Objective To investigate the expression of 5-lipoxygenase activating protein gene (ALOX5AP) polymorphism in the patients with cerebral infarction,and explore its relationship with cerebral infarction susceptibility.Methods Patients with cerebral infarction and healthy volunteers were selected for this study,whose venous blood was extracted and detected with polymerase chain reaction/restriction fragment length polymorphism (PCR-RFLP).Haplotype A (SG13S114T,SG13S89G,SG13S32A,SG13S25G),haplotype B (SG13S377A,SG13S114A,SG13S41A,SG13S35G),and their nucleotide polymorphism loci were observed.Results Single nucleotide polymorphism (SNP)-SG13S114,SNP-SG13S32 and HapA carrying rate were significantly different between patients with cerebral infarction and healthy volunteers (P ＜0.05).SNP-SG13S114 and SNP-SG13S32 were independent risk factors of cerebral infarction (OR ＞ 1.0,P ＜ 0.05).Conclusions The morbidity of cerebral infarction in Wenling City was influenced by SNP-SG13S114,SNP-SG13S32,and HapA carrying rate.

Objective: To evaluate the effect of core∶dentin thickness ratio on the flexure strength, fracture mode and origin of bilayered IPS Empress Ⅱceramic composite specimens. Methods: IPS EmpressⅡ core ceramic, dentin porcelain and bilayered composite specimens with core∶dentin thickness ratio of 2∶1 and 1∶1 were tested in three-point flexure strength. Mean strengths and standard deviations were determined. The optical microscopy was employed for identification of the fracture mode and origin. Results: The flexure strength of dentin porcelain was the smallest (62.7 MPa), and the strength of bilayered composite specimens was smaller than single-layered core ceramic(190.2 MPa). The core∶dentin ratio did not influence the strength of bilayered composite specimens. The frequency of occurrence of bilayered specimen delaminations was higher in the group of core∶dentin thickness ratio of 1∶1 than in the group of 2∶1. Conclusion: IPS Empress Ⅱcore ceramic was significantly stronger than veneering dentin porcelain. Core∶dentin thickness ratio could significantly influence the fracture mode and origin, and bilayered IPS Empress Ⅱceramic composite specimens showed little influence in the fracture strength.

Objective To explore the change of glyoxalase I in type 2 diabetic ocular muscles palsy (DOMP) and its associations with advanced oxidation protein products (AOPP) and oxidative stress. Methods 58 DOMP patients, 50 T2DM and 30 normal controls were enrolled in this study. Levels of blood lipids, fasting blood glucose, hemoglobin A1c, insulin, serum glyoxalase I, AOPP, malondialdehyde (MDA), superoxide dismutase (SOD) and total antioxidant capacity (T-AOC) were measured. Homeostasis model assessment was performed to evaluate the status of insulin resistance (IR). Results Levels of high-density lipoprotein cholesterol, SOD and T-AOC were positively correlated with glyoxalase I and inversely associated to AOPP. Levels of triglycerides , low-density lipoprotein cholesterol , fasting blood glucose , hemoglobin A1c , IR and MDA were negatively correlated with glyoxalase I and positively related to AOPP. AOPP had an inverse association with glyoxalase I (r = -0.823, P < 0.001). Multivariate regression analysis showed that serum levels of glyoxalase I (Sβ = 0.554) and AOPP (Sβ= -0.469) were influencing factors of groups. Conclusion Serum glyoxalase I levels were significantly decreased in DOMP and correlated with AOPP and levels of oxidative stress , which suggest that glyoxalase I could play crucial roles on the development of DOMP.

OBJECTIVETo study the imaging findings outcome of the percutaneous laser disc decompression (PLDD) and evaluate the middle-term safety and efficacy of PLDD.

METHODSThe imaging data of 22 cases suffered cervical spondylosis or lumbar spondylosis and treated by PLDD more than 3 years were retrospectively reviewed. To observe the intervertebral space of the invasive disc and the intervertebral disc hernia before and after the operation on the lateral projection of X-ray and the axial view of the MRI. To make a statistical analysis of the data.

