Animals ; Diestrus ; drug effects ; Female ; Hyperprolactinemia ; physiopathology ; Panax ; Prolactin ; blood ; Rats ; Rats, Wistar ; Saponins ; pharmacology

Adult ; Cardiac Catheterization ; instrumentation ; Ductus Arteriosus, Patent ; therapy ; Equipment Failure ; Female ; Humans ; Male ; Young Adult

OBJECTIVEThe aim of this study is to investigate the effects of irradiation on the proliferation and differentiation of MC3T3-E1 osteoblastic cells.

METHODSMC3T3-E1 cells were irradiated 24 h after initial seeding. Gamma-radiation was administered at 0, 4, and 8 Gy as single doses by using a 60Co source. Cell proliferation was assessed at days 1, 3, 5, and 7 post-irradiation by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenylte-trazolium bromide assay. The collagen secretion of the cells was measured through sirius red staining at day 12 post-irradiation. The expressions of osteogenesis-related genes were assessed through real time fluorescence quantitative polymerase chain reaction at day 16 post-irradiation. The matrix mineralization caused by cells was evaluated through alizarin red staining at day 28 post-irradiation.

RESULTSThe cells exposed to 4 Gy or 8 Gy demonstrated significantly lower proliferation rates compared with the non-irradiated group. Doses of 4 Gy or more significantly inhibited the expressions of osteogenesis-related genes (Osterix and osteocalcin). Collagen secretion and cell mineralization were significantly reduced by the 8 Gy dose.

CONCLUSION60Co gamma-rays dose-dependently suppress the proliferation, collagen secretion, and mineralization of MC3T3-E1 cells. Furthermore, radiation seems to dose-dependently inhibit the expressions of osteogenesis-related genes of the cells.

Cell Differentiation ; Cell Line ; Cell Proliferation ; Humans ; In Vitro Techniques ; Osteoblasts ; Osteocalcin ; Osteogenesis

1-Alkyl-2-acetylglycerophosphocholine Esterase ; blood ; genetics ; Adolescent ; Asthma ; blood ; enzymology ; genetics ; Child ; Child, Preschool ; Female ; Gene Expression Regulation, Enzymologic ; Genotype ; Humans ; Infant ; Male ; Mutation ; Polymerase Chain Reaction

China ; Haplopappus ; Humans ; Phytotherapy ; Sesquiterpenes

OBJECTIVETo study the effect of rhubarb in treating patients with systemic inflammation reaction syndrome (SIRS) and its mechanism.

METHODSThe 40 patients with SIRS in the treated group were treated with conventional treatment plus rhubarb powder orally or by nasal feeding, the 38 patients in the control group were treated with conventional treatment alone. Serum tumor necrosis factor-alpha (TNF-alpha) was determined by ELISA during the admission and the 3rd day after admission, C-reactive protein (C-RP), complement 3 and 4 (C3, C4) were also determined by auto-scattering turbidimetric quantitative analysis. The parameters were compared between groups and with normal control group.

RESULTSCure rate in the treated group was significantly higher than that in the control group accompanied with lesser occurrence of multiple organ dysfunction syndrome (MODS) and lower mortality. Serum TNF-alpha, C-RP, C3 and C4 in the SIRS patients were increased during admission, which were significantly higher than normal control, but these parameters would be reduced together with the alleviating of symptoms after treatment, particularly after rhubarb treatment.

CONCLUSIONRhubarb could improve the prognosis of patients with SIRS, its major mechanism is that rhubarb has the antagonizing effect against inflammatory cytokines and complements.

C-Reactive Protein ; metabolism ; Child ; Child, Preschool ; Complement C3 ; metabolism ; Complement C4 ; metabolism ; Cytokines ; drug effects ; metabolism ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Phytotherapy ; Pneumonia ; complications ; drug therapy ; Rheum ; Systemic Inflammatory Response Syndrome ; blood ; drug therapy ; Tumor Necrosis Factor-alpha ; metabolism

OBJECTIVETo observe the protective effect of Panax Ginseng (PG), Aconitum Carmichaeli (AC), and their combination (PG-AC) on myocardial ischemia/reperfusion injury in rats.

