Objective To learn mental health,life events and stress response of immigrant medical professionals. Methods Symptom checklist ( SCL-90), Life event scale ( LES), and Coping questionnaire (CQ) were used for assessment. Results SCL-90 ( 135.95 ± 32. 56 ), Somatization ( 1.62 ± 0. 38 ),obsessive-compulsion ( 1.75 ± 0. 53), depression (1.66 ± 0. 55) ,anxiety ( 1.52 ± 0. 54), hostility ( 1.53 ±0.45) ,and psychoticism (1.45 ±0.46) were even serious in immigrant medical professionals (all P＜0. 05). SCL-90 factor score was positively correlated with LES total score and LES factor score ( both P ＜0. 05 ). However, SCL-90 factor score was negatively correlated with problem-solving and coping style score of CQ (P ＜ 0. 01 ). Conclusion As mental health and life event responses were concerned, more attention should be paid to the immigrant medical professionals.

Objective To learn the psychological health state,life events and coping styles of the non-native policemen.Methods Symptom checklist (SCL-90),Life event scale (LES) and Coping questionnaire (CQ) was tested to native policemen(n=238) and non-native policeman(n=136).Results Score of SCL-90 (159.68±50.46) ,depression(1.79±0.62) ,photic anxiety(1.54±0.63) ,addition items(1.82±0.59) factors in non-native policemen were higher than that in the native policemen,and there was significant deference(P＜0.05).The concerned analyses showed non-native policemen score of SCL-90 was significantly positively related to LES total score and sub-scale factor (P＜0.01,P＜0.05).The non-native policemen score of SCL-90 was significantly negatively related to settle problem factor of CQ (P ＜ 0.01),and other factors of CQ was significantly positively(P ＜0.O1).Conclusion The poor psychological health state and live emergency events of the non-native policemen should be pay more attention.

Objective To learn the psychological health state,life events and coping styles of teachers.Methods 376 teachers were assessed with Symptom checklist (SCL-90),Life event scale (LES) and Coping questionnaire (CQ).Results The analysis showed non-native teachers score of SCL-90(150.74±44.57),somatization(1.69±0.58),obsessive-compulsive(1.84±0.58),depression(1.77±0.60),anxiety(1.63±0.55),hostility(1.68±0.61) and psychoticism(1.54±0.48) factor were higher than the native(P＜0.01).The concerned analyses showed non-native teachers score of SCL-90 was significantly positively related to LES score factor (P＜0.01).Teacher score of SCL-90 was significantly negatively related to settle problem factor of CQ(P＜0.01),and other factors of CQ was significantly positively.Conclusion The poor psychological health state and live emergency events of the non-native teachers should be pay more attention.

Objective To investigate the effects of cystectasia with sodium hyaluronate solution on ketamine related cystitis.Methods From June 2008 to October 2012,29 patients with ketamine related cystitis were analyzed,among which 27 were males and 2 were females.Their age ranged from 18 to 36 years old with a mean age of 25.All of them had frequency,urgency,urodynia and suprapubic pain.Voiding volume ranged from 10 to 160 ml and the interval duration ranged from 10 to 60 min.The test of ketamine in urine was positive.Patients were divided into four groups according to the treatment modality,namely the surgical treatment group (group A,n =11),surgery followed by addiction relapse group (group B,n =7),drug treatment group (group C,n =6) and non-drug treatment group (group D,n =5).Patients in group A and B underwent cystectasia with sodium hyaluronate solution under combined spinal-epidural anesthesia,and patients in group B were reported of addiction relapse within 2 weeks after cystectasia treatment.Patients in group C were free of the addiction to ketamine,while those in group D still rely on the ketamine.The average urine volume,OABSS and PUF scores were recorded 2 weeks and 4 weeks after the treatment.Results Two weeks after cystectasia,the average urine volums in group A and B were (107.7±39.6) ml and (95.0±35.5) ml respectively,which was larger than that in group D (42.0±13.5) ml,plus the volume in group A was larger than that in group C (63.3± 16.3) ml.The aforementioned differences were considered statistically significant (P＜0.05).As for OABSS and PUF scores,scores in group A [(6.0±2.6),(14.8± 4.2)] were lower than those in group C [(9.5±2.4),(22.5±2.2)].Furthermore,scores in group B [(9.0±2.4),(19.57±2.7)] were lower than those in group D [(12.2±1.9),(26.4±3.5)] (P＜0.05).Four weeks later,the average urine volume,OABSS and PUF scores in group A [(106.4±37.5) ml,(5.6± 2.5),(13.5±4.0)] and group C[(113.3±27.3) ml,(6.3±2.2),(14.5±2.7)] were significantly different from those in group B [(52.1±21.6) ml,(11.1±1.3),(26.4±2.8)] and group D [(40.0±13.7)ml,(12.0±1.6),(26.6±3.6)] (P＜0.05).While,no obvious distinction was observed between group A and group C,group B and group D in terms of average urine volume,OABSS and PUF scores at 4 weeks postoperatively (P＞0.05).Conclusions Cystectasia can efficiently alleviate lower urinary tract syndromes in patients with ketamine related cystitis.

Objective To assess the influence of different processing technique on the quality of Exocarpium citri grandis.Methods The RP-HPLC method was adopted to determine the naringin content in Exocarpium citri grandis.The chromatographic conditions were: Kromasil ODS column(250 mm?4.6 mm),mobile phase being methanol-water-acetic acid(35∶61∶4),flow rate 1.0 mL/min,detection wavelength at 283nm and column temperature at 25 ℃.Results There were obvious differences in the naringin content of Exocarpium citri grandis which was processed by different methods: the naringin content processed by electro static drying method was much higher than that by bake drying method, natural drying method and vacuum drying method.Conclusion The electro static drying method is the best way for drying Exocarpium citri grandis.

