PCB153 (2,2′,4,4′,5,5′-hexachlorobiphenyl) differentially affects the VEGF/VEGFR system depending on photoperiod in the ovine choroid plexus

Autor: Janina Skipor, Vincent Robert, J. Mlynarczuk, Laurence Dufourny, Jean-Claude Thiéry, Aleksandra Szczepkowska, Christine Lagaraine

Publikováno v: Ecotoxicology and Environmental Safety
Ecotoxicology and Environmental Safety, Elsevier, 2016, 124, pp.303-308. ⟨10.1016/j.ecoenv.2015.11.007⟩
Ecotoxicology and Environmental Safety, 2016, 124, pp.303-308. ⟨10.1016/j.ecoenv.2015.11.007⟩

Ortho-substituted polychlorinated biphenyls (PCBs) preferentially accumulate in the brain and cerebrospinal fluid (CSF) compared with other PCBs. We previously demonstrated in ewes that an identical dose of PCB153, the most environmentally prevalent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0922ac7fdcb4c88945a4445599cfeea0
https://hal.archives-ouvertes.fr/hal-01353280

Seasonal Regulation of Reproductive Activity in Sheep

Autor: Benoît Malpaux, Jean-Claude Thiéry

Publikováno v: Annals of the New York Academy of Sciences. 1007:169-175

Sheep in temperate latitudes are seasonal breeders. In female sheep, ovarian activity decreases during the anestrous period due to modification of secretion of luteinizing hormone (LH). The seasonal changes in the hormonal LH pattern mainly reflect a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0007bcd5232ed2b978d98812164eb759
https://doi.org/10.1196/annals.1286.017

Estradiol Acts Locally Within the Retrochiasmatic Area to Inhibit Pulsatile Luteinizing-Hormone Release in the Female Sheep during Anestrus1

Autor: Jean-Claude Thiéry, Bernadette Delaleu, J Gallegos-Sanchez, Alain Caraty, Benoît Malpaux

Publikováno v: Biology of Reproduction. 56:1544-1549

In the present study we have identified a site of action of estradiol in the inhibition of LH secretion during anestrus in the ewe. In the first experiment, we studied six sites: the medial preoptic area, the lateral preoptic area, the ventromedial h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8541ed198456be03809bc775f6045584
https://doi.org/10.1095/biolreprod56.6.1544

Photoperiodic variations of the polysialylated form of neural cell adhesion molecule within the hypothalamus and related reproductive output in the ewe

Autor: Juliette Cognie, Benoît Malpaux, Stephanie Chalivoix, Daniel Guillaume, Laurence Dufourny, Jean-Claude Thiéry

Publikováno v: Cell and Tissue Research
Cell and Tissue Research, Springer Verlag, 2013, 352 (2), pp.387-399. ⟨10.1007/s00441-012-1544-z⟩

Remerciements : INRA, UMR PRC, Plate-Forme CIRE, 37380 Nouzilly; Cellular mechanisms induced by melatonin to synchronise seasonal reproduction in several species, including sheep, remain unclear. We sought to evaluate the scale and physiological sign

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e020d234da8088f402ce85927402f4cc
https://pubmed.ncbi.nlm.nih.gov/23292132

Effect of a two-week treatment with low dose of ortho-substituted polychlorinated biphenyls (PCB104 and PCB153) on VEGF-receptor system expression in the choroid plexus in adult ewes

Autor: Adam Grochowalski, Laurence Dufourny, J. Mlynarczuk, Jean-Claude Thiéry, Janina Skipor, Aleksandra Szczepkowska

Publikováno v: Polish Journal of Veterinary Sciences
Polish Journal of Veterinary Sciences, Not Known, 2012, 15 (4), pp.621-628. ⟨10.2478/v10181-012-0098-z⟩
Polish Journal of Veterinary Sciences 4 (15), 621-628. (2012)

Ortho-substituted polychlorinated biphenyl (PCB) congeners, which constitute a large part of PCB residues found in the environment and in animal tissues, are known to exert potent vascular effects and can activate endothelial cells in the periphery a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d80d9de1485aca05e965f680867818d4
https://hal.archives-ouvertes.fr/hal-01129694