Publications by authors named "N A Stefanova"
Increasing evidence on the adverse health impacts of microplastics (MPs) is available, but their associated risks to the well-being of humans and long-term impacts are poorly understood. An indicator of the remote effects of MPs may be their influence on the rate of aging. To assess the effects of MPs on the aging process, we used accelerated senescence OXYS rats that develop a complex of geriatric diseases.
View Article and Find Full Text PDFBackground: It is believed that alterations in the functioning of the cytochrome P450 (CYP), which participates in metabolic transformations of endogenous polyunsaturated fatty acids (PUFAs) (with the formation of cardioprotective or cardiotoxic products), affects the development of age-related cardiovascular diseases and reduces the effectiveness of some cardioselective drugs. For example, CYP2J2 activation or CYP1B1 inhibition protects against the cardiovascular toxicity of anticancer drugs. It is currently unclear whether CYPs capable of metabolizing arachidonic acid and ω-3 PUFAs to vasodilatory and vasoconstrictive derivatives are expressed in all heart regions.
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- The study investigates protein-rich inclusions in neurodegeneration, noting that current iPSC models lack reproducibility and speed in developing these inclusions.
- Researchers created new iPSC models that allow for rapid production of CNS cells with proteins prone to aggregation, enabling the tracking of inclusions at a single level.
- They identified various inclusion types with differing effects on neuron survival and isolated proteins that could influence toxicity, paving the way for improved drug development for neurodegenerative diseases.
Article Synopsis
- Multiple system atrophy (MSA) is a neurodegenerative disease that leads to symptoms like parkinsonism and ataxia, but its genetic causes are not well understood and treatment options are limited to supportive care.
- A comprehensive study involving the whole genome sequencing of nearly 900 MSA patients and over 7,000 controls discovered four key genetic risk factors associated with the disease.
- The research identified potential susceptibility genes and provided insights into how genetic variations influence gene expression in brain cells, offering a valuable resource for further studies on similar diseases.
Multiple system atrophy (MSA) is a rare, neurodegenerative disorder with rapid motor and non-motor symptom progression. MSA is characterized by protein aggregations of α-synuclein found in the cytoplasm of oligodendrocytes. Despite this pathological hallmark, there is still little known about the cause of this disease, resulting in poor treatment options and quality of life post-diagnosis.
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