• Title/Summary/Keyword: Regeneration

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Study on Effect of Moxibustion in Myofiber Regeneration and Muscle fatigability (뜸이 근섬유 조직재생 및 피로회복에 미치는 영향에 대한 문헌적 고찰)

  • Ko, Min-Kyung;Lee, Jeong-Hwan;Hong, Kwon-Eui
    • Journal of Acupuncture Research
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    • v.28 no.6
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    • pp.19-26
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    • 2011
  • Objectives : Although moxibustion is one of the most frequently used methods in oriental medicine, effect of moxibustion in myofiber regeneration and muscle fatigability is hardly studied. This study was researched to observe the effect of moxibustion in myofiber regeneration and muscle fatigability. Methods : We reviewed studies which contained moxibustion and published after 2000s in Pubmed. We also reviewed domestic studies in RISS, KISS and DBPIA, but only three studies were researched. Results : In myofiber regeneration, moxibuston has improved blood flow in muscle tissue and recover tissue injuries fast. Especially, moxibustion trigger an increse of HSP levels, which protect the cell against irreversible damage, apoptosis and death. Thus, that helps to stimulate myofiber regeneration. In many studies, as moxibustion stimulate PMRs and decrease fatigue substances, such as lactate acid and creatinine, so moxibustion is considered to be effective to recover and prevent muscle fatigability. Based on such effects, moxibustion is considered to have an effect on TPs, but have been hardly studied. Conclusions : Although Moxibution is considered to be effective in myofiber regeneration and muscle fatigability, futher study is needed.

In vitro regeneration from cotyledon explants in figleaf gourd (Cucurbita ficifolia Bouch$\'{e}$), a rootstock for Cucurbitaceae

  • Kim, Kyung-Min;Kim, Chang-Kil;Han, Jeung-Sul
    • Plant Biotechnology Reports
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    • v.4 no.2
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    • pp.101-107
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    • 2010
  • An efficient plant regeneration system has been developed for figleaf gourd (Cucurbita ficifolia Bouch$\'{e}$), which is exclusively used as a rootstock for cucumber. The protocol is based on results obtained from a series of culture experiments involving different parts of the cotyledons and various media. The culture of cotyledon explants was critical for the enhancement of shoot regeneration frequency. The lower parts of the cotyledon excised at the plumule base were found to display a markedly enhanced production of adventitious shoots compared to other cotyledon regions. Culture in silver nitrate-supplemented Murashige and Skoog (MS) medium was not beneficial for shoot regeneration and suppressed root regeneration. Efficient shoot regeneration was obtained on MS medium containing 1.0 $mg\;l^{-1}$ zeatin and 0.1 $mg\;l^{-1}$ indole-3-acetic acid. Regenerated shoots successfully elongated and rooted in medium containing 0.1 $mg\;l^{-1}$ 1-naphthalene-acetic acid after 10-15 days of subculturing. The plantlets were satisfactorily acclimatized in a greenhouse and grew into normal plants without any morphological alterations.

The Role of Pericranial Flap in Surgery of Craniosynostosis (두개골 조기 유합증 수술 시 두개골막 피판의 역할)

  • Byeon, Jun-Hee;Yim, Young-Min;Yoo, Gyeol
    • Archives of Plastic Surgery
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    • v.32 no.2
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    • pp.189-193
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    • 2005
  • Reconstruction of calvarial bone defects from congenital anomaly or from bone loss due to traumatic or neoplastic processes remains a significant problem in craniofacial surgery and neurosurgery. To facilitate bone regeneration, there have been many trials such as autologous bone graft or allograft, and the addition of demineralized bone matrix and matrix-derived growth factor. Guided bone regeneration is one of the methods to accelerate bone healing for calvarial bone defects especially in children. Pericranium is one of the most usable structure in bone regeneration. It protects the dura and sinus, and provides mechanical connection between bone fragments. It supplies blood to bone cortex and osteoprogenitor cells and enhances bone regeneration. For maximal effect of pericranium in bone regeneration, authors used pericranium as a flap for covering calvarial defects in surgeries of 11 craniosynostosis patients and achieved satisfactory results: The bone regeneration of original cranial defect in one year after operation was 74.6%(${\pm}8.5%$). This pericranial flap would be made more effectively by individual dissection after subgaleal dissection rather than subperiosteal dissection. In this article, we reviewed the role of pericranium and reported its usefulness as a flap in surgery of craniosynostosis to maximize bone regeneration.

