ABSTRACT
Objective To investigate the influence of long-term exposure to oil and gas toxicants on the peripheral blood T lym-phocyte subsets in Karamay Uygur and Han refining workers and the underlying mechanism.Methods 175 cases of Uighur and Han refinery workers who had long-term close contact with poison of oil and gas(112 cases of Han people and 63 cases of Uygur people)and 110 healthy people(70 cases of Han people,40 cases of Uighur)were selected as research subject.The peripheral blood T lymphocyte subsets of all cases were detected for comparative analysis.Results Compared with healthy control group,the median of CD4+in the uighur refinery workers was significantly reduced(P<0.05);the CD8+in Han ethnic refinery workers was signifi-cantly lower,while the ratio of CD4+/CD8+increased significantly(P<0.05).Compared with Han ethnic,the median of CD3+, CD8+in uighur significantly increased,while the ratio of CD4+/CD8+decreased significantly(P<0.05).Conclusion Long-term close contact(more than 5 years)of oil and gas poison will significantly reduce the function of peripheral blood T lymphocyte sub-sets of refinery workers,and the effect on Han ethnic oil refinery workers was significantly higher than that on Uighur,,so corre-sponding measures on effective occupational protection are necessary to carry out.
ABSTRACT
Objective: To observe the influence of epidermal growth factor tyrosine kinase inhibitors (EGFR-TKIs) on peripheral blood T lymphocyte subsets, and its efficacy and safety in the treatment of non-small cell lung cancer (NSCLC) patients.Methods: A total of 35 cases with NSCLC in our hospital were selected as the observation group and 28 healthy persons undergoing health examination at the same time were used as the control group.All the NSCLC patients were with EGFR mutations and accepted the EGFR-TKIs therapy.Flow cytometry was employed to detect T lymphocyte subsets in peripherial blood (including CD3+,CD4+,CD8+,CD4+/CD8+ and NK lymphocy-tes)in one week before the treatment, at the 1st, 2nd and 4th cycle after the EGFR-TKIs treatment, and the curative effect and safety were evaluated as well.Results: Before the chemotherapy, the levels of CD3+, CD4+, CD4+/CD8+ and NK lymphocytes in the NSCLC patients were significantly lower than those in the control group (PSD>PD.The adverse reactions caused by EGFR-TKIs were slight, and all could be improved markedly after the symptomatic treatment.Conclusion: EGFR-TKIs can significantly regulate the expression of T lymphocyte subsets in NSCLC patients and improve the immune function of the patients with promising safety.
ABSTRACT
Objective To monitor the changes of T lymphocyte subsets during chemotherapy in patients with non-small cell lung cancer(NSCLC).Furthermore,to analyze the relationship between chemotherapy curative effect and the T lymphocyte subsets.Methods 42 cases with NSCLC were selected as the subjects,and 28 people undergoing health examination were selected as control group.All NSCLC patients just received NSCLC standard chemotherapy,then respectively determined T lymphocyte subsets at pre-chemotherapy and after 2,4 courses of chemotherapy.Every two cycles of chemotherapy we would evaluate the effect of chemotherapy.Results Before chemotherapy,the patients′ CD+3(t=3.222,PSD>PD.Conclusion Chemotherapy can improve the NSCLC patients′ T lymphocyte subgroup,and improve the situation related to the curative effect of chemotherapy.
ABSTRACT
Objective To analyze the clinic data of peripheral CIK cell increased abnormally in adults and discuss the function of the laboratory indexes on disease diagnosis ,monitoring and therapeutic intervention .Methods The peripheral blood of patients was collected to analysis .The flow cytometry instrument was used to detect lymphocyte subgroup .every patient was conducted bio‐chemical analysis ,function of blood coagulation tests and examination of marrow cell and the patient′s medical record was analyzed retrospectively .Results The total number of leukocyte and the percentage of lymphocyte in peripheral blood of patient were in‐creased;immunophenotyping results showed that lymphocytes was mainly T lymphocyte ,T8 cell number was increased and number of T4 cell was decreased;CIK(CD3+56+ ) cells were in the majority .the number of CIK cells was decreased after treatment and ranged from 28 .6% to 59 .7% .there was no obvious anomaly in examination of marrow cell before and after treatment .TNF‐α,IgM were increased mildly ,C4 was decreased mildly ,and other indicators were no obviously abnormal .Conclusion It is the first time that cases with CIK cells idiopathic increased .The monitoring of flow T lymphocyte subgroup can provide clinical diagnosis ,effect monitoring and it is worth to promote .
