Objective: To study the cellular immunoregulatory effect of Huangqi through intravenous injection in patients with chronic hepatitis B. Methods: In treated groups, light and mild chronic hepatitis B (15 patients in each group) were treated with Huangqi and Ganlixin. In control groups, 10 patients in each group with light and mild chronic hepatitis B were treated with Ganlixin. Normal control group included 10 healthy volunteers. Results: Compared with control group, the level of CD3 +, CD4 + and CD4 + /CD8 + in treatment group increased significantly ( P

Objective To explore the clinical value of combined detection of serum beta human chorionic gonadotropin (β-hCG),estradiol (E2),progesterone (P) and antiphospholipid antibodies (ACA) in predicting the outcomes of early threatened abortion.Methods 80 pregnant women were chosen from six to eight weeks singleton pregnancies,50 cases of threatened abortion and 30 cases of normal pregnancy.The serum levels of β-HCG,estradiol,progesterone and ACA-IgG,ACA-IgM and ACA-IgA were detected.The threatened abortion patients were given intramuscular progesterone 20 mg/day/time for 1 week,then,the pregnancy outcomes were analyzed and the serum levels of β-HCG,estradiol and progesterone were explored.Results The serum β-HCG,estradiol and progesterone of the threatened abortion group [(5 140.77 ± 2 365.47) IU/L,(680.28 ± 306.06) pg/mL,(15.59 ± 3.65) pg/L]were lower than those of the normal pregnant women [(14 520.4 ± 11 016.24) IU/L,(1 142.81 ± 670.57) pg/mL,(27.6 ± 4.78) pg/L] (t =3.224,P =0.003 ; t =2.43,P =0.022 ; t =7.72,P =0.001).According to pregnancy outcome,patients with threatened miscarriages were divided into the two groups,including 45 patients with continuing pregnancies and 5 patients with inevitable miscarriages.The serum levels of β-HCG,estradiol and progesterone in ongoing pregnancies group [(10 829.42 ± 6 926.28) IU/L,(832.9 ± 397.91) pg/mL,(25.62 ± 4.51) pg/L] were higher than those in inevitable miscarriages [(6 310.14 ± 2 593.19) IU/L,(487.14 ± 275.47) pg/mL,(13.6 ±4.84) pg/L] (P ＜ 0.05) ;The serum levels of ACA-IgG,ACA-IgM and ACA-IgA in 80 cases tested,only 2 cases who appeared in the threatened abortion group were detected with the positive of serum ACA-IgG,accounted for 4％ (2/50) (x2 =68.05,P =0.000),occurred spontaneous abortion in the end.Conclusion Combined detection of serum ACA,β-HCG,estradiol and progesterone may be helpful for prognosis of threatened abortion.However,the clinical predictive value of ACA needs further study in the early threatened abortion.

Objective To investigate the effects of ch1D1, an anti-CD86 chimeric antibody, on autoreactive B lymphocytes isolated from patients with systemic lupus erythematosus ( SLE) . Methods Flow cytometry analysis was performed to measure the expression of CD86 on the surface of B cells isolated from patients with SLE and to analyze the effects of ch1D1 on the activation of CD4+T cells. The method of magnetic bead sorting was used to separate B cells, NK cells and CD4+T cells from PBMC collected from healthy subjects and patients with SLE for subsequent experiments. Antibody-dependent cell-mediated cyto-toxicity (ADCC) and complement-dependent cytotoxicity (CDC) that were mediated by ch1D1 were meas-ured with LDH release assay. Effects of ch1D1 on the secretion of auto-antibodies and the proliferation of CD 4+ T were detected by ELISA and 3 H -thymidine ( 3 H-TdR) incorporation assay, respectively. Results The levels of CD80 (68. 08±14. 28 vs 46. 10±12. 14, n=24, P<0. 000 1) and CD86 (44. 72±14. 90 vs 13. 99±10. 74, n=24, P<0. 000 1) expressed on the surface of B cells isolated from patients with SLE were significantly higher than those from the healthy subjects, suggesting the abnormal activation of B cells. Com-pared with the negative control group and the murine monoclonal antibody 1D1, ch1D1 was more effective in mediating the ADCC and CDC responses (P=0. 017 2, P=0. 038 8). Activated T cells significantly en-hanced the secretion of auto-antibodies by B cells isolated from patients with SLE. Compared with the nega-tive control group, the enhanced secretion of auto-antibodies was significantly inhibited by treatment with ch1D1 (P=0. 001 9). Moreover, ch1D1 significantly inhibited the proliferation and activation of CD4+T cells induced in patients with SLE (P=0. 002 4, P=0. 049 5). Conclusion ch1D1, the anti-CD86 chim-eric antibody, could effectively mediate the ADCC and CDC responses against autoreactive B cells isolated from patients with SLE, inhibit the secretion of auto-antibodies and suppress the proliferation and activation of auto-reactive CD4+T cells. It might be a potential immunotherapy agent for the treatment of SLE.