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Sabtu, 18 Juni 2011
Food Reward: a Dominant Factor in Obesity, Part VI
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Reward Centers can Modify the Body Fat Setpoint
Dopamine is a neurotransmitter (chemical that signals between neurons) that is a central mediator of reward and motivation in the brain. It has been known for decades that dopamine injections into the brain suppress food intake, and that this is due primarily to its action in the hypothalamus, which is the main region that regulates body fatness (1). Dopamine-producing neurons from reward centers contact neurons in the hypothalamus that regulate body fatness (2). I recently came across a paper by a researcher named Dr. Hanno Pijl, from Leiden University in the Netherlands (3). The paper is a nice overview of the evidence linking dopamine signaling with body fatness via its effects on the hypothalamus, and I recommend it to any scientists out there who want to read more about the concept.
Read more »
Dopamine is a neurotransmitter (chemical that signals between neurons) that is a central mediator of reward and motivation in the brain. It has been known for decades that dopamine injections into the brain suppress food intake, and that this is due primarily to its action in the hypothalamus, which is the main region that regulates body fatness (1). Dopamine-producing neurons from reward centers contact neurons in the hypothalamus that regulate body fatness (2). I recently came across a paper by a researcher named Dr. Hanno Pijl, from Leiden University in the Netherlands (3). The paper is a nice overview of the evidence linking dopamine signaling with body fatness via its effects on the hypothalamus, and I recommend it to any scientists out there who want to read more about the concept.
Read more »
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