Caffeine inhibits hypothalamic A 1 R to excite oxytocin neuron and ameliorate dietary obesity in mice
Caffeine, an antagonist of the adenosine receptor A R, is used as a dietary supplement to reduce body weight, although the underlying mechanism is unclear. Here, we report that adenosine level in the cerebrospinal fluid, and hypothalamic expression of A R, are increased in the diet-induced obesity (...
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Published in | Nature communications Vol. 8; p. 15904 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
27.06.2017
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Abstract | Caffeine, an antagonist of the adenosine receptor A
R, is used as a dietary supplement to reduce body weight, although the underlying mechanism is unclear. Here, we report that adenosine level in the cerebrospinal fluid, and hypothalamic expression of A
R, are increased in the diet-induced obesity (DIO) mouse. We find that mice with overexpression of A
R in the neurons of paraventricular nucleus (PVN) of the hypothalamus are hyperphagic, have glucose intolerance and high body weight. Central or peripheral administration of caffeine reduces the body weight of DIO mice by the suppression of appetite and increasing of energy expenditure. We also show that caffeine excites oxytocin expressing neurons, and blockade of the action of oxytocin significantly attenuates the effect of caffeine on energy balance. These data suggest that caffeine inhibits A
Rs expressed on PVN oxytocin neurons to negatively regulate energy balance in DIO mice. |
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AbstractList | Caffeine, an antagonist of the adenosine receptor A
R, is used as a dietary supplement to reduce body weight, although the underlying mechanism is unclear. Here, we report that adenosine level in the cerebrospinal fluid, and hypothalamic expression of A
R, are increased in the diet-induced obesity (DIO) mouse. We find that mice with overexpression of A
R in the neurons of paraventricular nucleus (PVN) of the hypothalamus are hyperphagic, have glucose intolerance and high body weight. Central or peripheral administration of caffeine reduces the body weight of DIO mice by the suppression of appetite and increasing of energy expenditure. We also show that caffeine excites oxytocin expressing neurons, and blockade of the action of oxytocin significantly attenuates the effect of caffeine on energy balance. These data suggest that caffeine inhibits A
Rs expressed on PVN oxytocin neurons to negatively regulate energy balance in DIO mice. |
Author | Lu, Youming Pan, Susu Meng, Jia Chen, Zhuo Zhu, Ling-Qiang Wu, Liufeng Zhang, Yi Shen, Qing Huang, Yuan Zhang, Guo |
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R, is used as a dietary supplement to reduce body weight, although the underlying mechanism is unclear.... |
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SubjectTerms | Animals Caffeine - administration & dosage Caffeine - metabolism Diet, High-Fat - adverse effects Energy Metabolism Glucose - metabolism Humans Hypothalamus - metabolism Leptin - metabolism Male Mice Mice, Inbred C57BL Neurons - metabolism Obesity - diet therapy Obesity - etiology Obesity - genetics Obesity - metabolism Oxytocin - metabolism Paraventricular Hypothalamic Nucleus - metabolism Purinergic P1 Receptor Antagonists - metabolism Receptors, Purinergic P1 - genetics Receptors, Purinergic P1 - metabolism |
Title | Caffeine inhibits hypothalamic A 1 R to excite oxytocin neuron and ameliorate dietary obesity in mice |
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