• 제목/요약/키워드: Developmental pharmacokinetics

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발달학적 정신약물학 - 발달학적 약동학, 약역학 및 약물유전학 - (DEVELOPMENTAL PSYCHOPHARMACOLOGY - DEVELOPMENTAL PHARMACOKINETICS, PHARMACODYNAMICS AND PHARMACOGENETICS -)

  • 조수철
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제14권2호
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    • pp.157-173
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    • 2003
  • 성인기에 비하여 소아의 정신약물학은 역사도 짧고 아직 체계도 잡혀 있지 않은 상태이다. 약물의 안정성, 효능, 장기 투여에 따르는 부작용에 대한 연구도 아직 초보적인 수준이다. 임상적인 측면에 있어서도 항우울제, 항정신병약물, 중추신경흥분제 등에 대한 반응이 성인기와는 일부 다른 반응을 보이기도 한다. 또한 연구분야에 있어서도 연구 윤리상 성인기에 비하여 많은 제한이 있다. 이에 본고에서는 발달학적 약역학에서는 약물의 흡수, 분포, 대사 및 배설과정에 있어서 어떠한 차이가 있는가를 살펴보았다. 아울러 특정 약물(항정신병약물, 항우울제, lithium, 중추신경흥분제, 항경련제 등)의 약역학에 대하여도 그 특성을 논하였다. 발달학적 약동학에서는 주요 수용체의 개체발생적인 과정과 그 과정이 갖는 임상적인 의미에 대하여 논하였다. 약물유전학적 측면에서는 약물유전학의 약역학적 측면, 약동학적 측면에 대하여 논하였다. Dopamine 관련 대립인자와 관련된 연관연구들에 있어서는 주의력결핍, 과잉운동장애, 뚜렛증후군에 대한 연구들에 대하여 살펴보았다. 대립인자와 관련된 약물유전연구에 있어서는 dopamine 수용체의 다형성과 clozapine, bromocriptine, haloperidol, methylphenidate에 대한 반응과의 관련성에 대하여 살펴보았다. 또한 serotonin 관련 수용체의 다형성과 약물반응과의 연관성에 대하여도 함께 논하였다. 이러한 연구들을 바탕으로 향후 소아 또는 청소년기의 약물투여에 있어서 발달학적인 특성과 함께 개인적인 특성이 고려된 투약이 시행되어야 할 것이다.

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신생아중환자의 약동학적 다양성에 영향을 미치는 요인 (Contributing Factors on Pharmacokinetic Variability in Critically Ill Neonates)

  • 안숙희
    • 한국임상약학회지
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    • 제27권2호
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    • pp.63-68
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    • 2017
  • Neonates have large inter-individual variability in pharmacokinetic parameters of many drugs due to developmental differences. The aim of this study was to investigate the factors affecting the pharmacokinetic parameters of drugs, which are commonly used in critically ill neonates. Factors that reflect physiologic maturation such as gestational age, postnatal age, postconceptional age, birth weight, and current body weight were correlated with pharmacokinetic parameters in neonates, especially preterm infants. Comorbidity characteristics affecting pharmacokinetics in critically ill neonates were perinatal asphyxia, hypoxic ischemic encephalopathy, patent ductus arteriosus (PDA), and renal dysfunction. Administration of indomethacin or ibuprofen in neonates with PDA was associated with the reduced clearance of renally excreted drugs such as vancomycin and amikacin. Therapeutic hypothermia and extracoporeal membrane oxygenation were influencing factors on pharmacokinetic parameters in critically ill neonates. Dosing adjustment and careful monitoring according to the factors affecting pharmacokinetic variability is required for safe and effective pharmacotherapy in neonatal intensive care unit.

임신시 향정신성 약물의 임상약리학 (Clinical Pharmacology of Psychotropic Agents in Pregnancy)

  • 노형근
    • 생물정신의학
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    • 제3권2호
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    • pp.149-155
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    • 1996
  • Doctors who treat pregnant women ore usually cautious in writing their prescription for the drugs. The problem of which psychotropic medications ore sale during pregnancy seems to remain unsolved for many years. Although the rate of absorption is reduced due to a reduced rate of gastric emptying, the extent of absorption of drug is generally unchanged during pregnancy. Plasma volume and total body water increase during pregnancy. There is suggestion that drug metabolizing activity may be increased in pregnancy. Since the pregnancy increase the glomerular filtration rate significantly, drugs mainly eliminated by renal excretion will be cleared more quickly. Factors contributing to the potential teratogenecity of a drug include the type of compound, dose and duration of use, developmental stage of fetus at the time of exposure, and the effect of the drug on fetal pharmacokinetics. All major classes of psychotropic agents should be assumed to diffuse readily across the placenta to the fetus and to be present in some quantity in the breast milk. To decide when and how to start the drug treatment depends on an assessment of the risks related both with and without drug treatment of psychiatric disorders.

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돼지 페로몬 성 냄새 분자들의 약물동력학적 특성과 ADMET 분석 (Pharmacokinetics Characters and ADMET Analyses of Potently Pig Pheromonal Odorants)

  • 최경섭;박창식;성낙도
    • Reproductive and Developmental Biology
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    • 제34권3호
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    • pp.153-159
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    • 2010
  • The 34 potently pig pheromonal odorants (1-32, 5755 & 7113) through structure-based virtual screening and ligand-based virtual screening method were selected and their ADMET and pharmacokinetics characters were evaluated and discussed quantitatively. The pheromonal odorants were projected on the following pre-calculated models, Caco-2 cell permeability, blood-brain barrier permeation, hERG inhibition and volume-distribution. From the results of in silico study, it is found that an optimal compound (31) either penetrating or have a little ($P_{caco2}$=-8.143) for Caco-2 cell permeability, moderate penetrating ability ($P_{BBB}$=0.082) for blood-brain barrier permeation, the low QT prolongation ($P_{hERG}$=1.137) for the hERG $K^+$ channel inhibition, and low distribution into tissues ($P_{VD}$=-5.468) for volume-distribution. Therefore, it is predicted that the compound (31) a topical application may be preferable from these based foundings.

In silico investigation of Panax ginseng lead compounds against COVID-19 associated platelet activation and thromboembolism

  • Yixian Quah;Yuan Yee Lee;Seung-Jin Lee;Sung Dae Kim;Man Hee Rhee;Seung-Chun Park
    • Journal of Ginseng Research
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    • 제47권2호
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    • pp.283-290
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    • 2023
  • Hypercoagulability is frequently observed in patients with severe coronavirus disease-2019 (COVID-19). Platelets are a favorable target for effectively treating hypercoagulability in COVID-19 patients as platelet hyperactivity has also been observed. It is difficult to develop a treatment for COVID-19 that will be effective against all variants and the use of antivirals may not be fully effective against COVID-19 as activated platelets have been detected in patients with COVID-19. Therefore, patients with less severe side effects often turn toward natural remedies. Numerous phytochemicals are being investigated for their potential to treat a variety of illnesses, including cancer and bacterial and viral infections. Natural products have been used to alleviate COVID-19 symptoms. Panax ginseng has potential for managing cardiovascular diseases and could be a treatment for COVID-19 by targeting the coagulation cascade and platelet activation. Using molecular docking, we analyzed the interactions of bioactive chemicals in P. ginseng with important proteins and receptors involved in platelet activation. Furthermore, the SwissADME online tool was used to calculate the pharmacokinetics and drug-likeness properties of the lead compounds of P. ginseng. Dianthramine, deoxyharrtingtonine, and suchilactone were determined to have favorable pharmacokinetic profiles.