Objective To explore the value of phase-contrast magnetic resonance imaging (PC-MR) in diagnosis of secundum atrial septal defect (ASD) in pediatric patients. Methods Totally 42 patients (aged from 9 months to 15 years) with secundum ASD proved with tansthoric echocardiographic (TTE) were evaluated with PC-MRI. Images of the flow through ASD were obtained with PC-MRI. The distances of ASD rim to superior vena cava (SVC), inferior vena cava (IVC), atrioventricular valves (AVV) and right upper pulmonary vein (RUPV), as well as the entrances of the vena cava and right upper pulmonary vein (RUPV) were assessed. Results The sizes of ASD and distances of ASD rim to the adjacent structures (SVC, RVC, AVV and RUPV) at PC-MRI were well consistent with those of TTE in 42 patients (P<0.001). PC-MRI results in 26 patients correlated well with surgical results (P<0.001). With different velocity encoding, compared with surgical results, measurements of ASD's sizes were more accurate when setting velocity from 50 to 70 cm/s than 90 cm/s. Conclusion The shape of ASD can be virtually depicted with PC-MRI. PC-MRI can accurately assess the defect size, number, rim distances to adjacent structures, therefore providing a new method for depiction of congenital heart anomaly.

Objective The objective of this study was to evaluate the prognostic value of postoperative prognostic nutritional index(p-PNI)in the prognosis of colorectal cancer patients.Methods Retrospective analytical cases came from 89 patients with radical resection of colorectal cancer confirmed by the pathological section in Nanjing Drum Tower Hospital Suqian City People's Hospital from August 2009 to August 2012.The p-PNI was calculated based on the results of blood routine and biochemical tests after the first visit to the hospital.The Youden index was calculated using the receiver operating characteristic curve(ROC),and the PNI value combined with the best sensitivity and specificity was used as the threshold for the PNI packet.Kaplan-Meier method was used to study the effect of p-PNI on postoperative prognosis of patients with colorectal cancer.Cox regression model was selected to study the effect of p-PNI on the prognosis of colorectal cancer patients after surgery.Results The p-PNI of 89 cases of colorectal cancer patients was 25.18~60.74(43.81±6.47).The p-PNI in patients(less than 70 years old)was significantly increased when the number of lymph node metastases was less than 4,the preoperative CEA was less than 5ng/mL,and the intraoperative hemorrhage was less than 150 mL(P<0.05).When the p-PNI value was 43,the Youden exponent was the largest.Data analysis showed that p-PNI was correlated with age,lymph node metastasis,intraoperative blood loss and preoperative CEA(P<0.05).The survival rate of patients with high p-PNI was higher than that of low p-PNI group(X2=15.639,P<0.001).Single factor and multivariate analysis confirmed that p-PNI was an independent factor in the prognosis of patients with colorectal cancer(HR=2.179,95% CI:1.057~3.561,P<0.001).Conclusion p-PNI is an independent prognostic factor in patients with colorectal cancer,which is associated with long-term prognosis after surgery.

Objective To evaluate the feasibility and efficacy of suspended method in scar hidden technology in laparoscopic appendec-tomy ( LA) . Methods 27 patients underwent scar hidden laparoscopic appendectomy with the aid of suspended method. Silver probe was pierced abdominal cavity,bended into a hook shape and fixed appendix,then underwent appendectomy. Results 27 patients finished surgery successfully,the operative time was 25~100 min ( mean, 45 min) ,the blood loss during operation was 10~50 mL ( mean,20 mL) ,the hos-pital stay was 3~8 d ( mean,4 d) . Conclusion Scar hidden technology in laparoscopic appendectomy with the aid of suspended method is safe,feasible and further improves the cosmic result.

AIM: To investigate the effect of 3-methyladenine (3-MA) combined with trichostatin A (TSA) on triple-negative breast cancer cells and the mechanism involved.METHODS: The viability of MDA-MB-231 cells was detected by MTT assay, the migration ability was determined by scratch assay, and the expression of autophagy-related proteins was detected by Western blot.RESULTS: TSA significantly inhibited the viability of MDA-MB-231 cells in a time-and dose-dependent manner.The results of scratch assay showed that TSA inhibited cell migration ability.Western blot data indicated that TSA resulted in a moderate increase in LC3-Ⅱ expression.Moreover, 3-MA inhibited cell autophagy induced by TSA, and combination of 3-MA and TSA further inhibited the viability of MDA-MB-231 cells.CONCLUSION: Combination of 3-MA and TSA may effectively inhibit the growth of triple-negative breast cancer cells.

Objective To investigate the risk factors, treatment methods and significance of the cervical venous angle lymph node metastasis in differentiated thyroid cancer. Methods The clinical data of 222 patients with thyroid papillary carcinoma from December 2012 to January 2014 were collected. The surgical methods, complications and postoperative complications and pathology were analyzed. Results Lymph node metastasis was found in 133 cases. when VI lymph node was positive , the lateral cervical lymph node positive rate was 43%(57/133) inⅡDistrict, 54%(72/133) inⅢDistrict,ⅣDistrict 45%(60/133) inⅣDistrict, 60%(80/133) in jugular angle, and 6%(8/133) in V District. The levels of bleeding volume, operation time and hospitalization time in functional neck dissection (FND) group were significantly higher than those in anterior cervical muscle group and reserved anterior cervical muscle group (P<0.05). Single factor analysis showed that diameter of the tumors, thyroid membrane invasion and central region lymph node metastasis had correlations with venous angle lymph metastasis (P<0.01). Logistic regression analysis showed that thyroid membrane invasion (OR=3.539), central region lymph node metastasis (OR = 1.617), diameters of the tumors (OR = 1.321)were the risk factors of cervical venous angle lymph node metastasis. Conclusions Patients with tumor diameter equal to or more than 1.5 cm, thyroid membrane invasion and lymph node metastasis number greater than or equal to 2 should be performed with lateral neck lymph node dissection. Also the venous angle lymph node dissection should be done in these patients so as to increase radical rate.

