Abstract:
:Alzheimer's disease (AD) is a major cause of dementia. Characteristic neuropathological features of AD include neurofibrillary tangles, senile plaques, amyloid angiopathy and microvascular atrophy. The ultra-structure of the microvascular atrophy in AD and its pathogenetic significance have not been defined. This report presents an analysis of ultrastructural and morphometric features in the cerebral microvasculature of five brain biopsy specimens from AD patients. The cerebral microvasculature normally constitutes the blood-brain barrier (BBB), characterized by interendothelial tight junctions, few pinocytotic vesicles and high mitochondrial content in endothelial cells. In the AD brain biopsy tissue analyzed in the present article, data for endothelial cells were expressed as percentage of cytoplasmic area occupied by the respective organelles. The values for vesicular content ranged from 0.49% to 1.17% and were inversely correlated with mitochondrial content, which ranged from 7.04% to 2.88%. These results indicate decreased mitochondrial content and increased pinocytotic vesicles as compared to values obtained previously in endothelium from multiple sclerosis patients and in laboratory animals. Other findings such as accumulation of collagen in vascular basement membranes and focal necrotic changes in endothelial cells are further indications of BBB disruption. These data, together with earlier reports, suggest that dysfunction of the BBB is a characteristic feature of AD.
journal_name
Acta Neuropatholjournal_title
Acta neuropathologicaauthors
Claudio Ldoi
10.1007/s004010050386subject
Has Abstractpub_date
1996-01-01 00:00:00pages
6-14issue
1eissn
0001-6322issn
1432-0533journal_volume
91pub_type
杂志文章abstract::An unresolved issue in the study of demyelinating disease is whether blood-brain barrier damage is dependent upon the migration of inflammatory cells into the central nervous system (CNS). In a study of experimental autoimmune encephalomyelitis (EAE) in rabbits, a freeze-dried, paraffin-embedded tissue technique was e...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00692851
更新日期:1987-01-01 00:00:00
abstract::Axons of the peripheral nervous system (PNS) are reduced in caliber in response to the experimental diabetic state. The cause of this reduced axonal size is disputed. Various theories include (a) axonal dwindling, (b) inhibition of growth, and (c) shrinkage due to serum hyperosmolarity. This study was designed to dire...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00688637
更新日期:1985-01-01 00:00:00
abstract::A 48-year-old man with dural arteriovenous malformation (AVM) is reported. Radiologically, the dural AVM was demonstrated mainly in the region of the left transverse sinus. Postmortem examination revealed dural AVM involving the bilateral transverse, superior sagittal and straight sinuses. In addition, numerous malfor...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00307635
更新日期:1990-01-01 00:00:00
abstract::Ballooned neurons are histological features of several neurodegenerative diseases of the central nervous system. We describe the immunocytochemical staining of ballooned neurons in Pick's disease, unclassified dementia, corticonigral degeneration, pigment-spheroid degeneration and Alzheimer's disease. In all of these ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00688042
更新日期:1986-01-01 00:00:00
abstract::The quadriceps femoris muscles of experimental allergic myositis, in strain 13 guinea pigs immunised with rabbit myosin B fraction, were subjected to histochemical, immunohistochemical and electron microscopic studies. They demonstrated a variety of degenerative changes of muscle fibres, infiltration of lymphocytes an...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00692845
更新日期:1987-01-01 00:00:00
abstract::An 18 month old cat had a 6 month history of abnormal high stepping gait, ataxia, muscle twitching and loss of sensory perception. The clinical course was interrupted by several episodes of temporary remission. The essential pathological features were those of a polyradiculoneuritis with segmental demyelination, focal...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00689561
更新日期:1978-01-19 00:00:00
abstract::Microglia are long-living resident immune cells of the brain, which secure a stable chemical and physical microenvironment necessary for the proper functioning of the central nervous system (CNS). These highly dynamic cells continuously scan their environment for pathogens and possess the ability to react to damage-in...
