Effects of endotoxin on pacemaker funny current in HEK 293 cells
نویسندگان
چکیده
منابع مشابه
Hyperpolarization-Activated ‘Pacemaker Current’ — A Funny Current in Models of SA Nodal Pacemaker Cells
A typical feature of sinoatrial (SA) nodal pacemaker cells is the presence of an ionic current that activates upon hyperpolarization. The contribution of this hyperpolarization-activated current, If, which is also known as the ‘funny current’ or ‘pacemaker current’, to the spontaneous pacemaker activity of SA nodal cells remains a matter of intense debate. We used experimentally recorded action...
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The inhalation anesthetic isoflurane has been reported to induce caspase activation and apoptosis, which may lead to learning and memory impairment. However, the underlying mechanisms of these effects are largely unknown. Isoflurane has been shown to induce elevation of cytosol calcium levels, accumulation of reactive oxygen species (ROS), opening of the mitochondrial permeability transition po...
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The present study investigated the effects of equol on cardiovascular K+ channel currents. The cardiovascular K+ channel currents were determined in HEK 293 cells stably expressing cloned differential cardiovascular K+ channels with conventional whole-cell patch voltage-clamp technique. We found that equol inhibited hKv1.5 (IC50: 15.3 μM), hKv4.3 (IC50: 29.2 μM and 11.9 μM for hKv4.3 peak curre...
متن کاملThe role of the funny current in pacemaker activity.
Abstract: Pacemaking is a basic physiological process, and the cellular mechanisms involved in this function have always attracted the keen attention of investigators. The "funny" (I(f)) current, originally described in sinoatrial node myocytes as an inward current activated on hyperpolarization to the diastolic range of voltages, has properties suitable for generating repetitive activity and f...
متن کاملThe ethics of HEK 293.
1 Congregation for the Doctrine of the Faith, Donum vitae (February 2, 1987), Introduction, 5. 2 Ibid., I, 1. The topic of embryonic stem cells is very much in the forefront of public interest. The moral stance on obtaining stem cells from embryos is clear: The Church has always taught that all human life from the very beginning must be respected and protected. If human embryos are killed to ob...
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ژورنال
عنوان ژورنال: Critical Care
سال: 2011
ISSN: 1364-8535
DOI: 10.1186/cc9663