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Effect of an Enriched Protein Drink on Muscle Mass and Glycemic Control during Combined Lifestyle Intervention in Older Adults with Obesity and Type 2 Diabetes: A Double-Blind RCT

Memelink, R.G. (author), Pasman, W.J. (author), Bongers, A. (author), Tump, A. (author), van Ginkel, A. (author), Tromp, W. (author), Wopereis, S. (author), Verlaan, S. (author), den Bosch, J.V.V. (author), Weijs, P.J.M. (author)

Background: Weight loss is key to treatment of older adults with obesity and type 2 diabetes, but also a risk for muscle mass loss. This study investigated whether a whey protein drink enriched with leucine and vitamin D could preserve muscle mass and improve glycemic control during combined lifestyle intervention in this population. Methods:...

article 2021

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The circadian clock, shift work, and tissue-specific insulin resistance

Oosterman, J.E. (author), Wopereis, S. (author), Kalsbeek, A. (author)

Obesity and type 2 diabetes (T2D) have become a global health concern. The prevalence of obesity and T2D is significantly higher in shift workers compared to people working regular hours. An accepted hypothesis is that the increased risk for metabolic health problems arises from aberrantly timed eating behavior, that is, eating out of synchrony...

article 2020

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Environmental forces that shape early development: What we know and still need to know

Shankar, K. (author), Pivik, R.T. (author), Johnson, S.L. (author), van Ommen, B. (author), Demmer, E. (author), Murray, R. (author)

Understanding health requires more than knowledge of the genome. Environmental factors regulate gene function through epigenetics. Collectively, environmental exposures have been called the "exposome." Caregivers are instrumental in shaping exposures in a child's initial years. Maternal dietary patterns, physical activity, degree of weight gain,...

article 2018

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The structure of wheat bread influences the postprandial metabolic response in healthy men

Eelderink, C. (author), Noort, M.W.J. (author), Sozer, N. (author), Koehorst, M. (author), Holst, J.J. (author), Deacon, C.F. (author), Rehfeld, J.F. (author), Poutanen, K. (author), Vonk, R.J. (author), Oudhuis, L. (author), Priebe, M.G. (author)

Postprandial high glucose and insulin responses after starchy food consumption, associated with an increased risk of developing several metabolic diseases, could possibly be improved by altering food structure. We investigated the influence of a compact food structure; different wheat products with a similar composition were created using...

article 2015

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Effect of moderate alcohol consumption on fetuin-A levels in men and women: Post-hoc analyses of three open-label randomized crossover trials

Joosten, M.M. (author), Schrieks, I.C. (author), Hendriks, H.F.J. (author)

Background: Fetuin-A, a liver-derived glycoprotein that impairs insulin-signalling, has emerged as a biomarker for diabetes risk. Although moderate alcohol consumption has been inversely associated with fetuin-A, data from clinical trials are lacking. Thus, we evaluated whether moderate alcohol consumption decreases circulating levels of fetuin...

article 2014

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Colestilan decreases weight gain by enhanced NEFA incorporation in biliary lipids and fecal lipid excretion

Sugimoto-Kawabata, K. (author), Shimada, H. (author), Sakai, K. (author), Suzuki, K. (author), Kelder, T. (author), Pieterman, E.J. (author), Cohen, L.H. (author), Havekes, L.M. (author), Princen, H.M. (author), van den Hoek, A.M. (author)

Bile acid sequestrants (BASs) are cholesterollowering drugs that also affect hyperglycemia. The mechanism by which BASs exert these and other metabolic effects beyond cholesterol lowering remains poorly understood. The present study aimed to investigate the effects of a BAS, colestilan, on body weight, energy expenditure, and glucose and lipid...

article 2013

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Circulating insulin stimulates fatty acid retention in white adipose tissue via KATP channel activation in the central nervous System only in insulin-sensitive mice

Gaubius Instituut TNO (author), Coomans, C.P. (author), Geerling, J.J. (author), Guigas, B. (author), van den Hoek, A.M. (author), Parlevliet, E.T. (author), Ouwens, D.M. (author), Pijl, H. (author), Voshol, P.J. (author), Rensen, P.C.N. (author), Havekes, L.M. (author), Romijn, J.A. (author)

Insulin signaling in the central nervous system (CNS) is required for the inhibitory effect of insulin on glucose production. Our aim was to determine whether the CNS is also involved in the stimulatory effect of circulating insulin on the tissue-specific retention of fatty acid (FA) from plasma. In wild-type mice, hyperinsulinemic-euglycemic...

