Publications by authors named "Ovsanna Avetisyan"

Early life trauma has been shown to facilitate habitual behavior, which may predispose individuals toward perpetuating maladaptive behaviors. However, previous investigations did not account for other traumatic childhood experiences like racial/ethnic discrimination exposure, nor have they examined the interaction of trauma and habits on real-world adverse outcomes. To examine these effects, we recruited 96 young adults (20.

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This study aimed to present a complete overview of the trends, difficulties, and improvements in dental treatment for children diagnosed with autism spectrum disorder through rigorous bibliometric analysis. The dimensional database field was chosen to enable the inclusion and recall of the greatest number of relevant entries. All peer-reviewed international journals published between 2004 and 2023 were included in this study.

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As a potential corridor connecting Southwest Asia with western and northern Europe, the Armenian Highlands and southern Caucasus hold great potential for increasing our understanding of Upper Paleolithic behavioral and cultural variability. However, given the dearth of Upper Paleolithic sites, we lack the data necessary to answer basic questions regarding the timing and nature of the Upper Paleolithic in this region. Solak-1 is an open-air site located along the upper Hrazdan Valley (1635 m above sea level) in central Armenia.

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Recent studies have demonstrated the association between constitutional ring chromosome 21 (r(21)c) and the development of B-cell acute lymphoblastic leukemia (B-ALL) with intrachromosomal amplification of chromosome 21 (iAMP21). iAMP21 acts as a driver which is often accompanied by secondary alterations that influence disease progression. Here, we report an atypical case of iAMP21 B-ALL with a unique molecular profile in the context of r(21)c.

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How neurons to sense when they are terminally dysfunctional and activate neurodegeneration remains poorly defined. The pro-degenerative NAD hydrolase dSarm/SARM1 can act as a metabolic sensor by detecting pathological changes in NAD /NMN and subsequently induce catastrophic axon degeneration. Here we show with-no-lysine kinase (dWnk), which can directly sense Cl , K and osmotic pressure, is required for neurodegeneration induced by depletion of the NAD biosynthetic enzyme dNmnat.

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The synthesis of enantiomeric forms of D-amino acids can be achieved by a two-step "hydantoinase process" based on the sequential catalysis of substrates by specific enzymes, D-carbamoylase and D-hydantoinase. Here, we describe the structural features of D-carbamoylase from , the encoded gene of which was chemically synthesized and cloned into . A significant fraction of the overexpressed recombinant protein forms insoluble inclusion bodies, which are partially converted to a soluble state upon treatment with N-lauroylsarcosine or upon incubation of cells at 28 °C.

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The study was carried out electrophysiological effects of hydrocortisone for protection on the prelimbic cortex (PrL) neurons in rats, particularly in response to high-frequency stimulation (HFS) of the Caudate-Putamen nuclear complex (CPu) on the models of Parkinson's disease (PD). The study involved 19 rats of the Albino line, each weighing 250 gr. The rats were divided into three experimental groups: intact, rotenone model of Parkinson's disease (PD), and rats with PD but treated with hydrocortisone for protection.

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Background And Objective: Collagen biosynthesis is intricately involved in the development and progression of solid tumors. Renin-angiotensin system inhibitors (RASi) impede TGF-β-mediated collagen synthesis in tumors by hindering activation of the angiotensin receptor. Our aim was to investigate a potential association between RASi use and the aggressiveness of prostate cancer (PCa).

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Article Synopsis
  • The study explores the role of 2,3-bisphosphoglycerate mutase (BPGM) in the kidney, highlighting its upregulation during acute kidney injury in both mice and humans.
  • Using a specialized mouse model, researchers found that BPGM is mainly located in the distal nephron and its knockout led to rapid kidney injury and structural damage after just four days.
  • The absence of BPGM disrupts crucial metabolic processes, elevating oxidative stress and inflammation while linking stress responses between different parts of the nephron, underscoring its importance in kidney function.
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: The most important phase in the endometrial pathologies diagnostics is the histological examination of tissue biopsies obtained under visual hysteroscopic control. However, the unclear visual diagnostics characteristics of subtle focal endometrial pathologies often lead to selection errors regarding suspicious endometrial lesions and to a subsequent false pathological diagnosis/underestimation of precancer or early-stage cancer. : In this study, we investigate the potential of Multimodal Optical Coherence Tomography (MM OCT) to verify suspicious endometrial lesion regions before biopsy collection.

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Background: A pivotal objective in crop production and plant protection lies in developing environmentally friendly insecticidal preparations and biostimulants.

Methods: We employed strains with varied insecticidal spectra and engineered melanogenic mutants.

Results: We demonstrated a significant increase in insecticidal activity in the isolated mutants.

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Allogeneic stem cell transplantation (Allo-SCT) implies that a donor and a recipient are not genetically identical. Allo-SCT is used to cure a variety of conditions, including hematologic malignancies using the graft versus tumor effect, nonmalignant hematologic, immune deficiencies, and, more recently, genetic disorders and inborn errors of metabolism. Given the immunosuppressive and myeloablative nature of some of the conditioning chemotherapy regimens used during the Allo-SCT, patients are often at high risk of infection, including viral infections affecting the gastrointestinal tract, following the transplant.

