Cited by 143Adipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and MetabolismLipid metabolism and biosynthesis

Adipose tissue hyperplasia and hypertrophy in common and syndromic obesity-the case of BBS obesity

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Horwitz, Avital, Birk, Ruth·2023·Nutrients

Abstract

Obesity is a metabolic state generated by the expansion of adipose tissue. Adipose tissue expansion depends on the interplay between hyperplasia and hypertrophy, and is mainly regulated by a complex interaction between genetics and excess energy intake. However, the genetic regulation of adipose tissue expansion is yet to be fully understood. Obesity can be divided into common multifactorial/polygenic obesity and monogenic obesity, non-syndromic and syndromic. Several genes related to obesity were found through studies of monogenic non-syndromic obesity models. However, syndromic obesity, characterized by additional features other than obesity, suggesting a more global role of the mutant genes related to the syndrome and, thus, an additional peripheral influence on the development of obesity, were hardly studied to date in this regard. This review summarizes present knowledge regarding the hyperplasia and hypertrophy of adipocytes in common obesity. Additionally, we highlight the scarce research on syndromic obesity as a model for studying adipocyte hyperplasia and hypertrophy, focusing on Bardet–Biedl syndrome (BBS). BBS obesity involves central and peripheral mechanisms, with molecular and mechanistic alternation in adipocyte hyperplasia and hypertrophy. Thus, we argue that using syndromic obesity models, such as BBS, can further advance our knowledge regarding peripheral adipocyte regulation in obesity.

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Crossref · 10.3390/nu15153445

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  • Intra-abdominal fat depots primarily expand through hypertrophy, while subcutaneous WAT has been seen to expand through both hyperplasia and hypertrophy.

    “Hyperplasia and hypertrophy can occur in a depot-specific manner, as intra-abdominal fat depots primarily expand through hypertrophy, while subcutaneous WAT has been seen to expand through both methods (54).”

    From Metabolic impact of endogenously produced estrogens by adipose tissue in females and males across the lifespan (2025) · cites this paper as [54]

    Section 4 says an intra-abdominal inguinal depot expands almost exclusively through hypertrophy, but also says gonadal WAT can expand through both hypertrophy and hyperplasia. Section 5 supports the subcutaneous-WAT portion: it describes initial expansion by hyperplasia followed by hypertrophy when that capacity is exhausted. The source therefore supports depot-specific differences, but not the broader characterization of intra-abdominal fat depots as primarily hypertrophic. (LLM, conf=0.83)

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Research works printed but not linked: 1

  1. [55]Macdougald O.A. Methods of Adipose Tissue Biology Methods in Enzymology 1st ed. Academic Press Amsterdam, The Netherlands 2014 978-0-12-411619-1

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Authors
Horwitz, A., & Birk, R.
Affiliations
Ariel University (IL)
Corresponding author
Birk, Ruth
Venue
Nutrients
Publisher
MDPI AG
Published
2023-08-04
Volume
15
Issue
15
Pages
3445
ISSN
2072-6643 (ISSN-L)
OpenAlex
W4385577907
Cited by
143
References
264
Citations by year
2026: 50 · 2025: 52 · 2024: 37 · 2023: 4
FWCI
5.59
Type
journal article
Language
en
Open access
Locations
  • Nutrients (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
adipose tissue hyperplasia, adipocyte hypertrophy, syndromic obesity, Bardet-Biedl syndrome, monogenic obesity, polygenic obesity
MeSH terms
Adipose Tissue, Animals, Humans, Hyperplasia, Hypertrophy, Obesity, Syndrome, Adipocytes, Bardet-Biedl Syndrome

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