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Wyświetlanie 1-2 z 2
Tytuł:
The influence of poisoning with patulin on activity of acid phosphatase, cathepsin B and D in mice kidneys and livers
Autorzy:
Borzecki, A.
Nieradko-Iwanicka, B.
Mikocka, J.
Powiązania:
https://bibliotekanauki.pl/articles/2097785.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
hepatotoxicity
nephrotoxicity
Patulin
Opis:
Introduction. Patulin is a mycotoxin produced by a variety of moulds, for instance, Aspergillus, Penicillium and Byssochlamys, and found most often in rotten apples. Previous studies showed toxic effects of patulin in the gastro-intestinal tract, impairment of kidney function, as well as neurotoxicity. Objective. The aim of the study was to investigate whether intoxication with patulin affects the activity of acid phosphatase, cathepsin B and D in mice kidneys and livers. Materials and method. Experiments were conducted on 36 female mice. Animals were divided into 6 groups of 6: 1 – control, 2 – received 0.1 LD50 patulin i.p. 28 days, 3 – saline i.p. once, 4 – patulin i.p. 0.1 LD50 once, 5 patulin i.p. 0.2 LD50 once, 6 – patulin i.p. 0.5 LD50 once. 6 hours after patulin or saline administration, animals from groups 3, 4, 5, 6 were sacrificed. Kidneys and livers were obtained. Animals from groups 1 and 2 were sacrificed on day 29. Acid phosphatase activity was measured in the tissue supernatants with colorimetric method. Cathepsin B and D activities were determined with an ELISA-kit. Results. The activities of acid phosphatase, cathepsin B and D in the kidneys and livers of mice exposed to patulin for 28 days was higher than in controls. A proportionate increase in acid phosphatase and cathepsin B activity in the kidneys and livers was observed for a single dose of the xenobiotic. Conclusions. Acute and subacute poisoning with patulin negatively affects the functioning of lysosomes and induces an increase in the activity of lysosomal enzymes in mice livers and kidneys. Activities of acid phosphatase and selected cathepsins in the livers and kidneys are markers of cell damage due to patulin’s toxicity.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2020, 14, 3; 94-97
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prolonged exposure to transdermal nicotine improves memory in male mice, but impairs biochemical parameters in male and female mice
Autorzy:
Nieradko-Iwanicka, B.
Pietraszek, D.
Pośnik, K.
Borzecki, A.
Powiązania:
https://bibliotekanauki.pl/articles/2082061.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
memory
biochemical parameters
nicotine
Opis:
Introduction. Nicotine is an alkaloid that affects the functioning of the central nervous system and produces dependence. In low doses, it acts as a stimulant and relaxant. Nicotine was reported to have pro-cognitive effects in humans and animals. However, high doses of nicotine are harmful for many organs.The aim of the study was to check whether a 30-day exposure to transdermal nicotine affects memory and biochemical parameters in mice. Materials and method. A total of 32 mice (16 males and 16 females) were used in the experiment. Mice were divided into 4 groups of 8 animals each: I control-females receiving placebo patches for 30 days, II females receiving nicotine patches for 30 days, III control-males receiving placebo patches, IV males receiving nicotine patches. Spontaneous alternation and locomotor activity were examined weekly in a Y-maze. Body mass was recorded daily. On day 30, venous blood samples were obtained and the animals were anaesthetized with CO2. Their blood was used to measure alanine transaminase (ALT), asparagine transaminase (AST), cholesterol, creatinine and glycosylated haemoglobin (HbA1C). Results. Nicotine significantly improved memory in male mice on day 8. It increased ALT and AST activities in males and females, as well as the concentration of cholesterol in their blood sera. Conclusions. In conclusion, transdermal nicotine may produce transient improvement in fresh spatial memory in male mice, but it is not a long-term effect and therefore nicotine does not seem to be appropriate for use in the treatment of neurodegenerative disorders. It elevates blood cholesterol level and thus may increase the risk of atherosclerosis and cardiovascular events; moreover, it negatively affects liver enzymes. Nicotine use is therefore not recommended.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 1; 62-66
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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