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Articles by Raphaella Jackson
Bacterial whole-cell biosensors illuminate spatially variable sialic acid availability within the inflamed mammalian gut
Abstract Host mucin-derived sialic acids are key drivers of microbial colonisation, growth and pathogenicity within the mammalian gut. However, their study is hindered by complex spatiotemporal dynamics: Many gut metabolites, including sialic acids, are rapidly consumed, transformed or absorbed by the microbiota or host, meaning that conventional measurements of faeces or bulk digesta often fail to capture their true local availability.
The maternal inflammatory proteome during pregnancy and its role in predicting the risk of spontaneous preterm birth
The coauthors affiliated with Mirvie are inventors of patented applications that cover the detection, diagnosis, or treatment of pregnancy complications and/or have an equity interest in Mirvie. All the cohort contributors were compensated for sample collection and/or shipping.
Imaging of live bacterial whole-cell biosensors illuminates spatial sialic acid availability within the inflamed mammalian gut
Abstract Host mucin-derived sialic acids are key drivers of microbial colonisation, growth and pathogenicity within the mammalian gut. However, their study is hindered by complex spatiotemporal dynamics, with availability driven by the interplay of microbial sialidase enzyme activity and microbial utilisation. Here, we demonstrate regional increases in the bioavailability of sialic acid in the inflamed mouse gut.
Population incidence and associated mortality of urinary tract infection in people living with dementia
Abstract Urinary tract infections (UTIs) frequently cause hospitalisation and death in people living with dementia (PLWD). We examine UTI incidence and associated mortality among PLWD relative to matched controls and people with diabetes and investigate whether delayed or withheld treatment further impacts mortality. Data were extracted for n=2,449,814 people aged ≥ 50 in Wales from 2000-2021, with groups matched by age, sex, and multimorbidity.
Evidence of phylosymbiosis in Formica ants
New Results doi: https://doi.org/10.1101/2023.01.20.524858 Abstract Insects share intimate relationships with microbes that play important roles in their biology. Yet our understanding of how host-bound microbial communities assemble and perpetuate over evolutionary time is limited. Ants host a wide range of microbes with diverse functions and are an emerging model for studying the evolution of insect microbiomes.
Evolution: The Legacy of Endosymbiosis in Ants
A symbiotic partnership with Blochmannia bacteria is thought to underpin the ecological success of carpenter ants. Disentangling the molecular interactions between the mutualistic partners supports an old hypothesis that many other ants also had similar symbioses and lost them.
Parallel Evolution in the Integration of a Co-obligate Aphid Symbiosis
Highlights • Aphids have independently evolved dependence on Serratia symbiotica at least 4 times • The integration of the new co-obligate symbiont proceeds in a predictable manner • Loss of the riboflavin and peptidoglycan pathways in Buchnera leads to co-dependence • Amino acid synthesis is taken over by Serratia in a second phase of complementarity Sumx 1 McCutcheon J.P. McDonald B.R. Moran N.A. Convergent evolution of metabolic roles in bacterial co-symbionts of insects. Proc. Natl. Acad. Sci.
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