흰쥐 경골의 신연 골형성술에서 염증성 싸이토카인의 발현

황일웅(Il Ung Hwang),조태준(Tae-Joon Cho),최인호(In Ho Choi),정진엽(Chin Youb Chung),유원준(Won Joon Yoo),김은희(Eun Hee Kim) 대한정형외과학회 2004 대한정형외과학회지 Vol.39 No.1

목적: 본 연구의 목적은 신연 골형성술에서의 염증성 싸이토카인의 발현 양상을 일반 골절 치유 과정과 비교하는 것이다. 대상 및 방법: 흰쥐 경골의 단순 골절 치유 모델과 신연 골형성술 모델을 대상으로 3주에 걸쳐서 단계적으로 골 조직을 채취하였다. 총 리보핵산을 추출하고 각종 염증성 싸이토카인 발현의 시간적 변화를 검사하였다. 수술 후 7일과 9일째에 조직에서 면역조직화학 검사를 통해서 IL-6의 공간적 발현 양상을 조사하였다. 결과: IL-1β, IL-6는 단순 골절 치유 과정에서 수술 후 1일째에 발현이 절정에 달하였다가 3일째부터 발현이 감소하여 수술 전 상태로 회복되었다. IL-1β는 신연 골형성술 중 신연 기간에도 발현의 변화가 없었으나 IL-6은 신연을 시작함에 따라 다시 발현이 증가하는 양상을 보였다. 면역조직화학 검사장 IL-6은 골수 세포 뿐 아니라 연골세포, 골모세포 그리고 신연 간격의 미성숙 간엽세포에서 발현이 확인되었다. 결론: 신연 변형력에 의한 IL-6의 발현이 유도되는 것을 확인하였으며, 이는 조절된 염증 반응이 신연 골형성술 과정에서 신생골 형성에 부분적으로 기여할 가능성을 시사하는 것으로 생각된다. Purpose: The purposes of this study were to investigate the expression pattern of pro-inflammatory cytokines during distraction osteogenesis and to compare these with expression during simple fracture healing. Materials and Methods: Regenerated bones from the rat tibia subjected distraction osteogenesis and simple fracture healing models were harvested over three-week periods. Temporal expressions of mRNA of pro-inflammatory cytokines were investigated by RNase protection assay. Immunohistochemical studies for IL-6 were performed in postoperative day 7 and 9 tissue section specimens. Results: IL-1β and IL-6 produced detectable signals, while IL-1α, TNF α and TNF β did not. The mRNA expressions of IL-1β and IL-6 were markedly upregulated on postoperative day 1 and then subsided to the preoperative level. IL-1β mRNA expression remained the same even when distraction began. However, IL-6 mRNA expression was reactivated during the distraction phase. Immunohistochemical study revealed the expressions of IL-6 not only at the transitional zone of the transchondroid ossification, in young osteoblasts lining newly formed trabeculae and in hematopoietic cells in the marrow but also in primitive mesenchymal cells at the distraction gap. Conclusion: Distraction strain re-induced IL-6 expression during distraction osteogenesis, which suggests that well-controlled inflammatory reaction might contribute to active new bone formation in distraction osteogenesis.

Chronological changes in inflammatory cytokines immunoreactivities in the mouse hippocampus after systemic administration of high dosage of tetanus toxin.

Yan, Bing Chun,Park, Joon Ha,Kim, In Hye,Shin, Bich Na,Ahn, Ji Hyeon,Yoo, Ki-Yeon,Lee, Deuk-Sik,Kim, Myong Jo,Kang, Il-Jun,Won, Moo-Ho Springer-Verlag 2012 Experimental brain research Vol.223 No.2

<P>Tetanus toxin (TeT) is an exotoxin and has a capacity for neuronal binding and internalization. In the present study, we compared changes in the immunoreactivities and protein levels of interleukin (IL-) 2 as a pro-inflammatory cytokine and IL-4 as an anti-inflammatory cytokine in the hippocampus proper (HP) and dentate gyrus (DG) after systemic treatment of 10 or 100?ng/kg TeT into mice. In this study, we could not find any neuronal damage or loss in any subregions of the hippocampus after TeT treatment. In the control groups, strong IL-2 immunoreactivity was shown in the stratum pyramidal (SP) of the HP and in the granule cell layer (GCL) of the DG. At 6?h post-treatment, IL-2 immunoreactivity was hardly detected in the SP and GCL; however, strong IL-2 immunoreactivity was shown in the stratum oriens of the HP in both the groups. Thereafter, intermediate IL-2 immunoreactivity was shown in the SP and GCL. On the other hand, intermediate IL-4 immunoreactivity was detected in the SP and GCL of the control groups. At 6?h post-treatment, IL-4 immunoreactivity in the SP and GCL was apparently increased. Thereafter, IL-4 immunoreactivity was lower than that at 6?h post-treatment. In brief, IL-2 and 4 immunoreactivities were easily detected in SP and GCL in the controls and dramatically decreased and increased at 6?h post-treatment, respectively.</P>

