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Hygiene may attenuate selection for antibiotic resistance by changing microbial community structure.
Aspenberg M, Maad Sasane S, Nilsson F, Brown SP, Wollein Waldetoft K. Aspenberg M, et al. Among authors: brown sp. Evol Med Public Health. 2023 Jan 18;11(1):1-7. doi: 10.1093/emph/eoac038. eCollection 2023. Evol Med Public Health. 2023. PMID: 36687161 Free PMC article.
We show this in a mathematical model of bacterial metacommunity dynamics, and test the results against data on antibiotic resistance, antibiotic treatment, and the use of alcohol-based hand rub in long-term care facilities. The data are consistent with hand rub use attenua …
We show this in a mathematical model of bacterial metacommunity dynamics, and test the results against data on antibiotic resistance, antibi …
Causes and Consequences of COVID-19-Associated Bacterial Infections.
Farrell JM, Zhao CY, Tarquinio KM, Brown SP. Farrell JM, et al. Among authors: brown sp. Front Microbiol. 2021 Jul 20;12:682571. doi: 10.3389/fmicb.2021.682571. eCollection 2021. Front Microbiol. 2021. PMID: 34354682 Free PMC article.
From these models, we conclude that currently available data are not sufficient to discriminate between these alternate causal pathways, and we highlight what data are required to determine the relative contribution of bacterial infection to COVID-19 morbidity and mortality. We f …
From these models, we conclude that currently available data are not sufficient to discriminate between these alternate causal pathways, and …
Recovery and resiliency of skin microbial communities on the southern leopard frog (Lithobates sphenocephalus) following two biotic disturbances.
Weeks DM, Parris MJ, Brown SP. Weeks DM, et al. Among authors: brown sp. Anim Microbiome. 2020 Sep 22;2(1):35. doi: 10.1186/s42523-020-00053-5. Anim Microbiome. 2020. PMID: 33499962 Free PMC article.
RESULTS: Exposing Lithobates sphenocephalus (southern leopard frog) adults to the biopesticidal bacteria Bacillus thuringiensis, followed by exposure to the fungal pathogen Bd, did not have long term impacts on the microbiome. After initial shifts, microbial communities re …
RESULTS: Exposing Lithobates sphenocephalus (southern leopard frog) adults to the biopesticidal bacteria Bacillus thuringiensis, followed by …
In silico bacteria evolve robust cooperaion via complex quorum-sensing strategies.
Wang Y, Rattray JB, Thomas SA, Gurney J, Brown SP. Wang Y, et al. Among authors: brown sp. Sci Rep. 2020 May 25;10(1):8628. doi: 10.1038/s41598-020-65076-z. Sci Rep. 2020. PMID: 32451396 Free PMC article.
We contrast our in silico results given defined ecological challenges with bacterial QS architectures that have evolved under largely unknown ecological contexts, highlighting the critical role of genetic constraints in shaping the shorter term (experimental evolution) dyn …
We contrast our in silico results given defined ecological challenges with bacterial QS architectures that have evolved under largely unknow …
Weak Intermolecular CH···N Hydrogen Bonding: Determination of 13CH-15N Hydrogen-Bond Mediated J Couplings by Solid-State NMR Spectroscopy and First-Principles Calculations.
Webber AL, Yates JR, Zilka M, Sturniolo S, Uldry AC, Corlett EK, Pickard CJ, Pérez-Torralba M, Angeles Garcia M, Santa Maria D, Claramunt RM, Brown SP. Webber AL, et al. Among authors: brown sp. J Phys Chem A. 2020 Jan 23;124(3):560-572. doi: 10.1021/acs.jpca.9b10726. Epub 2020 Jan 9. J Phys Chem A. 2020. PMID: 31880451 Free article.
Moreover, the GIPAW calculations show a clear correlation between increasing (2h)J(CN) (and (3h)J(CN)) coupling and reducing C(H)...N and H...N hydrogen-bonding distances, with the Fermi contact term accounting for at least 98% of the isotropic (2h)J(CN) coupling....
