Catecholamine and insulin control of lipolysis in subcutaneous adipose tissue during long-term diet-induced weight loss in obese women

2012 ◽  
Vol 302 (2) ◽  
pp. E226-E232 ◽  
Author(s):  
Katrien Koppo ◽  
Michaela Siklová-Vitková ◽  
Eva Klimčáková ◽  
Jan Polák ◽  
Marie A. Marques ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Insulin Sensitivity ◽  
Subcutaneous Adipose Tissue ◽  
Dietary Intervention ◽  
Glycerol Concentration ◽  
Obese Women ◽  
Low Calorie ◽  
Low Calorie Diet ◽  
Calorie Diet ◽  
Subcutaneous Adipose

The aim of this study was to investigate the evolution of the adrenergic and insulin-mediated regulation of lipolysis during different phases of a 6-mo dietary intervention. Eight obese women underwent a 6-mo dietary intervention consisting of a 1-mo very low-calorie diet (VLCD) followed by a 2-mo low-calorie diet (LCD) and 3-mo weight maintenance (WM) diet. At each phase of the dietary intervention, microdialysis of subcutaneous adipose tissue (SCAT) was performed at rest and during a 3-h hyperinsulinemic euglycemic clamp. Responses of dialysate glycerol concentration (DGC) were determined at baseline and during local perfusions with adrenaline or adrenaline and phentolamine before and during the last 30 min of the clamp. Dietary intervention induced a body weight reduction and an improved insulin sensitivity. DGC progressively decreased during the clamp, and this decrease was similar during the different phases of the diet. The adrenaline-induced increase in DGC was higher at VLCD and LCD compared with baseline condition and returned to prediet levels at WM. In the probe with adrenaline and phentolamine, the increase in DGC was higher than that in the adrenaline probe at baseline and WM, but it was not different at VLCD and LCD. The results suggest that the responsiveness of SCAT to adrenaline-stimulated lipolysis increases during the calorie-restricted phases due to a reduction of the α2-adrenoceptor-mediated antilipolytic action of adrenaline. At WM, adrenaline-stimulated lipolysis returned to the prediet levels. Furthermore, no direct relationship between insulin sensitivity and the diet-induced changes in the regulation of lipolysis was found.

scholarly journals Expression of Inflammation-Related Genes in Gluteal and Abdominal Subcutaneous Adipose Tissue During Weight-Reducing Dietary Intervention in Obese Women

2014 ◽  
pp. 73-82 ◽  
Author(s):  
L. MALIŠOVÁ ◽  
L. ROSSMEISLOVÁ ◽  
Z. KOVÁČOVÁ ◽  
J. KRAČMEROVÁ ◽  
M. TENCEROVÁ ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Dietary Intervention ◽  
Weight Maintenance ◽  
Maintenance Phase ◽  
Obese Women ◽  
Very Low Calorie Diet ◽  
Low Calorie ◽  
Paired Samples ◽  
Low Calorie Diet ◽  
Calorie Diet

Accumulation of adipose tissue in lower body lowers risk of cardiovascular and metabolic disorders. The molecular basis of this protective effect of gluteofemoral depot is not clear. The aim of this study was to compare the profile of expression of inflammation-related genes in subcutaneous gluteal (sGAT) and abdominal (sAAT) adipose tissue at baseline and in response to multiphase weight-reducing dietary intervention (DI). 14 premenopausal healthy obese women underwent a 6 months’ DI consisting of 1 month very-low-calorie-diet (VLCD), subsequent 2 months’ low-calorie-diet and 3 months’ weight maintenance diet (WM). Paired samples of sGAT and sAAT were obtained before and at the end of VLCD and WM periods. mRNA expression of 17 genes (macrophage markers, cytokines) was measured using RT-qPCR on chip-platform. At baseline, there were no differences in gene expression of macrophage markers and cytokines between sGAT and sAAT. The dynamic changes induced by DI were similar in both depots for all genes except for three cytokines (IL6, IL10, CCL2) that differed in their response during weight maintenance phase. The results show that, in obese women, there are no major differences between sGAT and sAAT in expression of inflammation-related genes at baseline conditions and in response to the weight-reducing DI.

scholarly journals Expression of Lipolytic Genes in Adipose Tissue Is Differentially Regulated During Multiple Phases of Dietary Intervention in Obese Women

