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Effect of sex hormones on copper, zinc, iron nutritional status and hepatic lipid peroxidation in rats

✍ Scribed by Wachnik, Anna ;Biró, G. ;Biró, L. ;Korom, M. ;Gergely, Anna ;Antal, Magdolna


Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
423 KB
Volume
37
Category
Article
ISSN
0027-769X

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✦ Synopsis


Sex dependence of copper. zinc. iron 11 utritional status and hepatic lipid peroxidation was studied in gonadectomized, hormone suhstituted and sham-operated male and female rats. The experiment was performed on 11-Wistar rats (I06 10 g) fed conventional laboratory food a d libitum for I 2 weeks. I h c estrogen dependence of copper status is fully contirmcd by the results of this study. I n horinonally active females the mnlondialdehyde production was depressed which is supposed to be connected with high copper and low triglyceride levels in the liver. T h e anaemia observed i n estrogen substituted rats may be a result of lower lipid peroxidation rate. ' [ h e levels of retinol and alkaline phosphatase activity in sera are probably influenced by estrogen action. I t is suggested that testosterone leads to acceleration of lipid peroxidation.

Zusarnmenfmang

Wirkung dcr C;esclilcclitshormc,nc aul' den tiriiahruneszustand von Kupfer. %ink und Eisen und auf die Lipidperoxidation dcr. Lcber hci k i t t e n Es wurdc die (jeschlcchtsabhingigkeit des Erniilirungs/ustandes v o n Kupfer. Zink und Eiscn und der hepatischen Lipidperoxidation bei gonadektomisicrten. hormonal suhstituiertcn und pscudoopcrierten niitnnlichcn und weihlichen Ratten studicrt. Das lixpcriment wurde :in H-Wistar Kattcn (IOO.,? 10 g). gel'iittert ad libitum mit traditionellen Labor-Futtcrmitteln fur I2 Wochcn. durchgcfiilirt. Die Ostrogcnabhanpigkeit c o m Kupferstatus wurde durch die Ergebnisse dieser Studic bcstiitigt. Uei hoi-monal aktivcn Wcihchen wurde die Produktion von Malondialdehytl unterdruckt. was wahrscheinlich niit dein hohcn Kuplkr-ung, nicdrigen Triglyccridnivcau in dcr Leher in Zusammcnhang stcht. Die Ursache dcr Aiiiimie hei niit Ostrogen substituiertcn Ratten kann das Ergehnis der nicdrigcn Lipidperoxidation sein. Das Retinolniveau im Serum und die Aktic.itiit von alkalischcr Phosphatasc stehen wahrschcinlich unter einer iistrogcnen Wirkung. I<s scheint so. daD Teslosteron zur Erliiihung der Lipidkori~cntratiori llihrt. I VCH Verlagsgesellschdft mhH. I M Y 4 0 Weiiihcim. 1993 0027-7hYX Y3 0101 002853 50 1 2s 0 W A C H N I K / B I R ~ et al.: Erect of sex hormoncs on nutritional stat us 29

* Differences between OR and ORT l., OV and OVE l'., OR and CM 2., OV and CF 2'., ORT and CM 3., OVE and C F 3'., respective results. NSnot significant.


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