Evidence map›Paper›PMID 26448865›Full record

ArticleBMJ open respiratory research2015

Lymphangiogenic factors are associated with the severity of hypersensitivity pneumonitis.

Masahiro Yamashita, Takashi Mouri, Miyuki Niisato, Hiroo Nitanai, Hitoshi Kobayashi, Masahito Ogasawara, Ryujin Endo, Kazuki Konishi, Tamotsu Sugai, Takashi Sawai and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open respiratory research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Guideline
  2. Article
  3. VEGF (Vascular Endothelial Growth Factor) and Fibrotic Lung Disease.International journal of molecular sciences · 2018
    Review
  4. Assessment of pulmonaryClinical and translational radiation oncology · 2017
    Article
  5. Review
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

11 authors at 3 institutions in 1 country.

Masahiro YamashitaDepartment of Pulmonary Medicine, Allergy and Rheumatology , Iwate Medical University School of Medicine , Morioka , Japan.
Takashi MouriDepartment of Pulmonary Medicine, Allergy and Rheumatology , Iwate Medical University School of Medicine , Morioka , Japan ; Department of Respiratory Medicine , Iwate Prefectural Chubu Hospital , Kitakami , Japan.
Miyuki NiisatoDepartment of Pulmonary Medicine, Allergy and Rheumatology , Iwate Medical University School of Medicine , Morioka , Japan.
Hiroo NitanaiDepartment of Pulmonary Medicine, Allergy and Rheumatology , Iwate Medical University School of Medicine , Morioka , Japan.
Hitoshi KobayashiDepartment of Pulmonary Medicine, Allergy and Rheumatology , Iwate Medical University School of Medicine , Morioka , Japan.
Masahito OgasawaraDepartment of Pharmacology , Ehime University Graduate School of Medicine , Toon , Japan.
Ryujin EndoDepartment of Gastroenterology and Hepatology , Iwate Medical University School of Medicine , Morioka , Japan.
Kazuki KonishiDepartment of Pulmonary Medicine , Morioka Tsunagi Onsen Hospital , Morioka , Japan.
Tamotsu SugaiDepartment of Pathology , Iwate Medical University School of Medicine , Morioka , Japan.
Takashi SawaiDepartment of Pathology , Iwate Medical University School of Medicine , Morioka , Japan.
Kohei YamauchiDepartment of Pulmonary Medicine, Allergy and Rheumatology , Iwate Medical University School of Medicine , Morioka , Japan.
Iwate Medical University · JPEhime University · JPMisasa Onsen Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAntigen presenting cells play a pivotal role in the adaptive immune response in hypersensitivity pneumonitis (HP). It was hypothesised that lymphangiogenesis is involved in the pathophysiology of HP via cell transport.

objectiveTo determine the clinical significance of lymphangiogenic factors in HP.

methodsLevels of vascular endothelial growth factors (VEGF)-A, VEGF-C, VEGF-D and CCL21 in the serum and bronchoalveolar lavage fluid (BALF) were measured in 29 healthy volunteers, 14 patients with idiopathic pulmonary fibrosis (IPF) and 26 patients with HP by ELISA. Additionally, immunohistochemical analyses were performed using lung specimens of patients with HP (n=8) and IPF (n=10).

resultsBALF VEGF-D levels were significantly elevated in patients with HP compared to the other groups. BALF VEGF-D levels in patients with HP correlated significantly with the BALF total cell and lymphocyte counts (r=0.485, p=0.014 and r=0.717, p<0.0001, respectively). BALF VEGF-C and CCL21 levels were increased in patients with HP compared to healthy volunteers, but not patients with IPF. BALF CCL21 levels were negatively correlated with the forced expiratory volume in 1 s percentage and diffuse capacity of the lung for carbon monoxide (r=-0.662, p=0.007 and r=-0.671, p=0.024, respectively). According to the immunohistochemical analyses, CCL21 was expressed in the lymphatic endothelium in both conditions and CCR7(+) cells were aggregated around lymphatics in patients with HP, but not in patients with IPF.

conclusionsLymphangiogenic factors might be associated with the inflammatory and functional severity of HP. The increased BALF VEGF-D levels were associated with lymphatic alveolitis intensity, and CCL21 with lung function impairment.

Indexed as

Allergic Alveolitis

Identifiers

PMID26448865
PMCPMC4593170
OpenAlexW1558522299

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.