Objective To evaluate clinical characteristics and prognostic factors of synchronous multiple primary esophageal carcinomas (SMPEC).Methods Clinical data including sex,age,smoking history,regions,lymph node status,length of tumor,therapeutic methods and survival data of 52 patients with SMPEC were analyzed.The rates of OS depending on the different factors were calculated using the method of Kaplan-Meier analysis.Log-rank test was used for univariate survival analysis and Cox's proportional hazards regression model was used for multivariate survival analysis.Results The 1-,3-,5-year OS rates and the median survival time (MST) were 65.4 ％,17.3 ％,7.7 ％ and 15.0 months for the whole cohort,75.0 ％,33.3 ％,16.7 ％ and 19.5 months for the surgery subgroup,62.5 ％,10.0 ％,5.0 ％ and 14.5 months for the 40 non-operative patients.Multivariate analysis of prognostic factors identified that tumor length and M stage were independent prognostic factors for the whole cohort,while tumor length,M stage and chemotherapy were independent prognostic factors for the radiotherapy subgroup patients.Conclusion The tumor length and M stage are independent prognostic factors for the SMPEC patients.Combined radiotherapy with chemotherapy seems to bring survival benefit and maybe a better management choice for unresectable and non-operative SMPEC.

Adult ; Chromosome Aberrations ; Female ; Humans ; Infant, Newborn ; Karyotyping ; Male ; Pedigree

OBJECTIVE: To establish an effective HPLC method for determinating the contents of salviaflaside and rosmarinic acid in Prunella vulgaris. METHODS: An Agilent Eclipse XDB-C18 column (4.6 mm × 250 mm, 5 μm) was used with gradient mobile phase of acetonitrile-water(1.0% acetic acid) at a flow rate of 1.1 mL · min-1. UV detection wavelength was 319 nm, and the column temperature was 30°C, the sample injection volume was 10 μL. RESULTS: Good linearity was obtained in the range of 0.0067-4.2 μg and 0.047-9.4 μg for salviaflaside and rosmarinic acid, respectively. The method recoveries of salviaflaside and rosmarinic acid were 99.99% and 100.2%, RSDs were 1.13% and 1.64%, respectively. The contents of salviaflaside and rosmarinic acid were more than 0.1‰ and 1%, respectively. CONCLUSION: The HPLC method is simple, rapid, accurate and suitable for the determination of salviaflaside and rosmarinic acid, which can be used for the quality control of Prunella vulgaris L. Copyright 2012 by the Chinese Pharmaceutical Association.

Antiporters ; genetics ; Base Sequence ; Female ; Glycogen Storage Disease Type I ; diagnosis ; genetics ; Humans ; Infant ; Monosaccharide Transport Proteins ; genetics ; Mutation ; Polymerase Chain Reaction ; Sequence Analysis, DNA

OBJECTIVE: To construct a plant effective expression vector driven by a fruit specific promoter for the expression of hepatitis B virus surface antigen (HBsAg), to further improve the expression of exogenous gene in plant, and to prepare for the development of an effective anti-hepatitis vaccine. METHODS: Tomato fruit-specific promoters' gene 2A12 and E8 were respectively introduced to pBPFOmega7 to form pB2A12 and pBE8. The DNA fragment containing HBsAg-s gene from plasmid YEP-HBs was inserted respectively into pB2A12 and pBE8 to form pB2A12-HBs and pBE8-HBs. The fragment containing "p35S+2A12+Omega+HBsAg-s+Tnos" of the pB2A12-HBs was sub-cloned into plasmid pCAMBIA1301 to yield the reconstructed plant binary expression plasmid pCAM2A12-HBs, and the fragment containing "p35S+E8+Omega+HBsAg-s+Tnos" of the pBE8-HBs was sub-cloned into plasmid pCAMBIA1301 to yield the plasmid pCAME8-HBs. The inserted gene HBsAg and fruit-specific promoters in the reconstructed plant binary expression vectors were confirmed by sequencing. Then, pCAM2A12-HBs and pCAME8-HBs were directly introduced into Agrobacterium tumefaciens strain EHA105. RESULTS: Digestion with restriction enzymes proved that all recombinant vectors had the inserts with expected length of the target fragments, and the sequencing results were confirmed correct. CONCLUSION: In this study, plant expression vector containing HBsAg gene driven by fruit specific promoter and CaMV35s promoter was successfully constructed.

