Objective To evaluate the prevalence of depression and anxiety in the middle and elderly patients with chest pain from department of emergency.Methods Totally 1200 patients suffering from chest pain were enrolled from July 2009 to August 2009.All patients were scored by self-rating depression scale (SDS) and self evaluation anxious scale (SAS).Results 383 cases of 912 patients(42.0％) with coronary heart disease (CAD) and 58 of 288 patients (20.1％) without CAD had depression,with a statistically significant difference (x2 =44.98,P=0.002).Odds ratio (OR) for CAD in patients with depression was 2.5,with 95 ％ confidence interval (CI) of 1.0-5.0 (P ＜0.05).Conclusions There is high prevalence of depression and anxiety as independent risk factors for CAD.

Objective To investigate the effect of human hepatocellular carcinoma HepG2 cell-derived Exosome on the differentiation of mesenchymal stem cells(MSC)into cancer-associated myofibroblasts(CAF)and the impacts of CAF on liver cancer cell proliferation,migration,and invasion. Methods The protein expression of HepG2 cell-derived Exosome was detected by Western blotting. MSCs were separated from human adipose tissue and cultured with HepG2 cell-derived Exosome(100 ng/nl)to initiate differentiation. The expressions of mesenchymal markers and several interleukins were also detected by Western blotting. HepG2 cells were co-cultured with the conditioned media(CM),in which HepG2 Exosome induced the differentiation of MSC into CAF. The expressions of epithelial and mesenchymal markers were detected by real-time polymerase chain reaction(PCR)and Western blotting. Cell proliferation was assessed using MTS assay. Transwell chambers were used in the in vitro migration and invasion assay. Results HepG2 cell-derived particles expressed CD63,70 kilodalton heat shock proteins,and 90 kilodalton heat shock proteins. With the treatment of HepG2 cell-derived Exosome,the expressions of mesenchymal marker α-smooth muscle actin,fibroblast activation protein α,interleukin(IL)-6,IL-8,and IL-1β were up-regulated,while vascular endothelial growth factor had no significant change. The conditioned media which HepG2 Exosome induced MSC differentiation CAF(CAF-CM)could significantly promote HepG2 cells proliferation(1.075±0.104),compared to BSA control(0.874±0.066,P=0.023)and MSC-CM(0.649±0.034,P=0.0005). CAF-CM could significantly enhance cell migration [(42.5±9.1) cells vs.(18.5±3.1) cells,P=0.001] and invasion [(29.0±3.5) cells vs.(13.1±3.7) cells,P=0.009] compared to its control group. Moreover the conditioned medium which HepG2 Exosome induced MSC to differentiate into CAF could also promote the expressions of mesenchyme-related genes Smad interacting protein 1(P=0.040),β-catenin(P=0.038),fibronectin(P=0.029),and Vimentin(P=0.013)and inhibit the expression of epithelial related genes zonula ocdudens-1(P=0.010).Conclusions Exosome extracted from HepG2 cells can induce human adipose-derived MSC to differentiate into cancer-associated myofibroblasts. CAF-like cells can promote the migration of the liver cancer cell line HepG2.

Objective In order to offer a noninvasive and objective examination method for assessing the clinical diagnosis and eurative criterion of concussion patients, the patients color three - dimensional transcranial doppler( 3D - TCD) characteristic at deferent phases, parameter and clincal manifestation were studied Method Parameter of Median Cerebral Artery(MCA), Base Artery(BA), the average peak forwand velocity of cerebral blood flow, train figure were tested by 3D - TCD within 24 hours, 3 - 6 days and at the end of treatment, respectively. The results were compared with clinical diagnoses and curative criterion. Result Among 135 patients who had clinically diagnosed concussion, agreeable diagnoses 101 cases, basically agreeable diagnooses 12 cases, disagreeable diagnosis 22 cases(16. 2%) .At the end of treatment, according to clinical determination 96 cases(71.1%) were cured, 39 cases(28.9%) were improved. Wave train character, figure and diagnoses prameter of cerebral spasm caused by concussion were suggested Conclusion To be one of the diagnostic bases and curative criterion, 3D- TC D technology is performable. Meanwhile, it is a new testing objective technique for assessing curative and determining prognosis.

OBJECTIVETo explore an ideal method for comprehensive correcting of the unilateral cleft lip nasal defomity.

METHODSThe operation includes replacement of the displaced tissue, excision of the deviated septum, and correction of the deviated septum and the deformity of the lower nose. The excised nasal septum was grafted on the alar base, the nasal columella and the nasal tip.

