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The incidence of brain metastases in patients with non-small cell lung cancer (NSCLC) has increased as a result of improved local control rate and survival rate. Prophylactic cranial irradiation (PCI) has been proven to reduce the incidence of brain metastases and improve survival rate in patients with NSCLC. However, the value of PCI for NSCLC is still controversial. This paper reviews the progress of the efficacy and adverse reactions after PCI treatment for patients with NSCLC.
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Objective:To investigate the change in serum epidermal growth factor (EGF) level in patients with Parkinson's disease (PD) and correlate it with cognitive impairment.Methods:A total of 154 patients with early PD who received treatment in Hangzhou Third People's Hospital between July 2017 and June 2018 were included in this study. They were randomly divided into mild cognitive impairment (observation group) and no cognitive impairment (control group) according to the severity of cognitive impairment. Cognitive impairment was graded using Montreal cognitive assessment scale. Motor function was assessed using Unified Parkinson's Disease Rating Scale Part III formulated by International Parkinson and Movement Disorder Society. All these assessments were performed at enrollment and at the end of 2-year follow-up. Serum EGF level was measured by double antibody sandwich enzyme-linked immunosorbent assays. Patients without cognitive impairment were divided into four groups according to quartiles of serum EGF levels. The conversion rate of PD-MCI was calculated at 2 years of follow-up and compared between groups.Results:Among 154 patients, 68 (44.16%) patients developed PD-MCI, and 86 (55.84%) patients had no cognitive impairment. Montreal cognitive assessment scale score and serum EGF level in the observation group were (20.01 ± 3.15) points and (267.79 ± 63.18) ng/L, respectively, which were significantly lower than those in the control group [(28.21 ± 2.84) points, (491.53 ± 67.38) ng/L, t = 8.11, 9.03, both P < 0.001]. Unified Parkinson's Disease Rating Scale Part III score in the observation group was significantly higher than that in the control group [(23.47 ± 5.33) points vs. (18.69 ± 4.37) points, t = 5.18, P < 0.001]. Among the first quartile group, 14 (63.64%) patients converted to PD-MCI; while among the fourth quartile group, 2 (9.52%) patients converted to PD-MCI. The conversion rate of PD-MCI in the second, third and fourth quartile groups was significantly lower than that in the first quartile group (χ 2 = 9.73, 14.48, 33.47, all P < 0.05). Conclusion:Cognitive impairment in patients with PD is closely related to serum EGF level. Serum EGF level is a hematological index to predict cognitive impairment in patients with PD. This study is innovative and scientific.
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Objective:To explore the characteristics of cerebral blood flow changes in MRI perfusion imaging in patients with Parkinson disease (PD) cognition disorders and its correlation with serum epidermal growth factor (EGF) level.Methods:One hundred and twenty PD patients diagnosed and treated from September 2017 to September 2020 in Hangzhou Third People′s Hospital were selected. According to the presence of mild cognitive impairment (MCI), they were divided into PD-MCI group (60 cases) and PD without cognition impairment (PD-NCI) group (60 cases). Another 60 cases of healthy physical examination during the same period were selected as the normal control group. MRI perfusion imaging was used to evaluate the cerebral vascular perfusion in each group, and the EGF level of each group was determined by enzyme-linked immunosorbent assay and compared.Results:The CBF and CBV in the PD-MCI group and PD-NCI group were lower than those in the normal control group, while the MTT was longer than that in the normal control group:(14.78 ± 2.49), (18.21 ± 2.84) ml/(100 g·min) vs. (18.21 ± 2.84) ml/(100g·min); (1.42 ± 0.29), (1.83 ± 0.31) ml/100 g vs. (2.87 ± 0.54) ml/100 g; (10.53 ± 2.18), (7.85 ± 1.39) s vs. (4.29 ± 1.05) s, and the differences were statistically significant ( P<0.05). The CBF and CBV in the PD-MCI group were lower than those in the PD-NCI group, while MTT was longer than that in the PD-NCI group, and the differences were statistically significant ( P<0.05). The level of serum EGF in the PD-MCI group and PD-NCI group were lower than those in the normal control group: (146.25 ± 30.12), (208.17 ± 21.25) ng/L vs. (242.38 ± 25.46) ng/L; the level of serum EGF in the PD-MCI group was lower than that in the PD-NCI group, and the differences were statistically significant ( P<0.05). CBF, CBV and EGF were linearly positively correlated with Montreal Cognitive Assessment Scale (MoCA) scores ( r1 = 0.810, r2 = 0.732, r3 = 0.825, P<0.05), while MTT was linearly negatively correlated with MoCA scores ( r4 = -0.756, P<0.05). Conclusions:PD-MCI patients have abnormal cerebral blood flow, and serum EGF level decrease. In PD-MCI patients, CBF, CBV and EGF are linearly positively correlated with MoCA scores, while MTT is linearly negatively correlated with MoCA scores.
