Douglas Kell
@dbkell.bsky.social
1.7K followers
1.9K following
130 posts
Research Scientist who prefers facts to lies. Focus on Long COVID. Free book: http://osf.io/pnxcs/.
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Reposted by Douglas Kell
TRAstonDrs
@castltrastondrs.bsky.social
· Aug 19
Douglas Kell
@dbkell.bsky.social
· Aug 5
Reposted by Douglas Kell
Reposted by Douglas Kell
Douglas Kell
@dbkell.bsky.social
· Jul 12
Rapid accumulation of fluorophores and fast kill identify drugs with bactericidal effects against Gram-negative bacteria
Antimicrobial resistance is a massive threat, but it can take decades to develop a new antibiotic. That time could be drastically reduced if we were able to anticipate desirable properties of a chemic...
www.biorxiv.org
Douglas Kell
@dbkell.bsky.social
· Jul 11
AmyloGram Reveals Amyloidogenic Potential in Stroke Thrombus Proteomes
Background: Amyloidogenic proteins play a central role in a range of pathological conditions, yet their presence in thrombi has only recently been recognized. Whether computational prediction tools ca...
www.biorxiv.org
Douglas Kell
@dbkell.bsky.social
· Jul 8
Membrane proteins ClcB, PtsI and YcaM mediate the bactericidal effects of colistin in Escherichia coli
Bacteria can be killed very effectively by targeting their first line of protection. The cell membranes (outer and inner membranes) of Gram-negative bacteria are directly targeted by antibiotics, such as polymyxins, via electrostatic interactions with their lipopolysaccharide (LPS) fraction. The downstream effects - preceding the cell death - of the disruptions of the bacterial membranes upon the intercalation of these antibiotics are unknown. By screening a set of E. coli membrane protein knockouts, three membrane transporters were shown to mediate the growth-inhibitory effects of colistin. This was corroborated with growth assays on gain-of-function strains, cytotoxic assays and in vivo infections in an invertebrate animal model. This is first-time evidence that the disruption caused to membrane proteins, such as the chloride channel ClcB, the sugar transport system component PtsI and the hypothetical Glutamate:GABA antiporter YcaM, is part of the cytotoxic pathway that follows or is concomitant to the electrostatic intercalations of polymyxins with the Gram-negative bacteria membrane. ### Competing Interest Statement The authors have declared no competing interest.
www.biorxiv.org
Douglas Kell
@dbkell.bsky.social
· Jun 14
‘I could hear the Camerons sniggering at us’ – Sarah Vine’s How Not to Be a Political Wife, digested by John Crace
Michael Gove’s ex on her compassionate pieces for the Daily Mail, struggling to survive on an MP’s salary, doing Sam Cam’s ironing and becoming a laughing stock after Brexit
www.theguardian.com
Reposted by Douglas Kell
Reposted by Douglas Kell
Reposted by Douglas Kell
Reposted by Douglas Kell