Sleep disorders are common diseases with various dys-function during sleep-wake process, including difficulty falling or staying asleep, falling asleep at inappropriate times, excessive total sleep time, or abnormal behaviors associated with sleep. Sleep disorders can lead to the deposition of amyloid beta protein ( Aβ) by affecting the normal metabolism of amyloid beta protein in the brain. Patients with Alzheimer’s disease ( AD) often suffer from sleep disorders, and its pathology always results in more se-vere sleep disorders, which leads to a risk of cognitive impair-ment and hypofunction. Sleep disorders could interact closely with AD, forming a positive feedback loop, which causes serious damage to the body health. This review summarized the current research about sleep disorder in the onset of AD and the current status of medication.

ObjectiveTo probe into the clinical application effect of continuity care model in stroke patients. Methods58 patients with stroke in our hospital during June 2008 to June 2011 were selected.According to block randomization method,the selected patients were divided into the study group and the control group with 29 patients in each group.The control group received routine care interventions,while patients in the study group was given routine care interventions plus continuity care model.Activities of daily living,compliance behavior,quality of life,nursing satisfaction degree and other related indicators of patients in two groups were comparatively analyzed. ResultsCompared with the control group,the activities of daily living of the study group at discharge did not show significant differences,while 1 month,3 months,6 months after discharge,the activities of daily living was significantly increased.Regular medication,exercise time,timely return visit,proper diet and other indicators of compliance behaviors were significantly improved.The quality of life score did not show significant differences at discharge,while 3 months after discharge,the quality of life score were significantly higher in the study group than that of the control group.The satisfaction degree of patients was significantly higher in the study group than that of the control group. ConclusionsApplication of continuity care model in stroke patients can improve activities of daily living,compliance behavior,quality of life,satisfaction degree with nurses.It's worthy of further clinical application and promotion.

OBJECTIVE To investigate the oropharyngeal bacterial carriage in hospitalized elderly patients without acute infections and the antimicrobial resistance,and the risk factors for the bacterial carriage.METHODS An oropharyngeal swab was taken from each patient after they rinsed their mouths with sterile saline.Bacteria were cultured and identified with routine methods and the antimicrobial susceptibility testing was carried out with disk diffusion method.RESULTS The oropharyngeal bacterial carriage rate was 55.2% in elderly patients.Sixty two pathogens were isolated including 56(90.3%) strains of Gram-negative bacilli,5(8.1%) Gram-positive cocci and 1 Candida albicans.All of 34 strains of Haemophilus spp were susceptible to antimicrobials tested such as ampicillin and cefaclor,a few strains were resistant to gentamicin and ciprofloxacin.Of 10 strains of Klebsiella pneumoniae,4 strains were extended-spectrum ?-lactamases positive and resistant to cefotaxime.Logistic analysis indicated that denture-wearing was the risk factor for the oropharyngeal bacterial carriage in elderly.CONCLUSIONS Oropharyngeal bacterial carriage rate is high in hospitalized elderly patients.The major colonized bacteria are Gram-negative bacilli.Denture-wearing is the risk factor for the oropharyngeal bacterial carriage in elderly.

Objective To investigate the aassociation of a microRNA-137 (miR-137) polymorphism, single nucleotide polymorphism (SNP) rs1625579, with neurocognitive function in patients with schizophrenia. Methods A total of 250 patients with schizophrenia were included in this study. The positive and negative syndrome scale (PANSS) was used to evaluate patients. The brief assessment of cognition in schizophrenia (BACS) scale was used to determine neurocongnitive functions in patients. Blood samples of patients were collected, and SNaPshot technique was used to compare the neurocognitive functions of different genotypes of rs1625579. Results The genotypes of TT, GT and GG were 221 (88.4%), 28 (11.2%) and 1(0.4%). There was no significant difference in PANSS score between TT genotype carriers and G allele (GG+GT) carriers. The detection of BACS showed that the digit sequencing score was significantly lower in patients with TT genotype than that of G allele (GG+GT) carrier ( P<0.05). There were no significant differences in other scores of BACS evaluation between two groups of patients. Conclusion The miR-137 polymorphism influences the working memory performance of schizophrenic patients in Chinese Han population.

This study is to investigate the sedative and hypnotic effects of a novel compound H1208. The sedative activity of H1208 was investigated by recording the spontaneous locomotor activity of mice. The hypnotic property was evaluated by the latency and duration of sleep (loss of righting reflex) in mice and the effect of hypnotics on sleep pattern of electroencephalogram were studied in conscious, freely moving mice with chronically implanted electrodes. The brain monoamine neurotransmitters levels in mice were measured by high performance liquid chromatography-electrochemical detection. The spontaneous locomotor activity was decreased by 56.7% and 80.2% in H1208 (5 and 25 mg x kg(-1), ip) treated mice, respectively. The loss of righting reflex was directly induced in mice after H1208 (60 mg x kg(-1), ip) administration. The non-rapid eye movement sleep increased significantly by 131% and 259%, respectively, within 3 hours after H1208 (30 and 60 mg x kg(-1), ip) administration. However, the rapid eye movement sleep decreased significantly. The contents of DA in the striatum and cortex and 5-HT in the cortex decreased significantly. These results demonstrated that H1208 has potent sedative and hypnotic effects, which may be closely related to the decreased contents of DA and 5-HT in mouse brain.

After a description of the background and popularization of reading therapy, strategies, contents and models for the synergic innovation of reading therapy were elaborated with suggestions put forward for its implementation.

