{"title":"Who needs a neurologist?","authors":"M A Goldberg","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14579525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The lupus anticoagulant (LA) is an antiphospholipid autoantibody that may predispose patients to thrombotic phenomena. Several authors have recently described the association of the LA with thrombotic cerebral disease. Speculation regarding the role of antiphospholipid antibodies in other neurologic diseases is increasing.
{"title":"The lupus anticoagulant in neurology.","authors":"R S el-Mallakh","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The lupus anticoagulant (LA) is an antiphospholipid autoantibody that may predispose patients to thrombotic phenomena. Several authors have recently described the association of the LA with thrombotic cerebral disease. Speculation regarding the role of antiphospholipid antibodies in other neurologic diseases is increasing.</p>","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14269367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The effect of the opiate antagonist naloxone on both the neurological deficit and regional cortical blood flow after middle cerebral artery occlusion in the cat was investigated. In animals with mild symptoms, naloxone did not consistently produce a significant behavioral effect. In all cats with neurological deficits, including hemiplegia or severe hemiparesis, 2 mg/kg naloxone administered intravenously 4 h after the ischemic lesion produced a reversal of neurological symptoms. This effect began within 2 min following naloxone injection and lasted for approximately 20 min. Animals were then anesthetized and cortical blood flow was measured by the hydrogen clearance method. Average cortical blood flow on the side of the occlusion was 50% that of the control side. Naloxone produced a significant additional decrease of 19.5% in cortical blood flow in the ischemic hemisphere, whereas no effect on blood flow on the control side was noted. Thus, although naloxone appears to temporarily reverse the severe neurological deficits resulting from middle cerebral artery occlusion in the cat, this effect appears to be accompanied by a decrease in local blood flow to the ischemic cortex.
{"title":"Focal cerebral ischemia in the cat: effect of naloxone on cortical blood flow and neurological deficit following middle cerebral artery occlusion.","authors":"R Levy, P Feustel, J Severinghaus, Y Hosobuchi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The effect of the opiate antagonist naloxone on both the neurological deficit and regional cortical blood flow after middle cerebral artery occlusion in the cat was investigated. In animals with mild symptoms, naloxone did not consistently produce a significant behavioral effect. In all cats with neurological deficits, including hemiplegia or severe hemiparesis, 2 mg/kg naloxone administered intravenously 4 h after the ischemic lesion produced a reversal of neurological symptoms. This effect began within 2 min following naloxone injection and lasted for approximately 20 min. Animals were then anesthetized and cortical blood flow was measured by the hydrogen clearance method. Average cortical blood flow on the side of the occlusion was 50% that of the control side. Naloxone produced a significant additional decrease of 19.5% in cortical blood flow in the ischemic hemisphere, whereas no effect on blood flow on the control side was noted. Thus, although naloxone appears to temporarily reverse the severe neurological deficits resulting from middle cerebral artery occlusion in the cat, this effect appears to be accompanied by a decrease in local blood flow to the ischemic cortex.</p>","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14579516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Camillo Golgi is well-known for his development of a staining technique that permitted profound contributions in histology. He is also well-known as the champion of a theory describing the organization of the nervous system as a reticular network. He shared the 1906 Nobel prize with Ramon y Cajal, who professed an antagonistic neuron theory which ultimately proved correct. We recently came across an original reprint of Golgi's work from an obscure reference. It deals with an important variation in the famous Golgi stain. In translating this original work into English, we present a piece of history, a comparison of Golgi's staining techniques, and a glimpse into Golgi's peculiar style and personality.
卡米洛·高尔基因其染色技术的发展而闻名,该技术在组织学上做出了深远的贡献。他还以倡导一种理论而闻名,该理论将神经系统的组织描述为网状网络。他与拉蒙·卡哈尔(Ramon y Cajal)分享了1906年的诺贝尔奖,后者提出的拮抗神经元理论最终被证明是正确的。最近,我们从一个隐晦的参考文献中发现了高尔基作品的原版再版。它涉及著名的高尔基染色的一个重要变化。在将这部原著翻译成英文的过程中,我们展示了一段历史,比较了高尔基的染色技术,并瞥见了高尔基独特的风格和个性。
{"title":"The intracellular reticulum of cortical neurons shown by Golgi's \"other method\".","authors":"A A Sadun, L O Sadun","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Camillo Golgi is well-known for his development of a staining technique that permitted profound contributions in histology. He is also well-known as the champion of a theory describing the organization of the nervous system as a reticular network. He shared the 1906 Nobel prize with Ramon y Cajal, who professed an antagonistic neuron theory which ultimately proved correct. We recently came across an original reprint of Golgi's work from an obscure reference. It deals with an important variation in the famous Golgi stain. In translating this original work into English, we present a piece of history, a comparison of Golgi's staining techniques, and a glimpse into Golgi's peculiar style and personality.</p>","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13603665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Several months after onset of typical stroke syndromes, two patients were found to harbor a glioblastoma multiforme in the area of infarction. Arteriographic and late CT studies suggested that one neoplasm caused parenchymal compressive occlusion of a sylvian branch mimicking embolism and the other entwined the origin of the middle cerebral artery in the leptomeninges simulating atherothrombosis.