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Objective To explore the clinical efficacy of lymph node involved-field irradiation (IFI) and elective nodal irradiation (ENI) for treatment of esophageal cancer among Asian populations. Methods The randomized controlled trials and retrospective analyses of Asian esophageal cancer patients treated by IFI and ENI were retrieved by computer in Cochrane Library, PubMed, Embase, CNKI, and Wanfang database. The last retrieval time was May 2018. According to the inclusion and exclusion criteria, the clinical efficacy, adverse reactions and failure modes were selected in each study. A Meta-analysis was performed by using Review Manager 5.3 software to compare the advantages and disadvantages of IFI group and ENI group in treatment of Asian esophageal cancer patients. Results Eventually, a total of 18 domestic and foreign literature that meet the standards (6 randomized controlled trials, 12 retrospective analyses) were included, with a total of 2220 patients. There were no significant differences in the overall survival rate, the local control rate, the local/regional failure rate, the distant metastasis rate, the intra-field recurrence rate, and the field recurrence rate between the IFI group and the ENI group (all P>0.05). The overall failure rate of ENI group was slightly lower than that of IFI group (P= 0.05). The incidence of radiation pneumonitis in ENI group was higher than that in IFI group (P= 0.004), and the incidence of radiation esophagitis was higher than that in IFI group (P< 0.01). Conclusion For Asian patients with esophageal cancer, ENI has no obvious advantage compared with IFI, including the increase of adverse reactions.
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To meet the requirements of training objectives for medical students , The national Experimental Teaching Demonstration Center for Clinical Skill (Xi'an Jiaotong University) has established three training platforms for "basic clinical skills", "clinical specialist skills" and "clinical comprehensive skills", and constructed a "whole-process and staged" clinical skills training and assessment system lasting from entering clinical study to graduation, in which clinical courses as the carrier, the clinical skill center as the main training base and containing clinical novitiate, internships and pre-graduation stage. This system integrates clinical skills training and evaluation into the whole process of clinical medicine teaching. More than two years of practice shows that the system has effectively improved the clinical practice ability of medical students, and the quality of medical education, and helped the school achieve the expected teaching objectives.
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Objective To evaluate preoperative three dimensional(3D)reconstruction techniques in perioperative patients of hepatocellular carcinoma (HCC) undergoing hepatectomy.Methods Fifty-eight HCC patients who had undergone hepatectomy between 2015 and 2017 were enrolled.Twenty-three patients underwent hepatectomy based on preoperative 3D reconstruction techniques,while other thirty-five patients were without using it.Results No significant statistical difference was found in clincopathological parameters of patients preoperatively.The patients who underwent hepatectomy based on 3D reconstruction techniques had less operation time (Z =-2.213,P =0.028),hepatic inflow occlusion rate,time (x2 =3.966,P =0.046;Z =-2.371,P =0.018) and blood loss (Z =-2.140,P =0.032) during operation.Totally 23 postoperative complications occurred which were Clavien-Dindo classification grade Ⅰ or Ⅱ.More complications occurred in the not using 3D technique group (x2 =6.061,P =0.014).Conclusion Preoperative 3D reconstruction technique improves the perioperative prognosis of hepatectomy in patients with hepatocellular carcinoma.
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Objective At present, short-course radiotherapy ( SCRT) with immediate surgery and long-course chemoradiotherapy ( LCRT ) with delayed surgery are extremely important regimens in the treatment of rectal cancer. In this meta-analysis, the clinical efficacy and safety were statistically compared between two regimes. Methods Literatures related to SCRT and LCRT including randomized controlled studies and clinical studies were searched from Cochrane Library, PubMed, Embase, China National Knowledge Infrastructure ( CNKI) and Wanfang database with regard to SCRT with immediate surgery or LCRT with delayed surgery. Meta-analysis was conducted by using RevMan 5.3 software. Results Ten studies were finally selected including 5 randomized controlled trials. Meta-analysis demonstrated that the RO resection rate, T downstaging rate, pathological complete response ( pCR) rate in the LCRT group were significantly higher than those in the SCRT group. The incidence rate of adverse events in the LCRT group was higher compared with that in the SCRT group. The sphincter-preservation rate, local recurrence rate, distant metastasis rate, disease-free survival rate, overall survival, late toxicity and postoperative complications did not significantly differ between two groups ( all P>0.05) . Conclusions Compared with SCRT, LCRT can increase the T downstaging rate, R0 resection rate and pCR rate, whereas elevate the incidence rate of acute adverse events. LCRT exerts no significant effect upon overall postoperative complications.
