Objective:To discuss the applied value of the ultrasonic light scattering imaging DOT technology in the diagnosis of early breast lumps. Methods: The data of 114 patients that were experted ultrasound imaging of light scattering and were with clear pathological diagnosis results were analyzed retrospectively in our department in three years. Diagnostic indicators (SDI), the mass of the total amount of hemoglobin (HBT), oxygen saturation (SO2), mass direction (Orien) form factor (Forml) and the posterior echo (Pecho) were recorded, and the diagnostic sensitivity, specificity, positive predictive value, negative predictive value, false negative rate and false positive rate were analyzed. The results were proceed and analyzed through SPSS 17.0. Results:There were significant differences in the SDI, HBT, Orien, Forml(t=-4.122,t=-2.275,t=-2.206,t=-2.927,P<0.05)The diagnostic sensitivity was 95.7%, specificity was 95.5%, positive predictive value was 93.8%, negative predictive value was 97.0%,false negative rate was 4.3%and false positive rate was 4.5%. Conclusion: Light scattering of ultrasound imaging use SDI, HBT, Orien, the Forml four quantitative indicators, qualitative evaluation can reach the masses, has a higher value in the differential diagnosis.

Objective To study the relationship between serum lactadherin (MFG-E8),sialic acid (SA) level and coronary heart disease (CHD) occurrence and development.Methods 166 patients in our hospital were selected from June 2014 to November 2015,and then according to the result of coronary angiography divide the subjects into control group (n=56,the result of coronary angiography completely normal) and CHD group,including stable angina 48 cases (StA subgroup),unstable angina 30 cases (UA subgroup) and acute myocardial infarction 32 cases (AMI subgroup).The serum level of MFG-E8 was detected by ELISA method,the serum level of SA,hs-CRP and lipid index were detected by biochemical analysis.Gensini score showed the severity of coronary stenosis.The correlation analysis between detecting parameters was carried out by Spearman method.Results Compared with the control group,the patients with CHD have a higher level of serum SA and a lower level of MFG-E8 (both P<0.05).The AMI subgroup has a lower level of serum MFG-E8 than StA and UA subgroups,and the AMI subgroup has a higher level of serum SA than StA and UA subgroups (all P<0.05).The correlation analysis showed that the serum SA has a positively correlation with the level of TG,hs-CRP,and Gensini score,and has a negatively correlated with the level of MFG-E8 (all P<0.05).The MFG-E8 has a negatively correlated with the level of TG,hs-CRP,and Gensini score (all P<0.05).Conclusion MFG-E8 and SA play an important role in the development of CHD,and combined detection of serum MFG-E8 and SA may be helpful in the clinical diagnosis and risk assessment of patients with CHD.

Objective To explore an alternative strategy of ganciclovir-mediated cytotoxicity and study the mechanism of enhancing bystander effect of HSV-TK/GCV system by combination gene transfer of Rb gene and HSV-TK gene.Methods Recombinant eukaryotic expression plasmid pcDNA3.1-Rb harbour ing1.65kb of Rb gene was constructed.The pcDNA3.1-Rb and the plasmids tgCMV/HyTK car-ry ing HSV-TK gene were transfected respectively or co-transfected into the osteosarcoma cell line OS732by lipofection using DOTAP reagent.The mRNA expression of Rb gene and HSV-TK gene were detected by RT-PCR and Northern blot.Cell counting,cell cycle analysis and soft agar colony formation test were adopted to observe cell growth features.The expression of gap junction Connexin43gene was performed by RT -PCR and Western blot.The direct confirmation of gap junction intercellular commu ni cation was demonstrated by Lucifer yellow dye transfer.Cell sensitivity to GCV and″bystander effect″of HSV-TK/GCV system were measured by MTT assay.Results The eukaryotic expression plasmid pcD NA3.1-Rb was constructed successfully.The transfected cell lines OS732TK,OS732Rb and OS732RbTK were har-vested.mRNA expression of HSV-TK gene was demonstrated in OS732TK and OS732RbTK cells.Both exogenous and endogenous Rb gene expression could be detected in OS732Rb and OS732RbTK cells si-multa neously.Compared with parental cell OS732,OS732Rb and OS732RbTK cells changed their mor -phology and decreased the growth rate;the ability of soft agar colony formation reduced and the cell cycles were arrested at G 0 G 1 checkpoint.The Connexin43expression and gap junction in tercellular communica-tion en hanced in OS732Rb cell.GCV was of toxicity to only TK -positive cells,OS732TK and OS732RbTK,in a concentration dependent manner,the mixed coculture experiments of OS732and OS732Rb with the TK-negative cell,both showed sensitive to GCV,but the survival rate of OS732Rb cell was significantly lower than OS732cell under the same condition.Conclusion Coordinate ex pression of Rb andHSV-TK gene conferred a more po tent bystander effect by enhancing gap junction intercellular communica-tion and in hibiting prolifera tion.

