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  • 1
    Electronic Resource
    Electronic Resource
    Features and severity of occupational asthma upon diagnosis: an Italian multicentric case review (2002)
    Oxford, UK : Blackwell Science, Ltd
    Allergy 57 (2002), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background. The severity of occupational asthma (OA) at the time of diagnosis is not known. In this study we aimed to evaluate some features of the disease at the time of diagnosis, particularly looking at severity and treatment before diagnosis. Methods: Medical records of subjects (n = 197) who had received a diagnosis of OA in six specialized centres of Northern and Central Italy in the period 1992–97 were reviewed. The severity of the disease at the time of diagnosis was determined on the basis of symptoms, peak expiratory flow (PEF, percentage predicted), forced expiratory volume in one second (FEV1, percentage predicted), and PEF variability, following the criteria of the National Institutes of Health and World Health Organizaton (NIH/WHO) guidelines on asthma. Medications used in the month before diagnosis were recorded. Results: The most common etiological agents were isocyanates (41.6%), flours (19.8%), woods (9.7%) and natural rubber latex (7.6%). The level of asthma severity (AS) was mild intermittent in 23.9% patients, mild persistent in 28.9%, moderate in 41.6%, and severe in 5.6%. Asthma severity was positively associated with current or previous smoking (P 〈 0.05), and was not related to atopy and current exposure. A relationship with bronchial reactivity to methacholine was shown in subjects at work. Treatment before diagnosis was consistent with the NIH/WHO guidelines in only 13.2% patients, whereas 75.6% were undertreated and 11.2% were overtreated. Conclusions: In this study we found that the majority of patients had mild asthma at the time of diagnosis and that cigarette smoking was associated with a greater severity. Moreover, the majority of patients were undertreated before etiological diagnosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1398-9995.2002.1o3337.x
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of corticosteroid treatment on interleukin-1 and tumour necrosis factor secretion by monocytes from subjects with asthma (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 22 (1992), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Peripheral blood monocytes (PBM) may be activated in asthmatic patients, a condition usually reverted by corticosteroid (CS) treatment. In the present research we have evaluated the spontaneous or lipopolysaccharide (LPS)-induced production of interleukin 1 (IL-1) and tumour necrosis factor (TNF) by PBM obtained from 14 asthmatic subjects during an asthmatic attack and after 1 week of CS treatment. The control group included 20 healthy volunteers. PBM obtained during severe asthma showed a pattern of IL-1 and TNF secretion similar to that of normal subjects. After CS treatment, IL-1 levels did not change significantly in comparison to baseline values, while LPS-induced TNF production was apparently related to the degree of airway obstruction after CS treatment. In fact, TNF production by PBM from CS-responsive subjects was significantly decreased in comparison to the levels determined before CS treatment, while PBM from CS-resistant subjects produced the same cytokine levels regardless of CS treatment. The present study suggests that the determination of LPS-induced TNF secretion by PBM could be used to confirm the effectiveness of CS treatment in asthma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1992.tb03097.x
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  • 3
    Electronic Resource
    Electronic Resource
    Epidemiology of occupational rhinitis: prevalence, aetiology and determinants (2000)
    Oxford, UK : Blackwell Science, Ltd
    Clinical & experimental allergy 30 (2000), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2222.2000.00946.x
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  • 4
    Electronic Resource
    Electronic Resource
    Recurrent nocturnal asthma due to tolylene di-isocyanate: a case report (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 8 (1978), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In a carpenter with a history of nocturnal dyspnoea, a bronchial provocation test with a tolylene diisocyanate (TDI) activator elicited a non-immediate asthmatic reaction, followed by recurrent nocturnal asthma for five subsequent nights. Subsequently, the study of the circadian rhythm of airflow, registered during work, confirmed the presence of recurrent nocturnal asthma of occupational origin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1978.tb00464.x
