Abstract:
:The cerebrovascular lesions of severe chronic hypertension were studied by light microscopy in perfusion-fixed, subserially sectioned brains from stroke-prone spontaneously hypertensive rats (SHRSP). The leakage and spread of plasma proteins were visualized by immunohistochemical detection of extravasated fibrinogen and by using an exogenous marker (Evans blue injected i.v.) for blood-brain barrier (BBB) dysfunction. In most SHRSP the hypertension did not lead to major BBB lesions in spite of a mean arterial pressure around 200 mm Hg at 6-9 months of age. Multifocal BBB damage occurred in a minor group of SHRSP, particularly within the cortex and the deep gray matter. A close spatial correlation was found between the leakage-spread of plasma constituents and the neuropathologic alterations. Fibrinoid degeneration of penetrating arterioles was found within the leakage sites. The surrounding gray matter showed petechial hemorrhages and abundant proteinaceous exudates rich in antifibrinogen-positive material. The current leakage of Evans blue and wide spread of fibrinoid substances suggested long-lasting damage to the BBB. Most neurons within the edematous gray matter had well preserved nuclei surrounded by a rim of cytoplasm with ill-defined outline as if vacuolation or lysis of the peripheral cytoplasm had occurred. The sponginess of the tissue progressed in severe cases to formation of necrotic cysts. Condensed acidophilic neurons were seen in the border zone between the edematous and more compact gray matter. The appearance and distribution of the gray matter lesions deviated in many respects from those commonly seen in regional ischemic infarcts. The fibrin thrombi found close to the cysts might be regarded as secondary events. The extensive spread of antifibrinogen-positive material within the white matter seemed to originate mainly from the chronic leakage sites in the gray matter. Increased number of large astrocytes were seen within the leakage sites and along the spreading pathways for the edema constituents. The white matter showed a rarefied texture with widely dispersed nerve fiber tracts, volume expansion, and occasional cyst formation. The results indicate a crucial pathophysiologic role for the egress, spread, and accumulation of vasogenic edema in the development of the cerebrovascular lesions in SHRSP.
journal_name
Acta Neuropatholjournal_title
Acta neuropathologicaauthors
Fredriksson K,Auer RN,Kalimo H,Nordborg C,Olsson Y,Johansson BBdoi
10.1007/BF00690831subject
Has Abstractpub_date
1985-01-01 00:00:00pages
284-94issue
4eissn
0001-6322issn
1432-0533journal_volume
68pub_type
杂志文章abstract::Alterations in sphingolipid metabolism are described to contribute to various neurological disorders. We here determined the expression of enzymes involved in the sphingomyelin cycle and their products in postmortem brain tissue of multiple sclerosis (MS) patients. In parallel, we investigated the effect of the sphing...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-012-1014-4
更新日期:2012-09-01 00:00:00
abstract::The contribution of leukocyte apoptosis to the resolution of meningeal inflammation in bacterial meningitis was studied in the cerebrospinal fluid (CSF) and in meningeal infiltrates of humans and rabbits by in situ tailing, flow cytometry, agarose gel electrophoresis, and electron microscopy. In humans, the rate of ap...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010050921
更新日期:1998-11-01 00:00:00
abstract::We report a patient who showed pathological features of both multiple system atrophy (MSA) and progressive supranuclear palsy (PSP) at autopsy. The clinical features included severe cerebellar ataxia, autonomic failure, and rigid-akinetic parkinsonism. The clinical diagnosis was MSA. Pathological examination showed se...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010100433
更新日期:2002-01-01 00:00:00
abstract::Macroautophagy is a dynamic process whereby cytoplasmic components are initially sequestered within autophagosomes. Recent studies have shown that the autophagosome membrane can selectively recognize ubiquitinated proteins and organelles through interaction with adapter proteins such as p62 and NBR1. Both proteins are...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-012-0975-7
更新日期:2012-08-01 00:00:00
abstract::The dynamics of cell-associated Concanavalin A (Con A) in astrocytes of the newborn rat (RNA), the rat glioma (AC), and the human glioblastoma (GB) were studied in vitro by fluorescence and electron microscopy. Con A receptors on the cell surface were seen usually as a continuous thin layer, and Con A accumulations in...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00690804
更新日期:1982-01-01 00:00:00
abstract::Immunohistochemical studies of monoamine neurons were performed to evaluate toxic effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on young adult mice and compare them with those of their offspring. Mice, 9-11 weeks old (C57BL/6J), injected subcutaneously with a large dose of MPTP (17 mg/kg per day) duri...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00294662
更新日期:1989-01-01 00:00:00
abstract::The spatial patterns of diffuse, primitive, classic (cored) and compact (burnt-out) subtypes of beta/A4 deposits were studied in coronal sections of the frontal lobe and hippocampus, including the adjacent gyri, in nine cases of Alzheimer's disease (AD). If the more mature deposits were derived from the diffuse deposi...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00454896
更新日期:1993-01-01 00:00:00
abstract::The original version of this article unfortunately contained a mistake. The Panel A in the published figure 5 is incorrect. The corrected Figure 5 is placed in the following page. ...
