Twenty-nine thyroid tissue samples were collected from patients with thyroid nodules.The total RNA were extracted,the gene expressions of TFF3,HMGA2,C1orf24,and DDIT3 were detected by RT-PCR.In comparison with normal thyroid tissues,the expression of C1orf24 mRNA was decreased in the follicular thyroid adenoma (FTA) group,but increased in the follicular thyroid carcinomas (FTC) group.The expressions of DDIT3 and HMGA2 mRNA were increased in both FTA and FTC groups,and were even higher in the latter.The expressions of TFF3 mRNA level were decreased in FTA and FTC.The data suggested that molecular markers C1ort24,DDIT3,HMGA2,and TFF3 in thyroid tissue seem to be helpful in the differential diagnosis between follicular adenomas and carcinomas.

Objective To discuss the efficiency and safety of transjugular intrahepatic portosystemic shunt(TIPSS) in treatment of cirrhotic patients with gastroesophageal variceal bleeding.Methods52 patients who had gastroesophageal variceal bleeding were treated with TIPSS,with 11 patients of them being active bleeding,23 patients being moderate to massive ascites.Results50 patients were treated successfully with the successful rate of 96.2%.The pressure of potal dropped from 3.87?0.50kPa to 2.45?0.40kPa(P

patients with refractory ascites were treated 921 times using B type ascites concentrating device made in our institute.The mean time of reinfusion was(2 3?0 9)h and the average volume of ascites withdrawn from abdominal cacity was(6 820?2 315)ml.The weight was reduced(6 7?2 4)kg.The urine volume in 24 hours increased from (257 8?235 6)ml to (725 8?436 9)ml( P

0.05). The median diameter of the nodules in survival group was smaller (4.3?2.2cm)than that in death group(7.3?2.7cm, P0.05). Ten of 14 survived patients remained clinical free of tumor. In conclusion, RFA could extend survival time for patients with unresectable PHC.

Objective:To explore the relationship between rs3758391 polymorphism of SIRT1 gene and depressive symptoms, and to further understand the role of SIRT1 gene in major depressive disorder. Methods:A total of 323 patients with major depressive disorder were retrospectively collected from the Jinhua Second Hospital, Wenzhou Kangning Hospital and Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine. A total of 347 healthy subjects were also recruited. Depressive symptoms were evaluated by using the Hamilton Depression Scale (HAMD), and rs3758391 polymorphism was genotyped by using the TaqMan SNP genotyping Assay. The effect of rs3758391 polymorphism on the expression of SIRT1 mRNA in brain was analyzed by BRAINEAS database, and the difference of depressive symptom severity among three genotypes at rs3758391 polymorphism was compared by multivariate analysis of variance. Results:The frequencies of C and T alleles of rs3758391 polymorphism in SIRT1 gene were 18.7% and 81.3% in the case group, and 14.3% and 85.7% in the control group, respectively. The allelic distribution frequencies between the two groups were significantly different (χ2=4.86, P=0.03). There were significant differences in mood, cognitive impairment and HAMD scores among patients with different genotypes of rs3758391 polymorphism (P<0.05). The results of eQTL analysis showed that rs3758391 polymorphism was significantly correlated with the expression of SIRT1 gene in occipital cortex (OCTX) (P=0.003). Conclusion:rs3758391 polymorphism of SIRT1 gene may be a risk factor for major depressive disorder in Chinese Han population, and is associated with the severity of depressive symptoms, especially with emotional symptoms and cognitive impairment.

