Publications by authors named "V I Vinogradova"

Sensory experience shapes brain structure and function, and it is likely to influence the organisation of functional networks of the brain, including those involved in cognitive processing. Here we investigated the influence of early deafness on the organisation of resting-state networks of the brain and its relation to executive processing. We compared resting-state connectivity between deaf and hearing individuals across 18 functional networks and 400 ROIs.

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Background: This cross-sectional study aimed to determine the current prevalence of depression, and analyze sex-specific associated socio-demographic and health-related factors for depression in a representative sample of the general adult population of Latvia.

Methods: Specially trained professional interviewers conducted computer-assisted face-to-face interviews with a multistage stratified probability sample from the general Latvian adult population ( = 2,687). A 9-item Patient Health Questionnaire (PHQ) was used for assessment of depression.

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Article Synopsis
  • Isoquinoline alkaloids are important for medicinal purposes, and methods to improve their safety and efficacy are crucial.
  • A one-step synthesis of various tetrahydroisoquinolines was achieved with high yields using the Pictet-Spengler reaction, confirming the structures with advanced spectroscopic techniques.
  • Toxicity studies on these compounds in mice revealed varying levels of toxicity, with some exhibiting promising local anesthetic activity while showing potential safety differences among the derivatives.
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Bromination of the furanoquinoline alkaloid haplophyllidine by molecular bromine and -bromosuccinimide was accompanied by intramolecular cyclization to form mixtures of new compounds containing additional penta-, hexa-, and spirocyclic rings incorporating the prenyl group of haplophyllidine. The structures and absolute configurations of the chiral centers of all four bromo-derivatives were elucidated using a combination of NMR spectroscopic methods and X-ray crystal structure analyses.

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Background and Objectives: The aim of this study was to determine the point prevalence of at least mild anxiety symptoms and symptoms of generalized anxiety disorder in the Latvian general population, and to analyze the associated factors. Materials and Methods: A computer-assisted face-to-face survey was conducted in 2019−2020 with a multistage stratified probability sample of the Latvian general adult population (n = 2687). Anxiety was assessed using the 7-item Generalized Anxiety Disorder (GAD-7) scale; a score of ≥5 was defined as indicating the presence of mild symptoms of anxiety, and a score of ≥10 as the cutoff for identifying cases of generalized anxiety disorder.

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