ArticleClinical and experimental immunology1995
Changes in cytokine and nitric oxide secretion by rat alveolar macrophages after oral administration of bacterial extracts.
Article in Clinical and experimental immunology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 15 citations in OpenAlex.
- Viral infections and wheezing-asthma inception in childhood: is there a role for immunomodulation by oral bacterial lysates?Clinical and translational allergy · 2020Review
- OM85-BV induced the productions of IL-1β, IL-6, and TNF-α via TLR4- and TLR2-mediated ERK1/2/NF-κB pathway in RAW264.7 cells.Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research · 2014Article
- Intranasal immunization with a colloid-formulated bacterial extract induces an acute inflammatory response in the lungs and elicits specific immune responses.Infection and immunity · 2004Article
- Prospective, randomized comparison of OM-85 BV and a prophylactic antibiotic in children with recurrent infections and immunoglobulin A and/or G subclass deficiency.Current therapeutic research, clinical and experimental · 2003Article
- Selective enhancement of systemic Th1 immunity in immunologically immature rats with an orally administered bacterial extract.Infection and immunity · 2001Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Oral administration of the bacterial immunomodulator Broncho-Vaxom (OM-85), a lysate of eight bacteria strains commonly causing respiratory disease, has been shown to enhance the host defence of the respiratory tract. In this study we examined the effect of orally administered (in vivo) OM-85 on stimulus-induced cytokine and nitric oxide secretion by rat alveolar macrophages in vitro. The results show that alveolar macrophages isolated from OM-85-treated rats secreted significantly more nitric oxide, tumour necrosis factor-alpha (TNF-alpha) and IL-1 beta upon in vitro stimulation with lipopolysaccharide (LPS), whereas, in contrast, LPS-induced IL-6 secretion was significantly lower. The observed effects of in vivo OM-85 treatment on stimulus-induced cytokine secretion in vitro are not due to a direct effect of OM-85 on the cells, because in vitro incubation of alveolar macrophages with OM-85 did not result in altered activity, nor did direct intratracheal instillation of OM-85 in the lungs of rats result in altered alveolar macrophage activity in vitro. It is hypothesized that oral administration of OM-85 leads to priming of alveolar macrophages in such a way that immune responses are non-specifically enhanced upon stimulation. The therapeutic action of OM-85 may therefore result from an enhanced clearance of infectious bacteria from the respiratory tract due to increased alveolar macrophage activity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.