Objective To observe the effect ofYinqiao Powder on the mouse models with upper respiratory trace mucosal immunity dysfunction infected with influenza virus A, and explore mechanism of action.Methods The mouse models of upper respiratory trace mucosal immunity dysfunction induced by cold stimulation with the influenza A/PR/8/34 (H1N1) virus through the nasal cavity were established. The mice were randomly divided into normal group, model group, positive medicine (Ribavirin) group, andYinqiao Powder group. All administration groups received gavage with relevant medicine, and then mortality, the life prolonging rate, average survival time and the lung index of each group were observed.Results Compared with the model group, the mortalities in positive medicine group andYinqiao Powder group decreased significantly (P<0.05,P<0.01), with longer survival time. The lung indexes in positive medicine group andYinqiao Powder group decreased significantly (P<0.05,P<0.01), and the inhibition ratios of lung index were 35.5% and 24.6%, respectively.ConclusionYinqiao Powder can realize the protective effects on upper respiratory infection through upregulating the mucosal immunity of the upper respiratory tract of mouse models.

Objective To determine the pharmacokinetic parameters of P-methoxybenzyl alcohol from Gastrodiae Rhizoma in plasma of rats by HPLC. Methods Gavage and intravenous injection were employed for administration. HPLC was used to determine the concentrations of P-methoxybenzyl alcohol from Gastrodiae Rhizoma in plasma of rats in different time points. The pharmacokinetic parameters were computed by DAS3.0. Results The linear range of P-methoxybenzyl alcohol in plasma was 0.63-321.17 μg/mL, r 2=0.994 5. Intra-day accuracy, inter-day accuracy, absolute recovery and stability were in specified range. Conclusion The method is simple and accurate for the determination of the pharmacokinetic parameters of P-methoxybenzyl alcohol from Gastrodiae Rhizoma in plasma of rats.

Objective To investigate the clinicopathologic features and treatment of thyroid microcarcinoma (TMC). Methods From January 1997 to December 2006,311 patients who underwent surgery and defined as TMC(tumor size≤1 cm)were enrolled. Results TMC was identified incidentally by frozen pathologic examination on thyroidectomy specimens in tentative benign goiters in 181 patients; another 130 patients with clinically detectable primary tumors or suspected nodal metastases were grouped to as clinically overt TMC. The clinically overt TMC had a higher incidence of bilateral multifocal tumors (18.5%vs.9.4%,P=0.03),and cervical lymph node metastases(27.7%vs.10.5%,P=0.000)than that in clinically occult TMC group. Conclusion TMC may vary considerably in clinical and biologic behaviors between these two subtypes: clinically overt and occult. Lobectomy for single lesion, total or near total thyroidectomy for multifocal with central compartment nodal dissection should be performed, lateral nodal dissection was not carried out unless US or physical examination detected nodal metastases. Lobetomy, subtotal or more limited thyroidectomy for occult TMC, diagnosed incidentally following thyroid surgery for initially tentative benign thyroid disease, could all be treatment of choice depending on the preference of surgeons.

OBJECTIVETo investigate whether paclitaxel (Taxel) can efficiently induce apoptosis of ACC-2 or not, and to study the relation of apoptosis and arrest of cell mitosis.

METHODSPaclitaxel-induced arrest of cell mitosis and apoptosis of ACC-2 cells in various concentration and different treat time were determined using transmission electron microscope (TEM), fluorescence microscope, flow-cytometry and DNA agarose gel electrophoresis technique.

RESULTSUnder fluorescence microscope, apoptotic cells were green with irregular clumping of nucleus chromatin, or even nuclear chromatin segregation. The typical ultra-structural changes of apoptosis observed by TEM were cell compaction, margination of nuclear chromatin, condensation of cytoplasm, protuberances and apoptotic body. "DNA Ladder" was absent in agarose gel electrophoresis of DNA extracted from culture of ACC-2 cells and paclitaxel-induced ACC-2 cells. "Sub-G(1)" phase peak of ACC-2 cells induced by 50 nmol/L paclitaxel in 48 h and 72 h was 17.13% and 16.26%, respectively. The percentage of G(2)/M phase increased in accordance with raise of the paclitaxel concentration and prolongation of treatment. The typical ultra-structural changes of apoptosis were observed in case that G(2)/M phase was arrested.

CONCLUSIONSPaclitaxel could induce apoptosis of ACC-2 cells. Arrest of G(2)/M phase might induce apoptosis of ACC-2 cells.

