Objective:To investigate the effects of Genistein and Tyrphostin AG1478 on the proliferation of colon cancer cell HT-29 and its possible mechanism.Methods:The effect of two tyrosine kinase inhibitors (TKIs) on HT-29 cell lines was studied by using MTT assay.Immunocytochemical staining was performed with PCNA polyclonal antibody in HT-29 cells.Western blot assay was used to detect the expression of ERK-1 and pERK.Results:Both Genistein and Tyrphostin AG1478 significantly inhibit the growth of HT-29 cells and showed concentration dependence.Two tyrosine kinase inhibitors suppressed PCNA expression.Western blot revealed that Genistein and Tyrphostin not inhibit ERK-1 expression but inhibit phosphorylation of ERK.Conclusion:Tyrosine kinase inhibitors Genistein and Tyrphostin AG1478 can inhibit the growth of HT-29 colon cancer cells,the anti-proliferation mechanism may be related to down-regulate the expression of pERK.

Objective:To investigate the relationship of H pylori with cholecystolithiasis,to collect the evidence of Hp existing in biliary tract,and to study the detective method of Hp DNA in billiary tract.Methods:Hp which existing in bile,mucosa and gallstone of 120 cholecystolithiasis patients were cultured according to the literature.Then they were amplified by the primer of Ure A and cagA.Amplified products were analyzed.Results:All of the 120 samples were negative.No Hp grew in the medium.No Hp DNA and Hp Cag A antibody were found with PCR method.Conclusion:(1) It was restricted by many factors that Hp DNA in bile and gallstone wereexamined with PCR.(2) Hp maybe entered biliary tract regressively through Oddi's sphincter andhad no relationship with cholecystolithiasis.

Objective To study the estrogenic effects of DDT-derivative pesticides. Methods Using a recombinant human estrogen receptor gene yeast cell to estrogenic activity of DDT pesticides. The different concentrations of 17?-estradiol and individual DDT isomers and homologue such as p,p′-DDT, o,p′-DDT, p,p′-DDD and p,p′-DDE and their mixtures were added to yeast cultures, then estrogenic activity was measured by quantification of ?-galactosidase after 4 hours culture. Results DDT showed the ability to play the estrogenic effects like a ligand to bind hER and the dose dependent model existed between the estrogenic effects and the DDT concentration. The relative activity of o,p′-DDT, EC50=5.30?10-7mol/L, was higher and the estrogenic effects of isomers exhibited synergism, AI=1.5. The relative activity of p,p′-DDE , EC50=9.28?10-5mol/L, was lower and the antagonistical action between the homologues was found, AI=-1.38. DDT pesticides presented a synergism, the regression equation was =-2.600 6x2-28.079x-21.757,EC50 was 2.57?10-8mol/L, AI=0.83. Conclusion DDTs are ER mediated environmental estrogens, p,p′-DDT, o,p′-DDT, p,p′-DDD and p,p′-DDE show a synergic effect.

Objective To discuss combined detection of pleural biopsy under medical thoracoscopy and pulmonary serum tumor markers in diagnosis of pleural effusion with unknown reason.Methods 76 patients with pleural effusion caused by unknown reason from January 2014 to March 2016 were retrospectively analyzed. Pleural biopsy was conducted under medical thoracoscopy and sent for pathological examination, and 10 ml venous blood was collected from these patients upon admission for testing serum tumor markers (CEA, SCC-AG, ProGRP and CYFRA21-1).Results Among the 76 patients, there were 32 cases with benign lesions (14 with pulmonary tuberculosis, 9 with inlfammatory lesions, 6 with granulomatous inlfammation, 2 with empyema and 1 with hamartoma) and 44 cases with malignant lesions (18 with adenocarcinoma, 13 with squamous carcinoma, 6 with small cell lung cancer, 3 with adeno-squamous carcinoma, 2 with mesothelioma, 1 with large cell carcinoma and 1 with thymoma). The detection of serum tumor markers showed statistically significant differences in the levels of CEA, SCC-AG, ProGRP and CYFRA21-1 in serum between the malignant pleural effusion group and benign pleural effusion group (P = 0.021,P = 0.006,P = 0.003 andP = 0.010). The levels of various serum tumor markers in the malignant pleural effusion group were obviously higher than those in the benign pleural effusion group. According to the pathological results, patients with pleural effusions not caused by lung cancer (2 with mesothelioma and 1 with thymoma) were eliminated from 44 patients with malignant pleural effusions. The rest 41 patients with pleural effusions caused by lung cancer were divided into non-small cell lung cancer and small cell lung cancer according to the pathological types. The results showed that there were statistically signiifcant differences in the levels of CEA, ProGRP and CYFRA21-1 between non-small cell lung cancer and small cell lung cancer (P = 0.036,P = 0.005 andP = 0.008), while there was no statistically signiifcant difference in the level of SCC-AG (P = 0.811).Conclusions Due to high detection rate and high accuracy in detecting pleural effusions caused by unknown reason, medical thoracoscopy is of great signiifcance, especially for the diagnosis of malignant pleural effusions of pleural metastases. However, serum indicators may provide important reference values for us before the pathological results are available. Thus, it is an important means of diagnosing malignant pleural effusions caused by lung cancer and should be promoted in clinic.

