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Nanopathology as a new scientific discipline
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Authors: Jana Dvořáčková 1,2;  Hana Bielniková 2;  Jirka Mačák 1,2
Authors‘ workplace: Lékařská fakulta Ostravská univerzita v Ostravě 1;  Ústav patologie, Fakultní nemocnice v Ostravě 2
Published in: Čes.-slov. Patol., 49, 2013, No. 1, p. 46-50
Category: Trends

Overview

The detection of metal particles in the pathologically altered tissues (eg. in inflammatory lesions or tumors) led to the idea that they might be associated with emergence of some idiopathic diseases. To understand the etiopathogenesis of diseases associated with the presence of nanoparticles in the tissue there is a new area of patology - nanopathology. Numerous studies have shown that nanoparticles can enter the human body through inhalation or ingestion. Through the pulmonary alveoli, skin and intestinal mucosa, the nanoparticles may reach the blood and lymphatic system, which subsequently distributes them to other target organs. Epithelial surfaces of conjunctiva and skin represent another potential way of penetration of nanoparticles into the body. There is a number of studies, which described the adverse effects of ultrafine particles on respiratory and cardiovascular system. Recent studies have also shown that some nanoparticles are able to pass through the pores of the nuclear membrane, where they may pose a risk of damage to cells and genetic information and they are also potentially capable to cross the placental and hematoencephalic barriers. Further, their role in the induction of oxidative stress is significant in relation to the mutagenesis. Scanning electron microscopy with energy disperse spectroscopy (SEM-EDS) represents a suitable tool for identification of metal-based particles in tissues and body fluids. Importance of nanopathogy can be seen in the elucidation of the etiopathogenesis of many diseases, not only of respiratory and cardiovascular systems, but also of many other organ systems.

Keywords:
nanoparticles – nanopathology – diseases of nanoparticles (nanopathologies) – ESEM-EDS


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