Anti-IgLON5 disease is a relatively new neurological entity with the first cases reported in 2014. So far, less than 70 articles on this topic have been published. Due to its unspecific symptomatology, diverse progression, novelty and ambiguous character, it remains a difficulty for both clinical practitioners and scientists. The aim of this review is to summarize the current knowledge concerning anti-IgLON5 disease; mechanisms underlying its cause, symptomatology, clinical progression, differential diagnosis and treatment, which could be helpful in clinical practice and future research.
Background: Atypical parkinsonian syndromes are rare, fatal neurodegenerative diseases associated with abnormal protein accumulation in the brain. Examples of these syndromes include progressive supranuclear palsy, multiple system atrophy, and corticobasal degeneration. A common clinical feature in parkinsonism is a limited improvement with levodopa. So far, there are no disease-modifying treatments to address these conditions, and therapy is only limited to the alleviation of symptoms. Diagnosis is devastating for patients, as prognosis is extremely poor, and the disease tends to progress rapidly. Currently, potential causes and neuropathological mechanisms involved in these diseases are being widely investigated.Objectives: The goal of this review is to summarize recent advances and gather emerging disease-modifying therapies that could slow the progression of atypical parkinsonian syndromes.Methods: PubMed and Google Scholar databases were searched regarding novel perspectives for atypical parkinsonism treatment. The following medical subject headings were used: “atypical parkinsonian syndromes—therapy,” “treatment of atypical parkinsonian syndromes,” “atypical parkinsonian syndromes—clinical trial,” “therapy of tauopathy,” “alpha-synucleinopathy treatment,” “PSP therapy/treatment,” “CBD therapy/treatment,” “MSA therapy/treatment,” and “atypical parkinsonian syndromes—disease modifying.” All search results were manually reviewed prior to inclusion in this review.Results: Neuroinflammation, mitochondrial dysfunction, microglia activation, proteasomal impairment, and oxidative stress play a role in the neurodegenerative process. Ongoing studies and clinical trials target these components in order to suppress toxic protein accumulation. Various approaches such as stem cell therapy, anti-aggregation/anti-phosphorylation agent administration, or usage of active and passive immunization appear to have promising results.Conclusion: Presently, disease-modifying strategies for atypical parkinsonian syndromes are being actively explored, with encouraging preliminary results. This leads to an assumption that developing accurate, safe, and progression-halting treatment is not far off. Nevertheless, the further investigation remains necessary.
Introduction.Corticobasal syndrome (CBS) is a specific clinical manifestation shared by multiple pathologies. The exact mechanism of this phenomenon remains unclear. Differential diagnosis of CBS in everyday clinical practice is challenging, as this syndrome can overlap with other entities, especially progressive supranuclear palsy Richardson-Steele phenotype (PSP-RS). Several papers have suggested a possible role of vascular pathology as a linking factor in the pathogenesis of CBS based on different neuropathologies. This paper analyses differences in the occurrence of the most common vascular risk factors such as hypertension and lipid profile with respect to dietary habits among patients who fulfill the diagnostic criteria for probable/possible CBS and PSP-RS.Material and methods. Seventy (70) patients in total were included in the study. Exclusion criteria comprised hydrocephalus, stroke in the past, the presence of marked vascular changes in white matter defined as the presence of vascular change ≥ 1 mm in 3T MRI, medical history of hyperlipidemia or the use of drugs that could impact upon lipid metabolism before the initiation of the neurodegenerative disease, and neoplastic focuses in the central nervous system. Patients with diabetes, or with BMI exceeding 18-25, or who were smokers, or who were affected by chronic stress were also excluded. Data was analysed statistically using the Shapiro-Wilk test, the U Mann-Whitney test for group comparison, and a Bonferroni correction to control the false discovery rate (FDR).Results. Our obtained results indicated a statistically significantly higher level of total cholesterol in the CBS group (p = 0.0039) without a correlation with dietary habits. Conclusions and clinical implications.The results obtained in our study may suggest a possible role of vascular pathology in CBS development. This issue requires further research.
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