OBJECTIVE:To establish a method for simultaneous determination of the contents of ligustroflavone,specnuezhe-nide,demethylwedelolactone and wedelolactone in Zibu ganshen pill. METHODS:Dual-wavelength HPLC was performed on the column of Elite C18 with mobile phase of acetonitrile-0.5%acetic acid(gradient elution)at flow rate of 0.9 ml/min,column temper-ature was 25 ℃,detection wavelengths were 224 nm(0-30 min) and 351 nm (30-50 min),and the injection volume was 20 μl. RESULTS:The linear range was 6.75-135.00μg/ml(r=0.999 5)for ligustroflavone,6.54-130.80μg/ml(r=0.999 8)for specnuezhe-nide,4.90-98.00μg/ml(r=0.999 4)for demethylwedelolactone and 6.42-128.40μg/ml(r=0.999 6)for wedelolactone;RSDs of pre-cision,stability and reproducibility tests were no more than 1.25%;average recoveries were 96.15%-99.96%(RSD<2%,n=6). CONCLUSIONS:The method is rapid,sensitive and accurate,and can be used for the contents determination of ligustroflavone, specnuezhenide,demethylwedelolactone and wedelolactone in Zibu ganshen pill.

Objective:To develop an HPLC-DAD-ELSD method for the determination of nitidine chloride, 5-ethoxychelerythrine, bergeninum and ardisiacrispin A in Shangtong tinctures ( STD) . Methods: A Hypersil C18 column was used as the chromatographic column, the flow rate was 0. 8 ml·min-1 . For nitidine chloride and 5-ethoxychelerythrine, the mobile phase A consisted of acetoni-trile,the mobile phase B consisted of 0. 1% formic acid-triethylamine (pH 4. 5),and the DAD detection wavelength was at 273 nm. For bergeninum and ardisiacrispin A, the mobile phase consisted of methanol-water(25∶75), the temperature of drift tube was set at 95℃, and the gas flow (N2) was set at 2. 5 SLPM·min-1. Results:There was a good linear relationship between the concentration and peak area for nitidine chloride and 5-ethoxychelerythrine within the range of 0. 021-0. 426 μg (r=0. 999 5) and 0. 075-1. 494 μg (r=0. 999 8), respectively. The average recovery was 99. 22%(RSD=0. 64%) and 98. 61%(RSD=0. 46%), respectively. There was a good linear relationship between the concentration and peak area for bergeninum and ardisiacrispin A within the range of 0. 215-4. 304 μg(r=0. 999 3) and 0. 286-5. 728 μg(r=0. 999 7), respectively. The average recovery was 99. 15%(RSD=0. 77%) and 99. 25%(RSD=0. 56%) accordingly. Conclusion:The method is accurate, sensitive and reproducible, and can be used in the de-termination of nitidine chloride, 5-ethoxychelerythrine, bergeninum and ardisiacrispin A in STD.

To explore the feasibility and effects of Cook balloon cervical dilator on full-term nulliparous parturients under epidural analgesia.The observation group (n =40) received Cook balloon cervical dilation under epidural analgesia.However, the control group (n =40) had no epidural analgesia.Latent phase of labor was shorter in observation group than that in control group [(198.7 ± 65.7) vs.(242.9 ± 78.9) min, P ＜0.05].And the incidence of cesarean section and perineal laceration was lower under epidural analgesia(8％ vs.15％, 45％ vs.50％ respectively).There were no effects on success rate of induced labor in neither group.Cook balloon could shorten latent phase of labor, relieve the pain of parturients and increase no infection rate [leukocyte count : (8.82 ± 2.74) × 109/L vs.(9.10 ± 3.06) × 109/L, C-reactive protein: (4.73 ±0.87) mg/L vs.(4.82 ±0.90) mg/L respectively].It is worth wider clinical popularization.

