Luque, Raul MCordoba-Chacon, JosePozo-Salas, Ana IPorteiro, Begoñade Lecea, LuisNogueiras, RubenGahete, Manuel DCastaño, Justo P2023-01-252023-01-252016-11-01Luque RM, Cordoba-Chacon J, Pozo-Salas AI, Porteiro B, de Lecea L, Nogueiras R, et al. Obesity- and gender-dependent role of endogenous somatostatin and cortistatin in the regulation of endocrine and metabolic homeostasis in mice. Sci Rep. 2016 Nov 30;6:37992http://hdl.handle.net/10668/10651Somatostatin (SST) and cortistatin (CORT) regulate numerous endocrine secretions and their absence [knockout (KO)-models] causes important endocrine-metabolic alterations, including pituitary dysregulations. We have demonstrated that the metabolic phenotype of single or combined SST/CORT KO-models is not drastically altered under normal conditions. However, the biological actions of SST/CORT are conditioned by the metabolic-status (e.g. obesity). Therefore, we used male/female SST- and CORT-KO mice fed low-fat (LF) or high-fat (HF) diet to explore the interplay between SST/CORT and obesity in the control of relevant pituitary-axes and whole-body metabolism. Our results showed that the SST/CORT role in the control of GH/prolactin secretions is maintained under LF- and HF-diet conditions as SST-KOs presented higher GH/prolactin-levels, while CORT-KOs displayed higher GH- and lower prolactin-levels than controls under both diets. Moreover, the impact of lack of SST/CORT on the metabolic-function was gender- and diet-dependent. Particularly, SST-KOs were more sensitive to HF-diet, exhibiting altered growth and body-composition (fat/lean percentage) and impaired glucose/insulin-metabolism, especially in males. Conversely, only males CORT-KO under LF-diet conditions exhibited significant alterations, displaying higher glucose-levels and insulin-resistance. Altogether, these data demonstrate a tight interplay between SST/CORT-axis and the metabolic status in the control of endocrine/metabolic functions and unveil a clear dissociation of SST/CORT roles.enAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/AnimalsDietary fatsDisease models, animalHomeostasisMaleMiceMice, knockoutNeuropeptidesObesityPituitary glandSex characteristicsSomatostatinresearch article27901064open accessCaracteres sexualesHipófisisNeuropéptidosObesidadRatones noqueadosSomatostatina10.1038/srep379922045-2322PMC5128804https://www.nature.com/articles/srep37992.pdfhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5128804/pdf