Evidence map›Paper›PMID 31836875›Full record

ReviewNature reviews. Endocrinology2020

The role of macrophages in obesity-associated islet inflammation and β-cell abnormalities.

Wei Ying, Wenxian Fu, Yun Sok Lee, Jerrold M Olefsky

Abstract readReview
In one paragraph

Review in Nature reviews. Endocrinology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 225 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
225citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

225 citing papers in PubMed, 1 synthesis or guideline pooled it.

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165 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

4 authors.

Wei YingDivision of Endocrinology and Metabolism, Department of Medicine, University of California San Diego, La Jolla, CA, USA.
Wenxian FuPediatric Diabetes Research Center, Department of Pediatrics, University of California San Diego, La Jolla, CA, USA.
Yun Sok LeeDivision of Endocrinology and Metabolism, Department of Medicine, University of California San Diego, La Jolla, CA, USA.
Jerrold M OlefskyDivision of Endocrinology and Metabolism, Department of Medicine, University of California San Diego, La Jolla, CA, USA. jolefsky@ucsd.edu.ORCID http://orcid.org/0000-0003-0392-1705

Funding

Transgenic & Knock-out MouseP30DK063491 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI PETER J TONTONOZ · 2003 to 2026
$40.4M
San Diego Clinical and Translational Research InstituteUL1TR000100 · NCATS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2012 to 2015
$19.7M
Promotion of beta cell proliferation by epigenetically reprogrammed macrophagesR01DK114427 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SANDER, MAIKE · 2018 to 2022
$1.9M
Effects of Fractalkine on Beta Cell FunctionR01DK101395 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI OLEFSKY, JERROLD MICHAEL · 2014 to 2017
$1.6M
Adipose tissue macrophages secrete exosome-miRs as paracrine/endocrine molecules to directly modulate insulin target cell function in response to obesityK99DK115998 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI YING, WEI · 2018 to 2019
$180k
NCATS NIH HHS UL1 TR000100NIDDK NIH HHS K99 DK115998NIDDK NIH HHS P30 DK063491NIDDK NIH HHS R01 DK101395NIDDK NIH HHS R01 DK114427
6 · The paper itself

Abstract

Chronic, unresolved tissue inflammation is a well-described feature of obesity, type 2 diabetes mellitus (T2DM) and other insulin-resistant states. In this context, adipose tissue and liver inflammation have been particularly well studied; however, abundant evidence demonstrates that inflammatory processes are also activated in pancreatic islets from obese animals and humans with obesity and/or T2DM. In this Review, we focus on the characteristics of immune cell-mediated inflammation in islets and the consequences of this with respect to β-cell function. In contrast to type 1 diabetes mellitus, the dominant immune cell type causing inflammation in obese and T2DM islets is the macrophage. The increased macrophage accumulation in T2DM islets primarily arises through local proliferation of resident macrophages, which then provide signals (such as platelet-derived growth factor) that drive β-cell hyperplasia (a classic feature of obesity). In addition, islet macrophages also impair the insulin secretory capacity of β-cells. Through these mechanisms, islet-resident macrophages underlie the inflammatory response in obesity and mechanistically participate in the β-cell hyperplasia and dysfunction that characterizes this insulin-resistant state. These findings point to the possibility of therapeutics that target islet inflammation to elicit beneficial effects on β-cell function and glycaemia.

Indexed as

AnimalsHumansInflammationInsulin-Secreting CellsIslets of LangerhansMacrophagesObesity

Identifiers

PMID31836875
PMCPMC8315273

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.