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Age of obesity onset affects subcutaneous adipose tissue cellularity differently in the abdominal and femoral region

Author(s): Murphy J; Dera A; Morais JA; Tsoukas MA; Khor N; Sazonova T; Almeida LG; Cooke AB; Daskalopoulou SS; Tam BT; Santosa S;

Objective: We aimed to examine the effect of age of obesity onset, sex, and their interaction on abdominal and femoral subcutaneous adipose tissue (SAT) morphology (degree of adipocyte hyperplasia or hypertrophy). Methods: In this cross-sectional study, we isolated adipocytes via collagenase dig ...

Article GUID: 39045668


Senescence markers in subcutaneous preadipocytes differ in childhood- versus adult-onset obesity before and after weight loss

Author(s): Murphy J; Tam BT; Kirkland JL; Tchkonia T; Giorgadze N; Pirtskhalava T; Tsoukas MA; Morais JA; Santosa S;

Objective: The aim of this study was to determine the effect of age of obesity onset on senescence-related markers in abdominal (AB) and femoral (FEM) subcutaneous adipose tissue (SAT) before and after moderate (~10%) weight loss. Methods: AB and FEM SAT were collected from human females with ch ...

Article GUID: 37194560


Body-composition phenotypes and their associations with cardiometabolic risks and health behaviours in a representative general US sample

Author(s): Kakinami L; Plummer S; Cohen TR; Santosa S; Murphy J;

Body mass index is poor at distinguishing between adiposity and muscle. Based on dual energy X-ray absorptiometry data, a diagnostic framework to analyze body composition by categorizing fat- and muscle-mass body composition into four phenotypes has been proposed. The objective of this study was to assess the association between body-composition phenotype ...

Article GUID: 36183799


Adiposity and muscle mass phenotyping is not superior to BMI in detecting cardiometabolic risk in a cross-sectional study

Author(s): Kakinami L; Danieles PK; Ajibade K; Santosa S; Murphy J;

Objective: Classifying adiposity based on dual-energy x-ray absorptiometry (DXA) muscle and fat mass phenotypes has been proposed. Whether these phenotypes are more accurate in predicting cardiometabolic risk than BMI weight status is unknown. Methods: Data were from the National Health and Nutrition Examination Survey (NHANES; 1999-2006 cycles, n = 5,47 ...

Article GUID: 34231966


Altered immunometabolism in adipose tissue: a major contributor to the ageing process?

Author(s): Delaney KZ; Gillespie ZE; Murphy J; Wang C;

No abstract

Article GUID: 34159597


Association between rs174537 FADS1 polymorphism and immune cell profiles in abdominal and femoral subcutaneous adipose tissue: an exploratory study in adults with obesity

Author(s): Wang C; Murphy J; Delaney KZ; Khor N; Morais JA; Tsoukas MA; Lowry DE; Mutch DM; Santosa S;

Fatty acid desaturase 1 (FADS1) polymorphisms alter fatty acid content in subcutaneous adipose tissue (SAT); however, existing evidence is limited and conflicting regarding the association between FADS1 variants and SAT inflammatory status. To advance this area, we conducted an exploratory study ...

Article GUID: 33595419


Sex Affects Regional Variations in Subcutaneous Adipose Tissue T Cells but not Macrophages in Adults with Obesity

Author(s): Murphy J; Delaney KZ; Dam V; Tam BT; Khor N; Tsoukas MA; Morais JA; Santosa S;

Objective: The inflammatory environment in lower-body subcutaneous adipose tissue (SAT) has been largely unexplored. This study aimed to examine the effects of region (upper body vs. lower body) and sex on SAT immune cell profiles in young adults with obesity. Methods: Abdominal (AB) and femoral (FEM) SAT was collected from 12 males (mean [SEM] age = 30. ...

Article GUID: 33179451


Methodological considerations for the measurement of arterial stiffness using applanation tonometry

Author(s): Cooke AB; Kuate Defo A; Dasgupta K; Papaioannou TG; Lee J; Morin SN; Murphy J; Santosa S; Daskalopoulou SS;

Introduction: Accurate comparisons of carotid--femoral pulse wave velocity (cfPWV) within and across studies require standardized procedures. Guidelines suggest reporting the average of at least two cfPWV measurements; if the difference exceeds 0.5 m/s, a third measurement should be taken, and th ...

Article GUID: 33031179


A reliable, reproducible flow cytometry protocol for immune cell quantification in human adipose tissue.

Author(s): Delaney KZ, Dam V, Murphy J, Morais JA, Denis R, Atlas H, Pescarus R, Garneau PY, Santosa S

The ability to accurately identify and quantify immune cell populations within adipose tissue is important in understanding the role of immune cells in metabolic disease risk. Flow cytometry is the gold standard method for immune cell quantification. However, quantification of immune cells from a ...

Article GUID: 32926866


Acetyl-CoA regulation, OXPHOS integrity and leptin level are different in females with different onsets of obesity.

Author(s): Tam BT, Murphy J, Khor N, Morais JA, Santosa S

Although childhood-onset obesity (CO) and adult-onset obesity (AO) are known to lead to distinctive clinical manifestations and disease risks, the fundamental differences between them are largely unclear. The aim of the current study is to investigate the fundamental differences between subcutaneous adipose tissue from CO and AO and identify metabolic dif ...

Article GUID: 32808657


Intra-Abdominal Adipose Tissue Quantification by Alternative Versus Reference Methods: A Systematic Review and Meta-Analysis.

Author(s): Murphy J, Bacon SL, Morais JA, Tsoukas MA, Santosa S

Obesity (Silver Spring). 2019 May 27;: Authors: Murphy J, Bacon SL, Morais JA, Tsoukas MA, Santosa S

Article GUID: 31131996


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