Evidence map›Paper›PMID 31462690›Full record

ArticleInternational journal of obesity (2005)2020

Reduced SIRT1 and SIRT2 expression promotes adipogenesis of human visceral adipose stem cells and associates with accumulation of visceral fat in human obesity.

Sebastio Perrini, Stefania Porro, Pasquale Nigro, Angelo Cignarelli, Cristina Caccioppoli, Valentina Annamaria Genchi, Gennaro Martines, Michele De Fazio, Palma Capuano, Annalisa Natalicchio and 2 more

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in International journal of obesity (2005), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

38 citing papers in PubMed, 58 citations in OpenAlex.

  1. The Sirtuin Network: Linking NADDiabetes/metabolism research and reviews · 2026
    Review
  2. Article
  3. Isolation of endothelial progenitor cells from human adipose tissue.International journal of obesity (2005) · 2025
    Article
  4. Flavonoids inFood science & nutrition · 2025
    Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. SIRT1 Serum Concentrations in Lipodystrophic Syndromes.International journal of molecular sciences · 2024
    Article
  11. Article
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

12 authors at 1 institution in 1 country.

Sebastio Perrini *Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
Stefania Porro *Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
Pasquale NigroSection of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
Angelo CignarelliSection of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
Cristina CaccioppoliSection of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
Valentina Annamaria GenchiSection of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
Gennaro MartinesGeneral Surgery and Liver Transplantation Unit, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy.
Michele De FazioGeneral Surgery and Liver Transplantation Unit, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy.
Palma CapuanoGeneral Surgery and Liver Transplantation Unit, Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, Bari, Italy.
Annalisa NatalicchioSection of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.ORCID http://orcid.org/0000-0002-6131-7517
Luigi LaviolaSection of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy.
Francesco GiorginoSection of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, Bari, Italy. francesco.giorgino@uniba.it.ORCID http://orcid.org/0000-0001-7372-2678
University of Bari Aldo Moro · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesThe histone deacetylases SIRT1 and SIRT2 have been shown to be involved in the differentiation of rodent adipocyte precursors. In light of the differences in gene expression and metabolic function of visceral (V) and subcutaneous (S) adipose tissue (AT) and their resident cells, the aim of this study was to investigate the role of SIRT1 and SIRT2 in the differentiation of adipose stem cells (ASCs) isolated from SAT and VAT biopsies of nondiabetic obese and nonobese individuals.

methodsHuman ASCs were isolated from paired SAT and VAT biopsies obtained from 83 nonobese and 92 obese subjects and were differentiated in vitro. Adipogenesis was evaluated by analyzing the lipid deposition using an image processing software, and gene expression by RT-qPCR. SIRT1 and SIRT2 protein expression was modified by using recombinant adenoviral vectors.

resultsVisceral but not subcutaneous ASCs from obese subjects showed an intrinsic increase in both adipogenesis and lipid accumulation when compared with ASCs from nonobese subjects, and this was associated with reduced SIRT1 and SIRT2 mRNA and protein levels. Moreover, adipose tissue mRNA levels of SIRT1 and SIRT2 showed an inverse correlation with BMI in the visceral but not subcutaneous depot. Overexpression of SIRT1 or SIRT2 in visceral ASCs from obese subjects resulted in inhibition of adipocyte differentiation, whereas knockdown of SIRT1 or SIRT2 in visceral ASCs from nonobese subjects enhanced this process. Changes in SIRT1 or SIRT2 expression and adipocyte differentiation were paralleled by corresponding changes in PPARG, CEBPA, and other genes marking terminal adipocyte differentiation.

conclusionsSIRT1 and SIRT2 modulate the differentiation of human ASC. Reduced expression of SIRT1 and SIRT2 may enhance the differentiation capacity of visceral ASC in human obesity, fostering visceral adipose tissue expansion.

Indexed as

Intra-Abdominal FatAdipocytesAdipogenesisAdultCells, CulturedFemaleGene Knockdown TechniquesHumansMaleMiddle AgedObesitySirtuin 1Sirtuin 2Stem CellsSIRT1 protein, humanSIRT2 protein, humanSirtuin 1Sirtuin 2

Identifiers

PMID31462690
OpenAlexW2971119572

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.