Narratives in Exposomics: a Reversed Epistemic Determinism? - Archive ouverte HAL
Article Dans Une Revue History and Philosophy of the Life Sciences Année : 2024

Narratives in Exposomics: a Reversed Epistemic Determinism?

Résumé

Since the completion of the Human Genome Project (HGP), biomedical sciences have moved away from a gene-centred view and towards a multi-factorial one in which environment, broadly speaking, plays a central role in the determination of human health and disease. Environmental exposures have been shown to be highly prevalent in disease causation. They are considered as complementary to genetic factors in the etiology of diseases, hence the introduction of the concept of the “exposome” as encompassing the totality of human environmental exposures, from conception onwards (Wild 2005), and the launch of the Human Exposome Project (HEP) which aims to complement the HGP. At first sight, and seen as complementary to the genome, the exposome could thus appear as contributing to the rise of novel postgenomic deterministic narratives which place the environment at their core. Is this really the case? If so, what sort of determinism is at work in exposomics research? Is it a case of environmental determinism, and if so, in what sense? Or is it a new sort of deterministic view? In this paper, we first show that causal narratives in exposomics are still very similar to gene-centred deterministic narratives. They correspond to a form of Laplacian determinism and, above all, to what Claude Bernard called the “determinism of a phenomenon”. Second, we introduce the notion of “reversed heuristic determinism” to characterize the specific deterministic narratives present in exposomics. Indeed, the accepted sorts of external environmental exposures conceived as being at the origins of diseases are determined, methodologically speaking, by their identifiable internal and biological markers. We conclude by highlighting the most relevant implications of the presence of this heuristic determinism in exposomics research.
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Dates et versions

hal-04382293 , version 1 (09-01-2024)

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Francesca Merlin, Élodie Giroux. Narratives in Exposomics: a Reversed Epistemic Determinism?. History and Philosophy of the Life Sciences, 2024, 46 (3), pp.22. ⟨10.1007/s40656-024-00620-y⟩. ⟨hal-04382293⟩
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