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  • 5
    Electronic Resource
    Electronic Resource
    Prevalence of occupational allergy due to live fish bait (2003)
    Oxford, UK : Blackwell Science Ltd
    Clinical & experimental allergy 33 (2003), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Larvae of insects and worms, used as live fish bait (LFB), are a common source of allergy in anglers and occupationally exposed workers, but the prevalence and predictors have not yet been investigated.Objective This study assessed the prevalence and associated factors of occupational allergy in workers exposed to LFB.Methods We assessed the prevalence of sensitization to LFB and work-related symptoms (WRS) in 76 workers occupationally exposed to it. All workers completed a case history questionnaire and underwent skin prick tests (SPT) for common aeroallergens and bluebottle (Calliphora vomitoria), bee moth (Galleria mellonella), mealworm (Tenebrio molitor), and gusano rojo (Cilecomadia moorei). Specific IgE were tested in 64 subjects. Two-thirds of the workers had a high level of LFB exposure.Results Sensitization to LFB was found in 24 workers (31.6%). Seven subjects (9.2%) reported WRS (asthma in 3, rhinoconjunctivitis in 5, and contact urticaria in 1), and 5 were positive for SPT and serum IgE to one or more LFB extracts. One was also exposed to LFB while fishing. Sensitization to LFB extracts and WRS were strongly associated (Odds Ratio = 6.6, P 〈 0.05). The 7 subjects with WRS had been exposed longer than asymptomatic subjects with positive skin tests to LFB (P 〈 0.05). No differences in sex, age, smoking habit, duration or level of exposure, and atopy were detected in symptomatic or in sensitized subjects, compared with normal workers.Conclusion Sensitization to LFB and WRS are relatively frequent in occupationally exposed workers. No associated factors of occupational allergy to LFB could be detected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2222.2003.01641.x
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  • 6
    Electronic Resource
    Electronic Resource
    Allergic rhinitis in children: effects of flunisolide and disodium cromoglycate on nasal eosinophil cationic protein (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 27 (1997), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Eosinophil cationic protein (ECP) is one of the major, cytotoxic molecules produced by eosinophils, which can be used as a marker of allergic inflammation.Objective In this placebo-controlled study we measured nasal and serum ECP levels to verify their possible role in monitoring the efficacy of anti-inflammatory therapy in allergic chronic rhinitis in 38 children aged from 4 to 14 yr, allergic to house dust mites.Method Nasal ECP, by the method of direct incubation on nasal mucosa, and serum ECP were determined before and after 3 weeks of treatment with flunisolide nasal spray 50 μg twice/daily (13 cases, Group 1), disodium cromoglycate (DSCG) 10.4mg three times/day (15 cases, Group 2) and placebo (10 cases, Group 3). The effectiveness of therapy was evaluated clinically and correlated to serum and nasal ECP values.Results Before treatment no significant difference emerged in the clinical scores of the three groups of patients. Before and after treatment serum ECP levels were not statistically different from normal controls. Before treatment nasal ECP was significantly higher in all patients compared with controls (P 〈 0.001). Nasal ECP decreased significantly in flunisolide-treated patients (P 〈 0.01) (before therapy: median 111 μg/L, range from 33.6 to 200 μg/L; after therapy: median 36.8 μg/L, range from 2.6 to 196 μg/D, but not in DSCG-treated patients, (before therapy: median 66.2 μg/L, range from 32.3 to 200 μg/L; after therapy: median 60.4 μg/L, range from 7.9 to l44 μg/L). No significant variation was present in the placebo group. Clinical improvement was statistically significant after flunisolide therapy (P 〈 0.05), less evident after DSCG (P = 0.06).Conclusion Serum ECP in chronic allergic rhinitis has been shown to be not useful in monitoring allergic inflammation, but nasal ECP, determined by mucosal incubation, may be used to evaluate the activity of eosinophils and monitor the anti-inflammatory efficacy of therapy in chronic rhinitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1997.tb00705.x
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