Objective:To investigate the relationship of TNF-A-863 and CGRP979 gene polymorphisms with the susceptibility to severe chronic periodontitis in Chinese.Methods:Buccal swabs were collected from 100 adult patients with severe chronic periodontitis and 118 healthy adult controls.DNA was extracted from each subjects of the two groups.PCR-LDR technique was used to identify the genotypes of TNF-A-863 and CGRP979.The difference in the genotypes between the two groups was analyzed by statistics software.Results:The genotype of TNF-A-863 was mainly TNF-A-863 A/C in patients with severe chronic periodontitis and TNF-A-863 C/C in healthy controls.There were significant differences in TNF-A-863 distribution between the two groups(P

Forty-two hyperthyroid patients with mild hepatic dysfunction were treated with 131I once orally and followed up for 6 months. The changes of hepatic functions (ALT, AST, ALP, A/G) were determined before and after treatment, hepatic function was ameliorated in these patients. The results indicate that 131I-iodine is safe and effective in treating hyperthyroidism with mild hepatic dysfunction.

Objective To compare the predictive power of model for end-stage liver disease(MELD) and Child-Turcotte-Pugh(CTP) on the cirrhotic patients who underwent transjugular intrahepatic portosystemic shunt(TIPS).Methods A total of 110 patients(98 males and 12 females) undergoing TIPS from January 2004 to March 2008 in our hospital were analyzed.Data of all patients were analyzed retrospectively.The main statistical tests included: Kaplan-Merier analysis to compare survival respectively,and the area of receiver operating characteristics(ROC) to compare the performance of the 2 models for predicting 3-month,1-year,and 2-year mortality.Results The survival rate rate of the patients whose MELD score under 15 showed significantly higher than the patients above MELD score 15.The area of ROC that predicting survival was 0.866 and 0.863 at 3 months,0.755 and 0.739 at 1-year,0.729 and 0.750 at 2-years respectively for the MELD and the CTP score.Conclusion Both MELD and CTP score can predict short-term survival accuracy,but poor in long-term.However,the MELD has overcome the shortcomings of CTP,and may be worth using in clinical.

Objectives To investigate the expression of hTERT, p16 and Topo-Ⅱ? in astrocytoma as well as their relationship during histogenesis and development of astrocytoma. Methods The expression of hTERT, p16 and Topo-Ⅱa in 64 astrocytoma specimens with different malignant grades and 10 normal brain tissues were studied using tissue microarray and immunohistochemistory. Results The expression rate of hTERT and Topo-Ⅱa were 50 % and 59.4 % respectively, they increased along with the increase of the malignant grade(P

12E7 Antigen ; Antigens, CD ; metabolism ; Cell Adhesion Molecules ; metabolism ; Diagnosis, Differential ; Humans ; Kidney Neoplasms ; metabolism ; pathology ; surgery ; Male ; Middle Aged ; Nephrectomy ; Osteosarcoma ; metabolism ; pathology ; surgery ; Vimentin ; metabolism

Endometrial Neoplasms ; drug therapy ; pathology ; Female ; Humans ; Precancerous Conditions ; drug therapy ; pathology ; Progestins ; therapeutic use

Purpose To ana1yze the expression features of 5-F1uorouraci1(5-FU)metabo1ic enzyme thymidy1ate synthetase(TS),thy-midine phosphory1ase( TP),dihydropyrimidine dehydrogenase( DPD)and its re1ationship with c1inicopatho1ogica1 factors and progno-sis in co1orecta1 cancer,in order to further exp1ore its potentia1 significance in guiding co1orecta1 cancer chemotherapy. Methods Es-tab1ishment of a tissue microarray containing 72 patients with co1orecta1 cancer,and 56 norma1 tissue( dista1 cut edge tissue near carci-noma)was used to detect TS,TP,and DPD by immunohistochemistry,and to ana1yze its re1ationship with c1inicopatho1ogica1 factors and prognosis of co1orecta1 cancer through statistica1 method. Results The expression of TS in co1orecta1 cancer was 1ower than that in norma1 tissue(P=0. 876),which was associated with TNM(P=0. 043)and positive1y corre1ated with patients’overa11 surviva1(P=0. 027),the expression of TP in co1orecta1 cancer was higher than that in norma1 tissue(P=0. 315)that was associated with 1ymph node metastasis(P=0. 009)and negative1y corre1ated with the prognosis of patients(P=0. 040),DPD expression in co1orecta1 canc-er was higher than that in norma1 tissue(P=0. 071),which was re1ated to the histo1ogic type(P=0. 029). Overa11 surviva1 was sig-nificant1y shortened in co1orecta1 cancer with DPD high expression( P=0. 011). Conclusions TS,TP and DPD might be app1ied as important index of prognosis in co1orecta1 cancer patients using 5-FU adjuvant chemotherapy. The expression of TS re1ated c1ose1y with the c1inica1 stage is a bio1ogica1 marker of tumor progression. TP expression is c1ose1y re1ated to 1ymph nodes metastasis and recur-rence,which is an important factor of postoperative recurrence and metastasis.

