1.Detection of regulatory T lymphocyte in the peripheral blood of lung cancer patients and its clinical significance
Chinese Journal of Postgraduates of Medicine 2013;(12):1-2
Objective To investigate the percent and clinical significance of regulatory T lymphocyte (Treg) in lung cancer patients.Methods Sixty-six cases of lung cancer patients were collected as lung cancer group,30 healthy person were collected as control group.The percent of Treg was detected and contrasted between the two groups.Results The percents of Treg in control group and lung cancer group were 0.0356 ± 0.0122 and 0.1263 ± 0.0318,respectively,there was significant difference between the two groups (P < 0.01).The percent of Treg had no significantly related with gender,age,pathological type in lung cancer patients (P > 0.05).The percent of Treg was significantly related with histological grade and clinical pathological stage (P< 0.05 or < 0.01).Conclusion The abnormal elevation of the percent of Treg may be involved in the occurrence and development of lung cancer,and the percent of Treg can be used as the classification and prognosis of lung cancer patients.
2.Study of the correlation between the percentage of iNKT cells and the ratio of IFN-γ/IL-4 in patients with rheumatoid arthritis
Ming MENG ; Dan CHEN ; Minghua XU ; Minghui HOU ; Peishan WENG ; Fang WEI ; Yong WANG ; Dongzhi CHEN
Chinese Journal of Microbiology and Immunology 2015;(3):213-218
Objective To investigate the alterations of invariant nature killer T( iNKT) cells in peripheral blood samples from patients with rheumatoid arthritis ( RA) and to clarify the correlation between the percentage of iNKT cells and the ratio of IFN-γ/IL-4 in order to further understand the significance of iNKT cells in the development of RA.Methods Peripheral blood mononuclear cells ( PBMCs) were isola-ted from 70 patients with RA and 40 healthy subjects.Among them, thirty patients in the stage of inactive RA were involved in a follow-up study.Fluorescence activated cell sorting ( FACS) was used to detect the percentage of iNKT cells.PBMCs were cultured in vitro for analysis of cytokine production.The dynamic changes of iNKT cells in percentages were analyzed by FACS.MILLIPLEX MAP Human Cytokine/Chemo-kine kit was used to measure the secretion of IFN-γand IL-4 in serum samples and culture media of PBMCs. The expression of IFN-γand IL-4 in iNKT cells at mRNA level were analyzed by RT-PCR.Results Com-pared with the healthy subjects, the patients with active RA showed the delayed proliferation of iNKT cells and the decreased percentages and proliferation rates of iNKT cells (P<0.05).The percentages and prolif-eration rates of iNKT cells in patients with active RA were significantly lower than those in patients with inac-tive RA (P<0.05).No statistical significant differences with iNKT cells were found between healthy sub-jects and patients with inactive RA (P>0.05).The ratios of IFN-γ/IL-4 in serum samples and culture media of PBMCs were increased in patients with active RA as compared with those in patients with inactive RA and healthy subjects (P<0.05).No statistical significant differences with the ratios of IFN-γ/IL-4 were observed between healthy subjects and patients with inactive RA (P>0.05).Compared with healthy subjects and patients with inactive RA, patients with active RA showed increased transcriptional level of IFN-γand decreased transcriptional level of IL-4.No significant differences with the expression of IFN-γand IL-4 in iNKT cells at mRNA level were observed between healthy subjects and patients with inactive RA.The per-centage of iNKT cells was negatively related to the IFN-γ/IL-4 ratio in patients with RA (P<0.05).Con-clusion Decreased percentage and impaired function of iNKT cells were detected in patients with RA. iNKT cells were closely related to the development and disease activity of RA.
3.Effcets on immunoregulation of iNKT cells in RA by novel synthetic immunos-timulator CH1 b
Ming MENG ; Xuejiao ZHANG ; Peishan WENG ; Minghua XU ; Dan CHEN ; Minghui HOU ; Dongzhi CHEN
Chinese Journal of Immunology 2016;(2):218-222
Objective:To investigate effects of a novel synthetic immunostimulator CH1b containing thiazolidin-4-one on the immunoregulation funotion of iNKT ( invariant nature killer T ) cells in active RA patients in vitro.Methods: Peripheral blood mononuclear cells( PBMCs) isolated from active RA patients were cultured with stimulation of α-Galcer and IL-2 in vitro and iNKT cells were then separated by using magnetic activated cell sorting( MACS) method with iNKT isolation kit.The cells were divided into three groups:control group (IL-2),α-Galcer group (IL-2+α-Galcer),CH1b group(IL-2 +CH1b).The effects of CH1b on the proliferation of iNKT cells in active RA patients were analyzed by using MTT assay.MILLIPLEX MAP Human Cytokine/Chemokine kit was used to evaluate the secretion of IFN-γand IL-4 in iNKT cells culture media.The expressions of IFN-γmRNA and IL-4 mRNA in iNKT cells were analyzed by RT-PCR.Results: Compared with control and α-Galcer group,the proliferation of iNKT cells of CH1b group were significantly higher( P<0.05).Compared with control,the ratio of IFN-γ/IL-4 in iNKT cells culture media in active RA patients of CH1b group were significantly lower (P<0.05).Compared with control,expressions of IFN-γmRNA and IL-4 mRNA were higher inα-Galcer group;compared with control,expressions of IL-4 mRNA were higher in CH1b group,while there were no obvious difference on expressions of IFN-γmRNA.Conclusion:CH1b was found to significantly stimulate the actived iNKT cells in active RA patients proliferation,promote the secretion of IL-4,and increase the ratio of IFN-γ/IL-4,promote the expression of IL-4 mRNA in iNKT cells in active patients.
4.Effect of omni-directional health education on self management level and blood glucose control in type 2 diabetic patients
Yuanying WENG ; Danhong ZHANG ; Qiao LIN ; Qiuyue CHEN ; Minghua HU
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2018;25(1):81-84
Objective To explore the effect of omni-directional health education on self-management level and blood glucose control in patients with type 2 diabetes mellitus. Methods A total of 100 diabetic patients admitted to the department of neurology of Taizhou Central Hospital from January to December 2016 were randomly divided into an observation group and a control group, 50 cases in each group. All patients were given conventional medication according to their systemic conditions, the control group used conventional nursing care, while the observation group was supplemented with omni-directional health education (including diet control therapy, exercise therapy, blood glucose control, hypoglycemic drug use and observation, foot care, blood glucose self monitoring) on the basis of routine nursing;the course of treatment was 2 weeks in the two groups. The differences in self-management level and the effect of blood glucose control were compared between the two groups. Results On the return visits, the self-management scores were significantly higher in both groups than those before education (the control group was 35.2±9.2 vs. 30.1±5.2, the observation group was 78.6±11.5 vs. 29.8±5.4, all P < 0.05), fasting blood glucose [FBG (mmol/L): the control group was 8.8±2.5 vs. 14.8±2.9, the observation group was 6.1±1.6 vs. 15.1±2.7, both P < 0.05) and 2 hours postprandial blood glucose [2 h PBG (mmol/L): the control group was 12.5±3.4 vs. 22.5±3.8, the observation group was 9.1±2.2 vs. 21.9±3.6) were obviously lower than those before education (all P < 0.05), the degrees of improvement of the observation group were more significant than those of the control group [self management score: 78.6±11.5 vs. 35.2±9.2, FBG (mmol/L): 6.1±1.6 vs. 8.8±2.5, 2 hours PBG (mmol/L): 9.1±2.2 vs. 12.5±3.4, all P < 0.05]. Conclusion Omni-directional health education can improve the self-management level of diabetic patients, and the patient's blood glucose control is relatively better.