Publications by authors named "Mukhina A"

Macromolecular assembly depends on tightly regulated pairwise binding interactions that are selectively favored at assembly sites while being disfavored in the soluble phase. This selective control can arise due to molecular density-enhanced binding, as recently found for the kinetochore scaffold protein CENP-T. When clustered, CENP-T recruits markedly more Ndc80 complexes than its monomeric counterpart, but the underlying molecular basis remains elusive.

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  • * A pilot screening program in Russia analyzed 202,908 newborns, finding 157 with trisomy 21, indicating a birth prevalence of 1:1,284, and explored their lymphocyte levels (TREC and KREC).
  • * Results showed reduced TREC values in DS newborns, similar to extremely preterm infants, and significant KREC differences from the general newborn population, highlighting the need for deeper research into immune development in DS and better support from healthcare teams.
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  • A male newborn was found to have low TREC values, indicating T cell lymphopenia, and genetic testing revealed a mutation linked to Ectrodactyly-Ectodermal Dysplasia-Cleft lip/palate syndrome (EEC).
  • This case underscores the importance of further research on the immune system issues related to mutations in the TP63 gene, suggesting that patients with such mutations should undergo thorough immunological assessments.
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  • A study analyzed genetic defects in 1809 Russian children with inborn errors of immunity (IEI), finding that 61.5% had identifiable genetic issues.
  • The defects predominantly involved single gene variants (87.9%), with a significant portion of variants being novel, highlighting the genetic diversity within this population.
  • Inherited patterns of defects showed a mix of autosomal dominant (29%), X-linked (34%), and autosomal recessive (37%), with notable cases of "Slavic" mutations contributing to the findings.
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Unlabelled: Search and development of new physiotherapeutic technologies of regenerative medicine for the treatment of patients with different diseases is an urgent task of modern medicine.

Objective: To analyze scientific data on the effectiveness of the peripheral magnetic stimulation (PMS) application in patients with different diseases.

Material And Methods: An analysis of publications in databases of electronic resources (PEDro, PubMed, Embase, eLibrary, Cochrane Library) over the past 20 years was carried out, the results of PMS application in patients with different nosologies were presented.

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Newborn screening (NBS) for severe inborn errors of immunity (IEI), affecting T lymphocytes, and implementing measurements of T cell receptor excision circles (TREC) has been shown to be effective in early diagnosis and improved prognosis of patients with these genetic disorders. Few studies conducted on smaller groups of newborns report results of NBS that also include measurement of kappa-deleting recombination excision circles (KREC) for IEI affecting B lymphocytes. A pilot NBS study utilizing TREC/KREC detection was conducted on 202,908 infants born in 8 regions of Russia over a 14-month period.

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Macromolecular assembly depends on tightly regulated pairwise binding interactions that are selectively favored at assembly sites while being disfavored in the soluble phase. This selective control can arise due to molecular density-enhanced binding, as recently found for the kinetochore scaffold protein CENP-T. When clustered, CENP-T recruits markedly more Ndc80 complexes than its monomeric counterpart, but the underlying molecular basis remains elusive.

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  • - Mutations in the RAC2 protein are linked to various immune disorders in patients, including neonatal SCID and infantile diseases resembling leukocyte adhesion deficiency, with 15 new mutations identified among 54 patients studied.
  • - The study highlighted that different types of mutations in RAC2 influenced disease outcomes; for instance, certain mutations led to neonatal SCID while others caused later-onset combined immune deficiency or LAD-like diseases.
  • - Clinical analysis revealed significant immune system issues among affected patients, including low levels of T and B cells, recurrent infections, and abnormalities in neutrophil function, indicating severe impacts on their immune response.
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Background: Activated phosphoinositide-3-kinase δ syndrome (APDS) is an inborn error of immunity (IEI) with infection susceptibility and immune dysregulation, clinically overlapping with other conditions. Management depends on disease evolution, but predictors of severe disease are lacking.

Objectives: This study sought to report the extended spectrum of disease manifestations in APDS1 versus APDS2; compare these to CTLA4 deficiency, NFKB1 deficiency, and STAT3 gain-of-function (GOF) disease; and identify predictors of severity in APDS.

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  • The J Project (JP) is a collaborative program aimed at improving physician education and clinical research on inborn errors of immunity (IEI), established in 2004 and currently spanning 32 countries, primarily in Eastern and Central Europe.
  • By the end of 2021, JP organized 344 meetings to enhance awareness and improve diagnosis and treatment for patients with IEI, with a significant increase in annual meetings over the years.
  • Data from patient reports across 30 countries indicated a prevalence of 4.9 patients per population, mostly featuring patients with predominantly antibody deficiency, along with a strong commitment to treatments like immunoglobulin substitution and hematopoietic stem cell therapy.
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The effects of the peptide ACTH(6-9)-Pro-Gly-Pro at doses of 5; 50; 500 μg/kg on the Wistar rats' behaviour and gut mucosal microbiota composition under conditions of chronic immobilization stress (CRS) were studied. CRS increased anxiety-like and depressive-like behaviour, disturbances in locomotor activity and gut dysbiosis. Administration of ACTH(6-9)-Pro-Gly-Pro showed many phenotypic results.

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Unlabelled: Underwater traction of the spine is a physiotherapeutic method that combines the effects of mechanical traction and fresh water of indifferent temperature and seems promising for the treatment of pain in the lower back, which is due to the physiological basis of the mechanism of action on the spinal motion segment by eliminating muscle spasm and restoring the biomechanics of the spine.

