Chilaiditi's sign is the presence of pseudopneumoperitoneum caused by colonic distension and interposition with the liver on radiographic films. Most patients with Chilaiditi's sign are asymptomatic. Chilaiditi's syndrome is defined as the development of abdominal pain or symptoms of bowel obstruction along with the presence of Chilaiditi's sign.
View Article and Find Full Text PDFBackground: 20-30% of patients with asthma have neutrophilic airway inflammation and reduced responsiveness to steroid therapy. They often have chronic airway bacterial colonisation and Haemophilus influenzae is one of the most commonly isolated bacteria. The relationship between chronic airway colonisation and the development of steroid-resistant neutrophilic asthma is unclear.
View Article and Find Full Text PDFA subset of patients with stable asthma has prominent neutrophilic and reduced eosinophilic inflammation, which is associated with attenuated airways hyper-responsiveness (AHR). Haemophilus influenzae has been isolated from the airways of neutrophilic asthmatics; however, the nature of the association between infection and the development of neutrophilic asthma is not understood. Our aim was to investigate the effects of H.
View Article and Find Full Text PDFChronic obstructive pulmonary disease (COPD) a term based on the demonstration of irreversible airways obstruction, introduced to unify a range of chronic progressive diseases of the airways consequent upon inhalation of toxins. While disease is initiated and progressed by inhaled toxins, an additional pathway of damage has emerged, with particular relevance to acute exacerbations. Exacerbations of disease due to an increase in the level of intrabronchial inflammation have taken on a new significance as their role in determining both acute and chronic outcomes is better understood.
View Article and Find Full Text PDFBackground: Acute exacerbations of COPD reflect in part an inappropriate host response to abnormal bacterial colonization. Orally administered inactivated nontypeable Haemophilus influenzae (NTHi) can drive a specific T-cell response that by promoting intrabronchial phagocytosis down-regulates bronchus inflammation.
Methods: Subjects with recurrent exacerbations of COPD were studied in a randomized, multicenter, double-blind, placebo-controlled trial, to test efficacy of an NTHi oral immunotherapeutic (HI-164OV).
The Mucosal Immunology Special Interest Group (SIG-MI) of the Australasian Society of Immunology was formed 14 years ago and has run regular symposia and workshops in conjunction with the Australasian Society of Immunology since that time. In December 2007 the Mucosal Immunology Special Interest Group held a 1-day satellite workshop in conjunction with the annual Australasian Society of Immunology scientific meeting in Sydney to celebrate the decade since hosting the 9th International Congress of Mucosal Immunology (9-ICMI) in 1997, which was also held in Sydney. The meeting that was attended by 65 delegates focussed on 4 session themes: reproductive immunology, respiratory immunology, mucosal immunology of the gastrointestinal tract and mucosal vaccines.
View Article and Find Full Text PDFObjective: To determine the prevalence and content of policies, standardised order forms (SOFs) and patient information leaflets (PILs) pertaining to "not-for-resuscitation" (NFR) orders in Australian public hospitals.
Design And Setting: Cross-sectional postal survey conducted across Australia from August to December 2005, using a one-page questionnaire.
Participants: Directors of Medical, Nursing or Clinical Services of all public hospitals in Australia with 60 or more beds, excluding psychiatric, military and private hospitals.
Polarized immune response to Helicobacter pylori and induction of chronic inflammation may increase the risk of gastric atrophy and adenocarcinoma. We studied the association of the response of IgG1 and IgG2 antibodies to H. pylori with grade of gastric chronic inflammation and atrophy in a population with a high prevalence of H.
View Article and Find Full Text PDFThis study examines the safety and immunogenicity of an oral, whole-cell Pseudomonas aeruginosa vaccine administered to healthy volunteers. Thirty subjects received an oral dose of Pseudostat in two timed, measured doses with serological follow-up to 56 days postvaccination. Following vaccination, several individuals were identified as antibody responders for all three immunoglobulin (Ig) isotypes tested, specifically against whole-cell P.
View Article and Find Full Text PDFJ Gastroenterol Hepatol
September 2005
Background: Epidemiological studies have demonstrated strong links between Helicobacter pylori infection and gastric adenocarcinoma. Recent studies suggest that cell-mediated immunity influences the outcome of infection, including the development of gastric adenocarcinoma. The T-cell response can be characterized in terms of the secreted cytokine profile, which in turn influences the B-cell response including the balance of IgG subclass antibody.
View Article and Find Full Text PDFPseudomonas aeruginosa is an opportunistic Gram-negative pathogen, which causes serious debilitating infections in patients with compromised lung function. The mechanism by which P. aeruginosa is cleared from the lung is not fully defined, although our previous studies have established a role for cellular immunity in protection against P.
View Article and Find Full Text PDFPseudomonas aeruginosa is an opportunistic bacterial pathogen that can cause fatal acute lung infections in critically ill individuals. Lung damage due to chronic infections in cystic fibrosis sufferers is the major cause of morbidity and mortality in this group. The bacterium produces various immunomodulatory products that enable it to survive in the lung.
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