• Title/Summary/Keyword: Long-acting product

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Technology Trends of Growth Hormone and Development Strategies for Growtropin

  • Seo, Kwang-Seok
    • Journal of mucopolysaccharidosis and rare diseases
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    • v.1 no.1
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    • pp.23-27
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    • 2015
  • Recent research trends of human growth hormone (hGH) are divided into improved first-generation products, long-acting second-generation products, and biosimilar products. Among the improved first-generation products studies, studies of injection devices are being actively conducted. The long-acting second-generation products are focused on extending the half-life of hGH, and depending on the results of the clinical trials, the candidates are expected to lead the future hGH market. Finally, biosimilar has had less impact on the hGH market before now; however, expectations of low-cost products still remainas an opportunity.

JPH Timer Display System for Indicating the Standard Outputs JPH (표준 작업량 지시용 JPH 타이머 Display 시스템)

  • Lee Seong-Cheol;Pang Du-Yeol;Choi Kwang-Hun
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.313-314
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    • 2006
  • Indicating product quantity by real time can be benefit both worker and management. Worker can compare real product quantity with its target and can adjust working speed to match with goal. Therefore, so called JPH equipment developed to indicate target quantity of product. As a main processor PIC16F877 was used and FND display were used to indicate current time, elapsed time, JPH value and target amount of product. Values like JPH and starting time, etc. are can easily be set by $4{\times}4$ numeric keypad and display datum likes target amount of product, current time and elapsed time, etc are displayed on FND by RS232 serial transmit. The operation of JPH equipment are tested and verified through long term test and are proved acting properly on working conditions.

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Therapeutic Duplication Criteria Development of Respiratory System Drugs (호흡기계 작용 약물의 치료군 중복처방 평가기준 개발)

  • Choi, Kyung-Eob;Sohn, Hyun-Soon;Kim, Nam-Hyo;Shin, Hyun-Taek;Lee, Young-Sook
    • YAKHAK HOEJI
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    • v.56 no.2
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    • pp.126-135
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    • 2012
  • Purpose: To develop therapeutic duplication criteria for the drugs used for respiratory diseases. Method: Therapeutic duplication was defined as "more than 2 drug ingredient-usage in which each has the same therapeutic effect and combination therapy does not confer additional therapeutic benefit". Respiratory system drugs approved in Korea were examined for the study. The WHO's Anatomical Therapeutic Chemical Classification System was used for grouping of the corresponding drug ingredients. The principles and recommendations on combination usage or multiple drug regimens were reviewed by using the clinical practice guidelines, textbooks, product labelings, and clinical articles. Clinical expert group consultation was performed and expert opinions were incorporated into the final criteria. Results: Nine hundred sixty two drug products with Korean Food and Drug Administration classification codes of 141, 149, 222, and 229 were evaluated, of which 87 active ingredients were composed. The drug ingredients were classified into 12 groups (antihistamines, oral nasal decongestants, leukotriene receptor antagonists, inhaled anticholinergics, inhaled corticosteroids, oral ${\beta}2$-agonists, long-acting ${\beta}2$-agonists, short-acting ${\beta}2$-agonists, xanthines, antiallergics, mucolytics and cough suppressants). The use of more than 2 drug ingredients including the same group was therapeutic duplication, and thus combination should be recommended not to be used. Conclusion: Twelve drug groups were identified as therapeutic duplication criteria. Combination therapy within each group should not be used otherwise therapeutic benefits outweigh potential risks.

Pharmaceutical Study on Ketoprofen Lysinate (Ketoprofen Lysinate의 약제학적(藥劑學的) 연구(硏究))

  • Lee, Wan-Ha;Kim, Jang-Bae;Jee, Ung-Kil;Rhyu, Byung-Tae
    • Journal of Pharmaceutical Investigation
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    • v.12 no.2
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    • pp.37-44
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    • 1982
  • In order to enhance water solubility, ketoprofen was made as lysine salt, such as acetylsalicylic acid lysine salt, ibuprofen lysine salt and amino acid salt of phenylbutazone. The purpose of this study was to make a comparison between ketoprofen lysine salt in aspects of analgesic, anti-inflammatory, and antipyretic effect. The experimental results were summerized as followings. 1. Ketoprofen lysinate was composed of one molecule of ketoprofen and one molecule of lysine. The product was water soluble and melting point was $92^{\circ}C{\sim}94^{\circ}C$. 2. Ketoprofen lysinate showed about 2 times stronger analgesic effect than that of ketoprofen while no difference in antipyretic effect was observed. 3. $LD_{50}$ of ketoprofen lysinate was higher than that of ketoprofen, suggesting ketoprofen lysinate as safer drug. 4. Blood concentration of ketoprofen lysinate was $156{\mu}g/ml$ while the concentration of ketoprofen was $116{\mu}g/ml$ in 30 min., suggesting long acting as well as high blood concentration.