journal_title:Acta neuropathologica
pub_type: 已发布勘误
doi:10.1007/s00401-019-02092-y
更新日期:2020-01-01 00:00:00
abstract::In hereditary myopathy of the diaphragmatic muscles in Holstein-Friesian cattle, the largest number of acidophilic intracytoplasmic inclusions was found in the myocardium. These inclusions, which were oval and measured 12-15 microm in the transverse sections, were characterized by a dense, amorphous zone, and a relati...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010050972
更新日期:1999-02-01 00:00:00
abstract::The colocalization of beta amyloid protein with the enzymes acetyl- and butyrylcholinesterase was assessed using immunocytochemistry for beta amyloid protein and a sensitive histochemical technique for cholinesterases. In non-demented aged and Alzheimer's disease brains, double-stained sections for cholinesterases and...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00334445
更新日期:1993-01-01 00:00:00
abstract::We present here an unusual case of papillary neuroepithelial tumor of the pineal region. The patient was a 29-year-old female who presented with headaches. A computed tomography scan revealed a tumorous lesion at the pineal region and hydrocephalus. The resected tumor was composed of columnar and cuboidal cells showin...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-004-0898-z
更新日期:2004-10-01 00:00:00
abstract::Seven patients with the typical clinical picture and muscle biopsy findings of classical Werdnig-Hoffmann disease showed Wallerian degeneration in their biopsied sural nerves. In dorsal root ganglia of one patient there were residual nodules and several chromatolytic neurons. By electron microscopy the changes of chro...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00690973
更新日期:1978-05-24 00:00:00
abstract::Detailed neuropathologic and immunohistologic analysis of a case of serologically and polymerase chain reaction-confirmed human immunodeficiency virus type I (HTLV-I)-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is reported in a 73-year-old North American black woman. In addition to the usual neuropath...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00304136
更新日期:1993-01-01 00:00:00
abstract::We studied the muscle biopsy from an asymptomatic patient with high serum creatine kinase values. Subsarcolemmal and intermyofibrillar granular inclusions were seen at the light microscopy level. Ultrastructural observation showed clusters of cylindrical spirals (CS). CS are nonspecific, morphological finding, so far ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00318582
更新日期:1995-01-01 00:00:00
abstract::Several cases of progressive multifocal leukoencephalopathy (PML) have been associated with simian virus 40 (SV40), rather than with JC virus (JCV), the polyomavirus originally isolated from PML tissue. PML has, therefore, been defined as a demyelinating syndrome with possible multiple viral etiologies. Tissues from t...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010050894
更新日期:1998-09-01 00:00:00
abstract::Multiple different pathological protein aggregates are frequently seen in human postmortem brains and hence mixed pathology is common. Mixed dementia on the other hand is less frequent and neuropathologically should only be diagnosed if criteria for more than one full blown disease are met. We quantitatively measured ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-015-1406-3
更新日期:2015-05-01 00:00:00
abstract::Mutations in the sarcomeric protein titin, encoded by TTN, are emerging as a common cause of myopathies. The diagnosis of a TTN-related myopathy is, however, often not straightforward due to clinico-pathological overlap with other myopathies and the prevalence of TTN variants in control populations. Here, we present a...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-020-02257-0
更新日期:2021-01-15 00:00:00
abstract::Muscle biopsy samples from five patients with cytoplasmic body myopathy (CBM) were investigated by immunohistochemical (antibodies to desmin, actin, dystrophin, spectrin, alpha actinin and utrophin), immunoelectron microscopic (antibodies to desmin, actin and dystrophin) and biochemical (desmin, dystrophin, actin and ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00294314