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Objective To investigate the Th1/Th2 cytokines and chemokine CXCL 13 levels in peripheral blood and cerebrospinal fluid(CSF)of patients with neurosyphilis and their clinical significance. Methods Forty seven HIV negative patients with neurosyphilis, 36 syphilis patients without neurological involvement(syphilis group)and 23 patients without infectious intracranial diseases(control group) admitted in Hangzhou Third Hospital during July 2011 to December 2014 were enrolled in the study.CSF pressure, protein contents, white blood cell counts and IgG index were detected in patients with neurosyphilis.Enzyme-linked immunosorbent assay(ELISA)was used to detect the levels of Th1 cytokines (IL-2,IL-12 and IFN-γ),Th2 cytokines(IL-6,IL-10)and CXCL13 in serum and CSF in three groups.Th1/Th2 cytokines,CXCL13 levels and CSF routine were also examined in neurosyphilis patients after treatment for 3 and 12 months.ANOVA, Kruskal-Wallis test and Spearman correlation were used for data analysis.Results The levels of IL-6 and IL-10 in serum and CSF from neurosyphilis patients were higher than those in syphilis group and control group(χ2IL-6=15.43, 15.39 and 14.44, 20.01,χ2 IL-10 =16.46, 23.86 and 15.11,24.44;P<0.05 or <0.01), while the levels of IL-2, IL-12 and IFN-γin the serum and CSF were lower than those in syphilis group and control group(χ2IL-2=14.55,17.14 and 16.14,17.97;χ2IL-12=13.65,20.50 and 18.48,21.04;χ2IFN-γ=16.95,17.53 and 16.00,15.21;P<0.05 or <0.01). CXCL13 contents in CSF of neurosyphilis patients were significantly higher than those in other two groups (χ2=52.51 and 53.76, P <0.01), and were positively correlated with leucocyte counts, protein concentrations,IgG index,IL-6 and IL-10(r=0.325,0.544,0.750,0.333 and 0.382,P<0.05 or <0.01),but were negatively correlated with IL-12 levels in neurosyphilis patients(r=-0.303,P<0.05). In neurosyphilis patients,CXCL13 and IL-6 levels were reduced after treatment for 12 months(χ2=102.00 and 22.17,P<0.05 and <0.01), while the levels of IL-2 and IL-12 were increased(χ2=18.28 and 24.10,P<0.05 and <0.01).Conclusion Chemokine CXCL13 and Th1/Th2 cytokines are involved in the immune response in neurosyphilis patients, which may be used for the diagnosis and evaluation of therapeutic efficacy in patients with neurosyphilis.
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Objective To compare the perioperative outcomes of laparoscopic liver resection (LLR) versus open liver resection (OLR) for hepatocellular carcinoma (HCC).Methods A total of 89 HCC patients undergoing liver resection between January 2012 and November 2016 were enrolled.Nonparametric tests were employed to compare the clinicalpathological characters and preoperative outcomes.Results No significant difference was observed in clinicalpathological features and postoperative morbidity.LLR group had shorter hospital stay (Z =4.642,P ＜0.01),lower serum ALT level in 1st,3rd and 5 day (Z =2.157,3.089,2.384,all P ＜0.05) and AST level in 1st-and 3rd-day postoperatively (Z =2.688,2.566,all P ＜0.05).The growth rate in serum total protein (TP) and albumin (ALB) postoperatively is higher for LLR group (y =2.348 4x + 51.696 vs.y =0.902 9 + 35.532),(y =1.539 9x + 29.68 vs.y =0.732 9x + 30.406).Conclusion LLR allows quicker liver function recovery and shortens patients' postoperative hospital stay.
