Tobias Strunk

ORCID: 0000-0001-7079-2339
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About
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Research Areas
  • Neonatal and Maternal Infections
  • Neonatal Respiratory Health Research
  • Preterm Birth and Chorioamnionitis
  • Sepsis Diagnosis and Treatment
  • Infant Nutrition and Health
  • Immune Response and Inflammation
  • Neonatal and fetal brain pathology
  • Antibiotics Pharmacokinetics and Efficacy
  • Streptococcal Infections and Treatments
  • Pharmaceutical studies and practices
  • Clinical Nutrition and Gastroenterology
  • Infant Development and Preterm Care
  • Coconut Research and Applications
  • Pediatric health and respiratory diseases
  • Neonatal skin health care
  • Delphi Technique in Research
  • Congenital Diaphragmatic Hernia Studies
  • Respiratory viral infections research
  • Global Maternal and Child Health
  • Infant Health and Development
  • Antimicrobial Resistance in Staphylococcus
  • Antimicrobial Peptides and Activities
  • Inflammation biomarkers and pathways
  • Emergency and Acute Care Studies
  • Erythropoietin and Anemia Treatment

The Kids Research Institute Australia
2020-2025

King Edward Memorial Hospital
2016-2025

The University of Western Australia
2016-2025

Office of Adolescent Health
2024

St John of God Subiaco Hospital
2023

Okayama University
2023

Government of Western Australia Department of Health
2020-2022

North Metropolitan Health Service
2022

Murdoch University
2021

Princess Margaret Hospital for Children
2008-2019

Abstract There is a paucity of data on the effect preterm birth immunological composition breast milk throughout different stages lactation. We aimed to characterise effects levels immune factors in during 1st month postpartum, determine whether deficient antimicrobial factors. Colostrum (days 2–5 postpartum), transitional 8–12) and mature 26–30) were collected from mothers extremely (<28 weeks gestation, n 15), very (28–<32 moderately (32–<37 15) term infants (37–41 15). Total...

10.1017/s0007114516000234 article EN British Journal Of Nutrition 2016-02-19

Background Extremely preterm infants are highly susceptible to bacterial infections but breast milk provides some protection. It is unknown if leukocyte numbers and subsets in differ between term milk. This study serially characterised populations of mothers using multicolour flow cytometry methods for extended differential counts blood. Methods Sixty extremely (<28 weeks gestational age), very (28–31 wk), moderately (32–36 as well (37–41 wk) were recruited. Colostrum (d2–5), transitional...

10.1371/journal.pone.0135580 article EN cc-by PLoS ONE 2015-08-19

Appropriate use of antibiotics is life-saving in neonatal early-onset sepsis (EOS), but overuse associated with antimicrobial resistance and long-term adverse outcomes. Large international studies quantifying early-life antibiotic exposure along EOS incidence are needed to provide a basis for future interventions aimed at safely reducing exposure.To compare early postnatal antibiotics, EOS, mortality among different networks high-income countries.This retrospective, cross-sectional study...

10.1001/jamanetworkopen.2022.43691 article EN cc-by-nc-nd JAMA Network Open 2022-11-23

SUMMARY The inflammatory response plays a major role in the induction of several neonatal diseases. We hypothesize that an imbalance between pro- and anti-inflammatory is crucial for previously shown enhanced production proinflammatory cytokines term preterm infants during infection. To test this hypothesis, we compared capacity to produce main IL-10 TGF-β infants, adults at different levels synthesis by quantitative real time reverse-transcribed PCR, flow cytometry, as well enzyme-linked...

10.1111/j.1365-2249.2004.02313.x article EN Clinical & Experimental Immunology 2003-12-16

Summary The functional differentiation of immune cells at early age plays a central role in physiology, e.g. for the sufficient eradication pathogens. However, imbalances effector cell responses may also have an impact pathophysiology childhood diseases such as atopy and autoimmune disorders. As information on infancy is scarce, we conducted observational, cross-sectional study healthy newborns (n = 18), infants young children 54) aged 1–96 months adult controls 19) to assess cytokine mRNA...

10.1111/j.1365-2249.2005.02928.x article EN Clinical & Experimental Immunology 2005-09-11

Background: Histologic chorioamnionitis (HCA) is implicated in the onset of preterm labor and delivery. Chorioamnionitis a known risk factor for early-onset sepsis may modulate postnatal immunity. Preterm infants are at greatly increased late-onset (LOS), particularly with coagulase-negative staphylococci (CoNS), but impact HCA on LOS unknown. Methods: Eight hundred thirty-eight born &amp;lt;30 weeks gestational age single tertiary center were included. examination placenta extraplacental...

