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201.

Role of Stretch-Activated Channels in Stretch-Induced Changes of Electrical Activity

JaeBoumYoum, Su-HyunJo, ChaeHunLeem, Won-KyungHo, YungE. 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.1 6 33-41 (9 pages)

JaeBoumYoum, Su-HyunJo, ChaeHunLeem, Won-KyungHo, YungE. 저
...
- 3,000원
We developed a cardiac cell model to explain the phenomenon of mechano-electric feedback (MEF), based on the experimental data with rat atrial myocytes. It incorporated the activity of ion channels, pumps, exchangers, and changes of intracellular ion concentration. Changes in membrane excitability and Ca2⁢ transients could then be calculated. In the model, the major ion channels responsible for the stretch-induced changes in electrical activity were the stretch-activated channels (SACs)....
202.

Decreased Expression of PTEN in Olfactory Bulb of Rat Pub after Naris Closure

JaeyoungCho, Sang-HyunLee, GeonHeeLee, WanjooChun, Yee-TaePark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 4 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.1 3 17-20 (4 pages)

JaeyoungCho, Sang-HyunLee, GeonHeeLee, WanjooChun, Yee-TaePark 저
...
- 1,500원
PTEN (phosphatase and tensin homolog) is a dual specific phosphatase antagonizing phosphoinositide 3-kinase activity, and has first been cloned as a tumor suppressor for glioma. Although the role of PTEN as a tumor suppressor has been well studied, little is known about signaling mechanisms regulating expression and/or activity of PTEN in the central nervous system. In this study, we investigated whether PTEN expression is regulated by sensory deprivation. P5 rat pups were unilaterally...
203.

Cooperation of Gβ and Gαq Protein in Contractile Response of Cat Lower Esophageal Sphincter (LES)

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

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.6 9 349-355 (7 pages)

UyDongSohnTaiSangLee 저
...
- 3,000원
We previously shown that LES contraction depends on M3 receptors linked to PTX insensitive Gq protein and activation of PLC. This results in production of IP3, which mediates calcium release, and contraction through a CaM dependent pathway. In the esophagus ACh activates M2 receptors linked to PTX sensitive Gi3 protein, resulting in activation of PLD, presumably, production of DAG. We investigated the role of PLC isozymes which can be activated by Gq or Gβ protein on ACh-induced contraction in...
204.

Sympathetic Regulation of Aquaporin Water Channels in Rat Kidney

JongUnLee, KwangjayYoo, YoonWhaOh, DongYoonLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.3 10 181-185 (5 pages)

JongUnLee, KwangjayYoo, YoonWhaOh, DongYoonLim 저
...
- 1,500원
of AQP1-4 proteins in the denervated kidneys was determined. The content of norepinephrine was found significantly decreased following the denervation. Accordingly, the expression of AQP2 proteins was markedly decreased. The expression of AQP3 and AQP4 was also slightly but significantly decreased, while that of AQP1 was not. Neither the basal nor the AVP-stimulated accumulation of cAMP was significantly affected in the denervated kidney. It is suggested that the sympathetic nervous system has a...
205.

Effects of Noradrenaline on the Membrane Potential of Prostatic Neuroendocrine Cells of Rat

JunHeeKim, SunYoungShin, Dae-YongUhm, SungJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.1 9 47-52 (6 pages)

JunHeeKim, SunYoungShin, Dae-YongUhm, SungJoonKim 저
...
- 3,000원
The prostate gland contains numerous neuroendocrine cells that are believed to influence the function of the prostate gland. Our recent study demonstrated the expression of both α1- and α2-ARs, signaling the release of stored Ca2⁢ and the inhibition of N-type Ca2⁢ channels, respectively, in rat prostate neuroendocrine cells (RPNECs). In this study, the effects of NA on the resting membrane potential (RMP) of RPNECs were investigated using a whole-cell patch clamp method. Fresh...
206.