2013 ◽  
pp. 527-535 ◽  
Author(s):  
K. KOPPO ◽  
C. VALLE ◽  
M. ŠIKLOVÁ-VÍTKOVÁ ◽  
E. CZUDKOVÁ ◽  
I. DE GLISEZINSKI ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Time Course ◽  
Dietary Intervention ◽  
Hormone Sensitive Lipase ◽  
Mrna Levels ◽  
Obese Women ◽  
Very Low Calorie Diet ◽  
Low Calorie ◽  
Low Calorie Diet ◽  
Calorie Diet

The aim of this study was to investigate the time-course of the expression of key lipolysis-regulating genes in the subcutaneous adipose tissue (SCAT) during different phases of a 6-month dietary intervention. Fifteen obese women (BMI 34.7±1.0 kg.m-2) underwent a 6-month dietary intervention consisting of 1 month very low calorie diet (VLCD), followed by 2 months low calorie diet (LCD) and 3 months weight maintenance diet (WM). At each phase of the dietary intervention, a needle microbiopsy of the abdominal SCAT was obtained to evaluate mRNA expression of key lipolysis-regulating genes and a hyperinsulinemic euglycemic clamp (HEC) was performed. Dietary intervention induced a body weight reduction of 9.8 % and an improvement of insulin sensitivity as assessed by a HEC. Compared to pre-diet levels, mRNA levels of the adrenergic β2-receptor in SCAT were higher at the end of VLCD and not different at the end of LCD and WM. In contrast, the expression of the adrenergic α2-receptor was lower at the end of VLCD and LCD compared to the pre-diet levels and did not differ at WM. Adipose triglyceride lipase and hormone-sensitive lipase levels were lower than the pre-diet levels at the end of LCD only, while phosphodiesterase-3B and the insulin receptor levels did not change throughout the dietary intervention. The results suggest that the regulation pattern of the genes that are involved in the control of lipolysis is different at the respective phases of the dietary intervention and depends on the duration of the diet and the status of energy balance.

scholarly journals Plasma Concentrations and Subcutaneous Adipose Tissue mRNA Expression of Clusterin in Obesity and Type 2 Diabetes Mellitus: the Effect of Short-Term Hyperinsulinemia, Very-Low-Calorie Diet and Bariatric Surgery

2016 ◽  
pp. 481-492 ◽  
Author(s):  
J. KLOUČKOVÁ ◽  
Z. LACINOVÁ ◽  
P. KAVÁLKOVÁ ◽  
P. TRACHTA ◽  
M. KASALICKÝ ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Mrna Expression ◽  
Subcutaneous Adipose Tissue ◽  
Energy Homeostasis ◽  
Obese Women ◽  
Very Low Calorie Diet ◽  
Low Calorie Diet ◽  
Calorie Diet ◽  
Subcutaneous Adipose

Clusterin is a heterodimeric glycoprotein with wide range of functions. To further explore its possible regulatory role in energy homeostasis and in adipose tissue, we measured plasma clusterin and its mRNA expression in subcutaneous adipose tissue (SCAT) of 15 healthy lean women, 15 obese women (OB) and 15 obese women with type 2 diabetes mellitus (T2DM) who underwent a 2-week very low-calorie diet (VLCD), 10 obese women without T2DM who underwent laparoscopic sleeve gastrectomy (LSG) and 8 patients with T2DM, 8 patients with impaired glucose tolerance (IGT) and 8 normoglycemic patients who underwent hyperinsulinemic euglycemic clamp (HEC). VLCD decreased plasma clusterin in OB but not in T2DM patients while LSG and HEC had no effect. Clusterin mRNA expression in SCAT at baseline was increased in OB and T2DM patients compared with controls. Clusterin mRNA expression decreased 6 months after LSG and remained decreased 12 months after LSG. mRNA expression of clusterin was elevated at the end of HEC compared with baseline only in normoglycemic but not in IGT or T2DM patients. In summary, our data suggest a possible local regulatory role for clusterin in the adipose tissue rather than its systemic involvement in the regulation of energy homeostasis.

scholarly journals Low-Calorie Diet Plus Interval Exercise Training Improves Metabolic Flexibility and Insulin Sensitivity in Obese Women

