Evidence map›Paper›PMID 39493366›Full record

SynthesisInternational journal of chronic obstructive pulmonary disease2024

Impact of N-Acetylcysteine on Mucus Hypersecretion in the Airways: A Systematic Review.

Paola Rogliani, Gian Marco Manzetti, Shima Gholamalishahi, Mario Cazzola, Luigino Calzetta

Abstract readSystematic Review
In one paragraph

Synthesis in International journal of chronic obstructive pulmonary disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Guideline
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Paola RoglianiUnit of Respiratory Medicine, Department of Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy.ORCID 0000-0001-7801-5040
Gian Marco ManzettiUnit of Respiratory Medicine, Department of Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy.ORCID 0000-0002-8265-7959
Shima GholamalishahiUnit of Respiratory Medicine, Department of Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy.
Mario CazzolaUnit of Respiratory Medicine, Department of Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy.ORCID 0000-0003-4895-9707
Luigino CalzettaRespiratory Disease and Lung Function Unit, Department of Medicine and Surgery, University of Parma, Parma, Italy.

Funding

Zambon
6 · The paper itself

Abstract

Mucus clearance is crucial for airway protection, and its dysfunction leads to chronic obstructive pulmonary disease (COPD) characterized by mucus hypersecretion (MHS) and impaired clearance. MUC5AC and MUC5B mucin proteins are key components of airway mucus, with MUC5AC being particularly responsive to environmental stimuli, making it a potential COPD biomarker. N-acetylcysteine (NAC) is a mucolytic agent with known effects on mucus viscosity and clearance, but its precise mechanisms in COPD remain unclear. This systematic review evaluated the impact of NAC on MHS in the airways, reporting significant inhibitory effects on MUC5AC and MUC5B gene and protein expression, as well as a reduction in the number of goblet cells. NAC has demonstrated efficacy in vitro and in animal models of MHS, including COPD models, but data on human bronchial tissue are lacking. This systematic review suggests that NAC acts as a mucolytic and a mucoregulator, directly inhibiting mucus secretion and goblet cell hyperplasia. Given the critical role of MHS in COPD progression, exacerbations, and mortality, these findings highlight the potential of NAC as a targeted therapy for hypersecretion COPD phenotypes. However, further studies are needed to confirm the results of this systematic review, even in human bronchial tissue, to provide translatable evidence in clinical settings. Understanding the intimate mechanism of NAC

Indexed as

AcetylcysteineExpectorantsGoblet CellsLungMucusPulmonary Disease, Chronic ObstructiveAnimalsHumansHyperplasiaMucin 5ACMucin-5BMucociliary ClearanceAcetylcysteineExpectorantsMUC5AC protein, humanMUC5B protein, humanMucin 5ACMucin-5BCOPDmucus hypersecretionN-acetylcysteinesystematic review

Identifiers

PMID39493366
PMCPMC11531296

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

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.