Objective To investigate the features of immune response of human immunodeficiency virus type-1 (HIV-1) antigen specific T lymphocytes in HIV-1 monoinfected or HIV 1/hepatitis C virus (HCV) coinfected individuals.Methods Twenty-six HIV-1 monoinfected and 23 HIV-1/HCV coinfected individuals were enrolled.Immunomagnetic microbeads were used to isolate T lymphocyte subpopulation CD4+ T cells and CD8+ T cells from human peripheral blood mononuclear cells (PBMC).Frequencies of interferon-γ (IFN-γ) secreting cells of CD4+,CD8+ T lymphocytes and PBMC stimulated by a peptide pool containing 12 overlapping peptides in HIV-1 P24 from 49 patients were assessed by enzyme-linked immunospot (ELISPOT) assay.HIV-1 RNA levels of these patients were also detected by real-time fluorescence quantitative polymerase chain reaction.The data were compared by one-way ANOVA and Mann-Whitney U test,and Spearman test was used for correlation analysis.Results Frequencies of HIV-1 antigen specific CD4+ T lymphocytes [median =25 spot-forming cells (SFC)/106 cells] were significantly lower than those of CD8+T lymphocytes (median=38SFC/106 cells,F=4.592,P=0.037) and PBMC (median=53 SFC/106 cells,F=5.436,P=0.025) in HIV-1 monoinfected group.Frequencies of HIV-1 antigen specific CD4+ T lymphocytes (median=5 SFC/106 cells,Z=-2.432,P=0.015),CD8+T lymphocytes (median=5 SFC/106 cells,Z=-1.996,P=0.046) and PBMC (median=10 SFC/106 cells,Z=-2.306,P=0.021) in HIV-1/HCV coinfected group were significantly lower than those in HIV-1 monoinfected group.Conclusions In HIV-1 infection,antigen specific immune response of CD4+ T cells can be activated,but weaker than that of CD8+ T cells.Co-infection with HCV might down-regulate the responses of HIV-1 antigen specific T lymphocytes in HIV-1 infected individuals.

Objective To investigate the synergistic regulation of KDM3B and JMJD1C in leukemia. Methods The expression level of JMJD1C and KDM3B were analyzed in multiple acute myeloid leukemia (AML) cell lines. AML cell lines NB4 and HL-60 were treated with Daminozide, followed by determination of H3K9 mono-methylation and di-methylation. AML cell lines NB4 and HL-60 were treated with Daminozide, ATRA (retinoid acid All-trans), C Vitamin and the expression of KDM3B and JMJD1C were detected by real-time quantitative PCR. Results The expression level of KDM3B and JMJD1C in the AML cell lines was negatively correlated. In NB4 and HL-60 cells treated by daminozide, H3K9 mono-methylation and di- methylation level showed a rising trend in these two cell groups. After treatment of NB4 cells with the 3 reagents, the level of mRNA of KDM3B was down-regulated while the level of mRNA of JMJD1C was up-regulated. In HL-60 cells treated by daminozide, the mRNA level of KDM3B was up-regulated and the mRNA level of JMJD1C was down-regulated. Conclusion The expression of KDM3B and JMJD1C is negatively correlated in patients with AML.

Objective To explore the alterations of protein phosphatase-2A (PP-2A) in lymphocytes in mild cognition impairment (MCI) and Alzheimer's disease (AD).Methods The activity PP-2A of was measured by ~(32)p liquid seintillography for incorporated radioactivity in control group(n=11) , the MCI group(n=11),and the AD group(n=11).The expression of PP-2A was determined by Western blot.Results In the control group,the activity of PP-2A (1.01?0.09) and the expression of PP-2A (0.96?0.07) were high while in the MCI group,the activity of PP-2A (0.71?0.12) and the expression of PP-2A (0.80?0.05) were decreased (both P

A HPLC-MS/MS multiple-reaction monitoring (MRM) quantitative analysis was made to establish a determination method for drug concentrations of costunolide (Co) and dehydrocostuslactone (De) in blood samples in the positive ion mode, with diazepam as the internal standard substance, in order to study the pharmacokinetic process of sesquiterpene lactones costunolide and dehydrocostuslactone after the oral administration of Weichang'an pills, and provide an theoretical basis for further studies on the substance basis for the anti-diarrhea effect of Weichang'an pills. In the blood samples, Co and De showed a good linearity within concentration ranges 0.700 0-769.7, 2.510-956.0 μg x L(-1), respectively. The results of precision, stability and recovery experiences proved the stability and reliability of the plasma concentration determination method. After the oral administration, the concentrations of Co and De in plasma increased with the increase in dose, with T(max) between 10.65-12.98 h, indicating a long time to reach peak plasma concentrations; C(max) of costunolide and dehydrocostuslactone ranged between 3.750-5.450,15.34-44.52 μg x L(-1), respectively. The in vivo adsorption of Co and De conformed to the one-compartment model, with a longer time to attain the peak plasma concentrations. These results provided an experimental basis for revealing the active substance basis and clinical medication of Weichang'an pills.
Administration, Oral ; Animals ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; pharmacokinetics ; Lactones ; administration & dosage ; blood ; pharmacokinetics ; Male ; Rats ; Rats, Wistar ; Sesquiterpenes ; administration & dosage ; blood ; pharmacokinetics ; Tablets ; administration & dosage ; chemistry ; pharmacokinetics

