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강은영,김성근,이진성,황재삼,서동상 성균관대학교 생명과학자원연구소 1996 生命資源科學硏究 Vol.3 No.1
We have analyzed the genetic relationship among the silkworm (Bombyx mori) strains using RAPD-PCR. A total of 45 polymorphic RAPD markers amplified from 9 different primers were used to analyze the genetic relationship among the seven silkworm strains. The genetic similarity coefficients among the seven silkworm strains were estimated using the RAPD markers by UPGMA method. The genetic similarity coefficient between 127 and CS120 was 0.261. This value was lower than any other genetic similarity coefficient among the strains tested. And 127-specific RAPD band patterns were observed in 3 primers from 9 polymorphic primers used. This study makes possible phylogenetic identification among the Bombyx mori strains in the molecular level using RAPD-PCR techniques.
Atelocollagen Enhances the Healing of Rotator Cuff Tendon in Rabbit Model
Suh, Dong-Sam,Lee, Jun-Keun,Yoo, Ji-Chul,Woo, Sang-Hun,Kim, Ga-Ram,Kim, Ju-Won,Choi, Nam-Yong,Kim, Yongdeok,Song, Hyun-Seok SAGE Publications 2017 AMERICAN JOURNAL OF SPORTS MEDICINE - Vol.45 No.9
<P>Conclusion: Histological and biomechanical studies demonstrated better results in the experimental group using atelocollagen in a rabbit model of the supraspinatus tendon tear.</P>
Suh Dong Sam,Yoo Ji Chul,Woo Sang Hun,Kwak Andrew S. 한국조직공학과 재생의학회 2021 조직공학과 재생의학 Vol.18 No.4
Background: Atelocollagen is widely recognized as a biomaterial for regenerative medicine because of its good compatibility and low antigenicity. Injury of the outermost layer of articular cartilage, known as the lamina splendens, can lead to osteoarthritis (OA) and eventually full-thickness cartilage loss. The intra-articular injection of atelocollagen has been designed to restore the cartilage layer and cartilage defects in OA joints. In this study, we investigated the efficacy of atelocollagen as a cartilage supplement for joint defects. Methods: In this study, we evaluated the therapeutic effects of atelocollagen in animals with cartilage defects. Femoral groove defects were artificially created in 12 male New Zealand white rabbits, which were treated with intra-articular injection of either atelocollagen (experimental) or normal saline (control). The results were observed 3, 6, 9, and 12 weeks following macroscopic and histological evaluations. Results: At 3 weeks, cartilage tissue was restored in the experimental group, whereas the control group did not show signs of restoration. At 12 weeks, defects in both groups were filled with regenerated tissue, but the experimental group displayed a morphologically better appearance. Histologically, the regenerated tissue in the experimental group showed statistically significant improvement compared to the control group, with a structure similar to that of normal articular cartilage. Conclusion: The results showed that the intra-articular injection of atelocollagen enhanced cartilage regeneration following rabbit patellar groove defects. Therefore, intra-articular injection of atelocollagen can be used as an effective supplement for joint defects. Background: Atelocollagen is widely recognized as a biomaterial for regenerative medicine because of its good compatibility and low antigenicity. Injury of the outermost layer of articular cartilage, known as the lamina splendens, can lead to osteoarthritis (OA) and eventually full-thickness cartilage loss. The intra-articular injection of atelocollagen has been designed to restore the cartilage layer and cartilage defects in OA joints. In this study, we investigated the efficacy of atelocollagen as a cartilage supplement for joint defects. Methods: In this study, we evaluated the therapeutic effects of atelocollagen in animals with cartilage defects. Femoral groove defects were artificially created in 12 male New Zealand white rabbits, which were treated with intra-articular injection of either atelocollagen (experimental) or normal saline (control). The results were observed 3, 6, 9, and 12 weeks following macroscopic and histological evaluations. Background: Atelocollagen is widely recognized as a biomaterial for regenerative medicine because of its good compatibility and low antigenicity. Injury of the outermost layer of articular cartilage, known as the lamina splendens, can lead to osteoarthritis (OA) and eventually full-thickness cartilage loss. The intra-articular injection of atelocollagen has been designed to restore the cartilage layer and cartilage defects in OA joints. In this study, we investigated the efficacy of atelocollagen as a cartilage supplement for joint defects. Methods: In this study, we evaluated the therapeutic effects of atelocollagen in animals with cartilage defects. Femoral groove defects were artificially created in 12 male New Zealand white rabbits, which were treated with intra-articular injection of either atelocollagen (experimental) or normal saline (control). The results were observed 3, 6, 9, and 12 weeks following macroscopic and histological evaluations. Results: At 3 weeks, cartilage tissue was restored in the experimental group, whereas the control group did not show signs of restoration. At 12 weeks, defects in both groups were filled with regenerated tissue, but the experimental group displayed a morphologically better appearance. Histologically, the regenerated tissue in the experimental group showed statistically significant improvement compared to the control group, with a structure similar to that of normal articular cartilage. Conclusion: The results showed that the intra-articular injection of atelocollagen enhanced cartilage regeneration following rabbit patellar groove defects. Therefore, intra-articular injection of atelocollagen can be used as an effective supplement for joint defects. Results: At 3 weeks, cartilage tissue was restored in the experimental group, whereas the control group did not show signs of restoration. At 12 weeks, defects in both groups were filled with regenerated tissue, but the experimental group displayed a morphologically better appearance. Histologically, the regenerated tissue in the experimental group showed statistically significant improvement compared to the control group, with a structure similar to that of normal articular cartilage. Conclusion: The results showed that the intra-articular injection of atelocollagen enhanced cartilage regeneration following rabbit patellar groove defects. Therefore, intra-articular injection of atelocollagen can be used as an effective supplement for joint defects.
남동수,고삼규,김오룡,서장수,지용철,최병연,조수호 대한신경외과학회 1992 Journal of Korean neurosurgical society Vol.21 No.1
With large CPA tumors, the goal of surgery is safe total removal of the tumors and preservation of nearby neural structures. Although the suboccipital approach can be made for large CPA tumors, combined approach is more preferable method for the wide exposure of the CPA including brain stem and the lower cranial nerves. We have recently experienced favorable results by combined approach. Total removal of large tumors were obtained by these approaches. The authors present surgical points of view and a brief review of literature.