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전체 선택해제
총 167건 검색
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치주인대세포의 교원질 생성에 대한 Substance P의 효과
전준영(Jun-Yeung Chun), 최제용(Je-Yong Choi), 경희문(Hee-Moon Kyung), 성재현(Jae-Hyun Sung) 대한치과교정학회 The Korean Journal of Orthodontics 12 Pages
대한치과교정학회 The Korean Journal of Orthodontics 1996, 제 26권 제 1호 7 83-94 (12 pages)
Substance P는 교정력이 가해진 치아의 치주인대 중 인장력을 받는 부위에 많이 분포하는 neuropeptide중의 하나이며, 또한 여러 조직에서 neurogenic inflammation을 야기하는 neuropeptide중의 하나로도 알려져 있다. 그러나 중요한 세포외 단백기질인 교원질의 생성에 대한 Substance P의 효과는 잘 알려져 있지 않다. 따라서 이 연구의 목적은 배양 치주인대 세포에서 교원질 생성에 대한 Substance P의 효과를 평가하는 것이었다. Collagenase-digestion method로 교원질 생성을 평가하였고 mRNA수준에서 작용효과를 평가하기 위하여... -
이차구개 형태분화의 내적 조절유전자 규명
이재국, 장은하, 임양희, 김기병, 고승오, 조의식, 신효근 대한구순구개열학회 대한구순구개열학회지 16 Pages
대한구순구개열학회 대한구순구개열학회지 2007, 제 10권 1호 1 1-16 (16 pages)
이차구개는 발생과정에서 구개선반의 형성과 성장, 거상과 융합의 과정을 통해 형성된다. 이와 같은 이차구개의 형성과정은 미세한 분자유전학적 신호전달기전에 의해 조절되는 것으로 알려져 있어서, 신호전달과정에 관여하는 유전인자의 발현이상이 되면 정상적인 이차구개가 형성되지 못하고 구개파열이라는 선천성 기형이 발생된다. 구개파열의 유발인자들에 대한 많은 연구에도 불구하고 현재까지 정상적인 이차구개의 형성을 조절하는 분자유전학적 기전에 대해서는 명확히 알려져 있지 않다. 따라서 본 연구에서는 이차구개의... -
Quercetin Inhibits α3β4 Nicotinic Acetylcholine Receptor-Mediated Ion Currents Expressed in Xenopus Oocytes
Byung-HwanLee, Sung-HeeHwang, Sun-HyeChoi, Tae-JoonShin, JiyeonKang, Sang-MokLee, Seung-YeolNah 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.1 3 17-22 (6 pages)
Quercetin mainly exists in the skin of colored fruits and vegetables as one of flavonoids. Recent studies show that quercetin, like other flavonoids, has diverse pharmacological actions. However, relatively little is known about quercetin effects in the regulations of ligand-gated ion channels. In the previous reports, we have shown that quercetin regulates subsets of homomeric ligand-gated ion channels such as glycine, 5-HT3A and Ձ7 nicotinic acetylcholine receptors. In the present study,... -
Knockdown of RCAN1.4 Increases Susceptibility to FAS-mediated and DNA-damage-induced Apoptosis by Upregulation of p53 Expression
YoungSunKim, HongJoonLee, ChorongJang, Ho-ShikKim, , Young-JinCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.6 12 483-489 (7 pages)
Despite the potential importance of the human regulator of calcineurin 1 (RCAN-1) gene in the modulation of cell survival under stress, little is known about its role in death-inducing signal pathways. In this study, we addressed the effects of RCAN1.4 knockdown on cellular susceptibility to apoptosis and the activation of death pathway proteins. Transfection of siRNAs against RCAN1.4 resulted in enhanced Fas- and etoposide-induced apoptosis, which was associated with increased expression and... -
Direct Block of Cloned K+ Channels, Kv1.5 and Kv1.3, by Cyclosporin A, Independent of Calcineurin Inhibition
BokHeeChoi, SangJuneHahn 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.6 7 353-362 (10 pages)
The interaction of cyclosporine A (CsA), an immunosuppressant, with rat brain Kv1.5 (Kv1.5) channels, which were stably expressed in Chinese hamster ovary cells, was investigated using the whole-cell patch-clamp technique. CsA reversibly blocked Kv1.5 currents at 50 mV in a reversible concentration- dependent manner with an apparent IC50 of 1.0μM. Other calcineurin inhibitors (cypermethrin, autoinhibitory peptide) had no effect on Kv1.5 and did not prevent the inhibitory effect of CsA.... -
PKA-Mediated Regulation of B/K Gene Transcription in PC12 Cells
Mi-HyunChoi, Ho-ShikKim, Sung-HoChoi, Mi-YoungKim, Yoon-SeongJang, Young-MinJang, Jeong-HwaLee, Seong-WhanJeong, In-KyungKim, Oh-JooKwon 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.6 4 333-340 (8 pages)
B/K protein is a novel protein containing double C2-like domains. We examined the specific signaling pathway that regulates the transcription of B/K in PC12 cells. When the cells were treated with forskolin (50μM), B/K mRNA and protein levels were time-dependently decreased, reaching the lowest level at 3 or 4 hr, and thereafter returning to the control level. Chemicals such as dibutyryl-cAMP, cell- permeable cyclic AMP (cAMP) analogue and CGS21680, adenosine receptor A2A agonist, also... -
Regulation of Vacuolar H+-ATPase c Gene Expression by Oxidative Stress
Whan-JongKwak, Seong-MookKim, Min-SungKim, Jung-HoonKang, Dong-JinKim, Ho-ShikKim, Oh-JooKown, In-KyungKim, Seong-WhanJeong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.5 4 275-282 (8 pages)
By using differential display, we identified one of the genes encoding the multi-subunit complex protein V-ATPase, c subunit gene (ATP6L), and showed alterations of the gene expression by oxidative stresses. Expression of the ATP6L gene in Neuro-2A cells was increased by the treatment with H2O2 and incubation in hypoxic chamber, implying that the expression of the ATP6L gene is regulated by oxidative stresses. To examine mechanisms involved in the regulation of the gene expression by oxidative... -
Molecular Aspects of Organic Ion Transporters in the Kidney
SeokHoChaHitoshiEndou 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 16 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.2 1 107-122 (16 pages)
A function of the kidney is elimination of a variety of xenobiotics ingested and wasted endogenous compounds from the body. Organic anion and cation transport systems play important roles to protect the body from harmful substances. The renal proximal tubule is the primary site of carrier-mediated transport from blood into urine. During the last decade, molecular cloning has identified several families of multispecific organic anion and cation transporters, such as organic anion transporter...
