OBJECTIVE: To study the effect of forsythiaside on the expression of c-jun induced by cisplatin in the cochlea of guinea pig. METHOD: Thirty guinea pigs were randomly divided into control group (10), cisplatin group (10) and forsythiaside group (10). The ototoxicity model was done with intraperitoneal injection of cisplatin solution (8 mg/kg per day) for 7 days. Forsythiaside (25 mg/kg per day) was injected 30 min before cisplatin solution treated in guinea pigs of forsythiaside group for 7 consecutive days. The saline instead of cisplatin was injected in normal control group. The distortion product otoacoustic emission (DPOAE) was detected before animals were killed. The expression of c-jun in cochlea of guinea pigs was detected by western blotting. The expression of c-jun mRNA in cochlea of guinea pigs was detected by reverse transcriptase polymerase chain reaction (RT-PCR). RESULT: DPOAE amplitudes in cisplatin group was significantly lower than in control group (P < 0.01). Compared with cisplatin group, DPOAE amplitudes in forsythiaside group was increased significantly (P < 0.05). The expression of c-jun protein and mRNA were significantly increased in cisplatin group than in control group (P < 0.01). Compared with cisplatin group, the expression of c-jun protein and mRNA were significantly decreased in forsythiaside group. CONCLUSION Forsythiaside can significantly reduce the side effects induced by cisplatin through down-regulating the expression of c-jun.
Animals ; Cisplatin ; toxicity ; Cochlea ; drug effects ; metabolism ; Female ; Glycosides ; pharmacology ; Guinea Pigs ; Male ; Proto-Oncogene Proteins c-jun ; metabolism

Studies have shown that cholesterol metabolism plays an important role in tumorigenesis and development.At the same time, it is also shown an important application value in predicting the prognosis of malignant tumors.Cholesterol can improve the long-term quality of life and survival of cancer patients by appropriating risk stratification of these malignant tumors.

Humans ; Medicine, Chinese Traditional ; Nephrotic Syndrome ; diagnosis ; therapy

Objective:To construct recombinant retrovirus expressing human bone morphogenetic protein-7 gene BMP7 and to discuss its apoptosis-inducing activities and the mechanism in liver cancer cell line HepG2. Methods:BMP7 gene was amplified and reconstructed with retroviral plasmid pLP-LNCX by loxP homologous recombination,and then the plasmid pLP-LNCX-BMP7 (pLLBMP7) was transferred into packing cell line PT67 and the supernatant was collected to assay viral titer. MTT assay was adopted to observe HepG2 cells amplification. 48h after pLLBMP7 infection agarose electrophoresis and flow cytometry were used to verify apoptosis of tumor cells,and then the expression of BMP7,caspase-3 and bcl-2 proteins were detected by Western blotting. Results:Recombinant retrovirus pLLBMP7 was justified and transformed into PT67 package cell with supernatant viral titer amounted to 5?109 pfu/ml. In MTT assay retrovirus group had no evident difference from controls in cellular inhibition 72h later (35.1% vs. 5.3%,68.5% vs.18.3%,p

Carcinoma ; diagnosis ; Carcinoma, Papillary ; Diagnostic Errors ; Female ; Humans ; Thyroglossal Cyst ; diagnosis ; Thyroid Neoplasms ; diagnosis ; Young Adult

Objective To investigate the pharmacodynamics of sufentanil required to inhibit the body movement induced by tetanic stimulation and skin incision when combined with propofol in patients undergoing thoracic or abdominal surgery. Methods Fifty ASA Ⅰ or Ⅱ patients aged 18-57 yr undergoing elective thoracic or abdominal surgery were randomized into 5 groups sufentanil target effect-site concentration (Ce) (n = 10 each):0.07, 0.10, 0.14, 0.20 and 0.28 ng/ml groups. Anesthesia was induced with TCI of propofol at the target plasma concentration of 3.0-3.2 μg/ml. As soon as the patients lost consciousness, infusion of sufentanil with the corresponding Ce was started in the each group. One tetanic stimulus (frequency 50 Hz, intensity 80 mA, wave length 0.25 ms) was given after the target effect-site and plasma concentrations were balanced. Tracheal intubation was facilitated with succinylcholine 1.5 mg/kg. The concentrations of propofol and sufentanil were maintained until 4 min after skin incision. The body movement was observed during tetanic stimulation and skin incision. The effective effect-site concentration (EC50, EC94) of sufentanil and 95% confidence interval (CI) were calculated using probit regression analysis. Results The EC50 and EC95 of sufentanil required to inhibit the body movement induced by tetanic stimulation when combined with propofol were 0.12 (95% CI 0.09-0.14) ng/ml and 0.20 (95% CI 0.17-0.31) ng/ml respectively. The EC50 and EC95 of sufentanil required to inhibit the body movement induced by skin incision when combined with propofol were 0.13 (95% CI 0.11-0.16) ng/ml and 0.21 (95% CI 0.17-0.29) ng/ml respectively. There was no significant difference in the EC50 and EC95 of sufentanil between the two different stimuli (P ＞ 0.05). Conclusion The EC50 and EC95 of sufentanil required to inhibit the body movement induced by tetanic stimulation (frequency 50 Hz, intensity 80 mA, wave length 0.25 ms) when combined with propofol were 0.12 and 0.20 ng/ml respectively, the EC50 and EC95 of sufentanil required to inhibit the body movement induced by skin incision when combined with propofol were 0.13 and 0.21 ng/ml respectively and there was no significant difference in the pharmacodynamics between the two different stimuli, indicating that tetanic stimulation as an alternative to skin incision can be used to evaluate the pharmacodynamics of anesthetics.

