Results 11 to 20 of about 17,214 (224)

Effects of Recombinant Agouti-Signaling Protein on Melanocortin Action [PDF]

open access: yesMolecular Endocrinology, 1997
Mouse agouti protein is a paracrine signaling molecule that has previously been demonstrated to be an antagonist of melanocortin action at several cloned rodent and human melanocortin receptors. In this study we report the effects of agouti-signaling protein (ASIP), the human homolog of mouse agouti, on the action of alpha-MSH or ACTH at the five known
Y K, Yang   +6 more
openaire   +3 more sources

Role of the Melanocortin System in Gonadal Steroidogenesis of Zebrafish

open access: yesAnimals, 2022
In teleost, as in other vertebrates, stress affects reproduction. A key component of the stress response is the pituitary secretion of the adrenocorticotropic hormone (ACTH), which binds to the melanocortin 2 receptor (MC2R) in the adrenal glands and ...
Sandra Navarro   +6 more
doaj   +1 more source

Agouti-Signalling Protein Overexpression Reduces Aggressiveness in Zebrafish

open access: yesBiology, 2023
Feeding motivation plays a crucial role in food intake and growth. It closely depends on hunger and satiation, which are controlled by the melanocortin system. Overexpression of the inverse agonist agouti-signalling protein (ASIP) and agouti-related protein (AGRP) leads to enhanced food intake, linear growth, and weight. In zebrafish, overexpression of
Ana Rocha   +3 more
openaire   +4 more sources

Agouti-related protein as the glucose signaling sensor in the central melanocortin circuits in regulating fish food intake

open access: yesFrontiers in Endocrinology, 2022
Agouti-related protein (AgRP) is a neuropeptide synthesized by AgRP/NPY neurons and transcribed as 132 amino acids in humans and 142 amino acids (AgRP1) in Japanese seabass (Lateolabrax maculatus) fish.
Juan Han   +5 more
doaj   +1 more source

Role of Hypothalamic Transforming Growth Factor-β (TGF-β)/Smad Signaling in Feeding Regulation in Chickens

open access: yesThe Journal of Poultry Science, 2022
Previous studies in mammalian obesity models have suggested that central transforming growth factor-β (TGF-β) controls the gene expression of appetite-regulating neuropeptides and peripheral energy metabolism.
Takaoki Saneyasu   +5 more
doaj   +1 more source

Melanism in peromyscus is caused by independent mutations in agouti. [PDF]

open access: yesPLoS ONE, 2009
Identifying the molecular basis of phenotypes that have evolved independently can provide insight into the ways genetic and developmental constraints influence the maintenance of phenotypic diversity.
Evan P Kingsley   +3 more
doaj   +1 more source

Physiological and Anatomical Circuitry between Agouti-Related Protein and Leptin Signaling* [PDF]

open access: yesEndocrinology, 1999
Agouti-related protein (AGRP) is an orexigenic neuropeptide that acts via central melanocortin receptors, and whose messenger RNA (mRNA) levels are elevated in leptin-deficient mice. Fasting associated with a decline in circulating leptin normally causes a 15-fold elevation of hypothalamic Agrp mRNA levels but has no effect in leptin-deficient mice ...
B D, Wilson   +6 more
openaire   +3 more sources

Differential Signaling Profiles of MC4R Mutations with Three Different Ligands [PDF]

open access: yes, 2020
The melanocortin 4 receptor (MC4R) is a key player in hypothalamic weight regulation and energy expenditure as part of the leptin-melanocortin pathway. Mutations in this G protein coupled receptor (GPCR) are the most common cause for monogenetic obesity,
Annibale, Paolo   +8 more
core   +3 more sources

Modulation of murine melanocyte function invitro by agouti signal protein [PDF]

open access: yesThe EMBO Journal, 1997
Molecular and biochemical mechanisms that switch melanocytes between the production of eumelanin or pheomelanin involve the opposing action of two intercellular signaling molecules, alpha-melanocyte-stimulating hormone (MSH) and agouti signal protein (ASP).
C, Sakai   +8 more
openaire   +2 more sources

A central role for C1q/TNF-related protein 13 (CTRP13) in modulating food intake and body weight. [PDF]

open access: yes, 2013
C1q/TNF-related protein 13 (CTRP13), a hormone secreted by adipose tissue (adipokines), helps regulate glucose metabolism in peripheral tissues. We previously reported that CTRP13 expression is increased in obese and hyperphagic leptin-deficient mice ...
Byerly, Mardi S   +5 more
core   +6 more sources

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