OBJECTIVE:To study the effects of indometacin on apootosis and proliferation of cervical cancer Hela cell. METH-ODS:Hela cell was cultured in vitro as study object,and cultured with 0(blank control),200,400,600,800 and 1 000 μmol/L indometacin for 24,48 and 72 h. The inhibitory rate of indometacin to the proliferation of Hela cells was detected by MTT assay. After treated with 0(blank control),400,600 and 800 μmol/L indometacin for 24 h,the change of cellular morphology was ob-served by invert microscope;cell cycle phase and apoptosis were analyzed by flow cytometry. RESUITS:Indometacin of 600, 800,1 000μmol/L could inhibit the proliferation of Hela cell,which was positively correlated to drug concentration and time. Com-pared with blank control,indometacin could induce that Hela cell transformed from polygonous to round in appearance,and result-ed in cell apoptosis and necrosis;the proportion of cells at G0/G1 phase increased,while the proportion of cells at S phase reduced;the apoptotic rate of cells raised. CONCLUSIONS:Indometacin could inhibit the proliferation of Hela cell,block cell cycle at G0/G1 phase and induce apoptosis.

Objective To study the effect of FSH on the secretion of gastrin in the rat stomach,offering experimental evidence for reproductive endocrine hormone regulating digestive function. Methods The FSH was directly injected into the stomach of rats to observe the change of density of gastrin immunoreactive positive cells in the stomach by immunohistochemical SABC method and the gastrin level in circulating blood and gastric liquid by ELISA. Results Compared with the control group,which was injected with saline into the stomach,the density of immunoreactive positive cells was significantly increased in the stomach with FSH treatment group(P

Objective The activity and cyclooxygenase (COX-2) protein expression of colorectal adenoc arcinoma cell treated by deoxycholic acids (DCA) were examined in order to find out the carcinogenesis mechanism of DCA. Methods The proliferation of colorectal cancer cells (SW 1116) was detected by MTT metho d . COX-2 protein expression was measured by immunohistochemistry and Western blo t. Results DCA lower than 100 ?mol/L concentration can stimulate the growth of the adenoca rcinoma cells with effect reversible, while higher concentration shows the long -acting effect of inhibition. DCA of 10,50 and 100 ?mol/L concentration can up -regulate the expression of COX-2 in cells, while only 10 ?mol/L can maintain this effect long than 72 hours. The level of COX-2 protein treated by the late r two concentration descends after 48 hours. Conclusion DCA affects the proliferation of SW1116 in two sides. D CA concentration lower than 100 ?mol/L can promote COX-2 protein expression, w hich may be the mechanism of its carcinogenesis.

Adolescent ; Angiotensin-Converting Enzyme Inhibitors ; therapeutic use ; Blood Pressure ; drug effects ; Child ; Child, Preschool ; Female ; Fosinopril ; pharmacology ; therapeutic use ; Humans ; Male ; Nephritis ; drug therapy ; Proteinuria ; drug therapy ; Purpura, Schoenlein-Henoch ; complications

Objective To study the effect of nonsteroidal anti-inflammatory drugs (NSAIDs) ,cy-clooxygenase-2 ( COX-2 ) inhibitor Piroxicam on the growth of colorectal cancer cells and to evaluate the preventive significance from COX-2 expression and apoptosis. Methods The cell growth of colorectal adenocar-cinoma cell line SW1116 was measured by MTT (3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyl tetrazolium bromide) assay, and COX-2 protein expression by Immunohistochemistry and Western Blot. Apoptosis was characterized by DNA fragmentation. Results The results showed that COX-2 inhibitor Piroxicam could restrain the proliferation of SW1116, which had positively related to its concentration. Concentration higher than 1. 0mmol/L showed cytotoxic effects. The inhibition of COX-2 by Piroxicam appeared within 12 hours, but COX-2 protein level recovered within 24 hours, its expression had negatively related to the concentration of Piroxicam. Apoptosis was induced in SW1116 culture with Piroxicam higher than 0. 1mmol/L. Conclusion It can be concluded that cell inhibition effect is associated with Piroxicam-mediated cell apoptosis and inhibition of COX-2 protein expression in SW1116 cell, because the effects of Piroxicam have the concentration and time dependence, in further clinical research its dosage and time of medication should be considered in preventing or treating colorectal cancer.

