• Title/Summary/Keyword: Healing-rate

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Effect of Propolis on Healing of Full-thickness Skin Wound in Rabbits (Propolis가 토끼의 전층 피부 창상치유에 미치는 영향)

  • 정성일;강성수;조성구;정석화
    • Journal of Veterinary Clinics
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    • v.17 no.1
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    • pp.62-69
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    • 2000
  • The effects of vaselin, silver sulfadiazine and propolis on healing of full-thickness skin defects were evaluated in rabbits. Two wounds measuring 2{times}2cm$ were created bilaterally (4 wounds/rabbit) on the dorsolateral aspect of the trunk of 17 Ne Zealand white. Wound treatments were evenly distributed 4 sites, using a Latin square design. Treatments evaluated were: vaselin(group A), silver sulfadiazine(group B), 5% propolis (group C) and 10% propolis(group D). On days 3, 7 and 14, mean percentage of wound in group A, B, and C. On days 21 and 28, mean percentage of wound contraction in group D were significantly higher than those of groups B and C, but were not higher than that of group A. Microscopically fibersis and epithelialization were noticed on days 14 and 28 after wounding in all group. Rates of fibrosis of collagen fiber and epithelialization of groups C and D were exceeded those of groups A and B. All wounds in all group achieved 100% healing during the 28-day study period. Results indicate that use of propolis as would ointment on full-thickness skin wounds in rabbits increase rate of healing.

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Wound Healing Effect of 525 nm Green LED Irradiation on Skin Wounds of Male Sprague Dawley Rats

  • Cheon, Min-Woo;Park, Yong-Pil
    • Transactions on Electrical and Electronic Materials
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    • v.11 no.5
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    • pp.226-229
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    • 2010
  • Many methods exist that promote wound healing, including light therapy, which consists of light beams that assist the human body in treating and sterilizing wounds, as well as regenerating cells. Irradiation with specific wavelengths of either laser or LED light has been shown to induce beneficial proliferation of fibroblasts that, depending on the size of the wound, can be effective in promoting wound healing. The experiments in this study utilized 8 week old 250~300 g Male Sprague Dawley Rats (ILAR Code: NTacSam:SD) and included a non-irradiation group and a 525 nm green LED irradiation group (n of each group = 7). In experiments animals were allowed to rest for 24 hours after wounds had been excised, which was followed by non- irradiation or 525 nm green LED irradiation therapy one hour per day for 9 days. Immunohistochemical staining was conducted for cytokeratin in order to precisely measure the defect size. In addition, Masson's trichrome staining was utilized in order to compare levels of collagen between the 525 nm green LED irradiation group and the non-irradiation group. Animals exposed to 525 nm green LED irradiation (p<0.05) healed at a faster rate and had increased collagenosis compared with the non-irradiated control group. Thus, treatment with 525 nm green LED irradiation had a beneficial effect on wound healing and should be considered as a possible alternative to low power laser treatment.

Ligament Injuries and Healing (인대 손상과 치유)

  • Bin Seong-Il;Joo Dong-Man;Choi Jun-Weon
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.2 no.2
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    • pp.86-91
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    • 2003
  • Ligaments are functionally very important structures in the joints of human. Many studies have been performed about injury mechanisms and mechanical properties of ligaments. Although treatment methods of injured ligaments have continually improved, many questions still remain about enhancing the rate, quality and completeness of ligament healing. For studies and understanding of the healing of ligaments that have important functions in the joint, this article reviews histological characteristics, mechanical properties and process of healing.

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An Developmental Study of Artificial Skin Using the Alginate Dermal Substrate: Preliminary Report (알지네이트 진피지지체 인공피부 개발: 예비보고)

  • Park, Dae Hwan;Shin, Jeong Im
    • Archives of Plastic Surgery
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    • v.33 no.1
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    • pp.21-30
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    • 2006
  • Alginate, a polymer of guluronic and mannuronic acid, is used as a scaffolding material in biomedical applications. The research was to produce highly-purified alginate from seaweeds and to evaluate the efficacy of alginate as dermal substrate. Our alginate purification method showed a production rate as high as 25%. The purified alginate contained little polyphenol contents and endotoxin, proteins. For study of wound healing, full thickness skin defects were made on the dorsal area of the animal models. And then alginate, fibroblast-growth-factor mixed alginate, alginate-collagen complex, vaseline gauze as control were applied on the wound, respectively, and were evaluated grossly and histopathologically. For biocompatibility test, alginate and alginate-collagen complex discs were implanted on the back of Sprague-Dawly rats. Four weeks after implantation, the animals were examined immunologically against alginate and collagen. Alginate and FGF-mixed alginate, alginate-collagen complex group showed statistically higher percentage of wound contraction and wound healing than control group(p<0.05). Alginate-collagen complex group and FGF-mixed alginate group showed statistically higher percentage of wound healing than alginate group. The experiment of biocompatibility and immunologic reaction against impanted alginate or collagen needs more investigation. Highly-purified alginate from seaweeds by our purification method, showed the effect of wound healing, and addition of FGF or collagen increases the alginate's wound healing effect. It shows the possibility of alginate as a dermal substrate.