article 2011

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Stimulatory effect of insulin on glucose uptake by muscle involves the central nervous system in insulin-sensitive mice

Coomans, C.P. (author), Biermasz, N.R. (author), Geerling, J.J. (author), Guigas, B. (author), Rensen, P.C.N. (author), Havekes, L.M. (author), Romijn, J.A. (author)

OBJECTIVE - Insulin inhibits endogenous glucose production (EGP) and stimulates glucose uptake in peripheral tissues. Hypothalamic insulin signaling is required for the inhibitory effects of insulin on EGP. We examined the contribution of central insulin signaling on circulating insulin-stimulated tissue-specific glucose uptake. RESEARCH DESIGN...

article 2011

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Effect of moderate alcohol consumption on adipokines and insulin sensitivity in lean and overweight men: A diet intervention study

Beulens, J.W.J. (author), de Zoete, E.C. (author), Kok, F.J. (author), Schaafsma, G. (author), Hendriks, H.F.J. (author), TNO Kwaliteit van Leven (author)

Objective: Moderate alcohol consumption is associated with a decreased risk of type II diabetes. This study investigates the effect of moderate alcohol consumption on adipokines and insulin sensitivity. Subjects: Twenty healthy, lean (body mass index (BMI) 18.5-25 kg/m2; n=11) or overweight (BMI>27 kg/m2; n=9) men (18-25 years). Methods: Three...

article 2008

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Leptin deficiency per se dictates body composition and insulin action in ob/ob mice

van den Hoek, A.M. (author), Teusink, B. (author), Voshol, P.J. (author), Havekes, L.M. (author), Romijn, J.A. (author), Pijl, H. (author), TNO Kwaliteit van Leven (author)

Obese humans are often insulin- and leptin resistant. Since leptin can affect glucose metabolism, it is conceivable that a lack of leptin signal transduction contributes to insulin resistance. It remains unclear whether leptin affects glucose metabolism via peripheral and/or central mechanistic routes. In the present study, we aimed: (i) to...

article 2008

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Moderate alcohol consumption increases insulin sensitivity and ADIPOQ expression in postmenopausal women: A randomised, crossover trial

TNO Kwaliteit van Leven (author), Joosten, M.M. (author), Beulens, J.W.J. (author), Kersten, S. (author), Hendriks, H.F.J. (author)

Aims/hypothesis: To determine whether 6 weeks of daily, moderate alcohol consumption increases expression of the gene encoding adiponectin (ADIPOQ) and plasma levels of the protein, and improves insulin sensitivity in postmenopausal women. Methods: In a randomised, open-label, crossover trial conducted in the Netherlands, 36 apparently healthy...

article 2008

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Moderate Alcohol Consumption and Insulin Sensitivity: Observations and Possible Mechanisms

Hendriks, H.F.J. (author), TNO Kwaliteit van Leven (author)

Light to moderate alcohol consumption is associated with a reduced risk for cardiovascular diseases. Epidemiologic studies, like our analysis of the European Prospective Investigation into Cancer and Nutrition study, suggest that moderate alcohol consumption is also associated with a reduced risk of type 2 diabetes, reported for various...

article 2007

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The effect of moderate alcohol consumption on adiponectin oligomers and muscle oxidative capacity: A human intervention study

TNO Kwaliteit van Leven (author), Beulens, J.W.J. (author), van Loon, L.J.C. (author), Kok, F.J. (author), Pelsers, M. (author), Bobbert, T. (author), Spranger, J. (author), Helander, A. (author), Hendriks, H.F.J. (author)

Aims/hypothesis: The aim of this study was to investigate whether moderate alcohol consumption increases plasma high molecular weight (HMW) adiponectin and/or muscle oxidative capacity. Materials and methods: Eleven lean (BMI 18-25 kg/m2) and eight overweight (BMI ≥27 kg/m2) men consumed 100 ml whisky (∼32 g alcohol) or water daily for 4 weeks...

article 2007

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Leptin deficiency unmasks the deleterious effects of impaired peroxisome proliferator-activated receptor γ function (P465L PPARγ) in mice

Gray, S.L. (author), Dalla Nora, E. (author), Grosse, J. (author), Manieri, M. (author), Stoeger, T. (author), Medina-Gomez, G. (author), Burling, K. (author), Wattler, S. (author), Russ, A. (author), Yeo, G.S.H. (author), Chatterjee, V.K. (author), O'Rahilly, S. (author), Voshol, P.J. (author), Cinti, S. (author), Vidal-Puig, A. (author), TNO Preventie en Gezondheid (author)

