Circulating omentin concentration increases after weight loss.

Circulating omentin concentration increases after weight loss.
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DOI:
10.1186/1743-7075-7-27
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发表时间:
2010-04-09
影响因子:
4.5
通讯作者:
Fernández-Real JM
Fernández-Real JM
中科院分区:
医学3区
文献类型:
--
作者:
Moreno-Navarrete JM;Catalán V;Ortega F;Gómez-Ambrosi J;Ricart W;Frühbeck G;Fernández-Real JM

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Omentin-1是一种新的脂肪因子,在内脏脂肪组织中表达,与胰岛素抵抗和肥胖负相关。我们的目的是研究体重减轻引起的胰岛素敏感性改善对循环网膜素浓度的影响。在35名肥胖受试者(18名男性,17名女性)低热量减肥前后,测定了与代谢变量相关的循环网膜素-1(ELISA)浓度。基线循环网膜素-1浓度与BMI(r =-0.58,p < 0.001)、体重(r =-0.35,p = 0.045)、脂肪量(r =-0.67,p < 0.001)、循环瘦素(r =-0.7,p < 0.001)和空腹胰岛素(r =-0.37,p = 0.03)呈负相关。在体重减轻后,循环网膜素-1浓度显著增加(从44.9 ± 9.02至53.41 ± 8.8 ng/ml,p < 0.001)。体重减轻后循环网膜素的增加与胰岛素敏感性改善(与HOMA值和空腹胰岛素呈负相关,分别为r =-0.42,p = 0.02和r =-0.45,p = 0.01)和BMI降低(r =-0.54,p = 0.001)相关。如先前关于脂联素的描述,在体重减轻诱导的胰岛素敏感性改善后,循环网膜蛋白-1浓度增加。
Omentin-1 is a novel adipokine expressed in visceral adipose tissue and negatively associated with insulin resistance and obesity. We aimed to study the effects of weight loss-induced improved insulin sensitivity on circulating omentin concentrations. Circulating omentin-1 (ELISA) concentration in association with metabolic variables was measured in 35 obese subjects (18 men, 17 women) before and after hypocaloric weight loss. Baseline circulating omentin-1 concentrations correlated negatively with BMI (r = -0.58, p < 0.001), body weight (r = -0.35, p = 0.045), fat mass (r = -0.67, p < 0.001), circulating leptin (r = -0.7, p < 0.001) and fasting insulin (r = -0.37, p = 0.03). Circulating omentin-1 concentration increased significantly after weight loss (from 44.9 ± 9.02 to 53.41 ± 8.8 ng/ml, p < 0.001). This increase in circulating omentin after weight loss was associated with improved insulin sensitivity (negatively associated with HOMA value and fasting insulin, r = -0.42, p = 0.02 and r = -0.45, p = 0.01, respectively) and decreased BMI (r = -0.54, p = 0.001). As previously described with adiponectin, circulating omentin-1 concentrations increase after weight loss-induced improvement of insulin sensitivity.
循环的视黄醇结合蛋白-4浓度可能反映胰岛素抵抗相关的铁超载。
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