Objective To investigate the expression of transient receptor potential vanilloid subtype 1 (TRPV1) in uterosacral ligament and its correlation with pain in endometriosis.Methods Total of 54 patients undergoing endometriotic lesions excision in uteroscaral ligament by laparoscopy due to pelvic pain were enrolled in this study.According to visual analogue scale(VAS) scores,27 patients with VAS 5 - 10 were in group A and 27 patients with VAS 0 - 4 were in group B.In the mean time,20 patients with dysmenorrhea without endometriosis (VAS:0 -4 ) were matched as group C.Specimens (including the sacro-ligaments of 20 women without endometriosis) were immunostained with specific antibodies of TRPV1.Western blot and real time PCR were performed to detect TRPV1 expression in endometriosis lesions and control group.Results( 1 ) Immunohistochemnistry:the positive area of TRPV1 was found in endometriotic lesions in uterosacral ligament in group A,B and tissue of uterosacral ligament group C.The semi-qualitification of TRPV1 expression were 3 in group A, 1 in group B and 1 in group C by immunohistochemistry staining.There was significantly different expression between group B and group A ( P =0.005 ) or group C ( P =0.027 ).(2) mRNA expression:the expression of TRPV 1 was 1.84 in group A,0.80 in group B,0.24 in group C,respectively.With higher VAS scores,the expression of TRPV1 exhibited increasing trends.The expression of TRPV1 mRNA was higher in group A than thai in group B ( P =0.022).There was statistically different expression between group B and group C ( P =0.031 ).( 3 ) Western blot:the expression of TRPV1 protein was 0.63 in group A,0.19 in group B,0.02 in group C.There was significant differences between group A and group B ( P =0.022 ),and between group B and group C (P ＜ 0.01 ).Conclusion The expression of TRPV1 was correlated with the degree of pain in patient with endometriosis.

Age Determination by Skeleton ; Body Weight ; drug effects ; Child ; Drugs, Chinese Herbal ; therapeutic use ; Estradiol ; blood ; Female ; Humans ; Puberty, Precocious ; blood ; drug therapy ; physiopathology ; Yin-Yang

Objective To analyze the epidemic characteristics of mushroom poisoning incident in order to find the regularity of outbreak and provide the fundamental guidelines of prophylaxis,control,diagnosis and treatment.Methods According to the reported information from the Management Information System of Public Health Emergency in China mainland,the area-time distribution of mushroom poisoning incidents from 2004 to 2014 was analyzed,and the descriptive analysis of mushrooms poisoning incidents including causes,places,occupation of victims and incidents identification were made from 2010 to 2014.Results In China (excluding Hong Kong,Macao and Taiwan),the top five provinces of mushroom poisoning incidents were Yunnan,Guizhou,Sichuan,Guangxi and Hunan.The epidemic peak was reached in summer-autumn season.The major and significant incidents accounted for 76.56％ of overall mushroom poisoning incidents,and the fatality rate of 3 701 patients accounted for 21.24％ (786 deaths).The causes were mistaking poisonous mushrooms as edible mushrooms or purchasing poisonous mushrooms in the market by accident.About 87.50％ incidents happened at home.Farmers,workers,children and students were easily subjected to mushroom poisoning because of their large range of activities,strong curiosity and lacking related ability for distinguishing edible mushroom from poisonous mushrooms.No identification was done in 200 mushroom poisoning incidents from 2010 to 2014,which accounted for 92.59％ of mushroom poisoning incidents in the corresponding period.Standard species identification was carried out only in two poisonous mushroom incidents.Conclusions Mushroom poisoning incident was one of the most important causes of death in per-oral poisoning incidents.It should to cope with surveillance and meticulous management during high prevalence season and in high-risk provinces.At the same time,it should be strengthened to train doctors and health professionals with the knowledge of identification of mushroom poisoning in key areas as well as to develop the health promotion of mushrooms poisoning prevention.

OBJECTIVE: To analyze the distribution and drug resistance of the pathogenic bacteria in respiratory secretion in children with trachea bronchial foreign bodies so as to assist physicians in clinical prescription. METHOD: Sputum specimens of 622 children with trachea bronchial foreign bodies were collected,and the drug susceptibility test was peformed. RESULT: Pathogenic bacteria were detected in 124(19. 94%) of 622 sputum specimens. Most detected gram-negtive bacilli were highly sensitive to amikacin, ciprofloxacin, ceftriaxone, cefepime and ceftazidime, no strains were resistant to imipenem and meropenem; 42 strains were gram-positive bacilli. The former were highly sensitive to levofloxacin and chloramphenico,the latter were highly sensitive to ciprofloxacin, moxifloxacin and linezolid, no strains were resistant to rifampicin and vancomycin. CONCLUSION The frequent pathogenic bacteria in respiratory secretion in children with trachea bronchial foreign bodies include gram-negtive bacilli such as enterobacter cloacae, klebsiella pneumonia, escherichia coli, acinetobacter baumannii, serratia marcescens, and gram-positive bacilli such as streptococcus pneumonia,staphylococcus aureus. The detected gram-negtive bacilli were sensitive to imipenem and meropenem;the detected gram-positive bacilli were sensitive to rifampicin and vancomycin.
Bacteria ; drug effects ; Child ; Disease Susceptibility ; Drug Resistance, Bacterial ; Foreign Bodies ; microbiology ; Humans ; Microbial Sensitivity Tests ; Sputum ; microbiology ; Trachea ; microbiology ; pathology

