2012
Oxidative stress and detoxification biomarker responses in aquatic freshwatervertebrates exposed to microcystins and cyanobacterial biomass.
PASKEROVÁ, Hana, Klára HILSCHEROVÁ a Luděk BLÁHAZákladní údaje
Originální název
Oxidative stress and detoxification biomarker responses in aquatic freshwatervertebrates exposed to microcystins and cyanobacterial biomass.
Autoři
PASKEROVÁ, Hana (203 Česká republika, domácí), Klára HILSCHEROVÁ (203 Česká republika, domácí) a Luděk BLÁHA (203 Česká republika, garant, domácí)
Vydání
Environmental Science and Pollution Research, HEIDELBERG, GERMANY, SPRINGER HEIDELBERG, 2012, 0944-1344
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.618
Kód RIV
RIV/00216224:14310/12:00057616
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000306123000016
Klíčová slova anglicky
Biomarkers; Cyanobacteria; Detoxification; Fish; Oxidative stress; Microcystin
Změněno: 11. 4. 2013 13:02, Ing. Andrea Mikešková
Anotace
V originále
Cyanobacterial blooms represent a serious threat to the aquatic environment. Among other effects, biochemical markers have been studied in aquatic vertebrates after exposures to toxic cyanobacteria. Some parameters such as protein phosphatases may serve as selective markers of exposure to microcystins, but under natural conditions, fish are exposed to complex mixtures, which affect the overall biomarker response. This review aims to provide a critical summary of biomarker responses in aquatic vertebrates (mostly fish) to toxic cyanobacteria with a special focus on detoxification and oxidative stress. Detoxification biomarkers such as glutathione (GSH) and glutathione-S-transferase (GST) showed very high variability with poor general trends. Often, stimulations and/or inhibitions and/or no effects at GSH or GST have been reported, even within a single study, depending on many variables, including time, dose, tissue, species, etc. Most of the oxidative stress biomarkers (e.g., superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase) provided more consistent responses, but only lipid peroxidation (LPO) seemed to fulfill the criteria needed for biomarkers, i.e., a sufficiently long half-life and systematic response. Indeed, reviewed papers demonstrated that toxic cyanobacteria systematically elevate levels of LPO, which indicates the important role of oxidative damage in cyanobacterial toxicity. In summary, the measurement of biochemical changes under laboratory conditions may provide information on the mode of toxic action. However, comparison of different studies is very difficult, and the practical use of detoxification or oxidative stress biomarkers as diagnostic tools or early warnings of cyanobacterial toxicity is questionable.
Návaznosti
ED0001/01/01, projekt VaV |
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GAP503/12/0553, projekt VaV |
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MSM0021622412, záměr |
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