Objective To identify interleukin (IL)-17-producing T cells and Foxp3 positive CD4 positive T ceils from patients with rheumatoid arthritis (RA), and investigate their cytokine levels as well as their correlations. Methods Flow cytometry was used to analyze the subsets of T cells in peripheral blood from 39 RA patients and 40 healthy donors. IL-17, IL-6, IL-23 and transforming growth factor (TGF)-beta levels in sera of these subjects were tested by ELISA. Results IL-17+CD4+ T cells increased significantly and IL-17, IL-6 and IL-23 elevated markedly in peripheral blood of RA patients compared to healthy donors (P< 0.01 ). However,Foxp3+CD4+T cells decreased evidently (P<0.01) and TGF-beta did not increase in RA pati-ents when compared to healthy donors (P>0.05). Conclusion This study suggests that Th17 cells predomin-ance coupled with relatively insufficient CD4+ regulatory T cells in RA is mainly caused by alterations of rela-ted cytokines.

In order to identify the chemical constituents of Yushu tablets comprehensively, we studied the chemical constituents of CHCl3 extract from Yushu tablets by the ultra performance liquid chromatography-electrospray ionization-ion trap-time of flight mass spectrometry (UPLC-ESI-IT-TOF/MS). It showed that there were more than 100 compounds separated, and forty-nine peaks among these were identified on the basis of high resolution mass spectrometry data and literature data reported. Determination of twelve peaks was further confirmed by standard substances. These components assigned to the different plant sources mainly included phenylpropanoids, triterpenoids, quinones and m-trihydroxybenzene compounds. By analyzing the chemical components of CHCl3 extract from compound Chinese medicine Yushu tablets comprehensively, this study provided the foundation for studying chemical components, pharmacodynamic substance and quality control of Yushu tablets.
Chromatography, High Pressure Liquid ; Chromatography, Liquid ; Drugs, Chinese Herbal ; analysis ; Spectrometry, Mass, Electrospray Ionization ; Tablets ; Tandem Mass Spectrometry

OBJECTIVETo observe the effect of Shen warming Pi strengthening method on expressions of serum T cell subsets (C045+%, C03+%, and C04 +/COB+) in diarrhea-predominant irritable bowel syndrome (IBS-0) rats. Methods An IBS-0 rat model was established referring to AL-Chaer's modeling method combined with tail clamp and intragastric administration of sanna leaf. After modeling 30 SO rats were randomly divided into 6 groups according to random digit table, i.e., the model group, the high, middle, low dose Wenshen Jianpi Recipe (WJR) groups, and the Sishen Pill control group, 6 in each group. A normal control group consisting of 6 SO rats were also set up. Rats in high, middle, low dose WJ R groups were administered by gastrogavage with boil-free WJ R at the daily dose of 3. 100, 1. 550, 0. 775 g/kg, respectively. Rats in the Sis hen Pill control group were administered by gastrogavage with boil-free Sis hen Pill at the daily dose of 0. 736 g/kg. Equal volume of normal saline was given by gastrogavage to rats in the model group and the normal control group. All medication lasted for 2 successive weeks. Rats' general state, expressions of T cell subsets (CD45+%, CD3+%, and CD4+ /CDB+) changes were observed.

RESULTSCompared with the normal control group, expressions of CD45+% and CD3+% increased, but CD4+ /CDB+ decreased with statistical difference (P < 0. 05). Compared with the model group, expressions of CD45+% and CD3+% decreased, but CD4+ ICDB+ increased with statistical difference in high, middle, low dose WJR groups, and the Sis hen Pill control group (P <0. 05). Compared with the Sis hen Pill control group, there was statistical difference in all indices except CD45+ value in the low dose SWPSM group (P <0. 05). Compared with the low dose WJ R group, the expression of CD3+% decreased in high and middle dose WJR groups, and the Sis hen Pill control group; CD4+ /CD8+ increased in the Sishen Pill control group and the high dose SWPSM group (all P < 0. 05).

