• 제목/요약/키워드: Research Evaluation

검색결과 25,156건 처리시간 0.058초

Potential for Dependence on Lisdexamfetamine - In vivo and In vitro Aspects

  • Yun, Jaesuk;Lee, Kwang-Wook;Eom, Jang-Hyeon;Kim, Young-Hoon;Shin, Jisoon;Han, Kyoungmoon;Park, Hye-Kyung;Kim, Hyung Soo;Cha, Hye Jin
    • Biomolecules & Therapeutics
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    • 제25권6호
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    • pp.659-664
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    • 2017
  • Although lisdexamfetamine is used as a recreational drug, little research exists regarding its potential for dependence or its precise mechanisms of action. This study aims to evaluate the psychoactivity and dependence profile of lisdexamfetamine using conditioned place preference and self-administration paradigms in rodents. Additionally, biochemical techniques are used to assess alterations in the dopamine levels in striatal synaptosomes following administration of lisdexamfetamine. Lisdexamfetamine increased both conditioned place preference and self-administration. Moreover, after administration of the lisdexamfetamine, dopamine levels in the striatal synaptosomes were significantly increased. Although some modifications should be made to the analytical methods, performing high performance liquid chromatography studies on synaptosomes can aid in predicting dependence liability when studying new psychoactive substances in the future. Collectively, lisdexamfetamine has potential for dependence possible via dopaminergic pathway.

Dependence Potential of Tramadol: Behavioral Pharmacology in Rodents

  • Cha, Hye Jin;Song, Min Ji;Lee, Kwang-Wook;Kim, Eun Jung;Kim, Young-Hoon;Lee, Yunje;Seong, Won-Keun;Hong, Sa-Ik;Jang, Choon-Gon;Yoo, Han Sang;Jeong, Ho-Sang
    • Biomolecules & Therapeutics
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    • 제22권6호
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    • pp.558-562
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    • 2014
  • Tramadol is an opioid analgesic agent that has been the subject of a series of case reports suggesting potential for misuse or abuse. However, it is not a controlled substance and is not generally considered addictive in Korea. In this study, we examined the dependence potential and abuse liability of tramadol as well as its effect on the dopaminergic and serotonergic systems in rodents. In animal behavioral tests, tramadol did not show any positive effects on the experimental animals in climbing, jumping, and head twitch tests. However, in the conditioned place preference and self-administration tests, the experimental animals showed significant positive responses. Taken together, tramadol affected the neurological systems related to abuse liability and has the potential to lead psychological dependence.

ASSESSMENT OF STABILITY AND ALLERGENICITY OF FOOD ALLERGENIC PROTEINS

  • Lee, J.H.;Yoon, W.K.;Han, S.B.;Yun, S.O.;Park, S.H.;Lee, H.J.;Yoon, P.S.;Moon, J.S.;Kim, H.C.;Kim, H.M.
    • 한국환경성돌연변이발암원학회:학술대회논문집
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    • 한국환경성돌연변이발암원학회 2002년도 Molecular and Cellular Response to Toxic Substances
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    • pp.180-180
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    • 2002
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Assessment of allergenicity of genetically modified foods (GMOs)

  • Lee, Jung-Hyun;Yoon, Won-Ki;Han, Sang-Bae;Yun, Si-On;Park, Sun-Hong;Lee, Hyun-Ju;Yoon, Pyung-Seop;Moon, Jae-Sun;Kim, Hyung-Chin;Kim, Hwan-Mook
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.267.1-267.1
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    • 2002
  • The potential allergenicity of the transgene products in genetically modified organisms (GMOs). has been an important issue. As a part of the risk assessment of GMOs. we investigated the physicochemical stability and the immunogenicity of food allergens to determine their allergenicity. We have systematically evaluated the stability of food allergens in the gastrointestinal tract by using simple models of gastric (Stimulated gastric fluid) and intestinal (Stimulated intestinal fluid) digestion. (omitted)

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SAFETY EVALUATION OF SUNSCREENS (I) ; CORRELATION BETWEEN SUN PROTECTION FACTOR AND SKIN IRRITATION

  • Suh, Soo-Kyung;Kim, Jong-Won;Park, Ju-Young;Seo, Kyung-Won;Park, Chang-Won;Kim, Kyu-Bong;Kim, Kwang-Jin;Kim, Jong-Min;Lee, Sun-Hee
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2002년도 Current Trends in Toxicological Sciences
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    • pp.138-138
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    • 2002
  • In recent years, the safety of sunscreens has been challenged based on the reports of its adverse effect on users; dermatitis, allergic contact dermatitis, photoallergic contact dermatitis. To investigate a correlation between sun protection factor (SPF) and the safety of sunscreens, we measured in vitro SPF index using homosalate as a standard and examined the toxicity tests on cosmetics; primary and cumulative skin irritation tests, ocular irritation test, and skin sensitization test.(omitted)

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CORRELATION BETWEEN SPF INDEX AND SAFETY MARKER IN SUNCREENS

  • Kim, Jong-Won;Suh, Soo-Kyung;Choi, Ju-Young;Park, Chang-Won;Seo, Kyung-Won;Kim, Kyu-Bong;Kim, Kwang-Jin;Kim, Jae-Hee;Lee, Sun-Hee
    • 한국환경성돌연변이발암원학회:학술대회논문집
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    • 한국환경성돌연변이발암원학회 2002년도 Molecular and Cellular Response to Toxic Substances
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    • pp.195-195
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    • 2002
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