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Experimental and Computational Investigation of Wind Flow Field on a Span Roof Structure

  • K B Rajasekarababu;G Vinayagamurthy;Ajay Kumar T M;Selvirajan S
    • International Journal of High-Rise Buildings
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    • v.11 no.4
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    • pp.287-300
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    • 2022
  • Unconventional structures are getting more popular in recent days. Large-span roofs are used for many structures, such as airports, stadiums, and conventional halls. Identifying the pressure distribution and wind load acting on those structures is essential. This paper offers a collaborative study of computational fluid dynamics (CFD) simulations and wind tunnel tests for assessing wind pressure distribution for a building with a combined slender curved roof. The hybrid turbulence model, Improved Delayed Detached Eddy Simulation (IDDES), simulates the open terrain turbulent flow field. The wind-induced local pressure coefficients on complex roof structures and the turbulent flow field around the structure were thus calculated based upon open terrain wind flow simulated with the FLUENT software. Local pressure measurements were investigated in a boundary layer wind tunnel simultaneous to the simulation to determine the pressure coefficient distributions. The results predicted by CFD were found to be consistent with the wind tunnel test results. The comparative study validated that the recommended IDDES model and the vortex method associated with CFD simulation are suitable tools for structural engineers to evaluate wind effects on long-span complex roofs and plan irregular buildings during the design stage.

A Review of Marine Algae-derived Therapeutic Agents for Respiratory Disease Asthma (해조류 유래 호흡기 질환 천식 치료제 연구 동향)

  • Kim, Tae-Hee;Heo, Seong-Yeong;Oh, Gun-Woo;Kim, Min-Sung;Choi, Il-Whan;Jung, Won-Kyo
    • Journal of Marine Bioscience and Biotechnology
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    • v.12 no.1
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    • pp.1-10
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    • 2020
  • Asthma is a complex inflammatory disease of the lung characterized by variable airflow obstruction, airway hyperresponsiveness, airway inflammation, and reduction of respiratory function. Its prevalence and incidence are increasing because of the effect of various environmental and lifestyle risk factors. Steroid inhalation, long-acting agonists, and other synthetic drugs are used for the treatment of this disease. However, they have some side effects and show unsatisfied result and response after treatment. Therefore, many researchers have focused on the development of natural product-related treatment for asthma to suppress the side effects and unsatisfied results. Seaweeds contain various bioactive compounds with anti-inflammatory, antibacterial, and anti-oxidant activities. Thus, we investigated the asthma treatment-related literature using marine algae via the Google scholar search engine. Consequently, the literature is rarely investigated, but is increasing steadily. The literature was performed as a comparison study with an ovalbumin-induced group or drug-treated group, and investigated the antiasthma activity of algae ethanol extract. Although many researchers have studied marine algae-derived therapeutic agents for asthma, the amount of literature is rare compared with those of herbal medicine-derived therapeutic agents. Conclusively, we suggest that many researchers should investigate and develop algae-derived therapeutic agents for asthma treatment.

Identification of a Potexvirus in Korean Garlic Plants (한국 마늘 Potexvirus의 cDNA 유전자 분리 및 분포에 관한 연구)

  • Song, Jong-Tae;Choi, Jin-Nam;Song, Sang-Ik;Lee, Jong-Seob;Choi, Yang-Do
    • Applied Biological Chemistry
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    • v.38 no.1
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    • pp.55-62
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    • 1995
  • To understand the molecular structure of Korean garlic viruses, cDNA cloning of virus genomic RNA was attempted. Virus particles were isolated from virus-infected garlic leaves and a cDNA library was constructed from garlic virus RNA. One of these clones, S81, selected by random sequencing has been identified as a member of potexvirus group other than potyvirus and carlavirus. The clone is 873 bp long contains most of the coat protein (CP) coding region and 3'-noncoding region including poly(A) tail. A putative polyadenylation signal sequence (AAUAAA) and the hexanucleotide motif (ACUUAA), a replicational cis-acting element conserved in the 3'-noncoding region of potexvirus RNAs are noticed. The clone S81 shows about 30-40% identity in both nucleotide and amino acid sequences with CPs of potexviruses. The genome size of the virus was analysed to be 7.46 knt by Northern blot analysis, which was longer than those of other potexviruses. The open reading frame encoding CP was expressed as a fusion protein (S81CP) in Escherichia coli and the recombinant protein was purified by immobilized metal binding affinity chromatography. Polyclonal antibody was raised against S81CP in rabbit to examine the occurrence of garlic potexvirus in Korean garlic plants by immunoblot analysis. Two virus protein bands of Mr 27,000 and 29,000 from garlic leaf extract of various cultivars reacted with the antibody. It was shown that Mr 27,000 band might not be a degradation product of Mr 29,000 band, suggesting that two types of potexvirus different in size of coat protein could exist in Korean garlic plants.

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