CONCLUSIONSWJR showed better treatment effect. The mechanism of Shen warming Pi strengthening method might be achieved by regulating expressions of CD45+% and CD3+%, and CD4+ /CD8+ ratios.

Animals ; Drugs, Chinese Herbal ; Female ; Irritable Bowel Syndrome ; therapy ; Leukocyte Common Antigens ; metabolism ; Medicine, Chinese Traditional ; Rats ; T-Lymphocyte Subsets ; metabolism

Adolescent ; Child ; Child, Preschool ; Electrocardiography ; Female ; Fever ; complications ; Hemorrhagic Fever with Renal Syndrome ; blood ; complications ; pathology ; Humans ; Hypergammaglobulinemia ; blood ; Immunoglobulin M ; blood ; Male ; Pain ; complications

Molecular biology experiment is an important course for postgraduates in medical university.Through updating and optimizing what to teach(emphasizing study design,setting up comprehensive experiment and updating practical techniques),improving teaching mode(paying attention to experimental preparation,teacher qualification and postgraduates' capability training) and perfecting evaluation approaches(combining the experiment report with experimental summary and regular grades with experimental practice),good results have been obtained.

Objective To provide supporting evidence to prevention and controlling of caries in preschool children in Huangpu District(Eastern Part), by studying the influence of their habits at home on the prevalence of caries. Methods The oral health of preschool children in Huangpu District was examined, and their habits at home were recorded through survey questionnaire, including sugary diet, tooth brushing, parents′ attitude for oral health. Results Sugary diet could affect the prevalence of caries.There was no association between dental caries and times of tooth brushing.Parents′ attitude for oral health is the risk factor for the children′s caries. Conclusion Because of the higher prevalence of caries in the children in our district, effective measures should be taken.In addition, policy should consider how to ensure that children with high-risk dental caries receive adequate prevention and early care.

OBJECTIVETo investigate the nephrotoxic effects of methyl cantharidimide tablets on urinary protein and enzymes in Beagle dogs.

METHODBeagle dogs were randomly divided into negative control group(blank tablet), methyl cantharidimide tablets group (6.11,12.21, 24.42 mg x kg(-1)), continuously 30 days of oral adminiStration, once a day. The drug and control group were collected and determined fresh urine in 1, 2, 3 and 4 weeks of the administration; Serum urea nitrogen (BUN), creatinine (Crea), total protein (TP) and albumin (ALB) as well as sodium, potassium, chloride electrolyte were determined on 15 and 30 days of the administration; Urine albumin (mAlb), kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin( NGAL), N-acetyl-beta-D-glucosaminidase (NAG), clusterin, beta2-microglobulin (beta2-MG), alpha1-microglobulin (alpha1-MG), alanine aminopeptidase( AAP) and im- munoglobulins IgG were tested on 15 and 30 days of the administration.

RESULTCompared with the control group, urine protein and white blood cells was significantly increased in each dose group. On 15 days of the administration, mAlb were higher in each dose group, KIM-1, NGAL, clusterin, NAG and AAP were significantly higher in high-dose group, while the middle and low dose group had no significant difference, as well as blood SCr and BUN no obvious abnormalities. On 30 days, mAlb, KIM-1, clusterin, NAG, AAP were increased in each dose group, appearing dose-effect relationship, beta2-MG and NGAL levels were significantly increased in high-dose group. Contents above indicators were increased with significant dose and time relationship, and serum BUN, Scr were correlated, suggesting that urine mAlb, KIM-1, clusterin, NAG and AAP indicators that can sensitively respond the changes of proteins and enzymes in urine.

CONCLUSIONMethyl cantharidimide tablets has a renal toxicity, urine mAlb, KIM-1, clusterin, NAG and AAP can be used as the early nephrotoxic biomarkers of methyl cantharidimide tablets.

