Abstract:
:In this study, carp Cyprinus carpio were injected with various steroid compounds, including synthetic and natural progestogens and the glucocorticoid cortisol, to investigate effects on leucocytes isolated from their kidneys. Injection of cortisol led to an increased spleeno-somatic index (I(S)) on day 21 post-injection (pi) and immunosuppressive effects measured as decreased nitric oxide (NO) production and increased arginase activity in isolated leucocytes on days 14 and 21 pi, respectively. Moreover, reduced NO production was also observed after injection of the synthetic progestogens, levonorgestrel (LEV) and medroxyprogesterone acetate. In addition, LEV influenced arginase activity in head kidney cells on day 14 and day 21 pi. This study is the first demonstration in fishes that the application of these steroid compounds in vivo affects NO production and arginase activity of isolated leucocytes.
journal_name
J Fish Bioljournal_title
Journal of fish biologyauthors
Pietsch C,Neumann N,Preuer T,Kloas Wdoi
10.1111/j.1095-8649.2011.02981.xsubject
Has Abstractpub_date
2011-07-01 00:00:00pages
53-69issue
1eissn
0022-1112issn
1095-8649journal_volume
79pub_type
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