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  • 1
    Electronic Resource
    Electronic Resource
    The Variability of Immunoglobulins and Albumin in Salivary Secretions of Children (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 33 (1991), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The variation of concentrations of immunoglobulins and albumin in consecutive daily collections of saliva was studied m 33 infants, aged 6 months to 5 years, for periods ranging from 16 to 26 days. The concentration and the within-child variability of IgA and albumin and the detection of IgG and IgM in saliva increased with age. Between-child variances were greater than the within-child variances by a factor of 2.8 for log (IgA) and 1.3 for log (albumin). The geometric mean IgA levels were consistently higher and IgG was detected more frequency during upper respiratory tract infections compared with periods of non-infection. There were no changes in albumin levels between infection and non-infection periods, suggesting a local immune response rather than serum leakage. There were significant within-child correlations (autocorrelations) between levels of IgA in saliva collected on consecutive days and samples collected up to 3 days apart. The autocorrelations between levels of albumin were significant for samples collected up to 2 days apart. The autocorrelation for IgA was significantly greater during infection periods compared with non-infection periods FOR samples collected on consecutive days.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1991.tb02523.x
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  • 2
    Electronic Resource
    Electronic Resource
    The Development of IgA-Specific Antibodies to Escherichia coli O Antigen in Children (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 26 (1987), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: One hundred and sixty-five infants were studied longitudinally from birth to 5 years of age. One hundred and twenty-three school-age children and 27 adults were examined cross-sectionally. Total salivary IgA levels and IgA antibodies against Escherichia coli O antigens were measured. Total IgA levels were low (〈20 mg/l) from birth to 4 years of age. At 5 years of age there was a dramatic increase in the total IgA level (geometric mean = 100.7 mg/l), after which the levels fell to values similar to those observed in adults (adult geometric mean = 53.2 mg/l). Low levels of IgA-specific E. coli antibodies were observed for the first 4 years of life (〈1.0 ELISA units). There was a gradual increase in specific antibodies between 5 and 9 years of age (geometric men at 9 years=4.66 ELISA units) to levels similar to those observed in adults (adult geometric mean=8.20 ELISA units). It is suggested that the patterns of development for these variables reflect a balance between antigenic exposure and immune control mechanisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1987.tb02299.x
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  • 3
    Electronic Resource
    Electronic Resource
    IgD in Infant Saliva (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 26 (1987), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The ontogeny patterns of IgD in saliva were studied prospectively in 27 healthy full-term infants. The concentrations and the proportion of samples with detectable levels of IgD were higher near birth. After 6 months of age IgD was rarely detected in saliva. There was an inverse assoeiation between the detection of IgD and IgA in saliva. There were no correlations between IgD and IgG or albumin. These observations support the theory that IgD synthesis and secretion at mucosal sites reflects a ‘physiological’ deficiency in IgA synthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1987.tb02234.x
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  • 4
    Electronic Resource
    Electronic Resource
    The prevalence of drug use in urban Aboriginal communities (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Addiction 89 (1994), S. 0 
    Details
    ISSN: 1360-0443
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: The use of both licit and illicit drugs has been identified as a major health issue for Australian Aborigines. However, data on the proportion of people who use such drugs is scant. This cross-sectional survey of a randomly selected sample of urban Aboriginal people provides information on the use of the drugs alcohol, tobacco, marijuana, cocaine, heroin as well as petrol sniffing. Overall, a significantly smaller proportion of Aboriginal people were found to be current alcohol drinkers compared to non-Aboriginal Australians. A larger proportion of these drinkers were, however, found to be drinking at levels that were hazardous to their health. A significantly greater proportion of people from the Aboriginal sample were also found to be smokers compared to their non-Aboriginal counterparts. An examination of the use of the illicit substances revealed that a greater proportion reported they had ever used marijuana, compared to the other substances. The findings are discussed in terms of their implications for the health of Aboriginal people.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1360-0443.1994.tb03311.x
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  • 5
    Electronic Resource
    Electronic Resource
    A clinical evaluation in children of the Pharmacia ImmunoCAP system for inhalant allergens (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 26 (1996), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background The Pharmacia ImmunoCAP system (CAP) for assaying serum IgE specific antibodies was evaluated in a clinical setting against skin-prick test (SPT) perfonncd using Dome/Hollister-Steir allergen extracts. The five cotnmon inhalant allergens D. pteronyssinus. D. farinae, mould mix, grass mix and cat epithelium were tested concurrently by both methods in 167 children aged 7.5–12 years. The specific SPT for D. pteronyssinus and D. farinae were also tested against the CAP house dust mite (HDM) mix.Objective The purpose of the study was to determine the sensitivity and specificity of the Pharmacia ImmunoCAP system Tor detecting serum IgE specific antibodies to inhalant allergens in a clinical setting, using the SPT result as the ‘gold standard’.Methods The SPTs were performed using Dome/Hollister-Steir allergen extracts. The serum IgE specific antibodies were quantitated using the radioimmunoassay version of the Pharmacia ImmunoCAP system. A history of allergic disease was assessed using a validated questionnaire.Results SPT gave more positive reactions than