Article révisé par les pairs
Résumé : Created in 1987, the department of medical genetics finds its origins in molecular endocrinology research which had developed from the seventies at the Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) of the Faculty of Medicine. After its fusion with the Center of Human Genetics of the ULB, in 1992, the department is composed of three units: the lab of molecular genetics and oncology, the lab of cytogenetics and a clinical genetics unit. One thousand consultations of genetic counseling and more than 15,000 molecular or cytogenetic diagnostic procedures are performed annually. The development of the clinical activities was paralleled by a very active research activity, resulting in a series of "firsts". Amongst the main results are: the identification of the first mutations responsible for congenital hypothyroidism; the molecular cloning of the TSH receptor and of a series of "orphan" G protein-coupled receptors; the identification of a novel neuropeptide, nociceptin, by the first example of "reverse pharmacology"; the identification of olfactory receptors on the sperm of mammals, including man; the identification in molecular terms of the mechanisms responsible for acquired and hereditary hyperthyroidisms; the identification of the chemokine receptor CCR5 as the major coreceptor of HIV-1, and of the prevalent mutation of CCR5 conferring resistance to HIV to about 1% of the European population.

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