Objective To investigate the effects of atorvastatin on the experimental autoimmune encephalomyelitis(EAE)and the underlying mechanism of immunoregulation.Method The Wistar rats were used to establish EAE model.After oral administration of 2, 8 mg? kg~(1)?d~(1)of atorvastatin, the rats were examined for the development of neurological signs, changes of histopathology and the expression of IL-4 and MMP-9.Result Though high dose treatment with atorvastatin, the frequency of EAE attacks degreased from 76.67% to 33.33%(P=0.008);the extent of inflammation degreased from 3.2?1.1 to 1.3?0.4(P=0.01);and the number of MMP-9 positive cells degreased from 37?7 to 26?5(P= 0.001), the expression of IL-4 could be increased from(0.35?0.12)ng/ml to(0.68?0.23)ng/ml (P=0.05).Conclusion Atorvastatin can reduce the inflammation and produce the recover of the neurological harm because of the changes of MMP-9 and IL-4.

Objective To observe the significance of expressions of CD14+CD16+ on peripheral monocytes in children with Kawasaki di-sease (KD).Methods The expression of CD14+ and CD14+CD16+ monocytes in 16 children with KD (1-11 years old) were analyzed by flow cytomety both pre-treatment and post-treatment.And the percentages of CD14+CD16+ monocytes among CD14+ monocytes were calculated.Sixteen healthy children (10 months -10 years old) were served as normal control group.Statistical analysis was performed using t test.Results The levels of CD14+ monocytes,percentage of CD14+CD16+ monocytes among CD14+ monocytes and CD14+CD16+ monocytes in children with KD during acute phase (n=16) were (1.03?0.58)?109 L-1,(12.53?5.31)% and(1.20?0.79)?108 L-1.They were significantly higher than those in the normal controls[(0.57?0.21)?109 L-1,(3.86?1.84)% and (0.21?0.10)?108 L-1](Pa0.05).And the expressive levels remained high when the patient recurred.Conclusions The expressive levels of CD14+CD16+ monocytes increase in children with KD.And they change when the patient's clinical condition change.

To explore the molecular mechanism of human papillomavirus subtype 16(HPV-16)E7 oncogene-induced DNA re-replication in response to DNA damage. Flow cytometry was performed to examine the cell cycle changes in RPE1 E7 cells stably expressing HPV-16 E7 and its control cell RPE1 Vector after DNA damage.Immunoblotting assay was used to evaluate the early mitotic inhibitor 1(Emi1)expression in RPE1 E7 and RPE1 Vector cells with or without DNA damage.The changes of the proportion of polyploidy was detected by flow cytometry in DNA-damaged RPE1 E7 cells interfered by Emi1 small interfering RNA. Compared with the control cells,the proportion of polyploids in RPE1 E7 cells was significantly increased in response to DNA damage(=6.397,=0.0031).Emi1 protein expression was significantly increased in DNA damaged RPE1 E7 cells(=8.241,=0.0012).The polyploid ratio of RPE1 E7 cells was significantly reduced after Emi1 was interfered by two independent small interfering RNAs(=2.916,=0.0434;=3.452,=0.0260). In response to DNA damage,Emi1 promoted DNA re-replication caused by HPV-16 E7.
DNA Damage ; DNA Replication ; Human papillomavirus 16 ; Mitosis ; Oncogene Proteins, Viral

OBJECTIVETo systematically review the effectiveness of bone substitute augmentation combined with internal fixation versus internal fixation alone in treating proximal femoral fractures in the elderly.

METHODSSubject term and keywords were searched from Pubmed, Cochrane databases and CNKI from database foundation to August 2015. Randomized controlled studies and qusi-randomized controlled studies on bone substitutes augmentation combined with internal fixation versus internal fixation alone for the treatment of proximal femoral fractures in the elderly were chosen. Postoperative re-displacement, re-operation rate, complications (infection and bone ununion), functional outcome, quality of life scores and muscle strength were seen as outcome indicators. Enumeration data were statistical analyzed by risk difference and 95% confidence interval. Measurement data were analyzed by standardized mean difference and 95% confidence interval. If the same measurement data were evaluated by different standards in different studies, standardized mean differences and 95% confidence interval were used. The methods of statistical analysis were used by Cochrane databases.

