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Reduced stress- and...
Reduced stress- and cold-induced increase in energy expenditure in interleukin-6-deficient mice.
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- Wernstedt, Ingrid, 1978 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry
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- Edgley, Amanda (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Institute of Medicine, Department of Molecular and Clinical Medicine
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- Berndtsson, Anna, 1979 (författare)
- Gothenburg University,Göteborgs universitet,Wallenberglaboratoriet,Institutionen för neurovetenskap och fysiologi, sektionen för fysiologi,Wallenberg Laboratory,Institute of Neuroscience and Physiology, Department of Physiology
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- Fäldt, Jenny, 1971 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för fysiologi,Wallenberglaboratoriet,Institute of Neuroscience and Physiology, Department of Physiology,Wallenberg Laboratory
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- Bergström, Göran, 1964 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Institute of Medicine, Department of Molecular and Clinical Medicine
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- Wallenius, Ville, 1970 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för fysiologi,Wallenberglaboratoriet,Institute of Neuroscience and Physiology, Department of Physiology,Wallenberg Laboratory
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- Jansson, John-Olov, 1954 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för fysiologi,Wallenberglaboratoriet,Institute of Neuroscience and Physiology, Department of Physiology,Wallenberg Laboratory
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(creator_code:org_t)
- American Physiological Society, 2006
- 2006
- Engelska.
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Ingår i: American journal of physiology. Regulatory, integrative and comparative physiology. - : American Physiological Society. - 0363-6119 .- 1522-1490. ; 291:3
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Interleukin-6 (IL-6) deficient (-/-) mice develop mature onset obesity. Pharmacological studies have shown that IL-6 has direct lipolytic effects and when administered centrally increases sympathetic outflow. However, the metabolic functions of endogenous IL-6 are not fully elucidated. We aimed to investigate the effect of IL-6 deficiency with respect to cold exposure and cage-switch stress, that is, situations that normally increase sympathetic outflow. Energy metabolism, core temperature, heart rate, and activity were investigated in young preobese IL-6-/- mice by indirect calorimetry together with telemetry. Baseline measurements and the effect of cage-switch stress were investigated at thermoneutrality (30 degrees C) and at room temperature (20 degrees C). The effect of cold exposure was investigated at 4 degrees C. At 30 degrees C, the basal core temperature was 0.6 +/- 0.24 degrees C lower in IL-6-/- compared with wild-type mice, whereas the oxygen consumption did not differ significantly. The respiratory exchange ratio at 20 degrees C was significantly higher and the calculated fat utilization rate was lower in IL-6-/- mice. In response to cage-switch stress, the increase in oxygen consumption at both 30 and 20 degrees C was lower in IL-6-/- than in wild-type mice. The increase in heart rate was lower in IL-6-/- mice at 30 degrees C. At 4 degrees C, both the oxygen consumption and core temperature were lower in IL-6-/- compared with wild-type mice, suggesting a lower cold-induced thermogenesis in IL-6-/- mice. The present results indicate that endogenous IL-6 is of importance for stress- and cold-induced energy expenditure in mice.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Fysiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Physiology (hsv//eng)
Nyckelord
- Animals
- Cold Temperature
- Energy Metabolism
- genetics
- physiology
- Female
- Interleukin-6
- deficiency
- genetics
- metabolism
- Male
- Mice
- Mice
- Knockout
- Norepinephrine
- blood
- Stress
- Physiological
- physiopathology
- Thermogenesis
- physiology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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