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Research
Plasma secretory phospholipase A2 as an early marker for late-onset sepsis in preterm infants—a pilot studyPreterm infants are particularly susceptible to bacterial late-onset sepsis (LOS). Diagnosis by blood culture and inflammatory markers have sub-optimal sensitivity and specificity and prolonged reporting times. There is an urgent need for more rapid, accurate adjunctive diagnostics in LOS to improve management and minimise antibiotic exposure.
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Combination of clinical symptoms and blood biomarkers can improve discrimination between bacterial or viral community-acquired pneumonia in childrenCombining elevated CRP with the presence or absence of clinical signs/ symptoms differentiates definite bacterial from presumed viral pneumonia better than CRP alone
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Role of viral and bacterial pathogens in causing pneumonia among Western Australian children: A case-control study protocolPneumonia is the leading cause of childhood morbidity and mortality globally.
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Australian Aboriginal children with otitis media have reduced antibody titers to specific nontypeable Haemophilus influenzae vaccine antigensdecreased serum IgG responses to NTHi outer membrane proteins may contribute to the development of chronic and severe OM in Australian Aboriginal children
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Pathogens on the rise: is impaired immunity the cause of chronic ear and chest infections?Ruth Elke Peter Thornton Seppanen Richmond RT ES PC PhD BSc PhD MBBS MRCP(UK) FRACP Co-head, Bacterial Respiratory Infectious Disease Group (BRIDG)
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PCV10 elicits Protein D IgG responses in Papua New Guinean children but has no impact on NTHi carriage in the first two years of lifeNasopharyngeal colonisation with nontypeable Haemophilus influenzae (NTHi) is associated with development of infections including pneumonia and otitis media. The 10-valent pneumococcal conjugate vaccine (PCV10) uses NTHi Protein D (PD) as a carrier. Papua New Guinean children have exceptionally early and dense NTHi carriage, and high rates of NTHi-associated disease.
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Optimising a 6-plex tetanus-diphtheria-pertussis fluorescent bead-based immunoassaySmall volume assays are required for large-scale research studies and in particular paediatric trials, where multiple measures are required from a single sample. Fluorescent bead-based technology (Bioplex/Luminex) allows high through-put and simultaneous quantification of multiple analytes in a single test. This technology uses sets of microspheres, each with a unique spectral address that can be coated with a different antigen of interest.
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High concentrations of middle ear antimicrobial peptides and proteins are associated with detection of middle ear pathogens in children with recurrent acute otitis mediaElevated antimicrobial proteins and peptides and cytokines in middle ear effusion are a marker of inflammation and bacterial persistence
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Bacillus licheniformis in geogenic dust induces inflammation in respiratory epitheliumWe have previously demonstrated that mice exposed to geogenic dust PM10 experienced an exacerbation of inflammatory responses to influenza A virus.
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Role of viral and bacterial pathogens in causing pneumonia among Western Australian children: A case-control study protocolWe aim to determine the contribute of bacteria and virus to childhood CAP to inform further development of effective strategies.