journal_title:Acta neuropathologica
pub_type: 杂志文章,评审
doi:10.1007/s00401-015-1524-y
更新日期:2016-03-01 00:00:00
abstract::Inflammatory processes have been implicated in the formation of senile plaques in the cerebral cortex of patients with dementia of the Alzheimer type (DAT), since several inflammation-induced proteins are present within these plaques. The relation between inflammatory components and other amyloid beta protein (A beta)...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010050474
更新日期:1996-01-01 00:00:00
abstract::Psammoma bodies in meningocytic whorls were investigated by electron microscopy. In some whorls, connective tissue fibers were seen and membrane-bound vesicles were contiguous to degenerated cells. Some small vesicles, 0.1 to 0.5 micron in diameter, were outlined by plasma membrane (matrix vesicles), other larger ones...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00686081
更新日期:1986-01-01 00:00:00
abstract::Immunofluorescence and immunogold labelling were used to localise the 43-kDa dystrophin-associated glycoprotein (43DAG) of the dystrophin-glycoprotein complex in control and Duchenne muscular dystrophy (DMD) biopsies. In control muscle 43DAG was localised by immunofluorescence to the periphery of the fibre and, by imm...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00313603
更新日期:1994-01-01 00:00:00
abstract::The suprascapular nerve from 14 horses, which had no clinical evidence of spinatus muscle atrophy, were obtained to determine whether the nerve was sub-clinically compressed at the scapular edge. The nerves were divided into three portions, proximal and distal to the scapular edge and as it reflected around it. In nin...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00688338
更新日期:1987-01-01 00:00:00
abstract::The accumulation of calcium in the hippocampal and thalamic vascular endothelium and the perivascular space was detected histochemically by means of the pyroantimonate technique 30, 60 and 120 min after systemic kainic acid administration. An increased number of calcium pyroantimonate deposits was found in the endothe...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00685971
更新日期:1986-01-01 00:00:00
abstract::We evaluated by in situ nick end labeling the presence of apoptotic glial cells in the spinal cord of rats which have sustained a moderate and severe compression injury at the level of T8-9, resulting in a severe but reversible paraparesis and irreversible paraplegia, respectively. In a previous investigation we found...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010051112
更新日期:1999-11-01 00:00:00
abstract::VM mice were inoculated by intracerebral and intraperitoneal routes with brain homogenates containing the 87V strain of scrapie. The distribution and numbers of plaques were found for the parietal cortex, cingulate cortex, corpus callosum and hippocampus/dentate in coronal sections cut at the level of the thalamus and...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00688311
更新日期:1986-01-01 00:00:00
abstract::Accumulation of the tau protein in fibrillar intracellular aggregates is a defining feature of multiple neurodegenerative diseases collectively referred to as tauopathies. Despite intensive study of tau, there is limited information on the formation and clearance dynamics of tau inclusions. Using rAAV vectors to media...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-021-02264-9
更新日期:2021-01-26 00:00:00
abstract::This ultrastructural study deals with the synapses of primary dendrites of the anterior horn neurons in the lower lumbar spinal cords of seven patients with amyotrophic lateral sclerosis (ALS) who had mild neuronal depletion. Specimens from seven age-matched, neurologically normal individuals served as controls. In ea...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010050426
更新日期:1996-01-01 00:00:00
abstract::In a large series of 116 cortical resections for treatment of medically intractable epilepsy, 10 glial hamartomas and 11 neuronoglial malformative lesions were found. Glial hamartomas were astrocytic in 3 cases, oligodendrocytic in 6 and mixed oligoastrocytic in 1. Neuronoglial lesions corresponded to "focal cortical ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00296190
更新日期:1994-01-01 00:00:00
abstract::Newborn rats were exposed to daily intraperitoneal injections of 10 mg lead nitrate per kg body weight for the first 15 postnatal days. The growth and mortality of the lead-exposed animals did not differ from their control litter-mates, injected with vehicle only. In our previous studies, focal hemorrhages and spongy ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00687071
更新日期:1987-01-01 00:00:00