A Study on the Trade Area Analysis of the Ilsan Subway Area for the Regeneration of Main Street (일산신도시의 중심상권 활성화를 위한 상권 분석에 관한 연구)

  • Park, Dong Sun;Lee, Young Eun
    • Land and Housing Review
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    • v.10 no.1
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    • pp.1-7
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    • 2019
  • This article assumes that the first newtown has declined in Korea. Urban regeneration projects should be implemented for regeneration for CBD in Newtown as well as small local cities. The purpose of this article is to analyze the character of the subway area and to suggest the key issues for regeneartion in the subway area. Especially focussing on the local important commercial function in 5 subway areas. As a result of analyzing 5 subway areas according to basic statistical data, field interviews, and legal decline diagnostic index, all five commercial districts showed decline. In particular, the decline of Baekseok Station area appears to be serious, and there is a key factor that attracts the decline of the commercial area such as the long - term building or the closure rate of each commercial area. In addition, the vacancy rate is increasing due to large distribution facilities in new cities, the entry of new floating facilities on the outskirts, and unsold new stores, and the recession is accelerating. In this way, the signs of decline in the core of the new city are enriched, but the current Urban Regeneration Act is a legal system with a policy goal of regeneration of small and medium cities in the provinces as a system to promote the function of core bases rather than the overall redevelopment of new cities. Therefore, preemptive response is needed for the regeneration in those areas.

The Effect of Socio-Physical Regeneration on Social Network of Public Rental Residence (사회물리적재생을 통한 주거환경개선이 영구임대아파트 주민의 사회적 관계에 미치는 영향)

  • Lim, Eui-Sun;Lee, Yeun-Sook;Kim, Ju-Suck
    • Journal of the Korean housing association
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    • v.22 no.1
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    • pp.1-10
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    • 2011
  • In the 20th Century, urban regeneration was changed to holistic regeneration and Ballymun of Ireland was one of the example of leading projects which using holistic regeneration over ten years. In Deajeon, there is a successful project call as "Rainbow project", using holistic regeneration. Any previous case needs to be checked thoroughly and the result needs to be studied for next project. The purpose of this study was to delineate the effect of Socio-Physical regeneration on social network. For this research, research tool was developed to combination of previous social exclusion index. This research was a survey research which used Systematic Random Sampling. In conclusion, it was not enough time to change people's behavior dramatically but even though a change is very low, it is very meaningful. Changing from people's behavior to people's mind, is a step to a goal.

Improvement of Regeneration Efficiency from Mature Embryo and Leaf Base Segment in Korean Oat Genotypes

  • Kim Kyung-Hee;Moon Jung-Hun;Lee Sang-Kyu;Lee Byung-Moo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.49 no.4
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    • pp.349-353
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    • 2004
  • Mature embryo and leaf base segment of Korean oat were used as materials in an experiment to check plant regeneration efficiency. MS media supplemented with 2,4-dichlorophenoxyacetic acid (2,4-D), kinetin, and picloram were used for callus induction from mature embryos and leaf base segments. Three mg/l of 2,4­D and 3 mg/l of picloram in callus induction medium showed high frequency for plant regeneration from mature embryos. Leaf base segments were transferred to callus induction medium and incubated at $25^{\circ}C$ in 16/8 hr light/dark cycle for 3 weeks. Callus induction from leaf base segments of Malgwiri showed high efficiency in medium containing 3 mg/l of 2,4-D and 1 mg/l of kinetin $(91.8\%)$. In case of Samhangwiri, the combinations of phytohormones did not show significant difference. Regeneration from leaf base segments showed high frequency in shoot medium containing 1 mg/l of antiauxin, tri-iodobenzoic acid (TIBA) and 1 mg/l of 6-benzyladenine (BA). Calli induced from leaf base segments of Samhangwiri and Malgwiri in media containing 3 mg/l of 2,4-D and 3 mg/l of picloram showed high regeneration frequency. It appears that the callus initiation medium may be an important factor for subsequent plant regeneration.

