• Title/Summary/Keyword: drug-drug interactions

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Effects of Gleditsia spina (GS) water extract on Gene Expression of Human Melanoma cells, by using Microarry technique (DNA chip을 이용한 조각자 추출물의 인간유래 악성 종양에 미치는 영향)

  • Park, Yong-Ho;Kim, Jong-Han;Park, Su-Yeon;Choi, Jeong-Hwa
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.21 no.1
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    • pp.55-69
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    • 2008
  • Objective : This study was designed to investigated effects of Gleditsia spina (GS) on human derived melanoma cells Methods : The genetic profile for the effect of medicine on human derived melanoma cells of SK-MEL-2, was measured by using microarray technique, and the functional analysis on these genes was conducted. The network of total protein interactions was measured by using cytoscape program. Results : Total 253 genes were up-regulated and 439 genes down-regulated in cells treated with GS. Genes induced or suppressed by GS were all mainly concerned with metabolic process, regulation of biological process and protein binding. Conclusion : Suggest the possibility of GS as anti-cancer drug and cosmetic agent, and also suggest that related mechanisms are involved in regulation of intra-cellular metabolism in melanoma cells.

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Studies on the Tablet Product Design : Effects of Anhydrous Lactose and Corn Starch on the Preparation of Prednisolone Tablet by Direct Compression Method (정제의 제조설계에 관한 연구 : 직타법에 의한 Prednisolone 정제의 제조에 있어서 무수유당 및 옥수수전분의 영향)

  • 권종원;민신홍;이상의;김용배
    • YAKHAK HOEJI
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    • v.20 no.1
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    • pp.63-69
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    • 1976
  • Prednisolone tablet product design problem was structured as constrained optimization problem and subsequently solved by multiple regression analysis and Lagrangian method of optimixation. Prednisolone was the drug chosen and anhydrous lactose and corn starch were the adjuvants. The effect of anhydrous lactose and corn starch concentrations on tablet hardness, volume, disintegration time and in vitro release rate was studied. The concentrations of anhydrous lactose and corn starch used in this experiment were 30-60 percent and 5-30 percent, respectively. A full second-order (quadratic) model with all possible two-factor interactions was employed. To obtain the values of anhydrous lactose and corn starch which miniumize the in vitro : release time (t$_{60%}$) subject to the constraint on tablet hardness, disintegration time and volume, we solved the Lagrange function. Multiple correlation coefficients for the regression models were correlated at less than 0.05 level and it was found that the optimum concentrations of anhydrous lactose and corn starch were 45 percent and 21 percent, respectively.

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Host-Directed Therapeutics as a Novel Approach for Tuberculosis Treatment

  • Kim, Ye-Ram;Yang, Chul-Su
    • Journal of Microbiology and Biotechnology
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    • v.27 no.9
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    • pp.1549-1558
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    • 2017
  • Despite significant efforts to improve the treatment of tuberculosis (TB), it remains a prevalent infectious disease worldwide owing to the limitations of current TB therapeutic regimens. Recent work on novel TB treatment strategies has suggested that directly targeting host factors may be beneficial for TB treatment. Such strategies, termed host-directed therapeutics (HDTs), focus on host-pathogen interactions. HDTs may be more effective than the currently approved TB drugs, which are limited by the long durations of treatment needed and the emergence of drug-resistant strains. Targets of HDTs include host factors such as cytokines, immune checkpoints, immune cell functions, and essential enzyme activities. This review article discusses examples of potentially promising HDTs and introduces novel approaches for their development.

Comparative Modeling of Human P-gp NBD2 and Docking and Binding Mode Analysis of 8-Geranyl Chrysin as a P-gp Modulator

  • Gadhe, Changdev G.
    • Journal of Integrative Natural Science
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    • v.5 no.1
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    • pp.18-21
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    • 2012
  • The resistance of tumour cells against cytotoxic drug is significant limitation in successful chemotherapeutic treatment of cancer. To date, no crystal structure is available for human P-gp. We developed homology model for human P-gp NBD2 by using coordinates of transporter associated protein (TAP1). Docking study was performed for 8-geranyl-chrysin (Flavonoids) inhibitor in the NBD2 model. Ligand-protein interactions were determined which indicates that the 8-geranyl chrysin shares two overlapping sites in the cytosolic domains of P-gp, the ATP site and a hydrophobic steroid-binding site.

Security Architecture for U-Healthcare Application in Wireless Sensor Network (무선 센서 네트워크에서의 유비쿼터스 헬스케어 시스템을 위한 보안 구조)

  • Shin, Yoon-gu;Kim, Hankyu;Kim, Sujin;Kim, Jung Tae
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2014.05a
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    • pp.884-885
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    • 2014
  • The use of Radio Frequency Identification technology (RFID) in medical context enables not only drug identification, but also a rapid and precise identification of patients, physicians, nurses or any other health care related staffs. The combination of RFID tag identification with structured and secured Internet of Things (IoT) solutions enables ubiquitous and easy access to medical related records, while providing control and security to all interactions. This paper surveyed a basic security architecture, easily deployable on mobile platforms, which would allow to establish and manage a medication prescription service in mobility context making use of electronic personal health records.

