Origin of tuberculosis in the Paleolithic predicts unprecedented population growth and female resistance
Cardona, Pere-Joan (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Català, Martí (Institut Germans Trias i Pujol)
Prats, Clara (Universitat Politècnica de Catalunya)

Data:	2020
Resum:	Current data estimate the origin of Mycobacterium tuberculosis complex (MtbC) infection around 73,000 years before the common era (BCE), and its evolution to "modern" lineages around 46,000 BCE. Being MtbC a major killer of humanity, the question is how both species could persist. To answer this question, we have developed two new epidemiological models (SEIR type), adapted to sex dimorphism and comparing coinfection and superinfection for different MtbC lineages. We have attributed a higher resistance/tolerance to females to explain the lower incidence noted in this sex, a better health status in the Paleolithic compared to the Neolithic, and a higher dissemination of "modern" lineages compared to "ancient" ones. Our findings show the extraordinary impact caused by "modern" lineages, provoking the extinction of the groups infected. This could only be overcomed by an unprecedented population increase (x20 times in 100 years) and helped with the protection generated by previous infection with "ancient" lineages. Our findings also suggest a key role of female resistance against MtbC. This data obliges us to rethink the growth population parameters in the Paleolithic, which is crucial to understanding the survival of both MtbC and humans, and to decipher the nature of human female resistance against TB.
Nota:	The project leading to these results has received funding from "la Caixa" Foundation (ID 100010434), under agreement LCF/PR/GN16/10290002
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Microbiologia
Publicat a:	Scientific reports, Vol. 10 (january 2020) , ISSN 2045-2322

DOI: 10.1038/s41598-019-56769-1
PMID: 31913313

20 p, 4.6 MB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències de la salut i biociències > Institut d'Investigació en Ciencies de la Salut Germans Trias i Pujol (IGTP)
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