RESULTSEleven RCTs (677 patients) were included. Meta-analysis results indicated that bone substitutes augmentation combined with internal fixation occurred fewer re-displacement [SMD = -0.75, 95% CI (-1.03, -0.47)] and obtained better function [SMD = 0.40, 95% CI (0.20, 0.59)]. While there were no significant differences in reoperation rate [RD = 0.02, 95% CI (-0.05, -0.09)], pain at 1 week after operation [MD = -1.79, 95% CI (-13.55, -9.96)], pain ranged from 6 to 8 weeks [MD = -7.24, 95% CI (-20.07, -5.59)], postoperative pain at 12 weeks [MD = -0.32, 95% CI (-4.9, -3.55)], muscle strength [MD = 1.25, 95% CI (-6.98, -9.48)], bone ununion [RD = 0.02, 95% CI (-0.01, -0.05)] and postoperative complications [MD = 0.01, 95% CI (-0.03, -0.04)].

CONCLUSIONCompared with single internal fixation, bone substitutes augmentation combined with internal fixation for the treatment of proximal femoral fractures in the elderly less occur re-displacement and could obtain better functional recovery.

Aged ; Aged, 80 and over ; Bone Substitutes ; administration & dosage ; Female ; Femoral Fractures ; surgery ; therapy ; Fracture Fixation, Internal ; Humans ; Male ; Middle Aged ; Randomized Controlled Trials as Topic ; Treatment Outcome

Objective To examine the expression of recombinant cytolethal distending toxin(CDT)produced by Actinobacillus actinomycetemcomitans(Aa).Methods CDT encoding gene cdtABC was amplified by PCR.Through TA clone and restriction endonuclease digestion,gene cdtABC and vector pQE60 were ligated to form pQE60-cdtABC expression system which transformed into competent cells.Protein expression was induced by IPTG and examined by SDS-PAGE and Western-blotting.Results Random colony PCR of pQE60-cdtABC transformed cells demonstrated that all strains contained cdtABC gene.The DNA sequence was blast with cdtABC gene from GenBank and 99%homology was obtained.SDS-PAGE and Western-blotting confirmed that recombinant CDT was obtained.Conclusions CDT protein expression system was reconstructed and recombinant protein was obtained.

Drying is the critical link during pharmaceutical process of traditional Chinese medicine (TCM), which is directly related to the quality of drugs. The key to technology upgrading of pharmaceutical equipment in Chinese materia medica enterprise is the development of new drying techniques, which concerns the modernization of TCM. The study provides new ideas for the drying technology and equipment by means of reviewing the research status of drying process for the traditional Chinese medicinal materials and preparations, and analyzing the traditional and modern drying methods and equipment, as well as their existing problems and corresponding measures for the drying processes and equipment. In addition, this paper expounds the development trend of traditional Chinese medicinal materials and preparations of drying process and equipment.
Chemistry, Pharmaceutical ; instrumentation ; methods ; standards ; Drugs, Chinese Herbal ; chemistry ; Humans ; Medicine, Chinese Traditional ; instrumentation ; standards ; Plants, Medicinal ; chemistry

OBJECTIVETo observe the intervention and mechanism of Qushi Huayu Recipe (QHR) on gene expression profiles in high lipid diet induced fatty liver rats.

METHODSFatty liver model was prepared in 20 male SD rats using single high fat diet (88% common forage +2% cholesterol +10% lard). Four weeks after modeling they were divided into the model group and the QHR group according to random digit table, 10 in each group. QHR (at 0. 93 g crude drug/100 g body weight) and distilled water was respectively to rats in the QHR group and the model group by gastrogavage while modeling, once per day. Meanwhile, 10 SD male rats were recruited in a normal group, administered with equal volume of distilled water by gastrogavage. At the end of week 8 all rats were sacrificed, and blood and livers were collected for subsequent analysis. Contents of liver triglyceride (TG) and free fatty acid (FFA) , activities of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were detected using biochemical assay. Pathological changes of liver tissue were observed using H&E and oil red O stain. Liver gene expressions were detected by Affymetrix gene expression profiles. Differentially expressed genes were compared between the QHR group and the model group, functions of differentially expressed genes and signal pathways involved analyzed. Ten differentially expressed genes involved in glycolipid metabolism with fold change more than 2 were selected for verification by real-time PCR.