Objective To evaluate the potential role of the separately p73 gene polymorphism on hepatocellular carcinoma(HCC) susceptibility.Methods A hospital-based case-control study was conducted in 100 cases HCC patients and 100 cases age,sex-matched cancer-free controls in the same region.The matrix-assisted laser desorption ionization time-of-flight mass spectrometry and DNA sequencing methods were used to analyze polymorphisms of p73 genetic polymorphisms (G4C14-A4T14).Using χ2 test to exam the differences of genotype between the HCC group and control group,logistic regression was used to analysis odds ratio(Oddsratios,OR) and 95%CI(Confidence Intervals,CI),adjusted for age and sex,analysis the association between SNPs of P73 polymorphisms and HCC.All the results were analyzed by SPSS 18.0.Results (1)The differences of age(χ2=0.185,P=0.667),gender(χ2=0.026,P=0.873),drinking status(χ2=0.427,P=0.514),and family history (χ2=0.058,P=0.809)of cancer composition between HCC group and control group were not statistically significant.(2)There were CC,CT and TT three genotypes in p73 rs1801173 C/T.The frequencies of CC,CT and TT genotypes of P73 C/T in controls and HCC cases were 65.0%,28.2%,6.8 % and 62.2%,31.1%,6.7%,respectively,and there was no significant difference between the two groups(χ2=0.326,P=0.568).(3)When stratifying by age,gender,smoking status,alcohol consumption,HBV carrier status and family history of cancer we found that the variant genotypes of GC/AT + AT/AT in P73 was associated with a significantly increased risk of HCC among HbsAg-positive individuals(χ2=3.916,P=0.048) and female(χ2=6.545,P=0.01),and there were no significant correlation with age,smoking,alcohol consumption,family history of cancer.Conclusion (1)p73 G4C14-to-A4T14 dinucleotide polymorphism may play a role in the development of chronic HBV-infected HCC in the Chinese population.(2)p73 G4C14-to-A4T14 dinucleotide polymorphism may play a role in the development of chronic HCC in female of Chinese population.

Objective To explore the role of focus intervention mode in improving the self-efficacy and subjective well-being of newly-contracted nurses. Methods A total of 100 nurses selected as the survey subjects by means of convenient sampling method, were numbered consecutively and divided into observation group and control group by random digit number table. The observation group was intervened with conventional mental consultation and the observation group with the WeChat-based focus intervention mode, which included the use of past-oriented questions and answers for understanding their strength and sources, future-oriented presuppositions and miracle-oriented questions for their thinking of resolutions to future problems. The two groups were compared in terms of general self-efficacy and well-being by the general self-efficacy scale (GSES) and the overall well-being scale (GWB). Results Before intervention , the total scores on GSES and GWB of the observation groups were insignificantly higher than those of the control group (P > 0.05). After intervention, the scores of observation group were significantly higher than those in the control group (P < 0.01). Conclusion The We-Chat-based focus intervention mode can effectively improve the self-efficacy and subjective well-being of newly-contracted nurses.

Objective To analyze electrophysiology of peripheral nerve in uremic patients. Methods 24 uremic patients and 19 normalvolunteers were included, surface electrodes were used to observe the electrophysiology performance, including tibial nerve, peroneal nerve,sural nerve and skin sympathetic response. Results The motor conduction, sensory conduction and skin sympathetic response were significantlydifferent between uremia patients and normal volunteers (P<0.05). The electrophysiology performance showed that F wave latencyprolonged, nerve conduction slowed, distal latencies prolonged, sensory fibers damaged more serious than motor fibers. Conclusion Peripheralneuropathy is one of the most common complications in uremia patients, neural electrophysiological abnormalities are significantly earlierthan clinical symptoms, nerve electrophysiological examination is of great significance in diagnosis and evaluation uremic peripheralneuropathy.