Apoptosis ; drug effects ; Carcinoma, Adenoid Cystic ; pathology ; ultrastructure ; Dose-Response Relationship, Drug ; G2 Phase ; drug effects ; Humans ; Mitosis ; drug effects ; Paclitaxel ; pharmacology ; Tumor Cells, Cultured

OBJECTIVETo investigating the relation between the expression of P-glycoprotein and Glutathione transferase-pi and the chemoresistance.

METHODSThe expressions of these two proteins in patients with oral and maxillofacial squamous carcinoma and normal oral tissues were detected by immunohistochemistry.

RESULTSThe positive expression rate of P-gp and GST-pi in oral and maxillofacial malignant tumor was 57.1% and 53.6% respectively, and no expression in normal oral tissues; the expression of GST-pi was relevant to the resistance to cisplatin, while the expression of P-gp was relevant to the resistance to chemotherapeutic drug in general.

CONCLUSIONSThe method of immunohistochemistry combining MTT assay in vitro may become an efficient way to predict the sensitivity to chemotherapeutic drug.

ATP-Binding Cassette, Sub-Family B, Member 1 ; analysis ; Carcinoma, Squamous Cell ; chemistry ; drug therapy ; Drug Resistance, Neoplasm ; Facial Neoplasms ; chemistry ; drug therapy ; Formazans ; Glutathione S-Transferase pi ; Glutathione Transferase ; analysis ; Humans ; Immunohistochemistry ; Isoenzymes ; analysis ; Maxillary Neoplasms ; chemistry ; drug therapy ; Mouth Neoplasms ; chemistry ; drug therapy ; Tetrazolium Salts

OBJECTIVETo observe the injury in rat primary cultured neurons induced by Abeta(1-40) and the protective effects of combination of ginseng and ginko extracts.

METHODPrimary neurons were induced by Abeta(1-40) to establish the cell model of toxic injury. Using flow cytometry with Annexin V-FITC/PI double staining, MTP assay, transmission electron microscopy and Western blot, the appropriate concentration and duration of AP for cell model establishment were determined. The effects of extracts of ginseng and ginko (EGGB)on cellular proliferative activity, apoptotic rate, ultrastructure and caspase-3 expression were detected.

RESULTThe apoptotic rate was increased significantly after neurons were induced by 1 micromol x L(-1) Abeta(-40) for 24 h (P < 0.01). EGGB (5, 50 mg L(-1)) significantly enhanced the proliferative activity (P < 0.05). Meanwhile, EGGB (50 mg L(-1)) inhibited neuronal apoptosis and caspase-3 overexpression and improved cellular ultrastructure remarkably (P < 0.05, P < 0.01).

CONCLUSIONAbeta(1-40) could significantly induce primary cultured neurons to apoptosis in vitro. EGGB showed beneficial neuroprotective effects against neuronal apoptosis, which might be due to improving the structures of neuron and its subcellular organelles, enhancing cellular proliferative activity and inhibiting caspase-3 overexpression in neurons.

Alzheimer Disease ; drug therapy ; Amyloid beta-Peptides ; pharmacology ; Animals ; Apoptosis ; drug effects ; Caspase 3 ; metabolism ; Cell Proliferation ; drug effects ; Cells, Cultured ; Drug Interactions ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Female ; Gene Expression Regulation, Enzymologic ; drug effects ; Ginkgo biloba ; chemistry ; Male ; Neurons ; cytology ; drug effects ; metabolism ; ultrastructure ; Panax ; chemistry ; Peptide Fragments ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Time Factors

