This study aimed to construct throe-dimensional finite element model of the mandibular complete overdenturo and to analyze the influence rules for stress distribution under different mandibular shapes. The layer cutting method was employed as a basic tool to deal with different plaster models to gain two-dimensional point data. These data were introduced to the commercial software ANSYS to construct throe-dimensional finite element model of the mandibular complete overdenturo, including nine kinds of typical shapes, such as sharpness, roundness and squareness, and etc. Static loads were imposed on denture so as to accomplish biomechanicel analysis and to study the influence rules of stress distribution for mandibular complete overdenturo under different mandibular shapes. Results revealed that the sequence of stress from high to low was squareness, roundness, sharpness and the other extrapolated, basic and inside. The throe-dimensional finite element model has high simulation accuracy and the results provide an experimental foundation and guidance for clinical work.

Objective To observe the protective effect of Erigeron Breviscapus(Vant.)Hand-Mazz(EBHM) on retinal ganglion cells(RGCs) and optic nerve in rabbits with elevated intraocular pressure(IOP). Methods Twenty rabbits with chronic elevated IOP were divided into two groups randomly: EBHM treated group(the ocular hypertension with EBHM treated subgroup and the normal IOP with EBHM treated subgroup) and untreated group(the simple ocular hypertension subgroup and the simple normal IOP subgroup). EBHM was irrigated into the stomachs to the treated group after IOP elevated continuously for 7 d.For light and electron microscopy studies,the rabbits' eyes were made into eyeball samples and optic nerve samples after 60 d.The density of RGCs,thickness of retinal nerve fiber layer(RNFL),and optic nerve axons were observed and quantitated by computer image analysis system.The ultra-microstructure changes of RGCs and optic nerve axons were observed by electron microscope.Results(①The RNFL) thickness,RGCs density and number of axons of the two ocular hypertension subgroups were decreased,compared with those of the two normal IOP subgroups(P

0.05); the levels of LL, LI, RRS in CBA group and CBA+IBT group were significantly lower than those in control group(P

OBJECTIVETo evaluate the therapeutic efficacy of sorafenib in combination with microwave coagulation therapy (MCT) and trans-arterial chemoembolization (TACE) in patients with recurrent liver cancer.

METHODSFrom January 2006 to January 2010, 90 patients with recurrent hepatocellular carcinoma (HCC) were treated with MCT and TACE in our hospital. The treatment group received sorafenib + MCT + TACE, and the control group received MCT + TACE.

RESULTSRR of the treatment group was 66.7%, which of the control group was 52.0% (P > 0.05). DCR was 83.3% in the treatment group and 64.5% in the control group (P < 0.05). Through a comparison of survival curves along with the extension of time, the survival rates of the two groups were decreased, but the treatment group (group 1) had a significantly higher one than the control group (group 2), with a statistically significant difference (P < 0.05).

CONCLUSIONSorafenib combined with MCT and TACE can improve the disease control rate and prolong the survival in patients with recurrent HCC.

Adult ; Aged ; Antineoplastic Agents ; therapeutic use ; Carboplatin ; administration & dosage ; Carcinoma, Hepatocellular ; drug therapy ; surgery ; therapy ; Catheter Ablation ; methods ; Chemoembolization, Therapeutic ; Combined Modality Therapy ; Doxorubicin ; administration & dosage ; Female ; Fluorouracil ; administration & dosage ; Follow-Up Studies ; Humans ; Iodized Oil ; administration & dosage ; Liver Neoplasms ; drug therapy ; surgery ; therapy ; Male ; Microwaves ; therapeutic use ; Middle Aged ; Neoplasm Recurrence, Local ; Niacinamide ; analogs & derivatives ; therapeutic use ; Phenylurea Compounds ; therapeutic use ; Protein Kinase Inhibitors ; therapeutic use ; Remission Induction ; Survival Rate

AlM: To investigate the association between the degree of anterioruveitis and related factors including inflammatory markers as well as sacroiliac joint imaging in patients with ankylosing spondylitis ( AS) .
METHODS: Anterior changes evaluated by slit lamp, erythrocyte sedimentation rate ( ESR ) , C - reactive protein ( CRP ) and magnetic resonance imaging of 55 cases with AS associateduveitis were retrospectively analyzed. A modified endotoxin-induced uveitis ( ElU ) clinical standard was used for uveitis grading. SPARCC sacroiliac scoring was used to evaluate bone edema of sacroiliac joint. The correlation between the degree of uveitis and sacroiliitis was assessed.
RESULTS: ln the 55 patients with AS, ElU grading scored 2-10, and SPARCC index scored 0-22. Further analysis showed that the severity of uveitis was significantly correlated with ESR (r=0. 869, P<0. 001) and CRP (r=0. 485, P<0. 001). The degree of anterior uveitis in AS patients was not correlated with inflammation of sacroiliac joint (r=0. 237, P=0. 081).
CONCLUSlON: Local autoimmunity of uveitis and sacroiliac joint inflammation with subsequent bone formation in AS might be mutually independent processes.

