Beata Szynaka

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BACKGROUND/AIMS The pathogenesis of pancreatic fibrosis is unknown. Pathogenic analyses take into account the effect of oxidant stress and the increase in free radicals leading to degranulation of mast cells, which may cause inflammation and activate fibrosis. Activated pancreatic stellate cells produce abnormal components of intercellular substance and are(More)
The anthracyclines are among the most active and useful anticancer agents, but they are also the most common chemotherapeutics associated with the development of congestive heart failure. Twenty seven to sixty percent of patients with anthracycline-induced cardiomyopathy die of congestive cardiac failure. The paper presents the pathomechanisms of(More)
BACKGROUND Aging is related to declined cardiac hemodynamic function. As pumping performance may be significantly related to slowed ventricular depolarization and non-synchronous contraction, we hypothesized that aging may cause dysfunction of intercalated disc (ID), which is the structure responsible for intercellular electrical communication between(More)
Our previous study has shown the alteration of C cells activity in rats with experimental model of hyperthyroidism. The aim of the present study was the evaluation of parafollicular cells activity in rats with hypothyroidism evoked by propylthiouracil (PTU) given in drinking water over 21 days. Histological, ultrastructural and immunocytochemical studies(More)
The aim of the paper is to make an ultrastructural analysis of the nuclei of the pancreatic acinar cells in the rat in the course of lead acetate intoxication. The experiment used 84 Wistar rats, divided into 3 experimental groups, and a control group. The experimental rats were given aqueous solution of lead acetate in a dose of 50 mg/dm3 in group I, 500(More)
Not only bile but also chronic cholecystitis may play a role in gallbladder carcinogenesis. Numerous studies have revealed a close correlation between chronic inflammation and neoplasia. The experiments were conducted on paraffin sections, obtained from 377 surgically resected gallbladders with chronic cholecystitis. Immunohistochemical reaction was(More)
The aim of the study was to evaluate alterations in exocrine cell mitochondria of the rat pancreas after lead acetate intoxication. The experiment used 45 rats divided into 2 experimental groups receiving lead acetate to drink, of lead concentration 50 and 500 mg/dm3 (ppm), and a control group given tap water. The animals from the experimental group were(More)
The aim of the experiment was to determine the effect of fluoride on ultrastructural changes in the submandibular gland, the pancreas and the liver. The experimental rats received fluoride in aqueous solutions of sodium fluoride at concentrations of 10.6 NaF/dm3 and 32.0 NaF/dm3. In the ultrastructural examination, mitochondria were most damaged.
PURPOSE Cryoglobulinemic glomerulonephritis (CGGN) is a type of membranoproliferative glomerulonephritis (MPGN) that develops in patients with systemic cryoglobulinemia. To date the exact pathogenesis of CGGN remains unclear. It has been suggested that macrophages may be significant contributors to the glomerular injury in this disease. In our study we(More)
Thorough understanding of magnetic nanoparticle (MNP) properties is essential for developing new theranostics. In this study, we provide evidence that non-modified magnetic iron oxide nanoparticles and their functionalized derivatives may be used to restrict growth and capture different pathogens. Coprecipitation of Fe(2+) and Fe(3+) ions in an alkaline(More)