R A Welch
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Explore the profile of R A Welch including associated specialties, affiliations and a list of published articles.
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99
Citations
4027
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Recent Articles
1.
Battaglioli E, Goh K, Atruktsang T, Schwartz K, Schembri M, Welch R
mBio
. 2018 Aug;
9(4).
PMID: 30087170
Uropathogenic (UPEC) is the most common etiologic agent of uncomplicated urinary tract infection (UTI). An important mechanism of gene regulation in UPEC is phase variation that involves inversion of a...
2.
Battaglioli E, Baisa G, Weeks A, Schroll R, Hryckowian A, Welch R
Appl Environ Microbiol
. 2011 Jul;
77(18):6630-5.
PMID: 21784916
The traditional genetic procedure for random or site-specific mutagenesis in Escherichia coli K-12 involves mutagenesis, isolation of mutants, and transduction of the mutation into a clean genetic background. The transduction...
3.
Welch R, Burland V, Plunkett 3rd G, Redford P, Roesch P, Rasko D, et al.
Proc Natl Acad Sci U S A
. 2002 Dec;
99(26):17020-4.
PMID: 12471157
We present the complete genome sequence of uropathogenic Escherichia coli, strain CFT073. A three-way genome comparison of the CFT073, enterohemorrhagic E. coli EDL933, and laboratory strain MG1655 reveals that, amazingly,...
4.
Redford P, Welch R
Curr Top Microbiol Immunol
. 2002 May;
264(1):15-30.
PMID: 12014176
No abstract available.
5.
Torres A, Redford P, Welch R, Payne S
Infect Immun
. 2001 Sep;
69(10):6179-85.
PMID: 11553558
The uropathogenic Escherichia coli strain CFT073 has multiple iron acquisition systems, including heme and siderophore transporters. A tonB mutant derivative of CFT073 failed to use heme as an iron source...
6.
Welch R
Curr Top Microbiol Immunol
. 2001 Jun;
257:85-111.
PMID: 11417123
It can be agreed that RTX toxins contribute to the pathogenesis of different diseases by causing dysfunction of the general cellular reactions of the immune response. The suggestion that RTX...
7.
Blessed W, Lacoste H, Welch R
Am J Obstet Gynecol
. 2001 Jun;
184(7):1340-2; discussion 1342-4.
PMID: 11408850
Objective: Our purpose was to compare midtrimester amniocentesis-related fetal loss rates between obstetrician-gynecologists and perinatologists. Study Design: This cohort study analyzes 1384 midtrimester amniocenteses from January 1, 1996, to December...
8.
Perna N, Plunkett 3rd G, Burland V, Mau B, Glasner J, Rose D, et al.
Nature
. 2001 Feb;
409(6819):529-33.
PMID: 11206551
The bacterium Escherichia coli O157:H7 is a worldwide threat to public health and has been implicated in many outbreaks of haemorrhagic colitis, some of which included fatalities caused by haemolytic...
9.
Lim K, Walker C, Guo L, Pellett S, Shabanowitz J, Hunt D, et al.
J Biol Chem
. 2000 Sep;
275(47):36698-702.
PMID: 10978310
alpha-Hemolysin (HlyA) is a secreted protein virulence factor observed in certain uropathogenic strains of Escherichia coli. The active, mature form of HlyA is produced by posttranslational modification of the protoxin...
10.
Moxley R, Berberov E, Francis D, Xing J, Moayeri M, Welch R, et al.
Infect Immun
. 1998 Sep;
66(10):5031-5.
PMID: 9746614
Pigs infected with hemolytic F4(+) strains of enterotoxigenic Escherichia coli often develop septicemia secondary to intestinal infection. We tested the hypothesis that inactivation of hemolysin would reduce the ability of...