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[Multiple sclerosis: disease entity, subtypes and variants, and diagnostic criteria].

Multiple sclerosis (MS) is the prototypic inflammatory demyelinating disorder of the central nervous system (CNS). The increasing application of new powerful technologies during recent years has yielded new concepts and opened a new horizon. The prototype MS is called classical MS or Charcot variant and is characterized by the presence of the lesions in all parts of the CNS, consistently including cerebrum and/or cerebellum. It takes a relapsing-remitting course initially but, in most of the Caucasian cases, eventually turns into the chronic progressive stage (secondary chronic progressive for…

Hepcidin and metallothioneins as molecular base for sex-dependent differences in clinical course of experimental autoimmune encephalomyelitis in chronic iron overload.

Multiple sclerosis is a chronic demyelinating disease of the central nervous system characterised by inflammatory and degenerative changes. It is considered that disease arises from the influence of environmental factors on genetically susceptible individuals. Recent researches, using magnetic resonance imaging, connected iron deposits in different brain regions with demyelinating process in multiple sclerosis patients. Although iron is an essential trace element important for many biological functions it could be harmful because iron excess can induce the production of reactive oxygen species…

Incidence and morphology of secondary TDP-43 proteinopathies: Part 1.

Transactive response DNA binding protein of 43 kDa (TDP-43) is considered to play an essential role in the pathogenesis of frontotemporal lobar degeneration and amyotrophic lateral sclerosis. Growing body of evidence indicate that pathological TDP-43 inclusions frequently occur in the context of other distinctive hallmark pathologies, referred to as secondary TDP-43 proteinopathies. Comorbid TDP-43 pathology is well-documented in several neurodegenerative disorders, including Alzheimer's disease, Parkinson's disease, multiple system atrophy, or progressive supranuclear palsy. It may also appea

Senolytic treatment diminishes microglia and decreases severity of experimental autoimmune encephalomyelitis.

BACKGROUND: The role of senescence in disease contexts is complex, however there is considerable evidence that depletion of senescent cells improves outcomes in a variety of contexts particularly related to aging, cognition, and neurodegeneration. Much research has shown previously that inflammation can promote cellular senescence. Microglia are a central nervous system innate immune cell that undergo senescence with aging and during neurodegeneration. The contribution of senescent microglia to multiple sclerosis, an inflammatory neurodegenerative disease, is not clear, but microglia are stron…

Impact of Particulate Matter 2.5 on Neurological Diseases: Insights Into Pathophysiological and Molecular Mechanisms.

BACKGROUND: Fine particulate matter (PM2.5) has been significantly linked to the progression of various neurological and neurodegenerative diseases. OBJECTIVE: This review aims to elucidate the molecular and pathophysiological effects induced by chronic exposure to PM2.5 in neurological and neurodegenerative diseases, including Alzheimer's, Parkinson's, Huntington's, multiple sclerosis, and epilepsy. INTRODUCTION: PM2.5 penetrates the central nervous system (CNS) via the olfactory nerve or by disrupting the blood-brain barrier (BBB), triggering oxidative stress, neuroinflammation, mitochondr…

Clinical characteristics of patients with late-onset multiple sclerosis.

We evaluated clinical presentation, cerebrospinal fluid (CSF), and magnetic resonance imaging (MRI) in patients with late-onset multiple sclerosis (LOMS). Fifty-two patients with definitive multiple sclerosis (MS) diagnosed after the age of 50 years were identified between 1991 and 2002. Data pertaining to clinical characteristics, CSF analysis, and cerebral and spinal MRI were compared with those of 52 young-onset MS (YOMS) patients matched for sex and disease duration. Mean age at the time of diagnosis was 57 years in the LOMS group - the oldest patient was 82 - and 29 years in the YOMS grou…

Получил от "Puff of Domoke"-A Case-Review on the Challenging Discrimination of CNS Demielining Beace and Moyamoya Angiopatia.

