Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386475104> ?p ?o ?g. }
- W4386475104 abstract "Abstract The analysis of microbial genomes from human archaeological samples offers a historic snapshot of ancient pathogens and provides insights into the origins of modern infectious diseases. Here, we analyze metagenomic datasets from 38 human archaeological samples and identify bacterial genomic sequences related to modern-day Clostridium tetani , which produces the tetanus neurotoxin (TeNT) and causes the disease tetanus. These genomic assemblies had varying levels of completeness, and a subset of them displayed hallmarks of ancient DNA damage. Phylogenetic analyses revealed known C. tetani clades as well as potentially new Clostridium lineages closely related to C. tetani . The genomic assemblies encode 13 TeNT variants with unique substitution profiles, including a subgroup of TeNT variants found exclusively in ancient samples from South America. We experimentally tested a TeNT variant selected from an ancient Chilean mummy sample and found that it induced tetanus muscle paralysis in mice, with potency comparable to modern TeNT. Thus, our ancient DNA analysis identifies DNA from neurotoxigenic C. tetani in archaeological human samples, and a novel variant of TeNT that can cause disease in mammals." @default.
- W4386475104 created "2023-09-07" @default.
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- W4386475104 date "2023-09-06" @default.
- W4386475104 modified "2023-09-28" @default.
- W4386475104 title "Ancient Clostridium DNA and variants of tetanus neurotoxins associated with human archaeological remains" @default.
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