AIM: To investigate the role of renin-angiotensin system (RAS) disequilibrium in hyporeactivity and injury of aorta after tourniquet shock ( TS) by observing the changes of aortic contractile reactivity and RAS components after TS.METHODS:Male C57BL/6 mice (8 months old) were divided into 7 groups including control group and 6 mod-el groups.The mice in model groups were sacrificed at reperfusion of 10 min, 1 h, 2 h, 4 h, 6 h and 12 h.The mice in control group were not subjected to tourniquet ligation .The Doppler flowmetry was used to determine the limb blood flow . The carotid artery catheter was applied to detect the blood pressure .The isolated vascular tension tester was available to measure the reactivity of the aorta .HE staining combined with transmission electron microscopy was used to evaluate the morphology of injured aortas .The protein expression of AT 1 receptor , Mas receptor , ACE and ACE2 was measured by Western blot.The serum contents of Ang Ⅱand Ang (1-7) were detected by ELISA.RESULTS:Compared with control group, the blood flow in model groups decreased gradually with the prolongation of reperfusion time .The blood pressure in-creased at 10 min after reperfusion, and then decreased gradually.Accordingly, vascular reaction to norepinephrine (NE) in-creased at 10 min and then descended .The vascular reactivity reached the lowest level at 4 h.Morphological injury score in-creased gradually .Vascular AT1 receptor and ACE2 proteins were reduced , while Mas receptor and ACE proteins were up-regulated compared with control group .The content of AngⅡin the serum elevated, while the content of Ang (1-7) was re-duced.CONCLUSION:The mechanism of aortic reaction to NE increased temporarily in the early stage of shock and then decreased .It may be related to the morphological injury of aorta and the imbalance of RAS .

Objective To explore the relationship among social support, postpartum depression and quality of life of puerperal women. Methods A total of 348 puerperal women were investigated with Postnatal Social Support Questionnaire,Edinburgh Postnatal Depression Scale (EPDS) and WHO Quality of Life-BREF (WHOQOL-BREF). Results Pearson correlation analysis showed that there was a significant positive correlation between social support and the quality of life (r=0.483, P < 0.01), and a significant negative correlation to postpartum depression (r=-0.243, P < 0.01),and a significant negative correlation between postpartum depression and quality of life (r=-0.408, P<0.01). Intermediary effect of postpartum depression was tested. Conclusions A good social support system is benefit to improve depression scores for EPDS, and promote the life quality in puerperal women.

Objective To study the relationship between Nogo-B and transforming growth factor-β1 (TGF-β1)/Smad2 signaling pathway in mice models of hepatic fibrosis.Methods Twenty four healthy male ICR mice were divided into two groups,with 6 in the control group and 18 in the model group.Mice in the model group were further divided into three subgroups according to different time points:subgroups of 4,8 and 12 weeks,with 6 mice in each subgroup.Hepatic fibrosis of mice was induced by subcutaneous injection of carbon tetrachloride (CCl4).The histopathologic changes of the liver were observed by optical microscope using hematoxylin-eosin and Masson trichrome stainings of the liver tissues.Expressions of Nogo-B,Smad2 and TGF-β1 mRNA and proteins in liver were detected by reverse transcription-polymerase chain reaction (RT-PCR),Western blot and immunohistochemistry assays,respectively.Means among groups were compared by univariate analysis of variance.Results The hepatic fibrosis models were successfully induced by CCl4 injection.The expressions of two subtypes of Nogo-B,Nogo-B1 and Nogo-B2 mRNA in normal livers were 0.140±0.050 and 0.104±0.023,but both significantly increased in the livers of mice in the 12 week model subgroup (1.054±0.040 and 0.500±0.057,F=431.41 and 135.46,respectively; both P＜0.01).The Nogo-B protein was mainly expressed in nonparenchymal cells of the liver,and was hardly expressed in hepatocytes.Linear correlation analysis showed that the expressions of Nogo-B mRNA and proteins were positively correlated with Smad2 and TGF-β1 mRNA and proteins (all P＜0.01),which were considered to participate in the signaling pathway of hepatic fibrosis.Conclusion Nogo-B might play a role in the development and progression of hepatic fibrosis by participating in TGF-β1/Smad2 signaling pathway.