Evidence map›Paper›PMID 21665001›Full record

ArticleAmerican journal of human genetics2011

Hereditary leukonychia, or porcelain nails, resulting from mutations in PLCD1.

Maija Kiuru, Mazen Kurban, Munenari Itoh, Lynn Petukhova, Yutaka Shimomura, Muhammad Wajid, Angela M Christiano

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.8field-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

15 citing papers in PubMed, 51 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Leukonychia: What Can White Nails Tell Us?American journal of clinical dermatology · 2022
    Review
  6. Identification of two novel mutations in theMolecular medicine reports · 2021
    Article
  7. Article
  8. Mutation in Phospholipase C, δ1 (Balkan journal of medical genetics : BJMG · 2018
    Article
  9. Article
  10. [Leukonychia totalis].Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete · 2016
    Article
  11. Article
  12. Article
  13. Idiopathic congenital true leukonychia totalis.Indian dermatology online journal · 2014
    Article
  14. Article
  15. 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

7 authors at 1 institution in 1 country.

Maija KiuruDepartment of Dermatology, Columbia University, New York, NY 10032, USA.
Mazen KurbanDepartment of Dermatology, Columbia University, New York, NY 10032, USA.
Munenari ItohDepartment of Dermatology, Columbia University, New York, NY 10032, USA.
Lynn PetukhovaDepartment of Dermatology, Columbia University, New York, NY 10032, USA.
Yutaka ShimomuraDepartment of Dermatology, Columbia University, New York, NY 10032, USA.
Muhammad WajidDepartment of Dermatology, Columbia University, New York, NY 10032, USA.
Angela M ChristianoDepartment of Dermatology, Columbia University, New York, NY 10032, USA; Department of Genetics and Development, Columbia University, New York, NY 10032, USA. Electronic address: amc65@columbia.edu.
Columbia University · US

Funding

Understanding the Biology of Chronic Ulcers: Histological and Molecular Basis...P30AR044535 · NIAMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BICKERS, DAVID RINSEY · 1997 to 2015
$6.9M
MOLECULAR GENETICS OF THE KERATODERMASR01AR044924 · NIAMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI CHRISTIANO, ANGELA M · 1998 to 2008
$2.4M
GENETIC MECHANISMS IN SKIN DISEASEST32AR007605 · NIAMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BICKERS, DAVID RINSEY · 1997 to 2010
$1.2M
NIAMS NIH HHS P30 AR044535NIAMS NIH HHS P30AR44535NIAMS NIH HHS R01 AR044924NIAMS NIH HHS R01AR44924NIAMS NIH HHS T32 AR007605NIAMS NIH HHS T32AR007605
6 · The paper itself

Abstract

Hereditary leukonychia (porcelain nails or white nails) is a rare nail disorder with an unknown genetic basis. To identify variants in a gene underlying this phenotype, we identified four families of Pakistani origin showing features of hereditary leukonychia. All 20 nails of each affected individual were chalky and white in appearance, consistent with total leukonychia, with no other cutaneous, appendageal, or systemic findings. By using Affymetrix 10K chip, we established linkage to chromosome 3p21.3-p22 with a LOD score (Z) of 5.1. We identified pathogenic mutations in PLCD1 in all four families, which encodes phosphoinositide-specific phospholipase C delta 1 subunit, a key enzyme in phosphoinositide metabolism. We then identified localization of PLCD1 in the nail matrix. It was recently shown that PLCD1 is a component of the human nail plate by proteomic analysis and is localized in the matrix of human nails. Furthermore, mutations detected in PLCD1 resulted in reduced enzymatic activity in vitro. Our data show that mutations in PLCD1 underlie hereditary leukonychia, revealing a gene involved in molecular control of nail growth.

Indexed as

Chromosomes, Human, Pair 3HumansHypopigmentationMutationNail DiseasesNailsPedigreePhospholipase C deltaPhospholipase C deltaPLCD1 protein, human

Identifiers

PMID21665001
PMCPMC3113240
OpenAlexW2063007672

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.