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GROUP | CONDITION | SAMPLES |
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Hypothalamic neurons |
GSM4391955 GSM4391956 GSM4391957 GSM4391958
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GSM4391959 GSM4391961 GSM4391962
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Submission Date: Mar 06, 2020
Summary: Background: Brain glucose-sensing neurons detect glucose fluctuations and prevent severe hypoglycemia, but mechanisms mediating functions of these glucose-sensing neurons are unclear.
Methods: We combined mouse genetics, electrophysiology, neural tracing, optogenetics and Patch-RNA-seq to demonstrate how glucose-sensing neurons in the ventrolateral VMH regulate glucose balance.
Results: Here we report that estrogen receptor-α (ERα)-expressing neurons in the ventrolateral subdivision of the ventromedial hypothalamic nucleus (vlVMH) are glucose-sensing neurons to a 5-1-5mM glucose fluctuation, being glucose-inhibited neurons (GI-ERαvlVMH) or glucose-excited neurons (GE-ERαvlVMH). Hypoglycemia activates GI-ERαvlVMH neurons via the anoctamin 4 channel, and inhibits GE-ERαvlVMH neurons through opening the ATP-sensitive potassium channel. Further, we show that GI-ERαvlVMH neurons preferentially project to the medioposterior arcuate nucleus of the hypothalamus (mpARH) and GE-ERαvlVMH neurons preferentially project to the dorsal Raphe nuclei (DRN). Activation of ERαvlVMH-mpARH circuit and inhibition of ERαvlVMH-DRN circuit both increase blood glucose.
Conclusions: Our results indicate that ERαvlVMH neurons detect glucose fluctuations and prevent severe hypoglycemia in mice.
GEO Accession ID: GSE146543
PMID: No Pubmed ID
Submission Date: Mar 06, 2020
Summary: Background: Brain glucose-sensing neurons detect glucose fluctuations and prevent severe hypoglycemia, but mechanisms mediating functions of these glucose-sensing neurons are unclear.
Methods: We combined mouse genetics, electrophysiology, neural tracing, optogenetics and Patch-RNA-seq to demonstrate how glucose-sensing neurons in the ventrolateral VMH regulate glucose balance.
Results: Here we report that estrogen receptor-α (ERα)-expressing neurons in the ventrolateral subdivision of the ventromedial hypothalamic nucleus (vlVMH) are glucose-sensing neurons to a 5-1-5mM glucose fluctuation, being glucose-inhibited neurons (GI-ERαvlVMH) or glucose-excited neurons (GE-ERαvlVMH). Hypoglycemia activates GI-ERαvlVMH neurons via the anoctamin 4 channel, and inhibits GE-ERαvlVMH neurons through opening the ATP-sensitive potassium channel. Further, we show that GI-ERαvlVMH neurons preferentially project to the medioposterior arcuate nucleus of the hypothalamus (mpARH) and GE-ERαvlVMH neurons preferentially project to the dorsal Raphe nuclei (DRN). Activation of ERαvlVMH-mpARH circuit and inhibition of ERαvlVMH-DRN circuit both increase blood glucose.
Conclusions: Our results indicate that ERαvlVMH neurons detect glucose fluctuations and prevent severe hypoglycemia in mice.
GEO Accession ID: GSE146543
PMID: No Pubmed ID
Signatures:
Control Condition
Perturbation Condition
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This pipeline enables you to analyze and visualize your bulk RNA sequencing datasets with an array of downstream analysis and visualization tools. The pipeline includes: PCA analysis, Clustergrammer interactive heatmap, library size analysis, differential gene expression analysis, enrichment analysis, and L1000 small molecule search.