2018 ◽  
Vol 50 (5S) ◽  
pp. 222
Author(s):  
Nicole M. Gilbertson ◽  
Natalie Z.M. Eichner ◽  
Emily M. Heiston ◽  
Monique Francois ◽  
Julian M. Gaítan ◽  
...  
Keyword(s):  
Insulin Sensitivity ◽  
Exercise Training ◽  
Metabolic Flexibility ◽  
Obese Women ◽  
Low Calorie ◽  
Interval Exercise ◽  
Low Calorie Diet ◽  
Calorie Diet

scholarly journals Comparison of Early (2 Days) and Later (28 Days) Response of Adipose Tissue to Very Low-Calorie Diet in Obese Women

2016 ◽  
Vol 101 (12) ◽  
pp. 5021-5029 ◽  
Author(s):  
Veronika Šrámková ◽  
Lenka Rossmeislová ◽  
Eva Krauzová ◽  
Jana Kračmerová ◽  
Michal Koc ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Obese Women ◽  
Very Low Calorie Diet ◽  
Low Calorie ◽  
Low Calorie Diet ◽  
Calorie Diet

scholarly journals Secretion of adiponectin multimeric complexes from adipose tissue explants is not modified by very low calorie diet

2009 ◽  
Vol 160 (4) ◽  
pp. 585-592 ◽  
Author(s):  
Zuzana Kovacova ◽  
Michaela Vitkova ◽  
Michaela Kovacikova ◽  
Eva Klimcakova ◽  
Magda Bajzova ◽  
...  
Keyword(s):  
Weight Loss ◽  
Adipose Tissue ◽  
Insulin Sensitivity ◽  
Dietary Intervention ◽  
Culture Media ◽  
Very Low Calorie Diet ◽  
Low Calorie Diet ◽  
Total Adiponectin ◽  
Calorie Diet ◽  
Obese Subjects

ObjectiveAdiponectin is a protein abundantly secreted by the adipose tissue (AT). Plasma adiponectin levels are decreased in obese, insulin-resistant, and type 2 diabetic patients. Various multimeric complexes, i.e. high-, middle-, and low-molecular weight isoforms (HMW, MMW and LMW), are present in plasma. Here, we investigated the effect of weight reducing diet on the distribution of adiponectin isoforms in plasma and on their secretion in AT explants from obese subjects.DesignA total of 20 obese subjects (age 37.8±7.3 years, body mass index 33.9±5.0 kg/m2) underwent eight weeks of very low-calorie diet (VLCD). A needle biopsy of subcutaneous abdominal AT and blood samples were taken before and after dietary intervention. AT explants were incubated in culture medium for 4 h. ELISA assay and western blot analyses were used to identify adiponectin complexes in culture media and in plasma.ResultsThe distribution of adiponectin polymers in plasma was different from that secreted in human AT explants. Before VLCD, the relative amount of HMW isoform was 75.5±9.1% of total adiponectin in culture media and 52.2±11.2% in plasma. Despite the diet-induced weight loss and improvement of insulin sensitivity, VLCD neither induced change in total adiponectin level nor in the ratio of HMW to total adiponectin in plasma and in culture media of AT explants.ConclusionsThe profile of adiponectin polymeric isoforms secreted by AT explants into culture media differs from the plasma profile. A dietary intervention leading to weight loss and improvement of insulin sensitivity was not associated with modifications of AT secretion of total or HMW adiponectin.

Effect of training on insulin sensitivity of glucose uptake and lipolysis in human adipose tissue

2000 ◽  
Vol 279 (2) ◽  
pp. E376-E385 ◽  
Author(s):  
Bente Stallknecht ◽  
Jens J. Larsen ◽  
Kari J. Mikines ◽  
Lene Simonsen ◽  
Jens Bülow ◽  
...  
Keyword(s):  
Blood Flow ◽  
Adipose Tissue ◽  
Insulin Sensitivity ◽  
Glucose Uptake ◽  
Subcutaneous Adipose Tissue ◽  
Whole Body ◽  
Tissue Blood Flow ◽  
Glycerol Concentration ◽  
Adipose Tissue Blood Flow ◽  
Subcutaneous Adipose