更新日期:1995-01-01 00:00:00
abstract::Charcot-Marie-Tooth disease type 1 B (CMT1B) is a demyelinating neuropathy caused by mutations in the myelin protein zero (P0) gene (MPZ). A few cases of CMT1B were recently found to be characterized by focally folded myelin sheaths in nerve biopsy specimens; the significance of this association is unknown. Here, we d...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004019900175
更新日期:2000-09-01 00:00:00
abstract::A study of a muscle biopsy has provided evidence of storage involvement of the skeletal muscle fibres in Fabry's disease. In the endothelial cells of the capillaries, the inclusions were more abundant and pleomorphic. Muscle satellite cells were spared. In the sensory nerve biopsy, the perineurial and endothelial cell...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00688064
更新日期:1977-06-15 00:00:00
abstract::Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) and a phenotypically similar recessive condition (CARASIL) have emerged as important genetic model diseases for studying the molecular pathomechanisms of cerebral small vessel disease (SVD). CADASIL, the most frequent ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-018-1853-8
更新日期:2018-07-01 00:00:00
abstract::Keratan sulphate proteoglycan (KSPG) is a developmentally regulated barrier molecule, directing axonal growth during central nervous system (CNS) formation. The possible re-expression and functional significance of KSPG in preventing axon regeneration following spinal cord injury (SCI) is poorly understood. In the pre...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-002-0589-6
更新日期:2002-12-01 00:00:00
abstract::Most cases of frontotemporal lobar degeneration (FTLD) are characterized by abnormal intracellular accumulation of either tau or TDP-43 protein. However, in ~10% of cases, composed of a heterogenous collection of uncommon disorders, the molecular basis remains to be uncertain. We recently discovered that the pathologi...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-010-0764-0
更新日期:2011-02-01 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::PICALM, a clathrin adaptor protein, plays important roles in clathrin-mediated endocytosis in all cell types. Recently, genome-wide association studies identified single nucleotide polymorphisms in PICALM gene as genetic risk factors for late-onset Alzheimer disease (LOAD). We analysed by western blotting with several...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-013-1111-z
更新日期:2013-06-01 00:00:00
abstract::Apoptosis of neurons and glial cells has been shown to occur in the brain of patients with the acquired immune deficiency syndrome (AIDS) and was postulated as contributing to brain atrophy and white matter damage in these patients. Since apoptotic events may be induced by the Fas-Fas ligand (FasL) system, we analyzed...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s004010051094
更新日期:1999-10-01 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::Specific pathological hallmarks have been described in amyotrophic lateral sclerosis (ALS), which include motor neuronal loss, Bunina bodies (BBs) and skein like inclusions (SLIs). We investigated the relation between these three lesions in the cervical and lumbar anterior horns and the hypoglossal nuclei of 20 ALS pa...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-001-0507-3
更新日期:2002-06-01 00:00:00
abstract::The ultrastructure of the curly fibers was examined by the transmission and immunoelectron microscopy as well as by the rapid-freeze, deep-etch and replica method. The curly fibers consisted mainly of paired helical filaments (PHF) in the neuropils, both pre- and post-synaptic. On the deep-etch replicas, PHF in the ne...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00334498
更新日期:1990-01-01 00:00:00
abstract::Neurofibromas represent one of the hallmarks of neurofibromatosis 1 (NF1) patients. Tumor progression of neurofibromas to malignant peripheral nerve sheath tumors (MPNST) is a frequent and life threatening complication. To learn more about processes involved in malignant transformation, we evaluated differential gene ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-003-0797-8
更新日期:2004-02-01 00:00:00