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Elevated CD45+CD11c+CX3CR1+ Cells in Optic Nerves and Their Relation to Optic Nerve Function in an Experimental Autoimmune Encephalomyelitis Model.

Dendritic cells are antigen-presenting cells that play essential roles in immunity and initiate immune reactions in experimental autoimmune encephalomyelitis (EAE) models. Dendritic cell recruitment was quantified in the optic nerve and retina after inducing the EAE model, and the correlation between functional and structural damage to the optic nerve and retina was determined. EAE was induced in female C57BL/6 mice by injecting murine myelin oligodendrocyte glycoprotein 35-55. All 20 mice were sacrificed sequentially. The dendritic cell infiltration level was analyzed using flow cytometry and…

A radiolabeled dendrimer non-invasively identifies and tracks innate immune cell activation in a mouse model of experimental autoimmune encephalomyelitis.

Multiple sclerosis (MS) is a chronic neurodegenerative disease driven by infiltration of activated innate immune cells into the central nervous system (CNS). Current imaging approaches for diagnosing and monitoring disease progression rely on structural lesions and cannot directly assess innate immune activity. Here, we describe a dendrimer positron emission tomography (PET) tracer, 18F-flurimedrimer (18F-FMD), for non-invasive, longitudinal tracking of activated myeloid cells. In an experimental autoimmune encephalomyelitis (EAE) murine model, 18F-FMD specifically detects myeloid activation a…

Изучение последствий экстракта алкоголика для окислительного стресса и подстрекательских параметров в мышах C57BL/6 с индуцируемым аутоиммунным энцефаломиелитом.

ЦЕЛЬ: Множественный склероз (MS) — хроническое аутоиммунное заболевание, характеризующееся нейроинфламмацией и обезвоживанием. Frankincense, натуральный олео-гум-резин, полученный из рода Босуэллия (семейство Burseraceae), обладает антивоспалительными и иммунодуляционными свойствами. Цель этого исследования состояла в том, чтобы оценить терапевтические последствия экстракта алкоголика лабиненса в экспериментальной модели MS. МАТЕРИАЛЫ И МЕТОДЫ: Женские мыши C57BL/6 были произвольно отнесены к трем группам (n = 5). Экспериментальный аутоиммунный энцефаломиелит (EAE) был вызван подкожной иммуниз

Совпадение в аннотации оригинала
OBJECTIVE: Multiple sclerosis (MS) is a chronic autoimmune disease characterized by neuroinflammation and demyelination. Frankincense, a nat … ETHODS: Female C57BL/6 mice were randomly assigned to three groups (n = 5). Experimental autoimmune encephalomyelitis (EAE) was induced by subcutaneous immunization with MOG35-55/CFA and intraperitoneal injection of pertussis toxin. Mice were treated orally with alcoholic frankincense extract (200 mg/kg) for 33 days. Serum levels of IL-17A, IL-23, transforming grow …

Progressive encephalomyelitis with rigidity and myoclonus initially diagnosed as an anxiety disorder associated with anti-glycine receptor antibodies: A case report.

Progressive encephalomyelitis with rigidity and myoclonus is a rare neurological disorder predominantly associated with anti-glycine receptor antibodies. It is characterized by rigidity, painful muscle spasms, sensory disturbances, brainstem and spinal cord involvement, autonomic dysfunction, respiratory distress, and sudden, spontaneous, or stimulus-induced myoclonus. A Chinese woman in her early 50s was admitted with acute-onset dysphagia, dysarthria, and stiffness in both lower limbs. Her initial symptoms included anxiety, recurrent myoclonic episodes, swallowing difficulties, and lower lim…

Complete Recovery From Human Herpesvirus 6 (HHV-6) Encephalomyelitis in an Immunocompetent Adult: A Rare Cause of Paraparesis and Ataxia.

Human herpesvirus 6 (HHV-6) is a commonly acquired virus in early childhood, typically resulting in a benign and self-limited illness. Howev … ce. This case highlights the importance of considering HHV-6 in the differential diagnosis of acute encephalomyelitis, even in immunocompetent adults, and demonstrates that early antiviral and immunomodulatory therapy can lead to favorable neurological outcomes.

Early olfactory dysfunction in experimental autoimmune encephalomyelitis reflects transient brain barrier breach and initiation of neuroinflammation in the olfactory bulb.

