Abstract:
:Atherosclerosis and its fatal complications, such as myocardial infarction or stroke, represent the most common cause of morbidity or mortality in modern world. It was observed that an excess of reactive oxygen species (ROS) accompanies atherosclerosis. Under physiological circumstances, intracellular H+ accumulates and cell membrane depolarizes during ROS production, rendering ROS generation self-limiting and thus avoiding oxidative stress. However, the persistent production of ROS during atherosclerosis suggests that the physiologically self-limiting ROS-generating process was somehow disrupted and there may be an as-yet unknown mechanism supporting unlimited ROS generation. We thus postulated that an outward H+ conductance, which can efficiently export H+ from the cytosol and maintain membrane potential, may play a crucial role during atherosclerosis. So far, Hv1 channels were mainly found in immune cells (macrophages, neutrophils). As large quantities of vascular infiltrating macrophages exist, we proposed that Hv1-mediated oxidative stress promoted excessive ROS production and the formation of foam cells, contributing to atherosclerosis. In addition, we could not exclude the possibility that Hv1 channels may be upregulated in vascular cells under atherosclerotic conditions, which may also exert effects on vascular inflammation and fibrous cap formation. The present study will employ Hv1 knockout mice in combination with in vitro studies to explore the role of Hv1 channel in atherosclerosis and dissect the underlying mechanisms. The results are expected to offer novel insights into the pathogenesis of atherosclerosis as well as clues for developing novel therapeutic avenues.
journal_name
Med Hypothesesjournal_title
Medical hypothesesauthors
Zheng Z,Zhang Z,Wang Mdoi
10.1016/j.mehy.2020.109724subject
Has Abstractpub_date
2020-08-01 00:00:00pages
109724eissn
0306-9877issn
1532-2777pii
S0306-9877(20)30361-3journal_volume
141pub_type
杂志文章abstract::On March 11, 2020, the World Health Organization declared the coronavirus outbreak a pandemic. Since December 2019, the world has experienced an outbreak of coronavirus disease 2019 (COVID-19). Epidemiology, risk factors, and clinical characteristics of patients with COVID-19 have been reported but the factors affecti...
journal_title:Medical hypotheses
pub_type: 杂志文章
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journal_title:Medical hypotheses
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journal_title:Medical hypotheses
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journal_title:Medical hypotheses
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journal_title:Medical hypotheses
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journal_title:Medical hypotheses
pub_type: 社论
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journal_title:Medical hypotheses
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journal_title:Medical hypotheses
pub_type: 杂志文章
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journal_title:Medical hypotheses
pub_type: 杂志文章
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journal_title:Medical hypotheses
pub_type: 杂志文章
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journal_title:Medical hypotheses
pub_type: 杂志文章
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更新日期:2015-07-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(95)90131-0
更新日期:1995-03-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
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更新日期:2003-04-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2012.12.042
更新日期:2013-04-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.2001.1520
更新日期:2002-05-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2020.109872
更新日期:2020-10-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2019.109249
更新日期:2019-08-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(95)90193-0
更新日期:1995-07-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/s0306-9877(96)90016-x
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2006.10.041
更新日期:2007-01-01 00:00:00
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journal_title:Medical hypotheses
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更新日期:2019-10-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章,评审
doi:10.1016/j.mehy.2012.02.018
更新日期:2012-06-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/0306-9877(85)90029-5
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2009.02.013
更新日期:2009-08-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2003.12.030
更新日期:2004-01-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1016/j.mehy.2006.07.003
更新日期:2007-01-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 杂志文章
doi:10.1054/mehy.2000.1176
更新日期:2001-05-01 00:00:00
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journal_title:Medical hypotheses
pub_type: 社论
doi:10.1016/j.mehy.2007.07.006
更新日期:2008-01-01 00:00:00