• Title/Summary/Keyword: new drugs

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Design and Implementation of the Prevention System for Side Effects of Polypharmacy Components Utilizing Data Queuing Algorithm

  • Choi, Jiwon;Kim, Chanjoo;Ko, Yunhee;Im, Hyeji;Moon, Yoo-Jin;McLain, Reid
    • Journal of the Korea Society of Computer and Information
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    • v.26 no.11
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    • pp.217-225
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    • 2021
  • In this paper, we designed and implemented the integrated system to prevent adverse drug reactions of polypharmacy components in medicine by supporting component-component information and disease-component information, through data queuing algorithm and vast amounts of pharmaceutical big data. In addition, by providing information for drugs, drug components, prohibited drugs, as well as suppliers and distributors, it could help ease anxiety about taking drugs not only for health-care professionals but also for general users. The representative information provided were side effects between two drugs, main components and effectiveness of particular drugs, drugs manufactured by the same pharmaceutical company, and drug component information for patients with chronic diseases. The future work is to update the database by collecting information on rare & new diseases and new drugs.

Advancements in the treatment of pediatric acute leukemia and brain tumor - continuous efforts for 100% cure

  • Ju, Hee Young;Hong, Che Ry;Shin, Hee Young
    • Clinical and Experimental Pediatrics
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    • v.57 no.10
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    • pp.434-439
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    • 2014
  • Treatment outcomes of pediatric cancers have improved greatly with the development of improved treatment protocols, new drugs, and better supportive measures, resulting in overall survival rates greater than 70%. Survival rates are highest in acute lymphoblastic leukemia, reaching more than 90%, owing to risk-based treatment through multicenter clinical trials and protocols developed to prevent central nervous system relapse and testicular relapse in boys. New drugs including clofarabine and nelarabine are currently being evaluated in clinical trials, and other targeted agents are continuously being developed. Chimeric antigen receptor-modified T cells are now attracting interest for the treatment of recurrent or refractory disease. Stem cell transplantation is still the most effective treatment for pediatric acute myeloid leukemia (AML). However, in order to reduce treatment-related death after stem cell transplantation, there is need for improved treatments. New drugs and targeted agents are also needed for improved outcome of AML. Surgery and radiation therapy have been the mainstay for brain tumor treatment. However, chemotherapy is becoming more important for patients who are not eligible for radiotherapy owing to age. Stem cell transplant as a means of high dose chemotherapy and stem cell rescue is a new treatment modality and is often repeated for improved survival. Drugs such as temozolomide are new chemotherapeutic options. In order to achieve 100% cure in children with pediatric cancer, every possible treatment modality and effort should be considered.

GOOD LABORATORY PRACTICE -PRINCIPLES AND PRESENT STATUS IN JAPAN

  • Omori, Yoshihito
    • Toxicological Research
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    • v.1 no.1
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    • pp.31-41
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    • 1985
  • The Japanese Good Laboratory Practice (GLP) Standard on Drugs was finalized as a guideline and implemented in April, 1983. This standard is intended to ensure the quality and integrity of the data from nonclinical toxicity studies submitted to the Ministry of Health and Welfare in support of applications for approval to manufacture or import new drugs or to be used in the reevaluation of previously approved drugs. The standard includes a guideline for organizational matters, personnel, facility, equipment, testing operation, documentation and conduct of studies. Principles and influences of implementation of Japanese GLP will be discussed briefly in comparison with foreign GLPs.

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Learnings from Generic Substitution in US and Suggestions to Korean Food and Drug Administration

  • Yoo, Bong-Kyu
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.91-92
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    • 2003
  • Virtually every state in US has adopted laws and regulations that mandate the generic substitution of brand-named prescription drugs in order to reduce sky-rocketing drug costs. In the late 1970s, many state governments began to recognize the need of generic substitution and requested Food and Drug Administration (FDA) to consult with this issue. FDA did consult which drugs were interchangeable each other based upon the available scientific and experimental evidences given to the agency along with New Drug Application (NDA) and Abbreviated New Drug Application (ANDA). (omitted)

