2018
Impact of acute and subchronic inhalation exposure to PbO nanoparticles on mice
LEBEDOVÁ, Jana, Zuzana NOVÁKOVÁ, Z. VECERA, marcela BUCHTOVÁ, Jana DUMKOVÁ et. al.Základní údaje
Originální název
Impact of acute and subchronic inhalation exposure to PbO nanoparticles on mice
Autoři
LEBEDOVÁ, Jana (203 Česká republika, domácí), Zuzana NOVÁKOVÁ (203 Česká republika, domácí), Z. VECERA (203 Česká republika), marcela BUCHTOVÁ (203 Česká republika, domácí), Jana DUMKOVÁ (203 Česká republika, domácí), B. DOCEKAL (203 Česká republika), Lucie BLÁHOVÁ (203 Česká republika, domácí), P. MIKUSKA (203 Česká republika), I. MISEK (203 Česká republika), Aleš HAMPL (203 Česká republika, domácí) a Klára HILSCHEROVÁ (203 Česká republika, garant, domácí)
Vydání
NANOTOXICOLOGY, ABINGDON, TAYLOR & FRANCIS LTD, 2018, 1743-5390
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30108 Toxicology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.955
Kód RIV
RIV/00216224:14310/18:00102887
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000430425800002
Klíčová slova anglicky
Nanoparticles; subchronic; lead; oxidative stress; accumulation; tissue damage
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 3. 2019 10:54, Mgr. Radek Ševčík, Ph.D.
Anotace
V originále
Lead nanoparticles (NPs) are released into air from metal processing, road transport or combustion processes. Inhalation exposure is therefore very likely to occur. However, even though the effects of bulk lead are well known, there is limited knowledge regarding impact of Pb NPs inhalation. This study focused on acute and subchronic exposures to lead oxide nanoparticles (PbO NPs). Mice were exposed to PbO NPs in whole body inhalation chambers for 4-72h in acute experiment (4.05x10(6) PbO NPs/cm(3)), and for 1-11 weeks in subchronic experiment (3.83x10(5) particles/cm(3) in lower and 1.93x10(6) particles/cm(3) in higher exposure group). Presence of NPs was confirmed in all studied organs, including brain, which is very important considering lead neurotoxicity. Lead concentration gradually increased in all tissues depending on the exposure concentration and duration. The most burdened organs were lung and kidney, however liver and brain also showed significant increase of lead concentration during exposure. Histological analysis documented numerous morphological alterations and tissue damage, mainly in lung, but also in liver. Mild pathological changes were observed also in kidney and brain. Levels of glutathione (reduced and oxidized) were modulated mainly in lung in both, acute and subchronic exposures. Increase of lipid peroxidation was observed in kidney after acute exposure. This study characterized impacts of short to longer-term inhalation exposure, proved transport of PbO NPs to secondary organs, documented time and concentration dependent gradual increase of Pb concentration and histopathological damage in tissues.
Návaznosti
CZ.02.1.01/0.0/0.0/16_013/0001761, interní kód MU |
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LM2015051, projekt VaV |
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