Objective To investigate the expression of Th1/Th2 cytoki nes in early symptomatic syphilitic lesions and its relationship with the sero-c onversion of RPR test in patients with syphilis. Methods The expression of Th1/Th2 cytokines in lesions from 30 patients with early symptomatic syphilis was i mmunohistochemically detected with ABC method. The serum titers of RPR test in t hese patients were measured in 1, 3, 6, 9 and 12 months after routine benzathine penicillin treatment. Results Among 10 cases of primary syphilis, the express ion of both Th1 and Th2 cytokines in the lesions was found in 9 cases, while onl y Th1 cytokine expression was observed in the remainder case; and the sero-conve rsion of RPR test occurred in all 10 cases during the follow-up period. Among 20 cases of secondary syphilis, Th1/Th2 cytokines expressed in the lesions in 16 c ases, and only Th2 cytokines expressed in 4 cases; and the sero-conversion of RP R test was found in 12 cases during the follow-up period. The expression of Th1 cytokines in early syphilitic lesions was positively correlated with the sero-co nversion of RPR test. The higher the expression of IFN- the more likely the s ero-conversion of RPR test. Conclusion The early activation and persistence of the expression of Th1 cytokines may play an important role in the clearance of pathogens.

BACKGROUND: Pathological change of synovium in rheumatoid arthritis (RA) has the characteristic of tumor-like growth, it appears thickening of the synovium tissue and the formatiom of pannus, which generate periarticular erosion and destruction. Multiplicate cell factors and growth factors participate in the development course of tumor-like lesion of synovium, and the tumor necrosis factor-α(TNF-α) and vascular endothelial growth factor(VEGF)play important roles in the development of RA and the formation of pannus.OBJECTIVE: To observe the contents of plasma TNF-α of collagen-induced arthritis and the expression change of VEGF of synovium at different time point, and investigate the effect and correlation of TNF-α and VEGF in the pathogenesis of RA.DESIGN: Randomized grouping experiment taking animals as subjects.SETTING: Institute integrated traditional and western medicine of Xiangya Hospital of Central South University.MATERIALS: The experiment was finished from July to November 2003 in the laboratory of institute integrated traditional and western medicine.Forty SD rats aged 45-50 days were selected, the rats were randomly divided into the normal control group (n=10) and collagen-induced arthritis model group(n=30).METHODS: 10 mg Cattle collagen type Ⅱ and 5 ml full Freund adjuvant were grinded together, 100 μL of which were intradermally injected at the root of tails of rats, collagen-induced arthritis model of rats were re-immunized with the above-mentioned methòd and dosage after 21 days. The accumulated points of arthritis index was evaluated based on degree and extent of flare and the condition of tumefaction and deformation, the higher the accumulated points of arthritis index were, the more serious the arthritis symptom was. The blood was obtained by decapitation after 25 days in normal control group, and in the collagen-induced arthritis model group the blood was obtained by decapitation 25,30,35,40,45 days after immunization (model establishing), the contents of plasma TNF-α of collagen-induced arthritis rats at different time point was detected by radio-immune assay, the level of expression of VEGF in synovium tissue were detected with immunohistochemical method simultaneously, the correlation of invasion time and the neovascularization of synovium. The accumulated points of arthritis index . TNF-α and VEGF was observed. The correlation of TNF-α and VEGF was analyzed with the linear correlation analysis, the correlation of the accumulated points of arthritis index and TNF-α. VEGF was analyzed with the rank correlation analysis.MAIN OUTCOME MEASURES: The correlation of invasion time of collagen-induced arthritis with the accumulated points of arthritis index, with the plasma content of TNF-α and the expression of VEGF, the correlation analysis of the plasma content of TNF-α of collagen- induced arthritis rats with the expression of VEGF in synovium.RESULTS: Forty rats attended the experiment, all of them entered the final analysis. the neovascularization of synovium was increased, synovium was thickening, the accumulated points of arthritis index was gradually increased, and the contents of TNF-α and level of VEGF were increased accordingly with the process of the invasion time of the collagen-induced arthritis rats; Its accumulated points of arthritis index had the positive correlation with the level of expression of VEGF (r=0.535 ,P ＜ 0.05)and had the correlated increasing tendency with the contents of TNF-α, but there was no significant difference(r=0.371 ,P ＞ 0.05 ). the plasma contents of TNF-α had the positive correlation with the level of expressions of VEGF (r=0.893,P ＜ 0.01 ).CONCLUSION: The TNF-α and VEGF have an important effect on the inflammatory reaction of RA and Cytokine network of neovascularization of synovium, they are possibly mutually influenced and promoted and have the effect of mediating the malignant network circulation; They are the key factors among multiplicate ones which mediate the generation and development of RA, bone erosion and Mutilation.

