The effect of combined Rehmannia glutinosa Libosch and Eleutherococcus senticosus Max(OPB) extracts on bone mineral density in ovariectomized rats.

Kim,Jung-Keun 대한구강생물학회 2007 International Journal of Oral Biology Vol.32 No.4

This study was conducted to investigate the preventingeffects of OPB (Rehmannia glutinosa Libosch and Eleuth-erococcus senticosus Max extracts) and combined OPB/Calcium therapy on bone loss in ovariectomized rats. SixtySprague Dawley rats of 12-week-old were divided into eightgroups: OVX (ovariectomized), OPBL (OPB 50mg/kg),OPBM (OPB100mg/kg), OPBH (OPB 200mg/kg), OPBL/CAL(OPBL+CAL), OPBM/CAL (OPBM+CAL), OPBH/CAL (OPBH+CAL) and CAL (Calcium citrate 88.33mg/kg+1α, 25-dihydroxy-vitamin D3 33.33IU/kg). Bone mineraldensity (BMD), bone mineral content (BMC), bone strengthindices and cortical thickness were analyzed by peripheralquantitative computerized tomography (pQCT). pQCTscanning showed that OVX induced a significant decreasein trabecular bone mineral density and bone mineralcontent in the proximal tibia (-36.4±2.4%, -21.8±12.7%).These decreases were significantly prevented by theadministration of OPBM and OPBM/CAL. Cortical BMDand BMC of tibia were slightly enhanced by OPB and OPB/CAL. However there was no significant difference betweenOVX and OPB, OPB/CAL treated group. Bone strengthindices and cortical thickness were not significantly different.Our results suggest that OPB and combined OPB/Calciumtherapy are effective in preventing the development of boneloss induced by ovariectomy in rats.

Repetitive Compensation Control for AGC System By Using Pre-Pass Rolling Data

Hwan?Seong KIM,Jin?Seon PARK,Sang?Dol LEE,Keum?Jae LEE,Sung?Kwan PARK 제어로봇시스템학회 2001 제어로봇시스템학회 국제학술대회 논문집 Vol.2001 No.10

흰쥐와 햄스터의 생체리듬과 관계된 신경핵에서 Fos 면역양성물질 발현에 관한 연구

박환태,박인식,백선용,김봉선,김진정,김재봉 대한해부학회 1994 Anatomy & Cell Biology Vol.27 No.1

흰쥐 시각교차위핵에서 Galanin 면역반응 축삭종말의 분포와 신경연접구조

박환태,백선용,김봉선,김진정,김재봉 대한해부학회 1992 Anatomy & Cell Biology Vol.25 No.4

과수 조류피해 방지에 관한 연구

김영호,윤철구,임상철,손인창,박재혁,김동환,김선규 충북대학교 한국과학재단 지정 첨단원예기술개발 연구센터 2002 연구보고서 Vol.6 No.-

새로운 저비용 고효율 조류 피해 방지법의 개발을 위한 기초자료를 얻기 위하여, 현재 사과, 배 과수원에서 사용되고 있는 조류피해 방지 방법들의 정확한 효과를 서로 비교 검토하고, 아울러 충북지역 과수 재배 농가들을 대상으로 유해조류에 의한 피해 실태와 경제성 있는 조류 피해방지 방법에 대한 설문조사를 병행 실시한 결과는 다음과 같다. 1. 조류피해는 방조망 설치에 의해서만 완전히 방지할 수 있었으며, 조류 피해율별 손익계산 결과를 참고하여 이익이 있을 때는 표준방조망을 설치하고, 그렇지 않을 경우에는 설치비가 저렴하며 농가에서 간단히 시공할 수 있는 간이방조망 설치가 더 경제적인 것으로 판단되었다. 도내 과수 농가의 조류피해는 지역 간에 큰 차이가 있었으며, 음향적 방제인 버드가드와 보호봉지인 망사봉지에 의한 방제가 가장 효과적이었다. 그러나 버드가드는 높은 설치비용이 문제되므로, 퇴치 효과가 비슷하거나 더 우수하면서 저렴한 한국식 음향 기구를 개발할 필요가 있는 것으로 판단되었다. 보호봉지인 UV 봉지와 플라스틱 보호캡 및 망사봉지 처리는 품종에 관계없이 피해를 현저하게 감소시켰으나, 과실의 착색 등 품질에 미치는 영향에 대해서 추가적인 연구와 검토가 필요한 것으로 생각되었다. To obtain basic data for low cost-high efficiency control methods for bird damage, the available control methods currently in use mostly in Chungbuk Province were tested on site, and the control efficiency was compared. Also, a comprehensive survey of actual bird damage and the control methods on model apple and pear growers in Chungbuk Province was conducted. The results are summarized as follows. The perfect control for bird damage was possible only through bird net, it was recommended that profit-and loss account must be considered before installing bird net, and when the 'standard bird net' does not come up to break-even point, more economic and convenient 'simplified bird net' should be a alternative. Actual extent of bird damage varied according to the locality, and imported acoustic apparatus BirdGard^R, development of our own system with superior or same quality and reasonable price is necessary. Fruit bags such as UV bags, plastic protective caps, and net bags were highly effective for bird damage control, irrespective of fruit species and cultivar, but further study to resolve some problems such as poor coloration caused by bagging is necessary.