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Microencapsulation Methods for Delivery of Protein Drugs

  • Yoon Yeo;Namjin Baek;Park, Kinam
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.6 no.4
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    • pp.212-230
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    • 2001
  • Recent advances in recombinant DNA technology have resulted in development of many new protein drugs. Due to the unique properties of protein druges, they have to be delivered by parenteral injection Although delivery of protein drugs by other routes, such as pulmonary and nasal routes, has shown some promises, to date most protein drugs are administered by par-enteral routs. For long-term delivery of protein drugs by parenteral administration, they have been formulated into biodegradable microspheres. A number of microencapsulation methods have been developed, and the currently used microencapsulation methods are reviewed here, The microen-capsulation methods have been divided based on the method used. They are: solvent evapora-tion/extraction; phase separation (coacervation);spray drying; ionotropic gelation/polyelectrolyte complexation; interfacial polyumerization and supercritical fluid precipitation. Each method is de-scribed fro its applications, advantages, and limitations.

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Antiepileptical Properties Of Ginsenosides From Korean Red Ginseng And Ginseng Cell Culture (Dan25)

  • ChepurnovS.A.;Park, Jin-Kyu;vanLuijtelaarE.L.J.M;ChepurnovaN.E.;StrogovS.E.;MikhaylovaO.M.;ArtukhovaM.V.;BerdievR.K.;GoncharovO.B.;SergeevV.I.;TolamachevaE.A.
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2000.10a
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    • pp.116-122
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    • 2000
  • The molecular modification of antiepileptic drugs and direct synthesis of new drugs with the predetermined antiepileptic properties are perspective. New neurochemical attacking to solve the problem including prevention and inhibition of seizures seems to be related to ginsenosides and ginseng polypeptides. The main study based on the severity of febrile convulsions of rat pups has been done from the earlier investigations of antiepileptical action of ginsenosides between KGTRI and MSU (Chepurnov, Park et al., 1995) with different kinds of experimental models of epilepsy. From the cultured cell line DAN25 of ginseng root, the extracts of ginsenosides made in "BIOKHIMMASH" were studied by the project of preclinical anticonvulsant screening (Stables, Kupferberg, 1997). The inhibition of severity of convulsions, decrease of seizures threshold, decrease of audiogenic seizures in rats of different strains and normalization of cerebral blood flow (measured by hydrogen test) were demonstrated in rats after i.c.v., intraperitoneally and orally administration, respectively. The antiepileptical effects by the combination of compounds from ginseng; were compared with the iuluence of Rg1, Rb1, Rc and with the well known antiepileptical drugs such as carbamazepine, valproic acid. The base for the research is obtained by using the WAG/Rij strain (Luijtelaar, Coenen, Kuznetcova), an excellent genetic model for human generalized absence epilepsy. The improving action of gensinosides was effectively demonstrated on the model of electrical kindling of amygdala of WAG/Rij rats with genetically determined absences, and the influences of ginsenosides on the slow wave discharges have also been being investigated. The different characteristics of a kindling process exerted in the sex-different region of the amygdala and demonstrated that the level of sex steroids and content of neurosteroids in amygdaloid tissue can modify the development of seizures. The chemical structures of ginsenosides not only have some principal differences from well-known antiepileptical drugs but the Plant Pharmacology gives us unique possibility to develop new class of antiepileptic drugs and to improve its biological activity.

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Identifying literature-based significant genes and discovering novel drug indications on PPI network

  • Park, Minseok;Jang, Giup;Lee, Taekeon;Yoon, Youngmi
    • Journal of the Korea Society of Computer and Information
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    • v.22 no.3
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    • pp.131-138
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    • 2017
  • New drug development is time-consuming and costly. Hence, it is necessary to repurpose old drugs for finding new indication. We suggest the way that repurposing old drug using massive literature data and biological network. We supposed a disease-drug relationship can be available if signal pathways of the relationship include significant genes identified in literature data. This research is composed of three steps-identifying significant gene using co-occurrence in literature; analyzing the shortest path on biological network; and scoring a relationship with comparison between the significant genes and the shortest paths. Based on literatures, we identify significant genes based on the co-occurrence frequency between a gene and disease. With the network that include weight as possibility of interaction between genes, we use shortest paths on the network as signal pathways. We perform comparing genes that identified as significant gene and included on signal pathways, calculating the scores and then identifying the candidate drugs. With this processes, we show the drugs having new possibility of drug repurposing and the use of our method as the new method of drug repurposing.

