Evidence map›Paper›PMID 37488800›Full record

ArticleNan fang yi ke da xue xue bao = Journal of Southern Medical University2023

[Characterization of metabotropic glutamate receptor 7 and 8 in rat superior cervical ganglion and their changes following chronic intermittent hypoxia].

X Wei, C Li, C Zhao, B Zhao, Y Liu

Open access · greenAbstract readEnglish Abstract
In one paragraph

Article in Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

X WeiHenan Key Laboratory of Neural Regeneration, First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, China.
C LiHenan Key Laboratory of Neural Regeneration, First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, China.
C ZhaoHenan Key Laboratory of Neural Regeneration, First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, China.
B ZhaoDepartment of Theoretic Surgery, First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, China.
Y LiuHenan Key Laboratory of Neural Regeneration, First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, China.
First Affiliated Hospital of Xinxiang Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the expression and localization of metabotropic glutamate receptors 7 and 8 (mGluR7/8) in rat superior cervical ganglion (SCG) and their changes in response to chronic intermittent hypoxia (CIH).

methodsWe detected the expressions of mGluR7 and mGluR8 in the SCG of 8-week-old male SD rats using immunohistochemistry and characterized their distribution with immunofluorescence staining. The expression of mGluR7 and mGluR8 in the cytoplasm and nucleus was detected using Western blotting. A 6-week CIH rat model was established by exposure to intermittent hypoxia (6% oxygen for 30 s followed by normoxia for 4 min) for 8 h daily, and the changes in systolic blood pressure, diastolic blood pressure and mean arterial pressure were measured. The effect of CIH on expression levels of mGluR7 and mGluR8 in the SCG was analyzed using Western blotting.

resultsPositive expressions of mGluR7 and mGluR8 were detected in rat SCG. mGluR7 was distributed in the neurons and small fluorescent (SIF) cells with positive staining in both the cytoplasm and nuclei, but not expressed in satellite glial cells (SGCs), nerve fibers or blood vessels; mGluR8 was localized in the cytoplasm of neurons and SIF cells, but not expressed in SGCs, nerve fibers, or blood vessels. Western blotting of the nuclear and cytoplasmic fractions of rat SCG further confirmed that mGluR7 was expressed in both the cytoplasm and the nucleus, while mGluR8 exists only in the cytoplasm. Exposure to CIH significantly increased systolic blood pressure, diastolic blood pressure and mean arterial pressure of the rats (all

conclusionmGluR7 and mGluR8 are present in rat SCG but with different localization patterns. CIH increases blood pressure of rats and enhanced protein expressions of mGluR7 and mGluR8 in rat SCG.

Indexed as

Receptors, Metabotropic GlutamateSuperior Cervical GanglionAnimalsHypoxiaMaleRatsRats, Sprague-Dawleymetabotropic glutamate receptor 7Receptors, Metabotropic Glutamatechronic intermittent hypoxiahypertensionmetabotropicglutamatereceptors 7metabotropicglutamatereceptors 8superior cervical ganglion

Identifiers

PMID37488800
PMCPMC10366511
OpenAlexW4385230090

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.