Objective To investigate the effect of BTB/POZ ( broad complex, tramtrack and bric a brac/poxviruses and zinc finger) on proliferation of breast cancer cell lines.Methods The eukaryotic expression plasmid pCMV-HA-BPOZ was constructed by cloning from cDNA of human genome.Western blotting was used to detect the expression of pCMV-HA-BPOZ.Cells growth assay was used to detect the effect of BPOZ on proliferation and colony formation assay was used to detect the effect of BPOZ on cell growth ability.Results Western blotting showed that HA-BPOZ was efficiently expressed in cells.Moreover, the growth ability and proliferation of cells were significantly inhibited in BPOZ overexpressed cells compared with the control cells (both P <0.05).Conclusionp CMV-HA-BPOZ plasmid is constructed.BPOZ can restrain breast cancer cell lines MCF7 and ZR-75-1 cells from proliferating and growing.The results of our study can con-tribute to the study of functions of BPOZ in breast cancer.

Objective To analyze the related factors with prognosis in patients with serous ovarian adenocarcinoma and to set up a prognostic model of serous ovarian adenocarcinoma.Methods The clinical, pathological and follow-up data of 104 cases with serous ovarian adenocarcinoma were retrospectively analyzed.Kaplan-meier univariate analysis was used to screen the prognostic factors;COX univariate and multivariate analyses were used to determine the risk coefficient of each factors and different layers in each factor.Pearson rank correlation was used to reject the influence of different factors with each other.And the prognostic model of serous ovarian adenocarcinoma was set up based on the result of the above study,which could be used to deduce the survival probability of patients with serous ovarian adenocarcinoma.Results International Federation of Gynecology and Obstetrics(FIGO)stage(P=0.0029),histological grade(P= 0.0054),residual disease(P=0.0000),metastasis of lymph nodes(P=0.0000)and chemotherapy(P= 0.0000)were the related factors of prognosis in patients with serous ovarian adenocareinoma,of which FIGO stage was the most important one,followed sequentially by histological grade,metastasis of lymph node, residual disease and chemotherapy(the independent risk coefficient of each factor was 1.3392,0.9206, 0.7071,0.6004,0.4985 in sequence).We set up a prognosis model according to the prognostic index of each factors.The effect of chemotherapy and residual disease on prognosis could be quantified by this model, and the higher the score,the lower the survival probability of patients.Condusions FIGO stage, histological grade,residual disease,metastasis of lymph nodes and chemotherapy are important prognostic factors of serous ovarian adenoearcinoma.This model can be used to estimate the prognosis of patients with serous ovarian adenoearcinoma,and the effect of both chemotherapy and residual disease on the prognosis could be quantified by the model.

OBJECTIVETo analyze the relationship of K-ras mutation with the development of liver metastasis in colorectal cancer patients and the survival outcomes.

METHODSFrom 2003 to 2008, 300 patients who underwent colorectal cancer surgery in the Department of General Surgery of Zhongshan Hospital, Fudan University were assigned to different groups, according to the diagnosis and follow-up results. The mutation of exon 2 of K-ras was detected in primary paraffin-embedded lesions by PCR and Pyrosequencing. The association of gene mutation with the development of liver metastasis and its prognosis was studied.

RESULTSAmong 300 cases, the mutations of exon 2 were present in 120 cases(40%). The G13D mutation was more common in metachronous metastasis group than that in synchronous group(17.0% vs. 8.0%, P=0.041). Multivariable regression analysis showed that G13D mutation was an independent risk factor(HR=1.108, 95%CI:1.032-5.062, P=0.048) for metachronous metastasis. Patients with mutated K-ras had a poorer overall survival compared to those without mutated K-ras for patients without liver metastasis(median overall, 65 vs. 72 months, P=0.039), and for patients who received metastasis resection(median disease-free survival 18 vs. 24 months, P=0.048). Multivariable analysis showed that K-ras mutation was an independent risk factors of overall survival(HR=1.561, 95%CI:1.022-6.422, P=0.045) in patients without liver metastasis.

