Publications by authors named "Roshal' L"

Defining cellular and subcellular structures in images, referred to as cell segmentation, is an outstanding obstacle to scalable single-cell analysis of multiplex imaging data. While advances in machine learning-based segmentation have led to potentially robust solutions, such algorithms typically rely on large amounts of example annotations, known as training data. Datasets consisting of annotations which are thoroughly assessed for quality are rarely released to the public.

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Brain biomarkers (protein S100b and neuron-specific enolase (NSE)), antibodies (aAb) to the NR2 subunit of N-methyl-D-aspartate (NR2(NMDA)) and to the GluR1 subunit of the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (GluR1(AMPA)) subtype of glutamate receptors (GluR), NR2 and AMPA peptides, nitrogen oxides (NOx; "nitrites and nitrates"), and 3-nitrotyrosine (NT) were measured in blood from 159 children after mild traumatic brain injury (mTBI), moderate traumatic brain injury (mdTBI), or severe traumatic brain injury (sTBI) within 1-2 days and at intervals during the first 15 days after brain trauma. S100b and NSE levels on the first day were not a strict criterion for injury outcomes. Children with mTBI had the most significant elevations in antibodies to NR2(NMDA) and AMPA peptides, a slight increase in NOx, and, in 25% of cases, appearance of NT in the blood right after TBI.

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Objective: To compare apolipoprotein E (APOE) genotypes with outcomes and levels of neuromarkers in children with severe traumatic brain injury (TBI).

Material And Methods: APOE polymorphisms were genotyped in 69 children with severe TBI. The following markers of brain damage were identified: neuron-specific enolase (NSE), glial protein S100b, content of autoantibodies (aAB) to glutamate receptors (to the NR2 subunit of NMDA receptors), aAB to S100b and brain-derived neurotrophic factor (BDNF).

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Extramammary Paget disease (EMPD) is a rare cutaneous adenocarcinoma of the anogenital region most commonly treated with surgical excision. Surgical margin clearance is often problematic and recurrence rates remain high indicating the need for additional therapeutic options. Topical immunomodulators have been used with reported success suggesting EMPD may respond to other immunotherapies.

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The craniocerebral injury is a global problem of health care and society. The fatal and incapacitating aftermaths developed because of this type of trauma result in significant social and economic losses. To develop effective measures of decreasing these losses epidemiological studies are needed to be implemented considering gender, age, regional and other characteristics.

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Purpose: We sought to determine the mechanism of an exceptional response in a patient diagnosed with a SMARCB1/INI1-negative chordoma treated with tazemetostat, an EZH2 inhibitor, and followed by radiotherapy. In an attempt to investigate the mechanism behind this apparent abscopal effect, we interrogated tumor tissues obtained over the clinical course. We utilized next-generation sequencing, standard IHC, and employed a novel methodology of multiplex immunofluorescence analysis.

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Objectives: Prognostic value of intracranial pressure (ICP) is discussed in the recent literature. The aim of our study was to find the parameter that could be representative of ICP variations and might become a good predictor of severe traumatic brain injury (TBI) outcomes in children.

Materials And Methods: The study included 81 patients with severe TBI (2004-2014).

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Aim: To study the changes in the key angiogenic factors VEGF-A and angiogenin (ANG) in children with different outcomes of combined injuries.

Material And Methods: Contents of VEGF-A and ANG in blood serum were determined by enzyme immunoassay. The study included 40 patients, 21 boys and 19 girls.

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This article was designed to report the experience with the provision of early rehabilitation care to the children suffering from a spinal-cord injury (SCI) that was gained at the Clinical and Research Institute of Urgent Pediatric Surgery and Traumatology. The authors have developed and describe the combined multidisciplinary approach making it possible to promote the recovery of the children presenting with SCI at the first stage of the rehabilitative treatment. They distinguish three basic periods in the early rehabilitation of the children with this condition, defined the main goals of rehabilitation and the role of each specialist in their achievement.

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Objective: to study the content of biomarkers of diagnostic and prognostic value in the assessment of traumatic brain injury (TBI) severity in children.

Material And Methods: Authors determined the levels of glial protein S100B, neuronspecific enolase (NSE), autoantibodies (aAb) to glutamate receptors and natural autoantibodies (nAb) to S100B and brain-derived neurotrophic factor (BDNF) in serum/plasma of children with different outcomes of TBI. All parameters were analyzed in the 1-3rd, 7-8th, 14-15th and 20-23rd days after TBI, and, in some cases of severe brain injury and long stay patients in hospital, in 11-12 months after TBI.

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Backgraund: It is known that mitochondria play an important role in the mechanisms of brain cells damage and death following traumatic brain injury (TBI). However, the relationship between the severity of brain damage following TBI and mitochondrial dysfunction are not well defined.

