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This paper aims to contribute to the discussion of learning as an affectation of the body, from the analysis of scientific communication practices with children aged five and six years in the scope of the extension project Children's University of the Federal University of Minas Gerais. As a theoretical-methodological and analytical repertoire, the Actor Network Theory was explored. The analyses carried out gave visibility to learning that takes place not as an individual or mental process, but which instead emerges from relationships; a process centered not only on rationality, but also on the power of bodies to affect themselves, to sensitize themselves to differences. In the end, it is concluded that, based on this view of learning, the objective in scientific communication for children becomes less the dissemination of concepts, and – rather – more the construction of sensitive bodies that move, transform and discover themselves as producers of knowledge., Este trabalho visa a contribuir com a discussão sobre a aprendizagem enquanto afetação do corpo, a partir da análise das práticas de divulgação científica com crianças de cinco e seis anos no âmbito do projeto de extensão Universidade das Crianças da Universidade Federal de Minas Gerais. Como repertório teórico-metodológico e analítico, explorou-se a Teoria Ator-Rede. As análises realizadas deram visibilidade a uma aprendizagem que se dá não enquanto processo individual e mental, mas que emerge das relações; um processo centrado não apenas na racionalidade, mas também na potência dos corpos de se afetarem, de se sensibilizarem para as diferenças. Ao final, conclui-se que, a partir dessa perspectiva de aprendizagem, o objetivo da divulgação científica com crianças passa a ser menos a difusão de conceitos, e mais a construção de corpos sensíveis, que se deslocam, se transformam e se descobrem enquanto produtores de conhecimento.

Recent studies have shown that patterns of colocalisation of hormones in enteroendocrine cells are more complex than previously appreciated and that the patterns differ substantially between species. In this study, the human sigmoid colon is investigated by immunohistochemistry for the presence of gastrointestinal hormones and their colocalisation. The segments of colon were distant from the pathology that led to colectomy and appeared structurally normal. Only four hormones, 5-hydroxytryptamine (5-HT), glucagon-like peptide 1 (GLP-1), peptide YY (PYY) and somatostatin, were common in enteroendocrine cells of the human colon. Cholecystokinin, present in the colon of some species, was absent, as were glucose-dependent insulinotropic peptide, ghrelin and motilin. Neurotensin cells were extremely rare. The most numerous cells were 5-HT cells, some of which also contained PYY or somatostatin and very rarely GLP-1. Almost all GLP-1 cells contained PYY. It is concluded that enteroendocrine cells of the human colon, like those of other regions and species, exhibit overlapping patterns of hormone colocalisation and that the hormones and their patterns of expression differ between human and other species.