• Journal of Acupuncture Research
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• 제19권4호
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• pp.112-123
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• 2002

Objective : This study was designed to find out the effects of Carthami-Flos herbal acupuncture theraphy on neck pain due to soft tissue damage. Methods : This study was carried out for 34 patients who had neither structural defectiveness of cervical spine nor neural injury but simple soft tissue damage among poeple who visited Hye-dang Oriental Hospital from December 1, 2001 to June 15, 2002. Group A of 17 patients was taken Carthami-Flos herbal acupuncture treatment. Group B of 17 patients was taken common acpuncture treatment. Results : We have found out the good effects of Cathami-Flos herbal acupuncture on the patients due to soft tissue damage. Conclusion : The Carthami-Flos herbal acupuncture treatment is useful on the patients of neck pain due to soft tissue damage.

• Journal of Acupuncture Research
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• 제19권6호
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• pp.67-79
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• 2002

Objective : This study was designed to find out the effects of Korean bee-venom therapy on neck pain due to soft tissue damage. Methods : This study was carried out for 34 patients who had neither structral defectiveness of cervical spine nor neural injury but simple soft tissue damage among poeple who visited Hye-dang Oriental Hospital from March 4, 2002 to September 30, 2002. Group A of 17 patients was taken Korean bee-venom therapy Group B of 17 patients was taken common acupuncture therapy. Results : We have found out the good effects of Korean bee-venom therapy on the patients due to soft tissue damage. Conclusions : The Korean bee-venom therapy is useful on the patients of neck pain due to soft tissue damage.

• Journal of Chest Surgery
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• 제26권9호
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• pp.667-676
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• 1993

Boprosthetic cardiac valves fail from biological and metabolic as well as mechanical reasons, and the limited durability is the main factor of marked withdrawal in their clinical use. Starting the use of bioprosthetic valves in 1976, up to the end of 1992, the consecutive 178 patients have undergone re-replacement of glutaraldehyde-treated xenograft valves for primary tissue failure [PTF]among the patients who had initial valve replacement at Seoul national University Hospital. The explanted valves were 69 porcine aortic [51 Hancock, 12 Angell-Shiley and 6 Carentier-Edwards] and 141 bovine pericardial [129 standard-profile and 12 low-profile ionescu-Shiley] valwes, with an overall incidence of PTF of 15.2%. The operative mortality rate of re-replacement was 5.1%. Calcific degeneration and tissue damage in relation to calcification were the most frequent modes of PTF on gross examinatin of the explanted valves resulting hemodynamically in valvular regurgitation. The number of Hancocg porcine and the standard-profile Ionescu-Shiley valves in valves in mitral position failed more often from tissue damage [tears, holes, and loss or destruction of cuspal tissue] than calcification [68.3% vs. 39.0%, p<0.01] with resultant regurgitation in 61%, the Ionescu-Shiley valves in the same position in 53%. The tendency of more calcification than tissue damage[71.3% vs. 33.3%, p<0.001]with stenosis in 53%. The tendency of more calcification and immobility of cusps in the latter group was partly explainable by the inclusion of patients of pediatric age. Observation made in this study suggest : many of bioprosthetic valves would fail from calcification and tissue damage : some fail prematurely because of mechanical stress probably owing to the valve design in construction ; andeven those valves escaped early damage would be subject to calcify in the prolonged follow-up period. In conclusion, at the present time, the clinical use of bioprostheticxenograft valves seems to be quite limited until further improvement in biocompatibility and refinement in valve design in manufacture are achieved.

• 한국콘텐츠학회논문지
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• 제9권12호
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• pp.376-384
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• 2009

본 연구는 방사선조사 후 신장 조직의 손상과 방어기전을 알아보고자 생쥐 모델을 이용하여 미세구조를 관찰하였다. 광학현미경(LM)의 관찰 결과; 5Gy 조사 후 10일된 신장 조직에서는 정상조직과 비교하여 사구체가 위축되었으며, 10Gy 관찰에서는 곱슬세관(convoluted tubules)의 막이 파괴되어 세포질이 유출되었다. 투과전자현미경(TEM) 관찰 결과; 5Gy 조사에서는 사립체의 막이 파괴되거나 함몰된 것으로 관찰되었으며, 내부 크리스테의 형태도 소실되었다. 또한 일부에서는 핵막의 파괴도 확인되었다. 10Gy 조사한 조직에서는 기저막의 파괴가 뚜렷하게 관찰되고, 용해소체도 비후 된 것을 관찰하였다. 하지만 프로폴리스 섭식한 실험 군에서는 소기관의 형태가 뚜렷하게 관찰되었고, 핵막과 염색질도 선명하게 관찰되어 방어효과를 확인할 수 있었다.

• 대한물리치료과학회지
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• 제8권2호
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• pp.1091-1097
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• 2001

The main experiments was investigated the skin tissue damage changing for the skin bum having influence on the skin and the liver and also observed the radical liver weight, ALT in the serum, the fluctuating of AST for the skin bum causing to the liver damage. Anatomically the edema formation of skin after thermal injury was showed, and skin bum increased liver weight (% of body weight, p<0.05) and the activity of serum aniline aminotrasferase (p<0.05), and also histologically induced wes of epidermal layer, protein degeneration of connective tissue, local hemorrhage and degeneration of glandular epithelium in the skin tissue. Liver tissue showed the evidences of postbum damage, they were sinusoidal dilatation, cell swelling, infiltration of inflammatory cells.