【Objective】To observe the dynamic changes of flavonoids contents of Citrus grandis(L.)Osbeck var.tomentosa Hort..【Methods】The total flavonoid content was determined by spectral photometric analysis and naringin content by HPLC,and the fingerprints of Citrus grandis(L.)Osbeck var.tomentosa Hort.were studied by HPLC.【Results】With the increase of the fruit age,total flavonoid contents in the peel and the leaves of Citrus grandis(L.)Osbeck var.tomentosa Hort.decreased obviously.Fingerprints results showed that at the early fruit age the rhoifolin content in the peel increased with the fruit age and began to decrease 62 days later,while the rhoifolin content in the leaves showed no changes.【Conclusion】In terms of active components contents and economic value,the optimal collecting time for Citrus grandis(L.)Osbeck var.tomentosa Hort.is:young fruit,34 days,and immature fruit,55 days.

OBJECTIVE To investigate theradiosensitization of combined inhibition of signal transducer and activator of transcription 3(STAT3) and hypoxia-inducible factor-1α(HIF-1α)on laryngeal squamous carcinoma of xenograft mice and its underlying mechanisms.METHODS Xenograft mice were divided into 5 groups randomly: control group(A), irradiation group(B), irradiation and AG490 group(C), irradiation and PX478 group(D), irradiation combined AG490 and PX478 group(E). The size of xenograft tumor was measured and calculated. The expression of Ki67 and HIF-1α was detected by immunohistochemical method. Western blot was used to detect the expression of PARP1.RESULTS The size of xenograft tumor in group E was smaller compared with that in group C and group D. There were significantly difference between them respectively (t=12.367,11.598,P=0.000). The expression of HIF-1α in group E was lower than that in group C and group D respectively, and there were significantly difference respectively(t=5.422, 3.000,P<0.05). Ki67 index in group E was lower compared with that in group C and group D respectively and there were significantly difference respectively (t=4.479, 4.352,P<0.05). The level of cleaved PARP-1 in group E was higher than that in group C and group D respectively and there were significantly difference respectively (t=5.507, 7.102,P<0.05). CONCLUSION Combined inhibition of STAT3 and HIF-1α can increase the radiosensitivity of human laryngeal squamous carcinoma in the xenograft mice.

OBJECTIVE: To study the expression of Cyclin D1 in nasopharyngeal carcinoma cells processed by epigallocatechin gallate(EGCG) and it's significance, and revealed the anti-tumor mechanism of EGCG against nasopharyngeal carcinoma. METHOD: CNE-2 cells were treated by EGCG at different concentrations, the morphological changes of CNE-2 cells were observed by inverted microscope; the inhibition ratio of cell proliferation was detected by MTT colorimetric method, flow cytometry was used to analyze the changes of cell cycle. The expression of Cyclin D1 mRNA was detected by RT-PCR. RESULT: After treated by EGCG, the CNE2 cells decreased in amount and density, some of which became roll and small; Floating and dead cells can be seen in the inverted microscopy; cell proliferation was significantly inhibited in a time and dose dependent (P < 0.05). CNE-2 cells were arrested at G1/G0 phase. The expression of Cyclin D1 mRNA was down-regulated by EGCG with concentration and action time dependent (P < 0.05). CONCLUSION EGCG resisted nasopharyngeal carcinoma by inhibiting the cell proliferation, The down regulation of Cyclin D1 mRNA expression in a time and dose dependent may be the possible mechanisms.
Carcinoma ; Catechin ; analogs & derivatives ; pharmacology ; Cell Cycle ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cyclin D1 ; metabolism ; Humans ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms ; metabolism ; pathology

AIM: To detect unknown CD44 variants(CD44v) in nasopharyngeal cancer by using reverse transcription-polymerase chain reaction(RT-PCR) to analyze the expression of cell adhesion protein CD44 gene in nasopharyngeal cancer tissue and cell lines.METHODS: Specific primers at up start code,down terminal code of CD44 and primers at the middle,splicing points of variable splicing exon v10 of CD44 were designed.cDNA of nasopharyngeal cancer tissues,5-8F and HNE1 cell lines were analyzed by RT-PCR.Products of RT-PCR were sequenced and further analyzed by bioinformatics.RESULTS: The new CD44v sequence possessed 1634 bp with a completed open reading frame.The start code was at 12 bp site and terminal code at 1301bp site.It was predicted to code 429 amino acids,and only variable splicing exon 10 existed in the flexible region.It was given an accessible number EF581837 by GenBank.CONCLUSION: A new CD44 variant predicted to code 429 amino acids exists in the studied nasopharyngeal cancer tissues and cell lines.

Objective To investigate the intralaboratury and interlabomtory variations of measurements for ALT and AST among four domestic reference laboratories. Methods The International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) reference procedures and IFCC procedures without pyridoxal 5-phosphate (PLP) were performed in the reference laboratories. Intralaboratory and interlaboratory CVs were compared with those in 2006 and 2007 IFCC External Quality Assessment Scheme for Reference Laboratories (RELA). Meanwhile, deviations of results for ALT, AST and AST/ALT between two methods were calculated. Results Interlaboratory CVs were generally higher than intralaboratory CVs. Interlaboratory CVs among the 41 laboratories were lower than these in RELA. Results of ALT and AST using method with PLP were higher than those using method without PLP. Difference of AST/ALT ratio between the two methods was significant. Conclusions For reference measurement of the 2 enzymes, interlaboratory CVs of < 3.5 are achievable on frozen serum materials. Measurements on lyophilized materials may have higher CVs. Further studies are needed for the investigation of the differences between results obtained in the absence and presence of PLP.