This paper aims to investigate the value of diffusiion weighted imaging (DWI) and different apparent diffusion coefficient (ADC) methods to predict the curative effects of neoadjuvant chempotherapy (NAC) for breast cancer. From March 2010 to December 2012, seventy-one patients were pathologically confirmed invasive breast cancer by needle puncture biopsy received before surgery, and underwent magnetic resonance before and after NAC, the ADC were measured by mean ADC method and lower ADC method. The pathologic response after NAC was divided to major histological response (MHR) group and non-major histological response (NMHR) group according to Miller & Payne system. Results displayed that ADC values obtained before NAC, at the end of the second cycle of NAC, and after whole course of treatment, had good correlations between mean and lower ADC methods (the Pearson's correlation=0.699, 0.749 and 0.895, respectively). Significant difference in ADC obtained both with mean and lower ADC methods could be found between MHR and NMHR groups after the second cycle of NAC (P< 0.05). After the second cycle of NAC, significant difference in the change rate of ADC could be found between MHR and NMHR groups by using lower ADC method (P<0.05), but not be found by using mean ADC method (P >0.05). In conclusion, DWI could monitor the pathologic changes of breast cancer after NAC, and the lower ADC method might be used to evaluate the curative effect of NAC with the change rate of ADC.
Breast Neoplasms ; drug therapy ; pathology ; Diffusion Magnetic Resonance Imaging ; Female ; Humans ; Neoadjuvant Therapy

Air Pollutants, Occupational ; analysis ; Ammonium Sulfate ; analysis ; Chromatography, Ion Exchange ; methods ; Workplace

Objective To observe the clinical effect on cervicogenic headache (CEH) of pulsed radiofrequency stimulation (PRF) applied to the C2 dorsal root ganglion combined with nerve block.Methods A total of 78 cases diagnosed as CEH were randomly divided into a combined treatment group,a PRF treatment group and a nerve block group.The combined treatment group was given both PRF applied to the C2 dorsal root ganglion and blocking therapy.The other two groups were given only one treatment or the other.All the treatments were once weekly for 3 weeks.Before treatment and 1,3 and 6 months after treatment,all of the patients' headaches were evaluated using a visual analogue scale (VAS).Results At 1,3 and 6 months after treatment,the average VAS scores of all three groups had decreased significantly.The VAS ratings dropped the most in the combined treatment group,followed by the PRF group and then the nerve block group.All the intergroup differences were statistically significant.The combined treatment group's cure rate (88％) was significantly better than that of the PRF group (81％),which was significantly better than that of the nerve block group (54％).Conclusion Combining PRF applied to the C2dorsal root ganglion with nerve block therapy has a synergistic effect on CEH.The curative effect of the combined treatment was better than either PRF or blocking alone.

Objective To explore the protective effect of L-carnitine on neonates with myocardial injury caused by as?phyxia. Methods Forty-four neonates with myocardial injury caused by asphyxia were randomly divided into L-carnitine treatment group (21 cases) and control group (23 cases). Patients in control group were received routine treatment and pa?tients in treatment group were given L-carnitine 0. 1 g/(kg · d) on the basis of routine treatment for 7 days. Symptoms and physical signs were observed before therapy and during the treatment in two groups. Before and after the treatment, plasma levels of free L-carnitine and cardiac troponin I (cTnI) were detected with the method of colorimetric assay and chemilumi?nescent, respectively. Results The clinical effective rate was significantly higher in treatment group than that of control group (90.48%vs 60.87%, P<0. 05). Compared with the control group, there was a significantly higher plasma concentra?tion of free L-carnitine in treatment group after treatment [(27.00±5.69)μmol/L vs (13.20±3.04)μmol/L, P<0.05]. In treat?ment group, plasma concentration of free L-carnitine was significantly higher after treatment than that of pre-therapy [(14.87 ± 3.95)μmol/L,P<0.05]. Compared with the control group, there was a significantly lower plasma concentration of cTnI after treatment in treatment group [(0.025±0.006)μg/L vs (0.046±0.010)μg/L, P<0.05]. In the treatment group, there was a significant correlation between decreased plasma concentration of cTnI and increased plasma concentration of free L-carnitine (r=0.899, P<0.05). Conclusion Administration of L-carnitine can effectively decrease the abnormal plasma lev?el of cTnI in neonates with myocardial injury caused by asphyxia, and thereby protect the myocardium.