Objective To analyze the clinical and molecular features of community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infection in neonates and to investigate their antibiotic resistance profiles.Methods A total of 35 invasive CA-MRSA strains were collected from six hospitals in 2014.Multilocus sequence typing (MLST), staphylococcal cassette chromosome mec (SCCmec) typing and spa typing were used to analyze these isolated CA-MRSA strains.In vitro antibiotic susceptibilities of those strains to 15 antibiotics were analyzed by using agar dilution method.Results Up to 88.6% patients were late-onset infection and septicemia (24, 68.5%) was the most common infection among the 35 cases.A total of 16 patients (45.7%) suffered from complications.Caesarean section and premature birth were risk factors for invasive CA-MRSA infection.ST59-MRSA-SCCmecⅣa-t437 (14, 40%) was the most predominant CA-MRSA clone, followed by ST59-MRSA-SCCmecⅤ-t437 (13, 37.1%).The incidence of severe complications caused by ST59-MRSA-SCCmecⅤ-t437 was higher than that caused by ST59-MRSA-SCCmecⅣa-t437 (P<0.05).Up to 85.7% of the isolated CA-MRSA strains were multidrug-resistant strains.Conclusion This study shows that neonatal invasive CA-MRSA infections mainly result in septicemia and are often accompanied by complications and involve multiple organs.Multidrug-resistant CA-MRSA strains are prevalent in neonates.ST59-MRSA-SCCmecⅣa-t437 is the predominant clone causing neonatal invasive CA-MRSA infection.

Objective:To determine the clinicopathological significance of the DNA methyltransferase 3B (DNMT3B)overexpression in endometrial carcinomas and to evaluate its correlation with hormone re-ceptor status.Methods:Immunohistochemistry was performed to assess the expression of DNMT3B and hormone receptors in 104 endometrial carcinomas.Results:DNMT3B overexpression occurred frequently in endometrioid carcinoma (EC,54.8%)more than in nonendometrioid carcinoma (NEC,30.0%) with statistical significance (P =0.028).Furthermore,there was a trend that EC with worse clinico-pathological variables and shorter survival had a higher DNMT3B expression,and the correlation between DNMT3B and tumor grade reached statistical significance (P =0.019).A negative correlation between DNMT3B and estrogen receptor (ER)or progesterone receptor (PR)expression was found in EC. NMT3B overexpression occurred frequently in the ER or PR negative subgroups (78.9%,86.7%)more than in the positive subgroups (47.7%,47.8%)with statistical significance (P =0.016,P =0.006). In addition,the DNMT3B overexpression increased in tumors with both ER and PR negative expression (92.9%,P =0.002).However,no such correlation was found in NEC (P >0.05).Sequence analyses demonstrated multiple ER and PR binding sites in the promoter regions of DNMT3B gene.Conclusion:This study showed that the expression of DNMT3B in EC and NEC was different.DNMT3B overexpres-sion in EC was associated with the worse clinicopathological variables and might have predictive value. The methylation status of EC and NEC maybe different.In addition,in EC,DNMT3B overexpression negatively correlated with ER or PR expression.In NEC,the correlation between DNMT3B and ER or PR status was not present.

Objective:To construct lentiviral vector which can overexpression miR-137 and produce lentivirus by lentivirus packaging system, and to explore its infection efficiency and expression in HEK293T cells.Methods: miR-137 sequence was chemically synthesized and cloned into lentiviral vector GV209, and the recombinant plasmid containing human miR-137 was obtained and identified.Then miR-137 recombinant plasmid together with two helper plasmids were transfected into HEK293T cells using Lipofectamine 2000.After the HEK293T cells were infected in multiplicity of infection(MOI) 40 for 48 h, the expression of green fluorescent protein (GFP) was observed by fluorescence microscope and the expression level of miR-137 was detected by fluorescence quantitative PCR.Results:The sequencing results showed that the inserted gene sequence was completely consistent with the published human miR-137 gene sequence in GenBank.The GFP was observed in the HEK293T cells infected with miR-137 overexpression lentivirus under fluorescence microscope.The fluorescence quantitative PCR results showed that the expression level of miR-137 in the cells infected with overexpression lentivirus was 12.74 times higher than that in the control cells.Conclusion:The lentivirus containing miR-137 gene is successful packaged, and it could efficiently infect the HEK293T cells.

Aim To investigate the sedative and hyp-notic effects of a novel compound H057 . Methods The sedative activity of H057 was investigated by re-cording the spontaneous locomotor activity in mice. The hypnotic property was evaluated by the latency and duration of loss of righting reflex( LORR) in mice and effect of H057 on the sleep onset in subthreshold dos-age of sodium pentobarbital treated mice. The extracel-lular levels of GABA and monoamine neurotransmitters in in cerebral cortex were measured by microdialysis in vivo. Results The spontaneous locomotor activity was decreased by 25% and 66% in H057 ( 5 , 25 mg · kg-1 ,i. p. ) treated mice, respectively. H057 ( 3, 5 mg·kg-1 ,i. p. ) increased the sleep onset to 62. 5%and 87. 5% in subthreshold dosage of sodium pentobar-bital(25 mg·kg-1,i. p. ) treated mice. H057(≥60 mg· kg-1 , i. p. ) could completely induce LORR in mice. The latency of LORR at dose of 60 mg · kg-1 was (24 ± 11) min and the duration of LORR was (96 ± 15 ) min. In vivo mircodialysis revealed that H057 (25 mg·kg-1 , i. p. ) could significantly increase the GABA level by 26% and decrease the 5-HT and NE levels by 50% and 38% in cerebral cortex in mice. Conclusion H057 has potent sedative and hypnotic effects, which may be closely related to the increased content of GABA and the decreased contents of 5-HT and NE in the extracellular fluid in cerebral cortex.