• Title/Summary/Keyword: guinea-pig

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General Pharmacology of the Active Ingredients of New Antibiotic Bead (CJ-40003) (골수염 치료제인 항생제비드(CJ-40003) 유효성분의 일반약리작용)

  • 김영훈;최재묵;온윤성;연규정;이윤하;김제학;이영수
    • Biomolecules & Therapeutics
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    • v.7 no.1
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    • pp.97-104
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    • 1999
  • A new antibiotic bead, CJ-40003 is a combination of three antibiotics, tobramycin, vancomycin and cefazolin embedded in bone cement, for the treatment of osteomyelitis. To evaluate the general pharmacological properties of CJ-40003, the effects of its active ingredients were investigated in mice, rats, dogs and isolated guinea pig ileum. The combination of three antibiotics (CA) did not affect general behavior, central nervous system, smooth muscles, gastrointestinal system, cardiovascular and respiratory system and water and electrolytes excretion when administered intravenously at the doses of 0.3, 1 and 3 mg/kg, respectively, into experimental animals. The CA had no effect on the contractile response of the isolated guinea pig ileum to various spasmogen at concentrations of 1, 3 and 10 $\mu\textrm{g}$/ml, respectively. In conclusion, the active ingredients of CJ-40003 showed no pharmacological effect in these studies.

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$\alpha_1$-Adrenergic Effects on Intracellular $Ca^{2+}$, Contraction and L-type $Ca^{2+}$ Current in Guinea Pig Ventricular Myocytes: Role of Protein Kinase C

  • Woo, Sun-Hee;Lee, Chin-Ok
    • Proceedings of the Korean Biophysical Society Conference
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    • 1997.07a
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    • pp.27-27
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    • 1997
  • The effects of $a_1$-adrenoceptor stimulation on intracellular $Ca^{2+}$ ([C $a^{2+}$]$_{i}$ ) transient, contraction, and L-type $Ca^{2+}$ current ( $I_{Ca,L}$) were studied in single cells isolated from ventricles of guinea pig hearts. Phenylephrine, $\alpha$$_1$-adrenergic agonist, (5$\times$10$^{-5}$ ~10$^{-4}$ M) produced a biphasic pattern of inotropism: transient negative response (decrease in contraction by 23.9$\pm$2.5% of control) followed by a sustained positive response (increase in contraction by 60.0$\pm$3.4%, mean $\pm$ SD, n=12).(omitted)ted)

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Role of Protein Kinase C in $\alpha_1$-Adrenergic Regulation of $a^i_{Na}$ in Single Guinea Pig Ventricular Myocyles

  • Jo, Su-Hyun;Lee, Chin-Ok
    • Proceedings of the Korean Biophysical Society Conference
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    • 1997.07a
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    • pp.28-28
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    • 1997
  • Stimulation of $\alpha$$_1$-adrenergic receptor ($\alpha$$_1$-AR) by phenylephrine produced a decrease in intracellular N $a^{+}$ activity ( $a_{Na}$ $^{i}$ ) in multicellular preparations of cardiac tissues. The role of protein kinase C (PKC) in $\alpha$$_1$-adrenergic regulation of $a_{Na}$ $^{i}$ was studied in single ventricular myocyte isolated from guinea pig hearts. $a_{Na}$ $^{i}$ and membrane potential were measured with N $a^{+}$ indicator, sodium-binding benzofuran isophthalate tetraacetoxy methyl ester (SBFI/AM) and microelectrodes respectively when ventricular myocyte was stimulated at 0.3 Hz.(omitted)d)

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Oxyresveratrol Derivative Compound DMPB Act as Potent Dipigment agent in Brown Guinea Pig Skin

  • Choi, Sang-Yoon;Kim, Sang-Hee;Hwang, Jae-Sung;Kim, Ho-Cheol;Kim, Sun-Yeou
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.92.2-93
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    • 2003
  • This study with the object of reported to depigment agent, oxyresveratrol derivative, compound DMPB. Compound DMPB with a two methoxy groups and modified connection chain. It was synthesized in accordance with a simple combination process. Compound DMPB exhibits depigmentaion ability on ultraviolet B-induced hyperpigmention of the brown guinea pig skin. In addition, this Compound exhibited 30% inhibitory effect of melanin generation without cell toxicity as a result of the treatment with 100 ppm in melan-a cells. (omitted)

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Efficacy of Terbinafine in Guinea Pigs Experimentally Infected with Microsporum gypseum Isolated from Naturally Infected Dog II. Clinical and Mycological Efficacy (자연감염된 개에서 분리한 Microsporum gypseum을 인공감염시킨 기니픽에서 Terbinafine의 효과 II. 임상적 ald 진균학적 효과)

  • 임채형;이창우
    • Journal of Veterinary Clinics
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    • v.17 no.1
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    • pp.6-12
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    • 2000
  • 알비노 기니픽의 피부에 Microsporum gypseum을 접종한 후 체중 kg당 20, 40 및 80mg의 terbinafine을 접종 당일부터 9일간 연속 투여하였다. 대조군의 피부는 인설과 가피를 동반한 현저한 염증이 발생되었다. 이와 대조적으로 terbinafine을 경구투여한 처치군에서는 피부 증상이 현저하게 차도를 보였다. 진균학적인 평가를 위해 모근침범시험을 실시 하였다. 체중 kg 당 20∼80mg의 terbinafine을 경구투여한 처치군은 진균학적으로 97∼100%의 치료효과를 나타냈으며, 대주군에서는 치료효과가 전혀 없었다.

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Comparative Analysis of Phospholipase D2 Localization in the Pancreatic Islet of Rat and Guinea Pig

  • Ryu, Gyeong-Ryul;Kim, Myung-Jun;Song, Chan-Hee;Min, Do-Sik;Rhie, Duck-Joo;Yoon, Shin-Hee;Hahn, Sang-June;Kim, Myung-Suk;Jo, Yang-Hyeok
    • The Korean Journal of Physiology and Pharmacology
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    • v.7 no.4
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    • pp.211-215
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    • 2003
  • To examine the localization pattern of phospholipase D2 (PLD2) in the pancreatic islet (the islet of Langerhans) depending on species, we conducted a morphological experiment in the rat and guinea pig. Since individual islets display a typical topography with a central core of B cell mass and a peripheral boundary of A, D, and PP cells, double immunofluorescent staining with a panel of antibodies was performed to identify PLD2-immunoreactive cells in the islets PLD2 immunoreactivity was mainly present in A and PP cells of the rat pancreatic islets. And yet, in the guinea pig, PLD2 immunoreactivity was exclusively localized in A cells, and not in PP cells. These findings suggest a possibility that PLD2 is mainly located in A cells of rodent pancreatic islets, and that the existence of PLD2 in PP cells is not universal in all species. Based on these results, it is suggested that PLD2 may play a significant role in the function of A and/or PP cells via a PLD-mediated signaling pathway.