RESULTSThere was no obvious change of disc height involving the anterior disc height, the intermediate disc height and the posterior disc height after the PLDD at the final follow-up (P > 0.05). At last time follow-up, the Sagittal Index (SI) are 0.10 - 0.54 and 0.06 - 0.39 before and after the PLDD in the treatment of cervical vertebra. The statistical difference were significant (P < 0.05). In lumbar vertebra, the SI is 0 - 0.71 and 0 - 0.48 disc before and after the PLDD. The statistical difference were very significant (P < 0.01).

CONCLUSIONSThe PLDD will not destroy the intervertebral space of the cervical and lumbar vertebra obviously; moreover, it can effectively reduce the disk hernia. The PLDD is a safe and effective Mini-invasive surgery for cervical vertebra and lumbar vertebra diseases.

Adult ; Aged ; Decompression, Surgical ; methods ; Diskectomy, Percutaneous ; methods ; Female ; Follow-Up Studies ; Humans ; Intervertebral Disc Displacement ; diagnostic imaging ; surgery ; Laser Therapy ; Male ; Middle Aged ; Radiography ; Retrospective Studies ; Treatment Outcome

OBJECTIVETo reveal the relationship between the storage time of the bark of Magnolia officinalis and the content of phenols in it, and lay a theoretical foundation for the harvest, processing, management and storage.

METHODThe contents of magnolol and honokoiol in 15 bark samples, collected from the main producing areas in China, were determined in the time of freshly harvest and 3 and 10 years after respectively by HPLC method.

RESULTIt showed that within a certain period of time, bark storage was favorable to conversion and accumulation of phenols, that the content of magnolol tended to increase from year 0 to year 3, then followed by slight decrease with years on account of volatilization of phenols, but was still higher when the bark was stored for 10 years than that that when the bark was freshly harvested, and the content of honokoiol still tended to increase when the bark had been stored for 10 years.

CONCLUSIONThe phenols in bark of M. officinalis is quite stable and the bark can be stored for 10 years or longer.

Biphenyl Compounds ; analysis ; Drug Storage ; methods ; Drugs, Chinese Herbal ; chemistry ; Lignans ; analysis ; Magnolia ; chemistry ; Plant Bark ; chemistry ; Time Factors

OBJECTIVETo analyze the effects of core material and design on the fracture mechanism of veneered all-ceramic crowns.

METHODSThe fracture process of 6 veneered alumina or zirconia crowns with different core design (well-distributed core, not well distributed core, and core with cervical ring) under load was analyzed by RFPA'2D finite element analysis software.

RESULTSAll the six tested crowns fractured due to tension failure, and the crack started at the porcelain in the cusp and spread along the interface between core and porcelain. Under the conditions of this test, the break was only related to the porcelain and not the core, and the crack of porcelain took place earlier in zirconia crowns than in alumina crowns. Minimum stress distribution in cervical ring core design crown and maximum stress distribution in not well distributed core design crown could be seen at the neck area.

CONCLUSIONSZirconia crowns presented greater stress at the interface between core and porcelain than alumina crowns. The not well distributed core design did not increase the rise of break. The neck area was the weak area with tensile stress concentration in the cervical ring core design.

Dental Prosthesis Design ; Dental Restoration Failure ; Dental Stress Analysis ; Finite Element Analysis ; Materials Testing ; Metal Ceramic Alloys

To examine the phylogenetic information regarding the gene pool of AIV in domestic ducks in eastern China, the NA genes of twenty-six viruses isolated during 2002-2006, including two H1N1 strains, tenH3N1 strains and fourteen HSN1 strains, which reflected the predominant N1 subtype viruses were subjected to phylogenetic analysis. The results indicated that AIVs of N1 subtype circulating in domestic ducks in eastern China were undergoing a gradual evolution. Analysis of the deduced amino acid sequences revealed that NAs from all isolated H5N1 viruses had a 20-aa deletion in the stalk region (residues 49-68), whereas no deletion was seen in the NAs from other HA subtype viruses. The viruses of H3N1 and H1N1 might have a propensity for reassortment of NA genes, whereas no direct evidence of reassortment of NA gene was obtained in H5N1 viruses.
Animals ; Birds ; China ; DNA, Viral ; analysis ; Evolution, Molecular ; Humans ; Influenza A Virus, H1N1 Subtype ; classification ; genetics ; Influenza A Virus, H3N2 Subtype ; classification ; genetics ; Influenza A Virus, H5N1 Subtype ; classification ; enzymology ; genetics ; Influenza A virus ; classification ; enzymology ; genetics ; Influenza in Birds ; virology ; Influenza, Human ; virology ; Neuraminidase ; genetics ; Phylogeny ; Poultry Diseases ; virology ; Sequence Alignment ; Sequence Deletion

