Evidence map›Paper›PMID 40673297›Full record

ArticleNan fang yi ke da xue xue bao = Journal of Southern Medical University2025

Heat stress affects expression levels of circadian clock gene Bmal1 and cyclins in rat thoracic aortic endothelial cells.

Xiaoyu Chang, Hanwen Zhang, Hongting Cao, Ling Hou, Xin Meng, Hong Tao, Yan Luo, Guanghua Li

Abstract read
In one paragraph

Article in Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2025. 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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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Xiaoyu ChangSchool of Public Health, Zhaoqing Medical College, Zhaoqing 526020, China.
Hanwen ZhangSchool of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China, Zhaoqing Medical College, Zhaoqing 526020, China.
Hongting CaoSchool of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China, Zhaoqing Medical College, Zhaoqing 526020, China.
Ling HouSchool of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China, Zhaoqing Medical College, Zhaoqing 526020, China.
Xin MengSchool of Public Health, Zhaoqing Medical College, Zhaoqing 526020, China.
Hong TaoSchool of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China, Zhaoqing Medical College, Zhaoqing 526020, China.
Yan LuoSchool of Basic Medicine Sciences, Zhaoqing Medical College, Zhaoqing 526020, China.
Guanghua LiSchool of Public Health, Zhaoqing Medical College, Zhaoqing 526020, China.

Funding

Natural Science Foundation of Ningxia Hui Autonomous Region 2023AAC03218 and 2023AAC03237
6 · The paper itself

Abstract

objectivesTo investigate the structural changes of rat thoracic aorta and changes in expression levels of Bmal1 and cyclins in thoracic aorta endothelial cells following heat stress.

methodsTwenty male SD rats were randomized equally into control group and heat stress group. After exposure to 32 ℃ for 2 weeks in the latter group, the rats were examined for histopathological changes and Bmal1 expression in the thoracic aorta using HE staining and immunohistochemistry. In the cell experiments, cultured rat thoracic aortic endothelial cells (RTAECs) were incubated at 40 ℃ for 12 h with or without prior transfection with a Bmal1-specific small interfering RNA (si-Bmal1) or a negative sequence. In both rat thoracic aorta and RTAECs, the expressions of Bmal1, the cell cycle proteins CDK1, CDK4, CDK6, and cyclin B1, and apoptosis-related proteins Bax and Bcl-2 were detected using Western blotting. TUNEL staining was used to detect cell apoptosis in rat thoracic aorta, and the changes in cell cycle distribution and apoptosis in RTAECs were analyzed with flow cytometry.

resultsCompared with the control rats, the rats exposed to heat stress showed significantly increased blood pressures and lowered heart rate with elastic fiber disruption and increased expressions of Bmal1, cyclin B1 and CDK1 in the thoracic aorta (

conclusionsHeat stress upregulates Bmal1 expression and causes alterations in expressions of cyclins to trigger apoptosis of rat thoracic aorta endothelial cells, which can be partly alleviated by suppressing Bmal1 expression.

Indexed as

Aorta, ThoracicARNTL Transcription FactorsCyclinsEndothelial CellsHeat-Shock ResponseAnimalsApoptosisbcl-2-Associated X ProteinCDC2 Protein KinaseCells, CulturedCyclin B1MaleRatsRats, Sprague-DawleyRNA, Small InterferingArntl protein, ratARNTL Transcription Factorsbcl-2-Associated X ProteinCcnb1 protein, ratCDC2 Protein KinaseCdk1 protein, ratCyclin B1CyclinsRNA, Small InterferingapoptosisBmal1circadian clock genescyclinsheat stressthoracic aortic endothelial cells

Identifiers

PMID40673297
PMCPMC12268923

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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.