Objectives To investigate the efficacy of the shear wave velocity (SWV) based on acoustic radiation force impulse (ARFI) elastography in the differentiation of normal population with chronic kidney disease (CKD) and acute kidney injury (AKI) in middle aged and elderly patients.Methods Sixty-four middle aged and elderly patients referred to China-Japan Friendship Hospital and Zhejiang Provincial People's Hospital with AKI or CKD were enrolled in this study from February 2015 to December 2016 (kidney disease group).Among them,43 patients were CKD (CKD group),and 21 patients were AKI (AKI group,15 patients combined with prior CKD,6 patients without prior CKD).Twenty-nine middle aged and elderly healthy volunteers from China-Japan Friendship Hospital were enrolled at the same time (healthy control group).The SWV values of the renal middle pole cortex were acquired using the ARFI elastography.The differences of the kidney length,cortical thickness and SWV values among healthy control group,AKI and CKD group were compared by variance analysis.The LSD-t analysis was used for the advanced comparison between any two groups.The differences of cortical SWV values among healthy control group,AKI combined with prior CKD group,AKI without prior CKD group and CKD group were compared by variance analysis.The LSD-t analysis was used for the advanced comparison between any two groups.The receiver operating characteristic (ROC) curves of the cortical SWV values for diagnosing kidney disease was drawn.Results The mean cortical SWV values of healthy control group,AKI and CKD groups were (2.88±0.63),(2.42±0.83) and (2.06±0.72) m/s,respectively.The SWV values of AKI and CKD groups were significantly lower than that of healthy control group (t=2.158,P=0.033;t=5.234,P ＜ 0.001).The SWV values of CKD group were lower than that of AKI group,but there were no significant differences.The SWV values of AKI without previous CKD group and AKI combined with prior CKD group were (2.60±0.84) and (1.80±0.45) m/s,respectively.The SWV values of AKI combined with prior CKD group and CKD group were significant lower than that of healthy control group and AKI without prior CKD group (compared with healthy control group:t=2.916,P=0.004 and t=5.318,P ＜ 0.001;compared with AKI without prior CKD group:t=2.054,P=0.043 and t=-2.517,P=0.013).But there were no significant differences between AKI combined with prior CKD group and CKD group,so as to the AKI without prior CKD group and healthy control group.The cutoff value of cortical SWV for diagnosing kidney disease was 2.40 m/s,with an area under ROC curve was 0.767 (95％ CI 0.689-0.898,P=0.000).The sensitive and specificity were 57.1％ and 81.9％,respectively.Conclusions The SWV values of kidneys in middle aged and elderly CKD and AKI patients were significantly lower than those of apparently normal kidneys.The SWV values of AKI patients combined with prior CKD were lower than AKI patients without prior CKD.Determining cut-off SWV values based on ARFI elastography between normal and damaged renal parenchyma can help in the diagnosis of kidney disease in middle aged and elderly patients.

OBJECTIVETo determine the chemosensitivity in fresh biopsy specimen of human oral and maxillofacial cancer, and the differential chemosensitivity among those drugs used popularly in clinic.

METHODSHuman biopsy cancer cells were obtained from 150 oral and maxillofacial malignant tumors. The antitumor drugs tested using modified MTT assay were cisplatin (CDDP), 5-fluorouracil (5-Fu), Pinyangmycin (PYM), Paclitaxel (Taxol), Teniposide (Vm-26), Epi-adriamycin (E-ADM), Vindesin (VDS) and Methortrexatum (MTX).

RESULTSThe success rate of the MTT assay was 93.33% (140 of the 150 cases). At a drug concentration of Cmax x 5, the inhibition rates of oral tumor cells were 63.76% for Vm-26, 25.93% for CDDP, 25.86% for E-ADM, 23.52% for Taxol, 22.97% for PYM, 22.08% for 5-Fu, 18.42% for VDS and 18.93% for MTX. The inhibition rate of VM26 was significantly higher than any of other seven chemotherapeutic drugs (P < 0.05). Over forty percent patients with squamous cell carcinoma showed moderate chemosensitivity to VM-26, CDDP and E-ADM, and over forty percent cases with adenoid carcinoma showed moderate chemosensitivity to Vm-26, Taxol and E-ADM.

CONCLUSIONSMost oral and maxillofacial cancers showed chemosensitivity to Vm-26, CDDP, E-ADM and Taxol. Vm-26, E-ADM and Taxol were more potent drugs than VDS, 5-Fu and MTX against oral and maxillofacial cancer cells. Chemosensitivity testing using modified MTT assay was useful in selecting antitumor drugs for patients with oral and maxillofacial cancers.

Antineoplastic Agents ; pharmacology ; Biopsy ; Carcinoma, Squamous Cell ; drug therapy ; pathology ; Cell Division ; drug effects ; Cisplatin ; pharmacology ; Dose-Response Relationship, Drug ; Drug Screening Assays, Antitumor ; Fluorouracil ; pharmacology ; Humans ; Maxilla ; pathology ; Maxillary Neoplasms ; drug therapy ; pathology ; Mouth ; pathology ; Mouth Neoplasms ; drug therapy ; pathology ; Paclitaxel ; pharmacology ; Teniposide ; pharmacology ; Tumor Cells, Cultured ; drug effects ; Vindesine ; pharmacology

