Publications by authors named "L A Belikova"

Astrocytes are subtypes of glial cells involved in metabolic, structural, homeostatic, and neuroprotective processes that help neurons maintain viability. Insulin-like growth factors IGF-1 and IGF-2 are known to have neuroprotective effects on neurons and glial cells through interaction with specific receptors. IGF forms a complex with IGF-binding proteins (IGFBP) in nervous tissue and is released from the complex via IGFBP proteolysis by specific proteases.

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Multiple system atrophy (MSA) is a severe, orphan disease characterized by a steady increase in symptoms of parkinsonism, cerebellar disorders, and autonomic failure. In addition to autonomic failure, which is considered the defining symptom of this type of atypical parkinsonism, there are a range of other non-motor clinical manifestations, such as sleep disorders, pain syndrome, anxiety-depressive disorders, cognitive impairment (CI). CI, especially severe CI, has long been considered as a distinctive feature of MCA.

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Article Synopsis
  • Pathogenic variants in the Gαo gene, crucial for brain function, are associated with severe neurological disorders, including developmental delays and epilepsy.
  • A study utilized patient-derived induced pluripotent stem cells to investigate the effects of the p.G203R variant, discovering issues in cell development and differentiation into neurons, characterized by abnormal gene expression.
  • Functional tests revealed that neurons with the p.G203R mutation exhibited lower calcium levels, reduced activity, and impaired responses to neurotransmitters, indicating a significant impact on brain signaling and development.
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Article Synopsis
  • * The study investigated calcium signaling in GABA-ergic medium spiny neurons derived from iPSCs created through different methods (lentivirus and Sendai virus) from the same donor's fibroblasts.
  • * Results showed no significant differences in calcium signaling between neurons from both reprogramming methods, indicating compatibility for combining data from different iPSC models and enhancing biobanking potential.
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Dysferlinopathy treatment is an active area of investigation. Gene therapy is one potential approach. We studied muscle regeneration and inflammatory response after injection of an AAV-9 with a codon-optimized DYSF gene.

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