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Morphological and histological changes in the male gonad of the american crayfish Oronectes limosus ( Rafinesque) in the annual cycle

100%

Wielgus-Serafinska E.

tom 19

nr 1-2

Effect of long-term diet enrichment with selenium, vitamin E and vitamin B15 on the degree of fatty infiltration of the liver

51%

Ziemlanski S. , Wielgus-Serafinska E. , Panczenko-Kresowska B. , Zelakiewicz K.

nr 4

Changes of enzyme activity in the rat liver at different age in circadian cycle

51%

Wielgus-Serafinska E. , Nowaczyk-Dura G. , Kaminski M.

nr 1

Effect of cadmium upon the activity of some selected marker enzymes in rat liver

51%

Wielgus-Serafinska E. , Nowaczyk-Dura G. , Kaminski M.

tom 39

nr 1

Localization and accumulation of zinc and lead in some invertebrate tissue from the steel plant "Katowice" area

45%

Tara B. , Wielgus-Serafinska E. , Kawka E. , Dec R. , Mielzynska I.

tom 30

nr 1

Circadian changes in ATP-ase Mg activity and in Mg and Ca content of rat liver in relation to age and season

38%

Wielgus-Serafinska E. , Pawlicki K. , Kaminski M. , Nowaczyk-Dura G. , Plewka A. , Czekaj P.

nr 4

This experiment was carried out on male Wistar rats aged 6, 12, and 24 months in two seasons, autumn and winter. In all age groups, the activity of Mg-dependent ATP-ase (Mg2+ -ATPase) showed rhythmic oscillations with a 12-hour period. A similar time course was observed for 12-hour variations in Mg and Ca concentrations. In both seasons the maxima of ATP-ase Mg activity paralleled the maxima of Mg and Ca concentrations. When two maxima were observed, one of them always occurred in the light phase and the other in the dark phase of the 24-hour LDcycle.