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81.

Intrinsic Gating in Inward Rectifier Potassium Channels (Kir2.1) with Low Polyamine Affinity Generated by Site Directed Mutagenesis

ISo, , IAshmole, HSoh, CSPark, PJSpencer, MLeyl, PRStanfield, 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.3 3 131-142 (12 pages)

ISo, , IAshmole, HSoh, CSPark, PJSpencer, MLeyl, PRStanfield, 저
...
- 4,100원
We have studied mutant forms of Kir2.1 in which an aspartate residue (D172), important for gating by intracellular polyamines, is replaced by one of three basic residues (Arg, Lys or His). Such channels are highly selective for K+, but show inward rectification that is a shallow function of voltage compared with that found in wild type. This inward rectification occurs with a reduced affinity for spermine and persists in the absence of polyamines. Though the unitary current-voltage relation...
82.

Dietary Ascorbate Supplementation Reduces Oxidative Tissue Damage and Expression of iNOS in the Kidney of Streptozotocin Induced Diabetic Rats

MyungSeoupChoi, YoonYoungJang, WooSeungLee, JinHoSong, YongKyooShin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.1 8 39-45 (7 pages)

MyungSeoupChoi, YoonYoungJang, WooSeungLee, JinHoSong, YongKyooShin 저
...
- 3,000원
Reactive oxygen species (ROS) have been suggested to be contributory factors in complications of diabetes mellitus. In the present study, we investigated the generation of superoxide, the lipid peroxide level measured as thiobarbituric acid reactive substances, the vasorelaxation of isolated thoracic aorta and the iNOS expression in kidney of streptozotocin induced diabetic rats. Sprague Dawley rats were divided into four groups: control, ascorbate (400 mg/kg rat weight daily in drinking water),...
83.

Overexpressed Mitochondrial Thioredoxin Protects PC12 Cells from Hydrogen Peroxide and Serum-deprivation

Yun-SongLee, Seung-AYu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.1 7 33-37 (5 pages)

Yun-SongLee, Seung-AYu 저
...
- 1,500원
conserved active site, Cys-X-X-Cys. Whereas biological and physiological properties of Trx1 are well characterized, significance of mitochondrial thioredoxin (Trx2) is not well known. Therefore, we addressed physiological role of Trx2 in PC12 cells under oxidative stress. In PC12 cells, transiently overexpressed Trx2 significantly reduced cell death induced by hydrogen peroxide, whereas mutant Trx2, having serine residues instead of two cysteine residues at the active site did not. In addition,...
84.

Molecular Mechanism of Pancreatic Bicarbonate Secretion

MinGooLee, JeWooKim, KyungHwanKim, ShmuelMuallem 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.3 1 131-138 (8 pages)

MinGooLee, JeWooKim, KyungHwanKim, ShmuelMuallem 저
...
- 3,000원
Thanks to recent progress in availability of molecular and functional techniques it became possible to search for the basic molecular and cellular processes that mediate and control HCO3⁣ and fluid secretion by the pancreatic duct. The coordinated action of various transporters on the luminal and basolateral membranes of polarized epithelial cells mediates the transepithelial HCO3⁣ transport, which involves HCO3⁣ absorption in the resting state and HCO3⁣ secretion in the...
85.

Activation of ATP-sensitive Potassium Channels by the Predominant Metabolite of Isoflurane in Rabbit Ventricular Myocytes

JinHan, NariKim, EuiyongKim, SungjuKim, KangheeCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.2 7 165-175 (11 pages)

JinHan, NariKim, EuiyongKim, SungjuKim, KangheeCho 저
...
- 4,000원
Background: Recent in vivo experimental evidence suggests that isoflurane-induced cardioprotection may involve KATP channel activation. However, it was demonstrated that isoflurane inhibited KATP channel activities in the inside-out patch mode. To explain this discrepancy, the present investigation tested the hypothesis that a metabolite of isoflurane, trifluoroacetic acid (TFA), contributes to isoflurnae-induced cardioprotection via KATP channel activation during myocardial ischemia and...
86.