RESULTS32 patients were treated with this method from 1994 to 1999. Postoperative fellow-up for 1-3 years demonstrated satisfactory results.

CONCLUSIONThrough excision and grafting of the nasal septum, the deviated septum and the deformity of the lower nose are effectively corrected. Complete undermining and replacement of the displaced structure are the basis of correcting the cleft lip nasal deformity.

Adolescent ; Adult ; Cartilage ; transplantation ; Cleft Lip ; surgery ; Female ; Humans ; Male ; Nasal Septum ; transplantation ; Nose ; abnormalities ; surgery

Objective To investigate the therapeutic effect of exosomes extracted from human adipose-derived mesenchymal stem cells(hAMSCs) on traumatic brain injury (TBI) and its possible mechanism.Methods Mesenchymal stem cells(MSCs) were isolated from healthy human adipose tissue and the exosomes were extracted by ultrafiltration.Rats were divided into four groups: sham group, PBS control group, MSCs treatment group and exosomes treatment group.24 h After TBI, the treatment group was locally injected along the lesion area, 30 μL of PBS, 2×105 MSC, 25 μg protein of exosomes respectively, the total volume was 30 μL.We performed the Modified Neurological Severity Score(mNSS) and the forelimb Foot-Fault Test in all rats before injury and at 1, 3, 7, 10, 13, 16, 21 and 30 days after TBI.The rats were sacrificed at 3 and 7 days after TBI respectively,total RNA was extracted from rat brain tissue.The expression of TNF-α and IL-1β were detected by quantitative PCR.The rats were also killed at 30 days after TBI for testing the neuronal apoptosis in lesion area by tunel-neun double imm-unofluorescence.Results Exosomes treatment significantly promotes the recovery of neurological deficits caused by TBI,and the therapeutic effect is similar to MSCs, its possible mechanism may be the inhibition of the acute inflammation and the reducing of the neurons apoptosis after TBI.Conclusions Exosomes extracted from human adipose-derived mesenchymal stem cellshas promoted neurological functionrecovery after traumatic brain injury, which will provide a new and safer TBI treatment for clinical practice.

Objective To investigate the mechanisms of ureaplasma urealyticum(Uu)resistance to macrolide antibiotics.Methods Twenty strains of clinical isolates of Uu with variable resistance to macrolides and reference strain ATCC 27618 were examined for mutations in 23SrRNA.Results As compared with the sequence of reference strain ATCC 27618 and GenBank,three mutations were found in 23SrRNA of Uu clinical isolates.C2243N(TorC)was found in the 23SrRNA in 5 strains with the phenotype resistance to roxithromvcin and azithromycin.A2149C and A2181T were found in the 23SrRNA in 9 strains with the phenotype resistance to roxithromycin and midrange resistance to azithromycin,and 6 strains with the phenotype of sensitivity to roxithromyein and azithromycin.Conclusions The mechanisms of Uu resistance to roxithromycin and azithromycin may be related with the mutations in 23SrRNA.It may warrant further investigation.

Objective To identify the main etiologies of emergency room (ER) patients with chest pain or equivalent syndrome.Methods This was a prospective and cross-sectinal survey of ER patinets with chest pain or equivalent syndrome in 17 medical centre in Beijing,China from July to August 2009.Data was collected by structured interviews and medical record reviews.The mean follow up period was 30 days.Results A total of 5666 patients were enrolled in the study (2663 males and 3303 females) and the mean age was 58.1 ± 18.4years.Their final diagnoses were:coronary heart disease 1506 ( 27.4％ ),acute heart failure 149 ( 2.6％ ),pericarditis 4 ( 0.1％ ),pulmonary embolism 11 ( 0.2％ ),aortic dissection 8 ( 0.1％ ),acute cerebrovascular disease 431 ( 7.6％ ) and non-cardic chest pain 2538 ( 44.9％ ).Thirty-seven cased died and 275 cases hospitalized again 30 days later,4.9％ patients with cornary heart disease had symptoms at their presentation.Conclusion Special vigilance and thorough coronary artery evaluation are needed for all patients with chest discomfort or respiratory distress in the ER,even for patients without chest pain.

