The effedt of ligustrum lucidum(LL)and acanthopanax senticosus(AS)on T cells was observed by Ea rosette formation and lymphocyte stimulation test with diff- erent experimental conditions.Both of the two drugs can promote the response of lymphocyte to PHA,but can not stimulate al one lymphocytes to proliferate.LL can raise EaRFC% of lymphocyte and accelerate the restoration of the EaRFC% of trypsin-treated lymphocytes,but AS not.AS can antagonize the inhibition of hydr- ocortisone,but LL not,In this paper,the mechanisms of the action of the two drugs were discussed.

China ; Foundations ; Preventive Medicine ; economics ; Research Support as Topic ; statistics & numerical data

Objective To investigate the blockade effects of soluble PD-1 (sPD-1) expressed in vivo on B7-H1/PD-1 signal transduction,and inhibitory effect in pulmonary metastasis of melanoma with combi- nation of Hsp70-B16 antigen peptides in mice.Methods The pulmonary metastasis model of melanoma was established in mice.Immunohistochemical staining and flow cytometry were utilized to detect the expres- sion of PD-1 and B7-H1 respectively in pulmonary metastasis loci.Four days after the inoculation of tumor cells,forty murine models of pulmonary metastasis were randomly divided to be immunized with normal sodium (group A),empty vector pcDNA3.1 (group B),PDlA plasmid (group C) respectively via tail vein injection,subcutaneous injection of Hsp70-B16 antigen peptides (group D) or with the combination of intra- venous PDlA plasmid and subcutaneous Hsp70-B 16 antigen peptides (group E).The local infiltration with lymphocytes in pulmonary metastasis loci was observed and a series of immunological parameters were assessed 17 days after the inoculation of tumor cells.Results The melanoma pulmonary metastasis model was successfully established.There were a lot of PD-1 positive cells in these loci,and B7-H1 molecule was massively expressed on the surface of B16 cells in metastasis loci.The pulmonary metastasis was inhibited in the mice of group E,and the inhibition rate was 95%,higher than that in other groups (53%,76%,9% in group C,D,B,respectively).The quantity of CD8~+ T cells in pulmonary metastasis loci,cytotoxicity of spleen lymphocytes to tumor cells,and serum concentration of IL-2 and IFN-?were all significantly elevated in the mice of group E as compared with those of other groups (all P

Objective To optimize the synthesis method of ¹⁸F-T807 and study preliminary biodistribution. Methods ¹⁸F-T807 was synthesized using an optimized method in TRACERlab FX_FN synthesizer with a t-BOC（t-Butyloxy carbonyl）-protected ¹⁸F-T807 precursor NPPI-9 as starting material, improving experimental conditions for synthesis, then QC and biodistribution study in Wistar rats conducted. Results The improved synthesis conditions increased the synthesis yield from 20.5%±6.1% to 25.7%±5.8%. QC met the standard. Wistar rats had higher intake in kidney, liver, blood and lowest intake in brain, heart, lung. Conclusion The optimized synthesis method to synthesize ¹⁸F-T807 is simple and easy, and high yield, which can meet the needs of scientific research and clinical practice.

Objective:To investigate the inhibitory effect of in vivo non-targeting transfection of recombinant fibronectin polypeptide CH50 against tumors and to study the related mechanisms.Methods:After inoculated with tumor cells, BALB/c mice were injected with CH50 plasmids,control plasmids,and normal saline separately.The growth of the tumor was observed;the expression of genes (such as B7-1,B7-H1 etc.) in tumor tissues was detected by RT-PCR;and the count of T lymphocytes in local tumor tissues was analyzed by flow cytometry.Results:The tumor growth was obviously suppressed by in vivo CH50 expression.The expression of genes (B7-1 and B7-H1) was up-regulated along with the growth of tumor.CH50 increased the ratios of B7-1/B7-H1 and B7-1/B7-DC and suppressed the up-regulation of IL-10 and TGF-?genes.The direct action of CH50 on H22 cells resulted in the down-regulatoin of TGF-?gene.The count of T lymphoeytes in tumor tissues of CH50 treatment group was significantly higher than that in other groups.Conclusion:Ex- pression of CH50 by non-targeting transfection can effectively inhibit the growth of tumor;the regulation of the immuno- regulatory genes in tumor mieroenvironment is an important part of the treatment mechanism of CH50.

OBJECTIVETo compare clinical outcomes of swing shoulder and internal fixation in treating proximal humeral fractures.

METHODSFrom June 2007 to June 2012, totally 89 elderly patients with humeral proximal fractures were treated by swing of shoulder or internal fixation, and 81 patients were followed up. In swing shoulder group, there were 38 patients including 13 males and 25 females aged from 62 to 84 with an average of (67.11±6.18) years old; 27 cases were 2-part fractures and 11 cases were 3-part fractures according to Neer classfication. In internal fixation group, there were 43 patients including 16 males and 27 females aged from 60 to 80 with an average of (66.47±5.48) years old; and 29 cases were 2-part fractures and 14 cases were 3-part fractures according to Neer classfication. VAS score and complications were compared between two groups after treatment, and Constant-Murley functional scoring was used to evaluate shoulder function of patients.

RESULTSEighty-one patients were followed up from 13 to 26 months with an average of 18.3 months. There was no significant difference in preoperative VAS score between two groups. After treatment, VAS score in swing shoulder group was (3.11±0.95), and (3.88±1.14) in internal fixation group, and had significant difference between two groups (t=-3.313,P<0.05). There was no significant difference in Constant-Murley scores between swing shoulder group (79.53±3.73) and internal fixation group (77.98±4.11) (t=1.768,P>0.05). Postoperative complications in swing shoulder group was 18.4%(7/38), 39.5%(17/43) in internal fixation group, and had significant differences between two groups (χ2=4.313,P<0.05).

