Effect of short-term hyperglycemia on adipose tissue fluxes of selected cytokines in vivo during multiple phases of diet-induced weight loss in obese women
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Effect of short-term hyperglycemia on adipose tissue fluxes of selected cytokines in vivo during multiple phases of diet-induced weight loss in obese women. / Siklova, Michaela; Simonsen, Lene; Polak, Jan; Stich, Vladimir; Bülow, Jens.
In: Journal of Clinical Endocrinology and Metabolism, Vol. 100, No. 5, 2015, p. 1949-56.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Effect of short-term hyperglycemia on adipose tissue fluxes of selected cytokines in vivo during multiple phases of diet-induced weight loss in obese women
AU - Siklova, Michaela
AU - Simonsen, Lene
AU - Polak, Jan
AU - Stich, Vladimir
AU - Bülow, Jens
PY - 2015
Y1 - 2015
N2 - CONTEXT: Hyperglycemia is suggested to be one of the drivers of the proinflammatory state observed in obese and diabetic patients.OBJECTIVES: The objectives of the study was to investigate whether sc abdominal adipose tissue (scAT) could be one of the important sources of proinflammatory cytokines released in response to short-term hyperglycemia and whether this secretion capacity could be influenced by weight loss.DESIGN, PATIENTS, AND INTERVENTIONS: Output of cytokines and proteins of acute phase from scAT in response to a 3-hours hyperglycemic clamp was evaluated in nine obese women in vivo using Fick's principle. Moreover, the output of cytokines was analyzed during a multiphase dietary intervention consisting of 1 month on a very low-calorie diet and subsequent 5-month weight-stabilization phase.MAIN OUTCOME MEASURE(S): The levels of cytokines and proteins of acute phase [IL-6, IL-8, IL-1 receptor antagonist (IL-1Ra), TNF-α, monocyte chemoattractant protein-1 (MCP-1), serum amyloid A, and C-reactive protein] in arterial and venous plasma were measured during each dietary phase. The insulin sensitivity of scAT in respect to the antilipolytic effect of insulin during the clamp was assessed.RESULTS: Hyperglycemia increased the output of cytokines IL-6, MCP-1, and IL-1Ra from scAT. This effect had a tendency to be reduced after weight loss. The output of other proinflammatory substances from scAT into circulation was not detected. The diet-induced weight loss was associated with the improvement of antilipolytic insulin sensitivity in scAT.CONCLUSIONS: The results suggest that short-term hyperglycemia induces an increase of the output of cytokines IL-6, IL-1Ra, and MCP-1 from adipose tissue, and this deleterious hyperglycemia effect may be attenuated by the diet-induced weight reduction. This lowered responsiveness of the inflammation-related system may be an important feature of the weight reduction-induced improvement of the metabolic status of obese prediabetic individuals.
AB - CONTEXT: Hyperglycemia is suggested to be one of the drivers of the proinflammatory state observed in obese and diabetic patients.OBJECTIVES: The objectives of the study was to investigate whether sc abdominal adipose tissue (scAT) could be one of the important sources of proinflammatory cytokines released in response to short-term hyperglycemia and whether this secretion capacity could be influenced by weight loss.DESIGN, PATIENTS, AND INTERVENTIONS: Output of cytokines and proteins of acute phase from scAT in response to a 3-hours hyperglycemic clamp was evaluated in nine obese women in vivo using Fick's principle. Moreover, the output of cytokines was analyzed during a multiphase dietary intervention consisting of 1 month on a very low-calorie diet and subsequent 5-month weight-stabilization phase.MAIN OUTCOME MEASURE(S): The levels of cytokines and proteins of acute phase [IL-6, IL-8, IL-1 receptor antagonist (IL-1Ra), TNF-α, monocyte chemoattractant protein-1 (MCP-1), serum amyloid A, and C-reactive protein] in arterial and venous plasma were measured during each dietary phase. The insulin sensitivity of scAT in respect to the antilipolytic effect of insulin during the clamp was assessed.RESULTS: Hyperglycemia increased the output of cytokines IL-6, MCP-1, and IL-1Ra from scAT. This effect had a tendency to be reduced after weight loss. The output of other proinflammatory substances from scAT into circulation was not detected. The diet-induced weight loss was associated with the improvement of antilipolytic insulin sensitivity in scAT.CONCLUSIONS: The results suggest that short-term hyperglycemia induces an increase of the output of cytokines IL-6, IL-1Ra, and MCP-1 from adipose tissue, and this deleterious hyperglycemia effect may be attenuated by the diet-induced weight reduction. This lowered responsiveness of the inflammation-related system may be an important feature of the weight reduction-induced improvement of the metabolic status of obese prediabetic individuals.
U2 - 10.1210/jc.2014-3846
DO - 10.1210/jc.2014-3846
M3 - Journal article
C2 - 25751103
VL - 100
SP - 1949
EP - 1956
JO - Journal of Clinical Endocrinology and Metabolism
JF - Journal of Clinical Endocrinology and Metabolism
SN - 0021-972X
IS - 5
ER -
ID: 137822876