Moyamoya aнгиопатия (MMA) — цереброваскулярное заболевание, определяющее хроническое прогрессивное включение надклиноидных внутренних артерий сонной артерии и их основных веток. Патогенез ММА по-прежнему в значительной степени неизвестен. Множественный склероз (MS) является хроническим, подстрекательским и демиелинизирующим заболеванием центральной нервной системы, характеризующимся постепенным накоплением фокусных демиелионирующих повреждений, патофизиология которых была теоретической, но до сих пор не до конца понята. Помимо неправильной диагностики из-за имитирующих эти два расстройства осо

Совпадение в аннотации оригинала
Moyamoya angiopathy (MMA) is a cerebrovascular disease determining chronic progressive steno-occlusion of the supraclinoid internal carotid arteries and their main branches. The pathogenesis of MMA remains largely unknown. Multiple sclerosis (MS) is a chronic, inflammatory, demyelinating disease of the central nervous system characterized by the progressive …

Executive dysfunction and cognitive impairment in a large community-based sample with Multiple Sclerosis from New Zealand: a descriptive study.

Multiple Sclerosis (MS) is one of the most common chronic diseases of the central nervous system, and in New Zealand an estimated 4000 people are currently affected. This study was conducted to examine executive functioning, memory and general ability in a community-based sample of 95 participants with MS. The sample included those with relapsing-remitting, secondary progressive, chronic progressive and benign MS with an average duration of illness of 11.8 years. Only 9% of the participants showed no indication of cognitive impairment with most exhibiting mild executive dysfunction across the …

Human T lymphotropic virus type I (HTLV-I)-specific T helper cell responses from HTLV-I seronegative patients with chronic myelopathy and MS in Japan.

Human T lymphotropic virus type I (HTLV-I) is a human retrovirus etiologically linked to Adult T cell leukemia (ATL) and HTLV-I associated m … tection by PCR. We examined 12 patients with chronic progressive myelopathy and eight patients with multiple sclerosis (MS) in central Japan, where the prevalence rate of HTLV-I is between one and four percent among asymptomatic blood donors, using the IL-2 production assay. None of them were positive by the assay, suggesting seronegative HTLV-I myelopathy is very r …

Clinically isolated lesions of the type seen in multiple sclerosis: a cognitive, psychiatric, and MRI follow up study.

There is a dearth of longitudinal studies on psychometric and psychiatric change in multiple sclerosis (MS) particularly on the evolution of these abnormalities early in the disease process. A 4 1/2 year follow up study documenting magnetic resonance imaging (MRI), psychometric, and psychiatric abnormalities was undertaken in a group of 48 patients with clinically isolated lesions--for example, optic neuritis--which are frequently the harbinger of MS. At follow up about half the subjects had developed clinically definite MS, with memory deficits becoming apparent. Deficits in attention documen…

Sensorimotor dysfunction in multiple sclerosis and column-specific magnetization transfer-imaging abnormalities in the spinal cord.

The human spinal cord contains segregated sensory and motor pathways that have been difficult to quantify using conventional magnetic resonance imaging (MRI) techniques. Multiple sclerosis is characterized by both focal and spatially diffuse spinal cord lesions with heterogeneous pathologies that have limited attempts at linking MRI and behaviour. We used a novel magnetization-transfer-weighted imaging approach to quantify damage to spinal white matter columns and tested its association with sensorimotor impairment. We studied 42 participants with multiple sclerosis who each underwent MRI at 3…

Mechanisms of axon-glial injury of the optic nerve.

The central concept underlying ideas on the pathogenesis of multiple sclerosis is that inflammatory events cause acute injury of axons and myclin. The phases of symptom onset, recovery, persistence, and progression in multiple sclerosis can be summarized as functional impairment with intact structure due to direct effects of inflammatory mediators; demyelination and axonal injury with recovery through plasticity and remyelination; and chronic axonal loss due to failure of enduring remyelination from loss of trophic support for axons normally provided by cells of the oligodendrocyte lineage. Ce…

[Various forms in the course of multiple sclerosis].

In a multicentre study the data of 2057 patients with multiple sclerosis were recorded and analysed in respect to the different courses. The remitting form begins at earlier age with a higher frequency of sensitivity disturbances, optic neuritis and other cranial nerve disturbances whereas the chronic progressive process starts with spastic pareses and sphincter disturbances in a higher percentage of cases. During the further course these differences persist. With the beginning of a chronic progression the prognosis is unfavorable whether the process started with bouts or with progression from…

The P2X7R-antagonist AFC-5128 ameliorates chronic experimental autoimmune encephalomyelitis in a preventive and therapeutic paradigm.