Moreover, the GIPAW calculations show a clear correlation between increasing (2h)J(CN) (and (3h)J(CN)) coupling and reducing C(H)...N and H. …
Indirect Fitness Benefits Enable the Spread of Host Genes Promoting Costly Transfer of Beneficial Plasmids.
Dimitriu T, Misevic D, Lotton C, Brown SP, Lindner AB, Taddei F. Dimitriu T, et al. Among authors: brown sp. PLoS Biol. 2016 Jun 7;14(6):e1002478. doi: 10.1371/journal.pbio.1002478. eCollection 2016 Jun. PLoS Biol. 2016. PMID: 27270455 Free PMC article.
Our work shows that horizontal gene transfer in bacteria can be promoted by bacterial hosts themselves and not only by MGEs. In the longer term, the success of cells bearing beneficial MGEs combined with biased transfer leads to an association between high donor ability, d …
Our work shows that horizontal gene transfer in bacteria can be promoted by bacterial hosts themselves and not only by MGEs. In the longer …
The relative importance of cancer-related and general health worries and distress among older adult, long-term cancer survivors.
Deimling GT, Brown SP, Albitz C, Burant CJ, Mallick N. Deimling GT, et al. Among authors: brown sp. Psychooncology. 2017 Feb;26(2):182-190. doi: 10.1002/pon.4015. Epub 2015 Oct 22. Psychooncology. 2017. PMID: 26494568
The analysis also examines how these in turn impact anxiety and depression among older adult, long-term cancer survivors. METHODS: Data from a longitudinal study of 245 older-adult (age 60+ years), long-term survivors (5 or more years after diagnosis) of breast, pro …
The analysis also examines how these in turn impact anxiety and depression among older adult, long-term cancer survivors. METHODS: Da …
Deep Ion Torrent sequencing identifies soil fungal community shifts after frequent prescribed fires in a southeastern US forest ecosystem.
Brown SP, Callaham MA Jr, Oliver AK, Jumpponen A. Brown SP, et al. FEMS Microbiol Ecol. 2013 Dec;86(3):557-66. doi: 10.1111/1574-6941.12181. Epub 2013 Aug 1. FEMS Microbiol Ecol. 2013. PMID: 23869991 Free article.
Prescribed burning is a common management tool to control fuel loads, ground vegetation, and facilitate desirable game species. We evaluated soil fungal community responses to long-term prescribed fire treatments in a loblolly pine forest on the Piedmont of Georgia and uti …
Prescribed burning is a common management tool to control fuel loads, ground vegetation, and facilitate desirable game species. We evaluated …
Unexpected effects of third-order cross-terms in heteronuclear spin systems under simultaneous radio-frequency irradiation and magic-angle spinning NMR.
Tatton AS, Frantsuzov I, Brown SP, Hodgkinson P. Tatton AS, et al. Among authors: brown sp. J Chem Phys. 2012 Feb 28;136(8):084503. doi: 10.1063/1.3684879. J Chem Phys. 2012. PMID: 22380049 Free article.
While the heteronuclear coupling is generally assumed to be efficiently suppressed by sample spinning at the magic angle, we show that under conditions typically used in solid-state NMR, there is a significant third-order cross-term from this coupling under the conditions …
While the heteronuclear coupling is generally assumed to be efficiently suppressed by sample spinning at the magic angle, we show that under …
Ecology of microbial invasions: amplification allows virus carriers to invade more rapidly when rare.
Brown SP, Le Chat L, De Paepe M, Taddei F. Brown SP, et al. Curr Biol. 2006 Oct 24;16(20):2048-52. doi: 10.1016/j.cub.2006.08.089. Curr Biol. 2006. PMID: 17055985 Free article.
., bacteriocins ) and via the release of parasites (e.g., temperate phage ). We compared the short-term population dynamics of susceptible E. coli K12 and isogenic carriers of phage varphi80 in experimental cultures to that anticipated by mathematical models using independ …
., bacteriocins ) and via the release of parasites (e.g., temperate phage ). We compared the short-term population dynamics of suscep …