Cited by 413Regulation of Appetite and ObesityPancreatic function and diabetesNeuroscience and Neuropharmacology Research

Synaptic glutamate release by ventromedial hypothalamic neurons is part of the neurocircuitry that prevents hypoglycemia

Open access
Tong, Qingchun, Ye, ChianPing, McCrimmon, Rory J., Dhillon, Harveen, Choi, Brian, Kramer, Melissa D., Yu, Jia, Yang, Zongfang +8 more·2007·Cell Metabolism

Abstract

The importance of neuropeptides in the hypothalamus has been experimentally established. Due to difficulties in assessing function in vivo, the roles of the fast-acting neurotransmitters glutamate and GABA are largely unknown. Synaptic vesicular transporters (VGLUTs for glutamate and VGAT for GABA) are required for vesicular uptake and, consequently, synaptic release of neurotransmitters. Ventromedial hypothalamic (VMH) neurons are predominantly glutamatergic and express VGLUT2. To evaluate the role of glutamate release from VMH neurons, we generated mice lacking VGLUT2 selectively in SF1 neurons (a major subset of VMH neurons). These mice have hypoglycemia during fasting secondary to impaired fasting-induced increases in the glucose-raising pancreatic hormone glucagon and impaired induction in liver of mRNAs encoding PGC-1alpha and the gluconeogenic enzymes PEPCK and G6Pase. Similarly, these mice have defective counterregulatory responses to insulin-induced hypoglycemia and 2-deoxyglucose (an antimetabolite). Thus, glutamate release from VMH neurons is an important component of the neurocircuitry that functions to prevent hypoglycemia.

Integrity signals

Registry

Crossref · 10.1016/j.cmet.2007.04.001

Cites

62 of 62 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Tong, Q., Ye, C., McCrimmon, R. J., Dhillon, H., Choi, B., Kramer, M. D., Yu, J., Yang, Z., Christiansen, L. M., Lee, C. E., Choi, C. S., Zigman, J. M., Shulman, G. I., Sherwin, R. S., Elmquist, J. K., & Lowell, B. B.
Affiliations
  • Beth Israel Deaconess Medical Center (US)
  • Yale University (US)
  • The University of Texas Southwestern Medical Center (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Lowell, Bradford B.
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2007-05
Volume
5
Issue
5
Pages
383-393
ISSN
1550-4131 (ISSN-L)
OpenAlex
W1995998852
Cited by
413
References
62
Citations by year
2026: 10 · 2025: 20 · 2024: 32 · 2023: 23 · 2022: 23 · 2021: 30 · 2020: 22 · 2019: 10 · 2018: 25 · 2017: 27 · 2016: 16 · 2015: 19 · 2014: 20 · 2013: 26 · 2012: 27
FWCI
7.89
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Discovery Research Portal (University of Dundee) (submittedVersion)
Funders
  • American Diabetes Association Research Foundation
  • Richard and Susan Smith Family Foundation
  • Boston Area Diabetes Endocrinology Research Center
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK057521, P01DK56116, R01DK071051, P01DK056116, P30DK046200, R01DK040936, R01DK071320, U24DK059635, DK071320, R01DK069831, R01DK072409, R37DK020495)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
ventromedial hypothalamus, glutamate release, VGLUT2, glucagon, hypoglycemia, insulin-induced hypoglycemia, PGC-1α, gluconeogenesis, phosphoenolpyruvate carboxykinase, glucose-6-phosphatase, 2-deoxyglucose, hypothalamic neurons, glucose homeostasis
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Animals, Electrophysiology, Glucagon, Glucose-6-Phosphatase, Hypoglycemia, Hypothalamus, Insulin, Liver, Mice, Transgenic, Neurons, Synapses, Transcription Factors, Trans-Activators, In Situ Hybridization, Glutamic Acid, Vesicular Glutamate Transport Protein 2, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review