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Wyświetlanie 1-5 z 5
Tytuł:
Homeostasis of chosen microelements in liver of rats receiving lithium and/or selenium orally
Autorzy:
Kiełczykowska, Małgorzata
Kopciał, Ewelina
Marzec, Zbigniew
Musik, Irena
Powiązania:
https://bibliotekanauki.pl/articles/972530.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
lithium
selenium
iron
manganese
copper
zinc
male rats
liver
Opis:
Introduction and objective. Lithium and selenium have been the subjects of extensive research for many years. Concern about the physiological action of these elements results from the application of lithium in medicine, as well as the beneficial influence of selenium supplementation in different pathological states. However, little data are available concerning their effect on the homeostasis of essential microelements in organs. Therefore, the aim of the current study was to evaluate the influence of lithium and/or selenium administration on homeostasis of iron, zinc, copper and manganese in the liver of rats. Materials and method. The experiment was carried on 24 male Wistar rats (4 groups of 6 animals) subjected to the treatment with: group I (control) – saline; group II – lithium carbonate at a dose of 2.7 mg Li/kg b.w.; group III – sodium selenite at a dose of 0.5 mg Se/kg b.w.; group IV – both lithium carbonate and sodium selenite at the doses mentioned above. Administration was performed for 6 weeks, once a day by stomach tube, in the form of water solutions. Results. The tissue content of zinc, iron and manganese showed no statistical differences among the studied groups. Zn was slightly decreased in group III vs. control and group II. Fe was insignificantly enhanced in groups II and IV vs. control. Mn in group IV was slightly increased vs. groups II and III. Cu in group III was significantly decreased vs. group IV and slightly depleted vs. groups I and II. Conclusion. With the exception of Cu in the Se-treated group, lithium and/or selenium did not affect the studied microelements’ liver homeostasis in a significant way. These results may contribute to the knowledge of essential microelements homeostasis in human organisms undergoing lithium therapy, and/or selenium supplementation.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2017, 11, 2; 132-135
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selenium prevents lithium accumulation and does not disturb basic microelement homeostasis in liver and kidney of rats exposed to lithium
Autorzy:
Kiełczykowska, M.
Polz-Dacewicz, M.
Kopciał, E.
Mitrus, O.
Kurzepa, J.
Marzec, Z.
Musik, I.
Powiązania:
https://bibliotekanauki.pl/articles/2085454.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
lithium
selenium
iron
zinc
copper
manganese
male rats
liver
kidney
Opis:
Introduction. Lithium has been used in medicine for almost seventy years. Besides beneficial effects, its therapy may cause serious side-effects, with kidney and liver being the organs most vulnerable to its harmful influence. Therefore, research on protective agents against lithium toxicity has been continuing for some time. Objective. The aim of the present study is to evaluate the influence of additional selenium supplementation on lithium content, as well as homeostasis of the essential microelements iron, zinc, copper and manganese in kidney and liver of rats undergoing lithium exposure. Materials and method. The study was performed on 4 groups of male Wistar rats (6 animals each) treated with: control – saline; Li-group – Li2CO3 at a dose of 2.7 mg Li/kg b.w.; Se-group – Na2SeO3 at a dose of 0.5 mg Se/kg b.w.; Li+Se-group – both Li2CO3 and Na2SeO3 at doses of 2.7 mg Li/kg b.w. and of 0.5 mg Se/kg b.w., respectively, in the form of water solutions by stomach tube, once a day for 3 weeks. The content of the studied elements in the organ samples was determined using flame atomic absorption spectroscopy (FAAS). Results. Lithium administered alone caused a significant increase in its content in liver and kidney. Additional supplementation with selenium reversed these effects, and did not markedly affect other studied microelements compared to control. Conclusions. The obtained results suggest that selenium could be regarded as an adjuvant into lithium therapy. However, considering the limitations of the present study (the short duration, using only one dose and form of selenium) the continuation of the research seems to be necessary to clarify the influence of selenium supplementation on basic microelements and lithium accumulation in organs during lithium exposure.
