Evidence map›Paper›PMID 20413710›Full record

ArticleJournal of medical genetics2010

Clinical and genetic spectrum of Birt-Hogg-Dube syndrome patients in whom pneumothorax and/or multiple lung cysts are the presenting feature.

Makiko Kunogi, Masatoshi Kurihara, Takako Shigihara Ikegami, Toshiyuki Kobayashi, Noriko Shindo, Toshio Kumasaka, Yoko Gunji, Mika Kikkawa, Shin-ichiro Iwakami, Okio Hino and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of medical genetics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 2 pooled it
6.7field-weighted citation impact, top 3% 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

76 citing papers in PubMed, 2 syntheses or guidelines pooled it, 165 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Birt-Hogg-Dubé syndrome presenting as recurrent secondary spontaneous pneumothorax: VATS.Indian journal of thoracic and cardiovascular surgery · 2025
    Article
  6. Thyroid Carcinoma in Birt-Hogg-Dubé Syndrome: Case Series and Review of Literature.Thyroid : official journal of the American Thyroid Association · 2025
    Review
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  16. A novelRespiratory medicine case reports · 2022
    Article
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  18. Review
  19. Article
  20. Article

16 more citing papers are in PubMed but not listed here.

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

12 authors at 4 institutions in 1 country.

Makiko KunogiDepartment of Respiratory Medicine, Juntendo University School of Medicine, Tokyo, Japan.
Masatoshi Kurihara
Takako Shigihara Ikegami
Toshiyuki Kobayashi
Noriko Shindo
Toshio Kumasaka
Yoko Gunji
Mika Kikkawa
Shin-ichiro Iwakami
Okio Hino
Kazuhisa Takahashi
Kuniaki Seyama
Juntendo University · JPJapanese Red Cross Medical Center · JPJuntendo University Shizuoka Hospital · JPNissan Tamagawa Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBirt-Hogg-Dubé syndrome (BHDS) is an inherited autosomal genodermatosis characterised by fibrofolliculomas of the skin, renal tumours and multiple lung cysts. Genetic studies have disclosed that the clinical picture as well as responsible germline FLCN mutations are diverse.

objectivesBHDS may be caused by a germline deletion which cannot be detected by a conventional genetic approach. Real-time quantitative polymerase chain reaction (qPCR) may be able to identify such a mutation and thus provide us with a more accurate clinical picture of BHDS.

methodsThis study analysed 36 patients with multiple lung cysts of undetermined causes. Denaturing high performance liquid chromatography (DHPLC) was applied for mutation screening. If no abnormality was detected by DHPLC, the amount of each FLCN exon in genome was quantified by qPCR.

resultsAn FLCN germline mutation was found in 23 (63.9%) of the 36 patients by DHPLC and direct sequencing (13 unique small nucleotide alterations which included 11 novel mutations). A large genomic deletion was identified in two of the remaining 13 patients by qPCR (one patient with exon 14 deletion and one patient with a deletion encompassing exons 9 to 14). Mutations including genomic deletions were most frequently identified in the 3'-end of the FLCN gene including exons 12 and 13 (13/25=52.0%). The BHDS patients whose multiple cysts prompted the diagnosis in this study showed a very low incidence of skin and renal involvement.

conclusionsBHDS is due to large deletions as well as small nucleotide alterations. Racial differences may occur between Japanese and patients of European decent in terms of FLCN mutations and clinical manifestations.

Indexed as

AdultAgedAged, 80 and overChromatography, High Pressure LiquidChromosome DisordersCystsDNA Mutational AnalysisFemaleGene DeletionGene DosageHumansLung DiseasesMaleMiddle AgedMutationPneumothoraxFLCN protein, humanProto-Oncogene ProteinsTumor Suppressor Proteins

Identifiers

PMID20413710
PMCPMC2981024
OpenAlexW2141217937

What OpenQuestion holds

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Registered trials

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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.