Evidence map›Paper›PMID 27647805›Full record

ArticleProteomics2017

A novel, multiplexed targeted mass spectrometry assay for quantification of complement factor H (CFH) variants and CFH-related proteins 1-5 in human plasma.

Pingbo Zhang, Min Zhu, Minghui Geng-Spyropoulos, Michelle Shardell, Marta Gonzalez-Freire, Vilmundur Gudnason, Gudny Eiriksdottir, Debra Schaumberg, Jennifer E Van Eyk, Luigi Ferrucci and 1 more

Open access · greenAbstract read
In one paragraph

Article in Proteomics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.4field-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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Journal of the American Society of Nephrology : JASN · 2020
    Review
  10. Article
  11. Clinical potential of mass spectrometry-based proteogenomics.Nature reviews. Clinical oncology · 2019
    Review
  12. Article
  13. Review
  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

11 authors at 6 institutions in 2 countries.

Pingbo ZhangWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Min ZhuNational Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Minghui Geng-SpyropoulosWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Michelle ShardellNational Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Marta Gonzalez-FreireNational Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Vilmundur GudnasonIcelandic Heart Association, Reykjavik, Iceland.
Gudny EiriksdottirIcelandic Heart Association, Reykjavik, Iceland.
Debra SchaumbergDepartment of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA.
Jennifer E Van EykAdvanced Clinical BioSystems Research Institute, The Heart Institute and, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
Luigi FerrucciNational Institute on Aging, National Institutes of Health, Baltimore, MD, USA.
Richard D SembaWilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Johns Hopkins University · USIcelandic Heart Association · ISNational Institute on Aging · USNational Institutes of Health · USCedars-Sinai Medical Center · USUniversity of Utah · US

Funding

Oxidative stress and the pathogenesis of sarcopenia and disability in older womenR01AG027012 · NIA · JOHNS HOPKINS UNIVERSITY · PI SEMBA, RICHARD D · 2005 to 2018
$3.6M
Systemic complement and age-related macular degeneration.R01EY024596 · NEI · JOHNS HOPKINS UNIVERSITY · PI SEMBA, RICHARD D · 2014 to 2016
$1.6M
Oxidative Stress and the Pathogenesis of Sarcopenia and Disability in Older WomenR56AG027012 · NIA · JOHNS HOPKINS UNIVERSITY · PI SEMBA, RICHARD D · 2008 to 2008
$391k
Relationship of candidate circulating proteoforms with aging phenotypes.R56AG052973 · NIA · JOHNS HOPKINS UNIVERSITY · PI SEMBA, RICHARD D · 2016 to 2016
$211k
AGES STUDY-THE REYKJAVIK STUDY OF HEALTHY AGING FOR THE NEW MILLENNIUM-26012100N01AG012100 · NIA · ICELANDIC HEART ASSOCIATION · 2002 to 2004
–
NEI NIH HHS R01 EY024596NIA NIH HHS HHSN271201200022CNIA NIH HHS N01 AG012100NIA NIH HHS R01 AG027012NIA NIH HHS R56 AG027012NIA NIH HHS R56 AG052973
6 · The paper itself

Abstract

Age-related macular degeneration (AMD) is a leading cause of visual loss among older adults. Two variants in the complement factor H (CFH) gene, Y402H and I62V, are strongly associated with risk of AMD. CFH is encoded in regulator of complement activation gene cluster in chromosome 1q32, which includes complement factor related (CFHR) proteins, CFHR1 to CFHR5, with high amino acid sequence homology to CFH. Our goal was to build a SRM assay to measure plasma concentrations of CFH variants Y402, H402, I62, and V62, and CFHR1-5. The final assay consisted of 24 peptides and 72 interference-free SRM transition ion pairs. Most peptides showed good linearity over 0.3-200 fmol/μL concentration range. Plasma concentrations of CFH variants and CFHR1-5 were measured using the SRM assay in 344 adults. Plasma CFH concentrations (mean, SE in μg/mL) by inferred genotype were: YY402, II62 (170.1, 31.4), YY402, VV62 (188.8, 38.5), HH402, VV62 (144.0, 37.0), HY402, VV62 (164.2, 42.3), YY402, IV62 (194.8, 36.8), HY402, IV62 (181.3, 44.7). Mean (SE) plasma concentrations of CFHR1-5 were 1.63 (0.04), 3.64 (1.20), 0.020 (0.001), 2.42 (0.18), and 5.49 (1.55) μg/mL, respectively. This SRM assay should facilitate the study of the role of systemic complement and risk of AMD.

Indexed as

AdultAmino Acid SequenceBlood ProteinsComplement Factor HComplement System ProteinsHumansMass SpectrometryPeptidesPolymorphism, Single NucleotideReference StandardsTandem Mass SpectrometryBlood ProteinsCFH protein, humanComplement Factor HComplement System ProteinsPeptidesAge-related macular degenerationBiomedicineComplement factor HComplement factor H-related proteinsMass spectrometrySelected reaction monitoring

Identifiers

PMID27647805
PMCPMC5534329
OpenAlexW2523734165

What OpenQuestion holds

Textmetadata
LicenceTDM
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.