Objective To observe the pathology in temporal lobe cortexes and hippocampus in protopathic intractable temporal lobe epileptics.Methods The cortexes of spike foci in temporal lobe and hippocampus were obtained from 9 cases with protopathic intractable temporal lobe epilepsy who accepted operation.The samples were observed under the transmission electron microscope.Results The ultrastructure changes in spike focus of temporal lobe cortexes are similar to those in hippocampus.It is common that neurons were pycnotic and decreased.Astrocytes were hydropic and degenerative.Gliosis were found in some cases.The number of synapses increased or decreased in different cases and positions.Blood-brain barriers were destroyed because foot processes of astrocytes around capillaries were edematous.Conclusion Neuronal loss,gliosis and synaptic reorganization which occur in epileptic hippocampus and maybe also in epileptic temporal lobe cortexes destroy the balance between excitatory and inhibitory neurotransmission.The abnormalities probably associate with protopathic intractable temporal lobe epileptic seizures.

Objective To study the CT perfusion features of various lymph nodes in the neck.Methods Dynamic perfusion CT scanning was performed in 83 neck lymph nodes proved by pathology,including tuberculosis lymph nodes, lymphoma and metastatic lymph nodes. The shapes, blood flow modes,and perfusion parameters of these lymph nodes were compared among 3 groups. Statistical analysis of L/T and CT perfusion parameters was performed by one-way ANOVA and LSD test. Results The values of MTT of tuberculosis lymph nodes, lymphoma and metastatic lymph nodes were (28. 13 ±5.08), (31.08 ±5.82),and ( 11.24 ±5.31 ) s,respectively. The MTT of metastatic lymph nodes was statistically lower than that of tuberculosis lymph nodes and lymphoma (P ＜ 0. 05). Their frequencies of marginal blood flow were 5/9,4/19, and 39/55 (70. 9% ), respectively. The frequency of marginal blood flow in the tuberculosis lymph nodes and metastatic lymph nodes was statistically higher than that of lymphoma ( P ＜ 0. 05 ). Their frequencies of central blood flow were 2/9, 11/19, and 9/55 (16.4%), respectively. The frequency of central blood flow in the lymphoma was statistically higher than that of tuberculosis lymph nodes and metastatic lymph nodes ( P ＜ 0. 05 ). Their values of L/T were 1.82 ± 0. 32, 1. 80 ± 0. 39, and 1.84 ± 0. 36,(40. 98 ±6. 62) s,respectively. There were no significant differences in L/T, BF, BV and TTP among tuberculosis lymph nodes, lymphoma and metastatic lymph nodes( P ＞ 0. 05 ). Conclusion CT perfusion,especially combination functional imaging with perfusion images may be helpful in judging the nature of neck lymph nodes.

Objective To investigate the characteristics of the cognitive impairment about attentional network among amphetamine-induced psychiatric disorders. Methods Amphetamine-induced psychiatric disorders ( n = 100) and normal controls ( n = 100) were assessed with Attentional Network Test(ANT) in the first week and the fourth week. Results Compared with the control group, the first ANT's response time was significantly increased, and the correct rate, orienting and executive control network were significantly reduced in Amphetamineinduced psychiatric disorders( eg:response time ( 867. 37 ± 272.24 ) ms vs ( 668.56 ± 136. 20 ) ms, correct rate (0.88 ±0.06 ) ms vs (0.88 ±0.06) ms ,orienting( - 217.86 ± 198.00 ) ms vs ( -59.67 ± 85.07 ) ms and executive control network ( 184.74 ± 66.61 ) ms vs ( 74.71 ± 50.77 ) ms, P ＜ 0.01 ), but the alerting network was higher ( ( 151.17 ± 198.27 ) ms vs (50.60 ± 67.47 ) ms). In the second ANT results, there was no significant difference between two groups. Compared with the first ANT results of amphetamine-induced psychiatric disorders, the second ANT had shorten response time ,that the correct rate, orienting and executive control network were significantly increased(P ＜ 0.01 ). Conclusion These results suggest that amphetamine-induced psychiatric disorders have impairment in cognitive function, but these impairment can be recovered within one month.

Adolescent ; Child ; Child, Preschool ; Core Binding Factor Alpha 3 Subunit ; genetics ; metabolism ; DNA Methylation ; Female ; Humans ; Infant ; Lymphoma ; genetics ; metabolism ; Male ; Promoter Regions, Genetic