Objective: To observe the effect of ginkgo biloba extract (GBE) (total ginkgo flavone 50% and qinkgolide 25%) on experimental hyperlipidemic quail.Methods: 60 quail were randomly grouped six:normal group, hyperlipidemic model group and low, middle and high dose GBE groups, as well as lipanthyl group. Except for the normal group, the other five groups were firstly given high fat food for two weeks. Then among them, three groups were treated with GBE(20mg/kg?d, 40mg/kg?d, 80mg/kg?d, respectively) by ig administration, and one group was given lipanthyl(25mg/kg?d)by ig administration as the positve drug, another group was received aqua destillata by ig administration as the hyperlipidemic model. The treatments were consecutively carried out for four weeks. At the end, the vena jugularis externa blood of all the quail was taken and the serum lipid level of each quail was tested.Results: GBE in low dose group could significantly decrease the levels of TC, LDL C( P

Objective:To investigate the expression and clinical significance of cell division cycle 42 (Cdc42) and WASP family verprolin-homologous protein l (WAVE1) in non-small cell lung cancer (NSCLC). Methods:The expression of Cdc42 and WAVE1 was detected in 106 paraffin-embedded NSCLC tissues and 46 adjacent normal lung tissues (control group) using immunohistochemis-try. Results:The expression levels of Cdc42 and WAVE1 was distinctly higher in NSCLC than in the control group. The expression of Cdc42 in NSCLC significantly correlated with tumor differentiation, TNM stage, and lymph node metastasis (P<0.05). The expression of WAVE1 in NSCLC was significantly correlated with TNM stage and lymph node metastasis (P<0.05 or P<0.01). The expression of Cdc42 was significantly correlated with WAVE1 in NSCLC (r=0.469, P<0.01). The 3-year survival rates were significantly lower in the group with high Cdc42 expression (44.16%) than in the low expression group (72.41%;P<0.01). Similarly, the 3-year survival rates were significantly lower among patients with high WAVE1 expression (39.44%) than in those with low expression (77.14%;P<0.01). Lymph node metastasis and the common high Cdc42 and WAVE1 expression were independent prognostic factors for NSCLC. Conclu-sion:The Cdc42 expression is correlated with WAVE1 expression. They may act together and have an important function in NSCLC. The expression of both Cdc42 and WAVE1 in NSCLC tissue may be used as markers for assessing the clinicopathologic features and prognosis.

OBJECTIVETo evaluate the role of p53 gene mutation in colorectal carcinoma and assess the value of peripheral blood p53 single nucleotide polymorphism (SNP) in early diagnosis of colorectal carcinoma.

METHODSNSP in axons 5-8 of p53 gene was detected using ligase detection reaction-polymerase chain reaction (LDR-PCR) in the peripheral blood of 100 patients with colorectal cancer and 100 healthy subjects.

RESULTSThe mutation rate of p53 gene was 24% (24/120) in colorectal carcinoma patients and 0% (0/120) in the healthy subjects (P<0.05).

CONCLUSIONp53 plays an important role in the carcinogenesis of colorectal carcinoma, and SNP analysis for p53 gene can be helpful in early diagnosis of colorectal carcinoma.

Adult ; Case-Control Studies ; Colorectal Neoplasms ; diagnosis ; genetics ; DNA Mutational Analysis ; DNA, Neoplasm ; genetics ; Early Detection of Cancer ; Female ; Humans ; Male ; Mutation ; Polymorphism, Single Nucleotide ; Tumor Suppressor Protein p53 ; genetics

