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幼若家兎의 關節軟骨 및 骨端成長板에 Kirschner wire 및 screw 揷入이 미치는 影響에 關한 實驗的 硏究
白南仁,邊永壽 고려대학교 의과대학 1976 고려대 의대 잡지 Vol.13 No.1
The effect of surgical traumata upon the epiphyseal plate of the growing bone has been controversial among many authors. The resultant deformity subsequent to the epiphyseal plate injury yields numerous different pattens and any of the explarations of the pathogenesis is also not accepted for all. Therefore, the author made an experiment to elucidate more clearly the histological changes of the epiphyseal plate of immature rabbits following insertion of Kirschner-wire and screw. Thirty rabbits weighing 700-1200gm mere divided into 2 groups, as following and the direction of longitudinal insertion form articular surface of the epiphysis into metaphysis of the distal femur. Group 1: Insertion of Kirschner-wire Group 2: insertion of screw The animals were sacrificed at 1,2,4,8, and 10 weeks after the operative procedure and the histological examination of the injured epiphyseal plate of distal femur were made. The summary of the histological findings were follows: 1. The margin of the epiphyseal plate adjoining the Kirsckner wire showed a new osseous tissue which formed a bony bridge running from the epiphysis to the metaphyseal bony trabeculae. 2. The margin of the damaged epiphyseal plate adjoining the screw revealed new bone formation and the amounts of the reactive new bone is less than Kirschner-wire. 3. Histological findings of the epiphyseal plate showed to be uniform and normal except in the adjacent area of the Kirschner-wire and screw.
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식용 식물자원으로부터 활성물질의 탐색-IV. 달래(Allium monanthum Max.)로부터 Galactosyldiglyceridem의 분리
백남인,안은미,김해영,박영두,장영진,김세영 한국생명과학회 2001 생명과학회지 Vol.11 No.1
n-BuOH fraction obtained from MeOH extracts of Allium monanthum was applied to repeated silica gel column chromatographies to give a glycosylglyceride. The chemical structure of the compound was determined to be 1-O-linolenoyl-2-O-linolenoyl-3-O-$\beta$-D-galactopyranosyl-누-glycerol on the basis of NMR data and by the adaptation of chemical methods.
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Cirsium속 식물로부터 새로운 polyacetylene의 분리
백남인,박종대,이유희,정소영,김신일 대한약학회 1995 약학회지 Vol.39 No.3
A novel polyacetylene was isolated from Cirsium spp., as well as five known ones, and its chemical structure was determined as heptadeca-1-en-11.13-diyne-8R, 9S, 10R-triol(1) on the basis of spectral data and chemical reactions. $^{1}$H-and $^{13}$C-NMR data of these polyacetylenes were completely assigned by the appfication of 2D-NMR techniques.
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Steroids from the Aerial Parts of Artemisia princeps Pampanini
백남인,이대영,최명숙 한국약용작물학회 2006 韓國藥用作物學會誌 Vol.14 No.5
Three stigmastane-type sterols and one ergostane-type sterol were isolated from the ethyl acetate soluble fractionof the aerial parts of Artemisia princeps Pampanini (Sajuarissuk). From the results of physico-chemical data includingNMR, MS and IR, the chemical structures of the compounds were determined as stigmasta-5,22-dien-3β-ol (stigmasterol, 1),stigmast-5-en-3β-ol (β-sitosterol, 2), 5,8-epidioxy-5β,8β-ergosta-6,22-dien-3β-ol (ergosterol peroxide, 3), and β-sitosterol 3-O-β-D-glucopyranoside (daucosterol, 4).
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생강(Zingiber officinale R.) 근경으로부터 항산화 활성물질의 분리
백남인,방면호,허한순,송정춘,김선림 한국농화학회 2001 Applied Biological Chemistry (Appl Biol Chem) Vol.44 No.3
The root of Zingiber officinale R. was extracted with 80% aqueous MeOH, and the concentrated extract was fractionated with EtOAc, n-BuOH and water phases. The EtOAc fraction exhibited most potent antioxidant activity among them, and two active compounds were isolated by activity-guided separation using repetitive silica gel column chromatography. On the bases of spectral data and the chemical characteristics, the structure of the compounds were determined as 6-shogaol and 12-shogaol, respectively. The EC_(50) values of them were evaluated as 26.4 μM and 22.5 μM, respectively, where these values were higher than the commercial antioxidants, such as, BHA, BHT and α-tocopherol.
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홍화(Carthamus tinctorius L.) 로부터 활성물질의 분리
백남인,안은미,방면호,남지연,김융희,권병목 한국농화학회 1998 Applied Biological Chemistry (Appl Biol Chem) Vol.41 No.2
The MeOH extracts obtained from the flower petals of Carthamus tinctorius were solvent-fractionated with EtOAc, n-BuOH, and H₂O, successively. From the n-BuOH exact 2 flavonoid compounds were isolated through the repeated silica gel column chromatographies. From not only the results of physico-chemical data including HMBC but also the adaptation of acid hydrolysis, the chemical structures of the compounds were determined as 3-Ο-[β-D-glucopyranosyl (1→2) β-D-glucopyranosyl] kaempferol and 3-Ο-[α-L-rhamnopyranosyl (1→6) β-D-glucopyranosyl] kaempferol. The compounds exhibited IC_(50) values in Grab2-Shc activity to be 43 and 47 ㎍/㎖, respectively.
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