scholarly journals Gene expression in subcutaneous adipose tissue differs in women with polycystic ovary syndrome and controls matched pair-wise for age, body weight, and body mass index

Adipocyte ◽  
2014 ◽  
Vol 3 (3) ◽  
pp. 190-196 ◽  
Author(s):  
Louise Mannerås-Holm ◽  
Anna Benrick ◽  
Elisabet Stener-Victorin
Keyword(s):  
Gene Expression ◽  
Body Mass Index ◽  
Body Weight ◽  
Adipose Tissue ◽  
Polycystic Ovary Syndrome ◽  
Subcutaneous Adipose Tissue ◽  
Polycystic Ovary ◽  
Matched Pair ◽  
Ovary Syndrome ◽  
Subcutaneous Adipose

scholarly journals Expression of the CD11c gene in subcutaneous adipose tissue is associated with cytokine level and insulin resistance in women with polycystic ovary syndrome

2012 ◽  
Vol 167 (5) ◽  
pp. 705-713 ◽  
Author(s):  
Tao Tao ◽  
Shengxian Li ◽  
Aimin Zhao ◽  
Yanyun Zhang ◽  
Wei Liu
Keyword(s):  
Gene Expression ◽  
Insulin Resistance ◽  
Adipose Tissue ◽  
Polycystic Ovary Syndrome ◽  
Subcutaneous Adipose Tissue ◽  
Polycystic Ovary ◽  
Mrna Abundance ◽  
Model Assessment ◽  
Ovary Syndrome ◽  
Subcutaneous Adipose

Objective Alterations in the phenotypes of macrophages in adipose tissue play a key role in inflammation and insulin resistance (IR). The phenotypes of macrophages in subcutaneous adipose tissue (SAT) and the relationship between proinflammation markers and IR in women with polycystic ovary syndrome (PCOS) remain unclear. The objectives of this study are to characterize the gene expression of macrophage markers and cytokines in the SAT of PCOS women and to estimate their relationships with circulating levels of cytokines and IR. Methods The cross-sectional study involves 16 PCOS women and 18 normal control women. Cytokines and macrophage markers in the circulation and SAT were determined using ELISA, quantitative PCR, or immunofluorescence staining. IR was estimated using the homeostasis model assessment (HOMA-IR). Results The gene expression levels of CD11c along with TNF α and leptin in SAT remained significantly higher in PCOS women than in normal women (P<0.05). However, no significant differences were found in CD68 mRNA expression in SAT between women with and without PCOS (P>0.05). Furthermore, CD11c mRNA abundance provided a stronger contribution to models predicting serum levels of TNFα (sTNFα) than did CD68 mRNA abundance. Lastly, increased sTNFα was associated with increased HOMA-IR in PCOS women, and this association was independent of both overall and visceral adiposity. Conclusion The high expression level of CD11c mRNA in SAT was proved to be an important feature in PCOS women. Furthermore, CD11c mRNA abundance made a stronger contribution to models predicting sTNFα in which existing proinflammatory properties might significantly contribute to the pathogenesis of IR in PCOS women.

scholarly journals Evidence for Masculinization of Adipokine Gene Expression in Visceral and Subcutaneous Adipose Tissue of Obese Women With Polycystic Ovary Syndrome (PCOS)

2013 ◽  
Vol 98 (2) ◽  
pp. E388-E396 ◽  
Author(s):  
M. Ángeles Martínez-García ◽  
Rafael Montes-Nieto ◽  
Elena Fernández-Durán ◽  
María Insenser ◽  
Manuel Luque-Ramírez ◽  
...  
Keyword(s):  
Gene Expression ◽  
Adipose Tissue ◽  
Polycystic Ovary Syndrome ◽  
Subcutaneous Adipose Tissue ◽  
Polycystic Ovary ◽  
Obese Women ◽  
Ovary Syndrome ◽  
Subcutaneous Adipose

scholarly journals Body composition of lean women with polycystic ovary syndrome

2013 ◽  
Vol 76 (2) ◽  
pp. 183-198 ◽  
Author(s):  
Lina Zabulienė ◽  
Jurgita Urboniene ◽  
Janina Tutkuvienė
Keyword(s):  
Adipose Tissue ◽  
Polycystic Ovary Syndrome ◽  
Subcutaneous Adipose Tissue ◽  
Polycystic Ovary ◽  
Ovary Syndrome ◽  
Tissue Mass ◽  
Skeletal Mass ◽  
Cohen’S D ◽  
Cohen's D ◽  
Subcutaneous Adipose

Abstract Polycystic ovary syndrome (PCOS) is one of the most frequent endocrine and metabolic disorders in reproductive age women, and it is related to changes in body size, shape and composition. Anthropometric somatotype is a quantitative description of the individual’s body shape and composition classified as endomorphy, mesomorphy or ectomorphy. Since PCOS somatotype has never previously been studied, here we evaluate body shape and composition phenomena in lean women with polycystic ovary syndrome and assess relationships with metabolic parameters. The study of 20-35 year-old women was carried out at the Department of Anatomy, Histology and Anthropology at Vilnius University. Standard anthropometric instruments and methods were used, and J. Matiegka’s equations calculated skeletal mass, skin and subcutaneous adipose tissue and muscles and internal organs. In addition, Heath - Carter’s somatotypes were computed, and the participants’ glucose, insulin, testosterone, sex hormone-binding globulin and lipid levels were established. We analysed data from 120 women with a mean age of 27.30 ± 3.68 years. Lean women with PCOS had greater skeletal mass by 0.47 kg (p<0.05, Cohen’s d=1.14), greater skin and subcutaneous adipose tissue mass by 2.79 kg (p<0.05, Cohen’s d=6.07) and lower muscle mass by 1.47 kg (p<0.05, Cohen’s d=2.84) compared to control women (p<0.05). The mean PCOS somatotype ratio was 4.96-4.38-3.00 (SD 1.50-1.26-1.11). This classified women with PCOS as mesomorphic endomorphs, in contrast to healthy women who were endomorphic mesomorphs. The PCOS subjects’ skin and subcutaneous adipose tissue and endomorphy/mesomorphy somatotype positively correlated with insulin levels and the HOMA-IR. It was established that lean women with polycystic ovary syndrome had a mesomorphic endomorph somatotype and higher skin and subcutaneous adipose tissue mass, but less muscle mass than healthy lean women. In addition, skin and subcutaneous adipose tissue positively correlated with insulin level and HOMA-IR in lean PCOS women.