Effects of Egg Shell Membrane Hydrolysates on Skin Whitening, Wound Healing, and UV-Protection

  • Park, Ki-Moon;Yoo, Jin-Hee;Shin, Young-Jae
    • Food Science of Animal Resources
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    • v.32 no.3
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    • pp.308-315
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    • 2012
  • This study was conducted to examine the effects of egg shell membrane hydrolysates (ESMH) on skin whitening, wound healing, and UV-protection. ESMH was divided into three groups by molecular weight (Fraction I: above 10 kDa of ESMH, Fraction II: 3 kDa-10 kDa of ESMH, Fraction III: below 3 kDa of ESMH). As a result, all of ESMHs showed over 90% of protein contents. The wound healing experiment using HaCaT cells showed that the fraction I was slightly superior to other fractions depending on the concentration though it was not significantly different. In the experiments of inhibition of tyrosinase and L-3,4-dihydroxyphenylalanine (L-DOPA) oxidation to verify the L-DOPA whitening effect, the whole ESMH (before fractioning) showed a similar amount of inhibition effect with arbutin (control). In the inhibition of melanin formation in B16-F1 melanoma cells, the fraction I showed a high inhibitory effect. In the experiment for protecting the skin from ultraviolet rays using HaCaT cells, all the fractions showed a higher rate of cell viability than the control. In conclusion, this study confirmed that the cosmetic effects of ESMHs such as skin whitening, wound healing, and UV-protection, which were divided depending on the molecule weight. We could confirm that the possibility of ESMHs as a material for functional cosmetics.

Development of capsule fabrication process that can control selective fracture location based on PDMS mold (PDMS 몰드 기반의 선택적 파단 위치 제어가 가능한 캡슐 제작 공정 개발)

  • Lim, Tae-Uk;Cheng, Hao;Wang, Shu-Le;Hu, Jie;Jung, Won-Suk
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2022.04a
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    • pp.245-246
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    • 2022
  • Recently, research on the self-healing of concrete using bacteria has been actively conducted. The self-healing method using bacteria has a low self-healing rate and the surrounding environment of the fracture site is very important. A previous study to solve this problem involves the manufacture of capsules using 3D printing. Fracture position control was an important topic in 3D printing-based capsules. In this study, to compensate for the shortcomings of existing studies, a capsule capable of selective destruction location control was produced using PDMS-based molds that are not restricted by the environment. Resin capsules were prepared for each part using several molds and a bonding surface was arranged. In order to verify this on the bonding surface, fracture strength and wave unit values were analyzed through a three-way compression experiment. It can be seen that as the curing time increases, the deviation between samples decreases. In addition, through experiments, it was confirmed that the junction surface and wave unit values coincide in all three directions. It can be used for self-healing research using various solutions.

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A Study on Pattern Recognition to Compute Guidelines Based on Evidence for Ecological Healing Environment at Agha Khan Hospital in Karachi - Focused on Human Thermal Comfort Model (HTCM), for Karachi, using Climate Consultant Program

  • Shaikh, Javaria Manzoor;Park, Jae Seung
    • KIEAE Journal
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    • v.15 no.2
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    • pp.27-35
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    • 2015
  • Purpose: Healthcare is on the whole a personal and critical service that consumer's use, whereas hospitalization is as a rule painful, because nature nurtures and Sun Light Luminosity for healthcare settings is considered healing. The performance and design of climate responsive buildings such as AKU requires a detailed study of attributes of climate both at micro as well as macro level. The therapeutic value of contact with nature through window view, greenery and landscape is calculated there. Method: A two prong strategy is been devised for this article, at micro level three typical morphologies are analysed by creating same environment of neighboring building on sun shading chart, radiation and temperature range. Since the analysis of local climate helps to determine the design strategies for hospital Healing Environment which is suitable for Karachi climate; in order to track the macro climatic behaviour, a considerable analysis of psychometrics chart for AKU Karachi are designed on Climate Consultant (CC) and analysed by Machine Learning. Climate Consultant proposes different design strategies suitable for Karachi. And on the other hand time wise illumination sources for clinical area which are then measured on psychrometric chart- according to singular space: multi patient admission, secondly: acute ambulatory ward, and tertiary: multi windowed space according to the mushrabiyah and sky light pattern. Result: Our findings support the hypothesis that windowed wall is 75-80% more healing wall; an accelerated evidence was found for healing at macro level if the form of the hospital is designed according to the climatologically preferences, whereas at micro level: the light resource becomes the staff attentiveness determinant. In Conclusion evidence was provided that the actual form of luminosity results consequently in satisfaction while light entering from several set of windows and other sources might be valued if design according to the healing environment. The data added on the sun shading chart to calculate rays entraining into space in patient room equal to 124416.21 Watts/ meter $m^2$ is calculated as precise healing rate-and is confirmed by questionnaire from patients belonging from each clinical stage having different illnesses.