RESULTS(1) Compared with the normal group, contents of liver TG and FFA, and serum activities of ALT and AST obviously increased in the model group (P <0. 01). Compared with the model group, contents of liver TG and FFA, and activities of ALT and AST obviously decreased in the QHR group (P <0. 05, P <0. 01). QHR could reduce high fat induced fatty degeneration of liver cells , alleviate inflammation, and improve pathological changes of liver tissue. (2) Compared with the model group, there were 80 differentially expressed genes (with fold change > 2, P < 0.05) with clear functions and appointed gene names, including 44 up-regulated and 36 down-regulated genes. Eighty genes were involved in 27 signal pathways with statistical difference, including glycerolipid metabolism, adipocytokine signaling pathway, insulin signal pathway, drug metabolism signal pathway, etc (P < 0.05). (3) RT-PCR results of 10 glycolipids metabolism regulating genes such as Gk, Scd1, Gpat2, G6pc, Irs1, and so on showed that all RT-PCR genes were completely coincide with up-regulated or down-regulated tendency in results of gene chips. 80% genes had approximate fold change.

CONCLUSIONQHR could regulate gene expressions related to fat metabolism, carbohydrate metabolism, anti-lipid peroxidation, and drug metabolism in high fat diet induced fatty liver rats, and its comprehensive pharmacological actions could be manifested.

Alanine Transaminase ; metabolism ; Animals ; Aspartate Aminotransferases ; metabolism ; Carbohydrate Metabolism ; Diet, High-Fat ; Drugs, Chinese Herbal ; pharmacology ; Fatty Acids, Nonesterified ; metabolism ; Fatty Liver ; metabolism ; Lipid Metabolism ; Lipid Peroxidation ; Male ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Transcriptome ; drug effects ; Triglycerides ; metabolism

OBJECTIVETo investigate the expressions and action mechanisms of nerve growth factor (NGF) receptors TrkA and p75NTR in the oncogenesis and progression of prostate cancer (PCa).

METHODSUsing immunohistochemistry, we detected the expressions of TrkA and p75NTR in 62 PCa and 35 benign prostatic hyperplasia (BPH) samples, and conducted statistical analysis on the basis of clinical data.

RESULTSIndependent-samples t-test showed that, along with poorer tissue differentiation or higher clinical stage of PCa, the expression of TrkA was significantly up-regulated, that of p75NTR remarkably down-regulated, and the expression ratio of TrkA to p75NTR markedly increased. The TrkA/p75NTR ratio was 0.32 in the BPH, 0.52 in the PCa tissue with Gleason score of 6, 1.65 in the PCa tissue with Gleason score of 7, 5.75 in the PCa tissue with Gleason score ≥ 8, 0.89 in the clinical stage of pT2, 1.5 in pT3 a, 3.75 in pT3b, and 7.00 in pTxN1.

CONCLUSIONThe abnormally increased expression ratio of TrkA to p75NTR might be one of the essential features of malignant transformation of prostate cells. A higher TrkA/p75NTR expression ratio may be associated with a lower tissue differentiation, a higher clinical stage or Gleason score, and therefore a poorer prognosis.

Humans ; Immunohistochemistry ; Male ; Neoplasm Grading ; Neoplasm Staging ; Nerve Tissue Proteins ; metabolism ; Prognosis ; Prostatic Hyperplasia ; pathology ; Prostatic Neoplasms ; pathology ; Receptor, trkA ; metabolism ; Receptors, Nerve Growth Factor ; metabolism ; Up-Regulation