Animals ; Diaphragm ; physiopathology ; Electrophysiological Phenomena ; physiology ; Hypoxia ; physiopathology ; Male ; Rats ; Rats, Wistar ; Sleep Apnea Syndromes ; physiopathology

Objective To discuss and analyze the issue in the catheter directed thrombolysis(CDT) treatment of acute lower extremity deep venous thrombosis.Methods The clinical data of 182 cases of acute lower extremity deep venous thrombosis from January 2011 to January 2013 which were treated by CDT were retrospectively analyzed,and the issues in these treatment were discussed and analyzed.Results The effect were classified into three degrees.Thrombosis clearance exceed 95 percent belonged to the first degree,among 50 percent and 95 percent belonged to the second degree,and below 50 percent belonged to the third degree.In this study,the respective number of each degree were 93/68/21.Sixty-one cases combined iliac venous compression syndrome were treated by stent.Twenty-two cases were treated with inferior vena cava filter.All the patients were followed up 10 months,148 cases of them maintained patency.Conclusions The effect of CDT treatment to acute lower extremity deep venous thrombosis is remarkable,meanwhile the patency is improved and the deep vein thrombosis were decreased through this method.But the issues of access,filter and iliac venous compression syndrome should also be considered.

OBJECTIVE:To investigate the toxicity effect of Jianpi shengxue granule on perinatal rats. METHODS:Based on body mass,pregnant rats were randomly divided into negative control group and Jianpi shengxue granule low-dose,medium-dose, high-dose groups(0.77,2.31,6.93 g/kg),21 in each group,and intragastrically given relevant medicines from the 15th d of preg-nancy until 21st d after delivery,once a day. Effects of Jianpi shengxue granule on general toxicity and fertility of maternal rats were observed,as well as the effects on athletic ability,learning and memory ability,fertility of F1 offspring and early viability of F2 offspring. RESULTS:In terms of toxicity effect on maternal rats,compared with control group,the days of pregnancy in Jianpi shengxue granule high-dose group was significantly prolonged(P<0.05),initial body mass of administration was significantly re-duced (P<0.01). In terms of toxicity effect on offspring,compared with negative control group,the initial body mass of F1 off-spring in Jianpi shengxue granule high-dose group was significantly reduced(P<0.05),the time of 4th and 5th time for founding underwater platform was significantly shortened(P<0.01),and there was no obvious effect on fertility of F1 offspring and early vi-ability of F2 offspring (P>0.05);there was no obvious effect on the indexes of offspring in Jianpi shengxue granule medium-dose,low-dose groups. CONCLUSIONS:The no toxic dose of Jianpi shengxue granule in maternal and offspring rats is 2.31 g/kg.

Objective To understand the immigrants' recognition of schistosomiasis and their relevant behaviors in the South-North Water-Diversion Middle-line Project areas in Hubei Province.Methods The investigation objects were selected by the method of stratified sampling among immigrants in the project areas and were surveyed through oral interview and questionnaire.Results A total of 1 010 immigrants were investigated and 1 005 questionnaires were indentified as effective ones.The awareness rates of schistosomiasis and the correct rates of related behaviors among the immigrants were still not satisfying.Conclusions The immigrants' recognition of schistosomiasis and their relevant behaviors in South-North Water-Diversion Middle-line Project areas in Hubei Province still need to be improved through health education and other measures.

Aim: To investigate a new type wound dressing,basic fibroblast growth factor(bFGF)/collagen com-posite sponge,and conduct its pharmacological studies in vitro and in vivo.Methods: bFGF/collagen composite sponge was prepared using fresh pig skin and bFGF.The sponge's physicochemical properties were studied.MTT assay was used to detect the proliferation effect of the sponge extract on 3T3 cells.Delayed allergy of the sponge was tested for the assurance of its biosafety.Results: Results showed that the physicochemical properties of bFGF/collagen composite sponge with high and low doses of bFGF have no significant difference from those of blank collagen sponge.SDS-page analysis indicated that the composite sponge has apparent strip in 18 kD.It was also found that bFGF/collagen composite sponge was responsible for significant effects on 3T3 cell proliferation in comparison to saline treatement(P <0.01,P <0.05).In the allergy study,during the periods of the induction and stimulation,no allergic reaction was found in bFGF/collagen composite sponge groups with high and low doses of bFGF,while severe reactions and inflammation occurred in positive group(2,4-dinitrochlorobenzene).Furthermore,pathological examination indicated the intact dermal structure and no sign of inflammation.Conclu-sion: The developed sponge has good physicochemical propertis and noticed cellular proliferation without dermal irritation.There is much potential to develop bFGF/collagen composite sponge into a new kind of wound dressing material for clinical use.

Acute Disease ; Female ; Gastrointestinal Hemorrhage ; etiology ; Humans ; Infant ; Intestine, Small ; abnormalities