Publications by authors named "Nikolay a Bokhan"

One of the fundamental problems in studying addiction is elucidation of mechanisms of alcohol dependence (AD) development. Disturbances of cellular redox balance and inflammation play an important role in AD pathogenesis. Deciphering associations between biological and clinical indicators can elucidate molecular mechanisms of disease pathogenesis.

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Chemokines are immunoregulatory proteins with pleiotropic functions involved in neuromodulation, neurogenesis, and neurotransmission. The way chemokines affect the CNS plays an important role in modulating various conditions that could have negative impact on CNS functions, including development of alcohol use disorders. In this review, we analyzed the literature data available on the problem of chemokine participation in pathogenesis, clinical presentation, and remission of alcohol use disorders both in animal models and in the study of patients with alcoholism.

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Metabolic syndrome (MetS) is common among schizophrenia patients, and one of MetS's causes may be an imbalance in nitric oxide regulation. In this study, we examined associations of three polymorphic variants of the nitric oxide synthase 1 adapter protein () gene with MetS in schizophrenia. NOS1AP regulates neuronal nitric oxide synthase, which controls intracellular calcium levels and may influence insulin secretion.

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Depressive disorder is a multifactorial disease that is based on dysfunctions in mental and biological processes. The search for biomarkers can improve its diagnosis, personalize therapy, and lead to a deep understanding of the biochemical processes underlying depression. The purpose of this work was a metabolomic analysis of blood serum to classify patients with depressive disorders and healthy individuals using Compound Discoverer software.

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Background: The search for biological markers for the differential diagnosis of recurrent depression and bipolar depression is an important undertaking in modern psychiatry. Electroencephalography (EEG) is one of the promising tools in addressing this challenge.

Aim: To identify differences in the quantitative characteristics of the electroencephalographic alpha band activity in patients with a depressive episode within the framework of recurrent depression and bipolar depression.

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The instability of remission in alcohol dependence (AD) creates a need to search for criteria for predicting its duration. The aim of study was to determine the hormones, oxidized proteins, and lipids in patients with AD, and the possible relations between these parameters and the duration of remission. Blood samples were obtained from 49 male patients with AD after alcohol detoxification (Total group).

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Nowadays, nervous tissue damage proteins in serum are considered promising drug targets and biomarkers of Mood Disorders. In a cross-sectional naturalistic study, the S100B, MBP and GFAP levels in the blood serum were compared between two diagnostic groups (patients with Depressive Episode (DE, n = 28) and patients with Recurrent Depressive Disorder (RDD, n = 21)), and healthy controls (n = 25). The diagnostic value of serum markers was assessed by ROC analysis.

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Immune gene variants are known to be associated with the risk of psychiatric disorders, their clinical manifestations, and their response to therapy. This narrative review summarizes the current literature over the past decade on the association of polymorphic variants of cytokine genes with risk, severity, and response to treatment for severe mental disorders such as bipolar disorder, depression, and schizophrenia. A search of literature in databases was carried out using keywords related to depressive disorder, bipolar disorder, schizophrenia, inflammation, and cytokines.

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Machine learning and artificial intelligence technologies are known to be a convenient tool for analyzing multi-domain data in precision psychiatry. In the case of schizophrenia, the most commonly used data sources for such purposes are neuroimaging, voice and language patterns, and mobile phone data. Data on peripheral markers can also be useful for building predictive models.

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Article Synopsis
  • - The study explores the role of growth factors, important molecules in cell development, in the development of schizophrenia symptoms, proposing it as a neurodevelopmental disorder.
  • - Researchers analyzed serum levels of six growth factors in 236 schizophrenia patients and 102 healthy individuals, finding higher levels of TGF-α and PDGF-AA in patients.
  • - The findings showed that the duration of schizophrenia correlates positively with FGF-2 levels, suggesting the need for combined biomarker screening to improve diagnosis and management of severe mental illnesses.
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Metabolic syndrome (MetS) is a common comorbidity of schizophrenia and significantly shortens life expectancy of the patients. Intercellular (ICAM), vascular (VCAM), and neural (NCAM) cell adhesion molecules (CAMs) mediate neuroinflammatory processes, and their soluble forms (e.g.