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The spread of the African swine fever virus (ASF virus) genotype ii in the Eurasian region has been very successful and often inexplicable. The virus spreads rapidly and persists in areas with wild boar populations, but areas without feral pig populations are also affected. The virus has shown the ability to survive for a long time in the environment without a population of susceptible hosts, both pigs and Ornithodoros soft ticks.

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Article Synopsis
  • The study investigates the antiviral effects of newly synthesized heterocyclic compounds against SARS-CoV-2, aiming to explore their potential as treatment options due to the severity of COVID-19.
  • The research utilized various methods including cell culturing and qRT-PCR to analyze the compounds' effectiveness, showing that they significantly reduced the viral load and improved symptoms in infected hamsters.
  • Results indicated that these compounds not only decreased SARS-CoV-2 replication in vitro but also positively affected pathological changes in hamsters, suggesting their potential for further development as antiviral drugs.
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Background: Cytokines play an important role in the immunopathogenesis of dental caries. A systematic review and meta-analysis was carried out with the following three objectives: 1)To deepen and discuss through a comprehensive analysis of the literature the effects of dental caries on the activity and levels of TNF-α, IL-6 and IL-8 in saliva of children and young adults, 2)To compare the levels of this cytokines in saliva of the exposure group (moderate-severe dental caries) with the control group (caries-free or mild dental caries), and 3)To determine whether the levels of these cytokines could be used as a complementary clinical diagnostic tool to assess the severity of dental caries.

Methods: The protocol followed PRISMA and Cochrane guidelines and was registered in the Open Science Framework (OSF): https://doi.

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Thyroxine, a key regulator of metabolic pathways, plays a pivotal role in glucose metabolism and the maintenance of glucose homeostasis. In clinical practice, L-thyroxine replacement therapy is commonly prescribed for patients with hypothyroidism. However, the specific effects of L-thyroxine and thyroidectomy (TX) on glucose levels remain an area of interest and investigation.

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A comparative study of the morphological and functional state of the microvasculature of the substantia nigra pars compacta of the brain (SNc) and bone marrow of rats was carried out using the rotenone model of Parkinson's disease (PD) and with subsequent administration of bacterial melanin (BM). The detection of microvasculature was carried out according to the histoangiological method of Chilingaryan. Animal behavior was studied using a cylinder test.

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Lipid peroxidation plays an important role in various pathologies and aging, at least partially mediated by ferroptosis. The role of mitochondrial lipid peroxidation during ferroptosis remains poorly understood. We show that supplementation of exogenous iron in the form of ferric ammonium citrate at submillimolar doses induces production of reactive oxygen species (ROS) and lipid peroxidation in mitochondria that precede ferroptosis in H9c2 cardiomyocytes.

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Objective: This study aimed to provide valuable insights into the current research status and gaps in digital intraoral scanner literature in dentistry.

Methodology: Scopus Search Query TITLE-ABS-KEY (intraoral AND scanners AND (dentistry OR digital AND dentistry)). The search query used in Scopus for the bibliometric analysis was "TITLE-ABS-KEY (intraoral AND scanners AND (dentistry OR digital AND dentistry)).

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We aimed to investigate the role of pre-, peri- and neonatal risk factors in the development of autism spectrum disorder (ASD) among Armenian children with the goal of detecting and addressing modifiable risk factors to reduce ASD incidence. For this purpose a retrospective case-control study using a random proportional sample of Armenian children with ASD to assess associations between various factors and ASD was conducted. The study was approved by the local ethical committee, and parental written consent was obtained.

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Purpose: Virtual reality (VR) simulations have been increasingly employed to train dental students prior to clinical practice. According to the literature, blended learning designs in the form of VR simulations can be utilized by both dental students and instructors to provide quality education. They can also save time and improve motor skills before students enter clinical stages.

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Background: Dental resin-based composites are widely recognized for their aesthetic appeal and adhesive properties, which make them integral to modern restorative dentistry. Despite their advantages, adhesion and biomechanical performance challenges persist, necessitating innovative strategies for improvement. This study addressed the challenges associated with adhesion and biomechanical properties in dental resin-based composites by employing molecular docking and dynamics simulation.

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Aim: The integration of advanced technologies, including three-dimensional (3D) imaging modalities and virtual simulations, has significantly influenced contemporary approaches to preoperative planning in implant dentistry. Through a meticulous analysis of relevant studies, this review synthesizes findings related to accuracy outcomes in implant placement facilitated by 3D imaging in virtual patients.

Methods: A comprehensive literature search was conducted across relevant databases to identify relevant studies published to date.

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Background: The African swine fever (ASF) virus (ASFV) and ASF-like viral sequences were identified in human samples and sewage as well as in different water environments. Pigs regularly experience infections by the ASFV. The considerable stability of the virus in the environment suggests that there is ongoing and long-term contact between humans and the ASFV.

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