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Crystallization and preliminary X-ray analysis of API5-FGF2 complex

  • Bong, Seoung Min;Lee, Byung Il
    • Biodesign
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    • v.6 no.4
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    • pp.92-95
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    • 2018
  • API5 is a unique oncogenic, non-BIR type IAP nuclear protein and is up-regulated in several cancers. It exerts several functions, such as apoptosis inhibition, cell cycle progression, cancer immune escape, and anticancer drug resistance. Although structural studies of API have revealed that API5 mediates protein-protein interactions, its detailed molecular functions remain unknown. Since FGF2 is one of API5's major interacting proteins, structural studies of the API5-FGF2 complex will provide insight into both proteins' molecular function. We overexpressed and purified API5 and FGF2 in Escherichia coli and crystallized the API-FGF2 complex using polyethylene glycol (PEG) 6000 as a precipitant. Diffraction data were collected to a $2.7{\AA}$ resolution using synchrotron X-rays. Preliminary diffraction analysis revealed that the API5-FGF2 complex crystal belongs to the space group $P2_12_12_1$ with the following unit cell parameters: a = 46.862, b = 76.523, $c=208.161{\AA}$. One asymmetric unit with 49.9% solvent contains one API5-FGF2 complex. Molecular replacement calculation, using API5 and FGF2 coordinates, provided a clear electron density map for an API5-FGF2 complex.

Dental treatment under general anesthesia for patients with severe disabilities

  • Choi, Junglim;Doh, Re-Mee
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.21 no.2
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    • pp.87-98
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    • 2021
  • Patients with disabilities have difficulties tolerating in-office dental treatment due to limitations relating to cooperation and/or physical problems. Therefore, they often require general anesthesia or sedation to facilitate safe treatment. When deciding on dental treatment under general anesthesia, the plan should be carefully determined because compared to general patients, patients with disabilities are more likely to experience anesthetic complications because of their underlying medical conditions and potential drug interactions. Clinicians prefer simpler and more aggressive dental treatment procedures, such as extraction, since patients with impairment have difficulty maintaining oral hygiene, resulting in a high incidence of recurrent caries or restorative failures. This study aimed to review the available literature and discuss what dentists and anesthesiologists should consider when providing dental treatment to patients with severe disability under general anesthesia.

Targeting of integrin αvβ3 with different sequence of RGD peptides: A molecular dynamics simulation study

  • Azadeh Kordzadeh;Hassan Bardania;Esmaeil Behmard;Amin Hadi
    • Advances in nano research
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    • v.15 no.2
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    • pp.105-111
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    • 2023
  • Integrin αvβ3 is one of the receptors expressed in cancer cells. RGD peptides have the potential to target integrin αvβ3 (receptor), which can increase drug delivery efficiency. In this study, 55 different RGD dimer motifs were investigated. At first, the binding energy between RGD peptides and the receptor was calculated using molecular docking. Then, three RGD peptides with the strongest binding energy with the receptor were selected, and their dynamic adsorption on the receptor was simulated by molecular dynamics (MD). The obtained results showed that a sequence that has RGD at the beginning and end with tryptophan (TRP) has strong Lennard-Jones (LJ) and electrostatic interactions with Integrin αvβ3 and has changed the conformation of receptor significantly, which analyzed by root mean square deviation (RMSD) and radius of gyration.

Sugammadex-induced bronchospasm: a case report

  • Saeyoung Kim;Hyojun Choo;Hoon Jung;Ji Hyun Kim
    • Journal of Dental Anesthesia and Pain Medicine
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    • v.23 no.5
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    • pp.287-291
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    • 2023
  • Sugammadex has shown faster reversal of steroidal neuromuscular blockade (NMB) than neostigmine, a traditional reversal agent for NMB, even in the intense block phase. This efficiency is possible because of the unique mechanism of action by encapsulating the NMB molecules. Therefore, with the use of sugammadex, we can also expect to avoid direct interactions with the cholinergic system and its subsequent side effects, which are disadvantages of traditional drugs. However, despite these benefits and US Food and Drug Administration (FDA) approval in 2015, rare adverse events associated with sugammadex have been reported. Herein, we report a case of bronchospasm that developed immediately after sugammadex administration.

Transforming Patient Health Management: Insights from Explainable AI and Network Science Integration

  • Mi-Hwa Song
    • International Journal of Internet, Broadcasting and Communication
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    • v.16 no.1
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    • pp.307-313
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    • 2024
  • This study explores the integration of Explainable Artificial Intelligence (XAI) and network science in healthcare, focusing on enhancing healthcare data interpretation and improving diagnostic and treatment methods. Key methodologies like Graph Neural Networks, Community Detection, Overlapping Network Models, and Time-Series Network Analysis are examined in depth for their potential in patient health management. The research highlights the transformative role of XAI in making complex AI models transparent and interpretable, essential for accurate, data-driven decision-making in healthcare. Case studies demonstrate the practical application of these methodologies in predicting diseases, understanding drug interactions, and tracking patient health over time. The study concludes with the immense promise of these advancements in healthcare, despite existing challenges, and underscores the need for ongoing research to fully realize the potential of AI in this field.