To investigate the effects of curcumin on mitochondrial dysfunction induced by high glucose(40 mmol/L glucose, 24 h)in L6 cells, curcumin(10, 20, 40 μmol/L)was administered for 24 h after high glucose culture. The effects of curcumin on the mitochondrial dysfunction were evaluated by mitochondrial membrane potential, reactive oxygen species(ROS), ATP content and mtDNA copy number. The mRNA and protein expression of uncoupling protein 2(UCP2), PPARγ coactivator 1α(PGC-1α)and sirtuin-1(Sirt3)were also determined. As improvement of high glucose damage, curcumin significantly raised mitochondrial membrane potential and ATP content, and decreased ROS level. Curcumin significantly ameliorated the down regulation of UCP2 yet with little effect on mtDNA copy number and PGC-1α and Sirt3 expression. In conclusion, curcumin could significantly ameliorate mitochondrial dysfunction in L6 cells induced by high glucose, which involved the mechanism of multiple antioxidants.

Objective To investigate the association between nonalcoholic fatty liver disease(NAFLD)and osteoporosis in elderly patients.Methods A total of 824 patients,aged≥60 years,who were hospitalized in Department of Gerontology,Peking University People's Hospital,from June 2016 to April 2023 were enrolled,with 398 patients in the osteoporosis group and 426 in the non-osteoporosis group.Related data were collected from all subjects,including general information,blood biochemical parameters,liver ultrasound,and bone mineral density measured by dual-energy X-ray examination.The independent-samples t test was used for comparison of normally distributed continuous data between two groups,and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups;the chi-square test was used for comparison of categorical variables;a binary Logistic regression analysis was used to investigate the independent risk factors for osteoporosis.Results Compared with the non-osteoporosis group,the osteoporosis group had a significantly higher age,a significantly higher proportion of female patients or patients with diabetes,and a significantly lower body mass index(all P<0.05).The osteoporosis group had a significantly higher proportion of patients with NAFLD than the non-osteoporosis group(36.2%vs 24.6%,χ2=12.878,P<0.001).Compared with the non-osteoporosis group,the osteoporosis group had significantly lower levels of hemoglobin,uric acid,and albumin and significantly higher levels of total cholesterol,low-density lipoprotein cholesterol(LDL-C),bone-specific alkaline phosphatase,and tartrate-resistant acid phosphatase(all P<0.05).The binary Logistic regression analysis showed that old age(odd ratio[OR]=1.040,95%confidence interval[CI]:1.015-1.066,P=0.002),female sex(OR=4.089,95%CI:2.607-6.411,P<0.001),NAFLD(OR=1.697,95%CI:1.076-2.678,P=0.023),diabetes(OR=1.509,95%CI:1.008-2.260,P=0.046),and LDL-C(OR=1.431,95%CI:1.010-2.029,P=0.044)were independent risk factors for osteoporosis in elderly patients.Considering the impact of diabetes on the research findings,a subgroup analysis was performed for the patients without diabetes,and the results showed that NAFLD(OR=1.573,95%CI:1.015-2.439,P=0.043)was an independent risk factor for osteoporosis in the elderly patients without diabetes.Conclusion NAFLD,old age,and female sex are independent risk factors for osteoporosis in elderly patients.

The potential antiviral and anti-inflammatory mechanism of Anti-601 Mixture, a traditional Chinese medicine compound preparation, was studied by network pharmacology and molecular docking. The chemical constituents and targets of astragali radix, phellodendri chinensis cortex, rhei radix et rhizome, isatidis radix and lonicerae japonicae flos in Anti-601 Mixture were searched by Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP). The genes corresponding to the target were searched through the UniProt database, and the drug-compound-target (gene) network was constructed by Cytoscape 3.7.2. Then the functional enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were conducted through Webgestalt to predict the mechanism. The network of drug-compound-target (gene) contained 5 drugs, 100 compounds and 207 targets. Functional enrichment analysis resulted in 717 GO items (P≤0.05), among which 240 were biological process (BP) items, 240 were cell composition (CC) items, and 237 were molecular function (MF) items. The 209 signaling pathways were obtained by enrichment screening of KEGG pathway (P≤0.05). Molecular docking showed that the active ingredients of Anti-601 Mixture, such as Stigmasterol, quercetin, luteolin, acacetin, β-sitosterol, kaempferol,had strong affinity with PTGS2 target. Active compounds in Anti-601 Mixture may regulate multiple signaling pathways including advanced glycation end products and its receptor (AGE-RAGE), IL-17, tumor necrosis factor (TNF) through target of prostaglandin-endoperoxidase synthase 2(PTGS2), thus playing an antiviral and anti-inflammatory role.