首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   265篇
  免费   44篇
  国内免费   10篇
儿科学   9篇
妇产科学   2篇
基础医学   30篇
临床医学   36篇
内科学   13篇
皮肤病学   1篇
神经病学   145篇
特种医学   5篇
外科学   1篇
综合类   24篇
预防医学   1篇
眼科学   40篇
药学   9篇
中国医学   3篇
  2023年   9篇
  2022年   16篇
  2021年   18篇
  2020年   21篇
  2019年   11篇
  2018年   22篇
  2017年   36篇
  2016年   21篇
  2015年   15篇
  2014年   27篇
  2013年   27篇
  2012年   19篇
  2011年   22篇
  2010年   8篇
  2009年   15篇
  2008年   12篇
  2007年   7篇
  2006年   2篇
  2005年   2篇
  2004年   3篇
  2003年   1篇
  2001年   2篇
  1999年   1篇
  1991年   1篇
  1990年   1篇
排序方式: 共有319条查询结果,搜索用时 15 毫秒
1.
AIM: To describe the clinical characteristics and treatments associated with antibody positive optic neuropathies including anti-myelin oligodendrocyte glycoprotein (MOG) and anti-aquaporin 4 (AQP4), alongside diagnostic modalities, investigations, and outcomes. METHODS: A cross-sectional single-centre retrospective case series consisting of 16 patients including 12 anti-MOG positive patients and 4 anti-AQP4 positive patients. Each of these patients had clinical signs and symptoms of optic neuritis and consisted of all patients who had a positive blood antibody result in our centre. Clinical findings including presence of a relative afferent pupillary defect, colour vision and disc assessment were recorded. Structured clinical exam and multimodal imaging was undertaken sequentially on each. Optical coherence tomography (OCT) scanning was preformed to examine the correlation between ganglion cell layer (GCL) thickness and visual acuity (VA) at presentation and as a determinant of final visual outcome in both groups. Initial and long-term treatment is also summarised. RESULTS: A total of 16 patients were included in the study consisting of 12 anti-MOG and 4 anti-AQP4 positive patients. Nine of the 16 patients were female and the average age of onset was 29.2y in the MOG group and 42y in the AQP4 group. There was no statistically significant correlation (Pearson correlation) between GCL thickness and presenting and final VA [r(10)=0.081, P=0.08 and r(10)=0.089, P=0.34 respectively]. The same statistical analysis was performed for the correlation between retinal nerve fibre layer (RNFL) and VA and similar outcomes were observed [r(10)=0.04, P=0.22 and r(10)=0.09, P=0.04]. No correlation was seen for initial RNFL thickness and final visual outcome in this group either [r(2)=0.19, P=0.38]. Visual field testing and radiological findings for each group are described. CONCLUSION: No correlation between initial VA or RNFL and final visual outcome is identified. A broad range of visual field and radiographic findings are identified, a consensus on treatment of neuromyelitis optica spectrum disorders and anti-MOG positive optic neuropathies has yet to be accepted but initial high dose immunosuppression followed by low dose maintenance therapy is favoured.  相似文献   
2.
3.
[目的]评估规律性八段锦运动对视神经脊髓炎谱系疾病患者残疾状态及日常生活能力恢复情况的影响。[方法]选取视神经脊髓炎谱系疾病患者58例,随机分成试验组和对照组,每组29例,分别给予常规药物治疗+基础训练+八段锦干预、常规药物治疗+基础训练,疗程12周。比较两组扩展残疾状态量表(EDSS)评分、Barthel指数、Ashworth评分和疲劳严重度量表(FSS)评分的变化情况。[结果]试验组中,患者的EDSS评分、Barthel指数、Ashworth评分和FSS评分较干预前明显改善,差异具有统计学意义(P0.05);与对照组比较,EDSS评分和Barthel指数改善具有统计学意义(P0.05)。对照组中,患者Barthel指数、Ashworth评分和FSS评分较干预前明显改善(P0.05)。两组这4项指标的改善程度比较中,与对照组比较,试验组在EDSS评分、Barthel指数、Ashworth评分和FSS评分的改善程度更明显(P0.05)。[结论]规律的八段锦干预能明显改善视神经脊髓炎谱系疾病患者残疾状态、日常生活能力、肢体痉挛程度和疲劳状态,适合临床推广应用。  相似文献   
4.
目的:回顾性分析脱髓鞘性视神经病变的临床特征。方法:收集我院特发性视神经炎(IDON)患者71例(IDON组)、视神经脊髓炎(NMO)患者69例(NMO组)、有视神经病变的多发性硬化(MS)患者64例(MS组)共204例患者的临床资料。结果:本组中有17例MS、26例NMO由IDON转化而来,但脱髓鞘性视神经病变也可发生在中枢神经系统脱髓鞘事件之后或者同时发生。NMO容易合并血清免疫学异常,MS容易累及双侧视神经且以球后视神经病变多见,IDON和NMO视功能障碍更为严重。随访生存分析表明,合并颅内病灶或血清免疫学异常的IDON患者转化为MS或NMO的风险明显高于其他正常患者。结论:脱髓鞘性视神经病变的诊断要严格遵循诊断流程,正确鉴别这3种疾病对制定治疗方案延缓疾病进展、降低致残率及判断预后具有重要意义。  相似文献   
5.
6.