Biological Change by Forest Healing according to Sasang Constitution : preliminary study (사상체질별 숲치유의 생체학적 변화 : 예비연구)

  • Hong, Sun-Gi;Choi, Eun-Ju;Sun, Seung-Ho;Choi, Ga-Young;Lee, Sun-Ju;Han, In-Sik;Lee, Jae-Hun;Yoo, Jun-Sang
    • Journal of Sasang Constitutional Medicine
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    • v.23 no.4
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    • pp.487-502
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    • 2011
  • 1. Objective This study was performed to research the biological change of forest healing according to Sasang constitution. 2. Methods Forty seven applicants are involved in this study. They were classified into three groups(Soyangin, Taeeumin, Soeumin) by QSCC II. And then they participated in forest healing program from March 26 to March 27 in 2011. We performed before and after experiment, including vital sign, electroencephalography(EEG), heart rate variability(HRV), complete blood cell count(CBC), biochemical test(BC), and stress hormones. 3. Results Men had the relaxative effect of tension. While, the group of women and Soyangin was more sensitive to sudden environmental change than the group of men or other constitutions. The tension of women and soyangin's group increased after the forest healing program. Soeumin group showed reduced diastolic blood pressure after the forest healing program. 3. Conclusions Forest healing program has shown better efficacy in relaxation in men than women, in lowering diastolic blood pressure in Soeumin group than other constitutional groups. However a single positive result within this study should be carefully interpreted.

A Study on the Convergence Education Process for the Fourth Industrial Revolution - Healing Bio Sciences Consortium Convergence Healing Major Focus - (4차 산업혁명을 대비하는 융합교육과정에 관한 연구 : 힐링바이오공유대학 융합치유전공 중심으로)

  • Lee, Jin-Hong;Song, Deok-Geon;Kwon, Hyuk
    • Journal of Engineering Education Research
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    • v.22 no.6
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    • pp.28-39
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    • 2019
  • In order to improve this, Korean universities should reorganize their curriculum such as job system research and job - based program development according to the demand of industry in order to improve their working ability due to the decrease of the school - age population and the youth unemployment rate. In this study, first, conceptualization of friendly education and definition of industry - university cooperation and analysis of cases related to friendly - educational cooperation between industry and academia, second, analysis of fusion healing majors in Healing Bio - I want to conduct research. Konkuk University Healing Bioresource College conducted a survey based on demand such as experts and industry for the development of industry - academic cooperation - friendly curriculum. As a result of this process, I developed a curriculum development committee to study the internal and external environment through the literature survey, focus group interviews, and Delphi research. The purpose of this study is to develop competitiveness curriculum reflecting competitiveness of human resource development in Korea, to develop competitiveness curriculum that reflects customized opinions of societal demand, to organize systematic curriculum to have practical ability, to strengthen the employment link through development of curriculum in accordance with the direction of human resources development, We will make contribution to build the system of operation from the center to the consumer center, evaluation of the practical ability through the curriculum and the feedback system.

Application of cold atmospheric microwave plasma as an adjunct therapy for wound healing in dogs and cats

  • Jisu Yoo;Yeong-Hun Kang;Seung Joon Baek;Cheol-Yong Hwang
    • Journal of Veterinary Science
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    • v.24 no.4
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    • pp.56.1-56.13
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    • 2023
  • Background: Cold atmospheric plasma is a novel innovative approach for wound care, and it is currently underrepresented in veterinary medicine. Objectives: To investigate the efficacy and safety of using cold atmospheric microwave plasma (CAMP) as an adjunct therapy for wound healing in dogs and cats. Methods: Wound healing outcomes were retrospectively analyzed using clinical records of client-owned dogs and cats who were first managed through standard wound care alone (pre-CAMP period) and subsequently via CAMP therapy (CAMP period). The degree of wound healing was estimated based on wound size and a modified wound scoring system. Results: Of the 27 acute and chronic wounds included in the analysis, 81.48% showed complete healing after the administration of CAMP as an adjunct therapy to standard care. Most wounds achieved complete healing in < 5 weeks. Compared with the pre-CAMP period, the rate of wound healing significantly increased every week in the CAMP period in terms of in wound size (first week, p < 0.001; second week, p = 0.012; third week, p < 0.001) and wound score (first week, p < 0.001; second week, p < 0.001; third week, p = 0.001). No adverse events were noted except for mild discomfort and transient erythema. Conclusions: CAMP is a well-tolerated therapeutic option with immense potential to support the treatment of wounds of diverse etiology in small animal practice. Further research is warranted to establish specific criteria for CAMP treatment according to wound characteristics.