Animals ; Biomarkers ; urine ; Dogs ; Female ; Kidney ; drug effects ; Kidney Diseases ; chemically induced ; Male ; Proteins ; metabolism ; Tablets ; adverse effects ; Urine ; chemistry

Objective To investigate the characteristics of renal hemodynamic and the esoteric prostacyclin(PGI2),thromboxane A2(TXA2)level in children with early Henoch-Schonlein purpura(HSP),and study the function of TXB_2/6-Keto-prostaglandin F(6-Keto-PGF_(1?))(T/K)numerus in early changes of kidney injury.Methods Children involved in the experiment were dicided into 3 groups.Thirty-one patients with HSP,divided into 2 groups according to routine urianlysis:children with HSP without renal damage group(n=16)and Henoch-Schonlein purpura nephritis(HSPN)group(n=15).Control group with 16 healthy children,their age and sex match with the other 2 groups.The urine of all children,including the children in control group,was sampled in 24 hours.The urinary production of the samples were kept in the freezer at-20 ℃.The radioimmunoassay was applied to determine the 6-Keto-PGF_(1?),TXB_2 quantitatively,and calculate the number of T/K.In the early morning the children accept the Doppler arteria renalis sonography with an empty stomach to determine the Vmax of the period of contraction of the arteria renalis the Vmin of diastolic phase and the resistent index(RI).SPSS 13.0 software was used to analyze the data.Results 1.The renal hemodynamic indicated a change of high velocity and resistance,the masculine rate(83.9%)was ob-viously higher than that in routine urinalysis(48.4%)(?2=5.79 P0.05).The RI in the former group(0.798?0.165)was much higher than that in the other one(0.637?0.116)(t=4.02 P

Objective To compare the immunogenicity of rAAV2/1 and rAd5 expressing HIV-1 gag in BALB/c mice.Methods BALB/c mice wcre immunized with rAAV2/1-gag or rAd5-gag once or twice.HIV-1 specifc cellular immune responses were analyzed by in vivo CTL and intracellular cymkine staining assays.HIV-1 Gag specifc antibodies were tested by ELISA.Results Mice immunized with rAd5-gag once induced stronger Gag specific cellular immune responses and similar level of Gag specific antibody compared with rAAV2/1-gag.Mice immunized with rAd5-gag reached the peak immune responses more rapidly than rAAV2/1-gag.However,mice immunized with rAAV2/1-gag twice elicited better Gag specific IgG.Conclusion rAd5-gag induced strong HIV-1 specifc cellular and antibody responses,and rAAV2/1-gag induced high level of HIV-1 specific IgG and moderate cellular immune responses.

OBJECTIVETo investigate the effect of bicyclol on vascular oxidative stress injury induced by superoxide anion.

METHODSRat thoracic aortic rings were isolated for isometric tension recording using organ bath technique. Superoxide arterial injury was induced by pyrogallol exposure, and the effect of bicyclol on endothelium-dependent relaxation was evaluated.

RESULTSBicyclol (10(-8) - 10(-5) mol/L) relaxed endothelium-intact aortic rings precontracted by phenylephrine. This effect was abolished by L-NAME, an inhibitor of nitric oxide synthase and indomethacin, an inhibitor of cyclooxygenase. Exposure to pyrogallol (500 micromol/L) resulted in decrease of acetylcholine(ACh)-induced endothelium-dependent relaxation in aortic rings, and pre-incubation of bicyclol (10(-5) mol/L) for 45 min improved the relaxation attenuated by pyrogallol. In aortic rings pre-treated with indomethacin, bicyclol increased the ACh-induced relaxation that was inhibited by pyrogallol (500 micromol/L). This effect was not found in aortic rings pre-treated with L-NAME.

CONCLUSIONBicyclol has endothelium-dependent vasodilating effect on rat thoracic aorta and improves vascular function by attenuating oxidative stress. Nitric oxide from endothelium is involved in the anti-oxidative effect of bicyclol.

Animals ; Antioxidants ; pharmacology ; Aorta, Thoracic ; metabolism ; physiology ; Biphenyl Compounds ; pharmacology ; Endothelium, Vascular ; physiology ; In Vitro Techniques ; Male ; Oxidative Stress ; drug effects ; Pyrogallol ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Superoxides ; pharmacology ; Vasodilation ; drug effects ; physiology