Aim: to study activities of NADN- and succinate dehydrogenases, a key enzyme of mitochondrial oxidative phosphorylation in children with TBI of varying severity and different outcomes; to detect ATP content in lymphocytes; the level of NOx and 3-nitrotyrosine in serum and plasma.

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The article presents the authors' experience of providing specialized surgical care for 197 children who had been affected by the earthquake in Pakistan (2005), Indonesia (2006 and 2009) and Haiti (2010). All victims had open injuries of soft tissues and bones. The article recites the strategy and principles of work organization of the mobile team of specialists from the Research Institute of Clinical and Research Institute of Urgent Pediatric Surgery and Traumatology in disaster areas.

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An objective of the study was to search for new biologically significant markers of brain damage. Levels of blood serum autoantibodies (aAB) to different fragments of α7-subunit of acetylcholine receptor (ACR) were studied in children with traumatic brain injury of different severity. The more severe was trauma, the higher was the level of aAB to fragments of α7-subunit of ACR in the first week after trauma.

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Levels of antibodies AB (AB) to S100B and S100B protein were studied in the blood serum of children with different severity and outcomes of traumatic brain injury (TBI) from the 1st to 15-75th days after TBI. Severity and outcomes were assessed using the Glasgow Coma Scale (GCS). Patients were stratified by outcomes into the following groups: complete recovery (group 1), moderate disability (group 2), high disability (group 3), vegetative state (group 4) and fatal outcome (group 5).

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We studied the effect of systemic transplantation of human stem cells from various tissues on cognitive functions of the brain in rats during the delayed period after experimental brain injury. Stem cells were shown to increase the efficacy of medical treatment with metabolic and symptomatic drugs for recovery of cognitive functions. They accelerated the formation of the conditioned defense response.

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We studied the effect of transplantation of human stem cells from various tissues on reparative processes in the brain of rats with closed craniocerebral injury. Combined treatment with standard drugs and systemic administration of xenogeneic stem cells had a neuroprotective effect. The morphology of neurons rapidly returned to normal after administration of fetal neural stem cells.

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Levels of serum autoantibodies (aAb) to glutamate receptors and products of nitric oxide (NO) metabolism, i.e., nitrates and nitrites, were assayed in children with recent craniocerebral trauma (CCT) of different levels of severity.

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Autoantibodies (AB) to glutamate receptors of AMPA (Glur1) and NMDA (NR2A) types and nitric oxide metabolites, nitrates and nitrites (NOx), were studied in the blood serum of children with brain trauma of different severity. The level of both AB types increased from the 1st to the 10th day after trauma. The level of NMDA (NR2A) AB was higher comparing to AMPA (Glur1).

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We studied the effects of systemic transplantation of mesenchymal stem cells obtained after culturing of autologous bone marrow on psychophysiological status of Wistar rats after diffuse brain trauma. Two months after systemic injection of mesenchymal stem cells we observed a decrease in manifestations of emotional behavioral reactions (anxiety and excitability) and shortening of the time of realization of drinking behavior in a T-maze. A significant positive effect of systemic transfusion of mesenchymal stem cells on avoidance conditioning in a shuttle box was observed 3 months after brain injury.

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We report here studies on the levels of autoantibodies (aAb) to AMPA glutamate receptors (GluR1 subunit) and NMDA glutamate receptors (NR2A subunit) in serum from 60 children aged 7-16 years with chronic posttraumatic headache (CPTHA) following mild craniocerebral trauma (CCT). The first group consisted of 48 children who had sustained cerebral concussion (CC), of which 34 had single-episode CC (subgroup 1a) and 14 had repeated CC (subgroup 1). The second group included 12 children with mild cerebral contusions (MCC).

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Effects of systemic transplantation of mesenchymal stem cells obtained by culturing of autologous bone marrow on proliferative activity of cells and functional morphology of neurons after diffuse brain injury were studied in Wistar rats. Comparative analysis of the results indicated that systemic injection of mesenchymal stem cells in a syngeneic organism produced proliferotropic, angiogenic, and, presumably, neurotrophic effects. The therapeutic effect visually manifested on day 2 after intravenous injection of mesenchymal stem cells during the early period of reparative regeneration of ischemic cell and tissue structures of the brain.

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Autoantibodies (aAB) to AMPA (Glu R1 subunit) and NMDA (NR 2A subunit) glutamate receptors were studied in blood serum of 60 children, aged 7-16 years, with chronic posttraumatic headache after mild skull injury. All the children were divided into 2 groups: group 1 included 48 children with concussion of the brain, group 2--12 children with brain contusion. Group 1 was divided into 2 subgroups: subgroup 1a comprised 34 children with single concussion and subgroup 1b--14 children with repeated concussion.

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A total of 65 patients, aged 3 to 14, with different forms of appendicular peritonitis, in whom the intestinal insufficiency syndrome (IIS), stage 2, was diagnosed, were investigated. 35 patients were in the main group, and 30 patients were in the control group; the subjects of the latter group had a similar form of peritonitis, i.e.

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