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& Korach 2006 , Heldring et al . 2007 , Wiik et al . 2009 ). Estradiol stimulates insulin sensitivity and enhances glucose tolerance in skeletal muscle of adult mice ( Gao et al . 2006 , Lundholm et al . 2008 , Riant et al . 2009 ) and protects
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sensitivity Androgen sensitivity in the male mice was determined following castration to remove the endogenous source of androgens and treatment with fixed androgen levels produced by dihydrotestosterone (DHT) implants (DHT clamp; Simanainen et al . (2011
Laboratory Animal Center, Nantong University, Nantong, Jiangsu, China
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School of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing, Jiangsu, China
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Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
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the top and average levels shown at the bottom. Data presented as mean ± s.e.m. * P < 0.05, ** P < 0.01 and *** P < 0.001 by two-tailed t -test. Improved glucose metabolism and insulin sensitivity in MAGED1 KO mice Activation of
Cell Biology and Immunology Group, Wageningen University, Marijkeweg 40, 6709 PG, Wageningen, The Netherlands
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Cell Biology and Immunology Group, Wageningen University, Marijkeweg 40, 6709 PG, Wageningen, The Netherlands
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Cell Biology and Immunology Group, Wageningen University, Marijkeweg 40, 6709 PG, Wageningen, The Netherlands
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Cell Biology and Immunology Group, Wageningen University, Marijkeweg 40, 6709 PG, Wageningen, The Netherlands
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-inflammatory properties of GCs make them a first-choice medication for asthma ( Walsh 2005 ) and rheumatoid arthritis ( Boers 2004 ). However, there is considerable individual variation in sensitivity to GCs ( Hearing et al. 1999 ), which may affect the outcome of GC
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Hypothalamic Integration Mechanisms, Netherlands Institute for Neuroscience, Amsterdam, the Netherlands
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Introduction The prevalence of type 2 diabetes mellitus (T2DM), associated with obesity, is taking epidemic proportions. The molecular drivers involved in the pathogenesis of lower insulin sensitivity in obesity include, but are not limited to
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exert varying effects on insulin sensitivity measured under hyperinsulinaemic-euglycaemic clamp conditions ( Storlien et al. 1987 ). Much research has been fat-focused and concentrated on the association of ectopic lipid with the development of insulin
Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Centro de Biología Molecular ‘Severo Ochoa’, Facultad de Ciencias, Universidad Autónoma, Campus de Cantoblanco, 28049 Madrid, Spain
Area de Bioquímica, Facultad de Químicas, Centro Regional de Investigaciones Biomédicas (CRIB), Universidad de Castilla La Mancha, 13071 Ciudad Real, Spain
Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
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Introduction Ageing is associated with a moderate decrease in peripheral insulin sensitivity in humans ( De Fronzo 1981 , Fink et al. 1983 , Rowe et al. 1983 ) and rodents ( Goodman et al. 1983 , Narimiya et al. 1984
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SUMMARY
Insulin sensitivity was increased in rats treated for 21 days with mebanazine, 10mg./kg., phenelzine, 30mg./kg., or tranylcypromine, 10 mg./kg. but not in rats treated with isonicotinic acid hydrazide, 10 mg./kg., for 21 days or in animals treated with a single injection of mebanazine, 10 mg./kg. Pargyline, 14 mg./kg., given for 21 days produced 83% inhibition of hepatic monoamineoxidase and had a hypoglycaemic action when compared with 0·15 mg. mebanazine/kg., a dose just less than that required to inhibit monoamineoxidase. Increased insulin sensitivity seemed to be related to chronic inhibition of monoamineoxidase rather than to administration of hydrazine derivatives.
There was a tendency to anorexia during the drug treatment, but rats treated with monoamineoxidase inhibitors gained less weight than pair-fed control animals. This could be due to the previously reported reduction in growth hormone activity during treatment with monoamineoxidase inhibitors; nevertheless, any explanation for the increase in insulin sensitivity should be based upon the monoamineoxidase-inhibiting action of these drugs.
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insulin sensitivity. First, high levels of galanin receptors are found in the skeletal muscle and adipose tissue of rats ( Li et al . 2004 ), i.e. the key sites involved in regulating glucose disposal and insulin sensitivity. Second, diabetic rats have an
Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada
Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada
Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
Banting & Best Diabetes Centre, Toronto, Ontario, Canada
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Banting & Best Diabetes Centre, Toronto, Ontario, Canada
Department of Physiology, University of Toronto, Toronto, Ontario, Canada
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Department of Physiology, University of Toronto, Toronto, Ontario, Canada
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with those used in humans to understand the translatability of metabolic tests. Determining insulin sensitivity and glucose metabolism in vivo Glucose tolerance test The glucose tolerance test (GTT) assesses the response (i.e. circulating