CAP with the exception of cat epithelium. The concordance between SPT and CAP results was 91% over all the tests. The concordance with SPT was slightly higher for the specific CAP for D. pteronyssinus and D. farinae (93% and 95% respectively) than for the CAP HDM mix (86% and 90% respectively). There was a higher proportion of positive results for both SPT and CAP in the 115 children defined as having a history of allergic disease. Using SPT defined allergy as the gold standard, the sensitivity of the CAP system was 87% for the two specific house dust mites but was lower for cat epithelium (67%), mould mix (59%) and grass mix (46%). The sensitivity of the CAP system improved for D. pteronyssinus (96%) and the HDM mix (91%) when tested in subjects defined as having a history of allergy associated disease. The specificity of the CAP system showed less variation between allergens and ranged from 90–99%.Conclusion The results of this study of children aged 7.5–12 years demonstrate that, for the inhalent allergens tested, the Pharmacia ImmunoCAP system perfoms well in the setting of known allergic disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1996.tb00596.x
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  • 6
    Electronic Resource
    Electronic Resource
    Airway inflammation in thunderstorm asthma (2002)
    Oxford, UK : Blackwell Science Ltd
    Clinical & experimental allergy 32 (2002), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Epidemics of acute asthma associated with thunderstorms occur intermittently worldwide, though airway inflammation during these acute episodes has not been characterized. The aim of this study was to characterize airway inflammation in thunderstorm asthma.Methods Cases were recruited after presentation to the emergency room with acute asthma immediately following a thunderstorm (n = 6). They were compared to two control groups: a group of atopic asthmatics that had presented with acute asthma to the emergency room prior to the thunderstorm (n = 12), and a second group of corticosteroid naïve asthmatics who presented to the emergency room in the prior 12 months (n = 6). Subjects had spirometry, sputum induction and allergy skin tests acutely and at review 4 weeks later.Results Thunderstorm (TS) cases were more likely to have a history of hay fever and grass pollen allergy, and less likely to be on inhaled corticosteroids (ICS) prior to presentation. Cases and control groups had a similar degree of moderate to severe acute airway obstruction (P = 1.0). TS cases had elevated sputum eosinophils (14.8% of total cell count) compared to controls (1%, 2.6%, P 〈 0.01). TS cases had higher sputum eosinophil cationic protein (ECP; 11 686 ng/mL) compared to controls (1883, 3300, P = 0.02) acutely. TS cases had more cells positive for IL-5 (30%) compared to controls (1, 1.5%, P = 0.02). When adjusted for ICS use, TS cases had a risk ratio for elevated sputum eosinophils of 2.4 (1.23–4.69).Conclusion Thunderstorm asthma is characterized by airway inflammation with IL-5-mediated sputum eosinophilia and eosinophil degranulation. These results are consistent with allergen exposure as the cause of the exacerbation, and are consistent with the thunderstorm-induced grass pollen deluge as the cause of epidemic asthma after thunderstorms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2222.2002.01556.x
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  • 7
    Electronic Resource
    Electronic Resource
    Safety of sputum induction with isotonic saline in adults with acute severe asthma (2001)
    Oxford, UK : Blackwell Science, Ltd
    Clinical & experimental allergy 31 (2001), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Sputum induction is a safe and effective technique to study airway inflammation in stable asthma. However, it has the potential to induce bronchospasm and the safety and efficacy of the technique in acute asthma has not been determined.Objective The objective of this study was to evaluate the safety and efficacy of a protocol to induce sputum using isotonic saline in adults with acute exacerbations of asthma.Methods Adults (n = 47) presenting to the emergency room with acute asthma and an FEV1 〉 1.0 L underwent supervised sputum induction with 0.9% saline delivered by an ultrasonic nebuliser. Induction was ceased if there was a fall of 20% or greater from baseline FEV1.Results Subjects had moderate to severe exacerbations of acute asthma. An adequate sputum sample was obtained in 87% of subjects. Four subjects ceased induction because of symptom distress. There was a fall ≥ 20% in 28% of subjects. Bronchoconstriction was successfully reversed by salbutamol in all subjects. Predictors of significant bronchoconstriction were older age, use of ingested corticosteroids, and a requirement for high-dose nebulized salbutamol for the exacerbation. Maintenance long-acting β2-agonist therapy protected against bronchoconstriction during sputum induction.Conclusions Sputum induction in acute asthma using isotonic saline is highly efficacious in obtaining an adequate sputum sample. There is the potential for significant bronchoconstriction to occur but this can be managed safely with minimal discomfort to subjects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2222.2001.01230.x
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  • 8
    Electronic Resource
    Electronic Resource
    Acquired IgA deficiency (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Pediatric allergy and immunology 5 (1994), S. 0 
    Details
    ISSN: 1399-3038
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: During a prospective study of the ontogeny of the mucosal immune system using saliva, one subject acquired a selective IgA deficiency at 3 years 6 months of age. Prior to this time the infant had normal ontogeny patterns for salivary immunoglobulins and the salivary IgA was confirmed to be dimeric IgA containing secretory component. Two respiratory tract infections at 3 years 4 months and 3 years 5 months were reported prior to the collection of a saliva sample which was deficient in IgA. All subsequent saliva collections remained IgA deficient. Serum and saliva collected at 11 years of age confirmed persistent IgA deficiency. There was a family history of organ-specific autoimmune disease. The prospectively collected data indicate in this subject that the IgA deficiency was not congenital, but was acquired closely associated with two episodes of respiratory tract infections, against a genetic background of disturbed immune regulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3038.1994.tb00231.x
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