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盧東均,金廣植 全南大學校 農漁村開發硏究所 1987 農業科學技術硏究 Vol.22 No.-
To inrestigate the biochemical characteristics of continuous cropping soil Planted tomato plant, chemical properties, the types of humus, microorganisms'phases, and enzymes activities are examined and the results are summarized as fellows. 1) The chemical properties of the sample soil did not correspond with the continueuse cropping years. Maybe the sample soil is not suited for vegetables because the chemical properties of the soil were not good. 2) The content of humus did net have regular changes, either, But the content of humic acid was decreased with continuous cropping rearm. Fulvic acid was relatively increased with them. 3) Precipitation ratio (PQ) and FA/TC were increased with continuous cropping years, but HA/TC and the content of total carbon were decreased with them. 4) The number of bacteria, fungi, phytophthora, and prthium was increased with cropping years except actinomycetes and fusarium. 5) B/F ratio was decreased with cropping years, and it seemed that the sample soil was changed gradually into the fungi-type. 6) The activities of β-glucosidase, protease, and polygalacturonase were not shown the regular changes with cropping years.
Effect of Recombinant Bovine Somatotropin on Growth of Olive Flounder, Paralichthys of olivaceus
Rho, Sum-Rho,Kim, Pil-Youn,Lee, Young-Don,Choi, Kwang-Sik,Song, Choon-Bok The Korean Society of Fisheries and Aquatic Scienc 1999 韓國養殖學會誌 Vol.12 No.2
The recombinant bovine somatotropin (rBST) was administered to the oliver flounder, Paralichthys olivaceus, to know the effects and optimal administration frequency and dosage of the hormone. The experiment was conducted with three different treatment groups (A, B and C) designated based on the duration and administration frequency of rBST and one control (D) from April 14, 1996 to March 16, 1997. The fish of hormone treated groups grew 7.86 to 10.07% (47.45 to 60.75 g in weight) better than the control at the end of the experiment (P<0.05). No significant differences in their growth were detected among treatment groups. The distinct growth improvement was recognized four weeks after completion of the first four hormone administration. When considering water temperatures measured from the experimental tanks, the effect of rBST on the flounder was greater during the period showing relatively lower temperature. The survival rates were higher in treatment groups than in the control, revealing 98.3% (A), 98.4% (B), 97.7% (C) and 93.1% (D) during the first stage of culture; 92.7% (A), 91.3% (B), 86.7% (C) and 80.0% (D) during the second stage of culture.
노광식(Kwang Sik Rho),이준수(Joon Soo Lee),차병호(Byung Ho Cha),고창준(Chang Jun Coe) 대한소아신경학회 1995 대한소아신경학회지 Vol.2 No.2
Hypohidrotic Ectodermal dysplasia caused by faulty development of ectodermal structures. is characterized by virtual absence of eccrine and sebaceous glands : thin, dry skin : scanty hair : a characteristic facies : and dental abnormalities. The authors experienced a case of typical hypohidrotic ectodermal dysplasia in a 12 year-old male who had hypohidrosis, hypotricosis, oligodontia, and characteristic facial features. He was tolerable to heat, and well-being with normal intelligence. We report this case with brief review of literature.
Hyang-Mi Cheon,Hye-Soon Huh,Hee-Sun Rho,Kwang-Sik Choi 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
The ovarian development and oviposition response of two vector beetles of pine wood nematode, Monochamus alternatus and M. saltuarius, was investigated. The ovary structure of two beetles was investigated by means of light microscopy. The ovary of both beetles was composed of two ovaries that are connected by a common oviduct. Each of the two ovaries was consisted of twelve ovarioles, the functional units of female oogenesis. The ovary type was meroistic telotrophic with nurse cells and oocytes in the tropharium. Ovarian development of two vector beetles was completed at 12-14 days after maturation-feeding pine twigs. Aspect of accumulation of vitellogenins in the ovary of two vectors showed difference in developmental stages and major yolk proteins, differently from vitellogenin. To investigate oviposition performance of two vector beetles, we provided P. thunbergii and P. koraiensis bolts for egg laying and collected emerged adults from each pine bolts in the next year. M. saltuarius females made more oviposition wounds and entrance hole of larvae than M. alternatus on pine bolts. We also investigated whether two beetles can transmission of Bursaphelenchus xylophilus and the European type of B. mucronatus via oviposition to noninfected dead pines. 48-83% from newly emerged adults of two beetles were carried two species nematode. This results suggested that two species beetles can transmit nematodes through oviposition performance and transmitted nematodes successfully propagate in non-infected dead pines.
Fe-3Cu-3Ni 조성에 P 를 첨가한 압분체의 합금화 거동 및 소결체의 기계적 특성
노광현,이방식,이도재,류재욱 대한금속재료학회(대한금속학회) 1990 대한금속·재료학회지 Vol.28 No.9
The mechanical properties and alloying behavior of Fe-base compacts were investigated. Fe-P and Cu-P master alloys were used for preparing Fe-3Cu-3Ni-P compacts varying the composition of phosphorus from 0.2 wt% to 0.6 wt%. The compacts were sintered at 1120℃ for various time up to 180 minutes under dried hydrogen atmosphere. Remarkable increase in hardness of sintered compacts was observed by adding the phosphorus, however the tendency and the amount of increase in hardness were different with the type of phosphorus compound used. The compacts which prepared from powder mixture containing Cu-P compound powder showed higher values of sintered hardness than the specimens containing Fe-P compound powder. The dimensional expansion took place at early stage of sintering ; during heating the specimen to sintering temperature. Most of the dimensional expansion was attributed differently by the type of used P-compound ; the penetration of liquid phase between Fe particles for the compacts containint Fe-P compound powder, and the alloying phenomena for the compacts containing Cu-P compound powder during heating and sintering. The added P compound powder formed eutectic alloy during heating and melted at lower temperature than the melting point of P-compound. The liquid phase smeared out to Fe matrix and formed solid solution leaving pore at the site of liquid phase located.
