Objective: To explore the influence of esteem, social support, locus of control and other variables on the subjective well-being (SWB) of college students. Methods: Index of Well-being, SSRS (social support rating scale) and MMCS (multi-dimensional multi-attribution causality scale) were used in 400 college students. Results: Urban and rural students differed in SWB, there was no significant difference in SWB between male and female. SWB was positively correlated with self-esteem and social support. SWB in the group of "external locus of control" was lower than that of"middle locus of control" and of"inner locus of control", while there was no significant difference between the later two groups. Conclusion:This study provides a base for further study on SWB of students.

Objective To study chitosan's improving proliferation effect to the bladder epithelial cells,thus providing experlimental foundation for the treatment of interstitial cystitis.Methods Bladder epithelial cells were harested by the enzymatic digestion of the epithelium exposed by the eversion of reseeted New-Zealand hare's bladder.The cells were cultured in different concentrations(0.3、0.6、1.2、2.4、4.8 g/L)of chitosan group and control group,after 72 h,observing their growth and proliferation with optical microscopy;The effects of chitosan on proliferation of rabbit bladder epithelial cells were studied by NAG assay.EGFR mRNA was measured by PT-PCR.Results The growth of cells in the sample added chitosan is much better than that of in the control group.Chitosan could promote the proliferation of bladder epithelial cells at higher than 0.3 g/L of concentration in a dose dependent way.The optimum concentration to increase proliferation of eonjunctival epithelial cells was 1.2 g/L.The proliferative effect of EGFR mRNA increased with the elevated chitosan concentration after 72 h.Conclusions Chitosan can promote the growth of the bladder epithelial eell,which can provides a valuable evidence for further studies of interstitial cystitis's treatment.This proliferation effect is perhaps related to chitosan's promoting EGFR combinating specificity with EGFR.

Objective To investigate the indoor air pollution caused by construction materials and decoration materials and present scientific data for controlling indoor air pollution caused by construction and decoration materials. Methods 126 samples collected from 44 newly decorated rooms in some districts of Luohe city. The levels of ammonia, benzene and formaldehyde were analyzed according to the national standard. Results The rates of exceed standard of benzene and formaldehyde concentration were 8.7% and 72.2% respectively. Formaldehyde concentration was 3.4 times of the national standard limit averagely. Ammonia and dimethylbenzene were not detected. Conclusion Some decoration materials can pollute the indoor air. The formaldehyde and benzene concentration tend to decrease as time goes on.

Objective: To explore how social support in students of normal college related to their interpersonal attribution and philosophies of human nature, and whether social support varied with different subgroups. Method: Social Support Rating Scale, the Multidimentional-Multiattributional Causality Scale and Revised Philosophies of Human Nature Scale were used in 414 students of a normal university. Result: The social support of students differed significantly among different departments, students of science had lower social support than students of art or sport had. There was no significant difference of social support between sexes, different grades, of urban or rural area. Social support was significantly correlated with "effort" attribution of interpersonal relationship, but not with "ability, background or luck". Social support was positively related to trustworthiness, while negatively to cynicism. Conclusion: This result fits for the common sense of Chinese and people elsewhere.

Cancer stem cells (CSCs) are a small subset of cancer cells in the tumor,which possess the exclusive ability to proliferate indefmitely and multiple differentiation.These tumor cells play a crucial role in the maintenance of malignant proliferation,drug resistance,metastasis and recurrence.Majority of ocular malignancies have the properties of high recurrence,metastasis and poor prognosis.Recently,CSCs was found to exist in the ocular malignancies,also might be involved in the tumor initiation and progression.This article reviews the research progress on CSCs in ocular malignancy.

Adult ; Aged ; Breast Neoplasms ; genetics ; metabolism ; pathology ; surgery ; Female ; Gene Amplification ; Genital Neoplasms, Male ; genetics ; metabolism ; pathology ; surgery ; Humans ; Male ; Middle Aged ; Paget Disease, Extramammary ; genetics ; metabolism ; pathology ; surgery ; Paget's Disease, Mammary ; genetics ; metabolism ; pathology ; surgery ; Penile Neoplasms ; genetics ; metabolism ; pathology ; surgery ; Receptor, ErbB-2 ; genetics ; metabolism ; Scrotum ; Vulvar Neoplasms ; genetics ; metabolism ; pathology ; surgery

