection of germ tube-specific antigens in the rabbit models.The results of detection with DAS-ELISA in serum specimens from the patients were consistent with those with the routine method.Conclusions A DAS-ELISA is primarily established for the rapid detection of germ tube-specific antigens of Candida albicans,and has shown a satisfactory sensitivity and specificity in the animal model experiment.

Among several intraoral distalizing devices,the pendulum appliance is one of the most commonly used noncompliance appli-ances.It is widely used to correct Class Ⅱ molar relationship.More healthy teeth can be preserved with the using of pendulum appliance in the tooth extraction of borderline cases.The pendulum appliance was modified and used in clinic.Long-term observasion showed that the modified pendulum appliace is effective in orthodontic treatment.