The previous study indicated that aquaporin 4 (AQP4) deficiency attenuated opioid physical dependence. However, the underlying mechanism remains unknown. In the present study, the effects of AQP4 deficiency on the expression of three factors, protein kinase C (PKC) α, PKCγ and c-Fos in the spinal cord, which are known to be concerned with spinal neuronal sensitization and opiate dependence, were investigated in AQP4 knockout mice using Western blotting analysis. It was observed that AQP4 deficiency reduced the score of naloxone-precipitated abstinent jumping after repeated morphine administration compared with wild-type (P < 0.001). Meanwhile, the protein levels of PKCα and c-Fos in the spinal cord of AQP4 knockout mice were significantly higher than those in the wild-type mice; while the expression of PKCγ was decreased remarkably by AQP4 knockout during the withdrawal (P < 0.01). These data suggest that AQP4 deficiency-attenuated morphine withdrawal responses may be partially attributed to the changes in the spinal expression of PKCα, PKCγ or c-Fos.
Analgesics, Opioid ; pharmacology ; Animals ; Aquaporin 4 ; deficiency ; genetics ; Mice ; Mice, Knockout ; Morphine ; pharmacology ; Naloxone ; pharmacology ; Protein Kinase C ; metabolism ; Protein Kinase C-alpha ; metabolism ; Spinal Cord ; metabolism ; Substance Withdrawal Syndrome ; metabolism

Objetive: To investigate whether apoptosis of SGC7901 cells can be induced by the expression of the recombinant gene of anti-HER2 ScFv/tBid. Methods: The recombinant anti-HER2 ScFv/tBid gene was cloned into vector pCMV and the recombinant plasmid was transfected into SGC7901 cells. The gene expression was detected by RT-PCR and immunofluorescent staining. Cell counting was carried out to show the effect of the gene transfection on cell growth. At the same time, significant apoptotic peak was detected by flow cytometry in recombinant anti-HER2 ScFv/tBid gene transfected cells. Results: The fusion protein of anti-HER2 ScFv/tBid was observed in the cytoplasm of transfected SGC7901 cells. The transfected cells displayed typical cell growth inhibition and apoptosis. Conclusion: Fusion protein of anti-HER2 ScFv/tBid can induce apoptosis of SGC7901.

Objective To evaluate the elastic score (ES) and strain ratio (SR) in papillary thyroid carcinoma patients, and analyse their relationship with serologic index. Methods Totally one hundred and six patients with thyroid neoplasm were divided into papillary thyroid carcinoma group (n=56) and thyroid adenoma group ( n=50) according to histopathology results. Another fifty cases of healthy people were chosen as normal control group at the same period. The ES and SR were evacuated by color Doppler ultrasonic diagnostic apparatus in three groups of patients. Thyroid stimulating hormone (TSH), thyroglobulin antibody (TgAb), and thyroid peroxidase antibody (TpoAb) were detected by electrochemiluminescence immunoassay. Data of galectin-3 (Gal-3), vascular endothelial growth factor (VEGF), and cytokeratin 19 fragment (Cyfra21.1) were tested by automatic optical inspection. Results Indexes of ES, SR, Gal-3, VEGF and Cyfra21.1 showed statistically increasing tendency in the control group, thyroid adenoma group and papillary thyroid carcinoma group sequentially (P<0.05). Serum levels of TSH, TgAb and TpoAb were significantly higher in the papillary thyroid carcinoma group than those in the other two groups (P<0.05). And there were no significant differences in serum TSH, TgAb and TpoAb between the control group and thyroid adenoma group (P>0.05). There were positive correlation between ES, SR and TSH, TgAb, TpoAb, Gal-3, VEGF, Cyfra21.1 in patients with papillary thyroid carcinoma (P<0.05). Conclusion Papillary thyroid carcinoma shows increased ES and SR detected by ultrasound, and which are relevant to related serological indicators. The two indices may be used for auxiliary diagnosis of papillary thyroid carcinoma.