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Objective To discuss the characteristics,growth and development of atlantoaxial pedicle in preschool children,and to provide the basic theoretical basis for the design,production and clinical application of pedicle screw technique in the treatment of atlantoaxial disease in preschool children.Methods Excluded patients with atlantoaxial fractures,deformities,tuberculosis and tumor,the clinical data of 60 children aged from 3 to 6 years old with cervical spondylolisthesis were collected.The original CT images were reconstructed in DICOM format and the subjects were reconstructed with Mimics software.The subjects were grouped by age to measure and analyze the atlantoaxial pedicle correlation.Results The pedicle width(PW),pedicle height(PH) and total length of pedicle bone channel (PL) increased gradually with age.The PW/PH ratio of the vertebrae(C1) is greater than 1.0,and that is, the width of the pedicle of the C1 pedicle is greater than the height.The PW/PH ratio of the vertebral (C2) is less than 1.0,which means the width of the pedicle of the C1 pedicle is less than the height.Conclusion The growth and development of spine in preschool children are fast, and the pedicle of atlantoaxial calculus in different age groups has different developmental characteristics.In this study,the diameter of the pedicle of the atlantoaxial pedicle in the 3 to 6 year old children is increasing with age.The pedicle screw with the smallest diameter of 3.5 mm can be implanted into the atlantoaxial pedicle with feasibility in theory.
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Time perspective therapy (TPT) which belongs to positive psychology is a new psychological intervention to post-traumatic stress disorder (PTSD).A large number of studies abroad have testified that TPT is very long-term effective,what′s more, TPT has been popularized and improved by foreign scholars but not been applied in China.TPT has been a study issue in mental and psychological fields,but that how to apply TPT rightly in China needs to explore.Therefore, this paper systematically introduced and analyzed TPT theory, the problems of applying TPT and the enlightenment of nursing PTSD,so as to help Chinese scholars apply TPT to solve problems and status of nursing PTSD in China.
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Objective To investigate the relationship between accompanying infection and the change of immunologic function in type 2 diabetes mellitus ( T2DM) patients.Methods One hundred and fifteen T2DM patients with infection and 95 T2DM patients with no infection were selected,and 102 subjects with no history of dia-betes were selected as no diabetetes with infection group.The venous blood of all groups were sampled after an over-night fast of 12h.Glycosylated hemoglobin a1c(HbA1c) level was tested by glycosylated hemoglobin automatic analy-zer.The levels of T cell subsets including CD3 ,CD4 ,CD8 ,NK cell and B cell ratio were tested by flow cytometry,Ig and complement level was tested by immune nephelometry.Results The level of body mass indices(BMI) in T2DM patients with infection group[(27.39 ±9.18) kg/m2 ] and with no infection group[(26.15 ±7.39) kg/m2 ] were higher than no diabetes with infection group (24.21 ±5.37)kg/m2 (t =2.548,4.702,all P <0.05).The levels of IgG,IgA,IgM,C3 ,C4 in T2DM with infection group were (11.83 ±3.92)mg/mL,(3.02 ±0.96)mg/mL,(3.38 ± 0.82)mg/mL,(1.70 ±0.38)mg/mL,(0.52 ±0.18)mg/mL,which in T2DM with non infection group were (12.46 ± 2.47)mg/mL,(2.63 ±1.37)mg/mL,(2.91 ±1.79)mg/mL,(1.58 ±0.43)mg/mL,(0.46 ±0.31)mg/mL,which in no diabetetes with infection group were (13.26 ±3.74)mg/mL,(2.06 ±1.86)mg/mL,(2.49 ±1.01)mg/mL, (1.19 ±0.82)mg/mL,(0.30 ±0.05)mg/mL.In T2DM with non infection group and T2DM with infection group, humoral immunity index including the level of IgG was lower and IgA,IgM,C3 ,C4 levels were higher than no dia-betetes with infection group,the differences were statistically significant(t =7.052,23.059,12.617,18.326,8.730, all P <0.05).The levels of CD4 ,CD8 ,NK,CD4 /CD8 ,CD3 were (37.68 ±8.39)%,(31.58 ±6.98)%,(10.76 ± 6.49)%,(1.19 ±0.75),(62.83 ±5.28)% in T2DM with infection group,which in T2DM with non infection group were (39.23 ±10.28)%,(27.61 ±5.65)%,(14.89 ±7.12)%,(1.39 ±1.01),(64.19 ±6.46)%,which in no diabetes with infection group were (42.91 ±5.67)%,(25.17 ±7.25)%,(16.39 ±6.24)%,(1.86 ±0.82), (73.65 ±9.10)%.Cellular immunity index containing CD4 ,CD8 ,NK,CD4 /CD8 ,CD3 levels decreased more signifi-cantly than no diabetic group,T2DMI group compared with T2DM group,the levels of IgG,CD4 ,CD8 ,NK,B cell ratio, CD4 /CD8 ,CD3 decreased obviously,while the levels of IgA,IgM,C3 declined greatly,there were significant differences (t =11.038,8.237,18.549,25.871,2.436,all P <0.05).Conclusion Patients with T2DM have humoral and cellular immunity abnormalities,T2DM patients with infection is closely related with the imbalance of immunologic function.
