OBJECTIVETo explore the inhibition and molecular mechanism of icaritin (ICT) combined doxorubicin (DOX) on human osteosarcoma MG-63 cells in vitro.

METHODSThe control group, ICT groups (10, 20, 40, 80, and 160 µmol/L), DOX groups (1, 2, 4, 8, and 16 µg/mL), and combination groups (20 µmol/ L ICT +1 µg/mL DOX, 20 µmol/L ICT +2 µg/mL DOX, 20 µmol/L ICT +4 µg/mL DOX, 40 µmol/L ICT +1 µg/mL DOX, 40 µmol/L ICT +2 µg/mL DOX, 40 µmol/L ICT +4 µg/mL DOX, 80 µmol/L ICT +1 µg/mL DOX, 80 µmol/L ICT +2 µg/mL DOX, 80 µmol/L ICT +4 µg/mL DOX) were set up. Human osteosarcoma MG-63 cells were respectively cultured and their effects on morphological changes were observed using inverted phase contrast microscope after 24-and 48-h intervention. The cell proliferation inhibition rate of each group was de- termined using CCK-8, and IC50 calculated. The MG-63 apoptosis rate was detected using Annexin V-FITC/ PI double dye flow cytometry. Expression levels of bcl-2, caspase-3, and p21 were detected using RT-PCR.

RESULTSICT and DOX could obviously inhibit the proliferation of MG-63 cell. Along with ICT concentration increasing from 10 µmol/L to 160 µmol/L, the cell proliferation inhibition rate also increased gradually from 9.67% ± 3.62% to 89.18% ± 9.66%. The IC50 was 46.93 µmol/L and 3.87 µg/mL respectively. ICT and DOX could cause either early or late stage apoptosis, down-regulate Bcl-2 gene expression, and up-regulate gene expressions of Caspase-3 and p21 respectively (P < 0.05). Aforesaid changes were more obviously seen in combination groups than in lCT groups and DOX groups (P < 0.05).

CONCLUSIONCT combined DOX had additive or synergistic inhibition effect for the proliferation of osteosarcoma MG-63 cells, which might be related with regulating gene expressions of bcl-2, caspase-3, and p21.

Apoptosis ; Bone Neoplasms ; metabolism ; pathology ; Caspase 3 ; metabolism ; Cell Line, Tumor ; drug effects ; Cell Proliferation ; Cyclin-Dependent Kinase Inhibitor p21 ; metabolism ; Down-Regulation ; Doxorubicin ; pharmacology ; Drug Synergism ; Flavonoids ; pharmacology ; Humans ; Osteosarcoma ; metabolism ; pathology ; Proto-Oncogene Proteins c-bcl-2 ; metabolism

OBJECTIVETo observe the effect of Bushen Yizhi Recipe (BSYZR) on neurotransmitter release in A beta segment neurotoxin induced NG108-15 cellular model of Alzheimer disease (AD).

METHODSThe levels of choline acetyltransferase (ChAT) activity, synapsin and functional synapse formation rate in the cellular model treated with BSYZR containing serum were determined by Western blot analysis, immunoradiometric assay and electrophysiologic technique.

RESULTSBSYZR containing serum treatment could cause increase of ChAT activity and synapsin level in model cells, as compared with those in normal control model cells treated with non-drug containing serum, it also could regulate the release capacity of transmitter and raise the functional synapse formation.

CONCLUSIONBSYZR could reduce the reaction of cell to A beta neurotoxin, indicating that it could be antagonistic to the pathological development of AD by means of raising the neurotransmitter release capacity.

Alzheimer Disease ; metabolism ; pathology ; Amyloid beta-Peptides ; metabolism ; Animals ; Cell Line ; Choline O-Acetyltransferase ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Neurotoxins ; pharmacology ; Neurotransmitter Agents ; metabolism ; Random Allocation ; Rats ; Rats, Wistar ; Synapsins ; metabolism

To investigate the adolescent self-perceived health problems during devel-opment and their demand for service needs of health care ,thus enhancing the healthy level of adolescents . [ Methods] A questionnaire survey , focusing on self-perceived physiological health and demand for health service , was conducted among 1 555 adolescents aged 10 -18 and 1 482 parents in Jiading District . [ Results] The incidence of self-reported frequent physiological problems within one year was 77.8%.A total of 51.7%students felt confused with changes in sexual characteristics during puberty .The rate of self-perceived reproductive system symptoms was 16.9%.Prevalence of self-reported early/late puberty timing was 5 .3%, while few students were seeking help towards these health issues . [ Conclusion ] The health service needs of adolescents are versatile , and there is a glaring discrepancy in different feature groups .Medical and health care institutions need to think deeply of how to timely and effectively provide adolescent health services and improve the quality of care in practice .

