Zobrazeno 1 - 10 of 30 pro vyhledávání: '"Bernt T. Walther"'
1
Lectocyte secrete novel leukolectins in ovo for first-line innate immunity defence
Autor: Mirushe H. Miftari, Bernt T. Walther
Atlantic salmon hatching fluid (HF) contains numerous polypeptides. A component unidentified by proteomics, was cloned from tryptic peptides and characterized as lectin-like (LL-) proteins in the tectonin-family. Purified salmon LL-proteins elicited
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::853f8428668d44a9ac087bd7c0be8c2a
https://doi.org/10.1101/2022.07.29.502062
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3
Choriolytic and non-choriolytic proteases during hatching of Atlantic Salmon embryos
Autor: Mirushe H. Miftari, Jan-Inge Bjune, Chun J. Rong, Frank Nilsen, Bernt T. Walther
Publikováno v: Comparative biochemistry and physiology. Part B, Biochemistrymolecular biology. 262
Fish embryonic hatching glands (HGs) secrete choriolysin-zymogens, which when activated degrade the chorion, allowing larval exit. Thus, hatching encompasses two dissimilar choriolysin-processes: pre-choriolysis including activated choriolysins acces
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7d0283f34e21bf5eaf0b1c622f12767
https://pubmed.ncbi.nlm.nih.gov/35772642
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4
Effects of xenoestrogen treatment on zona radiata protein and vitellogenin expression in Atlantic salmon (Salmo salar)
Autor: Augustine Arukwe, Trine Celius, Anders Goksøyr, Bernt T. Walther
Publikováno v: Aquatic Toxicology. 49:159-170
Zonagenesis (zona radiata protein synthesis) and vitellogenesis (yolk protein synthesis) are two reproductive responses that are integral aspects of fish oogenesis. This study examines the responses of eggshell zona radiata proteins (Zrp) and vitello
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b077ed0873d54ba92809a24ac873513
https://doi.org/10.1016/s0166-445x(99)00083-1
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5
Hatching in zebrafish (Danio rerio) embryos exposed to a 50 Hz magnetic field
Autor: Jon B. Reitan, Kirsten S. Skauli, Bernt T. Walther
Publikováno v: Bioelectromagnetics. 21:407-410
Zebrafish embryos were exposed intra ovo to a 50 Hz AC magnetic field of 1000 microT rms, and the progress of asynchronous hatching was monitored. A statistically significant delay was observed when field exposure started 48 h after fertilization. In
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8b0e75226c112bc78108e89d0c6ddc6
https://doi.org/10.1002/1521-186x(200007)21:5<407::aid-bem10>3.0.co
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6
A sensitive zonagenetic assay for rapid in vitro assessment of estrogenic potency of xenobiotics and mycotoxins
Autor: Bernt T. Walther, Trine Celius, Tom Grotmol, Trine B. Haugen
Publikováno v: Environmental Health Perspectives
Mounting evidence confirms that hepatic biosynthetic processes are essential for female sexual maturation in fish, which is directly controlled by estrogens. These oogenetic events (zonagenesis and vitellogenesis) are induced in both sexes by estroge
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e7c46de311b4a5b452d2b7e650bc922
https://doi.org/10.1289/ehp.9910763
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7
Plasma levels of vitellogenin and eggshell zona radiata proteins in 4-nonylphenol and o,p′-DDT treated juvenile Atlantic salmon (Salmo salar)
Autor: Augustine Arukwe, T. Celius, Bernt T. Walther, Anders Goksøyr
Publikováno v: Marine Environmental Research. 46:133-136
Induction of vitellogenin (Vtg) in males and juveniles of oviparous vertebrates has been used as a biomarker for xenoestrogens. Recently, we have demonstrated that synthesis of eggshell zona radiata proteins (Zrp) or zonagenesis is an integral aspect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f633b2998bea792bff319cacef6c27e
https://doi.org/10.1016/s0141-1136(98)00002-6
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8
Differential sensitivity of zonagenesis and vitellogenesis in Atlantic salmon (Salmo salar L) to DDT pesticides
Autor: Trine Celius, Bernt T. Walther
Publikováno v: The Journal of Experimental Zoology. 281:346-353
In Atlantic salmon (Salmo salar L) female sexual maturation entails both zonagenesis and vitellogenesis, both of which are controlled by increasing levels of estradiol-17 beta (E2). Antibodies against salmon zona radiata proteins (eggshell zr-protein
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7481c0f3bcaff254bdfc8488ea0b04fa
https://doi.org/10.1002/(sici)1097-010x(19980701)281:4<346::aid-jez9>3.0.co
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9
Photo-regulation of the hatching process of halibut (Hippoglossus hippoglossus) eggs
Autor: Jon Vidar Helvik, Bernt T. Walther
Publikováno v: Journal of Experimental Zoology. 263:204-209
Hatching occurs in all vertebrates, yet knowledge about the control of this developmental transition is incomplete. Incubation of halibut Hippoglossus hippoglossus eggs in light results in sustained inhibition of hatching. The inhibitory efficacy of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd7fc8b864ec8beb15f3a138bfd742ae
https://doi.org/10.1002/jez.1402630210
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10
Characterization of a pancreatic DNase from pyloric caeca of atlantic cod (Gadus morhua L.)
Autor: Knut O. Strætkvern, Bernt T. Walther, Arnt J. Raae
Publikováno v: Fish Physiology and Biochemistry. 9:439-452
An alkaline deoxyribonuclease (DNase) from cod pancreatic tissue has been characterized. The enzyme is a DNase I type endonuclease and hydrolyzes effectively both native and denatured DNA. Monomeric actin inhibits the enzyme reaction. The enzyme obey
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a89b3b56d65e11b369bbdcfa6c2f05db
https://doi.org/10.1007/bf02274225
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