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Introduction/overview Nuclear receptors (NRs) are evolutionarily related DNA-binding transcription factors (TFs) ( Gronemeyer et al . 2004 , Chambon 2005 , Evans 2005 ). They regulate many aspects of mammalian physiology, including metabolism
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actions of SRIF and DA are mediated by specific G-protein-coupled receptors (GPCR) that are present on the cells of both the normal gland and of the pituitary adenomas: SRIF receptor (SSR) subtypes 1, 2, 3 and 5 (sst 1–5 ; Miller et al . 1995 , Hofland
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-protein-coupled somatostatin receptors (SSTR), SSTR1–SSTR5, and the description of the downstream signaling and function highlighted both hormone secretion inhibitory activity and an antiproliferative role. Furthermore, identification of key SST molecular structural
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the metastatic process of breast cancer. The intricacy of these conflicting observations intriguingly lies somewhere in the spectrum of signaling pathways, involving multiple receptor isoforms and the interaction of the breast cancer cells with the
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. 2003 , Perry et al . 2007 ). The physiological activities of GLP1 occur by interaction with the GLP1 receptor (GLP1R), which is expressed in pancreatic islets, brain, heart, kidney, and the gastrointestinal tract ( Graziano et al . 1993 , Wei
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of Ang II receptor blockers have demonstrated the existence of two major subtypes of Ang II receptors, AT 1 and AT 2 . Both receptors belong to the seven-transmembrane receptor or G protein-coupled receptor (GPCR) superfamily. Since the first
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Estrogens are key mediators of endometrial homeostasis; hence, any dysregulation in their synthesis, metabolism, and/or activities irrefutably leads to a broad range of endometrial pathologies. Two major estrogen receptor proteins, estrogen
University of Chinese Academy of Sciences, Beijing, China
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University of Chinese Academy of Sciences, Beijing, China
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University of Chinese Academy of Sciences, Beijing, China
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University of Chinese Academy of Sciences, Beijing, China
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University of Chinese Academy of Sciences, Beijing, China
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University of Chinese Academy of Sciences, Beijing, China
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University of Chinese Academy of Sciences, Beijing, China
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University of Chinese Academy of Sciences, Beijing, China
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University of Chinese Academy of Sciences, Beijing, China
Key Laboratory of Drug Target and Drug for Degenerative Disease, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
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disturbances, edema, weight gain and lactic acidosis ( Moller 2001 , Xu et al . 2014 ). For example, glucagon-like peptide-1 receptor agonists (GLP-1 RAs) are newly injectable peptide drugs used for the treatment of hyperglycemia ( Scheen 2016 ). They are
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-linked sites are expendable for hCG function ( Wu et al . 1994 ), whereas N-linked glycosylations play a role in signal transduction but do not affect receptor-binding affinity ( Moyle et al . 1975 ). Deglycosylated hCG forms a tight complex with its receptor
Department of Experimental Biology, Instituto de Biologia Molecular e Celular (IBMC), IPATIMUP, Faculty of Nutrition and Food Sciences, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
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Department of Experimental Biology, Instituto de Biologia Molecular e Celular (IBMC), IPATIMUP, Faculty of Nutrition and Food Sciences, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
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Department of Experimental Biology, Instituto de Biologia Molecular e Celular (IBMC), IPATIMUP, Faculty of Nutrition and Food Sciences, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
Department of Experimental Biology, Instituto de Biologia Molecular e Celular (IBMC), IPATIMUP, Faculty of Nutrition and Food Sciences, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
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Introduction Melanocortin receptors (MCRs) have received increased attention by the pharmaceutical industry due to their involvement in pigmentation, steroidogenesis, energy homoeostasis, sexual function, inflammation and exocrine gland regulation