Abstract:
BACKGROUND:Glucocorticosteroids are effective in the treatment of allergic rhinitis, a disease characterized by a variety of symptoms, e.g. rhinorrhea and itching. The time course of symptomatic relief for allergic rhinitis by steroids has not been examined in detail to date, although the onset of steroid action is one of the main discriminations between genomic and nongenomic actions of steroids. We therefore investigated the time course of subjective and objective measures of nasal affection after steroid administration in patients with allergic rhinitis following specific allergen challenge. METHODS:Six female and 18 male volunteers (median age 26 years) with a history of allergic rhinitis but currently free of symptoms were included in this randomized, placebo-controlled, double-blind, three-period crossover study. A single dose of either betamethasone (60 mg), methylprednisolone (400 mg) or placebo was given intravenously, 5 min after intranasal allergen provocation. After 10, 20, 60, 150 and 240 min, nasal itching and nasal obstruction were assessed using a standardized visual analogue scale. In addition, nasal airflow was measured by anterior rhinomanometry. RESULTS:Nasal itching was markedly reduced following either of the two steroids within 10 min after administration of study drug. Itching was depressed by 38% following betamethasone (P<0.05) and by 18% following methylprednisolone (P=0.07) compared with placebo. Nasal airflow and nasal obstruction were not significantly altered by steroids during the first 2 h of the study. However, after 150 min, nasal airflow was 21% rsp. 19% higher after methylprednisolone and betamethasone (P<0.05) compared with placebo. After 240 min, nasal airflow was increased by 20% following betamethasone (P<0.05) and by 19% following methylprednisolone. Nasal obstruction was also beneficially affected by both steroids 150 and 240 min after administration compared with placebo (P<0.05 for both time points following betamethasone). CONCLUSION:This study for the first time shows rapid in vivo effects of external glucocorticosteroids in humans. Itching, a pathophysiologically complex sensation, is favourably influenced by steroids within 10 min, therefore presumably via nongenomic mechanisms. Though no detailed mechanisms can be derived from this study, steroid interaction with receptors in the central nervous system may play an important role in mediating this effect.
journal_name
Eur J Clin Investjournal_title
European journal of clinical investigationauthors
Tillmann HC,Stuck BA,Feuring M,Rossol-Haseroth K,Tran BM,Lösel R,Schmidt BM,Hörmann K,Wehling M,Schultz Adoi
10.1111/j.1365-2362.2004.01293.xkeywords:
subject
Has Abstractpub_date
2004-01-01 00:00:00pages
67-73issue
1eissn
0014-2972issn
1365-2362pii
1293journal_volume
34pub_type
临床试验,杂志文章,随机对照试验abstract::Tightly co-ordinated control of both insulin action and secretion is required in order to maintain glucose homeostasis. Gene knockout experiments have helped to define key signalling molecules that affect insulin action, including insulin and insulin-like growth factor-1 (IGF-1) receptors, insulin receptor substrate (...
journal_title:European journal of clinical investigation
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abstract:BACKGROUND/AIMS:Conflicting observations exist concerning the role of nuclear factor kappa B (NFjB) in alcoholic liver disease (ALD) in animal models. To date no studies have examined this aspect in human liver tissue. We here assessed cytokines and toll-like receptors (TLRs) expressions in conjunction with NFkappaB ac...
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journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1982-08-01 00:00:00
abstract:BACKGROUND:Glomerulonephritis clusters in families. However, infections are common inducers of glomerulonephritis and may also cluster in families. Studies of adoptees and their biological and adoptive parents may disentangle genetic from environmental causes of familial clustering. This is the first adoption study aim...
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
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更新日期:2021-01-01 00:00:00