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Objective To investigate the epidemiological characteristics of dengue fever in Shenz-hen city in 2014 and to analyze the evolutional characteristics of the epidemic dengue virus(DENV)strains in order to provide scientific guidelines for the prevention and control of dengue fever. Methods Descrip-tive epidemiological analysis was used to analyze the prevalence of dengue fever in Shenzhen city in 2014. Immunochromatography and real-time PCR were performed to detect the specific antibodies(IgM and IgG) and DENV nucleic acids in serum samples collected from suspected cases of dengue fever. Serum samples collected from the patients at early stage of dengue fever were used to infect the C6 / 36 cell line for further isolation of DENV strains. The types of isolated DENV strains were determined by using real-time PCR. E genes of the isolated DENV strains were amplified by RT-PCR and then sequenced. DNAStar and Clustslx (1. 83)softwares were used to analyze the homology between DENV strains isolated in Shenzhen and other areas. A phylogenetic tree based on the sequences of E genes of Shenzhen strains and other sequences of DENV reference strains downloaded from GenBank was constructed for further analysis. Results A total of 454 cases of dengue fever were reported in Shenzhen in 2014 with a male to female ratio of 1. 43 ∶ 1. Local patients accounted for 76. 21% and the rest 23. 79% were imported cases mainly from Southeast Asian and surrounding cities. There were 441 cases reported from September to November,accounting for 97. 14% of all reported cases. Most of the infected subjects were aged 20 to 50,accounting for 76. 73% . Of the 270 samples positive for DENV nucleic acids,strains of DENV-1,DENV-2,DENV-3 and DENV-4 accounted for 87. 41% ,8. 89% ,0. 37% and 2. 22% ,respectively. The phylogenetic tree analysis revealed that the DENV-1 strains belonged to two genotypes,which were genotypeⅠ and genotype Ⅴ. The DENV strains of genotypeⅠ were highly similar to the epidemic strain isolated in Shenzhen in 2010 and the genotype Ⅴstrains were first reported in Shenzhen. The homology analysis of the nucleotides of E genes showed that mi-nor differences in the nucleotide sequences were found between DENV-2 strains. All of the DENV-2 strains belonged to the genotype Ⅳ as indicated by the phylogenic tree. Conclusion There were 454 cases of den-gue fever(including both local and imported cases)reported in Shenzhen city in 2014,reaching an all-time high. DENV-1 was the predominant pathogen in combination with an increased infection of DENV-2. This study indicated that the prevalent DENV strains might be imported from Southeast countries and neighboring cities. Further researches should be conducted to analyze whether dengue fever is endemic in Shenzhen City.
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Objective To provide accurate bone tunnel positioning reference for clinical individual anterior cruciate ligament (ACL) reconstruction by three-dimensional (3D) reconstruction of femoral and tibial original footprint of ACL.Methods Forty volunteers were selected for this study,including 20 males and 20 females,and aged 18 to 35 years old.3D CT scanning images of knee data were obtained.3D bone models of knee and footprint of ACL were reconstructed.On the 3D reconstruction models,the shape and position of original footprint of ACL were displayed.Statistical significance was compared for their difference.Results Femoral original footprint of ACL,long axis of footprint,distances to the distal margin of the articular cartilage (DDCM),distances to the posterior margin of the articular cartilage (DPCM),double bundle center distance,and tibial original footprint short axis of ACL were significantly different between genders (P ＜ 0.05).However,no significant difference was found between genders for tibial original footprint long axis of ACL (P ＞ 0.05).Conclusions The insertion mark shape and nature position of footprint of ACL could be observed by 3D reconstruction using CT scan images.
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OBJECTIVE:To explore the new mode of industry-university-institute unification for pharmacy professionals. METHODS:The research-teaching interactive platform was established through the principles of“complementary advantages, shared interests and mutual benefits”. RESULTS:It changed the traditional teaching mode,and it ensured the professional plan-ning,curriculum development and training objectives of students based on“4 analysis,2 setting and 1 implementation”. CONCLU-SIONS:The opportunities for cooperation between students and employers were broadened and students’awareness of innovation and entrepreneurship was enhanced. It cultivates project-based pharmaceutical,technical and skilled personnel,solves the problem of industry-university-institute unification and has certain significance for the development of China’s pharmaceutical education.