ABSTRACT
Objective To investigate the change of T-lymphocyte subgroup in children with infectious mononucleosis (IM).Methods Sixty young children with IM caused by Epstein-Barr virus (EBV) were recruited for this study in Jiaxing First Hospital from Jan 2005 to Dec 2010.Thirty-six normal children were chosen as control group.Both of the two groups were detected blood test,blood smear,T-lymphocyte subgroup ( including CD3,CD4,CD8,CD4/CD8 ),liver and kidney function test,IgM antibodies of EBV,cytomegalovirus,adenovirus,and hepatitis virus.Results Compared with the control group (53.58％ ± 5.97％,31.22％±8.72％ ),the ratio of CD3 (81.55％ ±9.04％ ) and CD8(58.13％ ± 13.35％ ) were significantly higher in IM group( P ＜0.05 ).And the ratio of CD4 ( 18.19％ ± 7.61％ ) and CD4/CD8 (0.37 ± 0.33) were significantly lower in IM group,compared with the control group (36.98％ ± 5.32％,1.98 ± 0.41 )(P ＜ 0.05 ).While the leukocyte count,the ratio of abnormal leukomonocyte,and alanine transaminase had no correlation with the decrease of CD4/CD8 ( P ＞ 0.05 ).Conclusion Children with IM caused by EBV have bad immunocompetence,and we can treat them with immunotherapy early.
ABSTRACT
Objective:To investigate the quantification of CD4~+CD25~+ regulatory T cells and distribution of CD4~+CD8~+ T lymphocyte subgroup in peripheral blood of patients in chronic hepatitis B (CHB),and to reveal relationship between CD4~+CD25~+ regulatory T cells,CD4~+CD8~+ T lymphocyte subgroup and HBV infetion as well.Methods:CD4~+CD25~(high),CD4~+CD25~+Foxp3~+Treg and CD3~+CD4~+CD8~+T lymphocyte subgroup in peripheral blood from 50 patients with CHB and 20 healthy controls was analyzed using flow cytometry.HBV DNA was detected by fluorescence quantitative PCR.Results:The number of CD4~+CD25~(high)Tregs in patients with CHB was obviously higher than that in healthy controls(P＜0.01)and increased with copies of HBV DNA.The same with the change of CD4~+CD25~+Foxp3~+Tregs in patients with CHB and there was a positive correlation between CD4~+CD25~(high)Tregs and CD4~+CD25~+Foxp3~+Tregs(r=0.890,P＜0.001).Compared with healthy controls,the frequency of CD4~+T cells and the ratio of CD4~+/CD8~+ in patients with CHB was declined,but there was no significant difference in the frequency of CD3~+T cells and CD8~+T cells between them(P＞0.05).The variation in the number of CD4~+CD25~(high)Tregs was correlated positively with the copies of HBV DNA(r=0.782,P＜0.001)and glutamic-pyruvic transaminase(ALT)(r=0.432,P＜0.005)separately,but negatively with the frequency of CD3~+,CD4~+,CD8~+T cells and the ratio of CD4~+/CD8~+(P＞0.05).The variation in the frequency of CD3~+,CD4~+,CD8~+T cells and the ratio of CD4~+/CD8~+ was also correlated negatively with the copies of HBV DNA(P＞0.05).Conclusion:The number of CD4~+CD25~(high)Tregs increases in patients with CHB and is in accordance with the copies of HBV DNA and increased level of ALT.Further studies should be done to investigate weather CD4~+CD8~+ T lymphocyte subgroup could be used to monitor the state of community.
ABSTRACT
Objective To detect T-lymphocyte subgroup in patients with malignant lymphoma, and investigate the relationship between the number of the cells and the oncogenesis and development of malignant lymphoma. Methods The counts of T-lymphocyte subgroup in peripheral blood of 106 patients with lymphoma were detected by flow-cytometry, and analyzed in comparison with that of 106 normal people as control. Results The counts of CD+3 cell and the ratio of CD+4/CD+8 in patients with malignant lymphoma were significantly lower than that of control group (P＜0.05). The number of CD+3 were significantly lower and CD+8 were higher than that of control group in patients with NHL at early ( Ⅰ, Ⅱ ) stage (P＜0.05). The counts of CD+3 CD+4 cell and the rate of CD+4/CD+8 in patients with NHL at advanced (Ⅲ ,Ⅳ) stage were significantly ldwer than that of control group (P＜0.05). Conclusion The function of immune is decreased in patients with malignant lymphoma, and these changes had correlation with clinic stage. It is of active significance by detecting T-lymphocyte subgroup in peripheral blood in patients with malignant lymphoma to evaluate the function of immune and find out the relationship between the number of the immune cells and the oneogenesis and development of malignant lymphoma.