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  • - The study explores how genetic variations influencing the glutamatergic neurotransmitter system impact the development and clinical symptoms of schizophrenia in 805 Russian patients from Siberia.
  • - Three specific gene variants (rs11644461, rs8057394, rs7313149) are linked to a particular type of schizophrenia, with the rs8057394*G allele identified as a risk factor for this type.
  • - Additionally, another variant (rs62126236) shows a protective effect against negative symptoms, while overall symptom severity is significantly associated with yet another variant (rs9788936), indicating the role of genetic factors in schizophrenia's clinical diversity.
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Article Synopsis
  • Immune activation and neuroinflammation are significant factors in the development of schizophrenia, supported by various studies and reviews.
  • A study measured levels of 22 cytokines in 236 schizophrenia patients and 103 healthy individuals, finding several cytokines elevated in patients with schizophrenia.
  • The research highlighted differences in cytokine levels based on sex and the duration of illness, suggesting that cytokine imbalances relate to both clinical features and the severity of schizophrenia symptoms.
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  • Metabolic syndrome (MetS) is prevalent among individuals with schizophrenia, particularly worsened by long-term use of atypical antipsychotic medications.
  • A study of 195 schizophrenia patients found that those with MetS had significantly higher leptin levels and lower ghrelin levels compared to those without MetS.
  • Insulin levels showed no significant difference between the two groups, and while some correlations between hormone levels and body characteristics were observed, they were more common in individuals without MetS, highlighting the distinct hormonal influences in this condition.
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  • * In a study of 112 paranoid schizophrenia patients, 39 were identified with MetS; those with MetS had elevated levels of specific acylcarnitines and branched-chain amino acids compared to those without MetS.
  • * The research indicated lower levels of certain carnitines in schizophrenia patients versus healthy individuals, suggesting that antipsychotic medications might impact energy metabolism by affecting a key enzyme responsible for fat metabolism.
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  • Metabolic syndrome is common among schizophrenia patients on long-term antipsychotic treatment, which can result from the effects of dopamine D2 receptors.
  • The study analyzed 517 schizophrenia patients in Siberia, focusing on two specific genetic variations in the DRD2 gene and their link to metabolic syndrome.
  • Findings suggest that a particular variation (rs1799732) is associated with drug-induced metabolic syndrome in women, pointing to the potential for targeted genetic treatments to improve patient outcomes.
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Background: Tardive dyskinesia (TD) is an extrapyramidal side effect of the long-term use of antipsychotics. In the present study, the role of glutamatergic system genes in the pathogenesis of total TD, as well as two phenotypic forms, orofacial TD and limb-truncal TD, was studied.

Methods: A set of 46 SNPs of the glutamatergic system genes (, , , , , , , , ) was studied in a population of 704 Caucasian patients with schizophrenia.

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Objectives: Because alcohol use disorder (AUD) is often accompanied by mood disorder (MD) and both alcoholism and depression result in activation of the immune system, this study compares serum cytokine levels in the presence of co-morbidity with those in either AUD or MD alone.

Methods: In this naturalistic prospective study the levels of 15 different cytokines were measured in serum samples of patients with MD ( = 43), participants with combined AUD-MD ( = 44) and AUD without MD ( = 42). The levels were compared cross-sectionally among themselves and with those in 50 healthy volunteers.

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  • The study investigates the role of the habenula, a brain structure linked to depression, specifically focusing on the impact of phosphodiesterase 7A (PDE7A) and genetic variations associated with it.
  • Researchers analyzed habenula volume using MRI in patients with major depressive disorder and healthy controls, while also examining specific genetic mutations.
  • Results indicated that, although overall habenula volume did not change in MDD patients, those carrying certain genetic mutations had a smaller left habenula, suggesting a potential link between genetic factors and habenula structure in depression.
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Background: Metabolic syndrome (MetS) is a common complication of long-term treatment of persons with schizophrenia taking (atypical) antipsychotics. In this study, we investigated the existence of an association with polymorphisms of genes for four hormones that regulate energy metabolism.

Methods: We recruited 517 clinically admitted white patients (269M/248F) with a verified diagnosis of schizophrenia (ICD-10) and with a stable physical condition.

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This article develops the idea that clinical depression can be seen as a typical human response, largely rooted in human culture, to events of loss or times of adversity. Various biological, psychological, and social factors may cause some individuals to have a depressive reaction that is ineffectually limited in time and/or severity. Recovery occurs mainly based on natural resilience mechanisms, which come into play spontaneously, but which are sometimes inhibited or blocked by specific pathological biopsychosocial mechanisms.

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Background: The neuropeptides β-endorphin and oxytocin are released into the bloodstream as hormones from the pituitary gland but also have an important function as neuroregulators in the forebrain. The blood levels of both polypeptides have been shown to reflect depressive symptoms. β-Endorphin, in particular, is also involved in abstinence from alcohol.

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Background: Many antidepressants are substrates of P-glycoprotein, an efflux transporter in the blood-brain-barrier encoded by the ABCB1 gene. Genetic variations might influence the transport rate of antidepressants and hence their pharmacological effects. This study investigates the influence of eight polymorphisms in the ABCB1 gene on antidepressant treatment response.

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Background: Schizophrenia is a complex mental disorder with a high heritability. Dysfunction of the N-methyl-D-aspartate (NMDA)-type glutamate receptors may be involved in the pathogenesis of schizophrenia. In this study, we examined the contribution of and (Glutamate Ionotropic Receptor NMDA Type Subunit 2A/2B) polymorphisms to the clinical features of schizophrenia, such as the leading symptoms, the type of course, and the age of onset.

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Background: Alcohol use disorder (AUD) not only influences individuals and families but also has a lasting social impact on communities at the national level. Dopaminergic neurotransmission is involved in excessive alcohol consumption. Phosphatidylinositol-5-phosphate-4-kinase type 2 α (PIP4K2A) plays an important role in the regulation of ascending dopamine pathways.

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