Olfactory dysfunction is increasingly recognized as an early, non-motor manifestation of multiple sclerosis (MS), but the mechanisms underlying its occurrence remain unclear. Using the rat model of experimental autoimmune encephalomyelitis (EAE), we investigated the temporal relationship between olfactory impairment, neuroinflammation, barrier integrity, and adenosine signaling in the olfactory bulb (OB) in the early stage of EAE. The study showed that more than two-thirds of EAE animals exhibited significant deficits in the buried food test as early as 3 days post-immunization (dpi), which pr…

Cellular and Immunological Analysis of 2D2/Th Hybrid Mice Prone to Experimental Autoimmune Encephalomyelitis in Comparison with 2D2 and Th Lines.

Previously, we described the mechanisms of development of autoimmune encephalomyelitis (EAE) in 3-month-old C57BL/6, Th, and 2D2 mice. The faster and more profound spontaneous development of EAE with the achievement of deeper pathology occurs in hybrid 2D2/Th mice. Here, the cellular and immunological analysis of EAE development in 2D2/Th mice was carried out. In Th, 2D2, and 2D2/Th mice, the development of EAE is associated with a change in the differentiation profile of hemopoietic bone marrow stem cells, which, in 2D2/Th, differs significantly from 2D2 and Th mice. Hybrid 2D2/Th mice demons…

The Head-Up Tilt Table Test as a Measure of Autonomic Functioning among Patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome.

Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) often experience autonomic symptoms. In the present study, we evaluated 193 adults seeking treatment for ME/CFS, who were recruited from an outpatient clinic. The participants completed a head-up tilt table test to assess two common types of orthostatic intolerance, namely, postural orthostatic tachycardia syndrome (POTS) and orthostatic hypotension (OH). During the tilt test, 32.5% of the participants demonstrated POTS or OH. The participants with either of these two common types of orthostatic intolerance were found…

Perfusion with 10% neutral-buffered formalin is equivalent to 4% paraformaldehyde for histopathology and immunohistochemistry in a mouse model of experimental autoimmune encephalomyelitis.

Intravascular (IV) perfusion of tissue fixative is commonly used in the field of neuroscience as the central nervous system tissues are exquisitely sensitive to handling and fixation artifacts which can affect downstream microscopic analysis. Both 10% neutral-buffered formalin (NBF) and 4% paraformaldehyde (PFA) are used, although IV perfusion with PFA is most commonly referenced. The study objective was to compare the severity of handling and fixation artifacts, semiquantitative scores of inflammatory and neurodegenerative changes, and quantitative immunohistochemistry following terminal IV p

Clinical characteristics and associated factors of pediatric acute disseminated encephalomyelitis patients with MOG antibodies: a retrospective study in Hangzhou, China.

BACKGROUND: To explore the clinical characteristics and related factors of children with acute disseminated encephalomyelitis (ADEM) with positive anti-myelin oligodendrocyte glycoprotein (MOG) antibody. METHODS: A retrospective study was conducted and enrolled pediatric ADEM patients who underwent serum MOG antibody detection from May 2017 to August 2020. The patients were divided into two groups: MOG- immunoglobulin G (IgG) positive (n = 35) and MOG-IgG negative (n = 50). We analyzed the clinical characteristics of MOG-IgG-positive ADEM pediatric patients and conducted a comparative analysi…

Gold nanoparticles and polyethylene glycol alleviate clinical symptoms and alter cytokine secretion in a mouse model of experimental autoimmune encephalomyelitis.

Gold nanoparticles (GNPs) are attractive nanoparticles with unique electronic and optical properties in the nanotechnology field and are widely used in various biomedical fields. Studies have shown that these particles also exhibit antioxidant and anti-inflammatory properties. On the other hand, polyethylene glycol (PEG) that used to stabilize GNPs also exhibits antioxidant and anti-inflammatory properties due to their membrane resealing properties. The aim of this study was to evaluate the ameliorative effect of GNPs and PEG in experimental autoimmune encephalomyelitis (EAE), an animal model …

Neuroimmunological characterization of a mouse model of primary progressive experimental autoimmune encephalomyelitis and effects of immunosuppressive or neuroprotective strategies on disease evolution.

Progressive multiple sclerosis (PMS) is a devastating disorder sustained by neuroimmune interactions still wait to be identified. Recently, immune-independent, neural bioenergetic derangements have been hypothesized as causative of neurodegeneration in PMS patients. To gather information on the immune and neurodegenerative components during PMS, in the present study we investigated the molecular and cellular events occurring in a Non-obese diabetic (NOD) mouse model of experimental autoimmune encephalomyelitis (EAE). In these mice, we also evaluated the effects of clinically-relevant immunosup…

Impact of Polypharmacy on Candidate Biomarker miRNomes for the Diagnosis of Fibromyalgia and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Striking Back on Treatments.