CONCLUSIONSwing shoulder for the treatment of proximal humeral fractures in elderly has advantages of low cost, less complications and good recovery of joint function; while internal fixation has a good therapeutic effect but increased complications.

Aged ; Aged, 80 and over ; Female ; Fracture Fixation, Internal ; adverse effects ; methods ; Humans ; Male ; Manipulation, Orthopedic ; adverse effects ; methods ; Middle Aged ; Shoulder Fractures ; therapy

OBJECTIVETo analyze the polymerase gamma(Polg) gene polymorphisms in Chinese idiopathic infertile males and evaluate the correlation of the polymorphisms with male infertility.

METHODSWe conducted a study of Polg CAG repeats in the sperm or blood DNA of 55 asthenospermia patients, 57 oligospermia patients, 34 azoospermia patients, and 104 controls with PCR and GeneScan. Phenotypic data were available in all the subjects, including semen parameters, and clinical profiles.

RESULTSThe frequency of 10/not 10 CAG genotype in asthenospermia patients was higher than in the other groups, but with no significance.

CONCLUSIONOur findings have shown for the first time that there exits an ethnic difference between Chinese and European males in the number of CAG repeats of Polg gene, and that 10/not 10 CAG genotype may affect sperm motility.

Adult ; Case-Control Studies ; China ; epidemiology ; DNA Polymerase gamma ; DNA-Directed DNA Polymerase ; genetics ; Gene Frequency ; Genotype ; Humans ; Infertility, Male ; epidemiology ; ethnology ; genetics ; Male ; Polymerase Chain Reaction ; Trinucleotide Repeats

Objective To evaluate the characteristics of 99Tcm-ciprofloxacin and explore its feasibility in early detection of secondary infectious foci of severe acute pancreatitis (SAP).Methods Ciprofloxacin was labeled with 99Tcm.The labeling efficiency and radiochemical purity of 99Tcm-ciprofloxacin were calculated and its biodistribution in normal pigs was measured.The recruited baby pigs were divided into three groups:normal control group (6), non-infected group (6) and infected group (16).370-400 MBq of 99Tcm-ciprofloxacin was injected into each pig intravenously.SPECT scanning was performed at 0.5, 1,2, 3, 4 and 6 h after administration.The differences of 99Tcm-ciprofloxacin uptake among groups were calculated and the tracer activity ratio of lesion-to-background was recorded at each time point.The diagnostic value of 99Tcm-ciprofloxacin SPECT imaging for the dectection of secondary infection of SAP was assessed using histopathological results as the gold standard.Variance analysis and least significant difference test were used to analyze the data.Results Both the labehing efficiency and radiochemical purity of 99Tcm-ciprofloxacin were over 90% within 6 h.Organs with rich blood supply, such as kidney, liver and spleen were the target organs for the accumulation of 99Tcm-ciprofloxacin; while no significant uptake was found in gastrointestinal tract or normal pancreas tissue of SAP.Rapid plasma clearance and renal excretion were observed.In the infected group, the lesion was visualized at 1 h after administration.The highest radioactivity ratio of lesion-to-background (3.36 ± 0.33) was at 3 h after administration, which was significantly higher than that of the other time point ( F =99.570, P ＜0.001 ).The sensitivity, specificity, positive and negative predictive values, Youden's index (YI) and Kappa value of 99Tc%ciprofloxacin imaging were 88.2% (15/17), 83.3% (5/6), 93.8% ( 15/16), 71.4% (5/7), 0.715 and 0.667 respectively.Conclusions The biodistribution of99Tcm-ciprofloxacin is suitable for imaging infectious focus of SAP.The optimal imaging time for the detection of secondary infection of SAP is 3 h after administration, with high sensitivity and specificity.

OBJECTIVETo compare the antibacterial effects of Huangqin-Tang with its metabolites produced by intestinal flora.

METHODThe antibacterial tests in vitro and in vivo were performed by agar dilution method and lethal protection of animal respectively.

RESULTHuangqin-Tang and its metabolites had antibacterial action on bacteria in vitro, however the antibacterial activity of metabolites of Huangqin-Tang on Salmomella, Dysentery bacillus and Proteus in vitro was stronger than Huangqin-Tang. The metabolites of Huangqin-Tang had protective effect on the animals infected by Staphylococcus aureus and Escherichia coli respectively from death, but Huangqin-Tang had no lethal protection action.

CONCLUSIONThe antibacterial effects of metabolites of Huangqin-Tang in vitro and in vivo are stronger than that of Huangqin-Tang, which shows that intestinal flora play a very important role in antibacterial effects of Huangqin-Tang.

Animals ; Anti-Bacterial Agents ; pharmacology ; therapeutic use ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Escherichia coli Infections ; drug therapy ; Feces ; microbiology ; Intestines ; microbiology ; Male ; Mice ; Phytotherapy ; Plants, Medicinal ; chemistry ; Proteus ; drug effects ; Salmonella ; drug effects ; Shigella dysenteriae ; drug effects ; Staphylococcal Infections ; drug therapy

Adult ; Humans ; Knee Injuries ; surgery ; Male ; Menisci, Tibial ; surgery ; Transplantation, Homologous ; methods