Objective: To study the effectiveness of underwater horizontal traction in combination with mechanotherapy in patients with non-stenosing unstable degenerative spondylolisthesis of the lumbosacral spine of the 1st degree, accompanied by pain.

Material And Methods: The clinical study included 14 patients (mean age 50.

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Background: Bacillus Calmette-Guierin (BCG) vaccination complications are common in inborn errors of immunity (IEI) due to the inability to clear live attenuated Mycobacterium bovis. Various BCG-vaccine strains are used worldwide, and the profile of the Russian BCG strain vaccine complications in IEI is poorly characterized.

Objective: To evaluate risks of BCG infection in a large cohort of patients with IEI vaccinated with the Russian BCG strain.

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Background: Interstitial lymphocytic lung disease (ILLD), a recently recognized complication of primary immunodeficiencies (PID), is caused by immune dysregulation, abnormal bronchus-associated lymphoid tissue (BALT) hyperplasia, with subsequent progressive loss of pulmonary function. Various modes of standard immunosuppressive therapy for ILLD have been shown as only partially effective.

Objectives: To retrospectively evaluate the safety and efficacy of abatacept or rituximab in treatment of ILLD in children with PID.

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Background: Activated phosphoinositide 3-kinase delta syndrome (APDS) is a combined immunodeficiency with a heterogeneous phenotype considered reversible by allogeneic hematopoietic cell transplantation (HCT).

Objectives: This study sought to characterize HCT outcomes in APDS.

Methods: Retrospective data were collected on 57 patients with APDS1/2 (median age, 13 years; range, 2-66 years) who underwent HCT.

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The pioneer transcription factor (TF) PU.1 controls hematopoietic cell fate by decompacting stem cell heterochromatin and allowing nonpioneer TFs to enter otherwise inaccessible genomic sites. PU.

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We studied the effect of intraperitoneal administration ACTH-PGP in doses of 5, 50, 150, and 450 μg/kg to Wistar male rats 12-15 min before modeling restraint stress on the morphofunctional state of the colon. In rats exposed to restraint stress, signs of atrophy and inflammatory reaction in the colon wall, changes in functional activity and number of mast cells, and increased serum level of corticosterone were observed. Administration of the peptide led to a decrease in corticosterone concentration, alleviated stress-induced pathomorphological changes, and promoted adaptation of the intestinal wall to stress.

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High requirements for macro- and micronutrients of the organism of a pregnant woman living in the Far North are associated with the influence of extreme factors of high latitudes, and the needs of the mother and the growing fetus. Only the products of the unique food culture of the Arctic people - the Nenets, make it possible to meet the emerging needs. of the work was to study the impact of traditional nutrition on the reproductive health of Nenets women living in the Arctic zone of Western Siberia.

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Primary immunodeficiencies (PID) are a group of rare genetic disorders with a multitude of clinical symptoms. Characterization of epidemiological and clinical data via national registries has proven to be a valuable tool of studying these diseases. The Russian PID registry was set up in 2017, by the National Association of Experts in PID (NAEPID).

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We studied the effect of Semax on the state of intestinal microbiota in rats subjected to restraint stress. Semax was injected to Wistar male rats intraperitoneally in doses of 5, 50, 150, 450 μg/kg 12-15 min before modelling chronic restraint stress. It was found that stress exposure reduced the number of obligate bacteria in the colon microbiota, but increased the content of opportunistic microorganisms.

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We studied the effects of Selank on the condition of the colon wall in Wistar male rats subjected to restraint stress. Selank was injected intraperitoneally in doses of 80, 250, and 750 μg/kg 15 min before stress exposure. In rats subjected to stress, signs of atrophy, inflammatory reaction, and changes in the number and functional activity of mast cells were observed against the background of increased corticosterone level.

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Introduction: Hydrogalvanic baths are a hydrotherapy method based on the combined effect of electric current and fresh water on the body.

Aim Of Study: Scientific evidence and evaluation of the effectiveness of use of general hydrogalvanic baths in the treatment of patients with lumbosacral radiculopathy with the background of degenerative spinal disorder.

Materials And Methods: A randomized comparative clinical trial included 84 patients.

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Background: Recent findings strongly support hematopoietic stem cell transplantation (HSCT) in patients with severe presentation of LPS-responsive beige-like anchor protein (LRBA) deficiency, but long-term follow-up and survival data beyond previous patient reports or meta-reviews are scarce for those patients who do not receive a transplant.

Objective: This international retrospective study was conducted to elucidate the longitudinal clinical course of patients with LRBA deficiency who do and do not receive a transplant.

Method: We assessed disease burden and treatment responses with a specially developed immune deficiency and dysregulation activity score, reflecting the sum and severity of organ involvement and infections, days of hospitalization, supportive care requirements, and performance indices.

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We studied the effects of Selank on intestinal microbiota in Wistar male rats subjected to chronic restraint stress. Selank was injected intraperitoneally in doses of 80, 250 and 750 μg/kg 15 min before stress exposure. Chronic restraint stress led to a decrease in the content of obligate microflora, while the content of opportunistic microorganisms increased.

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Background: Children with very early onset inflammatory bowel diseases (VEO-IBD) often have a refractory and severe disease course. A significant number of described VEO-IBD-causing monogenic disorders can be attributed to defects in immune-related genes. The diagnosis of the underlying primary immunodeficiency (PID) often has critical implications for the treatment of patients with IBD-like phenotypes.

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