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Showing 1-30 of 38 results for "N8161" within Papers
Ken Lee et al.
European journal of pharmacology, 818, 30-37 (2017-10-21)
To explore the roles of various K
Abbie C Johnson et al.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 40(4), 845-859 (2019-05-16)
We investigated the effect of chronic hypertension on hippocampal arterioles (HippAs) and hippocampal perfusion as underlying mechanisms of memory impairment, and how large artery stiffness relates to HippA remodeling. Using male spontaneously hypertensive rats (SHR) and normotensive Wistar rats (n = 12/group)
Abbie C Johnson et al.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 37(8), 2857-2869 (2016-11-07)
We investigated the effect of experimental preeclampsia on hyperemia during seizure in the hippocampus and vascular function and structure of hippocampal arterioles using Sprague Dawley rats (n = 14/group) that were nonpregnant, pregnant (d20), or had experimental preeclampsia (induced by a high
Jackson T Fontaine et al.
Mechanisms of ageing and development, 192, 111389-111389 (2020-11-01)
Vascular cognitive impairment, the second most common cause of dementia, profoundly affects hippocampal-dependent functions. However, while the growing literature covers complex neuronal interactions, little is known about the sustaining hippocampal microcirculation. Here we examined vasoconstriction to physiological pressures of hippocampal
Nobuaki Takeshita et al.
Journal of pain research, 14, 23-34 (2021-01-21)
Although abnormal peripheral and central pain processing has been observed in fibromyalgia (FM) patients, the biomechanics and pathophysiology, surrounding the peripheral mechanism are not well understood. An intermediate conductance channel, KCa3.1, is expressed in peripheral sensory nerve fibers where it
Fan-Fan Li et al.
Placenta, 58, 9-16 (2017-10-01)
Excessive constriction of placental chorionic plate arteries (CPAs) may be associated with preeclampsia (PE). Nitric oxide (NO) as well as intermediate and small Ca The location of IK IK This study provides evidence that dysregulated IK
Janice M Diaz-Otero et al.
American journal of physiology. Heart and circulatory physiology, 315(5), H1304-H1315 (2018-08-18)
Hypertension and mineralocorticoid receptor activation cause cerebral parenchymal arteriole remodeling; this can limit cerebral perfusion and contribute to cognitive dysfunction. We used a mouse model of angiotensin II-induced hypertension to test the hypothesis that mineralocorticoid receptor activation impairs both transient
Monika Kloza et al.
Vascular pharmacology, 99, 65-73 (2017-10-19)
The aim of this study was to examine the influence of deoxycorticosterone acetate-salt (DOCA-salt) hypertension and chronic treatment with the fatty acid amide hydrolase inhibitor, URB597, on small and intermediate conductance calcium-activated potassium channels and endothelium-dependent hyperpolarization (K
Jensen, B.S., et al.
Abstr. Soc. Neurosci, 2003, 367-367 null
Zheng-Da Pang et al.
Biochemical pharmacology, 183, 114337-114337 (2020-11-14)
The opening of endothelial small-conductance calcium-activated potassium channels (KCa2.3) is essential for endothelium-dependent hyperpolarization (EDH), which predominantly occurs in small resistance arteries. Adenosine monophosphate-activated protein kinase (AMPK), an important metabolic regulator, has been implicated in regulating endothelial nitric oxide synthase
Melike Hacer Ozkan et al.
Basic & clinical pharmacology & toxicology, 122(6), 570-576 (2017-12-27)
Endothelial IKCa and/or SKCa channels play an important role in the control of vascular tone by participating in endothelium-dependent relaxation. Whether β-AR antagonists, mainly used in hypertension, affect endothelial KCa channel function is unknown. In this study, we examined the
Ning Li et al.
International urology and nephrology, 49(7), 1147-1155 (2017-04-19)
Overactive bladder (OAB), usually accompanied by partial bladder outlet obstruction (PBOO), is associated with detrusor overactivity (DO) which is related to the increased urinary bladder smooth muscle (UBSM) cells excitability. Small-conductance Ca Cystometry indicated that DO was achieved 2 weeks
Feifei Ge et al.
Molecular psychiatry, 26(3), 941-954 (2019-04-14)
Sleep is essential to emotional health. Sleep disturbance, particularly REM sleep disturbance, profoundly impacts emotion regulation, but the underlying neural mechanisms remain elusive. Here we show that chronic REM sleep disturbance, achieved in mice by chronic sleep fragmentation (SF), enhanced
Brandon M Brown et al.
Molecular pharmacology, 92(4), 469-480 (2017-08-02)
Intermediate-conductance (K
Yuhong Liu et al.
Journal of the American Heart Association, 4(8), e002062-e002062 (2015-08-26)
Diabetes is associated with coronary arteriolar endothelial dysfunction. We investigated the role of the small/intermediate (SK(Ca)/IK(Ca)) conductance of calcium-activated potassium channels in diabetes-related endothelial dysfunction. Coronary arterioles (80 to 150 μm in diameter) were dissected from discarded right atrial tissues
Keisuke Kawasaki et al.
SLAS discovery : advancing life sciences R & D, 24(6), 641-652 (2019-02-26)
Two-pore domain K+ (K2P) channels are thought to be druggable targets. However, only a few agents specific for K2P channels have been identified, presumably due to the lack of an efficient screening system. To develop a new high-throughput screening (HTS)
Ning Li et al.
