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Roles of Non-cholinergic Intrapancreatic Nerves, Serotonergic Nerves, on Pancreatic Exocrine Secretion in the Isolated Perfused Rat Pancreas
ZhengerJiang, Bich-NaShin, In-HyeKim, HyunJooLee, Jun-HwanYong, Min-JaeLee, Moo-HoWon, Yun-LyulLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.5 9 307-312 (6 pages)
of urethane. The median line and the abdominal aorta was carefully dissected and cannulated with PE-50 tubing just above the celiac artery, and then tightly ligated just below the superior mesenteric artery. The pancreatic duct was also cannulated with Tygon microbore tubing. With the addition of serotonin, pancreatic volume flow and amylase output were significantly inhibited electrical field stimulation (EFS). On the other hand, pancreatic volume flow and amylase output were significantly... -
Possible Involvement of Ca2＋ Activated K＋ Channels, SK Channel, in the Quercetin-Induced Vasodilatation
SeiichiroNishida, HiroyasuSatoh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.5 5 361-365 (5 pages)
a kind of flavonoids, on the vasodilating actions were investigated. Among the mechanisms for quercetin-induced vasodilatation in rat aorta, the involvement with the Ca2＋ activated K＋ (KCa) channel was examined. Pretreatment with NE (5ՌM) or KCl (60 mM) was carried out and then, the modulation by quercetin of the constriction was examined using rat aorta ring strips (3 mm) at 36.5oC. Quercetin (0.1 to 100ՌM) relaxed the NE-induced vasoconstrictions in a concentration- dependent... -
Effects of Cl Channel Blockers on the Cardiac ATP-sensitive K+ Channel
Yong-GeunKwak 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.3 8 305-313 (9 pages)
To explore whether Cl channel blockers interact with the ATP-sensitive K (KATP) channel, I have examined the effect of two common Cl channel blockers on the KATP channel activity in isolated rat ventricular myocytes using patch clamp techniques. In inside-out patches, 4,4'-diisothio-cyanatostilbene- 2,2'-disulfonic acid (DIDS) and niflumic acid applied to bath solution inhibited the KATP channel activity in a concentration-dependent manner with IC50 of 0.24 and 927μM,... -
Increase of L-type Calcium Current by cGMP-dependent Protein Kinase Regulates in Rabbit Ventricular Myocytes
JinHan, NariKim, EuiyongKim, WonkyungHo, YungEEarm, HankyounKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 10 733-742 (10 pages)
Background: We have previously reported that not only cGMP but also 8-Br-cGMP or 8-pCPT-cGMP, specific and potent stimulators of cGMP-dependent protein kinase (cGMP-PK), increased basal L-type calcium current (ICa) in rabbit ventricular myocytes. Our findings in rabbit ventricular myocytes were entirely different from the earlier findings in different species, suggesting that the activation of cGMP-PK is involved in the facilitation of ICa by cGMP. However, there is no direct evidence that... -
Mechanism of Vasoactive Intestinal Polypeptide-Induced Catecholamine Secretion from the Rat Adrenal Medulla
Dong-YoonLim, Jae-BongHeo, Cheol-HeeChoi, Geon-HanLim, Yong-GyoonLee, Song-HoonOh, Il-SikKim, Jong-InKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.4 6 443-454 (12 pages)
The present study was attempted to investigate the effect of vasoactive intestinal polypeptide (VIP) on secretion of catecholamines (CA) and to establish whether there is the existence of a noncholinergic mechanism in adrenomedullary CA secretion from the isolated perfused rat adrenal gland. The perfusion into an adrenal vein of VIP (3⁓106 M) for 5 min or the injection of acetylcholine (ACh, 5.32⁓103 M) resulted in great increases in CA secretion. Tachyphylaxis to... -
뇌의 허혈-재관류손상에 대한 연구: 혈소판활성인자의 관련
이원석(Won-Suk Lee), 임병용(Byung-Yong Rhim), 홍기환(Ki-Whan Hong) 대한약리학회 대한약리학잡지 8 Pages
대한약리학회 대한약리학잡지 1993, 제 29권 제 1호 1 1-8 (8 pages)
뇌의 허혈-재관류 손상에 있어서 혈소판 활성인자 (PAF, platelet activating factor)의 관련을 증명하기 위하여 흰쥐와 생쥐에서 양측 총경동맥을 10분간 결찰하고 그후 6시간동안 재관류시켜 허혈-재관류 손상을 야기시켰다. 생쥐에 PAF 길항제인 BN52021과 CV6209 (각각 1 mg/kg, i.p.)를 총경동맥결찰 10분전 또는 재관류 시작 1시간 후에 투여시 McGram stroke index는 심하게 억제되었다. 흰쥐와 생쥐에서 뇌허혈-재관류에 의한 뇌수분함량의 증가는 BN52021 또는 CV6209 전처치에 의하여 유의하게 억제되었다. BN52021 전처치는... -
간문맥 고혈압 고양이에서 비-간 교감신경성 반사의 변동에 대한 연구
송환규(Hwan Kyu Song), 임병용(Byung Yong Rhim), 김치대(Chi Dae Kim), 홍기환(Ki Whan Hong) 대한약리학회 대한약리학잡지 10 Pages
대한약리학회 대한약리학잡지 1987, 제 23권 제 1호 3 15-24 (10 pages)
만성 간문맥 고혈압에 동반하는 내장 충혈에 대한 발생 기전을 규명하기 위하여 고양이의 간문맥을 결찰하고 그 경과에 따라 비 -간 교감 신경성 반사 흥분의 변동과 동시에 순환 역동학적 변동을 관찰하였다. 1. 대조 고양이 (Sham 수술군)에서 비동맥을 통하여 capsaicin, bradykinin 및 vasopressin을 주사 하였을 매에는 전신 동맥압의 반사 흥분뿐만 아니라 비정맥압의 상승을 초래하였다. 그러나 심박동수는 변화가 없었다. 동시에 비장(비-비 반사) 및 간장 (비 -간 반사)에서 교감 신경의 만사 흥분을 일으켰다. 2. Capsaicin을... -
혈관 긴장도 조절에 미치는 Na-K Pump에 관한 연구
김기환(Kim, Ki-Whan), 김전(Kim, Jun) 대한생리학회 대한생리학회지 12 Pages
대한생리학회 대한생리학회지 1982, 제 16권 제 1호 1 1-12 (12 pages)
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Inhibition of Pacemaker Activity of Interstitial Cells of Cajal by Hydrogen Peroxide via Activating ATP-sensitive K+ Channels
SeokChoi, ShankarPrasadParajuli, HyeonSookCheong, DilliParasadPaudyal, CheolHoYeum, PyungJinYoon, JaeYeoulJun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.1 3 15-20 (6 pages)
To investigate whether hydrogen peroxide (H2O2) affects intestinal motility, pacemaker currents and membrane potential were recorded in cultured interstitial cells of Cajal (ICC) from murine small intestine by using a whole-cell patch clamp. In whole cell patch technique at 30oC, ICC generated spontaneous pacemaker potential under current clamp mode (I=0) and inward currents (pacemaker currents) under voltage clamp mode at a holding potential of 70 mV. When ICC were treated with H2O2 in...