Źródło:
Annals of Agricultural and Environmental Medicine; 2020, 27, 1; 129-133
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fertility and developmental toxicity studies of diethylene glycol monobutyl ether (DGBE) in rats
Autorzy:
Sitarek, Krystyna
Gromadzińska, Jolanta
Lutz, Piotr
Stetkiewicz, Jan
Świercz, Radosław
Wąsowicz, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/2180019.pdf
Data publikacji:
2012-09-01
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
dimethylene glycol monobutyl ether (DGBE)
CAS No. 112-34-5
female and male rats
fertility
Opis:
Objectives The solvent, dimethylene glycol monobutyl ether (DGBE), is a component of latex paints, inks; it is used as a degreasing agent, industrial detergent. The aim of the study was evaluating the effects of DGBE administered by gavage on the estrous cycle and given with drinking water on fertility in rats and early development of their progeny. Materials and Methods Female rats were exposed to DGBE by gavage during 8 weeks at 250, 500 or 1000 mg/kg/day. Vaginal smears were collected during the exposure and 4 weeks after its cessation. Fertility studies were performed in male and female animals exposed to in drinking water. Males were exposed for 10 weeks and then mated with females exposed before mating, during pregnancy and lactation. Young animals were observed during 3 weeks after birth. Results DGBE does not cause disturbances of the menstrual cycle in females. Parameters used to assess the general toxicity indicate that males receiving DGBE in drinking water are more sensitive to this compound than females: significantly greater, dose-dependent relative spleen weight, significant decrease in hematological parameters from 8% to 15% depending on the dose, were observed. Clinical chemistry parameters (HDL-cholesterol, BUN) and some markers of oxidative stress differ between the exposed groups and the control one, but without adverse health effect. The microscopic examination of internal organs did not reveal morphological changes in male and female rats. Conclusion The results of our study on the impact of exposure to DGBE on fertility in rats indicate that the substance administered for 9–10 weeks to females and males at a limit dose of 1000 mg/kg did not impair fertility or viability of their offspring during the first three weeks of life.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2012, 25, 4; 404-417
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ pól elektromagnetycznych o częstotliwości sieciowej i radiowej na strukturę jądra szczura
Impact of electromagnetic fields with industrial and radio frequency on structure of rat testis
Autorzy:
Sieroń, K.
Kawczyk-Krupka, A.
Cieślar, G.
Sieroń, A.
Wojnicz, R.
Cholewka, A.
Stanek, A.
Powiązania:
https://bibliotekanauki.pl/articles/261347.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Wydział Podstawowych Problemów Techniki. Katedra Inżynierii Biomedycznej
Tematy:
pole elektromagnetyczne
częstotliwość sieciowa
częstotliwość radiowa
system telefonii komórkowej
linia przesyłowa wysokiego napięcia prądu zmiennego
jądro
samce szczurów
electromagnetic fields
industrial frequency
radio frequency
mobile telephony system
high voltage alternating current transmission line
testis
male rats
Opis:
W pracy poddano ocenie na zwierzęcym modelu eksperymentalnym wpływ długotrwałej ekspozycji na oddziaływanie pola elektromagnetycznego o częstotliwości sieciowej, generowanego przez linie przesyłowe prądu zmiennego wysokiego napięcia oraz pola elektromagnetycznego o częstotliwości radiowej, emitowanego przez systemy telefonii komórkowej, a także łącznego ich oddziaływania na strukturę histologiczną jąder dojrzałych samców szczurów, ocenianą w mikroskopie świetlnym. Grupę kontrolną stanowiły zwierzęta poddane ekspozycji pozorowanej. Po 28-dniowej ekspozycji żadna z badanych form pola elektromagnetycznego nie spowodowała zmian struktury histologicznej jąder, widocznej w mikroskopie świetlnym.
The impact of long-term exposure to the electromagnetic field of industrial frequency generated by high-voltage alternating-current transmission lines and radio-frequency electromagnetic field emitted by mobile telephony system, as well as simultaneous action of both forms of electromagnetic fields on histological structure of adult male rats testes, was studied. As a control group sham-exposed animals were examined. It was stated by means of light microscopic examination that 28-day exposure of animals to examined electromagnetic fields did not cause any changes of histological structure of testes.
Źródło:
Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna; 2016, 22, 3; 105-112
1234-5563
Pojawia się w:
Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Protective role of silibinin over nickel sulfate-induced reproductive toxicity in male rats
Autorzy:
Temamogullari, F.
Atessahin, A.
Cebi Sen, C.
Yumusak, N.
Dogru, M.S.
Powiązania:
https://bibliotekanauki.pl/articles/2087235.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nickel
silibinin
male
rats
reproductive toxicity
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 1; 29-34
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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