ABSTRACT
Objective To investigate the mechanism of Chinese herb in preventing recurrence of ulcerative colitis. Methods One hundred and three UC patients were divided into treatment group and control group randomly. The treatment group was treated by Chinese herb and the control group was treated by Sulfasalazine. After treated for three months, fifty three full remission patients were followed-up. CD4+, CD8+ and CD3+ cell count were performed and influence of Chinese herb on recurrence was observed. Results Either the cell count of CD3+, CD4+ and CD8+ or the percentage of CD8+ in the peripheral blood was significantly higher in recurrence group than those in the control (P
ABSTRACT
Objective:To study the infuence of chemotherapy combined with thymopetidum on cellular immunity of the patients with late gastrointestinal malignant tumor.Method:80 cases in the present study were divided into two groups:treatment group(40 cases treated by thymopetidum and chemotherapy) and controlled group(40 cases treated by chemotherapy only).25 cases without malignant tumors were grouped as a normal group.The activity of T-lymphocyte subgroup and its cytokines as IL-2(Th_1 ) and IL-10(Th2) in the peripheral blood of the treatment group were investigated before the treatment and on the tenth day after the treatment for two cycles.A statistical study was done between the two groups.Result:Before the treatment,T-lymphocyte subset(CD_3~+.CD_4~+ and the ratio of CD_4~+/CD_8~+ ) and IL-2 of the patients with gatrointestinal malignant tumor were lower than those of the normal group.The values of CD_8~+ and IL-10 were obviously increased,compared with those of the normal group.After the treatment for two cycles,CD_3~+,CD_4~+ and the ratio of CD_4~+ /CD_8~+ were higher respectively than those before the treatment in the two groups,and the changes in the tested group were higher than those in the controlled group.IL-2 of the tested group was lower respectively and its IL-10 was higher than before the treatment,but there was no significant difference for the controlled group.The efficiency of the tested group was higher than that of the controlled group.Conclusion:The immunity of T-lymphocyte subgroup was suppressed in the patients with gastrointestinal malignant tumor and the expression of Th2 type cytokines was enhanced.The cellular immunity of patients was improved by killing tumor cells and removing the immunosuppressive agents after the chemotherapy together with thymopetidum.
ABSTRACT
Objective To explore significance of the T lymphacyte subgroup in cases with multiple sclerosis(MS).Methods Indirect immunofluorescence assay and flow cytometry were used to evaluate the presence of CD_4~+,CD_8~+ and T lymphocyte in the sera and CSF in patients with MS treated with glucocorticoid in the active stage.Results The CD_4~+,CD_8~+ and T lymphocyte in the peripheral blood of the patients in comparison with those of the control group decreased whereas their CD_4~+/CD_8~+ increased(P
ABSTRACT
Objective:To study the regulation effect of water extraction from Ganoderma Lucidum (Lyess. ex Fr) karst (GL W) on human immune cells and cytokine. Methods: With the technologies of MTT and FACS, the proliferation of T lymphocyte subgroup and IL 6 production in human peripheral blood lymphocytes (PBL) were studied. Results: 1. In the absence of mitogin, GL W could induce not only the inactive lymphocyte but also the PHA activited lymphocyte to proliferate in the similar concentration. The proliferation in the later was more obvious ( P
ABSTRACT
Objective:To investigate the cellular immunological regulation mechanism of Zhongjiling tablet on the myasthenia gravis(MG) patients.Methods:The myasthenia gravis patients were randomly divided into 2 groups, the curing group and the control group, 30 cases per group. Patients of curing group administered Zhongjiling tablet and prednisone placebo, patients of control group administered prednisone tablet and Zhongjiling tablet placebo. Course of treatment was 12 weeks. The distribution of T lymphocyte subgroup of myasthenia gravis patients was detected by flow cytometry. The content of IFN-?, IL-4 and TGF-? of the patients’ peripheral blood mononuclear in vitro were detected by ELISA kits.Results:After treatment, CD4+T cell percentage and the ratio of CD4+/CD8+ decreased significantly(P0.05). The IFN-? and IL-4 of treating group depressed, compared with that of pre-treatment, significant difference exited(P
ABSTRACT
Objective:To detect the changes on the ratio of T lymphocyte subgroup and immunoglobulin(Ig) in peripheral blood of patients with Primary extranodal lymphoma(PENL).Methods:The peripheral blood T lymphocyte subgroup ratio and immunoglobulin(Ig) complement C3,C4 content were detected by Flow Cytometry(FCM) and Immunoturbidimetry.Results:The numbers of CD3,CD4 or CD8 was lower(P