AlM: To study the correlation between and the peripapillary retinal nerve fiber layer ( RNFL ) thickness, structure changes in non-proliferative diabetic retinopathy ( NPDR) and the the changes of visual function
METHODS:Eighty cases ( 80 eyes ) of patients with NPDR who were in our hospital from January 2011 to December 2013 as group NPDR, 60 cases of patients ( 60 eyes) without retinopathy who were in the hospital were selected as non-diabetic retinopathy group ( NRD) group, meanwhile, 50 healthy people who had health examination in our hospital as control group. The RNFL thickness and visual electrophysiological testing were performed on the study objects in the three groups, and the results were compared among groups.
RESULTS: Group NPDR's above, below, nasal, temporal and average RNFL thickness were 91. 52 ± 18. 52, 88.63±21. 65, 63. 62±11. 72, 60. 42±9. 13, 69. 36±12. 52μm, those of group NPDR were 111. 32 ± 21. 90, 113. 57 ± 22. 67, 74.31±11. 74, 67. 64±12. 34, and 97. 31±11. 43μm,those of group control were 121. 65±21. 42, 129. 32±23. 31, 82. 42±9. 28, 80. 32±8. 51, 102. 54±21. 82μm. To compare of average thickness of RNFL of three groups, groups NPDR and NPD were thinner than that of control group;To compare each quadrant phase, above, below, nasal, the RNFL thickness among three groups had statistical significance (P<0.05), while nasal sides had no obviously changes (P>0. 05);At the same time, 60′P100 latency (MS), 60′P100 amplitude ( V ) , 15′ P100 latency ( MS ) and 15′ P100 amplitude ( V) of three groups had statistical significance (P<0. 05).
CONCLUSlON: The changes of RNFL thickness have occurred in the early time of NPDR, and mainly the above, below and temporal , and it has a significant relevance with the changes of visual function.

In response to problems from the development of multi-drug-resistant pathogenic bacteria,it is urgent to find new antimicrobials.Antimicrobial peptides(AMPs) are a kind of ideal new antimicrobials with the advantages including their potential for broad-spectrum activity,rapid bactericidal activity and low propensity for resistance development,and have a bright future.Alpha-helical antimicrobial peptides are a main kind of AMPs.The following features was reviewed and elucidated including the structure and activity relationship(SAR) from different aspects including the degree of helicity,hydrophobic moment,hydrophobicity,net positive charges and so on,and the application of SAR on the molecular design and improvement of AMPs.

Objective To reverse P-glycoprotein-mediated muhiple drug resistance using RNA interference(RNAi)in cultured rat astrocytes.Methods Astroeytes overexpressing P-glyeoprotein induced by coriaria lactone were transfected with the short-hairpin RNA expression vector-p-SIREN shuttle designed to target Mdrl mRNA.The mRNA level of Mdrl gene was evaluated by real-time PCR;the P-glycoprotein was examined by immunocytochemistry and image analysis,meanwhile the rhodamine efflux was assessed by flow cytometry.Results The astrocyte model overexpressing P-glycoprotein were established and successfully transfected with the short-hairpin RNA expression vector-p-SIREN shuttle.The mRNA level of Mdrl gene was knocked down by 67.70%(P

Adult ; Antigens, CD ; metabolism ; Antigens, Differentiation, Myelomonocytic ; metabolism ; Carcinoma, Giant Cell ; metabolism ; pathology ; Diagnosis, Differential ; Granuloma, Plasma Cell ; metabolism ; pathology ; Histiocytosis, Sinus ; metabolism ; pathology ; surgery ; Humans ; Immunohistochemistry ; Lung Diseases ; metabolism ; pathology ; surgery ; Lung Neoplasms ; metabolism ; pathology ; Male ; Pneumonectomy ; methods ; S100 Proteins ; metabolism ; Vimentin ; metabolism

OBJECTIVE: To study the objectivity and reliability of needle electromyography and nerve conduction for detection of musculus extensor digitorum brevis strength, which may provide a basis for establishing a quantitative detection of muscle strength in forensic clinical study. METHODS: Forty-four healthy people were enrolled as the subjects, and during toe dorsiflexion, the following items including needle electromyography indexes, motor unit potential (MUP) amplitude, MUP count, recruitment reaction type, and nerve conduction detection indexes, compound muscle action potential (CMAP) amplitude, CMAP latent period and motor nerve conduction velocity (MNCV), were simultaneously detected under the cooperation and disguise condition. RESULTS: Under the cooperation condition, regardless of the same operator or different operators, there were good test-retest reliabilities in MUP amplitude, CMAP amplitude, CMAP latent period and MNCV, while there were normal test-retest reliabilities in MUP count and recruitment reaction type and the repeatability of the same operator was slightly better than the repeatability between different operators. Under the disguise condition, test-retest reliabilities of MUP amplitude, CMAP amplitude, CMAP latent period and MNCV were relatively high, while test-retest reliabilities of MUP count and recruitment reaction type were relatively low. CONCLUSION There are good test-retest reliabilities in MUP amplitude, CMAP amplitude, CMAP latent period and MNCV, which can be conducive to comparison between different operators and results at various times; MUP count and recruitment reaction type, which can be easily affected by subjectivity of operators and examinees, can be used to differentiate whether an examinee disguises or not. The indexes used to objectively judge muscle strength remain to be further investigated.
Electrodes, Implanted ; Electromyography ; Humans ; Muscle Strength/physiology* ; Muscle, Skeletal/innervation* ; Neural Conduction/physiology* ; Reproducibility of Results ; Toes