Objective To study the correlation between laryngopharyngeal reflux (LPR) and voice disorders . Methods One hundred and three patients with reflux -related symptoms were recruited .The patients were evalu-ated with reflux symptom index (RSI) ,reflux finding score (RFS) evaluation and 24-hour dural-probe pH moni-toring .Eighty -nine cases with voice disorders were divided into 5 groups :vocal process granuloma (n=18) chron-ic pharyngolaryngitis (n=19) ,vocal polyps (n=15) ,vocal fold leukoplakia (n=21) and Reinke's edema (n=16) . The other 14 patients without voice disorders were the control subjects .Results According 24-hour dural -probe pH monitoring assessments ,48 .3% of the patients with voice disorders showed LPR positive .The positive rate in the vocal fold leukoplakia group (71 .4% ) and Reinke's edema group (75 .0% ) were significantly higher than the control group (35 .7% ) .RSI and RFS of the patients with Reinke's edema were both significantly higher than the control group(P=0 .020 ,P=0 .009) .RSI of the patients with chronic pharyngolaryngitis were significantly higher than the control group (P=0 .019) .The acid reflux episodes ,acid reflux time which except in the supine position of the vocal fold leukoplakia group were significantly higher than the control group .The acid reflux episodes ,acid ex-posure and acid reflux time which all except in the supine position of the Reinke's edema group were significantly higher than the control group .Conclusion The correlations between Reinke's edema ,vocal fold leukoplakia and LPR were stronger .In these two groups ,the acid reflux episodes were higher and acid reflux times were longer .

Objective To assess the right ventricular (RV) performance in patients with type 2 diabetes mellitus (2-DM) by two-dimensional speckle tracking imaging (2D-STI),and to explore the clinical value of RV longitudinal strain and strain rate.Methods Thirty-seven patients with 2-DM only and thirtyone patients coexisting diabetes and hypertension (DM + HTN) were studied.Thirty-nine healthy age matched persons served as control subjects.In each patient a conventional two-dimensional echocardiography was performed and also an echocardiographic study with strain/strain rate imaging was studied.Analysis of RV longitudinal systolic strain were obtained in the apical four-chamber view of the RV for the assessment of the RV free wall(F-PLSS),interventricular septum (S-PLSS) and the global RV wall (G-PLSS).The entire RV longitudinal peak systolic strain rate (G-SRs),peak early-diastolic strain rate (G-SRe) and peak late-diastolic strain rate (G-SRa) were performed in the apical four-chamber view.Results Compared with controls,F-PLSS,S-PLSS,G-PLSS,G-SRs and G-SRe were decreased in 2-DM and DM + HTN (all P ＜0.01),with lower values in DM + HTN (P ＜0.05).In the patients coexisting diabetes and hypertension,G-SRa was significantly lower than those in the control group (P ＜ 0.05).Compared with 2-DM,this difference was not significant in controls and DM + HTN (P ＞0.05).Conclusions No matte the patients of 2-DM with or without hypertension,the early changes of RV dysfunction can be found by 2D-STI.Patients coexisting diabetes and hypertension may have worse RV dysfunction.

Objective To observe and compare the functional outcomes of early rehabilitation of persons who received primary bilateral or unilateral total knee arthroplasty (TKA).Methods Sixty-eight subjects were divided into a unilateral TKA group (36 cases) and a bilateral TKA group (32cases).All received the same professional rehabilitation program during an average postoperative hospital stay of (15.00 ± 3.71 ) days.At discharge,a visual analogue scale (VAS) was used to rate pain.Active range of motion (AROM) of the involved knee,knee injury and an osteoarthritis outcome score (KOOS) were also assessed.The KOOS and knee society score (KSS) were evaluated at follow-up about 11 months later.Results There was no significant difference between the two groups in any assessment at discharge,nor in the KOOS and KSS-Ⅰ assessments at follow-up.The KOOS of both groups at follow-up had improved significantly compared with that at discharge.The KSS-Ⅱ results in the bilateral group were slightly better than those in the unilateral group at follow-up,and that difference was significant.Conclusions Bilateral TKA patients and unilateral TKA patients had the same clinical outcomes after early postoperative rehabilitation,but the functional outcomes of bilateral TKA patients were better than those of unilateral TKA patients a year later.

AIM: To investigate whether protein kinase C (PKC) is involved in the proliferation and the telomerase expression in human hepatocellular carcinoma cells. METHODS: Human hepatocellular carcinoma cells (BEL-7402) were treated with exogenous phorbol-12-myristate-13-acetate (PMA, PKC activator) and staurosporine (SP, PKC inhibitor) for 48 hours. The techniques of cell culture and the telomeric repeat amplification protocol silver staining in combination with computer image scanning system in vitro were used to observe the variations of the growth and the telomerase expression. RESULTS: The proliferative potential of BEL-7402 cells was decreased by the action of PMA as well as SP, and the telomerase expression was also inhibited by PMA and SP. CONCLUSION: Our findings suggest that the proliferation of human hepatocellular carcinoma cells and the telomerase expression may be related to PKC. [