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Objective To analyze the genetic characteristics and molecular variation of human rhi-novirus strains isolated in Shenzhen.Methods RNA samples were extracted from nasopharyngeal swab samples collected from influenza-like subjects in Shenzhen and analyzed by fluorescent RT-PCR.The VP4-VP2 and VP1 gene regions of human rhinovirus strains were amplified by nested RT-PCR.Clustal W and MEGA programs were used to evaluate molecular variation of the human rhinovirus strains.Results Both human rhinovirus A and B were prevalent in Shenzhen during 2012.Human rhinoviruses A was the predomi-nant pathogen, including subtypes A47, A31, A90, A18 and so on.Two recombinant strains of human rhi-noviruses A47 and A31 were detected.The mutations scattered on the VP1 protein and varied in different subtypes.The receptor binding sites ( loop BC, DE and HI) in different subtypes showed polymorphism. Five out of twenty-five drug sensitivity sites ( I121V, L123M, V167I, Y189H and H259G) showed muta-tion.Conclusion Multiple subtypes of human rhinovirus were prevalent in Shenzhen and were in a state of constant recombination and variation.
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Objective To study the epidemic pattern and molecular variation of respiratory syncy-tial virus ( RSV) strains isolated in Shenzhen from year 2012 to 2013.Methods The clinical samples iso-lated from patients with influenza-like illness were analyzed by fluorescent RT-PCR to screen RSV positive strains.The C-terminal variable regions of genes encoding G proteins were amplified by nested RT-PCR. Molecular variation was analyzed by using Clustal W and MEGA softwares.Results RSV strains were wide-ly prevalent in Shenzhen from 2012 to 2013.Two epidemic peaks usually occurred in spring and summer/au-tumn of each year.The RSV isolates were subtyped into group A belonging to genotype NA1 and group B be-longing to genotype BAⅨ.Most of the mutations scattered at the C-terminal region of G protein.A few mu-tations caused the disappearance of certain glycosylation sites.A novel recombinant virus strain containing 24 inserted amino acids was identified in 2013, which was likely to be introduced into our country from abroad. Conclusion RSV strains were widely and continuously prevalent in Shenzhen, characterized by constant evolution and variation.
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Objective To investigate the effect of continuous positive airway pressure (CPAP) on seizure frequency in epilepsy patients complicated with obstructive sleep apnea (OSA). Methods Subjects were divided into CPAP group (20 subjects) and medication group (22 subjects) according to whether they can tolerate CPAP. CPAP group were treated with CPAP combined with antiepileptic drugs. Medication group were treated with antiepileptic drugs alone. Seizure frequency and apnea-hypopnea index (AHI) were compared between groups before and after 4 weeks and 24 weeks of treatment. Results Baseline seizure frequency and apnea-hypopnea index (AHI) were compared between groups(P>0.05). A sig?nificant reduction of seizure frequency was observed in CPAP group after 4 weeks and 24 weeks of treatment compared to that before treatment (P0.05). A significant reduction of AHI was ob?served in the CPAP group after 24 weeks of treatment compared to that before treatment (P0.05). Conclusion Treatment of OSA in patients complicated with epilep?sy may improve seizure control in short and long term, but longer observation time and more samples are needed for further research.
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10.3969/j.issn.2095-4344.2013.26.020
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Objective To study the effects of erythropoietin(EPO) and angiotensin receptor blocker on the expression of eNOS and Bcl-2 after cerebral ischemia.Methods The model of focal cerebral ischemia was made by occluding middle cerebral artery(MCA) for 2h and reperfusing for 48h in healthy Sprague-Dawley rats.The rats received EPO 3 000u · kg-1 · d-1 or valsartan 40mg · kg-1 · d-1 by intraperitoneal injection just before the beginning of reperfusion and after reperfusion.The expression of eNOS and Bcl-2 was detected.Results Compared with ischemia group,Bcl-2 and eNOS expressions in EPO-treated group and EPO-ARB treated group were significantly increased (P ＜ 0.05).eNOS expression in ARB-treated group was significantly increased (P ＜ 0.05),Bcl-2 expression was up-regulated,but it had no significant difference.Conclusion EPO had protective effects on cerebral ischemia-reperfu-sion injury in rats,which partially mediated by up-regulating of Bcl-2 and eNOS expression.Angiotensin receptor blocker had protective effects on cerebral ischemia-reperfusion injury in rats,which partially mediated by up-regulating of eNOS expression.