Peroxisome proliferator-activated receptor (PPAR)γ is a key transcription factor facilitating fat deposition in adipose tissue through its proadipogenic and lipogenic actions. Human patients with dominant-negative mutations in PPARγ display lipodystrophy and extreme insulin resistance. For this reason it was completely unexpected that mice...

article 2006

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Endogenous interleukin-10 protects against hepatic steatosis but does not improve insulin sensitivity during high-fat feeding in mice

den Boer, M.A.M. (author), Voshol, P.J. (author), Schröder-van Der Elst, J.P. (author), Korsheninnikova, E. (author), Ouwens, D.M. (author), Kuipers, F. (author), Havekes, L.M. (author), Romijn, J.A. (author), TNO Kwaliteit van Leven (author)

Several studies have demonstrated an association in humans between plasma levels or production capacity of the antiinflammatory cytokine IL-10 and insulin sensitivity. The aim of our study was to investigate the protective role of endogenous IL-10 availability in the development of diet-induced insulin resistance. We compared parameters of...

article 2006

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Hepatic glucose production is more sensitive to insulin-mediated inhibition than hepatic VLDL-triglyceride production

den Boer, M.A.M. (author), Voshol, P.J. (author), Kuipers, F. (author), Romijn, J.A. (author), Havekes, L.M. (author), TNO Kwaliteit van Leven (author)

Insulin is an important inhibitor of both hepatic glucose output and hepatic VLDL-triglyceride (VLDL-TG) production. We investigated whether both processes are equally sensitive to insulin-mediated inhibition. To test this, we used euglycemic clamp studies with four increasing plasma concentrations of insulin in wild-type C57Bl/6 mice. By...

article 2006

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Ghrelin differentially affects hepatic and peripheral insulin sensitivity in mice

Heijboer, A.C. (author), van den Hoek, A.M. (author), Parlevliet, E.T. (author), Havekes, L.M. (author), Romijn, J.A. (author), Pijl, H. (author), Corssmit, E.P.M. (author), TNO Kwaliteit van Leven (author)

Aims/hypothesis: This study was conducted to evaluate the effects of ghrelin on insulin's capacity to suppress endogenous glucose production and promote glucose disposal in mice. To establish whether the growth hormone secretagogue (GHS) receptor can mediate the putative effect of ghrelin on the action of insulin, we also determined the...

article 2006

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The effect of moderate alcohol consumption on fat distribution and adipocytokines

Beulens, J.W.J. (author), van Beers, R.M. (author), Stolk, R.P. (author), Schaafsma, G. (author), Hendriks, H.F.J. (author), TNO Kwaliteit van Leven (author)

Objective: To investigate the effect of moderate alcohol consumption on fat distribution, adipose tissue secreted proteins (adiponectin and resistin), and insulin sensitivity in healthy middle-aged men with abdominal obesity. Research Methods and Procedures: Thirty-four healthy men between 35 and 70 years old, with increased waist circumference ...

article 2006

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Intracerebroventricular administration of melanotan II increases insulin sensitivity of glucose disposal in mice

Heijboer, A.C. (author), van den Hoek, A.M. (author), Pijl, H. (author), Voshol, P.J. (author), Havekes, L.M. (author), Romijn, J.A. (author), Corssmit, E.P.M. (author), TNO Kwaliteit van Leven (author)

Aims/hypothesis: The present study was conducted to evaluate the effects of central administration of melanotan II (MTII), a melanocortin-3/4 receptor agonist, on hepatic and whole-body insulin sensitivity, independent of food intake and body weight. Methods: Over a period of 24 h, 225 ng of MTII was injected in three aliquots into the left...

article 2005

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Acute hepatic steatosis in mice by blocking β-oxidation does not reduce insulin sensitivity of very-low-density lipoprotein production

TNO Kwaliteit van Leven (author), Grefhorst, A. (author), Hoekstra, J. (author), Derks, T.G.J. (author), Ouwens, D.M. (author), Baller, J.F.W. (author), Havinga, R. (author), Havekes, L.M. (author), Romijn, J.A. (author), Kuipers, F. (author)

Accumulation of triglycerides (TG) in the liver is generally associated with hepatic insulin resistance. We questioned whether acute hepatic steatosis induced by pharmacological blockade of β-oxidation affects hepatic insulin sensitivity, i.e., insulin-mediated suppression of VLDL production and insulin-induced activation of phosphatidylinositol...

article 2005