Objective To evaluate the effect of procaine on prevention of skin slap necrosis after modified radical mastectomy in breast cancer.Methods 106 breast cancer patients were randomly divided into treatment and control groups.In the treatment group,procaine(1% 100ml diluted in 300ml mormal saline,42℃)were compressed under the skin flap in operation,the control group received same amount of normal salin instead.The rates and sizes of skin flap necrosis were obeserved and compared.Results There were 13 cases suffured from skin flap necrosis among 106 breast cancer cases who received surgery operation.The rate of the flap necrosis in treatment group was5.76%(3/52),and the control group was 18.51%(10/54),there was significant difference(P

Objective To evaluate the nutritional status of iodine of pregnant and lactating women in coastal and inland areas of Zhejiang province,and to provide scientific basis for iodine supplementation.Methods In 2009,five coastal cities,five coastal counties and three inland areas from Zhejiang province were selected by the cluster sampling method,and one sub-district(township) was randomly selected in each city (county),then one community (village) was randomly selected in each sub-district (township).Thirty pregnant women,thirty lactating women and fifty children aged 8 - 10,were randomly selected in each community(village) as the investigation objects to collect instant urine samples to detect urine iodine,and to collect thirty resident edible salt and some water samples to detect salt iodine and water iodine,if the numbers of water source were more than 5 then 1 water sample was collected by their location of east,south,west,north and center in each community(village),otherwise,the numbers of water samples collected were equal to the number of community (village).Results The medians of salt iodine of coastal city,coastal county and inland area were 28.42,25.29,and 33.24 mg/kg,respectively,and the medians of water iodine correspondingly were 5.41,11.52,and 2.80 μg/L,respectively.The medians of urinary iodine of pregnant and lactating women in Zhejiang province were 148.72 and 161.34 μg/L,respectively,which were less than that of children aged 8 - 10(231.02 μg/L,Z =8.57,8.24,all P ＜ 0.017).The medians of urinary iodine in pregnant women from different areas were ranked in order as inland areas(211.42 μg/L),coastal counties (150.51 μg/L) and coastal cities (123.33 μg/L,Z =2.80,5.31,2.42,all P ＜ 0.017),and in lactating women,the medians of urinary iodine in inland areas( 197.43 μg/L) was higher than that in coastal cities( 139.64 μg/L,Z =4.03,P ＜ 0.017).Conclusions The overall levels of iodine nutrition in lactating and pregnant women in Zhejiang province are in the appropriate level,but that of the pregnant women in the coastal cities is inadequate.

Drugs, Chinese Herbal ; administration & dosage ; Medicine, Chinese Traditional ; Phytotherapy ; Translations

Objective To establish a method for rapidly detecting the G-protein ?3 subunit (GNB3) 825 site single nucleotide polymorphism (SNP) and to analyse the relationship between GNB3 825 site gene SNP and obesity. Methods The real-time fluorescent PCR was employed to analyse the GNB3 825 site gene SNP of 420 samples from 21 provinces and the the frequencies of genotypes were compared with those detected by gene sequencing. GNB3 825 site genotype, body weight, body mass index (BMI) and fat content were examined from 207 subjects and the correlation between GNB3 825 site gene SNP and obesity was analysed. Results The result by real-time fluorescent PCR showed that the frequencies of 825T and 825C haploid were 46.90% and 53.10%, respectively, and the frequencies of 825TT, 825TC and 825CC genotype were 22.38%, 51.42% and 28.10%, respectively, with no other genotype detected, which was consistent with the result by gene sequencing. BMI and fat content were significantly higher in subjects with GNB3 825TT than in subjects with other genotypes. Body weight was much higher in subjects with GNB3 825TT genotype than in subjects with 825CC genotype, but not significantly different with 825CT genotype. Conclusion A new rapid method for the detection of GNB3 825 site SNP has been successfully established. There existed significant correlation between GNB3 825TT genotype and obesity.

Based on the conserved region nucleotide sequences of five potato viruses/viroid(Alfalfa Mosaic Virus,ALMV;Cucumber mosaic virus,CMV;Cucumber mosaic virus-satellite,CMV-sat;Potato virus Y,PVY;Potato spindle tuber viroid,PSTVd) and one inner control(18S rRNA),the microarray containing specific oligonucleotide probes and PCR probes were designed and fabricated.The effects of probe concentration,hybridization time,hybridization temperature and spotting solutions on microarray hybridiazation were evaluated.Finally the specificity of optimized plant virus detection array was validated.No significant effect on hybridization signal intensity was observed when the concentration of the oligonucleotide probes ranged from 5 to 20 ?mol/L,there was a linear relationship between the concentration of PCR probe and hybridization signal intensity.The greatest signal intensity were obtained when hybridized at 45℃ for 4 h,and the oligonucleotide probes and PCR probes had a similar effect on microarray hybrization.Among the different spotting solutions,DMSO produced a good reproducibility.The plant virus could be detected specifically by oligonucleotide probe microarray and PCR probe microarray after optimization.