Browsing Brage IMR by Author "Bogerd, Jan"
Now showing items 1-10 of 10
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Entry into puberty is reflected in changes in hormone production but not in testicular receptor expression in Atlantic salmon (Salmo salar)
Schulz, Rüdiger W.; Taranger, Geir Lasse; Bogerd, Jan; Nijenhuis, Wouter; Norberg, Birgitta; Male, Rune; Andersson, Eva (Journal article; Peer reviewed, 2019)Background Puberty in male Atlantic salmon in aquaculture can start as early as after the first winter in seawater, stunts growth and entails welfare problems due to the maturation-associated loss of osmoregulation capacity ... -
Follicle-Stimulating Hormone Regulates igfbp Gene Expression Directly or via Downstream Effectors to Modulate Igf3 Effects on Zebrafish Spermatogenesis
Safian, Diego; Kant, Henk J. G. van der; Crespo, Diego; Bogerd, Jan; Schulz, Rüdiger W. (Peer reviewed; Journal article, 2017) -
Gnrh receptor gnrhr2bbα is expressed exclusively in lhb-expressing cells in Atlantic salmon male parr
Ciani, Elia; Fontaine, Romain; Maugars, Gersende Marie Aimee; Rasoul, Nourizadeh-Lillabadi; Andersson, Eva; Bogerd, Jan; von Krogh, Kristine; Weltzien, Finn-Arne (Peer reviewed; Journal article, 2020)Gonadotropin-releasing hormone (Gnrh) plays a major role in the regulation of physiological and behavioural processes related to reproduction. In the pituitary, it stimulates gonadotropin synthesis and release via activation ... -
Insulin-like 3 affects zebrafish spermatogenic cells directly and via Sertoli cells
Crespo, Diego; Assis, Luiz H. C.; Zhang, Yu Ting; Safian, Diego; Furmanek, Tomasz; Skaftnesmo, Kai Ove; Norberg, Birgitta; Ge, Wei; Choi, Yung-Ching; den Broeder, Marjo J.; Legler, Juliette; Bogerd, Jan; Schulz, Rüdiger W (Peer reviewed; Journal article, 2021)Pituitary hormones can use local signaling molecules to regulate target tissue functions. In adult zebrafish testes, follicle-stimulating hormone (Fsh) strongly increases the production of insulin-like 3 (Insl3), a Leydig ... -
Integrative testis transcriptome analysis reveals differentially expressed miRNAs and their mRNA targets during early puberty in Atlantic salmon
Skaftnesmo, Kai Ove; Edvardsen, Rolf; Furmanek, Tomasz; Crespo, D.; Andersson, Eva; Kleppe, Lene; Taranger, Geir Lasse; Bogerd, Jan; Schulz, Rüdiger W.; Wargelius, Anna (Peer reviewed; Journal article, 2017) -
Pituitary Gonadotropin Gene Expression During Induced Onset of Postsmolt Maturation in Male Atlantic Salmon: In Vivo and Tissue Culture Studies
Crespo, Diego; Skaftnesmo, Kai Ove; Kjærner-Semb, Erik Nordtorp; Yilmaz, Ozlem; Norberg, Birgitta; Olausson, Sara; Vogelsang, Petra; Bogerd, Jan; Kleppe, Lene; Edvardsen, Rolf Brudvik; Andersson, Eva; Wargelius, Anna; Hansen, Tom Johnny; Fjelldal, Per Gunnar; Schulz, Rüdiger W. (Peer reviewed; Journal article, 2022)Precocious male maturation causes reduced welfare and increased production costs in Atlantic salmon (Salmo salar) aquaculture. The pituitary produces and releases follicle-stimulating hormone (Fsh), the gonadotropin ... -
Sex differentiation in Atlantic cod (Gadus morhua L.): morphological and gene expression studies
Haugen, Trine; Almeida, Fernanda F. L.; Andersson, Eva; Bogerd, Jan; Male, Rune; Skaar, Katrine S.; Schulz, Rüdiger W.; Sørhus, Elin; Wijgerde, Tim; Taranger, Geir Lasse (Journal article; Peer reviewed, 2012-06-18)Background In differentiated gonochoristic species, a bipotential gonad develops into an ovary or testis during sex differentiation. Knowledge about this process is necessary to improve methods for masculinizing genetically ... -
Sex steroid production associated with puberty is absent in germ cellfree salmon
Kleppe, Lene; Andersson, Eva; Skaftnesmo, Kai Ove; Edvardsen, Rolf; Fjelldal, Per Gunnar; Norberg, Birgitta; Bogerd, Jan; Schulz, Rüdiger W.; Wargelius, Anna (Peer reviewed; Journal article, 2017) -
Spermatogonial Stem Cell Niche and Spermatogonial Stem Cell Transplantation in Zebrafish
Nóbrega, Rafael Henrique; Greebe, Caaj Douwe; van de Kant, Henk; Bogerd, Jan; de França, Luiz Renato; Schulz, Rüdiger W. (Journal article; Peer reviewed, 2010-09-20)Background Spermatogonial stem cells (SSCs) are the foundation of spermatogenesis, and reside within a specific microenvironment in the testes called “niche” which regulates stem cell properties, such as, self-renewal, ... -
The initiation of puberty in Atlantic salmon brings about large changes in testicular gene expression that are modulated by the energy status
Crespo, Diego; Bogerd, Jan; Sambroni, Elisabeth; LeGac, Florence; Andersson, Eva; Edvardsen, Rolf; Bergman, Elisabeth Jonsson; Björnsson, Björn Thrandur; Taranger, Geir Lasse; Schulz, Rüdiger W. (Journal article; Peer reviewed, 2019)Background When puberty starts before males reach harvest size, animal welfare and sustainability issues occur in Atlantic salmon (Salmo salar) aquaculture. Hallmarks of male puberty are an increased proliferation activity ...