{"title":"Stroke associated with glioblastoma.","authors":"B H Dobkin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Several months after onset of typical stroke syndromes, two patients were found to harbor a glioblastoma multiforme in the area of infarction. Arteriographic and late CT studies suggested that one neoplasm caused parenchymal compressive occlusion of a sylvian branch mimicking embolism and the other entwined the origin of the middle cerebral artery in the leptomeninges simulating atherothrombosis.</p>","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14961589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Heterogeneity and prognosis in dementia of the Alzheimer type.","authors":"R Mayeux, Y Stern, M Sano","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14961596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A well-defined degenerative neurological condition has been associated with cholestatic liver disease in children. This syndrome, heralded by gait and limb ataxia, areflexia, and proprioceptive and vibratory sensory loss, has also been observed in abetalipoproteinemia (Bassen-Kornzweig syndrome), cystic fibrosis, and intestinal malabsorption states. A significant body of evidence suggests that vitamin E (alpha-tocopherol) deficiency is in large part responsible for this condition. In this article, a patient manifesting this syndrome is reported, and the current status of the vitamin E deficiency state is reviewed.
{"title":"Neurologic complications of vitamin E deficiency: case report and review of the literature.","authors":"M J Morrow","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A well-defined degenerative neurological condition has been associated with cholestatic liver disease in children. This syndrome, heralded by gait and limb ataxia, areflexia, and proprioceptive and vibratory sensory loss, has also been observed in abetalipoproteinemia (Bassen-Kornzweig syndrome), cystic fibrosis, and intestinal malabsorption states. A significant body of evidence suggests that vitamin E (alpha-tocopherol) deficiency is in large part responsible for this condition. In this article, a patient manifesting this syndrome is reported, and the current status of the vitamin E deficiency state is reviewed.</p>","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15032525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abstracts of the twenty-second annual meeting of the Federation of Western Societies of Neurological Sciences. February 21-24, 1985, San Diego, California.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14961588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The electroencephalogram in Alzheimer disease.","authors":"H B McIntyre","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14961590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
There is growing evidence for parallel processing of visual information. Visual information, spatially or temporally distinct, is transmitted to various regions of the brain. This paper presents clinical and anatomical evidence for parallel processing in the human visual system. The neuro-ophthalmologist often has psychophysical evidence for the separation of visual functions. Our own investigations have demonstrated that brightness sense and other visual functions may be impaired out of proportion to visual acuity in diseases of the optic nerve. Classes of retinal ganglion cells have been morphologically and physiologically described in several experimental animals. No such classification of retinal ganglion cell types has been made in man. However, psychophysical and retinal electrophysiological human studies suggest the segregation of human retinal ganglion cells into classes which subserve different functions. A new staining method (PPD) has made it possible to directly study the visual pathways in man. With this method, we have documented several previously undescribed human visual pathways to different brain visual nuclei: the lateral geniculate nucleus, the pretectum, the superior colliculus, the pulvinar, and three nuclei of the hypothalamus (SCN, PVN, SON). We have also developed a method which permits the accurate and rapid measurement of human retinal ganglion cell axon diameters through the optic nerve and through the fascicles of optic fibers entering several of these recently described visual nuclei. There is evidence for three size classes of axons which differentially distribute to the visual nuclei. These studies emphasize the need for overcoming the constraints of thinking that vision is the same as seeing.(ABSTRACT TRUNCATED AT 250 WORDS)
{"title":"Vision: a multimodal sense.","authors":"A A Sadun","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>There is growing evidence for parallel processing of visual information. Visual information, spatially or temporally distinct, is transmitted to various regions of the brain. This paper presents clinical and anatomical evidence for parallel processing in the human visual system. The neuro-ophthalmologist often has psychophysical evidence for the separation of visual functions. Our own investigations have demonstrated that brightness sense and other visual functions may be impaired out of proportion to visual acuity in diseases of the optic nerve. Classes of retinal ganglion cells have been morphologically and physiologically described in several experimental animals. No such classification of retinal ganglion cell types has been made in man. However, psychophysical and retinal electrophysiological human studies suggest the segregation of human retinal ganglion cells into classes which subserve different functions. A new staining method (PPD) has made it possible to directly study the visual pathways in man. With this method, we have documented several previously undescribed human visual pathways to different brain visual nuclei: the lateral geniculate nucleus, the pretectum, the superior colliculus, the pulvinar, and three nuclei of the hypothalamus (SCN, PVN, SON). We have also developed a method which permits the accurate and rapid measurement of human retinal ganglion cell axon diameters through the optic nerve and through the fascicles of optic fibers entering several of these recently described visual nuclei. There is evidence for three size classes of axons which differentially distribute to the visual nuclei. These studies emphasize the need for overcoming the constraints of thinking that vision is the same as seeing.(ABSTRACT TRUNCATED AT 250 WORDS)</p>","PeriodicalId":77682,"journal":{"name":"Bulletin of clinical neurosciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14961594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}