Results 51 to 60 of about 1,151 (190)

Update of the risk assessment on dioxins and dioxin‐like PCBs in feed and food

EFSA Journal, Volume 24, Issue 6, June 2026.
Abstract The European Commission asked EFSA to update its 2018 risk assessment on polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs) and dioxin‐like polychlorinated biphenyls (DL‐PCBs) in feed and food, based on the 2022 WHO Toxic Equivalency Factors (WHO2022‐TEFs).
EFSA Panel on Contaminants in the Food Chain (CONTAM Panel), Helle Katrine Knutsen, Agneta Åkesson, Vasileios Bampidis, Margherita Bignami, Laurent Bodin, James Kevin Chipman, Gisela Degen, Antonio Hernández‐Jerez, Tim Hofer, Christer Hogstrand, Stefano Landi, Jean‐Charles Leblanc, Kyriaki Machera, Evangelia Ntzani, Isabelle P. Oswald, Guido Rychen, Salomon Sand, Katharina Vejdovszky, Barbara Viviani, Jesús del Mazo, Andy Hart, Dieter Schrenk, José Cortiñas Abrahantes, Luisa Ramos Bordajandi, Francesca Riolo, Tuuli Tauriainen, Ron Hoogenboom   +27 more
wiley   +1 more source

From Mesenchymal Stromal Cells to Extracellular Vesicles: Scalable Strategies for Ovarian Stroma Regeneration

Molecular Reproduction and Development, Volume 93, Issue 5, May 2026.
ABSTRACT Ovarian aging is characterized by the reduction of the follicular pool and a progressive loss in oocyte quality. Although these changes have initially been attributed to oocyte alterations, increasing evidence indicates that stromal deterioration plays a central role in this process.
Stefhani Martins Barcelos, Amandda Évelin Silva‐Carvalho, Felipe Perecin, Juliana Lott Carvalho   +3 more
wiley   +1 more source

Side effects of repeated treatments with exogeneous gonadotropins in cattle, sheep and goats

, 1997
peer reviewedPresented in this paper are investigations on a possible side effect of repeated treatments with exogeneous gonadotropins in cattle, sheep and goats.
Drion, Pierre, Ectors, F.J., Mcnamara, M., Heyman, Yvan, Leboeuf, B., Ectors Francis,, Rémy, Brigitte, Baril, Gérard, Desbuleux, H., Desbuleux, Henri, Beckers, Jean-François, Beckers, J.F., Drion, P.V., Cognié, Yves, Theau-Clement, M.C., Ectors, F., Mc Namara, Michael, Leboeuf, Bernard, Theau Clément, Michèle, Remy, Benoit   +19 more
core  

Restoration of corpus luteum angiogenesis in immature hypothyroid rdw rats after thyroxine treatment: Morphologic and molecular evidence

, 2013
Thyroxine (T4) plus gonadotropins might stimulate ovarian follicular angiogenesis in immature infertile hypothyroid rdw rats by upregulating mRNA expression of major angiogenic factors.
Guido Macchiarelli, Kentaro Tanemura, Tanemura, K, PALMERINI, MARIA GRAZIA, CECCONI, Sandra, Eimei Sato, Sandra Cecconi, Sato, E., NOTTOLA, Stefania Annarita, MACCHIARELLI, GUIDO, Maria Grazia Palmerini, Nottola, Sa   +11 more
core   +1 more source

Testicular mRNA‐LNP Delivery: A Novel Therapy for Genetic Spermatogenic Disorders

Advanced Science, Volume 13, Issue 22, 17 April 2026.
In the current study, we developed a novel therapy for genetic spermatogenic disorders. It was revealed that in vivo delivery of mRNA LNP3 could restore spermatogenesis in Msh5D486Y/D486Y and Maps KO mouse models with meiotic arrest. Notably, the offspring without genomic integration was born using ICSI derived from the rescue of Msh5D486Y/D486Y mouse ...
Chenwang Zhang, Nan Liang, Wenbo Li, Shuai Xu, Peng Li, Wanze Ni, Na Li, Sha Han, Ningjing Ou, Haowei Bai, Yuxiang Zhang, Furong Bai, Yifan Sun, Dewei Qian, Xinjie Bu, Erlei Zhi, Ruhui Tian, Yuhua Huang, Jingpeng Zhao, Fujun Zhao, Hao Chen, Zheng Li, Chencheng Yao   +22 more
wiley   +1 more source

Equine follicle-stimulating hormone. Purification, acid dissociation, and binding to equine testicular tissue.

, 1981
International audienceA simple method of purification of equine follicle-stimulating hormone is described by which two forms of the hormone are obtained.
Combarnous, Yves, Hengé, M
core  

Expressions of Kisspeptin System and Ki‐67 in the Reproductive Tissues of Cyclic Bitches

Reproduction in Domestic Animals, Volume 61, Issue 4, April 2026.
ABSTRACT Kisspeptin is a peptide that plays a pivotal role in the central regulation of gonadotropins. It is regarded as a key regulator of reproductive processes, including follicular and luteal development and endometrial remodelling. The objective of this study was to investigate the expression of KISS1, its receptor KISS1R and the proliferation ...
Özgecan Korkmaz Ağaoğlu, Ali Reha Ağaoğlu, Özlem Özmen, Gökhan Bozkurt, Şerife Taşan   +4 more
wiley   +1 more source

Equine gonadotropins as models for glycosylation studies

, 2002
486-506Gonadotropins require carbohydrate for their normal physiological function, however, determining the mechanisms involved is complicated by the existence of several glycosylation sites decorated with a variety of oligosaccharide structures ...
Butnev, Vladimir Y, Bousfield, George R
core  

In vivo effect of epidermal growth factor, interleukin-1 beta, and interleukin-1RA on equine preovulatory follicles

, 2003
International audienceParacrine factors have significant effects during folliculogenesis. Because of various morphological features, the mare is a convenient model to study in vivo the effects of factors involved in periovulatory events.
Duchamp, Guy, Gérard, Nadine, Martoriati, Alain   +2 more
core   +1 more source

Physical-chemical and biological characterization of different preparations of equine chorionic gonadotropin

Journal of Veterinary Science, 2016
Ovarian stimulation with commercial preparations of equine chorionic gonadotropin (eCG) produces extremely variable responses in domestic animals, ranging from excessive stimulation to practically no stimulation, when applied on the basis of their declared unitage.
Alvarez, Rafael Herrera, Natal, Fabio Luis Nogueira, Ribela, Maria Teresa Carvalho Pinto, de Almeida, Beatriz Elane, de Oliveira, João Ezequiel, Bartolini, Paolo   +5 more
openaire   +2 more sources