abstract::Thirty-three rectus superior extraocular muscles from 23 autopsy cases, all over 60 years, were examined. Eosinophilic inclusions (Hirano bodies) were observed in all the muscles; they were stained deep red by Masson's trichrome stain and were positive for protein stain. They consisted of a collection of filamentous s...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00691883
更新日期:1983-01-01 00:00:00
abstract::The gastrocnemius muscles of 3 groups of 10 rats, sacrified 5, 7, and 12 days respectively, following tenotomy, were submitted to different types of fixation, fixative and embedding. The occurrence of target fibres is shown not to be an artefact due to the histological procedures. Further examination demonstrates that...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00690981
更新日期:1978-05-24 00:00:00
abstract::Neuronal and glial cytoplasmic inclusions (NCIs and GCIs), which contain alpha-synuclein as a major component, are characteristic cytopathological features of multiple system atrophy (MSA). We report MSA of 19 years' duration in a 73-year-old woman. Her initial symptom was parkinsonism, with dementia appearing about 8...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010000292
更新日期:2001-03-01 00:00:00
abstract::A unique pathological finding of astrocytes was observed in the brain of a 20-year-old man who had severe physical and mental retardation. The brain was malformed showing micropolygyria in several cortical areas. A large number of hypertrophic astrocytes with eosinophilic granular substances in their cytoplasm were fo...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00427225
更新日期:1992-01-01 00:00:00
abstract::To clarify the role of prostaglandins in peripheral nerve demyelination, we examined the expression of cyclooxygenase-2 (COX-2) using selected nerve specimens from patients with chronic inflammatory demyelinating polyneuropathy. COX-2 protein was up-regulated in macrophages causing active demyelination. In situ hybrid...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010000279
更新日期:2001-02-01 00:00:00
abstract::Primary extradural ependymomas are rare neoplasms usually of the myxopapillary type. Reports on malignant primary extradural ependymal tumors are exceptionally rare. We here report on a 3-year-old boy with Schinzel-Giedion syndrome (SGS), who presented with lumbar spina bifida occulta and a progressive extraspinal les...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-006-0179-0
更新日期:2007-03-01 00:00:00
abstract::Since we reported a case of acute relaxant-steroid myopathy (ARSM) in 1994, we continued histological studies and compared the findings with those in a case of corticosteroid myopathy (CM). It was revealed that (1) dystrophin, spectrin, beta dystroglycan, and sarcoglycans on the cell surface were decreased, (2) regula...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010051022
更新日期:1999-05-01 00:00:00
abstract::Temozolomide (TMZ) increases the overall survival of patients with glioblastoma (GBM), but its role in the clinical management of diffuse low-grade gliomas (LGG) is still being defined. DNA hypermethylation of the O (6) -methylguanine-DNA methyltransferase (MGMT) promoter is associated with an improved response to TMZ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-015-1403-6
更新日期:2015-04-01 00:00:00
abstract::Several missense mutations within exons 1, 2, 4 and 5 of the gene for Cu/Zn-binding superoxide dismutase (SOD1) have been discovered to be involved in the development of chromosome 21q-linked familial amyotrophic lateral sclerosis (FALS). We describe here an autopsied patient with FALS, in whom we have recently identi...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00294513
更新日期:1994-01-01 00:00:00
abstract::The fine structures of two pineal parenchymal neoplasms has been described. The tumors contained a predominance of small, poorly differentiated cells with prominent nuclei and scanty cytoplasm. These cells were similar to those found in medulloblastomas, primitive cerebral neuroectodermal tumors, and fetal cerebellum ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00699239
更新日期:1981-01-01 00:00:00
abstract::The neurone-centred view of the past disregarded or downplayed the role of astroglia as a primary component in the pathogenesis of neurological diseases. As this concept is changing, so is also the perceived role of astrocytes in the healthy and diseased brain and spinal cord. We have started to unravel the different ...
journal_title:Acta neuropathologica
pub_type: 杂志文章,评审
doi:10.1007/s00401-015-1513-1
更新日期:2016-03-01 00:00:00
abstract::A man of 75 years of age had had lightning pains in the legs for 8 years. Clinical examination demonstrated mild pyramidal signs and involvement of the posterior columns. A morphine pump was placed in the epidural space in the lumbar region to treat the pain. He died two weeks later from a massive pulmonary embolism. ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00695497
更新日期:1987-01-01 00:00:00