Ceramide is involved in MPP+-induced Cytotoxicity in Human Neuroblastoma Cells

Eun-JooNam, Hye-SookLee, YoungJaeLee, Wan-SeokJoo, SunghoMaeng, Hye-InIm, Chan-WoongPark, YongSikKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.6 1 281-286 (6 pages)

Eun-JooNam, Hye-SookLee, YoungJaeLee, Wan-SeokJoo, SunghoMaeng, Hye-InIm, Chan-WoongPark, YongSikKim 저
...
- 3,000원
To understand the cytotoxic mechanism of MPP⁢, we examined the involvement of ceramide in MPP⁢- induced cytotoxicity to human neuroblastoma SH-SY5Y cells. When SH-SY5Y cells were exposed to MPP⁢, MPP⁢ induced dose-dependent cytotoxicity accompanied by 2-fold elevation of intracellular ceramide levels in SH-SY5Y cells. Three methods were used to test the hypothesis that the elevated intracellular ceramide is related to MPP⁢-induced cytotoxicity: C2-ceramide was...
207.

A Role of Mitogen Activated Protein Kinases and Inflammatory Responses in Gender Differences in Kidney Ischemia Injury

KwonMooParkHoJaeHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.3 5 155-160 (6 pages)

KwonMooParkHoJaeHan 저
...
- 3,000원
It is not known whether gender differences play a role in susceptibility to ischemic acute renal failure. Thus, we examined if there were any differences in susceptibility between male and female mice to kidney ischemic injury, and if so, whether it is due to differences in mitogen activated protein kinases (MAPKs) or inflammatory responses to ischemia. Female mice were protected against kidney ischemia when compared with males. Thirty minutes of bilateral ischemia resulted in marked functional...
208.

Effects of Central GABA and Glutamate on Blood Pressure and Single Unit Spikes in the RVLM of Rats

JaeSikPark, ZeeIhnLee, JaeHeeJang, DongKukAhn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.3 4 149-154 (6 pages)

JaeSikPark, ZeeIhnLee, JaeHeeJang, DongKukAhn 저
...
- 3,000원
A glass microelectode was inserted into the rostral ventrolateral medulla (RVLM) for recording single unit spikes. Barosensitive neurons were identified by changes of single unit spikes in RVLM following intravenous injection of nitroprusside and phenylephrine. The effects of GABA and glutamate injected into the lateral ventricle were studied in single neuronal activity of the RVLM in addition to changes in BP and heart rate, and compared the results before and after treatment with intravenous...
209.

G Protein-Coupled Receptor Signaling in Gastrointestinal Smooth Muscle

UyDongSohn, DongSeokKim, KarnamSMurthy 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.4 1 287-297 (11 pages)

UyDongSohn, DongSeokKim, KarnamSMurthy 저
...
- 4,000원
Contraction of smooth muscle is initiated by an increase in cytosolic Ca2⁢ leading to activation of Ca2⁢/ calmodulin-dependnet myosin light chain (MLC) kinase and phosphorylation of MLC. The types of contraction and signaling mechanisms mediating contraction differ depending on the region. The involvement of these different mechanisms varies depending on the source of Ca2⁢ and the kinetic of Ca2⁢ mobilization. Ca2⁢ mobilizing agonists stimulate different...
210.

Increased Expression of Nitric Oxide Synthases in Left and Right Ventricular Hypertrophy

JongUnLee, YoonWhaOh, SunmiKim, DaeGillKang, WonJungLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages

대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.1 9 65-70 (6 pages)

JongUnLee, YoonWhaOh, SunmiKim, DaeGillKang, WonJungLee 저
...
- 3,000원
The present study was aimed to explore pathophysiological implications of nitric oxide in the development of left and right ventricular hypertrophy. To induce selective left and right ventricular hypertrophy, rats were made two-kidney, one clip (2K1C) hypertensive and treated with monocrotaline (MCT), respectively. Six weeks later, the hearts were taken and their ventricular tissue mRNA and protein expression of endothelial constitutive isoform of nitric oxide synthase (NOS) were determined by...

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