scholarly journals MicroRNA-21 Modulates White Adipose Tissue Browning and Altered Thermogenesis in a Mouse Model of Polycystic Ovary Syndrome

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A775-A776
Author(s):  
Samar Rezq ◽  
Alexandra M Huffman ◽  
Maryam Syed ◽  
Jelina Basnet ◽  
Jussara M do Carmo ◽  
...  
Keyword(s):  
Gene Expression ◽  
Body Weight ◽  
Adipose Tissue ◽  
Energy Expenditure ◽  
Polycystic Ovary Syndrome ◽  
Fat Mass ◽  
White Adipose Tissue ◽  
Polycystic Ovary ◽  
Ovary Syndrome ◽  
Iodothyronine Deiodinase

Abstract Background and Aim: Polycystic ovary syndrome (PCOS) is associated with obesity, and white adipose tissue (WAT) and brown adipose tissue (BAT) dysregulation. However, the molecular mechanisms that mediate WAT and BAT derangements in PCOS are poorly understood. Subcutaneous (SC) WAT (SC-WAT) can transition to a beige/brite adipose tissue phenotype (browning) under altered thermogenic conditions. MicroRNAs play critical functions in brown adipocyte differentiation and maintenance. We aim to study the role of microRNA-21 (miR-21) in androgen-mediated browning and beiging derangements in both SC-WAT and BAT. Methods: Three week-old miR-21 knockout (miR21KO) or wild type (WT) female mice were treated with dihydrotestosterone (DHT, 8 mg/silastic tube) or vehicle for 90 days (n=12/grp). Body composition was measured by EchoMRI. Energy expenditure (EE), oxygen consumption (VO2), and carbon dioxide production (VCO2) were measured by indirect calorimetry. Glucose homeostasis was measured by oral glucose tolerance test (OGTT). HOMA-IR index was calculated from fasting serum glucose and insulin levels. Gene expression for browning (UCP1, Cox7a1, Elov3, Dio2 and Cidea) and beiging (Hspb7 and Txb1) markers was quantified by RT-qPCR in SC-WAT and BAT. Results: DHT increased body weight (25.07 ± 0.52 vs 21.79 ± 0.47 g, p&lt;0.05) and fat mass (4.60 ± 0.46 vs 1.98 ± 0.12 g, p&lt;0.05), impaired OGTT (186.10 ± 5.99 vs 250.70 ± 14.76 mg.min/dL, p&lt;0.05), and did not significantly change EE, VO2 or VCO2 in WT mice. All browning markers were downregulated by DHT in SC-WAT; however, only iodothyronine deiodinase 2 (Dio2) downregulation reached significance in both SC-WAT and BAT (by 53 and 40%, respectively) compared with the vehicle-treated mice. Beiging markers were significantly upregulated in SC-WAT and did not change in BAT. DHT-treated miR21KO mice showed attenuated DHT-mediated increase in body weight (23.84 ± 0.99 vs 25.07 ± 0.52 g, p&lt;0.05) compared with WT mice. MiR-21 ablation did not modify DHT-mediated increase in fat mass or OGTT but worsened insulin resistance as calculated by the HOMA-IR index. Additionally, DHT-treated miR21KO mice showed a trend to reduced EE, VO2 and VCO2 values compared with DHT-treated WT. Gene expression analysis showed an exacerbation in DHT-mediated reduction in browning markers expression in the SC-WAT. Additionally, the induction in the adaptive beiging response was abolished in SC-WAT. Conclusion and Significance: These findings suggest that adipose tissue miR-21 may have a protective role in PCOS and ameliorate the DHT-mediated decrease in energy expenditure. Adipose tissue-specific modulation of miR-21 levels could be a novel therapeutic approach for the treatment of PCOS-associated metabolic derangements. (Supported by NIH grants NIGMS P20GM121334 to LLYC and DGR, NIDDK R21DK113500 to DGR, NIGMS P20GM104357 and NHLBI P01HL51971).

Subcutaneous adipose tissue topography and metabolic disturbances in polycystic ovary syndrome

2009 ◽  
Vol 121 (7-8) ◽  
pp. 262-269 ◽  
Author(s):  
Elisabeth Wehr ◽  
Reinhard Möller ◽  
Renate Horejsi ◽  
Albrecht Giuliani ◽  
Daisy Kopera ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Polycystic Ovary Syndrome ◽  
Subcutaneous Adipose Tissue ◽  
Polycystic Ovary ◽  
Metabolic Disturbances ◽  
Ovary Syndrome ◽  
Subcutaneous Adipose
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