METHODSRat's ischemia reperfusion injury model was established by ligating left anterior descending coronary artery for 60 min followed by reperfusion for 240 min. Forty male rats were randomly divided into five groups, the sham operation group, the model group, the three treated groups. The three treated groups were treated with PG, AC and PG-AC respectively by given the drugs 10 min before ischemia reperfusion, and to the sham operation group and the model group, saline was given instead. The infarction area, pathologic changes of myocardial tissue (under light and electron microscopy), activity of creatine phosphokinase (CK) and lactate dehydrogenase (LDH) in serum, content of malondialdehyde (MDA) and superoxide dismutase (SOD) in myocardial tissue were observed to evaluate the protective effect of treatment.

RESULTSThe area of acute myocardial infarction was lesser, activity of LDH and CK were lower in the three treated groups than those in the model group. Content of SOD was significantly higher and that of MDA was markedly lower in the former three than those in the model group. Light and electron microscopic examination showed that the necrotic degeneration and pathologic changes of myocardiocytes in the treated groups were significantly milder than that of the model group. As comparing the effect between the three treated groups, PG-AC showed the best, and insignificant difference was shown between PG and AC.

CONCLUSIONBoth PG and AC, and their combination have obviously protective effects on myocardium against ischemia reperfusion injury, which of PG-AC is superior to that of PG or AC used singly.

Aconitum ; Animals ; Drugs, Chinese Herbal ; pharmacology ; Free Radical Scavengers ; pharmacology ; Male ; Myocardial Reperfusion Injury ; pathology ; Panax ; Rats ; Rats, Sprague-Dawley

Objective To observe the EGFR nuclear translocation in cervical carcinoma cell lines after irradiation and its possible role in radiation tolerance.Methods Western blotting was used to detect the nuclear EGFR and cytoplastic EGFR after irradiation.The effect of Cetuximab on expression of nuclear EGFR and survival fractions were investigated.Results After irradiation,compared with control group,the expression of nuclear EGFR protein increased in irradiated cervical carcinoma cell.Cetuximab inhibited the radiation-induced nuclear EGFR expression with decreased survival fractions.Conclusion Radiation could induce EGFR nuclear translocation in cervical carcinoma cell lines and nuclear EGFR might be correlated with radiation tolerance in Cervical carcinoma cell.

Cerebral Palsy ; classification ; etiology ; psychology ; Child, Preschool ; Humans ; Infant ; Intelligence ; Intelligence Tests ; Risk Factors

Objective To construct a Luciferace reporter vector containing the 3'untranslated region (3'UTR) of NFAT5 and measure the correlation between NFAT5 and miR-155.Methods The miR-155 targeting NFAT5 3'UTR was predicted by Target Scan,Mir Base and Pic Tar.NFAT5 and mutant NFAT5 sequence(NFAT5-mu) were then designed and synthesized,and they were cloned into pMIR-REPORTTM Luciferace reporter vector.Human embryonic kidney-293AD (HEK-293AD) cells of the 4th passage were divided into 4 groups according to the random number table.cells in plasimd +miR-155 mimics groups were transfected with pMIR-NFAT5 recombinant plasimid,pRL-Tk plasmid and miR-155 mimics;cells in plasimd + miR-155 mutated groups were transfected with pMIR-NFAT5-mu recombinant plasimid,pRL-Tk plasmid and miR-155 mimics;cells in plasimd + miR-155 control groups were transfected with pMIR-NFAT5 recombinant plasimid,pRL-Tk plasmid and miR-155 Negative control;cells in plasimd +miR-155 inhibitor were transfected with pMIR-NFAT5 recombinant plasimid,pRL-Tk plasmid and miR-155 inhibitor;and were respectively transfected into together by liposome.After culture for 24 h,the luciferase activity was detected by dual luciferase reporter assay system.Results TargetScan,Miranda and PicTar shared the results that NFAT5 has the complementary binding sites with 3'UTR of miR-155.And luciferase reporter vectorwas constructed.Therefore the result of sequencing and double digesting of recombined plasmid were completely correct.Dual-luciferase reporter assay showed that miR-155 possesses a target effect on 3'UTR of NFAT5.Compared to the pMIR-NFAT5 + miR-control group,the luciferase activity of the pMIR-NFAT5 + miR-1 5 5 mimics group was decreased,with statistically significant difference(P＜0.01),while there was no significant difference at other time points(P＞0.05).Conclusion The pMIR-NFAT5 recombinant plasmid and pMIR-NFAT5 recombinant mutated plasmid were confirmed with successful construction.and it was found that miR-155 can target NFAT5 mRNA 3'-UTR.The results provide the experiment data for further disclosing the mechanism of inhalation injury on the level of gene expression.