To assess the clinical effect and safety of Chinese traditional medicine injection combined with radiotherapy for esophageal cancer. The relative randomized controlled trials (RCTs) of Chinese medical injections (CMI) combined with radiotherapy as well as simple radiotherapy for esophageal cancer were searched from PubMed, Cochrane Library, EMBASE, Chinese Biomedical Literature Database(CBM), China National Knowledge Infrastructure (CNKI), Wanfang Database and VIP Database as at September 2014. Two researchers completed the data extraction and quality evaluation independently. The data were analyzed by GeMTC 0.14.3 and Stata 12. 0 software. Finally, 43 RCTs involving 3 289 patients were finally included. The star network was constructed by different comparison groups. The results of network meta-analysis showed that the seven CMIs combined with radiotherapy was superior to simple radiotherapy in the treatment of esophageal cancer in efficacy, quality of life, and reduction in the incidence of nausea and leucopenia, but with no significant difference among the seven CMIs. Probability ranking result showed a great possibility for Shenqi Fuzheng and astragalus polysaccharide injections in improving the overall response rate and quality of life, which were followed by cinobufagin and kangai injections. However, only one study was included for Shenqi Fuzheng and astragalus polysaccharide injections. Therefore, cinobufagin or kangai injections were preferred in improving the overall response rate and quality of life. Aidi or compound sophora injections were better than other CMIs in reducing? the incidences of nausea (III-IV) and leukopenia. More RCTs of Shenqi Fuzheng and astragalus polysaccharide injections combined with radiotherapy for patients with esophageal cancer were expected in the future to confirm our results. Moreover, study findings will be reported, particularly for the adverse events in radiotherapy for esophageal cancer.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Combined Modality Therapy ; Drugs, Chinese Herbal ; administration & dosage ; Esophageal Neoplasms ; drug therapy ; radiotherapy ; Female ; Humans ; Male ; Middle Aged ; Young Adult

OBJECTIVETo study the role of N-methyl-D-aspartate receptor and Ca(2+) in acute intoxicated encephalopathy induced by 1, 2-dichloroethane (1, 2-DCE) in vitro.

METHODSNeurocytes of new born rats were cultured in vitro, which were administered with different doses of 1, 2-DCE, and NMDAR and Ca(2+) antagonists including Ketamine and Nimodiping respectively. The cell morphologic structures were observed under light microscope, and its proliferation was detected by Cell Counting Kit-VIII.

RESULTS1, 2-DCE could damage the normal morphological structure of neurocytes: the cell body swelled and broke down, the karyon slurred or disappeared, the axone became shorten and thick, connection of neurocytes was reduced, the cell membrane was half-baked, injury of neurocytes became severer with the increase of the dose of 1, 2-DCE. There was no statistical difference in the proliferation of neurocytes between every 1, 2-DCE groups (P > 0.05), but there was significantly statistical difference between 1, 2-DCE groups, the control group, and the retarder groups (P < 0.01).

CONCLUSION1, 2-DCE can damage the normal morphological structure of neurocytes, and the damage will become severer with the increase of the dose of 1, 2-DCE. However, the cell morphologic structures and proliferation of antagonist groups are much better than those in the 1, 2-DCE groups.

Animals ; Calcium ; antagonists & inhibitors ; physiology ; Cells, Cultured ; Ethylene Dichlorides ; toxicity ; Neurons ; drug effects ; pathology ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate ; antagonists & inhibitors ; physiology

OBJECTIVETo establish a new method based DNA chip technique for detecting HCV genotypes.

METHODSGenotyping probes were designed according to the sequence of HCV 5' NCR to generate DNA chip. The probes on DNA chip contains 5 major genotypes and 8 subtypes. The DNA fragment amplified by labeling Cy5 fluorescence was hybridized with DNA chip.

RESULTSFifty-five out of 65 isolates detected by DNA chip belonged to 1b- DNA sequencing of form a part of the isolates was used as the control. The results of both were completely consistent.

CONCLUSIONThe method is simple and rapid with high specificity and sensitivity. It can be applied in detection of HCV RNA and genotypes.

5' Untranslated Regions ; genetics ; Genotype ; Hepacivirus ; classification ; genetics ; Humans ; Nucleic Acid Hybridization ; Oligonucleotide Array Sequence Analysis ; methods ; Polymerase Chain Reaction ; RNA, Viral ; blood ; Sensitivity and Specificity

Objective To evaluate the association of cervical cancer and the G/C single nucleotide polymorphism at codon 72 in p53 gene exon -4 in Chinese population.Methods Literatures were searched in CNKI,VIP,CBM, PubMed,EMBase,the Cochrane Library (Issue 1,2015),WanFang Data Database (1980—2015)with computer. Results Thirteen studies involving 1 780 cervical cancer patients and 1 5 17 healthy volunteers were included.According to the situation of the HPV infection in research object,thirteen studies were divided into two subgroups.The results of meta-analyses in the subgroup of non-HPV infection showed that the Chinese women having the genotype G/G presented no increased relative risk compared to that with the genotype C/C(OR=0.980,95%CI:0.558 -1.723).The allele G showed no increased relative risk compared to the allele C (OR=1.070,95%CI:0.789-1.449)The results of meta-analyses in the subgroup of HPV infection showed that the Chinese women having the genotype G/G presented no increased relative risk compared to that with the genotype C/C(OR=0.891,95%CI:0.213 -3.722).The allele G showed no increased relative risk compared to the allele C (OR =0.981,95%CI:0.493 -1.951 ).Conclusion This meta -analysis demonstrates that G/C single nucleotide polymorphism at codon 72 in p53 gene exon-4 were not associated with cervical cancer in Chinese women.