Objective To compare the EC50 ～ EC95 for propofol and remifentanil targetcontrolled infusion(TCI)at loss of consciousness (LOC) and without response to a standard Hoxious painful stimulus in elderly and young adult patients.Methods A total of 102 (American society of anesthesiologists) ASA Ⅰ-Ⅱ patients undergoing elective surgery under general anesthesia were enrolled in this study and divided into control group (aged 18-64 years,n=52) and elderly group (aged≥65 yrs,n=52).Propofol TCI was started at target plasma concentration (Cp) of 1.2 mg/L and the Cp increased by 0.3 mg/L every 30s until loss of consciousness (LOC),kept the target effectsite concentration (Ce) of propofol at LOC.Remifentani TCI was started at Cp of 2.0 μg/L,increased by 0.3 μg/Levery 30s until loss of somatic response to a tetanic stimulus (50Hz,80mA,0.25ms,4s) Cp,Ce,systolic blood pressure (SBP),diastolic blood pressure (DBP),mean artery pressure (MAP) and heart rate(HR) were recorded.The Ce of propofol at LOC,the Ce of remifentanil at loss of somatic response to noxious stimulus in 50％-95％ of the patients (EC50-EC95),and 95％ confidence interval were determined by probit method.The adjustment required for TCI propofol with remifentanil in elderly patients was explored.Results In elderly group,the propofol Ce at LOC was (2.0±0.3) mg/L,significantly lower than that in control group (2.9±0.2) mg/L (t=6.168,P＜0.01) and EC50-EC95 of remifentanil at loss of somatic response to noxious stimulus in elderly group (3.5-5.4) μg/L was similar to that in control group (3.7-5.9) μg/L.Conclusions For TCI propofol and remifentanil in elderly patients,the requirement of Ce of propofol is significantly decreased and Ce of remifentanil required in elderly patients is similar to adult patients.

Objective To study the effect of mecobalamine treatment on acute cerebral infarction combined with high homocysteine (Hcy) and post-stroke depression.Methods A total of 160 cerebral infarction patients with high Hcy were collected from January 2010 to December 2011 in our hospital.Patients were randomly divided into two groups:the control group (n=80,with routine therapy) and the treatment group (n=80,with routine therapy plus intramuscular injection with folic acid 500μg for 8 weeks).The plasma concentration of Hcy was determined by fluoresene polarization immunoassay.The improvement of depression,anxiety and life skills in patients were assessed by selfmade questionnaires and self-reporting inventory (SLC 90).Results There were no significant differences in plasma Hcy level in control group before versus after treatment [(21.86±4.76) μmol/L vs.(18.67±3.81) μmol/L,t=0.40,P＞0.05].Compared with before treatment,plasma Hcy level in treatment group was significantly reduced 4 weeks after treatment [(11.66 ± 3.28) μmol/L vs.(22.68±5.16) μmol/L,t=2.55,P＜0.01].There was a significant difference in plasma Hcy level between the treatment group and the control group after treatment [(11.66 ±3.28) μmol/L vs.(18.67±3.81) μmol/L,t=7.40,P＜0.01].TheSCL-90 total score,positive symptom items score,the total score and the average score of positive symptom items were significantly lower in treatment group after treatment than in treatment group before treatment (t=2.04,2.97,5.45,4.21,all P＜0.05) and in control group after treatment (t 7.40,7.58,12.78,4.15,all P＜0.05).The improvement on symptomatic patterns including somatization,obsessive-compulsive problems,interpersonal sensitivity,depression,anxiety and fear were better in treatment group after treatment than in treatment group before treatment (t 2.34,2.28,2.51,2.19,3.40,2.35,allP＜0.05) and in control group after treatment (t=4.10,5.04,5.12,4.18,5.48,5.20,all P＜0.05).There were no significant differences in the improvement in paranoid ideation between the treatment group before and after treatment (t=1.40,P＞0.05),between the treatment group and the control group after treatment (t=1.48,P＞0.05),and between the control group before and after treatment (P＞0.05).Conclusions Mecobalamine can effectively reduce plasma Hcy level in cerebral infarction patients with high plasma Hcy,and alleviate the symptoms of anxiety,depression,nervousness and other emotions.

ObjectiveTo determine the primary control factors of nucleotides metabolisms on insulin secretion.MethodsNMRI mice isolated islets were used to investigate the amount of insulin secretion and the changes of ATP,ADP,GTP,GDP and UTP in islets when the activity of K+ATP channel was eliminated by diazoxide.ResultsThe above assays demonstrated that insulin secretion increased with the rise of glucose concentration.In the same time,ratio of ATP/ADP,GTP/GDP and level of UTP increased,too.All three indexes correlated with the insulin secretion very well respectively,but only ratio of ATP/ADP can control insulin secretion directly in common influence.ConclusionOur findings suggest that there is the second control site in islets when glucose induces insulin secretion and ATP/ADP ratio is only key factor in this mechanism.

This paper introduces the principles of an Environmental Temperature Supervising Network System, explain its hardware and software structure and the function of network system. The whole system is proved stable and reliable by experiment. It may have some profit in the market and great future in the application.