CONCLUSIONDetection of K-ras mutation may predict the development of liver metastasis and prognosis.

Aged ; Colorectal Neoplasms ; genetics ; pathology ; Female ; Genes, ras ; genetics ; Humans ; Liver Neoplasms ; genetics ; secondary ; Male ; Mutation ; Prognosis

OBJECTIVETo study the distribution of mutations of UDP-glucuronosyltransferase 1A1 (UGT1A1) gene and its relationship with hyperbilirubinemia among neonates with hyperbilirubinemia of Guangxi Heiyi Zhuang nationality.

METHODSTotal genomic DNA was extracted from the blood of 100 neonates with hyperbilirubinemia (case group) and 100 neonates without hyperbilirubinemia (control group), all of whom were selected from Guangxi Heiyi Zhuang population. TATA box and all exons of UGT1A1 gene were amplified by PCR and directly sequenced.

RESULTS(TA)7 insertion mutation in TATA box, G71R missense mutation in exon 1, and 4 single nucleotide polymorphisms (SNPs) (rs199539868, rs114982090, rs1042640 and rs8330) in exon 5 were observed. The allele frequency of G71R mutation in the case group was significantly higher than that in the control group (P<0.01). There were no significant differences in the genotype distribution and allele frequency of TATA box mutation and SNPs (rs1042640 and rs8330) between the two groups (P>0.05). The logistic regression analysis showed that the odds ratios (95% confidence intervals) of UGT1A1 TATA box mutation, G71R mutation, and SNPs (rs1042640 and rs8330) associated with the development of neonatal hyperbilirubinemia were 0.846 (0.440, 1.629), 3.932 (1.745, 8.858), 0.899 (0.364, 2.222), respectively.

CONCLUSIONS(TA)7 insertion mutation and G71R missense mutation of UGT1A1 gene are common mutation types in neonates with hyperbilirubinemia of Guangxi Heiyi Zhuang nationality. Four SNPs (rs199539868, rs114982090, rs1042640, and rs8330) was first reported in China. UGT1A1 G71R missense mutation is a risk factor for hyperbilirubinemia in neonates of Guangxi Heiyi Zhuang nationality.

China ; ethnology ; Glucuronosyltransferase ; genetics ; Humans ; Hyperbilirubinemia, Neonatal ; genetics ; Infant, Newborn ; Logistic Models ; Mutation ; Polymorphism, Single Nucleotide ; TATA Box

BACKGROUNDGastric cancer (GC) is the second leading cause of cancer mortality worldwide, and surgical resection is currently the only possible curative approach. Duodenal stump leakage is the most serious complication after radical gastrectomy, and optimal treatment is still lacking.

METHODSWe retrospectively reviewed 2034 cases of total or subtotal gastrectomy for GC from January 1995 to December 2009, including 465 cases of duodenal stump closure using purse-string suture (group A), 835 cases of duodenal stump treated with linear cutting stapler and seromuscular layer suture (group B), and 734 cases of duodenal stump closure using full-thickness and seromuscular layer suture (group C). We evaluated the surgical cost, operative time for duodenal stump closure, short-term postoperative complications, perioperative blood loss, and postoperative recovery.

RESULTSThere was no perioperative mortality in any group. Ninety-four postoperative (within 1 month) complications occurred: 18 abdominal bleeding, 14 anastomotic leakage, 15 abdominal infection, 36 wound infection, and 11 duodenal stump leakage. There was no significant difference among the groups in intra-abdominal hemorrhage, anastomotic leakage, abdominal infection and wound infection. No postoperative duodenal stump leakage occurred in group A, which had a significant difference compared with groups B and C (6 cases in group B and 5 cases in group C suffered duodenal stump leakage. P < 0.01). The surgical cost in groups A and C was significantly lower than in group B (P < 0.01), with no significant difference between groups A and C. The processing time for duodenal stump closure in groups A and B was significantly shorter than in group C (P < 0.01), with no significant difference between groups A and B. There was no significant difference in blood loss and postoperative recovery among the groups.

CONCLUSIONSDuodenal stump closure using purse-string suture seems to be a promising approach with shorter operative time, and lower cost and incidence of duodenal stump leakage in radical gastrectomy.

Aged ; Female ; Gastrectomy ; adverse effects ; methods ; Gastric Stump ; surgery ; Humans ; Male ; Middle Aged ; Postoperative Complications ; surgery ; Retrospective Studies ; Sutures