Overexpression of DNA methyltransferases(DNMTs)is observed in many tumors. Overexpressed DNMTs silence tumor suppressor genes by catalyzing the methylation of CpG islands within the promoter regions, and therefore promote the neoplastic transformation of normal cells. Highly elevated DNMT activities have been observed in cancers including gastrointestinal cancers, breast cancer, and lung cancer and have been associated with cancer development and prognosis. Drugs and targeted therapies that inhibit DNMT activities can reactivate methylated tumor suppressor genes, promote apoptosis, and thus inhibit tumor growth.

Objective To discuss the protective effect of Tongsaimai pellets(TSMP) and butylphthalide(NBP) on PC12 cell in the hypoxia/hypoglycemia model.Methods Two ischemia models including hypoxia,hypoglycemia models were used to assay the anti-ischemic roles of TSMP and NBP in cultured PC12.Results TSMP and NBP possessed obvious protective effects on PC12 cells from two injured models.Both of them could increase the number of living cells and decrease LDH activity significantly,particularly in hypoglycemia injured model.Conclusion TSM and NBP have protective effect on PC12 cells from two injured models effectively in vitro.

Objective To analyse the personality characteristics of medical undergraduate and graduate newcomers. Methods Cattell 16 Personality Factor Questionnaires (16PF) were employed to assess the personality of 675 undergraduate newcomers (306 males and 369 females) and 155 graduate newcomers (76 males and 79 females),and the results were compared with the established findings of the country. Results Compared with male undergraduate newcomers,the scores of rule-consciousness,self-reliance and environmental adaptation of male graduate newcomers were higher,while those of sensitivity,openness to change,tension,cowardice and bravery were lower (P

BACKGROUND: A good many researches believe that the gene polymorphism of vascular endothelia nitric oxide synthase(eNOS) correlate with diseases of heart, brain and kidney. However, it is still not clear whether eNOS Glu298Asp correlates with myocardial infarction in the elderly Chinese.OBJECTIVE: To investigate the distribution of Glu298Asp polymorphism of vascular eNOS in the elderly as well as correlation between Glu298Asp polymorphism of eNOS and myocardial infarction in the elderly Chinese.DESIGN: A case-controled study based on diagnosis.SETTING, PARTICIPANTS and METHODS: A total of 37 patients with myocardial infarction were selected into case group, which all of them were patients from either outpatient department or inpatient department of the First Affiliated Hospital of Nanjing Medical University. Thereinto, 20 cases without hypertensive history were allocated into case subgroup. Totally 172 subjects selected from the re-testees of physical checkup of our hospital were assigned into control group, of which 92 cases without hypertensive history were allocated into control subgroup. Indices like height, body mass and fasting blood sugar were detected respectively in all participants of all groups. The polymorphism of Glu298Asp of eNOS gene was assayed by polymerase chain reaction(PCR), and restriction fragment length polymorphism (RELP).MAIN OUTCOME MEASURES: The polymorphism of Glu298Asp of eNOS gene as well as the allelic frequency of 298Asp in the elderly of four groups.RESULTS: Genotype of Glu/Asp of the case group was higher than that of the control group(32.43% and 18.02% respectively) . The genotype composition of Glu298Asp polymorphism had significant difference between the case group and the control group(x2 = 3.87, P < 0. 05) . Between normotensive subgroups, Genotype Glu/Asp of the case subgroup was higher than that of the control subgroup(35.00% and 10. 87% respectively) . The genotype composition of Glu298Asp polymorphism of the eNOS gene also had significant difference between the case subgroup and the control subgroup (x2 = 7.43, P < 0.01) . The allelic frequency of 298Asp of the case group was higher than that of the control group without statistical significance (16. 22% and 9.01% respectively, P > 0. 05) . Between normotensive subgroups, the allelic frequency of 298Asp of the case subgroup was significantly higher than that of the control subgroup(17.50% and 5.43% respectively, x2 = 6.82, P < 0.01 ) ).CONCLUSION: Glu298.Asp polymorphism of the eNOS gene exists in the elderly Chinese. The genotype of Glu/Asp and allelic frequency of 298Asp might be a genetic susceptible marker of myocardial infarction in the elderly Chinese.

Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Silicosis ; diagnostic imaging ; Tomography, Spiral Computed

Objective To explore the association of Glu298Asp polymorphism of the endothelial nitric oxide synthase gene (eNOS) with myocardial infarction in Chinese aged people based on a case-control study. Methods Thirty-seven patients with myocardial infarction and 172 sex- and age-matched healthy control subjects were enrolled. Their height, weight and blood pressure were measured and the fasting plasma lipid concentrations were examined. Glu298Asp polymorphisms of the eNOS gene were examined using PCR and RFLP methods. Results Genotype Glu/Asp in the patient group was higher than that in the control group (32.4% vs 18.0%). The genotype composition of Glu298Asp polymorphism showed significant difference between the patient group and the control group ( =3.87, P 0.05). Among the normotensive subgroup, the allelic frequencies of 298Asp in the patient subgroup was higher than that in the control subgroup (17.5% vs 5.4%). The allelic frequencies of 298Asp had significant difference between the patient subgroup and the control subgroup ( =6.82, P

Objective To investigate the security and effect of endovascular stents placement in treating atherosclerotic stenosis of the iliac arteries.Methods 15 cases with iliac arterial stenosis caused by atherosclerosis were treated by a big amount of thrombolysis in combination with iliac arterial stent placement.The length of lesions was from 4.3 cm to 9.5 cm(mean of 6.7 cm),the claudicant distance was from 100 m to 300 m(mean of 185 m).Clinical follow-up included CT angiography,color Doppler sonography and clinical evaluation with the ankle-brachial index(ABI).Results Eighteen stents were placed in 18 limbs of 15 patients.The technical successful rate was 100%.The clinical symptoms(claudication or the rest pain)were improved,and ABI increased from 0.25?0.18 to 0.85?0.15 after stent implantation in all cases.All the patients were followed up for 3~47 months,one patient was death during the follow-up periods because of brain stem ischemic stroke.All patients maintained uninterrupted stent patency until the final follow-up.Conclusion Iliac arterial stent placement is a safe treatment with favorable long term patency for treating arterial stenosis caused by atherosclerosis.

Pine pollen is a kind of Chinese materia medica with the homology of medicine and food, rich in a variety of nutrients and bioactive ingredients. It has the efficacy of hemostasis by convergence and eliminating dampness and astringing sores. Research showed that pine pollen is able to protect certain organs, regulate metabolism, enhance immunity and resist antioxidation and aging. This article reviewed pine pollen related research from the aspects of main components, pharmacological effects and clinical application, in order to provide references for further study and development and utilization.

Objective To investigate precipitants of epileptic seizure, and to explore the correlation between various precipitants and relationship between precipitants and clinical features of epilepsy.Methods Data were collected from 154 patients attending a tertiary-care epilepsy clinic of Nanjing Brain Hospital between April 2015 and April 2016.The patients with epilepsy were older than 16 years, had a clinical history of one year or more, and one seizure at least a year and one seizure at least in the latest three months.An enclosed questionnaire was combined with open interview to identify and characterize seizure precipitants and clinical characteristics of patients.Patients were asked respectively whether there were some precipitants three months before and during last three months.Correlation between seizure precipitants and relationship between precipitants and clinical characteristics, such as age, gender, course, seizure frequency and so on, were calculated.Results A total of 125 (81.2%) participants reported at least one precipitant.Common precipitants (in descending order) were as follows: emotional stress (56.0%), sleep disorder (38.4%), fatigue (27.2%), missed medication (20.0%).There were one to six different precipitants for one patient, and 60.8% of patients had two or more precipitants.There was a correlation between emotional stress and sleep disorders as well as fatigue (χ2=4.665, 8.668;P<0.05).Patients with idiopathic epilepsy were more sensitive to sleep disorders.There was no relationship between total precipitants and clinical features such as age, gender, age of onset, duration, type of seizure, seizure frequency, number of drug taking and so on.Conclusions Seizure precipitants were found widespread.The most common precipitants were found to be emotional stress, sleep disorders, fatigue and missed medication.There existed a correlation between emotional stress and sleep disorders as well as fatigue.There was no connection between total precipitants and patient′s demographic characteristics as well as clinical features.However, the type of seizure precipitants was different in patients with different demographic and clinical characteristics.

[Abstract ] Objective Bioinformatics provides a lot of valuable information for online prediction of new genes.In this study, we predicted the biological function of ubiquitin-conjugating enzyme 2S ( UBE2S) based on bioinformatics. Methods The UBE2S gene was screened and cloned from the cDNA library of human HepG2 cells.The relationship of the structure and function of UBE2S was explored based on the full-length cDNA library.MEGA5.05, CLUSTALW2 and SWISS-MODEL were used to study the phylogeny, conservation, and 3D structure of UBE2S. Results The UBE2S gene encoded a polypeptide of 241 residues with a predicted molec-ular weight of 23 770 and an isoelectric point of 8.81.The UBE2S protein contained no transmembrane locus and the probabilities of their functions of growth factors, cation channel and structural protein were 8.904, 0.313, and 0.291.The analysis of BLASTp showed that the isolated UBE2S had a 90-97%identity with the other species. Conclusion Analysis of the structure and function of the UBE2S protein can not only provide more information about its gene family but also pave the way for further experimental studies on the molecular mechanism of the consequent hepatocellular carcinoma.