Publications by authors named "A V Vitebskaya"

Biological age is a personalized measure of the health status of an organism, organ, or system, as opposed to simply accounting for chronological age. To date, there have been known attempts to create estimators of biological age based on various biomedical data. In this work, we focused on developing an approach for assessing heart biological age using echocardiographic data.

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Wiedemann-Rautenstrauch syndrome (neonatal progeroid syndrome) is an ultra-orphan disease from the group of premature aging syndromes with an autosomal recessive type of inheritance associated with mutations in the POLR3A, POLR3B, and POLR3GL genes encoding RNA polymerase III. The incidence of the disease is currently unknown. We present the first clinical description in Russian Federation of a patient 7 years 6 months old with Wiedemann-Rautenstrauch syndrome (compound heterozygous mutations in POLR3A gene) with progeroid features, adentia, growth retardation (height SDS -3,41, height velocity SDS -2,47), underweight (BMI SDS -6,20), and generalized lipodystrophy.

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Article Synopsis
  • Bi-allelic pathogenic variations in a specific gene are linked to various hereditary disorders, including the rare Wiedemann-Rautenstrauch syndrome (WRS), which shows neonatal symptoms like growth issues and distinctive facial features.
  • This study details a clinical case of a 7-year-old girl with WRS, where whole-exome sequencing revealed a novel missense variant and two intronic variants associated with the condition.
  • The findings confirm the pathogenic nature of these genetic changes, contributing to the understanding of POLR3A-related disorders and highlighting the need for further research in the area.
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Often transfusions red blood cells in patients with hereditary anemias lead to iron overload, that can cause endocrine complications, such as growth retardation, hypothyroidism, hypogonadism, and disorders of carbohydrate metabolism.Clinical case 1. A boy with transfusion-dependent (TD) Diamond-Blackfan anemia at 16.

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(1) Hypophosphatasia (HPP) is a rare inherited disease caused by mutations (pathogenic variants) in the ALPL gene which encodes tissue-nonspecific alkaline phosphatase (TNSALP). HPP is characterized by impaired bone mineral metabolism due to the low enzymatic activity of TNSALP. Knowledge about the structure of the gene and the features and functions of various ALPL gene variants, taking into account population specificity, gives an understanding of the hereditary nature of the disease, and contributes to the diagnosis, prevention, and treatment of the disease.

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