Targeting of Drugs Especially by Liposomes (담체(膽體)를 이용(利用)한 약물(藥物)의 표적조직집중기법(標的組織集中技法) -리포솜을 중심(中心)으로-)

  • Shim, Chang-Koo;Lee, Jun-Ho
    • Journal of Pharmaceutical Investigation
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    • v.13 no.4
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    • pp.153-172
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    • 1983
  • The use of carrier systems for the delivery of drugs to areas in the body in need of pharmacological intervention is now the subject of intense research in many laboratories. Because of its obvious advantages (e.g. protection of drugs from hostile environments, facilitated target penetration and avoidance of side effects), drug delivery is expected to ease the pressure and expense of new drug development by making better use of drugs in existence. Generally, carrier-mediated delivery has been envisaged either as direct transport of drugs to a biological target by a carrier that will associate with it selectively, or as release of drugs from a carrier circulating in the blood or immobilized in tissues, at rates compatible with optimal action. One system that has attracted considerable attention is the use of liposomes as carriers of pharmacologically active agents. 154 references were reviewed with special emphasis on the targeting of drugs by use of liposomes in this respect. Recent advances in the other carrier systems and in methods for the preparation of liposomes were also reviewed briefly.

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Problems of Legal Permissible Limit in Metal Level of Herbal Drugs Using Current Korea (현행 한국의 한약재 중금속기준개정 필요성 고찰)

  • Lee Sun-Dong;Park Kyung-Sik
    • Journal of Society of Preventive Korean Medicine
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    • v.5 no.1
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    • pp.31-40
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    • 2001
  • Legal permissible limit of herbal drugs metal level in Korea is define 'less 30.0ppm in total(except mineral drugs)' including Pb Hg Cd As Cr Ni etc. This limit has a lot of problems in several factors, that is, not divide hazard and essential elements, not consider high and low toxic effect in each metal, not calculate dose-response relationship and average health behavior in Korean etc. As a that result, It has strong limits and weakness in the basic toxicology and Oriental medicine. To improve and correct these factors, We need to several new approach as like below. It must be radical study following problems in short and middle-long period in the future, toxic metal and essential element must be divide to basic toxicology and also be diverse toxic effect. But mineral drugs that included a amount of severe toxic metals is being used as active prescription drug until now. If toxic, safety and side-effect of metals will be considered, mineral drugs must prohibit instantly or use at least after examined toxic effect. But one of the most important things about herbal drugs contamination, all people and department (government, farmer and trader, oriental medicine doctors and association) will be participate cooperative and collection for preventive or the least contamination in herbal drugs.

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Osteonecrosis of the jaw in the era of targeted therapy and immunotherapy in oncology

  • Nifosi, Antonio Fabrizio;Zuccarello, Mariateresa;Nifosi, Lorenzo;Saus, Vanessa Hervas;Nifosi, Gianfilippo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.45 no.1
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    • pp.3-8
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    • 2019
  • Osteonecrosis of the jaw (ONJ) is a well-known pathological condition in oncology derived from the use of bisphosphonates (BPs) and denosumab. Many molecular and immunological targets have been introduced for daily use in cancer treatment in recent years; consequently, new cases of ONJ have been reported in association with these drugs, especially if administered with BPs and denosumab. When the drugs are administered alone, ONJ is rarely seen. The objective of our study was to analyze the recent literature relative to the association of ONJ with these new drugs highlighting the pathogenic, clinical and therapeutic aspects. The close collaboration between maxillofacial surgeon, oncologist, dentist, and dental hygienist remains the most important aspect for the prevention, prompt recognition, and treatment of this pathology.