Delivery of growth factor-associated genes to mesenchymal stem cells for cartilage and bone tissue regeneration

  • Ahn, Jongchan;Park, Seah;Cha, Byung-Hyun;Kim, Jae Hwan;Park, Hansoo;Joung, Yoon Ki;Han, Inbo;Lee, Soo-Hong
    • Biomaterials and Biomechanics in Bioengineering
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    • v.1 no.3
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    • pp.151-162
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    • 2014
  • Genetically-modified mesenchymal stem cells (GM-MSCs) have emerged as promising therapeutic tools for orthopedic degenerative diseases. GM-MSCs have been widely reported that they are able to increase bone and cartilage tissue regeneration not only by secreting transgene products such as growth factors in a long-term manner, also by inducing MSCs into tissue-specific cells. For example, MSCs modified with BMP-2 gene increased secretion of BMP-2 protein resulting in enhancement of bone regeneration, while MSCs with TGF-b gene did cartilage regeneration. In this review, we introduce several growth factors for gene delivery to MSCs and strategies for bone and cartilage tissue regeneration using GM-MSCs. Furthermore, we describe strategies for strengthening GM-MSCs to more intensively induce tissue regeneration by co-delivery system of multiple genes.

Effect of DPF Regeneration on Emission Characteristics in Diesel Engines (DPF 재생이 경유자동차 배출특성에 미치는 영향)

  • Moon, Taeyoung;Son, Jihwan;Yun, Hyunjin;Hong, Heekyoung;Choi, Kwangho;Kim, Jeongsoo;Kim, Heekyoung
    • Journal of ILASS-Korea
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    • v.19 no.3
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    • pp.142-148
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    • 2014
  • In this study, characteristics of gaseous pollutants and particulate matter were investigated on the condition of DPF regeneration and normal DPF condition. THC, CO, $CO_2$, NOx, and $CH_4$ were analyzed by MEXA-7200H and CVS-7100 respectively. Particulate Matter (PM) was measured by difference in weight of Membrane filter. Particle Number (PN) was measured by CPC analyzer. And Sulfate, Nitrate, Organic were measured by Aerosol Mass Spectrometer (AMS). As a result, gaseous pollutants and particulate matter were detected in higher concentration during DPF regeneration than normal DPF condition. And the PN increased by 94%, the fuel consumption was reduced by 29% on DPF generation process. Sulfate, Nitrate and Organic were undetectable level during normal DPF condition. But the highest concentration of Sulfate, Nitrate and Organic were measured as $100{\mu}g/m^3$, $20{\mu}g/m^3$ and $15{\mu}g/m^3$ respectively on DPF regeneration condition. VOCs concentrations (Benzene, Toluene, Ethylbenzene, Xylene) were analyzed by using PTR-MS. Benzene and Toluene emission have little or no change depending on DPF regeneration. But the Ethylbenzene and Xylene have comparatively low emissions on DPF regeneration.

Optimization of the Area Ratio of Regeneration to Dehumidification and Rotor Speed on the Condition of Low Regeneration Temperature (재생온도가 저온인 경우 제습로터의 재생부/제습부 면적비율과 회전속도 최적화)

  • Chung, Jae-Dong;Lee, Dae-Young;Yoon, Seok-Mann
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.19 no.7
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    • pp.521-528
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    • 2007
  • The desiccant rotor is the most essential component of desiccant cooling system, but its design relies on manufacturer's experience and principles are not yet clear in spite of a lot of theoretical/experimental work published. The mathematical modeling of desiccant rotor needs solution of coupled partial differential equations of heat and mass transfer. In this study, numerical program is developed and validated using a real desiccant rotor. The calculation results are in reasonable agreement with the experimental data and other available numerical results. Optimization of desiccant rotor on the condition of low regeneration temperature are investigated. The optimal rotor speed at which the process outlet humidity becomes minimized, shows same as that of the system optimization. Compared to high regeneration temperature, broad is the range of optimal speed of low regeneration temperature. Systematic analysis on the optimal area ratio of regeneration to dehumidification section has also been conducted.

Conditions of Protoplast Formation and Regeneration of Streptomyces mitakaensis (Streptomyces mitakaensis의 원형질체 형성 및 재생조건 연구)

  • 한순옥;이영주;이형환
    • Microbiology and Biotechnology Letters
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    • v.15 no.2
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    • pp.89-94
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    • 1987
  • The optimal conditions for the protoplast formation and regeneration of Streptomyces mitakaensis have been investigated. S. mitakaensis cells were converted to protoplast by treating with 0.1 mg/$m\ell$ of lysozyme in phosphate-tris buffer (pH 7.2) to the cells grown at the late logarithmic growth phase in the GBYN medium (gycerol 20g, beef extract 5g, yeast extract 5g, NaCl 5g in 1 liter of distilled water) contained 0.5% glycine. Cell regeneration from protoplast was accomplished in 10 days post inoculation on the R2 regeneration agar medium and at 3 days post inoculation on the H2 regeneration liquid medium. The efficiency of the regeneration was 0.l% in 3 days at 35$^{\circ}C$.

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