Anti-inflammatory activity of AP-SF, a ginsenoside-enriched fraction, from Korean ginseng
Kwang-Soo Baek,Yong Deog Hong,Yong Kim,Nak Yoon Sung,Sungjae Yang,Kyoung Min Lee,Joo Yong Park,Jun Seong Park,Ho Sik Rho,Song Seok Shin,조재열 고려인삼학회 2015 Journal of Ginseng Research Vol.39 No.2
Background: Korean ginseng is an ethnopharmacologically valuable herbal plant with various biologicalproperties including anticancer, antiatherosclerosis, antidiabetic, and anti-inflammatory activities. Sincethere is currently no drug or therapeutic remedy derived from Korean ginseng, we developed a ginsenoside-enriched fraction (AP-SF) for prevention of various inflammatory symptoms. Methods: The anti-inflammatory efficacy of AP-SF was tested under in vitro inflammatory conditionsincluding nitric oxide (NO) production and inflammatory gene expression. The molecular events of inflammatoryresponses were explored by immunoblot analysis. Results: AP-SF led to a significant suppression of NO production compared with a conventional Koreanginseng saponin fraction, induced by both lipopolysaccharide and zymosan A. Interestingly, AP-SFstrongly downregulated the mRNA levels of genes for inducible NO synthase, tumor necrosis factor-a,and cyclooxygenase) without affecting cell viability. In agreement with these observations, AP-SF blockedthe nuclear translocation of c-Jun at 2 h and also reduced phosphorylation of p38, c-Jun N-terminalkinase, and TAK-1, all of which are important for c-Jun translocation. Conclusion: Our results suggest that AP-SF inhibits activation of c-Jun-dependent inflammatory events. Thus, AP-SF may be useful as a novel anti-inflammatory remedy.
뱀딸기(Duchesnea chrysanthe) 부위별 생리활성 비교
이광식 ( Kwang Sik Lee ),노문철 ( Mun Chaul Rho ),장영주 ( Young Joo Jang ),이재은 ( Jae Eun Lee ),최애진 ( Ae Jin Choi ),박충범 ( Chung Berm Park ),차선우 ( Seon Woo Cha ),이동진 ( Dong Jin Lee ) 한국국제농업개발학회 2010 韓國國際農業開發學會誌 Vol.22 No.3
This study was conducted to evaluate antioxidant, anti-inflammatory and anticancer activities of different plant parts in Duchesnea chrysanthe Miq. Methanolic extracts of whole plant (24.37μg/ml) had in higher antioxidant activities than fruit (124.29μg/ml), shoot (41.22μg/ml), and ascorbic acid (34.72μg/ml). Anti-inflammatory activities showed higer level in whole plant (63.56%) than fruit (24.48) and shoot (48.95). Fruits showed high level (23.06μg/ml) in anticancer activities of HeLa cell, and shoot showed high level in SK-Hepl cell as 102.80μg/ml. However, shoot showed low level to compare with doxorubicin.
Anti-inflammatory activity of AP-SF, a ginsenoside-enriched fraction, from Korean ginseng
Baek, Kwang-Soo,Hong, Yong Deog,Kim, Yong,Sung, Nak Yoon,Yang, Sungjae,Lee, Kyoung Min,Park, Joo Yong,Park, Jun Seong,Rho, Ho Sik,Shin, Song Seok,Cho, Jae Youl The Korean Society of Ginseng 2015 Journal of Ginseng Research Vol.39 No.2
Background: Korean ginseng is an ethnopharmacologically valuable herbal plant with various biological properties including anticancer, antiatherosclerosis, antidiabetic, and anti-inflammatory activities. Since there is currently no drug or therapeutic remedy derived from Korean ginseng, we developed a ginsenoside-enriched fraction (AP-SF) for prevention of various inflammatory symptoms. Methods: The anti-inflammatory efficacy of AP-SF was tested under in vitro inflammatory conditions including nitric oxide (NO) production and inflammatory gene expression. The molecular events of inflammatory responses were explored by immunoblot analysis. Results: AP-SF led to a significant suppression of NO production compared with a conventional Korean ginseng saponin fraction, induced by both lipopolysaccharide and zymosan A. Interestingly, AP-SF strongly downregulated the mRNA levels of genes for inducible NO synthase, tumor necrosis factor-${\alpha}$, and cyclooxygenase) without affecting cell viability. In agreement with these observations, AP-SF blocked the nuclear translocation of c-Jun at 2 h and also reduced phosphorylation of p38, c-Jun N-terminal kinase, and TAK-1, all of which are important for c-Jun translocation. Conclusion: Our results suggest that AP-SF inhibits activation of c-Jun-dependent inflammatory events. Thus, AP-SF may be useful as a novel anti-inflammatory remedy.