Objective To investigate the effect of tea on oral cancer in nonsmokers and nondrinkers. Methods A case-control study were performed between September 2010 and January 2015 including 203 oral cancer cases in nonsmokers and nondrinkers with pathologically confirmed and 572 community controls. The related information included socio-demographic characteristics, detailed information on tobacco smoking and alcohol and tea consumption, personal medical history, family history of cancer, and occupational history were collected from all subjects. Unconditional logistic regression analysis was used to calculate the odds ratios (OR) and 95%confidence intervals (95%CI) to examine the effect of tea on oral cancer and to assess multiplicative interactions between tea and passive smoking. We also stratified by age, sex, residence, and passive smoking to explore possible difference in association between subgroups. Additive interactions between tea and passive smoking were assessed using relative excess risk due to interaction (RERI), attributable proportion (AP), and synergy index (SI). Results Compared with non-tea drinkers, tea consumption (OR=0.52, 95%CI:0.34-0.81), age of tea drinking initiation (years)≥18 (OR=0.54, 95%CI: 0.34-0.85), duration of tea consumption (years) <20 (OR=0.49, 95%CI: 0.27-0.90), duration of tea consumption (years)≥20(OR=0.55, 95%CI:0.32-0.95), average daily tea consumed<700 ml(OR=0.52,95%CI:0.32-0.86), moderate concentration of tea consumed (OR=0.56,95%CI:0.32-0.96), weak concentration of tea consumed(OR=0.35, 95%CI: 0.16-0.77), drinking green-tea(OR=0.48,95%CI: 0.28-0.82) and drinking moderate temperature of tea (OR=0.55,95%CI: 0.31-0.98) could reduce the risk of oral cancer; Stratified analysis indicated the protective effects of tea drinking on female (OR=0.53,95%CI:0.30-0.94), age<60 years old (OR=0.53,95%CI:0.29-0.97), live in the urban(OR=0.38,95%CI:0.20-0.69) and no passive smoking(OR=0.47,95%CI:0.25-0.86) population with nonsmoking and nondrinking was more obvious; Crossover analysis showed tea and passive smoking did not exist multiplication interaction relationship (OR=0.95,95%CI:0.41-2.20) and addition interaction relationship (RERI=-0.15,95%CI:-0.92-0.62;AP=-0.16,95%CI:-1.06-0.73;SI=-0.18, 95%CI:-1.44-0.87). Conclusion Tea consumption, age of tea drinking initiation, duration of tea consumption, average daily tea consumed, concentration of tea consumed, types of tea and temperature of tea might have impact on the incidence of oral cancer in nonsmokers and nondrinkers to a certain extent.

Objective To investigate the association between oral hygiene, chronic diseases, and oral squamous cell carcinoma. Methods We performed a case-control study with 414 cases and 870 controls in Fujian during September 2010 to January 2015. Patients were newly diagnosed oral squamous cell carcinoma cases according to the pathologic diagnoses, control subjects were enrolled from community population. Epidemiological data were collected by in-person interviews using a standard questionnaire . The contents of the questionnaire included demography character, history of tobacco smoking and alcohol drinking, dietary habits, oral hygiene status, family history of cancer, etc. Using unconditional logistic regression analysis to estimate adjusted odds ratios (OR) and corresponding 95% confidence intervals (CI) for oral hygiene and chronic diseases. We also stratified by sex, smoking and drinking to explore possible difference in association between subgroups. Results The multivariate logistic regression analysis indicated that number of teeth(20-27 and<20), bad prosthesis, recurrent oral ulceration were the risk factors of oral squamous cell carcinoma, the adjusted OR(95%CI) values were 2.01(1.49-2.73), 3.51(2.39-5.15), 2.33(1.79-3.04), 3.96(2.11-7.44), respectively;brushing tooth once per bay,brushing tooth more than once per day, regular oral health examination at least 5 years per time were the protective factors of oral squamous cell carcinoma, the adjusted OR(95%CI) values were 0.24 (0.13-0.43),0.13 (0.07-0.24), 0.37 (0.26-0.53), respectively. The stratification analysis indicated that recurrent oral ulceration could increase the risk of oral squamous cell carcinoma for non-smokers and non-drinking, the adjusted OR(95%CI) value was 5.21(2.42-11.18) and 4.71(2.37-9.36);and a risky effect of hypertension on risk of oral squamous cell carcinoma was observed for non-smokers and non-drinking, the adjusted OR(95%CI) values were 1.70 (1.10-2.61) and 1.58 (1.07-2.34) . Conclusions Oral hygiene and chronic diseases could affect the incidence of oral squamous cell carcinoma.