Results 61 to 70 of about 2,975 (220)

Does kisspeptin signalling have a role in the testes?

Frontiers in Endocrinology, 2013
Kisspeptins are a family of overlapping neuropeptides encoded by the Kiss1 gene that regulate the mammalian reproductive axis by a central action in the hypothalamus to stimulate GnRH release. Kisspeptins and their receptor (Gpr54 also called Kiss1r) are
Mei eHua, Joanne eDoran, Victoria eKyle, Shel-Hwa eYeo, William Henry Colledge   +4 more
doaj   +1 more source

Neonatal overnutrition increases testicular size and expression of luteinizing hormone ß-subunit in peripubertal male rats [PDF]

, 2018
Proper nutrition is important for growth and development. Maturation of the reproductive axis and the timing of pubertal onset can be delayed when insufficient nutrition is available, or possibly advanced with nutritional abundance. The childhood obesity
Argente, Jesús, Argente-Arizón, Pilar, Castro-González, David, Chowen, Julie Ann, Díaz, Francisca, Fernández-Gómez, María J., Sánchez-Garrido, Miguel Ángel, Tena-Sempere, Manuel   +7 more
core   +2 more sources

Seasonal Variation in the Gonadotropin-Releasing Hormone Response to Kisspeptin in Sheep: Possible Kisspeptin Regulation of the Kisspeptin Receptor [PDF]

Neuroendocrinology, 2012
Kisspeptin signaling in the hypothalamus appears critical for the onset of puberty and driving the reproductive axis. In sheep, reproduction is seasonal, being activated by short days and inhibited by long days. During the non-breeding (anestrous) season, gonadotropin-releasing hormone (GnRH) and gonadotropin secretion is reduced, as is the expression ...
Qun, Li, Alexandra, Roa, Iain J, Clarke, Jeremy T, Smith   +3 more
openaire   +2 more sources

Vascular health and exercise in females throughout the lifespan: Exploring puberty, pregnancy and menopause

Experimental Physiology, EarlyView.
Abstract This narrative review highlights the impact of exercise on vascular health in females over the lifespan with an emphasis on puberty, pregnancy and menopause. These events encompass substantial changes in sex hormone levels, particularly oestrogens and progesterone.
Kathleen B. Miller, M. Erin Moir, Brandon G. Fico   +2 more
wiley   +1 more source

Endocrine disruptors and abnormalities of pubertal development [PDF]

, 2008
Onset and development of puberty is regulated by the neuroendocrine system. Population-based studies worldwide have observed secular trends towards earlier puberty development. These changes are apparently caused by environmental factors such as improved
Adair, Adair, Berg-Kelly, Blanck, Colon, DeCastro, Den Hond, Den Hond, Dunger, Gamba, Gladen, Gore, Grumbach, Guo, Hertz-Picciotto, Ibanez, Kaya, Klein, Krstevska-Konstantinova, Kubo, Kuhl, Lebrethon, Lee, Legler, Levine, Levy, Lewis, Marshall, Marshall, McKee, McLachlan, Mol, Naftolin, Ohtake, Parent, Patton, Petroff, Proos, Ramirez, Rasier, Rockett, Roselli, Rubin, Safe, Sagiv, Saiyed, Selevan, Singh, Skynner, Staessen, Styne, Teilmann, Tena-Sempere, Tena-Sempere, Terasawa, Traggiai, Vasiliu, Vinggaard, Wade, Warner, Wu, Wu, Zeinoaldini   +62 more
core   +2 more sources

Kisspeptin as a test of hypothalamic dysfunction in pubertal and reproductive disorders

Andrology, Volume 14, Issue 4, Page 1002-1016, May 2026.
Abstract The hypothalamic–pituitary–gonadal axis is regulated by the gonadotropin‐releasing hormone pulse generator in the hypothalamus. This is comprised of neurons that secrete kisspeptin in a pulsatile manner to stimulate the release of GnRH, and, in turn, downstream gonadotropins from the pituitary gland, and subsequently sex steroids and ...
Aureliane C. S. Pierret, Aaran H. Patel, Elisabeth Daniels, Alexander N. Comninos, Waljit S. Dhillo, Ali Abbara   +5 more
wiley   +1 more source

Markers of Genetic Variation in Blue Gourami (Trichogaster trichopterus) as a Model for Labyrinth Fish

Biology, 2021
Markers of genetic variation between species are important for both applied and basic research. Here, various genes of the blue gourami (Trichogaster trichopterus, suborder Anabantoidei, a model labyrinth fish), many of them involved in growth and ...
Gad Degani, Isana Veksler-Lublinsky, Ari Meerson   +2 more
doaj   +1 more source

Kisspeptin and Puberty in Mammals [PDF]

, 2013
Since the discovery of the G-protein coupled receptor 54 (kisspeptin receptor) and its ligand, kisspeptin, our understanding of the neurobiological mechanisms that govern the pituitary-gonadal axis has evolved dramatically. In this chapter, we have reviewed progress regarding the relationship between kisspeptin and puberty, and have proposed a novel ...
Ei, Terasawa, Kathryn A, Guerriero, Tony M, Plant   +2 more
openaire   +2 more sources

The Role of Kisspeptin in Sexual Behavior [PDF]

Seminars in Reproductive Medicine, 2019
AbstractSexual behavior is essential for the perpetuation of a species. In female rodents, mate preference and lordosis behavior depend heavily on the integration of olfactory cues into the neuroendocrine brain, yet its underlying neural circuits are not well understood.
Hellier, Vincent, Brock, Olivier, Bakker, Julie   +2 more
openaire   +4 more sources

Annual Banned‐Substance Review 18th Edition—Analytical Approaches in Human Sports Drug Testing 2024/2025

Drug Testing and Analysis, Volume 18, Issue 4, Page 458-482, April 2026.
New insights into drug metabolism, distribution, elimination, and detection assays for drugs and methods of sports doping published between 2024 and 2025 are critically reviewed and evaluated in context with the Prohibited List 2025 as established by the World Anti‐Doping Agency.
Mario Thevis, Tiia Kuuranne, Hans Geyer
wiley   +1 more source