자료유형
전체 선택해제
총 125건 검색
본문검색 결과만 보기
-
Gintonin facilitates catecholamine secretion from the perfused adrenal medulla
Seung-YeolNa, Ki-HwanKim, Mi-SungChoi, Kang-SuHa, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.6 9 629-639 (11 pages)
The present study was designed to investigate the characteristics of gintonin, one of components isolated from Korean Ginseng on secretion of catecholamines (CA) from the isolated perfused model of rat adrenal gland and to clarify its mechanism of action. Gintonin (1 to 30 μg/ml), perfused into an adrenal vein, markedly increased the CA secretion from the perfused rat adrenal medulla in a dose-dependent fashion. The gintonin-evoked CA secretion was greatly inhibited in the presence of... -
Contradictory Effects of Superoxide and Hydrogen Peroxide on KCa3.1 in Human Endothelial Cells
ShinkyuChoi, Hye-YoungNa, JiAeeKim, Sung-EunCho, SukHyoSuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.3 1 181-187 (7 pages)
Reactive oxygen species (ROS) are generated in various cells, including vascular smooth muscle and endothelial cells, and regulate ion channel functions. KCa3.1 plays an important role in endothelial functions. However, the effects of superoxide and hydrogen peroxide radicals on the expression of this ion channel in the endothelium remain unclear. In this study, we examined the effects of ROS donors on KCa3.1 expression and the K＋ current in primary cultured human umbilical vein endothelial... -
Influence of Fimasartan (a Novel AT1 Receptor Blocker) on Catecholamine Release in the Adrenal Medulla of Spontaneously Hypertensive Rats
Hyo-JeongLim, Seog-KiLee, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.1 14 99-109 (11 pages)
The aim of this study was to determine whether fimasartan, a newly developed AT1 receptor blocker, can affect the CA release in the isolated perfused model of the adrenal medulla of spontaneously hypertensive rats (SHRs). Fimasartan (5∼50 ՌM) perfused into an adrenal vein for 90 min produced dose- and time-dependently inhibited the CA secretory responses evoked by ACh (5.32 mM), high K＋ (56 mM, a direct membrane depolarizer), DMPP (100 ՌM) and McN-A-343 (100 ՌM). Fimasartan... -
Inhibitory Effects of Olmesartan on Catecholamine Secretion from the Perfused Rat Adrenal Medulla
Hyo-JeongLim, Sang-YongKim, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.4 7 241-248 (8 pages)
The present sutdy aimed to determine whether olmesartan, an angiotensin II (Ang II) type 1 (AT1) receptor blocker, can influence the CA release from the isolated perfused model of the rat adrenal medulla. Olmesartan (5∼50ՌM) perfused into an adrenal vein for 90 min produced dose- and time-dependent inhibition of the CA secretory responses evoked by ACh (5.32 mM), high K＋ (56 mM, a direct membrane-depolarizer), DMPP (100ՌM) and McN-A-343 (100ՌM). Olmesartan did not affect... -
A Carbohydrate Fraction, AIP1, from Artemisia Iwayomogi Reduces the Action Potential Duration by Activation of Rapidly Activating Delayed Rectifier K＋ Channels in Rabbit Ventricular Myocytes
WonSunPark, YounKyoungSon, EunAKo, SeongWooChoi, NariKim, Tae-HoonChoi, HyunJooYoun, Su-HyunJo, DaHyeHong, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.3 1 119-125 (7 pages)
We investigated the effects of a hot-water extract of Artemisia iwayomogi, a plant belonging to family Compositae, on cardiac ventricular delayed rectifier K＋ current (IK) using the patch clamp technique. The carbohydrate fraction AIP1 dose-dependently increased the heart rate with an apparent EC50 value of 56.1±5.5Ռg/ml. Application of AIP1 reduced the action potential duration (APD) in concentration-dependent fashion by activating IK without significantly altering the resting membrane... -
Calcium Sensitization Induced by Sodium Fluoride in Permeabilized Rat Mesenteric Arteries
EnyueYang, JoonYongCho, UyDongSohn, InKyeomKim, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.1 8 51-57 (7 pages)
It was hypothesized that NaF induces calcium sensitization in Ca2＋-controlled solution in permeabilized rat mesenteric arteries. Rat mesenteric arteries were permeabilized with Ղ- escin and subjected to tension measurement. NaF potentiated the concentration-response curves to Ca2＋ (decreased EC50 and increased Emax). Cumulative addition of NaF (4.0, 8.0 and 16 mM) also increased vascular tension in Ca2＋-controlled solution at pCa 7.0 or pCa 6.5, but not at pCa 8.0. NaF-induced... -
Polyphenols of Rubus coreanum Inhibit Catecholamine Secretion from the Perfused Adrenal Medulla of SHRs
Byung-SikYu, Duck-MiNa, Mi-YoungKang, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 17 517-526 (10 pages)
The present study was attempted to investigate whether polyphenolic compounds isolated from wine, which is brewed from Rubus coreanum Miquel (PCRC), may affect the release of catecholamines (CA) from the isolated perfused adrenal medulla of the spontaneously hypertensive rats (SHRs), and to establish its mechanism of action. PCRC (20∼180Ռg/ml) perfused into an adrenal vein for 90 min relatively dose-dependently inhibited the CA secretory responses to ACh (5.32 mM), high K＋ (56 mM), DMPP... -
Effects of Losartan on Catecholamine Release in the Isolated Rat Adrenal Gland
Hae-JeongNoh, Yoon-SungKang, Dong-YoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.4 10 327-335 (9 pages)
The aim of this study was to determine whether losartan, an angiotensin II (Ang II) type 1 (AT1) receptor could influence the CA release from the isolated perfused model of the rat adrenal medulla. Losartan (5∼50</SUB>ՌM) perfused into an adrenal vein for 90 min produced dose- and time-dependent inhibition of the CA secretory responses evoked by ACh (5.32 mM), high K＋ (56 mM, a direct membrane depolarizer), DMPP (100ՌM) and McN-A-343 (100ՌM). Losartan failed to affect...