International urology and nephrology, 49(1), 17-26 (2016-11-16)
Partial bladder outlet obstruction (PBOO) usually induces overactive bladder (OAB) associated with detrusor overactivity (DO) which is related to the increased contractility of detrusor smooth muscle (DSM). The pharmacological activation of small-conductance Ca Two weeks after surgically inducing PBOO in
Pedarzani, P., et al.
Abstr. Soc. Neurosci, 367-367 (2003)
Siu-Lung Chan et al.
Acta physiologica (Oxford, England), 225(2), e13181-e13181 (2018-08-29)
Adaptive responses of brain parenchymal arterioles (PAs), a target for cerebral small vessel disease, to chronic cerebral hypoperfusion are largely unknown. Previous evidence suggested that transient receptor potential vanilloid 4 channels may be involved in the regulation of cerebrovascular tone.
Takunori Seki et al.
Hypertension (Dallas, Tex. : 1979), 69(1), 143-153 (2016-11-23)
Endothelium-dependent hyperpolarization (EDH)-mediated responses are impaired in hypertension, but the underlying mechanisms have not yet been determined. The activation of small- and intermediate-conductance of Ca2+-activated K+ channels (SKCa and IKCa) underpins EDH-mediated responses. It was recently reported that Ca2+ influx
Yan Wang et al.
Experimental cell research, 383(2), 111552-111552 (2019-08-16)
Elevated plasma free fatty acids level has been implicated in the development of insulin resistance, inflammation, and endothelial dysfunction in diabetic and nondiabetic individuals. However, the underlying mechanisms still remain to be defined. Herein, we investigated the effect of palmitic
Takayuki Matsumoto et al.
European journal of pharmacology, 807, 151-158 (2017-04-24)
Endothelium-derived hyperpolarization (EDH) is an important signaling mechanism of endothelium-dependent vasorelaxation, and little attention has been paid to the EDH-type responses in female metabolic syndrome such as that observed with type-2 diabetes. We previously reported that EDH-type relaxation was impaired
Zhiqi Zhang et al.
The Journal of thoracic and cardiovascular surgery, 160(6), e263-e280 (2020-03-23)
To investigate coronary endothelial protection of a small-conductance calcium-activated potassium (SK) channel activator against a period of cardioplegic-hypoxia and reoxygenation (CP-H/R) injury in mice and patients with diabetes (DM) and those without diabetes (nondiabetic [ND]). Mouse small coronary arteries/heart endothelial
Matteo Ottolini et al.
The Journal of physiology, 598(17), 3577-3596 (2020-05-29)
Endothelial cell TRPV4 (TRPV4EC ) channels exert a dilatory effect on the resting diameter of resistance mesenteric and pulmonary arteries. Functional intermediate- and small-conductance K+ (IK and SK) channels and endothelial nitric oxide synthase (eNOS) are present in the endothelium
Jun Hou et al.
International urology and nephrology, 52(10), 1851-1861 (2020-05-14)
Overactive bladder (OAB) is related to detrusor overactivity (DO), which is caused by the increased detrusor smooth muscle (DSM) cells excitability. Small-conductance Ca2+-activated K+ (SK) channels is a fundamental regulator of excitability and contractility in DSM cells. Obesity-related OAB is
Cara C Rada et al.
American journal of physiology. Endocrinology and metabolism, 307(10), E935-E943 (2014-09-25)
Proper placental perfusion is essential for fetal exchange of oxygen, nutrients, and waste with the maternal circulation. Impairment of uteroplacental vascular function can lead to pregnancy complications, including preeclampsia and intrauterine growth restriction (IUGR). Potassium channels have been recognized as
Beate Knauer et al.
Hippocampus, 29(9), 817-835 (2019-02-23)
The hippocampal formation plays a role in mnemonic tasks and epileptic discharges in vivo. In vitro, these functions and malfunctions may relate to persistent firing (PF) and depolarization block (DB), respectively. Pyramidal neurons of the CA1 field have previously been
Monika Kloza et al.
International journal of molecular sciences, 20(17) (2019-08-28)
The aim of this study was to investigate the hemodynamic effects of SKA-31, an activator of the small (KCa2.x) and intermediate (KCa3.1) conductance calcium-activated potassium channels, and to evaluate its influence on endothelium-derived hyperpolarization (EDH)-KCa2.3/KCa3.1 type relaxation in isolated endothelium-intact
Mario A Arias-García et al.
Frontiers in systems neuroscience, 7, 63-63 (2013-10-11)
The firing of striatal projection neurons (SPNs) exhibits afterhyperpolarizing potentials (AHPs) that determine discharge frequency. They are in part generated by Ca(2+)-activated K(+)-currents involving BK and SK components. It has previously been shown that suprathreshold corticostriatal responses are more prolonged
Yuhong Liu et al.
Molecular and cellular biochemistry, 445(1-2), 187-194 (2018-01-07)
We have recently found that diabetes is associated with the inactivation of the calcium-activated potassium channels (KCa) in endothelial cells, which may contribute to endothelial dysfunction in diabetic patients at baseline. In the current study, we further investigated the effects
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