馬山灣의 環境學的 硏究 3. 雙鞭毛藻類 群集의 動態에 대하여

劉光日,李埈佰 漢陽大學校 環境科學硏究所 1985 環境科學論文集 Vol.6 No.-

近來에 와서 馬山灣을 포함한 鎭海灣一帶는 赤潮의 多發海域으로 주목되고 있으며, 그 原因生物로써 雙鞭毛藻類의 重要性이 강조되기에 이르렀다. 본 硏究는 이 海域에서 赤潮를 誘發시키는 雙鞭毛藻類 群集의 動態를 파악하고 赤潮의 發生機構를 究明하고저 실시하였으며 1982年 1月부터 12月까지 馬山灣을 中心으로 한 4개 定點에서 每月 조사를 실시하였다. 조사기간중 出現한 雙鞭毛藻類群集은 총 43種類로써 12屬 ,43種으로 구성되어 있으며, 이들의 크기는 20∼1,000㎛의 범위에 있다. 現存量의 季節的인 變化는 表層이 365∼671,859 cells/ℓ, 그리고 低層이 158∼23,547 cells/ℓ의 범위를 나타내어 表層과 低層이 심한 대조를 보였다. 특히 계절적 출현양상은 5月에 Gymnodinium splendens 그리고 6月에 Prorcentrum micans가 優占的으로 出現하여 이들 單一種에 의한 특징적인 大發生이 관찰되었다. The study on the population dynamics of dinoflagellates has been carried out to clarify the redtide mechanism in the coastal zone. Monthly sampling was made at 4 selected stations in Masan Bay during the period from January to december, 1982. A total of 43 taxa, representing 12 genera, 43 species were identified during the study. Standing crops of dinoflagellate population varied extensively by months/stations: ranging from 158 to 671,859 cell/ℓ. The spring bloom was mainly composed of Gymnodinium splendens, while Prorocentrum micans in summer season. The community stability was closely related with higher value of diversity index in the surveyed area.

고속액체크로마토그래피법에 의한 식품중의 삭카린과 글리시리진의 동시분석

정진일,박유신,박영준,정희선 內務部 國立科學搜査硏究所 1996 國立 科學 搜査 硏究所 年報 Vol.28 No.-

졸-겔법에 의해 합성한 실리카 졸의 GC 및 GC/MASS 분석

김선일,김준섭,유지강 조선대학교 생산기술연구소 1999 生産技術硏究 Vol.21 No.2

The optimal condition for reaction of silica sol at room temperature(25±1℃) was identified when the mole ratio of TEOS : EtOH : H₂0 : HCl was 0.345 : 0.390 : 0.612 : 1.21 x 10^(-3). The equilibrium state reached when the hydrolysis for TEOS was proceeded for 40~50 minutes at the room temperature, and the volume percent of ethanol which was detected from GC column reached to 61.6%. In order to identify the path for the molecular growth of intermediate, hydroxyl group of intermediate was change into TMS by the. TMCS, so that monomer and tetrasilicate were 92% based on the amount of TEOS by the GC/MASS.

强靭鑄鐵의 熔接性에 關한 硏究

曺東震,韓俊澤,劉憲一,朴龍鎭,金錫胤,慶在浩 弘益大學校 1974 弘大論叢 Vol.6 No.-

The matrix of ductile cast iron are welded by pre-heating it at 300℃ in the room temperature. Through the mechanical, non-desbructive testing and analysis of the composition. the possibility if arc welding of ductile cast iron are studied as follows; 1. L electrode is the best among them in weldability, impact value and machinability. The next is LB electrode followed by S electrode. C electrode is last. However, the tensile strength showed in the following order: LB, S, L, C. 2. LB, S, L, C, all are available for the welding of cast iron. 3. The above experiment showed that L and LB are good in general. In addition LB is low in price, we therefore prospect that it will be widely used as the electrode for cast iron.

