Search Results - "Vornhagen, Jay"
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Gut community structure as a risk factor for infection in Klebsiella pneumoniae -colonized patients
Published in mSystems (20-08-2024)“…The primary risk factor for infection with members of the species complex is prior gut colonization, and infection is often caused by the colonizing strain…”
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A systematic analysis of hypermucoviscosity and capsule reveals distinct and overlapping genes that impact Klebsiella pneumoniae fitness
Published in PLoS pathogens (01-03-2021)“…Hypervirulent K. pneumoniae (hvKp) is a distinct pathotype that causes invasive community-acquired infections in healthy individuals. Hypermucoviscosity (hmv)…”
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3
A structured professional development curriculum for postdoctoral fellows leads to recognized knowledge growth
Published in PloS one (22-11-2021)“…Postdoctoral training enables research independence and professional readiness. National reports have emphasized professional development as a critical…”
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4
Lipid analogs reveal features critical for hemolysis and diminish granadaene mediated Group B Streptococcus infection
Published in Nature communications (20-03-2020)“…Although certain microbial lipids are toxins, the structural features important for cytotoxicity remain unknown. Increased functional understanding is…”
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5
The Klebsiella pneumoniae citrate synthase gene, gltA, influences site specific fitness during infection
Published in PLoS pathogens (26-08-2019)“…Klebsiella pneumoniae (Kp), one of the most common causes of healthcare-associated infections, increases patient morbidity, mortality, and hospitalization…”
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Bacterial Hyaluronidase Promotes Ascending GBS Infection and Preterm Birth
Published in mBio (28-06-2016)“…Preterm birth increases the risk of adverse birth outcomes and is the leading cause of neonatal mortality. A significant cause of preterm birth is in utero…”
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Combined comparative genomics and clinical modeling reveals plasmid-encoded genes are independently associated with Klebsiella infection
Published in Nature communications (01-08-2022)“…Members of the Klebsiella pneumoniae species complex frequently colonize the gut and colonization is associated with subsequent infection. To identify genes…”
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8
A plasmid locus associated with Klebsiella clinical infections encodes a microbiome-dependent gut fitness factor
Published in PLoS pathogens (30-04-2021)“…Klebsiella pneumoniae (Kp) is an important cause of healthcare-associated infections, which increases patient morbidity, mortality, and hospitalization costs…”
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Hyaluronidase Impairs Neutrophil Function and Promotes Group B Streptococcus Invasion and Preterm Labor in Nonhuman Primates
Published in mBio (05-01-2021)“…Invasive bacterial infections during pregnancy are a major risk factor for preterm birth, stillbirth, and fetal injury. Group B streptococci (GBS) are…”
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A streptococcal lipid toxin induces membrane permeabilization and pyroptosis leading to fetal injury
Published in EMBO molecular medicine (01-04-2015)“…Group B streptococci (GBS) are Gram‐positive bacteria that cause infections in utero and in newborns. We recently showed that the GBS pigment is hemolytic and…”
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Risk Factors for Klebsiella Infections among Hospitalized Patients with Preexisting Colonization
Published in mSphere (30-06-2021)“…Klebsiella commonly colonizes the intestinal tract of hospitalized patients and is a leading cause of health care-associated infections. Colonization is…”
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12
Coaggregation occurs amongst bacteria within and between biofilms in domestic showerheads
Published in Biofouling (Chur, Switzerland) (01-01-2013)“…Showerheads support the development of multi-species biofilms that can be unsightly, produce malodor, and may harbor pathogens. The outer-surface spray-plates…”
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13
Kinase Inhibitors that Increase the Sensitivity of Methicillin Resistant Staphylococcus aureus to β-Lactam Antibiotics
Published in Pathogens (Basel) (22-10-2015)“…Staphylococcus aureus are Gram-positive bacteria that are the leading cause of recurrent infections in humans that include pneumonia, bacteremia,…”
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14
Mast cell degranulation by a hemolytic lipid toxin decreases GBS colonization and infection
Published in Science advances (17-07-2015)“…Ascending infection of microbes from the lower genital tract into the amniotic cavity increases the risk of preterm birth, stillbirth, and newborn infections…”
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15
Perinatal Group B Streptococcal Infections: Virulence Factors, Immunity, and Prevention Strategies
Published in Trends in microbiology (Regular ed.) (01-11-2017)“…Group B streptococcus (GBS) or Streptococcus agalactiae is a β-hemolytic, Gram-positive bacterium that is a leading cause of neonatal infections. GBS commonly…”
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Fetal brain lesions after subcutaneous inoculation of Zika virus in a pregnant nonhuman primate
Published in Nature medicine (01-11-2016)“…New animal models of Zika virus (ZIKV) infection are imperative to accelerating efforts to treat or prevent disease in humans. Adams Waldorf et al . now report…”
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The Klebsiella pneumoniae ter Operon Enhances Stress Tolerance
Published in Infection and immunity (16-02-2023)“…Healthcare-acquired infections are a leading cause of disease in patients that are hospitalized or in long-term-care facilities. Klebsiella pneumoniae (Kp) is…”
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Diminished Capsule Exacerbates Virulence, Blood–Brain Barrier Penetration, Intracellular Persistence, and Antibiotic Evasion of Hyperhemolytic Group B Streptococci
Published in The Journal of infectious diseases (13-03-2018)“…Hyperhemolytic group B streptococci trade capsule for increased virulence, blood–brain barrier penetration, intracellular persistence, and antibiotic evasion…”
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Congenital Zika virus infection as a silent pathology with loss of neurogenic output in the fetal brain
Published in Nature medicine (01-03-2018)“…Zika virus infection of pregnant nonhuman primates results in the loss of fetal neuronal progenitor cells, even in the absence of overt microcephaly. Zika…”
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The ADP-Heptose Biosynthesis Enzyme GmhB is a Conserved Gram-Negative Bacteremia Fitness Factor
Published in Infection and immunity (21-07-2022)“…Klebsiella pneumoniae is a leading cause of Gram-negative bacteremia, which is a major source of morbidity and mortality worldwide. Gram-negative bacteremia…”
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