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101.
Alberto Rivero Luis Crovetto Lidia Lopez Ricardo Maselli Martín Nogus 《Muscle & nerve》1995,18(9):943-947
We performed single fiber electromyography (SFEMG) in the superior rectus and levator palpebralis (SR-LP) muscles of 17 patients with pure ocular myasthenia gravis (MG) and 9 controls. Thirteen patients were also assessed with SFEMG in the orbicularis oculi (OO) muscle. All the MG patients but none of the control subjects showed abnormal SFEMG jitter in the SR-LP muscles. On the other hand, only 62% of the MG patients had abnormal SFEMG jitter in the OO muscle. The procedure was well tolerated by the patients, and complications were minor. We conclude that SFEMG of the SR–LP muscles is a safe and highly sensitive technique for the diagnosis of ocular MG. © 1995 John Wiley & Sons, Inc. 相似文献
102.
采用异相氯磺化的方法,使聚乙烯(PE)中空纤维膜进行氯磺化反应,并将反应产物进一步水解和离子交换,可获得具有离子交换功能的磺化聚乙烯(SPE)中空纤维离子交换膜。应用渗透蒸发膜分离方法,研究磺化聚乙烯中空纤维离子交换膜对水/乙二醇混合物的分离效果。讨论了反离子的种类、渗透蒸发分离温度和水/乙二醇混合液的组成等对磺化聚乙烯中空纤维离子交换膜的分离效果的影响。 相似文献
103.
Lyme disease is a cause of illness involving multiple organ systems, including, in 10–15 % of cases, the nervous system.
Peripheral radiculoneuritis, cranial neuritis, encephalitis and myelitis are among the neurological manifestations found in
the second and third stages. We present the MRI findings in isolated oculomotor nerve involvement by Lyme disease and discuss
the differential diagnosis.
Received: 14 June 1995 Accepted: 16 January 1996 相似文献
104.
狗脊髓截除自体隐神经大网膜移植的初步观察 总被引:3,自引:0,他引:3
实验用6只狗于T13处切除脊髓8mm,局部用隐神经、大网膜移植。对照组6只狗单纯切除脊髓8mm。术后3个月、6个月实验组动物全部恢复到C/Ⅲ级功能,组织学切片见移植神经有不同程度存活,可记录到股四头肌、胫前肌电位。对照组动物仅达到0/0~A/I织功能,组织学切片见脊髓缺损处为结缔组织,诱电位波形消失。分析了影响脊髓神经功能恢复的原因。 相似文献
105.
神经移位修复臂丛神经根性撕脱伤 总被引:3,自引:2,他引:1
1987年7月~1994年6月,对21例臂丛神经根性撕脱伤采用神经移位修复。其中复合移位4组神经(膈神经、副神经、颈丛运动支、肋间神经)者1例,3组(膈神经、副神经、颈丛运动支)者6例,2组(膈神经、副神经)者9例,1组(膈神经或颈丛运动支或肋间神经)者5例。术中发现臂丛神经变异1例,对4例合并锁骨下动脉损伤者,在神经移位的同时进行血管修复,促进患肢的血液循环,有利于神经的康复。随访到19例,随访时间为8个月~6年2个月,优良率达73.7%。认为,神经移位术是修复神经根性撕裂伤的常规方法,合并血管损伤者也应同时修复,对促进神经功能恢复有利 相似文献
106.
54只大白鼠随机分三组,用不同方法修复坐骨神经缺损,术后60天和90天取材,作电生理、组织学和电镜观察的比较,结果表明:游离神经移植+血管植入方法和带血管蒂神经移植效果同样好,二者均显著优于单纯游离神经移植。 相似文献
107.
Alexandra A. Zaia Ricardo Delia Coletta Oslei P. Almeida Sergio R. P. Line 《European journal of oral sciences》1996,104(5-6):627-629
Atrophy of salivary glands may occur by ductal obstruction caused by calculus, infection or neoplastic processes, or as consequence of systemic diseases and aging. In the present work, we have used histochemical methods to study the expression of elastic and collagen fibers during experimental atrophy of the submandibular gland of mice. Glandular atrophy was accompanied by a rapid increase in collagen deposition in both septal and intralobular regions. The expression of elastic fibers was not significantly altered during atrophy; a discrete increase of elastic fibers was noted only around ductal structures. The results showed that experimental ductal obstruction is a useful in vivo model to study molecular events that take part in the remodeling of the extracellular matrix during atrophy of salivary glands. 相似文献
108.
本工作观察了乙酰胆硷(Ach)和电刺激迷走神经对0.6N HCl引起的胃粘膜出血性损伤的保护作用,发现皮下注射50μg/kg的氯化Ach和电刺激膈下迷走神经5min,可明显降低HCl引起的胃粘膜出血量,这一作用可被消炎痛及阿托品所阻断。提示这种保护作用是通过依赖于M-受体的内源性前列腺素。 相似文献
109.
Walter G. Sannita Luisa Lopez Lino Maggi Guido Rosadini 《Documenta ophthalmologica. Advances in ophthalmology》1988,70(1):89-96
L-acetylcarnitine is a compound with cholinergic properties and putative action on the visual system and the glucose metabolism. Ten healthy, emmertropic volunteers (age range: 21 to 28 years) were studied. Each subject was administered 5, 10, and 30 mg/kg acute intravenous doses of L-acetylcarnitine and matching placebo. Retinal oscillatory potentials to full-field flash stimulation were recorded before and 30, 60, and 120 min after administration. A systematic reduction of the implicit time of the P2 and N2 oscillatory potential components was observed after administration of the 10 and 30 mg/kg doses: significant changes were not evident at the 5 mg dose or after placebo. The latency reduction was significantly correlated with the postdrug increment of the L-acetylcarnitine plasma concentration. No other systematic modification in latency of amplitude was observed.The results were presented in part at the XXV I.S.C.E.V. Symposium, Sarasota (Florida), April 26–30, 1987. 相似文献
110.
Yaping Deng huashang Zhou Junguo DuanDepartment of Ophthalmology the Teaching Hospital of Chengdu College of TCM Chengdu China 《眼科学报》1994,(1)
Twenty five cases, including 26 eyes with retinal vein occlusion (RVO) were examined by means of the electro-oculogram. The results showed that 23 of the 26 eyes suffering from RVO exhibited abnormalities of the electro-oculogram (EOG). The potential difference and Arden ratio in the RVO eyes were lower than those in the normal eyes (P<0.01). The more the visual acuity of ill eyes was decreased, the higher the abnormal rate of EOG in ill eyes was. 14 eyes had the visual acuity less than 0.1, whose EOGs were abnortmal. Six eyes had the visual acuity from 0. 2 to 0. 4, in which the EOGs of 5 eyes were abnormal. Six eyes had the visual acuity more than 0. 5, a-mong which the EOGs of 4 eyes were abnormal. Based on the above observations, it may be considered that the circulatory disturbance resulting from RVO damages not only the internal layer but also the external layer of the retina. We suggest that EOG is a useful method for distingquishing lesions caused by RVO and may reflect the functional condition 相似文献