Evidence map›Paper›PMID 30006347›Full record

ArticleThe Journal of biological chemistry2018

Subcutaneous adipose tissue imaging of human obesity reveals two types of adipocyte membranes: Insulin-responsive and -nonresponsive.

Chad D McCormick, Hang N Waters, Ludmila Bezrukov, Roxana Taginya, Viraj Parikh, Ginikanwa I Onyekaba, Jordan A Levine, Andrew P Demidowich, Jack A Yanovski, Paul S Blank and 1 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.1field-weighted citation impact, top 48% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. 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 2 institutions in 1 country.

Chad D McCormickFrom the Section on Integrative Biophysics and.ORCID 0000-0003-0070-166X
Hang N WatersFrom the Section on Integrative Biophysics and.
Ludmila BezrukovFrom the Section on Integrative Biophysics and.
Roxana TaginyaFrom the Section on Integrative Biophysics and.
Viraj ParikhSection on Growth and Obesity, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892.
Ginikanwa I OnyekabaSection on Growth and Obesity, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892.
Jordan A LevineSection on Growth and Obesity, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892.
Andrew P DemidowichSection on Growth and Obesity, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892.
Jack A YanovskiSection on Growth and Obesity, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892.
Paul S BlankFrom the Section on Integrative Biophysics and.
Joshua ZimmerbergFrom the Section on Integrative Biophysics and joshz@helix.nih.gov.
Eunice Kennedy Shriver National Institute of Child Health and Human Development · USNational Institutes of Health · US

Funding

Mechanisms and Intracellular Components in Exocytosis, Membrane Assembly and Repair, and Parasite ReplicationZIAHD001415 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI ZIMMERBERG, JOSHUA · 2009 to 2025
$26.0M
Physiology, Psychology, and Genetics of ObesityZIAHD000641 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI YANOVSKI, JACK A. · 2009 to 2025
$24.8M
Intramural NIH HHS ZIA HD000641Intramural NIH HHS ZIA HD001415
6 · The paper itself

Abstract

In adipose tissue, resistance to insulin's ability to increase glucose uptake can be induced by multiple factors, including obesity. Impaired insulin action may take place at different spatial loci at the cellular or subcellular level. To begin to understand the spatial response to insulin in human subcutaneous adipose tissue (hSAT), we developed a quantitative imaging method for activation of a major signaling node in the glucoregulatory insulin signaling pathway. After treatment with insulin or control media, biopsied tissues were immunostained for Akt phosphorylation at Thr-308/9 (pAkt) and then imaged by confocal fluorescence microscopy automated to collect a large grid of high resolution fields. In hSAT from 40 men and women with obesity, substantial heterogeneity of pAkt densities in adipocyte membranes were quantified in each image mosaic using a spatial unit of at least twice the size of the point spread function. Statistical analysis of the distribution of pAkt spatial units was best fit as the weighted sum of two separate distributions, corresponding to either a low or high pAkt density. A "high pAkt fraction" metric was calculated from the fraction of high pAkt distributed units over the total units. Importantly, upon insulin stimulation, tissues from the same biopsy showed either a minimal or a substantial change in the high pAkt fraction. Further supporting a two-state response to insulin stimulation, subjects with similar insulin sensitivity indices are also segregated into either of two clusters identified by the amount of membrane-localized pAkt.

Indexed as

AdipocytesAdultAgedCell MembraneCohort StudiesEnzyme ActivationFemaleGlucose Transporter Type 4HumansInsulinInsulin ResistanceMaleMicroscopy, ConfocalMicroscopy, FluorescenceMiddle AgedObesityGlucose Transporter Type 4InsulinProto-Oncogene Proteins c-aktSLC2A4 protein, humanadipose tissueadipose tissue metabolismAkt PKBbiostatisticscellular regulationinsulininsulin resistancemetabolic syndromeobesitysubcutaneous fat

Identifiers

PMID30006347
PMCPMC6139566
OpenAlexW2883937228

What Socratic 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 Socratic graph.