Evidence map›Paper›PMID 8202878›Full record

ArticleThorax1994

Transforming growth factor beta 1 gene expression in human airways.

J D Aubert, B I Dalal, T R Bai, C R Roberts, S Hayashi, J C Hogg

Open access · bronzeAbstract read
In one paragraph

Article in Thorax, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.6field-weighted citation impact, top 16% of its field
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

35 citing papers in PubMed, 126 citations in OpenAlex.

  1. Article
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  4. Breathing new life into the study of COPD with genes identified from genome-wide association studies.European respiratory review : an official journal of the European Respiratory Society · 2024
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  6. Current insights into the genetics of food allergy.The Journal of allergy and clinical immunology · 2021
    Review
  7. Airway mechanical compression: its role in asthma pathogenesis and progression.European respiratory review : an official journal of the European Respiratory Society · 2020
    Review
  8. Role of Non-Coding RNAs in Lung Circadian Clock Related Diseases.International journal of molecular sciences · 2020
    Review
  9. Article
  10. A Neutralizing Aptamer to TGFBR2 and miR-145 Antagonism Rescue Cigarette Smoke- and TGF-β-Mediated CFTR Expression.Molecular therapy : the journal of the American Society of Gene Therapy · 2019
    Article
  11. Article
  12. Fibroblast-to-myofibroblast transition in bronchial asthma.Cellular and molecular life sciences : CMLS · 2018
    Review
  13. TGF-β1 Evokes Human Airway Smooth Muscle Cell Shortening and Hyperresponsiveness via Smad3.American journal of respiratory cell and molecular biology · 2018
    Article
  14. Article
  15. Article
  16. Review
  17. Transforming Growth Factor-β: Master Regulator of the Respiratory System in Health and Disease.American journal of respiratory cell and molecular biology · 2016
    Review
  18. Article
  19. Article
  20. Article
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

6 authors at 1 institution in 1 country.

J D AubertUBC Pulmonary Research Laboratory, St Paul's Hospital, Vancouver, British Columbia, Canada.
B I Dalal
T R Bai
C R Roberts
S Hayashi
J C Hogg
St. Paul's Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAsthmatic airways have a characteristic deposition of connective tissue under the epithelial basement membrane, but the mediators involved in this alteration are unknown. Several authors have postulated that transforming growth factor beta 1 (TGF-beta 1) could be overexpressed in asthmatic airways.

methodsLung samples from 16 asthmatic patients, six patients with chronic obstructive pulmonary disease (COPD), and six non-obstructed smokers were analysed. RNA was extracted from these tissues to measure expression of TGF-beta 1 by Northern blot analysis using a cDNA probe for TGF-beta 1. The level of expression was quantitated by densitometry using glyceraldehyde 3-phosphate dehydrogenase mRNA as a control. TGF-beta 1 was localised to specific cell types in these lungs by immunohistochemical analysis using polyclonal antibodies specific for intracellular and extracellular TGF-beta 1.

resultsThe 2.5 kb TGF-beta 1 mRNA was seen in all 18 samples analysed by Northern blotting and densitometric analysis showed no difference between the asthmatic group (mean (SD) 108% (43%)), the group with COPD (122% (33%)), and the non-obstructed group (100% (49%)). The TGF-beta 1 precursor was immunolocalised throughout the airway wall including the epithelium and in alveolar macrophages. The mature TGF-beta 1 was localised primarily within the connective tissue of the airway wall. These patterns of expression of both forms of TGF-beta 1 were similar in lungs from asthmatic patients, those with COPD, and controls.

conclusionsWhile TGF-beta 1 mRNA and protein are abundantly expressed in human lungs, there is no clear difference in expression between the airways of asthmatic subjects and those of smokers with and without COPD.

Indexed as

Gene ExpressionAdolescentAdultAgedAged, 80 and overAsthmaBlotting, NorthernChildChild, PreschoolDNA ProbesFemaleHumansImmunohistochemistryLungLung Diseases, ObstructiveMaleDNA ProbesRNA, MessengerTransforming Growth Factor beta

Identifiers

PMID8202878
PMCPMC1021150
OpenAlexW2118740066

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.