Objective To explore the influence of uncertainty in illness in compliance of respiratory function exer-cise and rehabilitation after surgery in patients with coronary artery bypass graft (CABG) surgery. Methods Mishel uncer-tainty in illness scale and compliance of respiratory function exercise scale were used to collect data in 108 patients with CABG. The correlation of the uncertainty in illness and compliance of respiratory function exercise was analyzed. Patients were divided into three groups (high score, medium score and low score groups) according to the detection of uncertainty in illness. Values of compliance of respiratory function exercise, postoperative care time, postoperative ventilation time, postop-erative hospital stay duration, 6-min walking test (6MWD) and left ventricular ejection fraction (LVEF) were compared be-tween three groups. Results The uncertainty in illness was in medium level (95.51±9.48) in patients with CABG surgery, which was negatively correlated with compliance of respiratory function exercise (r=-0.926, P<0.01). The postoperative venti-lation time and postoperative care time were less in low score group than those of medium score group and high score group. The compliance of respiratory function exercise, 6-min walking test and postoperative LVEF were better in low score group than those of medium score group and high score group. Conclusion Medical personnel should take targeted interventions to reduce the uncertainty in illness in patients, enhance the compliance of respiratory function exercise, reduce the postopera-tive complications and promote early recovery of patients.

Objective To observe the expression of Na+/I- symporter(NIS) in cultured lactating mammary cells with different levels of iodine and the effect of tumor necrosis factor-α(TNF-α). Methods Original generation of mouse lactating mammary cells cultured in vitro were divided into low iodine group Ⅰ (LI-Ⅰ), low iodine group Ⅱ (LI-Ⅱ), adequate iodine group(AI), high iodine group Ⅰ(HI-Ⅰ), and high iodine group Ⅱ(HI-Ⅱ). Cells were cultured in DEME/F12 culture medium for 24 h with different concentrations of iodine (0,5,50,3000 and 10 000 μg/L, respectively), and TNF-α( 10-2 mg/L) was added to some of cultured cells for 24 h. The expression of NIS mRNA of lactating mammary cells was determined by real-time quantitative PCR and the expression of NIS protein was detected by In-Cell Western. Results In iodine alone group, the expression of NIS mRNA in LI-Ⅰ group [ (64.66 ± 14.99) x 10-4] was higher than that of AI group[ (22.76 ± 7.36) × 10-4, P ＜ 0.01 ]; HI-I group[ (10.18 ±3.53) × 10-4] and HI-Ⅱ group[ (8.59 ± 2.89) × 10-4] were lower than that of AI group(all P ＜ .0.05); With increased iodine concentration, the expression of NIS mRNA decreased. The expression of NIS mRNA in LI-Ⅰ group [(2.72 ± 0.45) × 10-4], LI-Ⅱ group[ (2.69 ± 0.68) × 10-4] and AI group[(1.80 ± 0.67) × 10-4] with iodine plus TNF-o were all lower than that of LI-Ⅰ group, LI-Ⅱ group[ (29.82 ± 4.47 ) × 10-4], and AI group without TNF-α (all P ＜ 0.01). In iodine plus TNF-α, the expression of NIS mRNA in HI-Ⅰ group[(6.58 ± 2.87) × 10-4] and HI-Ⅱ[(7.04 ± 1.36) × 10-4] group were all higher than that of AI group(all P ＜ 0.05); With increased iodine deficiency or iodine excess, the expression of NIS mRNA increased. With increased iodine concentration, the expression of NIS protein decreased in iodine alone group. The expression of NIS protein in iodine plus TNF-α was all lower than that in iodine alone group. In iodine plus TNF-α, the expression of NIS protein increased in both iodine deficiency and iodine excess conditions. Conclusions Iodine may decrease the expression of NIS mRNA and protein of lactating mammary cells. The expression of NIS mRNA and protein of lactating mammary cells was inhibited by TNF-α under different levels of iodine.