Fibromyalgia (FM) and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) are diseases of unknown etiology presenting complex and often overlapping symptomatology. Despite promising advances on the study of miRNomes of these diseases, no validated molecular diagnostic biomarker yet exists. Since FM and ME/CFS patient treatments commonly include polypharmacy, it is of concern that biomarker miRNAs are masked by drug interactions. Aiming at discriminating between drug-effects and true disease-associated differential miRNA expression, we evaluated the potential impact of commonly prescrib…

Unraveling the Molecular Determinants of Manual Therapy: An Approach to Integrative Therapeutics for the Treatment of Fibromyalgia and Chronic Fatigue Syndrome/Myalgic Encephalomyelitis.

Application of protocols without parameter standardization and appropriate controls has led manual therapy (MT) and other physiotherapy-base … nses that could be used for the treatment of fibromyalgia (FM) and chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). The systemic effects associated to mechanical-load responses are considered of particular relevance, as they suggest that defined, low-pain anatomic areas can be selected for MT treatment and yet yield overall benefits, an aspect that migh …

Modeling month-season of birth as a risk factor in mouse models of chronic disease: from multiple sclerosis to autoimmune encephalomyelitis.

Month-season of birth (M-SOB) is a risk factor in multiple chronic diseases, including multiple sclerosis (MS), where the lowest and greatest risk of developing MS coincide with the lowest and highest birth rates, respectively. To determine whether M-SOB effects in such chronic diseases as MS can be experimentally modeled, we examined the effect of M-SOB on susceptibility of C57BL/6J mice to experimental autoimmune encephalomyelitis (EAE). As in MS, mice that were born during the M-SOB with the lowest birth rate were less susceptible to EAE than mice born during the M-SOB with the highest birt…

Modelling person-to-person transmission in an Enterovirus A71 orally infected hamster model of hand-foot-and-mouth disease and encephalomyelitis.

Enterovirus A71 (EV-A71) causes hand-foot-and-mouth disease (HFMD), which may be complicated by fatal encephalomyelitis. Although fecal-oral or oral-oral routes are important in person-to-person transmission, how viral shedding and exposure may predispose individuals to infection remains unknown. We investigated person-to-person transmission by using a model of HFMD and encephalomyelitis based on EV-A71 oral infection of 2-week-old hamsters. Animals (index animals) infected with 104 50% cell culture infective doses of virus uniformly developed severe disease four days post-infection (dpi), whe…

Children with multiphasic disseminated encephalomyelitis and antibodies to the myelin oligodendrocyte glycoprotein (MOG): Extending the spectrum of MOG antibody positive diseases.

BACKGROUND: Myelin oligodendrocyte glycoprotein (MOG) antibodies have been described in children with acute disseminated encephalomyelitis (ADEM), recurrent optic neuritis, neuromyelitis optica spectrum disorders and more recently in children with multiphasic disseminated encephalomyelitis (MDEM). OBJECTIVE: To delineate the clinical, cerebrospinal fluid (CSF) and radiological features of paediatric MDEM with MOG antibodies. METHODS: Clinical course, serum antibodies, CSF, magnetic resonance imaging (MRI) studies and outcome of paediatric MDEM patients were reviewed. RESULTS: A total of 8 c…

Mesenchymal Stromal/Stem Cells Do Not Ameliorate Experimental Autoimmune Encephalomyelitis and Are Not Detectable in the Central Nervous System of Transplanted Mice.

Mesenchymal stromal/stem cells (MSCs) constitute progenitor cells that can be isolated from different tissues. Based on their immunomodulatory and neuroprotective functions, MSC-based cell-therapy approaches have been suggested to antagonize inflammatory activity and neuronal damage associated with autoimmune disease of the central nervous system (CNS), for example, multiple sclerosis (MS). Intravenous MSC transplantation was reported to ameliorate experimental autoimmune encephalomyelitis (EAE), the murine model of MS, within days after transplantation. However, systemic distribution patterns…

Acute disseminated encephalomyelitis without optic neuritis followed by optic neuritis in a child due to the sudden cessation of steroid therapy.

Acute disseminated encephalitis (ADEM) is an autoimmune demyelinating disorder of the central nervous system that usually occurs in children after viral infection or vaccination. It is not uncommon for ADEM to be accompanied by optic neuritis. However, ADEM followed by optic neuritis is a rare. We report the case of a 6-year-old girl who initially presented with ADEM (without optic neuritis) due to a live measles, mumps, and rubella vaccine and was treated with intravenous high-dose corticosteroids. After steroid therapy, she recovered neurologically and was not prescribed any medication, incl