• 대한방사선기술학회지:방사선기술과학
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• 제43권1호
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• pp.29-34
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• 2020

Mitochondria was observed much around the nuclear membrane of liver tissue where the energy metabolism process is active. Testis tissue had a large number of undifferentiated cells, and cristae in Inner membrane of Mitochondria was not observed clearly. Morphological damage occurred first in Inner membrane rather than the outer membrane. The kidney tissue was clearly observed in the form of cristae. Radiation-induced damage occurred at the edges of both ends, and the membrane was observed bursting with the thickness of the outer membrane. Small intestine cells were observed in many mitochondria in the tissues around the villus, where bowel movements were active. Morphological damage occurred with the outer and inner membranes getting tangled. Mitochondria sensitivity to radiation was sensitized in testis and small intestine tissues, and kidney, ovary and liver tissues were found to be resistant.

• KSBB Journal
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• 제26권3호
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• pp.183-188
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• 2011

Adult stem cells, which have characteristic of self-renewal and multipotency, are specialized cell types, responsible for the tissue regeneration of the damaged tissue. Recent studies suggest that stem cells senescence (or stem cells' ageing) is closely associated with the variety of ageing-related phenotypes such as tissue atrophy, degenerative diseases and onset of cancers. During ageing, declining of stem cells function and subsequently occurring mal-differentiation of stem cells would be important to understand the biological process of development of ageing-related phenotypes such as tissue degenerations and cancers. This review focuses on the DNA damage stress as a cause of senescence of stem cells and their mal differentiation, which is closely link to defect of regeneration potentials and neoplastic transformation. Understanding of molecular mechanisms governingsuch events is likely to have important implications for developing novel avenues for balancing tissue homeostasis longer period of time, further leading to 'Healthy ageing'.

• Archives of Plastic Surgery
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• 제40권5호
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• pp.517-521
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• 2013

Background Diabetes is characterized by chronic hyperglycemia, which can increase reactive oxygen species (ROS) production by the mitochondrial electron transport chain. The formation of ROS induces oxidative stress and activates oxidative damage-inducing genes in cells. No research has been published on oxidative damage-related extracellular superoxide dismutase (EC-SOD) protein levels in human diabetic skin. We investigated the expression of EC-SOD in diabetic skin compared with normal skin tissue in vivo. Methods The expression of EC-SOD protein was evaluated by western blotting in 6 diabetic skin tissue samples and 6 normal skin samples. Immunohistochemical staining was also carried out to confirm the EC-SOD expression level in the 6 diabetic skin tissue samples. Results The western blotting showed significantly lower EC-SOD protein expression in the diabetic skin tissue than in the normal tissue. Immunohistochemical examination of EC-SOD protein expression supported the western blotting analysis. Conclusions Diabetic skin tissues express a relatively small amount of EC-SOD protein and may not be protected against oxidative stress. We believe that EC-SOD is related to the altered metabolic state in diabetic skin, which elevates ROS production.

• Journal of Nutrition and Health
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• 제29권7호
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• pp.721-728
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• 1996

The level of oxidative tissue damage caused by free radicals generated from ethanol oxidation was determined in the myocardium of chronic ethanol fed-rats and the protective action of various radical scavenging enzymes was monitored, also. Adult male Sprague-Dawley rats were given ethanol in an amount of 36% of total calories via Lieber-DeCarli liquid diet for 6 weeks. Control group was pair-fed with the diet containing isocaloric amount of dextrin-maltose instead of ethanol. Chronic ethanol administration resulted in the increased amount of myocardial thiobarbituric acid reactive substance(TBARS), th parameter of lipid peroxidation, under our experimental condition. Chronic ethanol ingestion did not cause any change in activities of either glutathione peroxidase or glutathione reductase and glucose-6-phosphate dehydrogenase were decreased after ethanol treatment. Therefore, chronic ethanol administration seemed to cause considerble changes in cellular defense function against oxidative tissue damage in rat myocardium through glutathione utilizing system and radical generation system. However the ultimate net result of chronic ethanol inestion on the myocardium of rat was the oxidative tissue damage revealed by increased TBARS content.

• 한국소음진동공학회논문집
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• 제19권9호
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• pp.928-934
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• 2009

Underwater impulsive sound such as underwater blasting noise, piling noise and stone breaking hammer affects marine animal hearing response and organs. This study describes the characteristics of various impulsive noise from waterfront construction site and their effect on fish. Time constant, peak pressure, energy and SEL(sound exposure level) of four different underwater impulsive sounds are quantified. Auditory and non-auditory tissue damage ranges are derived by comparing their quantities to the exposure criteria for fish. Damage ranges of auditory tissue and non-auditory tissue of underwater boring blast of 150 kg of charge, are about 100 m and 300 m, respectively. Other three impulsive sounds also gives damage effects but less than that of underwater boring blast.