ArticleFrontiers in cellular neuroscience2014
Glutamic acid decarboxylase 67 expression by a distinct population of mouse vestibular supporting cells.
Article in Frontiers in cellular neuroscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 24 citations in OpenAlex.
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- Comparison of ventromedial hypothalamic nucleus growth hormone-releasing hormone neuron counterregulatory neurochemical marker gene expression in young adult versus middle-aged male and female rats.IBRO neuroscience reports · 2025Article
- AAV9-mediated KCC2 upregulation enhances functional recovery following cervical spinal cord injury.Communications biology · 2025Article
- Tonic Dopamine Sensing Reveals a D2/D3 Mediated Dopamine Response to Raclopride in ClockΔ19 Mice Model.Research square · 2025Article
- Ventromedial hypothalamic nucleus neuronal nitric oxide knockdown effects on GABAergic neuron metabolic sensor and transmitter marker gene expression in the male rat.BMC neuroscience · 2025Article
- Glucose transporter-2 regulation of VMN GABA neuron metabolic sensor and transmitter gene expression.Scientific reports · 2024Article
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- GHRH Neurons from the Ventromedial Hypothalamic Nucleus Provide Dynamic and Sex-Specific Input to the Brain Glucose-Regulatory Network.Neuroscience · 2023Article
- Experimental and Clinical Biomarkers for Progressive Evaluation of Neuropathology and Therapeutic Interventions for Acute and Chronic Neurological Disorders.International journal of molecular sciences · 2022Review
- Single-cell multiplex qPCR evidence for sex-dimorphic glutamate decarboxylase, estrogen receptor, and 5'-AMP-activated protein kinase alpha subunit mRNA expression by ventromedial hypothalamic nucleus GABAergic neurons.Journal of chemical neuroanatomy · 2022Article
- Activation of GABAJournal of neurophysiology · 2020Article
- Developmental GAD2 Expression Reveals Progenitor-like Cells with Calcium Waves in Mammalian Crista Ampullaris.iScience · 2020Article
- Spontaneous and Acetylcholine Evoked Calcium Transients in the Developing Mouse Utricle.Frontiers in cellular neuroscience · 2019Article
Corrections and comments
- Erratum issued
Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The function of the enzyme glutamate decarboxylase (GAD) is to convert glutamate in γ-aminobutyric acid (GABA). Glutamate decarboxylase exists as two major isoforms, termed GAD65 and GAD67, that are usually expressed in GABA-containing neurons in the central nervous system. GAD65 has been proposed to be associated with GABA exocytosis whereas GAD67 with GABA metabolism. In the present immunofluorescence study, we have investigated the presence of the two GAD isoforms in the semicircular canal cristae of wild type and GAD67-GFP knock-in mice. While no evidence for GAD65 expression was found, GAD67 was detected in a distinct population of peripherally-located supporting cells, but not in hair cells or in centrally-located supporting cells. GABA, on the other hand, was found in all supporting cells. The present result indicate that only a discrete population of supporting cells use GAD67 to synthesize GABA. This is the first report of a marker that allows to distinguish two populations of supporting cells in the vestibular epithelium. On the other hand, the lack of GABA and GAD enzymes in hair cells excludes its involvement in afferent transmission.
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