Training increases insulin sensitivity of both whole body and muscle in humans. To investigate whether training also increases insulin sensitivity of adipose tissue, we performed a three-step hyperinsulinemic, euglycemic clamp in eight endurance-trained (T) and eight sedentary (S) young men [insulin infusion rates: 10,000 ( step I), 20,000 ( step II), and 150,000 ( step III) μU · min−1 · m−2]. Glucose and glycerol concentrations were measured in arterial blood and also by microdialysis in interstitial fluid in periumbilical, subcutaneous adipose tissue and in quadriceps femoris muscle (glucose only). Adipose tissue blood flow was measured by 133Xe washout. In the basal state, adipose tissue blood flow tended to be higher in T compared with S subjects, and in both groups blood flow was constant during the clamp. The change from basal in arterial-interstitial glucose concentration difference was increased in T during the clamp but not in S subjects in both adipose tissue and muscle [adipose tissue: step I ( n = 8), 0.48 ± 0.18 mM (T), 0.23 ± 0.11 mM (S); step II ( n = 8), 0.19 ± 0.09 (T), −0.09 ± 0.24 (S); step III( n = 5), 0.47 ± 0.24 (T), 0.06 ± 0.28 (S); (T: P < 0.001, S: P > 0.05); muscle: step I ( n = 4), 1.40 ± 0.46 (T), 0.31 ± 0.21 (S); step II ( n = 4), 1.14 ± 0.54 (T), −0.08 ± 0.14 (S); step III( n = 4), 1.23 ± 0.34 (T), 0.24 ± 0.09 (S); (T: P < 0.01, S: P > 0.05)]. Interstitial glycerol concentration decreased faster in T than in S subjects [half-time: T, 44 ± 9 min ( n = 7); S, 102 ± 23 min ( n = 5); P < 0.05]. In conclusion, training enhances insulin sensitivity of glucose uptake in subcutaneous adipose tissue and in skeletal muscle. Furthermore, interstitial glycerol data suggest that training also increases insulin sensitivity of lipolysis in subcutaneous adipose tissue. Insulin per se does not influence subcutaneous adipose tissue blood flow.

Effect of hyperinsulinemia and very-low-calorie diet on interstitial cytokine levels in subcutaneous adipose tissue of obese women

2009 ◽  
Vol 297 (5) ◽  
pp. E1154-E1161 ◽  
Author(s):  
Michaela Siklova-Vitkova ◽  
Jan Polak ◽  
Eva Klimcakova ◽  
Jindra Vrzalova ◽  
Jindra Hejnova ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Subcutaneous Adipose Tissue ◽  
Obese Women ◽  
Very Low Calorie Diet ◽  
Low Calorie Diet ◽  
Calorie Diet ◽  
Subcutaneous Adipose ◽  
Diabetes And Obesity ◽  
Pai 1

Type 2 diabetes and obesity are associated with an enhanced release of a number of adipocytokines. Hyperinsulinemia, frequently present in type 2 diabetes and obesity, might be one of the drivers of the enhanced production of adipocytokines. The aim of this study was to investigate the interstitial levels of cytokines in subcutaneous adipose tissue (SCAT) in response to hyperinsulinemia and the effect of weight-reducing hypocaloric diet on this regulation in obese subjects. Thirteen obese premenopausal women participated in the study. Concentrations of seven cytokines were measured in plasma and in AT interstitial fluid collected by microdialysis during a euglycemic-hyperinsulinemic clamp and during control infusion of physiological saline. A subgroup of six women underwent a 4-wk very-low-calorie diet (VLCD). Microdialysis during the clamp was performed before and at the end of VLCD. Hyperinsulinemia induced an increase of monocyte chemoatractant protein (MCP-1) and IL-6 SCAT interstitial and plasma levels and elevated IL-8 levels in SCAT. The relative changes of IL-6 levels in the dialysate correlated with changes of IL-8 and MCP-1. The interstitial and plasma levels of IL-1β, IL-10, TNFα, and plasminogen activator inhibitor (PAI-1) remained unchanged in response to hyperinsulinemia. VLCD resulted in enhancement of the hyperinsulinemia-induced augmentation of MCP-1, IL-6, and IL-8 interstitial levels. In conclusion, hyperinsulinemia upregulates the interstitial levels of MCP-1, IL-6, and IL-8 in SCAT in obese women, whereas it does not affect IL-1β, IL-10, TNFα, and PAI-1 levels. Hypocaloric diet associated with weight reduction enhances the hyperinsulinemia-induced upregulation of MCP-1, IL-6, and IL-8 in SCAT.

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