Objective To investigate the virtual wedge (VW) dosimetric parameters with the ionization chamber array Matrixxenvlution.Methods Using Matrixxenvlution and solid water to measure and calculate Siemens accelerator's VW angle and VW factors of different fields and compare the wedge field dose distribution to that of treatment planning system (TPS) by gamma analysis,summarized the measurement results of 50 times.Results The γ pass rate (3 mm/ 3％) of 15° and 30° VW in both direction were (91.47 ± 1.76)％,(92.99 ± 1.54)％ and (93.27 ± 1.24)％,(93.27 ± 1.68)％,respectively,with the increase of filed size and the VW angle,but for 20 cm ×20 cm field and VW 60°,the result was not very good.The largest angle deviation ＜ 2° except small field size and wedge angle,VW factors were approximately equal to 1,the maximum deviation was no more than 0.05,plan dose distribution and the measured dose distribution have good consistency except large field with large wedge angle.Conclusions Matrixxenvlution used in the measurement of VW dosimetric parameters which can obtain all parameters for angle calculation and dose plane analysis with only once positioning,and become more rapid,convenient,economical and practical one of quality assurance tools for VW dose verification.

Objective: To observe the effect of acupuncture plus thunder-fire moxibustion on the expressions of matrix metalloproteinase-3 (MMP-3), tissue inhibitor of metalloproteinase-1 (TIMP-1) and transforming growth factor-β1 (TGF-β1) in cartilage of knee osteoarthritis (KOA) rats, and to explore the mechanism of acupuncture plus thunder-fire moxibustion in the treatment of KOA. Methods:Thirty Sprague-Dawley (SD) rats were randomly divided into a blank control group, a model group and an acupuncture-moxibustion group by random digits table, 10 rats in each group. Rats in the model group and the acupuncture-moxibustion group were injected with papain in the right posterior knee joint to prepare the models. The levels of MMP-3 and TIMP-1 in rat synovium of each group were measured by enzyme-linked immunosorbent assay (ELISA) after 2 weeks of treatment. The level of TGF-β1 was determined by Motic B5 Micro-camera system. Results:The levels of MMP-3 and TIMP-1 in the cartilage of the model group were significantly higher than those in the blank control group (allP<0.01); the levels of MMP-3 and TIMP-1 in the acupuncture-moxibustion group were lower than those in the model group, and the between-group differences were statistically significant (all P<0.05). The levels of MMP-3 and TIMP-1 in the acupuncture-moxibustion group were higher than those in the blank control group, and the differences were statistically significant (all P<0.05). The level of TGF-β1 in cartilage tissues of the model group was significantly lower than that in the blank control group (P<0.01); the level of TGF-β1 in the acupuncture-moxibustion group was higher than that in the model group (P<0.05), but it was lower than that in the blank control group, and the between-group difference was statistically significant (P<0.05). Conclusion: Acupuncture plus thunder-fire moxibustion can effectively recover the abnormal expressions of MMP-3 and TIMP-1 in KOA model rats and somewhat up-regulate TGF-β1, which may be one of its mechanisms of acupuncture plus thunder-fire for KOA.

BACKGROUND AND OBJECTIVEChemotherapy is the main treatment for colon cancer, while multidrug-resistance is the main reason for chemotherapy failure and tumor relapse. This study was to establish two oxaliplatin-resistant colon cancer cell lines and evaluate their biological characteristics.

METHODSOxaliplatin-resistant colon cancer cell lines SW620/L-OHP and lovo/L-OHP were established in vitro by continuous exposure to oxaliplatin (L-OHP) of low and gradually increased concentration. Growth curve, cross-resistance and resistance index of the oxaliplatin-resistant cell lines to various anti-cancer agents were determined by CCK8 assay. The expressions of P-glycoprotein (P-gp), multidrug-resistance protein 1 (MRP1) and MRP2 were detected by Western blot. Cell cycle distribution as well as the expression of CD133 and CD44 were measured by flow cytometry.