BACKGROUND: Multiple sclerosis (MS) is characterized by chronic inflammation driven by central nervous system (CNS)-resident immune cells such as microglia, especially during the progressive phase of the disease. The P2X7 receptor (P2X7R), a risk protein for MS, is ubiquitously expressed on immune cells. AFC-5128, a CNS-penetrating small molecule inhibitor of P2X7R, is a promising agent for the treatment of autoimmune diseases such as MS. METHODS: In vitro, the effects on the calcium influx of primary murine microglia were assessed via Fluo-4 calcium imaging. In vivo, MOG35-55 immunized C57BL…

Blood-Flow Restriction Training for a Person With Primary Progressive Multiple Sclerosis: A Case Report.

OBJECTIVE: Blood flow restriction (BFR) training, in which an inflatable cuff partially occludes blood flow around the proximal portion of a limb, coupled with low-intensity resistance training (LIRT) has resulted in gains comparable with traditional progressive resistive exercise in healthy populations. The use of BFR with LIRT may enable people with multiple sclerosis (MS) to improve strength without an increase in fatigue. The purpose of this case report is to describe the use of a BFR/LIRT program for a person with MS. METHODS: The patient was a 54-year-old woman with a 13-year history of…

Multiple sclerosis and neurofibromatosis type 1: report of seven patients from Iran.

INTRODUCTION: Co-occurrence of multiple sclerosis (MS) and neurofibromatosis type 1 (NF1) is rare. CASE REPORTS: In this study, we describe the clinical and neuroimaging features of seven patients with NF1 and MS. In our patients, six patients with MS were women, in all of them history of NF1 existed. Three of our patients had primary progressive, one had secondary progressive MS, and three relapsing-remitting MS. Optic neuritis as presenting symptoms was seen in three patients, and motor manifestation as presenting symptom was observed in three patients. The risk of having both NF1 and MS se…

Mitochondrial-Immune Dysfunction in MS: Therapeutic Potential of EV-Mediated Transfer.

Multiple sclerosis (MS) is a chronic immune-mediated disorder of the central nervous system. In this disease, mitochondrial dysfunction contributes to neurodegeneration, axonal loss, and progressive disability. Extracellular vesicle (EV)-mediated mitochondrial transfer has emerged as a promising cell-free strategy to restore mitochondrial homeostasis and modulate immune responses within the CNS. Preclinical studies, particularly in experimental autoimmune encephalomyelitis models, demonstrate that EV-based delivery of mitochondrial cargo improves cellular bioenergetics. In parallel, this appro…

[Neurology: what's new in 2023].

The year 2023 is marked by the arrival on the market of lecanemab for the treatment of Alzheimer's disease. New biomarkers have demonstrated their usefulness in monitoring peripheral neuropathies and diagnosing synucleinopathies. A genetic study has highlighted the role of nervous system cells in the risk of progression of multiple sclerosis (MS). The adverse effects of anticonvulsant treatments after prenatal exposure and on lipid metabolism have been clarified. New anti-CGRP treatments have demonstrated their efficacy in migraine attacks and chronic migraines. The criteria for thrombectomy h…

[A rare case of a sclerodermoid chronic graft versus host disease. Successful treatment with extracorporeal photopheresis (ECP)].

A 31-year-old woman presented with progressive deep linear induration on her lower abdomen, forearms and thighs. These symptoms developed three years after allogenic stem cell transplantation. Furthermore, the patient showed multiple hypopigmented lichenoid papules on the extensor surfaces of the forearms consistent with lichen sclerosus. Histological analysis of a biopsy specimen from her left thigh showed dermal sclerosis extending into the fascia, thus establishing the diagnosis of a rare combination of superficial and deep sclerodermoid chronic graft-versus-host disease. After 7 cycles of

[Diabetes insipidus in a pacient with multiple sclerosis].

Multiple Sclerosis (ME) is a chronic progressive disease characterized by relapses of demyelination that can occur anywhere in the brain stem, spinal cord and optic nerve. Since central diabetes insipidus (DI) is mainly caused by central nervous system damage (such as trauma, surgery, tumor, infection, sarcoidosis), ME is included among its possible etiologies. However, this association is not commonly described. The clinical suspicion must be made in the presence of polyuria and polydipsia or refractory hypernatremia (in patients without free access to water) during the evolution of ME. We wi…