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Progress in Modern Biomedicine ; (24): 4426-4431, 2017.
Article in Chinese | WPRIM | ID: wpr-615070


Objective:To observe the effects of All-trans retinoic acid (ATRA) on the immune functions of AChR-specific lymphcytes via in vitro assays,and investigate the possibility of ATRA in the clinical treatment of myasthenia gravis (MG).Methods:CFA control group and EAMG experimental rats were established to obtain single lymphocytes suspension and cells were followed by AChR97-116 peptide with or without ATRA stimulation for 72 h,and then viable cell population,cell apoptosis,cell cycle and the distribution of Th cells were determined by flow cytometry.CCK-8 assay was selected to evaluate the effects of ATRA on proliferatory ability of lymphocytes.ELISA was used to detect the antibody secretion of B cells affected by ATRA.Results:Compared with CFA group,lymphocytes obtained from EAMG rats had higher ratios of living cells,and this ratio was obviously decreased after ATRA treatment,P<0.001.Different concentrations of ATRA promoted the apoptosis of AChR-specific cells (P<0.001),and the promoted effects were ATRA dose-dependent,however,cell cycles were not changed.ATRA markedly inhibited the proliferation of cells from both CFA and EAMG groups,moreover,AChR-specific cells were more sensitive to ATRA treatment (P<0.01) than that of cells from CFA rats (P<0.05).The ratio of AChR-specific CD4+T cells was reduced by ATRA (P<0.01),and ATRA incubation significantly promoted the percentages of Th2,(PCD4+-4IL-4+<0.001),Treg (PCD4+-Foxp3+<0.001) cell types,but markedly inhibited the percentages ofThl7 (PCD4+-IL-17+<0.05),Thl (PCD4+-IFN-γ+<0.001) cells.ELISA data showed us that ATRA obviously down regulated the antibody secretion of AChR-specific B cells,P<0.01.Conclusions:ATRA not only inhibited the functions of AChR-specific T cells,but also suppressed the roles of AChR-specific B cells,predicating a therapeutic effect of ATRA on myasthenia gravis therapy.

Article in Chinese | WPRIM | ID: wpr-606557


Objective To investigate the clinical value of combined detection of glycoprotein 125 (CA125) and human epididymis protein 4 (HE4).Methods 46 patients with ovarian malignant tumor (malignant tumor group) and 48 patients with benign ovarian tumors (benign tumor group) treated in our hospital from June 2013 to August 2015 were selected.The serum levels of CA125 and HE4 were detected in all the patients and its diagnostic value was evaluated by ROC curve.The levels of CA125 and HE4 in patients with different pathological types were compared.Results The best diagnostic value of CA125 was 47.9 U/L,The serum level of CA125 ≥47.9 U/L predicted the specificity of ovarian malignant tumor was 87.34% and that the sensitivity was 76.69%.The best diagnostic value of HE4 was 55.68 pmol/L.The serum level of HE4 ≥ 55.68 pmol/L predicted the specificity of ovarian malignant tumor was 90.34% and that the sensitivity was 83.01%.There was significant difference in CA125 and HE4 between the patients with benign and malignant ovarian tumors (P0.05)However,the sensitivity was significantly higher than that of single detection,the difference was statistically significant (P<0.05).The levels of CA125 and HE4 in patients with epithelial ovarian tumors were higher than those with non epithelial ovarian tumors,and the difference was statistically significant (P<0.05).The levels of CA125 and HE4 in patients with mucinous ovarian cancer were significantly lower than those in patients with serous ovarian cancer (P<0.05).Conclusion The combined detection of serum CA125 and HE4 can significantly improve the value of differential diagnosis of ovarian tumors,and CA125 and HE4 may play an important role in the pathological classification of malignant ovarian tumors.

Chinese Journal of Dermatology ; (12): 555-558, 2015.
Article in Chinese | WPRIM | ID: wpr-468396


Objective To analyze clinical features of and hypertrophy-related factors in patients with hypertrophic port-wine stains (PWS). Methods Patients with PWS were enrolled into this study from Anhui Provincial Hospital and the First Affiliated Hospital of Anhui Medical University between January 2010 and August 2014. Clinical features of hypertrophic PWS were investigated. The factors related to hypertrophy in PWS were analyzed by univariate and multivariate unconditional logistic regression analyses. Results A total of 262 patients with PWS were enrolled, 82 (30 males and 52 females)of whom had hypertrophic PWS with a median age of 32.5 years (range, 18 - 54 years). Among the 82 patients, 66(80.48%)had plaque-like hypertrophic PWS, 9(10.98%)had papular or nodular type, and 7 (8.54%)had mixed type; 56.10% (46/82)were aged ≥ 30 years, 41.46% (34/82)varied from 11 to 30 cm2 in lesional area, and 85.36% (70/82)showed purple lesions. There was a significant difference between patients with hypertrophic PWS and those with flat PWS in the distribution of age, lesional area and color(χ2 = 25.559, 10.580, 90.630, respectively, all P 0.05). Multivariate unconditional logistic regression analysis revealed that an age ≥ 30 years(OR = 2.889, 95%CI: 1.459 - 5.721)and purple lesions(OR = 19.984, 95% CI: 5.704 - 70.023)were factors related to skin hypertrophy in PWS. Conclusion An age ≥ 30 years and purple lesions seem to be hypertrophy-related factors in PWS.

Article in Chinese | WPRIM | ID: wpr-600801


Objective To investigate the expression of human papillomavirus E2 mRNA in cervical cytologi-cal specimens as well as the role of that in cervical carcinogenesis and its clinical significance in screening and evalat-ing prognosis of cervical lesions.Methods The expression of E2 mRNA in 582 cases of cervical cytological speci-mens with high risk human papillomavirus infection and cytological diagnosis of NILM,ASCUS and LSIL,was detected by RT -PCR.Thereafter,all cases were divided into the four groups by colposcopy and histopathological confirmation, including 414 cases of cervicitis,95 cases of CINⅠ,51 cases of CINⅡ,20 cases of CINⅢ and 2 cases of invasive cervical carcinoma as well.Results The expression of HPV -E2 mRNA decreased dramatically corresponding with pathological upgrading from groups of cervicitis to invasive cervical carcinoma (χ2 =132.72,P <0.05).The sensitiv-ity,specificity,positive predictive value and negative predictive value of HPV -E2 mRNA for screening potential cervical lesions in group of NILM,ASCUS and LSIL were 77.2%,96.8%,75.6%,96.0% and 81.0%,91.7%, 79.1%,92.6% as well as 95.9%,93.4%,94.7%,95.0% respectively.Conclusion Deletion of HPV -E2 induced by genetic disruption played an important role in the early stage of malignant transformation of cervical epithe-lial cells.Therefore,detection of the levels of HPV -E2 mRNA expression might be clinically valuable for the screen-ing and evaluating of prognosis in cervical lesions.