RESULTSIt took 10 months to establish the SW620/L-OHP and LoVo/L-OHP cell lines with stable resistance to oxaliplatin. Cross-resistance to 5-fluorouracil, etoposide, cisplatin, vincristine and epirubicin but not to paclitaxel was observed. Longer doubling time, higher proportion of cells in G(0)/G(1) phase and lower proportion in G(2)/M phase were observed in the two oxaliplatin-resistant cell lines compared with their parental cell lines. The expression of MRP2 in the oxaliplatin-resistant cells was up-regulated, while those of P-gp and MRP1 had no significant change. CD133 was overexpressed while CD44 level remained unchanged in SW620/L-OHP and LoVo/L-OHP cells.

CONCLUSIONSSW620/L-OHP and LoVo/L-OHP cell lines show a typical and stably resistant phenotype and may be used as research models.

AC133 Antigen ; ATP-Binding Cassette, Sub-Family B, Member 1 ; metabolism ; Antibiotics, Antineoplastic ; pharmacology ; Antigens, CD ; metabolism ; Antimetabolites, Antineoplastic ; pharmacology ; Antineoplastic Agents ; pharmacology ; Antineoplastic Agents, Phytogenic ; pharmacology ; Cell Cycle ; Cell Line, Tumor ; Cisplatin ; pharmacology ; Colonic Neoplasms ; metabolism ; pathology ; Drug Resistance, Multiple ; Drug Resistance, Neoplasm ; Epirubicin ; pharmacology ; Etoposide ; pharmacology ; Fluorouracil ; pharmacology ; Glycoproteins ; metabolism ; Humans ; Hyaluronan Receptors ; metabolism ; Multidrug Resistance-Associated Proteins ; metabolism ; Organoplatinum Compounds ; pharmacology ; Peptides ; metabolism ; Vincristine ; pharmacology

BACKGROUNDThe microemboli produced during spontaneous plaque rupture and ulceration and during coronary intervention will reduce coronary reserve and cause cardiac dysfunction. It is though that inflammation caused by the microinfarction induced by the microembolization may play an essential role. It is known that the activation of p38 mitogen-activated protein kinases (MAPK) in both infected and non-infected inflammation in myocardium may cause a contractile dysfunction. But the relation between the activation of p38 MAPK and microembolization is still unknown.

METHODSSprague-Dawley rats were randomly divided into three groups: Sham group, coronary microembolization (CME) group and SB203580 group (n = 10 per group). CME rats were produced by injection of 42 µm microspheres into the left ventricle with occlusion of the ascending aorta. SB203580, a p38 MAPK inhibitor, was injected into the femoral vein after the injection of microspheres to make the SB203580 group. Left ventricular ejection fraction (LVEF) was determined by echocardiography. The protein concentration of P38 MAPK in the myocardium was assessed by Western blotting. The relative expression of mRNA for tumor necrosis factor (TNF)-α was assessed by the technique of semi-quantitative polymerase chain reaction amplification.

RESULTSLVEF was depressed at three hours up to 12 hours in the CME group. Increased p38 MAPK activity and TNF-α mRNA expression were observed in the CME group. The administration of SB203580 partly inhibited p38 MAPK activity, but did not fully depress the TNF-α expression, and partly preserved cardiac contractile function.

CONCLUSIONSp38 MAPK is significantly activated by CME and the inhibition of p38 MAPK can partly depress the TNF-α expression and preserve cardiac contractile function.

Animals ; Blotting, Western ; Coronary Disease ; drug therapy ; etiology ; metabolism ; Echocardiography ; Embolism ; complications ; Imidazoles ; pharmacology ; therapeutic use ; Immunohistochemistry ; Microcirculation ; drug effects ; Myocardial Contraction ; drug effects ; physiology ; Myocardium ; metabolism ; Pyridines ; pharmacology ; therapeutic use ; Random Allocation ; Rats ; Reverse Transcriptase Polymerase Chain Reaction ; Tumor Necrosis Factor-alpha ; genetics ; p38 Mitogen-Activated Protein Kinases ; antagonists & inhibitors ; metabolism

Objective To compare the relative dose of small fields measured by clinically common detectors and those obtained from Monte Carlo simulation in order to obtain the accurate measurement method, and to modify the inappropriate detectors.Methods The percentage depth-dose distribution curve and profile (flatness and symmetry) curves were collected at 2 cm×2 cm, 3 cm×3 cm, and 4 cm×4 cm under 6-MV X-ray of Trilogy linear accelerator by CC13, PFD, SFD, and blue phantom.The results were compared with the stimulation results from Monte Carlo method (the current gold standard).The correction factors for the detectors with large error were calculated to provide reference data for clinical practice.Results The results measured by SFD detector were most close to the results from Monte Carlo simulation.The measurement errors of CC13 and PFD detectors were large.The correction factor in the penumbra for CC13 and PFD detector was 0.664-1.499.Conclusions SFD detector is better than CC13 and PFD detector in the measurement of small fields, but CC13 and PFD detector can provide reference data for clinical practice after the corresponding correction.