Objective To analysis the human cytomegalovirus (HCMV)and human T lymphotropic virus(HTLV)infection status in Beijing among voluntary blood donors.Methods Randomly selected 2 010 blood samples from five districts and counties of Beijing City to screen HCMV-IgG,HCMV-IgM and HTLV-Ⅰ/Ⅱ antibody by ELISA method.The positive samples were reexamined two times,two test results of samples were positive that were determined positive by ELISA. HTLV positive samples was confirmed by nested PCR.Results The HCMV-IgM and HCMV-IgG positive rates of Beijing blood donors were 2.19% and 92.59%,screened 1 case of anti-HTLV positive by ELISA method,then confirmed to be neg-ative result by nested PCR.The statistics showed that the HCMV-IgG positive rate female blood donors was higher than male (P <0.05).The positive rates of HCMV-IgM and HCMV-IgG among18~25 years old donors was lowest (P <0.05). Positive rate of HCMV-IgG in college students was lower than other occupation blood donars (P <0.05)and education de-gree was independent of HCMV-IgG,HCMV-IgM positive rates (P >0.05).Conclusion In this investigation,2 010 cases of voluntary blood donors from five districts of Beijing were not found in cases of HTLV infection,HCMV infection was prevalent.

Objective:To investigate acute adverse events and pregnancy outcome after vaccination of inactivated COVID-19 vaccine in the first trimester of pregnancy.Methods:The retrospective-prospective cohort study was conducted among pregnant women of 11-13 +6 weeks of gestation who visited the obstetric clinics for prenatal check in Lianyungang Maternal and Child Health Hospital from May to November in 2021, after registration for perinatal health cards in the community. Those who met the inclusion criteria were recruited and were divided into vaccination group and non-vaccination group according to whether they received inactivated COVID-19 vaccine in the first trimester. Women in the vaccination group were further divided into 1-dose group and 2-dose group. Information, including pregnancy-related screening, pregnancy complications, pregnancy outcome and acute adverse events, were collected and compared with independent samples t-test or ANOVA, Kruskal- Wallis H test or Mann-Whitney U test, χ2 test or Fisher's exact probability method. Results:Totally, 105 pregnant women were analyzed in 1-dose group, 90 in 2-dose group, and 194 in non-vaccination group. (1) There were no statistically significant differences in the occurrence of acute adverse events [1-dose group: 2.86% (3/105); 2-dose group: 6.67% (6/90); non-vaccination group: 4.63% (9/194); χ2=1.59; vaccination group was 4.61% (9/195), when compared with non-vaccination group, χ2=0.00], abnormal pregnancy-related screening indicators and abnormal pregnancy outcome among the three groups (all P>0.05), neither between the vaccination and non-vaccination group (all P>0.05). The acute adverse events in these women included fever, pain at the inoculation site, fatigue, local induration and rash.(2) The differences in hypertensive disorders in pregnancy among the three groups were statistically significant [1-dose group: 10.5%(11/105); 2-dose group: 17.8%(16/90); non-vaccination group: 7.7%(15/194); χ2=6.46, P=0.040], and the incidence was higher in the 2-dose group than that in the non-vaccination group (adjusted by Bonferroni, P<0.017). (3) Regarding other pregnancy complications, no difference was found among the three groups (all P>0.05), neither between the vaccination and non-vaccination group (all P>0.05). Conclusion:The risk of acute adverse events and adverse pregnancy outcome is similar in pregnant women who received inactivated COVID-19 vaccine versus those who did not in the first trimester, and regular blood pressure monitoring is recommended for those who received two doses of inactivated COVID-19 vaccine.