Objective To investigate the bilateral flow-mediated dilation of brachial artery (BA-FMD) and nitroglycerin mediated dilation (BA-NMD) in patients with cerebral infarct, and to find out if the vasodilation of internal catotid artery after sublingual administration of nitroglycerin can be detected as a more direct way to reflect the vasodilation in patients with cerebral vascular diseases. Methods High resolution ultrasonic system was used to measure 13 patients with acute cerebral infarction. The diameter of brachial artery, internal carotid artery and common carotid artery was measured at relaxation, reactive congestion in the brachial artery and after sublingual administration of nitroglycerin. Meanwhile, the intima media thickness (IMT) and plaques of carotid artery was detected. Results Paralysis did not lead to differences in vasodilation of brachial artery (r=0.52, P=0.07). There was a correlation between ICA-NMD and BA-NMD (r=0.83, P=0.01). Conclusion There were no significant differences between brachial vasodilation in paretic and non-paretic limbs of patients with acute cerebral infarction. Ultrasonic measurement of ICA-NMD can be a more direct measure of the vasodilation of patients with cerebral infarction.

This study examined the analgesic effect of diprospan in rats with trigeminal neuralgia. Rat model of trigeminal neuralgic pain was established by loosely ligating the left infraorbital branch of the trigeminal nerve. After allodynia developed, the rats were randomly divided into 2 groups (n=20 in each): diprospan group, in which the rats received diprospan (7 mg/mL, 0.1 mL) injected to the left infraorbital foramen area; control group, in which saline (0.1 mL) was administered as the same manner as the diprospan group. The pain threshold (PT) in the left infraorbital area was measured before and 2, 6, and 8 weeks after the administration. The expression of neuropeptides [substance P, preprotachykinin A (PPTA), calcitonin gene-related peptide (CGRP)] in the trigeminal nerve was detected at the same time points as the PT measurement by immunohistochemistry or in situ hybridization method. The results showed that in the diprospan group, the PT was 10.65±1.26, 10.77±1.19 and 14.13±1.34 g 2, 6, and 8 weeks after the administration respectively, significantly higher than that before the administration (PT value: 0.36±0.11) (P<0.05 for each). In the saline group, the PT was 0.37±0.13, 0.66±0.09, 4.45±1.29 and 13.72±1.72 g before and 2, 6, and 8 weeks after the administration respectively with differences being significant between before and 6, 8 weeks after the administration (P<0.01). No significant difference existed in the PT between the diprospan group and the saline group at pre-administration (P>0.05). The PT in the diprospan group was significantly greater than that in the saline group 2 and 6 weeks post-administration (P<0.05). In the diprospan group, the expression levels of neuropeptides were significantly reduced as compared with those in the saline group 2 and 6 weeks post-administration (P<0.05). It was concluded that diprospan has an obvious analgesic effect on the trigeminal neuropathic pain partly by reducing the expression of neuropeptides in the trigeminal ganglia.

Objective:To construct of 3-dimensional finite element models of mandibular first molar with structure defect restoration.Methods:Reverse engineering technology was used. Geometric models were built by the use of advanced 3-dimensional laser scanning and computer assisted 3-dimensional design technique. The geometric data were introduced into the finite element software for establishing the finite element mesh after being processed.Results:The 3-dimensional finite element models of the minimum distal occlusal structure defect with restoration were created, which included metal crown with exterior anatomic morphology of the mandibular first molar, tooth preparation, filling material and the structure of periodontal membrane.Conclusion: The method may be a useful approach for building models of teeth and relative tissues.