N-Type Calcium Channels

KeithS.Elmslie 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.6 12 525-530 (6 pages)

KeithS.Elmslie 저
...
- 3,000원
of the different calcium channels have similar kinetic properties. This review uses the N-type calcium channel to illustrate the difficulties in identifying and characterizing calcium channels in neurons. It shows that the discovery of toxins that can specifically block single calcium channel types has made it possible to easily and rapidly discern the physiological roles of the different calcium channels in the neuron. Without these toxins it is unlikely that progress would have been as rapid.
87.

Effect of Sedative Dose of Propofol on Neuronal Damage after Transient Forebrain Ischemia in Mongolian Gerbils

Seong-RyongLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.1 10 73-79 (7 pages)

Seong-RyongLee 저
...
- 3,000원
This study investigated whether propofol, an intravenous, non-barbiturate anesthetic, could reduce brain damage following global forebrain ischemia. Transient global ischemia was induced in gerbils by occlusion of bilateral carotid arteries for 3 min. Propofol (50 mg/kg) was administered intraperitoneally 30 min before, immediately after, and at 1 h, 2 h, 6 h after occlusion. Thereafter, propofol was administered twice daily for three days. Treated animals were processed in parallel with...
88.

Role of K+ Channels to Resting Membrane Potential of Rabbit Middle Cerebral Arterial Smooth Muscle Cells

NariKim, JinHan, EuiyongKim, Yun-HeeKim, Jae-HongSim, Soo-CheonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.6 2 547-554 (8 pages)

NariKim, JinHan, EuiyongKim, Yun-HeeKim, Jae-HongSim, Soo-CheonKim 저
...
- 3,000원
The aim of the present study is to investigate the contribution of Ca2⁢-activated K⁢ (KCa) channels and delayed rectifier K⁢ (KV) channels to the resting membrane potential (RMP) in rabbit middle cerebral arterial smooth muscle cells. The RMP and membrane currents were recorded using the whole-cell patch configuration and single KCa channel was recorded using the outside-out patch configuration. Using the pipette solution containing 0.05 mM EGTA, the RMP was...
89.

Moderate Elevation of Extracellular K+ Concentration Induces Vasorelaxation in Isolated Rat, Rabbit and Human Cerebral Arteries Role of Na Pump and Ba-Sensitive Process

DongHoKim, SungJoonKim, SangJinLee, SungJinPark, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.6 7 705-714 (10 pages)

DongHoKim, SungJoonKim, SangJinLee, SungJinPark, KiWhanKim 저
...
- 3,000원
a tension equivalent to 55 mmHg). High K⁢ (125 mM) and PGF2α (1∼10 ㄍM) induced concentration-dependent contractions in all 3 species, while histamine (10∼50 ㄍM) evoked contraction only in the rabbits and induced relaxation in the rats and humans. Addition of K⁢ (2∼10 mM) to the control solution induced vasorelaxations. These effects were inhibited by the pretreatment with both ouabain (10 ㄍM) and Ba2⁢ (0.1∼0.3 mM) in the rat, but only with ouabain (10...
90.

Protective Mechanism of Nitric Oxide and Mucus against Ischemia/ Reperfusion-Induced Gastric Mucosal Injury

HyeyoungKim, KwangsooNam, KyungHwanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.4 13 511-519 (9 pages)

HyeyoungKim, KwangsooNam, KyungHwanKim 저
...
- 3,000원
This study investigated the role of nitric oxide on the oxidative damage in gastric mucosa of rats which received ischemia/reperfusion and its relation to mucus. Nitric oxide synthesis modulators such as L-arginine and NG-nitro-L-arginine methyl ester, and sodium nitroprusside, a nitric oxide donor, were injected intraperitoneally to the rats 30 min prior to ischemia/reperfusion which was induced by clamping the celiac artery and the superior mesenteric artery for 30 min and reperfusion for 1...

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