Objective To evaluate the role of late course accelerated fractions.ted irradiation(LCAF) combined with concurrent chemotherapy in the management of esophageal carcinoma.Methods From March 1998 to July 2000,111 eligible patients were randomized into LCAF alone group(LCAF,57 patients)or LCAF plus concurrent chemotherapy group(LACF-CT,54 patients).The radiotherapy regimen was identical in the two groups,consisting of conventional fractionation in the first 2/3 course and accelerated fractionation in the second 1/ 3 course to a total dose of 68.4 Gy/41 Fx/44 d.Chemotherapy regimen consisted of four eycles of cisplatin 25 mg/ (m~2?d)plus fluorouracil 600 mg/(m~2?d)on day 1 to 3 every 4 weeks and was delivered on the first day of radiotherapy.Results The median follow-up time was 67.1 months(range 47.6-76.4 months).The 1-,3-,5- year survival rate was 67%,44% ,40% and 77%,39% 28% in LACF-CF and LEAF group,respectively(P =0.310).Grade 3+4 acute side-effact was 42% and 25% in LCAF-CT and LCAF group,respectively(P＜0. 05),with 3 treatment-related deaths in the LCAF-CT group.Conclusions Late course accelerated fractionated irradiation combined with concurrent chemotherapy has a trend towards improving the survival,at the cost of increasing acute side-effect.Its role needs further confirmation by larger sample studied in randomization.

OBJECTIVETo explore the indications and effect of surgical resection for hepatic metastases from colorectal adenocarcinoma and to discuss the implications of clinicopathologic features on the prognosis.

METHODSA retrospective study of 61 patients undergoing hepatectomy for metastatic tumors from colorectal adenocarcinoma from January 1991 to December 2000 in our hospital was performed retrospectively.

RESULTSThe 1-, 3- and 5-year survival rates after hepatic resection were 72.13%, 58.10% and 26.01% respectively. Complications occurred in 8 cases. Tumor pesudomembrance was found in 20 cases. Dukes stage, pathologic type,the number of hepatic metastases and tumor pesudomembrance were all significant factors for prognosis after surgery (P< 0.05). The 3-year survival rate of the patients with postoperative comprehensive treatment was higher than that with non-postoperative treatment (P< 0.05). The size of hepatic metastases and the resecting time didn't affect the prognosis (P > 0.05).

CONCLUSIONThe hepatic metastases from colorectal cancer should be treated by a surgical approach. The earlier stage of clinical pathology,higher differentiation extent, metastases less than 3, the formation of pesudomembrance of the metastatic tumor and the postoperative comprehensive treatment predict a better survival.

Adult ; Aged ; Colorectal Neoplasms ; pathology ; surgery ; Female ; Humans ; Liver Neoplasms ; secondary ; surgery ; Male ; Middle Aged ; Neoplasm Metastasis ; Neoplasm Staging ; Prognosis ; Retrospective Studies ; Survival Rate

OBJECTIVETo compare the difference of protein expression in the supernatant of heat injured keratinocytes (KC) and normal KC.

METHODSA model of heat injured KC was produced in vitro. The supernatant of normal KC and heat injured KC was collected after culture for 12 hours, and was ultrafiltered and lyophilized to get the protein. The protein sample was separated by immobilized pH gradient based two dimensional gel electrophoresis (2-DE). The gel was stained and the different expression of protein was analyzed using ImageMaster 2D analysis software.

RESULTS(1) Average protein spots were 1,898 +/- 113, 1,877 +/- 97 in the supernatant of normal and heat injured KC and 1,118 protein spots could be used for statistical analysis. (2) Statistical result showed that 26 protein spots were significantly different between the two groups. 16 protein spots were higher in the supernatant of normal KC and then 10 protein spots were lower in the normal group. (3) 16 protein spots, which included 10 kinds of proteins, were identified successfully as different spots. Lower expression proteins were alpha-enolase, actin cytoplasmic 2, peroxiredoxin-4, phosphoglycerate mutase 1, G protein-regulated inducer of neurite outgrowth l in the supernatant of heat injured KC. Higher expression proteins in heat KC were purine nucleoside phosphorylase, tumor necrosis factor ligand superfamily member 10, proteasome subunit alpha type-7, UDP-glucose 6-dehydrogenase in the supernatant of heat injured KC.

CONCLUSIONSThe result indicated that there are some significant different expression proteins in the supernatant of normal KC and heat injured KC. These findings provide new data for screening major molecules of tissue repair and finding the mechanism of wound repair.

Cells, Cultured ; Electrophoresis, Gel, Two-Dimensional ; Heat-Shock Response ; Hot Temperature ; Humans ; Keratinocytes ; metabolism ; Proteome ; metabolism