This article was to study the micro-leakage of 3 different root canal sealers (Endomethasone, AH-Plus and GuttaFlow) by fluid filtration test, and to observe the micro-structure between walls of root canal and the sealers by SEM. The results indicated that the micro-leakage of GuttaFlow was the least and Endomethasone was the most. Statistics difference were found between all the groups. Different root canal sealer got different micro-structure between walls of root canal and sealers. So we consider that the canal sealing ability of GuttaFlow is the best among these sealers.

Objective To study the effect of magnetic stimulation on the expression of B cell lymphoma/leukemia gene 2 ( Bcl-2 ) and caspase-3 genes, and the apoptosis of neurons in rats with spinal cord injury (SCI).Methods Sixty rats were randomly divided into a magnetic stimulation group, a model group and a sham-operation group. An SCI model was established in the magnetic stimulation and model groups. The magnetic stimulation was applied at the 6th, 12th, 24th and 72nd hour after the operation to the rats in the magnetic stimulation group, and sham magnetic stimulation was given to the model group and sham-operation group rats at the same time points. Two hours after treatment, 5 rats of each group were sacrificed and their injured spinal cords were sectioned. The gene expressions were detected using immunohistochemical techniques, and apoptosis of neurons was observed by the TUNEL method. Results Few apoptotic cells were found in the sham-operation group, but more were found in the model group. Apoptotic cells in the magnetic stimulation group were significantly fewer than in the model group. The expression of both Bcl-2 and caspase-3 in the magnetic stimulation and model groups was significantly higher than in the sham-operation group at the different time points. Expression of Bcl-2 in the magnetic stimulation group was significantly higher than in the model group, but expression of caspase-3 in the magnetic stimulation group was significantly lower than in the model group. Conclusions Magnetic stimulation up-regulates the expression of Bcl-2 genes and down-regulates the expression of caspase-3 in injured neurons. Magnetic stimulation might have protective and rehabilitative effects after human SCI.

Objective To explore the operation skills of laparoendoscopic single site surgery ( LESS) of total hysterectomy , to expand the application of LESS in the field of in gynecologic surgery . Methods A total of 23 cases of total hysterectomy were completed under laparoendoscopic single site surgery in Peking Union Medical College Hospital from January 2012 to August 2013, applying with combination of the traditional laparoscopic and special LESS apparatuses , intelligent electronic coagulation and excision device and the self-fixed absorbable sutures ( V-LOC).The datas of the patients during the operations and the follow-up were recorded and analyzed Results Twenty-three cases LESS-TH are accomplished.The weight of uterus was (230+38) g.The operation time was (73+22) minutes, with the intraoperative blood loss (99 ±53) ml.The postoperative intestinal function recovery time was (13 +4) hours, and postoperative hospitalized time was ( 1.8 ±0.6 ) days, with the postoperative pain visual analogue scale 3.9 ±1.6.There were no complications reported during intraoperative and postoperative time.All of our patients was finished the follow-up from 14 d to 2 months.As usual, vaginal discharge is normal, wound healed well, most of the wounds healing (19/23) hidden in umbillicus, no obvious scar, vaginal stub wound healed well Conclusions ( 1 ) LESS can accomplish total hysterectomy of uterus of gestational age less than 8 weeks safely and effectively .( 2 ) Combination of traditional laparoscopic and special LESS appatatuses , the use of intelligent energy devices and V-LOC to suture vaginal stub could make the total hysterectomy by LESS much easier and safer .