Objective To investigate the function characteristics of CD4 T cell converted double negative T cell and provide a basis for further insight into the characteristics of mouse converted double negative T cell.Methods The gene expression profile was analyzed by transcriptome sequencing and protein mass spectrometry.The expression of cell active marker CD44,CD69 and OX40 was investigated by flow cytometry and the cytotoxicity of mouse double negative T cell was verified by CFSE staining.Results Mouse CD4 T cell converted double negative T cell expressed cell phenotype that differed from other mature CI4 T cells.Mouse converted double negative T cell expressed high level of active marker of CD44,CD69 and OX40.Cytotoxicity of PrfO DN T was significantly reduced.Conclusions Mouse CD4 T cell converted double negative T cell has distinguishing cell phenotypes,that are not identical to other mature CD4 T cells.Mouse double negative T cell overexpresses cell activation marker and cytotoxic cytokines.The immune suppressive function of mouse double negative T cell is mainly dependent on perforin pathway.

Bridged-Ring Compounds ; poisoning ; Humans ; Male ; Middle Aged ; Poisoning ; therapy ; Treatment Outcome

[Objective]To investigate the micro-structural alterations within whole brain white matter(WM) in cough syrup abuse addiction patients containing codeine,and to explore the correlation between aberrant WH and abuse time of cough medicine abuse patients.[Methods]Thirty cough syrup abuse addiction patients containing codeine and 30 controls participated in the study. Structural changes in FA and(mean diffusivity)MD were examined in cough syrup abuse addiction patients containing codeine which derived from DTI tractography. Pearson correlation analysis was performed to compare the mean FA value and duration of cough syrup abuse addiction in patients.[Results]Cough syrup abuse addiction patients containing codeine had lower FA value in bilateral anterior limb of internal capsule(ALIC)and higher MD in the bilateral hippocampus and insula,right anterior cingulate cortex(ACC)and superior temporal gyrus,compared to the controls. Cough syrup abuse addiction group also had positive correlation between mean FAvalues and duration of cough syrup abuse addiction in patients.[Conclusion]Micro-structural alterations within whole brain white matter(WM)are found in cough syrup abuse addiction patients containing codeine. This disturbance progresses as duration increases of cough syrup abuse addiction in patients.

Objective To observe the changes of expressions of glucose transporter 1,3 gene(GLUT1 mRNA and GLUT3 mRNA) in hippocampus after hypoxic-ischemic brain damage in newborn rats and effects of progesterone on them.Methods Forty SD rats(7-day-old) were divided randomly into 4 groups:normal group,sham operation group,hypoxic-ischemic group and progesterone group.Rats were subjected to right common carotid artery ligation and exposed to 80 mL/L oxygen and 920 mL/L nitrogen gas for 2 hours to establish hypoxic-ischemic model in hypoxic-ischemic group and progesterone group.The rats in sham operation group only received right common carotid artery ligation.Progesterone(8 mg/kg) or sesame oil(of same volume) was given intraperitonealy in progesterone group or other groups 30 minutes before operation.All rats were killed 24 hours after operations.The expressions of GLUT1 mRNA and GLUT3 mRNA in hippocampus of rats in every group were assessed by adopting RT-PCR technique.Results The expressions of GLUT1 mRNA and GLUT3 mRNA in the hypoxic-ischemic group(0.674?0.083,0.785?0.093) increased markedly compared with those in sham operated group(0.374?0.061,0.519?0.060)(Pa0.05).Conclusions Progesterone maintain the energy supply of the brain by up-regulating the expression of GLUT1 mRNA and GLUT3 mRNA and accelerating the transportation of glucose into brain,which may be one of the protective mechanisms.

OBJECTIVE To provide gists for educations about AIDS control through finding out the knowledge among medical staff at a low infected area.METHODS The questionnaires including 30 questions of 5 kinds were analyzed.RESULTS The awareness rate of total knowledge among medical staff was 64.94%.The positive rate about common knowledge was upon 88%.But the rate about comprehensive knowledge such as diagnosis standard,therapy way,disinfection measure,career defending,law function,and so on was law.The correct answers on 17 questions among nurses were higher than doctors(P