Hypothalamic detection of macronutrients via multiple gut-brain pathways

N Goldstein, AD McKnight, JRE Carty, M Arnold… - Cell metabolism, 2021 - cell.com
Food intake is tightly regulated by complex and coordinated gut-brain interactions. Nutrients
rapidly modulate activity in key populations of hypothalamic neurons that regulate food …

[HTML][HTML] Nutritive, post-ingestive signals are the primary regulators of AgRP neuron activity

Z Su, AL Alhadeff, JN Betley - Cell reports, 2017 - cell.com
The brain regulates food intake by processing sensory cues and peripheral physiological
signals, but the neural basis of this integration remains unclear. Hypothalamic, agouti …

AgRP neurons can increase food intake during conditions of appetite suppression and inhibit anorexigenic parabrachial neurons

RA Essner, AG Smith, AA Jamnik, AR Ryba… - Journal of …, 2017 - Soc Neuroscience
To maintain energy homeostasis, orexigenic (appetite-inducing) and anorexigenic (appetite
suppressing) brain systems functionally interact to regulate food intake. Within the …

Palatability can drive feeding independent of AgRP neurons

RGP Denis, A Joly-Amado, E Webber, F Langlet… - Cell metabolism, 2015 - cell.com
Feeding behavior is exquisitely regulated by homeostatic and hedonic neural substrates that
integrate energy demand as well as the reinforcing and rewarding aspects of food …

Obesity causes selective and long-lasting desensitization of AgRP neurons to dietary fat

LR Beutler, TV Corpuz, JS Ahn, S Kosar, W Song… - Elife, 2020 - elifesciences.org
Body weight is regulated by interoceptive neural circuits that track energy need, but how the
activity of these circuits is altered in obesity remains poorly understood. Here we describe …

Hunger-promoting AgRP neurons trigger an astrocyte-mediated feed-forward autoactivation loop in mice

L Varela, B Stutz, JE Song, JG Kim… - The Journal of …, 2021 - Am Soc Clin Investig
Hypothalamic feeding circuits have been identified as having innate synaptic plasticity,
mediating adaption to the changing metabolic milieu by controlling responses to feeding …

Dynamics of gut-brain communication underlying hunger

LR Beutler, Y Chen, JS Ahn, YC Lin, RA Essner… - Neuron, 2017 - cell.com
Communication between the gut and brain is critical for homeostasis, but how this
communication is represented in the dynamics of feeding circuits is unknown. Here we …

Direct modulation of GFAP-expressing glia in the arcuate nucleus bi-directionally regulates feeding

N Chen, H Sugihara, J Kim, Z Fu, B Barak, M Sur… - Elife, 2016 - elifesciences.org
Multiple hypothalamic neuronal populations that regulate energy balance have been
identified. Although hypothalamic glia exist in abundance and form intimate structural …

Hypothalamic control of interoceptive hunger

JN Siemian, MA Arenivar, S Sarsfield, Y Aponte - Current Biology, 2021 - cell.com
While energy balance is critical to survival, many factors influence food intake beyond
caloric need or" hunger." Despite this, some neurons that drive feeding in mice are routinely …

Astrocytes control food intake by inhibiting AGRP neuron activity via adenosine A1 receptors

L Yang, Y Qi, Y Yang - Cell reports, 2015 - cell.com
It is well recognized that feeding behavior in mammals is orchestrated by neurons within the
medial basal hypothalamus. However, it remains unclear whether food intake is also under …