Prader-Willi Syndrome (PWS) is a neurodevelopmental disorder causing social and learning deficits, impaired satiety and severe childhood obesity. Genetic underpinning of PWS involves deletion of a chromosomal region with several genes, including MAGEL2, which is abundantly expressed in the hypothalamus. Of appetite regulating hypothalamic cell types, both AGRP and POMC-expressing neurons contain Magel2 transcripts but the functional impact of its deletion on these cells has not been fully characterized. Here, we investigated these key neurons in Magel2-null mice in terms of the activity levels at different energy states as well as their behavioral function. Using cell type specific ex vivo electrophysiological recordings and in vivo chemogenetic activation approaches we evaluated impact of Magel2 deletion on AGRP and POMC-neuron induced changes in appetite. Our results suggest that POMC neuron activity profile as well as its communication with downstream targets is significantly compromised, while AGRP neuron function with respect to short term feeding is relatively unaffected in Magel2 deficiency.
Pharmacology, Toxicology and Pharmaceutical Science
3
7%
Agricultural and Biological Sciences
3
7%
Other
3
7%
Unknown
18
42%
Attention Score in Context
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 June 2018.
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#17,978,863
of 23,090,520 outputs
Outputs from Human Molecular Genetics
#7,125
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Outputs of similar age
#238,447
of 329,782 outputs
Outputs of similar age from Human Molecular Genetics
#81
of 96 outputs
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