합병증이 동반된 Meckel씨 게실 2례 보고

정병욱,박동일,이준희,서정욱,원유홍,김웅,신현종,권영무 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

합병증이 동반된 Meckel씨 게실을 가진 환자의 치료에 대한 필요성은 과정이 문제이다. 하지만 우연히 만나는 게실의 처치는 논란 중이다. 부수적인 게실 절제술(incidental diverticulectomy)의 제안자는 증상이 있는 게실의 외과적 처치는 중요한 이환 및 사망률은 지적한다. 이를 반대하는 사람들은 전 생애를 통해 합병증의 위험성이 낮게 나타나므로 필요가 없다고한다. 게실의 예방적 제거는 개복술시 우연히 발견 될 때 시행한다. 이는 남아있는 게실이 나중에 합병증을 일으키는 것보다 술후 합병증의 위험성이 매우 적음을 알 수 있다. 저자들은 합병증이 동반된 Meckel씨 게실 2예를 경험하였기에 문헌 고찰과 더불어 보고하는 바이다. The necessity for therapy with complicated Meckel's diverticular is a matter of course.However, management of the incidentally encountered diverticulum is controversial. Proponents of incidental diverticulectomy point to the significant morbidity and mortality rates of surgical treatment of symptomatic divenicular. Other authors base their opposition to incidental diveniculectomy on the low risk of complications developing during lifetime. Prophyillctic removal of the diveniculum is indicated when it is found incidentally at laparotomy, because there are few postoperative complications and the risk exists that the remaining diverticulum may be the cause of later complication. The 2 cases of complicated Meckel's diverticulum are reported with a brief review of literature.

强力犯罪에 대한 檢察求刑과 宣告刑量間의 比較分析

柳一準(Yoo Il Joon) 한국형사법무정책연구원 1994 형사정책연구 Vol.18 No.-

Ostrinia furnacalis (Lepidoptera: Pyralidae) occurrence in a paddy-upland rotation field for maize and sorghum

Soon-Il Kim,Min Joon Kim,Yoo Hwa Kim,Sung-Tag Yoon 한국응용곤충학회 2015 한국응용곤충학회 학술대회논문집 Vol.2015 No.10

Occurrence characterization of oriental corn borer, Ostrinia furnacalis, in a paddy-upland rotation field for 8 maize and 7 sorghum varieties was surveyed. In a monitoring study using a pheromone trap carried out from 15 May to 10 September, the density of O. furncalis adults increased rapidly from about 2 weeks after corn planting and reached the highest density at mid June. After that, their density was decreased and increased a little at earlier September. In a survey carried out at harvest period using 8 corn varieties, the damage ratio was Daehakchal (94%), Mibaek 2 (92%), Ilmichal (71%), Eolrukchal 1 (64%), Chalok 4 (54%), Miheukchal (52%), Heugjeom 2 (45%). The number of invasive pore per Ilmichal stem by O. furnacalis larvae was 1.4 and those of the others was less than 1.0. In another survey carried out at harvest period using 7 sorghum varieties, their damage ratios were DS-202 (95%), Moktaksusu (76%), Sodamchal (75%), Nampungchal (67%), Anzunbaengisusu (57%), Donganme (46%), and Hwanggeumchal (34%). The damage of sorghum varieties was much higher and severer than that of corn by O. furnacalis larvae. These results may be useful for the establishment of a management strategy to control oriental corn borer in paddy-upland rotation fields for maize and sorghum.

관산화수소 섭취후 발생한 문맥 공기색전증 1 예

김현준,김석,이순일,유태석,조영일,허원만,유종길,왕준호,임형래,이승철,송종오 대한내과학회 1997 대한내과학회지 Vol.53 No.1

We present a case of a 19-year-old male with portal vein gas embolism resulting from accidental ingestion of 35% hydrogen peroxide. Hydrogen peroxide is a commonly used germicidal cleansing agent. When it is applied to tissues, catalase causes its rapid molecular decomposition with the release of oxygen bubbles. The patient recovered without sequelae. Hyperbaric oxygenation may be of benefit in patients with respiratory compromise or central nervous system symptoms from gas embolism in hydrogen peroxide ingestion.