10.1542/peds.2010-3493 article EN PEDIATRICS 2011-12-13

Objective We investigated the levels and antimicrobial activity of proteins peptides (AMPs) in breast milk consumed by preterm infants, whether deficiencies these factors were associated with late-onset neonatal sepsis (LOS), a bacterial infection that frequently occurs infants period. Study design Breast from mothers (≤32 weeks gestation) was collected on days 7 (n = 88) 21 77) postpartum. Concentrations lactoferrin, LL-37, beta-defensins 1 2, alpha-defensin 5 measured enzyme-linked...

10.1371/journal.pone.0117038 article EN cc-by PLoS ONE 2015-02-02

&lt;b&gt;&lt;i&gt;Background:&lt;/i&gt;&lt;/b&gt; Early-onset sepsis (EOS) is a potentially fatal condition that affects about 0.3–0.8/1,000 infants born at ≥35 weeks’ gestation in developed countries. Current EOS management algorithms result 8–15% of receiving antibiotics for suspected sepsis. The Neonatal Sepsis Calculator provides evidence-based estimates individual risk, but data on its clinical application limited. &lt;b&gt;&lt;i&gt;Objectives:&lt;/i&gt;&lt;/b&gt; To evaluate the...

10.1159/000487298 article EN Neonatology 2018-01-01

Background Staphylococcus epidermidis (SE) is a nosocomial pathogen that causes catheter-associated bacteremia in the immunocompromised, including those at extremes of age, motivating study host clearance mechanisms. SE-derived soluble components engage TLR2; but additional signaling pathways have also been implicated, and TLR2 can play complex, times detrimental, roles defense against other Staphylococcal spp. The role responses primary blood leukocytes to live SE bacteremia, most common...

10.1371/journal.pone.0010111 article EN cc-by PLoS ONE 2010-04-09

ABSTRACT Group B streptococcus (GBS) is an important cause of early- and late-onset sepsis in the newborn. Preterm infants have markedly increased susceptibility worse outcomes, but their immunological responses to GBS are poorly defined. We compared mononuclear cell whole-blood cytokine heat-killed (HKGBS) preterm (gestational age [GA], 26 33 weeks), term infants, healthy adults. investigated kinetics source induced cytokines quantified HKGBS phagocytosis. HKGBS-induced tumor necrosis...

10.1128/iai.00535-10 article EN Infection and Immunity 2011-02-08
Kristy Robledo William O. Tarnow‐Mordi Ingrid Rieger Preeti K. Suresh Andrew Martin and 95 more Carbo Yeung Alpana Ghadge Helen G. Liley David A Osborn Jonathan Morris Wendy Hague Martin Kluckow Kei Lui Roger F. Soll Melinda Cruz Anthony Keech Adrienne Kirby John Simes Himanshu Popat Shelley Reid Adrienne Gordon Koert de Waal Ian Wright Anne Wright Jane Buchan Michelle Stubbs John P. Newnham Karen Simmer Cherry Young Diane Loh Kenneth Yuh Yen Kok Andy Gill Tobias Strunk Michele Jeffery Yan Chen Scott Morris Sanjay Sinhal Kathryn Cornthwaite Susan P. Walker Andrew M. Watkins Clare L. Collins James Holberton Elizabeth J Noble Arvind Sehgal Emma Yeomans Kristy Elsayed Mohamed E. Abdel‐Latif Margaret Broom Guan Koh Annemarie Lawrence Glenn Gardener Jane Fox David Cartwright Pieter Koorts M. A. Pritchard Lisa McKeown Anne Lainchbury Antonia Shand Joanna Michalowski John Smyth Srinivas Bolisetty Alan Adno Gaksoo Lee Anna Lene Seidler Lisa Askie Katie Groom Deborah A Eaglen Ella C Baker Harshad Patel Natalie Wilkes Joanna Gullam Nicola Austin Dianne E Leishman Phil Weston Nicola White Nadia A Cooper Roland Broadbent Michael L. Stitely Pauline Dawson Walid El‐Naggar Marlene Furlong Tara Hatfield Danièle De Luca Alexandra Benachi Emmanuelle Letamendia-Richard Guillaume Escourrou V. Dell’Orto David G. Sweet Muriel Millar Shilpa Shah Lumaan Sheikh Shabina Ariff Erin Morris Leslie Young Shannon K Evans Michael A. Belfort Kjersti M. Aagaard Mohan Pammi George T. Mandy Manisha Gandhi

10.1016/s2352-4642(21)00373-4 article EN The Lancet Child & Adolescent Health 2021-12-08
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