2008
Detoxification and oxidative stress responses along with microcystins accumulation in Japanese quail exposed to cyanobacterial biomass.
PAŠKOVÁ, Veronika, Ondřej ADAMOVSKÝ, Jiří PIKULA, Blanka SKOČOVSKÁ, Hana BAND'OUCHOVÁ et. al.Základní údaje
Originální název
Detoxification and oxidative stress responses along with microcystins accumulation in Japanese quail exposed to cyanobacterial biomass.
Název česky
Detoxifikace, oxidativní stres a akumulace microcystinů v křepeloe japonské exponované sinicovou biomasou.
Autoři
PAŠKOVÁ, Veronika (203 Česká republika), Ondřej ADAMOVSKÝ (203 Česká republika), Jiří PIKULA (203 Česká republika), Blanka SKOČOVSKÁ (203 Česká republika), Hana BAND'OUCHOVÁ (203 Česká republika), Jana HORÁKOVÁ (203 Česká republika), Pavel BABICA (203 Česká republika), Blahoslav MARŠÁLEK (203 Česká republika) a Klára HILSCHEROVÁ (203 Česká republika, garant)
Vydání
Science ot the Total Environment, Amsterdam, Netherlands, Elsevier, 2008, 0048-9697
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.579
Kód RIV
RIV/00216224:14310/08:00035351
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000256979900005
Klíčová slova česky
křepelka; sinice; oxidativní stres; microcystin; detoxifikace
Klíčová slova anglicky
quail; cyanobacteria; oxidative stress; microcystin; detoxification
Štítky
Změněno: 9. 4. 2009 13:21, doc. Mgr. Klára Hilscherová, Ph.D.
V originále
The cyanobacterial exposure has been implicated in mass mortalities of wild birds, but information on the actual effects of cyanobacteria on birds in controlled studies is missing. Effects on detoxification and antioxidant parameters as well as bioaccumulation of microcystins (MCs) were studied in birds after sub-lethal exposure to natural cyanobacterial biomass. Four treatment groups of model species Japanese quail (Coturnix coturnix japonica) were exposed to controlled doses of cyanobacterial bloom during acute (10 days) and subchronic (30 days) experiment. Significant accumulation of MCs was observed in the liver for both test durations and slight accumulation also in themuscles of the highest treatment group from acute test. The greatest accumulationwas observed in the liver of the highest treatment group in the acute test reaching average concentration of 43.7 ngMCs/g freshweight.The parameters of detoxification metabolism and oxidative stress were studied in the liver, heart and brain. The cyanobacterial exposure caused an increase of activity of cytochrome P-450-dependent 7-ethoxyresorufin O-deethylase representing the activation phase of detoxification metabolism. Also the conjugation phase of detoxification, namely the activity of glutathione-S-transferase, was altered. Cyanobacterial exposure alsomodulated oxidative stress responses including the level of glutathione and activities of glutathione-related enzymes and caused increase in lipid peroxidation. The overall pattern of detoxification parameters and oxidative stress responses clearly separated the control and the lowest exposure group from all the higher exposed groups. This is the first controlled study documenting the induction of oxidative stress along with MCs accumulation in birds exposed to natural cyanobacterial biomass. The data also suggest that increased activities of detoxification enzymes could lead to greater biotransformation and elimination of the MCs at the longer exposure time.
Česky
Studie ovlivnění detoxifikace, parametrů oxidativního stresu a akumulace microcystinů v křepelce japonské exponované sinicovou biomasou.