目的:利用光学相干断层扫描(OCT)检测复发缓解型多发性硬化(RRMS)与视神经脊髓炎谱系疾病(NMOSD)患者的视乳头周围视网膜神经纤维层(pRNFL)和黄斑区神经节细胞复合体(GCC)厚度,探讨疾病所致的视神经及轴突损伤情况。
  方法:回顾性病例对照分析。收集2014-08/2016-01首都医科大学附属北京天坛医院收治的 RRMS 患者60例、NMOSD-AQP4抗体阳性患者48例、NMOSD-AQP4抗体阴性患者35例及正常对照健康人群60例,通过 OCT 检测pRNFL(包括平均和上方、下方、鼻侧、颞侧四个象限)和GCC(包括平均和上方、下方两个象限)的厚度,采用单因素方差分析或秩和检验进行比较分析。
  结果:RRMS、NMOSD-AQP4抗体阳性及 NMOSD-AQP4抗体阴性组 pRNFL(平均和四个象限)及 GCC 厚度(平均和上方、下方)均较正常对照组减少,差异有统计学意义(P<0.01),其中 NMOSD-AQP4抗体阳性组的 pRNFL 及 GCC厚度最薄。组间 pRNFL 厚度比较:NMOSD-AQP4抗体阳性组与 RRMS 组相比,四个象限 pRNFL 厚度均明显变薄,差异有统计学意义(P<0.01);NMOSD-AQP4抗体阳性组与 NMOSD-AQP4抗体阴性组相比,下方、鼻侧、颞侧象限pRNFL 均更薄,差异有统计学意义( P <0.05),上方pRNFL 厚度无统计学差异(P>0.05);NMOSD-AQP4抗体阴性组和 RRMS 组相比,上方 pRNFL 厚度更薄,差异有统计学意义(P<0.05),下方、鼻侧、颞侧象限 pRNFL 厚度上无统计学差异(P>0.05)。组间 GCC 厚度比较:NMOSD-AQP4抗体阳性组上方、下方象限 GCC 厚度比 RRMS 组和NMOSD-AQP4抗体阴性组变薄明显,差异有统计学意义(P<0.05),NMOSD-AQP4抗体阴性组和 RRMS 组相比,上方 GCC 厚度更薄,差异有统计学意义( P<0.01),下方GCC 厚度无统计学差异(P>0.05)。
  结论:NMOSD-AQP4抗体阳性患者的轴突损伤最明显, RRMS 患者损伤最轻,而 NMOSD-AQP4抗体阴性患者介于二者之间,且与 RRMS 更为相似。  相似文献   
7.
目的探讨血清抗水通道蛋白-4(AQP-4)抗体应用于多发性硬化和视神经脊髓炎患者疾病诊断的临床意义。方法选择2013年3月至2014年10月该院收治的74例多发性硬化以及视神经脊髓炎患者,回顾性分析其临床资料,对血清中AQP-4抗体水平进行检查。结果视神经脊髓炎疾病患者各类型的阳性率分别为视神经炎(ON)51.89%、长节段横贯性脊髓炎(LETM)68.42%、视神经脊髓型多发性硬化(OSMS)57.14%、视神经脊髓炎(NMO)81.25%;而传统型多发性硬化(CMS)患者的AQP-4抗体检测为阴性。视神经脊髓炎疾病谱的患者脊髓受累均大于3个椎体节段;多发性硬化脊髓受累均小于3个节段。视神经脊髓炎多为急性或亚急性起病,多见于中年女性,发病年龄平均(42.1±13.9)岁,与CMS比较,差异无统计学意义(P0.05)。AQP-4抗体对于视神经脊髓炎敏感性为81.25%,特异性为100.00%。结论 AQP-4抗体可以作为视神经脊髓炎疾病以及多发性硬化鉴别诊断的重要指标。  相似文献   
8.
Neuromyelitis optica (NMO) is a severe inflammatory demyelinating disease with exacerbations involving recurrent or bilateral optic neuritis and longitudinally extensive transverse myelitis. Pulse steroid therapy is recommended as the initial, acute‐phase treatment for NMO. If ineffective, treatment with plasma exchange (PE) should commence. However, no evidence exists to support the effectiveness of PE long after the acute phase. Immunoadsorption therapy (IA) eliminates pathogenic antibodies while sparing other plasma proteins. With IA, side effects of PE resulting from protein substitution can be avoided. However, whether IA is effective for NMO remains unclear. We describe a patient with anti‐aquaporin‐4‐positive myelitis who responded to IA using a tryptophan polyvinyl alcohol gel column that was begun 52 days after disease onset following the acute phase. Even long after the acute phase when symptoms appear to be stable, IA may be effective and should not be excluded as a treatment choice. J. Clin. Apheresis 30:43–45, 2015. © 2014 Wiley Periodicals, Inc.  相似文献   
9.
10.
Neuromyelitis optica is an autoimmune inflammatory disorder of the central nervous system that preferentially targets the spinal cord and optic nerve. Following the discovery of circulating antibodies against the astrocytic aquaporin 4 (AQP4) water channel protein, recent studies have expanded our knowledge of the unique complexities of the pathogenesis of neuromyelitis optica and its relationship with the immune response. This review describes and summarizes the recent advances in our understanding of the molecular mechanisms underlying neuromyelitis optica disease pathology and examines their potential as therapeutic targets. Additionally, we update the most recent research by proposing major unanswered questions regarding how peripheral AQP4 antibodies are produced and their entry into the central nervous system, the causes of AQP4-IgG-seronegative disease, why peripheral AQP4-expressing organs are spared from damage, and the impact of this disease on pregnancy.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号