Aleksandra Agafonova

ORCID: 0000-0001-8253-0598
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About
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Research Areas
  • Retinal Diseases and Treatments
  • Drug-Induced Hepatotoxicity and Protection
  • Advanced Glycation End Products research
  • Hearing, Cochlea, Tinnitus, Genetics
  • Mesenchymal stem cell research
  • Veterinary Pharmacology and Anesthesia
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Poisoning and overdose treatments
  • Obesity, Physical Activity, Diet
  • Air Quality and Health Impacts
  • Olfactory and Sensory Function Studies
  • Ear and Head Tumors
  • Free Radicals and Antioxidants
  • Angiogenesis and VEGF in Cancer
  • Animal Nutrition and Physiology
  • Retinopathy of Prematurity Studies
  • Neuroendocrine regulation and behavior
  • Photoacoustic and Ultrasonic Imaging
  • Cancer, Hypoxia, and Metabolism
  • Vestibular and auditory disorders
  • Smoking Behavior and Cessation
  • Retinal Imaging and Analysis
  • Neurological Disease Mechanisms and Treatments
  • Heavy Metal Exposure and Toxicity
  • Livestock and Poultry Management

University of Catania
2021-2025

Ospedale G.F. Ingrassia
2023

Diabetic retinopathy (DR) is characterized by morphologic and metabolic alterations in endothelial cells (ECs) pericytes (PCs) of the blood–retinal barrier (BRB). The loss interendothelial junctions, increased vascular permeability, microaneurysms, finally, EC detachment are main features DR. In this scenario, a pivotal role played extensive PCs. Based on previous results, aim study was to assess possible beneficial effects exerted adipose mesenchymal stem (ASCs) their pericyte-like...

10.3390/ijms24020913 article EN International Journal of Molecular Sciences 2023-01-04

The blood-retinal barrier (BRB) is strongly compromised in diabetic retinopathy (DR) due to the detachment of pericytes (PCs) from retinal microvessels, resulting increased permeability and impairment BRB. Western blots, immunofluorescence ELISA were performed on adipose mesenchymal stem cells (ASCs) pericyte-like (P)-ASCs by co-cultured human endothelial (HRECs) under hyperglycemic conditions (HG), as a model DR. Our results demonstrated that: (a) platelet-derived growth factor receptor...

10.3390/ijms25031774 article EN International Journal of Molecular Sciences 2024-02-01

Polychlorinated biphenyls (PCBs) are heterogeneous, synthetic, and widespread organochlorine compounds, one of the persistent organic pollutants present in improperly dumped waste electronic equipment (e-waste), with a high bioaccumulation potential. In this study, toxicity Aroclor 1254 (a mixture commercial PCBs) human corneal epithelial cells (HCEpiCs), an vitro model ocular barrier, was evaluated. (0.1–10 μg/mL) reduced cell viability, trans-endothelial electric resistance (TEER)...

10.3390/ijms26030916 article EN International Journal of Molecular Sciences 2025-01-22

Reactive oxygen species (ROS) accumulation plays a pivotal role in the onset of cell damage induced by hyperglycemia and represents one major factors pathogenesis diabetic retinopathy. In this study, we tested antioxidants cyanidin-3-O-glucoside (C3G) verbascoside (Verb) protection retinal endothelium against glucose toxicity "in vitro".Increasing amounts (5-50 μM) C3G, Verb or combination both compounds were Human Retinal Endothelial Cells (HREC) grown with normal (5 mM, NG) high (25...

10.31083/j.fbl2711308 article EN cc-by Frontiers in Bioscience-Landmark 2022-11-17

Hypoxia compromises the integrity of blood-brain barrier (BBB) and increases its permeability, thereby inducing inflammation. Olfactory ensheathing cells (OECs) garnered considerable interest due to their neuroregenerative anti-inflammatory properties. Here, we aimed investigate potential modulatory effects OEC-conditioned medium (OEC-CM) on response human brain microvascular endothelial (HBMECs), constituting BBB, when exposed hypoxia. HBMECs were utilized establish in vitro BBB model. OECs...

10.1007/s12035-024-04517-6 article EN cc-by Molecular Neurobiology 2024-10-07

The stria vascularis (SV) contributes to cochlear homeostasis and consists of three layers, one which contains the blood-labyrinthic barrier (BLB), with a large number bovine pericytes (BCPs). Cisplatin is chemotherapeutic drug that can damage SV cause hearing loss. In this study, cell viability, proliferation rate, cytotoxicity reactive oxygen species production were evaluated. protein content phospho-extracellular signal-regulated kinases (ERK) 1/2, total ERK phospho-cytosolic...

10.3390/ijms232415790 article EN International Journal of Molecular Sciences 2022-12-13

Hyperglycemia-induced impairment of the blood-retinal barrier represents main pathological event in diabetic retinopathy that is elicited by a reduced cellular response to an accumulation reactive oxygen species (ROS) and increased inflammation. The purpose study was evaluate whether selective β1-adrenoreceptor (β1-AR) antagonist metoprolol could modulate inflammatory hyperglycemic conditions. For this purpose, human retinal endothelial cells (HREC) were treated with normal (5 mM) or high...

10.3390/cells11010051 article EN cc-by Cells 2021-12-24

Lignans, a class of secondary metabolites found in plants, along with their derivatives, exhibit diverse pharmacological activities, including antioxidant, antimicrobial, anti-inflammatory, and antiangiogenic ones. Angiogenesis, the formation new blood vessels from pre-existing ones, is crucial process for cancer growth development. Several studies have elucidated synergistic relationship between angiogenesis inflammation various inflammatory diseases, highlighting correlation vascular...

10.3390/molecules29133103 article EN cc-by Molecules 2024-06-28

õðîíè÷åñêîå îòðàâëåíèå, êîøêè, ãàìàâèò, ôîñïðåíèë, ôîðìóëà êðîâè

10.30917/att-vk-1814-9588-2018-1-10 article EN Veterinaria i kormlenie 2018-01-01

Starting from the second week after birth, majority of piglets suffer iron-deficiency anemia, which leads to a decrease in innate immunity, slowing growth and increasing mortality. As consequence, many die at age 7‒10 days. Preliminary injections gamavit for on 3rd 8th day life doses 2 ml 3 per head, respectively, prevents development iron deficiency stimulates their development, increases survival 25th by 10.5%.

10.37925/0039-713x-2021-1-47-49 article EN PIG-BREEDING 2021-01-01
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