Objective To compare the value between CHADS2 score and CHA2 DS2-VASc score on assessing the risk of ischemic stroke in patients with nonvalvular atrial fibrillation.Methods In this retrospective study,nonvalvular atrial fibrillation patients with acute ischemic stroke hospitalized from January 2004 to March 2013 in our department were included.CHADS2 score (range,0-6) and CHA2DS2-VASc score (range,0-9) before acute ischemic stroke was calculated.For both schemes,patients were also classified with scores of 0,1 and ≥ 2 in low-risk,intermediated-risk and high-risk categories,respectively,the difference between the two risk stratification schemes was evaluated by each category.Results A total of 599 patients [320 men,mean age (75.4 ± 9.1) years] were collected.According to CHADS2 score,30(5.0％),132(22.0％) and 437(73.0％) patients were classified in the low-risk,intermediated-risk and high-risk categories,respectively.The corresponding classification by CHA2DS2-VASc score was 6 (1.0％),25 (4.2％) and 568 (94.8％) cases.The number of low-risk category patients (5.0％ vs.1.0％,X2 =22.04,P ＜ 0.001) and in intermediate-risk category patients (22.0％ vs.4.2％,x2 =84.81,P ＜ 0.001,Kappa =0.075) was significantly higher in CHADS2 score group than in CHA2DS2-VASc score group,and the consistence between the two scores was poor (Kappa =0.322).There were less patients classified in the high-risk group by CHADS2 score compared to CHA2DS2-VASc score (73.0％ vs.94.8％,x2 =131.00,P ＜0.001,Kappa =0.257).Conclusion Compared with CHADS2 score,CHA2DS2-VASc score is more valuable in predicting ischemic stroke for patients with nonvalvular atrial fibrillation.

Objective To investigate the characteristics of lung ultrasound images in critical care postoperative patients using BLUE-plus protocol . Methods Two hundred and twenty-two patients who were performed lung ultrasound measurements according to the BLUE-plus protocol within 24 hours admitted to the Department of critical care were included in this study . Data was collected and retrospectively analyzed to compare the proportion of different lung ultrasound signs at different speculate regions ,and to compare the lung ultrasound characteristics of patients undergo different surgeries . Results Excluding A lines ,the most common abnormal lung ultrasound signs at the diaphragmatic points were B7 lines (13 .06％ ) ,and the most common abnormal lung ultrasound signs at the posterior blue points were C signs (28 .60％ ) . The rate of C signs was significantly higher in post spinal cord surgery patients than those in other groups ( P =0 .032) . The rate of B3 lines was significantly higher at bilateral PLAPS points in oxygenation index 100-200 group compared with that in oxygenation index>300 group ( P =0 .011) . The rate of C signs was significantly higher at the left posterior blue point in oxygenation index 200-300 group , and at bilateral posterior blue point in oxygenation index 100-200 and <100 groups compared with those in oxygenation index >300 group ( P =0 .011 , P <0 .001 and P =0 .002) . The rate of pleural effusion was significantly higher at the right posterior blue point in oxygenation index 200 -300 group ,and at bilateral posterior blue point in oxygenation index 100 -200 group compared with those in oxygenation index >300 group ( P = 0 .001 , P < 0 .001 ) . Conclusions Screen with the BLUE-plus protocol can help to find abnormal signs including B3 lines ,B7 lines ,C signs and pleural effusion ,therefore instructs individualized treatment for postoperative patients . Pulmonary edema ,lung consolidation and pleural effusion are three main reasons responsible for hypoxemia in postoperative patients . Intensivists should avoid fluid overload , strengthen airway management ,postural therapy and encourage early mobility in postoperative patients .

OBJECTIVETo compare the ingredients of essential oils of Curcuma wenyujin extracted by supercritical-CO2 fluid extraction and by steam distillation.

METHODGC-MS was applied in this experiment.

RESULTThe ingredients and physical and chemical properties of essential oils of C. wenyujin extracted by supercritical-CO2 fluid extraction and by steam distillation are similar.

CONCLUSIONSupercritical-CO2 fluid extraction is better than steam distillation in extraction time, power consumption, recovery and purity.

Carbon Dioxide ; Chromatography, Supercritical Fluid ; methods ; Curcuma ; chemistry ; Oils, Volatile ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry ; Rhizome ; chemistry ; Volatilization

BACKGROUNDDendritic cell (DC)-based immunotherapy is a new approach and effective for some malignant tumors. The aim of this study is to observe the efficacy and toxicity of immunotherapy with carcinoembryonic antigen (CEA) peptide-pulsed DCs in patients with refractory advanced lung cancer.

