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Berta Levavi-Sivan
Researcher at Hebrew University of Jerusalem
Publications - 131
Citations - 5604
Berta Levavi-Sivan is an academic researcher from Hebrew University of Jerusalem. The author has contributed to research in topics: Luteinizing hormone & Gonadotropin. The author has an hindex of 41, co-authored 123 publications receiving 4962 citations. Previous affiliations of Berta Levavi-Sivan include Tel Aviv University & Monash University.
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Journal ArticleDOI
Perspectives on fish gonadotropins and their receptors.
TL;DR: Recombinant fish GtHs were produced for carp, seabream, channel and African catfish, goldfish, eel, tilapia, zebrafish, Manchurian trout and Orange-spotted grouper, where FSHR expression in Leydig cells explains the strong steroidogenic activity of FSH in certain fish species.
Book ChapterDOI
Regulation of fish gonadotropins.
TL;DR: GnRH increases the steady-state levels of GPalpha, LHbeta, and FSHbeta mRNAs, and the effect of these peptides on the expression of the gonadotropin subunit genes is transduced differentially.
Journal ArticleDOI
Molecular identification and functional characterization of the kisspeptin/kisspeptin receptor system in lower vertebrates.
TL;DR: The results indicate that the Kiss1/Kiss1r system may participate in puberty initiation in fish as well, like human KISS1R, which transduces its activity via the PKC pathway, whereas Kiss1rb does so via both PKC and PKA pathways.
Journal ArticleDOI
Pathogenesis of acute viral disease induced in fish by carp interstitial nephritis and gill necrosis virus.
Eli Pikarsky,Ariel Ronen,Julia Abramowitz,Berta Levavi-Sivan,Marina Hutoran,Yechiam Shapira,Michael Steinitz,Ayana Perelberg,Ayana Perelberg,Dov Soffer,Moshe Kotler +10 more
TL;DR: The virus causing the disease from sick fish, propagated it in koi fin cell culture, and shown that virus from a single clone causes lethal disease in carp and koi upon infection are called carp interstitial nephritis and gill necrosis virus.
Journal ArticleDOI
Spawning induction in common carp (Cyprinus carpio) using pituitary extract or GnRH superactive analogue combined with metoclopramide: analysis of hormone profile, progress of oocyte maturation and dependence on temperature
TL;DR: Data compiled from several spawning experiments showed that the interval between hormone administration and initial egg release (latency) was negatively correlated with water temperature over the range of 20-26°C and in each treatment it was nonetheless constant between 22.5 ’ C and 25 ” C.