Objective To evaluate values of magnetic resonance imaging(MRI)in eyes filled with silicone oil.Design Prospective cases series.Participants 40 eyes of 40 patients were filled with silicone oil after ocular injury.Methods MRI was performed in the 40 patients,including axial FSE T_1WI,T_2WI,coronal T_2WI with fat saturation,oblique sagittal T_1WI and axial T_2FLAIR.MRI findings,in- cluding morpbous,signal and complications were analyzed.Oculi axes were measured.Main Outcome Measures Morphous,signal, complications and oculi axes of the eyes filled with silicone oil.Results Affected oculi axis was 2.18cm?0.21cm,normal oculi axis was 2.48cm?0.16cm.The silicone oil in eyes demonstrated isointense signal or slightly hyperintense signal on T_1WI and T_2WI,hypointense signal after fat saturation.Hydrops was found in vitreous cavity in 33 patients,including simple hydrops in 17 patients and complicated other abnormality in 16 patients.Choroidal detachment was found in 11 patients,complicating vitreous hydrops in 5 patients and lo- calized bulge of eyeball wall.Retinal detachments were found in 4 patients,of whom 3 patients complicated with vitreous hydrops.Per- fluorocarbon liquid residual in vitreous cavity,foreign body in anterior chamber,localized thickness of the wall of the globe and meagre- mean of silicone oil in vitreous cavity were found respectively in one patient complicating vitreous hydrops.Except for eye changes, fracture of orbital wall and foreign body in orbit were found in one patient.Conclusions MRI can display the changes of eyes filled with silicone oil,and measure oculi axes biologically and accurately offering important clinical application value.(Ophthalmol CHN,2007,16: 312-315)

OBJECTIVETo determine the immunoprotective effects of rUreB and rHpaA bivalence genetic engineering vaccine with inner adjuvant of rLTB on BALB/c mice against H.pylori strain SS1 infection.

METHODSrUreB, rHpaA, rLTB-rUreB-rHpaA, rLTKA63, rLTB and rLTB were collected by NTA-Ni affinity chromatography. Western blot was applied to demonstrate the immunoreactivity of the recombinant protein antigens. Adjuvant activities of rLTB, rCTB and rLTB-rUreB-rHpaA were determined by GM1-ELISA. H.pylori strain SS1-infected BALB/c mouse modal was established to measure immunoprotective effects of different compositions of antigens and adjuvants. H.pylori in gastric biopsy specimens was examined by routine isolation method and silver staining method. Two ELISAs were established to detect specific S-IgA in gastric juices and specific IgA in sera of the immunized mice.

RESULTSrUreB, rHpaA and rLTB-rUreB-rHpaA were recognized by commercial antibody against whole cell of H.pylori and were able to combine to the bovine GM1. The protective rate in the mice immunized with single rUreB or rHpaA was lower than 70%. When using rUreB or rHpaA plus rLTB or rCTB, the positive rates increased to 75.0%-83.3%. With different combination of antigens and adjuvants, the immunoprotective rate of rLTB-jrUreB-rHpaA was as high as 100%, and then was 91.7% for rUreB+rHpaA+rCTB+rLTKA63 and was 90.9% for rUreB+rHpaA+rLTB. Both the rLTB and rCTB showed remarkable effects to induce specific IgA in sera and specific S-IgA in gastric juices of the immunized mice, and the former showed stronger S-IgA-inducing ability than the latter. The positive rates of specific IgA were basically identical to the corresponding mouse immunoprotective rates. S-IgA positive rates specific to rUreB and rHpaA in rLTB-rUreB-rHpaA immunized mice were 100% and 91.7%, respectively.

CONCLUSIONThe rUreB and rHpaA possess qualified immunoreactivity and antigenicity. The rLTB and rCTB can show adjuvant activity of mucosal immunization. The high immunoprotective rate of Helicobacter pylori UreB and HpaA bivalence recombinant vaccine with inner adjuvant in mice is associated with high dosage of rLTB, larger molecular weight of the antigen and the high levels of local specific S-IgA.

Adjuvants, Immunologic ; biosynthesis ; genetics ; Animals ; Bacterial Proteins ; biosynthesis ; genetics ; immunology ; Bacterial Vaccines ; immunology ; Carrier Proteins ; biosynthesis ; genetics ; immunology ; Female ; Genetic Engineering ; Helicobacter Infections ; prevention & control ; Helicobacter pylori ; immunology ; Immunoglobulin A ; blood ; metabolism ; Mice ; Mice, Inbred BALB C ; Recombinant Proteins ; biosynthesis ; genetics ; immunology ; Vaccines, Synthetic ; immunology