ObjectiveTo study the morphological and functional changes of thyroid in lactating rats and their offspring in iodine deficiency and iodine excess animal models.MethodsOne hundred and twenty Wistar rats(30 males and 90 females) were selected.Based on their body weight,the 90 females were stratified and randomly divided into five groups( 18 in each group):low iodine group 1 and group 2(fed with low iodine feed and deionized water containing iodine of 0,5 μg/L) ; high iodine group 1,group 2 and control group(feed with normal diet and deionized water containing iodine of 3000,10 000,50 μg/L).After fed for 3 month,all female rats were mated with males in a ratio of 3 ∶ 1.After birth for 10 days,8 female rats and their offspring in each group were sacrificed.Changes of thyroid were observed by naked eyes.The thyroid weight was measured and pathological changes of thyroids were observed under light microscope.Results①Absolute and relative weight of lactating rats thyroid in low iodine group 1 and group 2 [ (92.02 ± 24.40 ),(77.11 ± 23.32 )mg,(0.509 ± 0.072),(0.384 ± 0.089) mg/kg] were much higher than that of control group[ (17.41 ± 9.25)mg,(0.102 ± 0.016)mg/kg,all P＜ 0.05].Absolute and relative weight of lactating rats thyroid in high iodine group 1 and group 2[(8.22 ± 0.41 ),(9.42 ±0.43)mg,(0.047 ± 0.006),(0.035 ± 0.005)mg/kg] were lower than that of control group(all P ＜ 0.05).Absolute and relative weight of lactating rats and their offspring thyroid was decreased with increase of iodide intake in the diet.②Thyroid enlargement of lactating rats in low iodine group 1 and group 2 was evident,but that of high iodine group 1 and group 2 was not.③Epithelial cell hyperplasia and smaller follicular cavity were observed in low iodine group 1 and group 2 under light microscope.Epithelial cell deformation and mostly flat were observed in high iodine group 1 and group 2.ConclusionsThyroid morphology is changed with iodide intake in the lactating rats and their offspring,and the changes are consistent between female rats and their newborns.

ObjectiveTo study the value of plasma corticotropin-releasing hormone (CRH) and the fetal fibronectin (fFN) in vaginal secretions and cervical length in predicting preterm labor.MethodsThe plasma CRH levels and fFN levels in vaginal secretions from 24 -37 weeks pregnant woman checked up in our hospital from Dec.2009 to Dec.2010 were detected by ELLISA method.The changes of these three indexes were observed with the pregnant time and were analyzed according to different pregnancy outcomes.Results Among the 112 cases of pregnant women,premature delivery in 54 cases,full-term birth 58 cases.At the 24 week of pregnancy,there were significant difference on the cervical length( [2.8 ±0.4]cm vs [3.3 ±0.5]cm,t =3.254,P =0.021 ) between premature delivery group and full-term birth group.At the 28 - 30 week,31 -32 week,33 - 34 week,35 - 36 week,the CRH were ( 162.33 ± 16.49 ) ng/L,(60.01:±: 14.56) ng/L;(352.12 ±61.01 )ng/L,( 118.04 ±53.74)ng/L; (364.55 ±56.71 )ng/L,( 122.95 ±71.41 )ng/L; (372.78 ±149.89)ng/L,(124.00 ± 19.05 )ng/L respectively in premature delivery group and full-term birth group,and there were significant differences on CRH at the four different pregnant time(t =3.687,6.875,8.652,8.524,respectively,P ＜ 0.05 ).It shows better sensitivity ( 97.92％ ),specificity ( 90.00％ ),positive predictive value(95.92％ ) and negative predictive value(94.73％ ) in predicting premature delivery by detection of CRH,fFN combined with cervical length.ConclusionDetection of plasma CRH,fFN combined with cervix length measurement can improve the predictability of premature and provide a good,reliable clinical basis for the early diagnosis and treatment for preterm premature.

According to the course character and training objective, we analyzed the necessity of the experiment teaching reform of microbiology examination . The modules of employable Skills (MES) was applied to the experiment teaching of microbiology examination tentatively. On the basis of the needs of microbiology laboratory jobs, the contents of experimental course were integrated and optimized to skills module , comprehensive training module and application module , which include fourteen study units such as basic techniques of identification of bacteria,the separation and identifi-cation of pathogenic bacteria, microbiology examination of clinical specimen etc. Intensive teaching and multiplex teaching methods were applied to each module according to the module's characteristic, teaching objectives and cognitive rules of students. This teaching reform has achieved initial results.