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Properties of virions and ribonucleoproteins of Venezuelan equine encephalomyelitis virus.

The physicochemical properties of Venezuelan equine encephalomyelitis (VEE) virus and of its ribonucleoprotein (RNP) were studied. Upon purification in a discontinuous or linear sucrose gradient, the losses of infectivity were small (25%), and 96% of cellular proteins were removed. The purified virus was homogeneous with respect of sedimentation rate (s20, w = 265 S). The CsCl gradient was unsuitable for purification of infectious virus because the latter was destroyed at high CsCl concentrations. Buoyant density of the virus in CsCl after formaldehyde fixation was 1.21--1.22 g/cm3. Treatment …

On the development of CNS lesions in natural canine distemper encephalomyelitis.

Acute lesions within spinal cord white matter have been studied by light and electron microscopy in 3 dogs suffering from the acute form of canine distemper encephalomyelitis (CDE). Prominent features of these lesions were viral inclusions, giant cell formation, cellular degeneration, myelin breakdown and phagocytic activity by cells believed to be derived from local glia. The viral inclusions occurred in giant cells, many astrocytes, macrophages and occasional oligodendroglia. Only suggestions of active viral replication from cell membranes were present. On the basis of the above features, th…

Effect of NO 2 on airborne Venezuelan equine encephalomyelitis virus.

Studies were conducted to determine the effect of nitrogen dioxide (NO(2)) on aerosol survival and biological decay rate of Venezulean equine encephalomyelitis (VEE) virus and spores of Bacillus subtilis var. niger. The NO(2) concentrations used in the experiments were 0.5, 5, and 10 ppm at 24 C and 85% RH. The survival of airborne VEE virus disseminated as particles 1 to 5 mum in diameter was significantly influenced by the presence of 5 ppm of NO(2). At this concentration, the biological decay rate increased threefold and the aerosol recovery and aerosol survival of the VEE virus were signif…

Host influence on the characteristics of Venezuelan equine encephalomyelitis virus.

Heydrick, Fred P. (Fort Detrick, Frederick, Md.), Ralph F. Wachter, and Henry J. Hearn, Jr. Host influence on the characteristics of Venezuelan equine encephalomyelitis virus. J. Bacteriol. 91:2343-2348. 1966.-Alterations in plaque size, virulence, and lipid content of Venezuelan equine encephalomyelitis (VEE) virus were examined for possible interrelationships among these properties during 10 serial passages in embryonated eggs, suckling mice, chick embryo fibroblasts, and L cells. The chick embryo host maintained the same large-plaque and virulence properties of the virus through 10 passages…

Идентификация сигнатуры, связанной с микроглией, в экспериментальном аутоиммунном энцефаломиелите.

Множественный склероз (MS) — хроническое нервно-воспалительное расстройство, характеризующееся демиелинизацией и иммунной диагностикой, и микроглией играет центральную роль в прогрессии заболеваний. Несмотря на это, конкретные микроглиальные генные сигнатуры, способствующие НР, по-прежнему недостаточно характеризуются. МЕТОДЫ: Мы использовали экспериментальную аутоиммунную модель мышьяка-энцефаломиэлита (EAE) и провели последовательность RNA для выявления дифференциально выраженных RNA (DEmRNA), длинных некодирующих RNA (DElncRNA), циркулярных RNA (DEcirRNA) и микроRNA (DEmiRNA) в микроглии. П

Совпадение в аннотации оригинала
BACKGROUND: Multiple sclerosis (MS) is a chronic neuroinflammatory disorder characterized by demyelination and immune dysregulation, and mic … tributing to MS remain inadequately characterized. METHODS: We utilized an experimental autoimmune encephalomyelitis (EAE) mouse model and performed RNA sequencing to identify differentially expressed Messenger RNAs (DEmRNAs), Long Non-Coding RNAs (DElncRNAs), Circular RNAs (DEcircRNAs), and microRNAs (DEmiRNAs) in microglia. A machine learning approach incorporat …

Typing myalgic encephalomyelitis by infection at onset: A DecodeME study.

BACKGROUND: People with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) experience core symptoms of post-exertional malaise, unrefreshing sleep, and cognitive impairment. Despite numbering 0.2-0.4% of the population, no laboratory test is available for their diagnosis, no effective therapy exists for their treatment, and no scientific breakthrough regarding pathogenesis has been made. It remains unknown, despite decades of small-scale studies, whether individuals experience different types of ME/CFS separated by onset-type, sex or age. METHODS: DecodeME is a large population-based…

Transcriptome Profiling in the Hippocampi of Mice with Experimental Autoimmune Encephalomyelitis.

Experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis (MS), approximates the key histopathological, clinical, and immunological features of MS. Hippocampal dysfunction in MS and EAE causes varying degrees of cognitive and emotional impairments and synaptic abnormalities. However, the molecular alterations underlying hippocampal dysfunctions in MS and EAE are still under investigation. The purpose of this study was to identify differentially expressed genes (DEGs) in the hippocampus of mice with EAE in order to ascertain potential genes associated with hippocamp…

Iliopsoas Hematomas in a Patient with Progressive Encephalomyelitis with Rigidity and Myoclonus.

Progressive encephalomyelitis with rigidity and myoclonus (PERM) is a rare and severe syndrome characterized by rigidity of the limb and truncal muscles, brainstem signs, myoclonus, and hyperekplexia. Iliopsoas hematoma is a serious complication of bleeding disorders that occurs most commonly in patients with hemophilia and also in association with anti-coagulant drug treatment. We herein present a case of PERM complicated with bilateral iliopsoas hematomas. His neurological symptoms improved after immunotherapy, and thereafter the iliopsoas hematomas disappeared. Neurologists should consider …

Impact of Myalgic Encephalomyelitis on treatment of comorbidities: A lived experience.

Myalgic Encephalomyelitis (ME) is a complex, chronic, disabling, multi-system disease with no FDA-approved treatments. ME greatly impacts quality of life (QoL) with studies showing that people with ME often have worse quality of life than people with sickle cell anemia and cystic fibrosis, among other chronic diseases. People with ME frequently have comorbidities, which, if treated, could improve quality of life. However, the pervasive impact of ME makes treatment of comorbidities difficult. When trying to treat comorbidities it is therefore important for rehabilitation specialists to understa…

Diagnosis and Treatment of NMO Spectrum Disorder and MOG-Encephalomyelitis.

Neuromyelitis optica spectrum disorders (NMOSD) are autoantibody mediated chronic inflammatory diseases. Serum antibodies (Abs) against the aquaporin-4 water channel lead to recurrent attacks of optic neuritis, myelitis and/or brainstem syndromes. In some patients with symptoms of NMOSD, no AQP4-Abs but Abs against myelin-oligodendrocyte-glycoprotein (MOG) are detectable. These clinical syndromes are now frequently referred to as "MOG-encephalomyelitis" (MOG-EM). Here we give an overview on current recommendations concerning diagnosis of NMOSD and MOG-EM. These include antibody and further lab…