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이준모 국립생물자원관 2021 Journal of species research Vol.10 No.2
Algal genomics approaches provide a massive number of genome/transcriptome sequences and reveal the evolutionary history vis-à-vis primary and serial endosymbiosis events that contributed to the biodiversity of photosynthetic eukaryotes in the eukaryote tree of life. In particular, phylogenomic methods using several hundred or thousands of genes have provided new insights into algal taxonomy and systematics. Using this method, many novel insights into algal species diversity and systematics occurred, leading to taxonomic revisions. In addition, horizontal gene transfers (HGTs) of functional genes have been identified in algal genomes that played essential roles in environmental adaptation and genomic diversification. Finally, algal genomics data can be used to address the pangenome, including core genes shared among all isolates and partially shared strain-specific genes. However, some aspects of the pangenome concept (genome variability of intraspecies level) conflict with population genomics concepts, and the issue is closely related to defining species boundaries using genome variability. This review suggests a desirable future direction to merge algal pangenomics and population genomics beyond traditional molecular phylogeny and taxonomy.
이준모,김권일,황병연,Lee, Jun-Mo,Kim, Kwon-Il,Hwang, Byung-Yun 대한미세수술학회 2005 Archives of reconstructive microsurgery Vol.14 No.1
Purpose: Authors have performed free tissue transplantation in the upper and lower extremities with sensory flaps and evaluated the sensory function recovery. Materials and methods: Between 1992 through 2004, sensory free flap articles published in the journal of the Korean microsurgical society, were reviewed and recovery of sensory function was assessed by static two-point discrimination test. Results: Static two point discrimination test showed average 6.7 mm in the thumb, average 12 mm in the hand and 7 cm of the dorsalis pedis flap, 20.5 mm of the lateral arm flap and over 8 cm of the forearm flap in the foot. Conclusion: Sensory flaps provide the protective and useful coverage in the upper and lower extremities and have benefit for activities for daily life in free tissue transferred patients.
하지에 시행한 박근 유리 판 이식술 - 32예 분석 -
이준모,김학지,김용민,박재규,Lee, Jun-Mo,Kim, Hak-Ji,Kim, Yong-Min,Park, Jae-Kyu 대한미세수술학회 2004 Archives of reconstructive microsurgery Vol.13 No.1
Purpose: To cover the exposed tendons and bones after trauma and cure the concomitant osteomyelitis in the lower extremities, gracilis muscle free flaps are frequently preferred. 32 cases of gracilis muscle free flap we had done were analysed according to the indications, specification of flap length and width, pedicle length, vessels used in the anastomosis and final healing after at least over 1 year follow up. Materials and methods: From August 1995 through November 2002, we have performed 32 cases of gracilis muscle free flap transplantation with the general microsurgical procedures in the lower extremities. Open fracture of the middle and distal tibia were 12, exposed heel 6, crushing injury in the foot 5 cases, open fracture of the ankle 4, chronic osteomyelitis of the tibia 3 and osteomyelitis of the tarsal bones 2. Tailored flap length were ranged from 16 cm to 4 cm, width were from 5cm to 4cm. Pedicle length averaged around 4 cm. Anastomosis of one artery and two veins in both of donor and recipient were performed in 17 cases and one artery and one vein in 15 cases. Results: All flaps were survived, except 2 cases. Final flap healing was satisfactory to both of the patients and microsurgeon. Conclusion: Gracilis muscle free flaps are frequently chosen to cover the exposed components and cure the osteomyelitis in the lower extremities.
백서의 좌골신경에서 정맥 및 골격근을 이용한 결손신경 봉합술에 대한 연구
이준모,Lee, Jun-Mo 대한미세수술학회 1997 Archives of reconstructive microsurgery Vol.6 No.1
A peripheral nerve when approximation of the ends imparts tension at the anastomosis and with a relatively long segment defect after excision of neuroma and neurofibroma cannnot be repaired by early primary suture. The one of the optimistic reconstruction method of severed peripheral nerves is to restore tension-free continuity at the repair site putting an autogenous nerve graft into the neural gap despite of ancipating motor or sensory deficit of the donor nerve area. To overcome the deficit of the autogenous nerve graft, several other conduits supplying a metabolically active environment which is able to support axon regeneration and progression, providing protection against scar invasion, and guiding the regrowing axons to the distal stump of the nerve have been studied. An author have used ipsilateral femoral vein, ipsilateral femoral vein filled with fresh thigh muscle, and autogenous sciatic nerve for the sciatic nerve defect of around 10 mm in length to observe the regeneration pattern in rat by light and electron microscopy. The results were as follows. 1. Light microscopically regeneration pattern of nerve fibers in the autogenous graft group was more abundant than vein graft and vein filled with muscle group. 2. On ultrastructural findings, the proxial end of the graft in various groups showed similar regenerating features of the axons, myelin sheaths, and Schwann cells. The fascicular arrangement of the myelinated and unmyelinated fibers was same regardless of the type of conduits. There were more or less increasing tendency in the number and the diameter of myelinated fibers correlated with the regeneration time. 3. In the middle of the graft, myelinated nerve fibers of vein filled with muscle group were more in number and myelin sheath was thinner than in the venous graft, but the number of regenerating axons in autogenous nerve graft was superior to that in both groups of the graft. The amount of collagen fibrils and amorphous materials in the endoneurial space was increased to elapsed time. 4. There was no difference in regenerating patterns of the nerve fibers of distal end of the graft. The size and shape of the myelinated nerve fbers were more different than that of proximal and middle portion of the graft. From the above results, the degree of myelination and regenerating activity in autogenous nerve is more effective and active in other types of the graft and there were no morphological differences in either ends of the graft regardless of regeneration time.