METHODSLung cancer patients with high CEA expression were enrolled into this project. Autologous DCs were generated from patients' plastic-adherent peripheral blood mononuclear cells and loaded with CEA 5 days later. Cytokine-induced killer cells (CIK) were cultured from non-adherent peripheral blood mononuclear cells. DCs and CIK were transfused to patients. Responses and toxicities were observed.

RESULTSA total of 22 patients with lung cancer received DCs immunotherapy. DCs doses were 2.5×10⁶-9.6×10⁷ (5.03×10⁶). CIK doses were 3.4×10⁸-46×10⁸. CD3, CD8, NK and IFN-γ levels obviously increased after treatment (P < 0.05). The 1-year survival rate was 68.2% (15/22). Main toxicities were fever and rash.

CONCLUSIONSDCs-based immunotherapy is feasible and safe to patients with lung cancer.

Objective:To discuss the effects of 5-aza-2'-deoxycytidine(5-Aza-CdR)on autophagy and apoptosis of the TPC-1 cells in subcutaneous xenograft tumor tissue of the nude mice,and to clarify its mechanism.Methods:Sixteen female BALB/c nude mice were inoculated with human papillary thyroid carcinoma(PTC)TPC-1 cells in the right axilla to establish the xenograft tumor model.After tumor formation,the mice were randomly divided into control group and experiment group(n=8).The nude mice in control group were given an intraperitoneal injection of saline,while the nude mice in experiment group were given the intraperitoneal injection of 5-Aza-CdR,administered once every other day for four weeks.The growth status of xenograft tumor of the mice in both groups was observed,and the mice were sacrificed after the final administration and the tumor weights of the nude mice in two groups were detected.HE staining was used to observe the pathomorphology of xenograft tumor tissue of the nude mice in both groups;immunohistochemistry was used to detect the expression levels of microtubule-associated protein light chain 3(LC3),B-cell lymphoma 2(Bcl-2),and Bcl-2-associated X protein(Bax)in xenograft tumor tissue of the nude mice in two groups;real-time fluorescence quantitative PCR(RT-qPCR)and Western blotting methods were used to detect the expression levels of LC3,Beclin-1,Bcl-2,Bax,mitogen-activated protein kinase kinase(MEK),extracellular signal-regulated kinase 1(ERK1),extracellular signal-regulated kinase 2(ERK2),phosphorylated EPK1(p-ERK1),and phosphorylated EPK2(p-ERK2)mRNA and proteins in xenograft tumor tissue of the nude mice in two groups.Results:Compared with control group,the tumor volume and weight of the nude mice in experiment group were significantly decreased(P＜0.01).The number of cancer cells of the nude mice in control group was high,and the cells were densely arranged,with irregular shapes,clear nuclear staining,large overlapping nuclei,and lobulation,showing significant pathological mitotic figures consistent with PTC pathological characteristics.The number of cancer cells of the nude mice in experiment group showed a significant decresing trend,and the cells were sparse arrangement,nuclear shrinkage,and less distinct nuclei,with a significant increase in connective tissue.Compared with control group,the expression levels of LC3B and Beclin-1 mRNA and proteins in xenograft tumor tissue of the nude mice in experiment group were significantly increased(P＜0.05)and the ratio of and Bax/Bcl-2 was increased(P＜0.05 or P＜0.01),while the expression levels of MEK,ERK1/2,and p-ERK1/2 mRNA and proteins were significantly decreased(P＜0.05 or P＜0.01).Conclusion:5-Aza-CdR can inhibit the growth of TPC-1 cells in subcutaneous xenograft tumor tissue of the nude mice,induce the autophagy,and promote the apoptosis of the tumor cells.The mechanism may be related to the inhibition of the mitogen-activated protein kinase(MAPK)/MEK/extracellular signal-regulated kinase(ERK)signaling pathways.