피질골 절제술을 응용한 구치의 원심직립 이동

김상철,강경화,오승환,이인성,김선영 대한치과교정학회 2004 대한치과교정학회지 Vol.34 No.5

빠르며 정확하고 안전한 치아이동을 목표로 삼고 있는 교정치료에서 새로운 패러다임이라고 여겨지는 피질골 절제술과 견인 골형성술을 응용한 구치의 원심직립이동에 대하여 알아보았다. 일반적인 방법으로는 어렵거나 치료 기간이 길어질 것으로 판단되는 구치의 원심직립 이동을 피질골 절제술과 견인 골형성술을 응용하여 도모하였다. 각각의 원심직립 증례를 통해 피질골 절제술과 견인 골형성술의 적용 술식, 견인장치 등을 논하고 그 효과를 파악하였다. 빠른 치아이동과 이에 따른 교정치료 기간의 단축이 가능하고 통상의 교정치료로는 이동에 한계가 있었던 치아이동을 구치의 정출이나 고정원의 상실 없이 도모할 수 있었다. Tooth movement facilitated by corticotomy and distraction osteogenesis, a new paradigm in orthodontics, was discussed. Molar uprighting was thought to be either difficult or nearly impossible. In this study, a section of cortical bone. which may act as resistance to tooth movement in alveolar bone, was removed. Active bone deposition was also made possible in the tension side. This forms the main concept of tooth movement facilitated by corticotomy and distraction osteogenesis. Molars in two cases were uprighted at such a speedy rate as we could not Imagine in conventional tooth movement, which lead to reduction of the total treatment period. And molar uprighting was possible without side effects, for example, supraversion of the tooth or anterior anchorage loss. These were the superior aspects to conventional orthodontics.

가토에서 관절원판을 전방변위시킨 후 두개하악관절의 조직병리학적 변화

김문수,여환호,김수관,강태호,박정열,장현석 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.5

To investigate the histopathologic changes of the rabbit craniomandibular joint (CMJ), anterior disc displacement (ADD) was surgically induced. Of 15 rabbits, 9 were classified as experimental group, 3 as control of group, and 3 as sham-operation group, respectively The experimental group (9 rabbit) was subdivided into 6 weeks, 12 weeks, and 20 weeks group, respectively 3 rabbits. In experimental group, the disc was displaced anteriorly at the right side(operation side) and left CMJ was not operated(non-operation side). Both CMJs were harvested at 6, 12, and 20 weeks following surgery in experimental group. The CMJ was harvested at 6 weeks following surgery in sham-operation group. The specimens were examined under light microscope after hematoxylineosin and verhoeff staining. The obtained results were as follows: 1.In midsagittal view of control and sham-operation group, there were no degenerative and hyperplastic changes in the CMJ including articular disc, mandibular condyle, and temporal fossa. 2.Disc was shortened anterior-posteriorly and deformed of biconcave shape in all experimental group. In 20 week experimental group, intermediate zone of disc width was almost same as the width of posterior band of disc. 3.Soft tissue hyperplasia at the posterior attachment area of the disc and condylar hyperplasia were seen in the all experimental groups, but the degree of the hyperplasia was greater at 12, 20 weeks than at 6 weeks. 4.The number of elastic fiber in the disc proper was decreased and the direction and morphology was chanced in all experimental groups compared with those of control of groups. 5.Fatty degeneration was shown in non-operation side of 20 weeks experimental group. These results suggest that induced ADD in craniomandibular joint of rabbits could lead to a reparative and degenerative changes of the affected joint similar to those described for osteoarthrosis and osteoarthritis in human.

기저핵부위에 국한된 외상성 뇌실질 출혈에 대한 임상적 고찰

김선환,송시헌,염진영,김성호,김윤 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.6

In this report, the authors analyzed retrospectively 20 cases of pure traumatic basal ganglia hemorrhage(TBGH) which were diagnosed and treated in our hospital between January 1990 and Jun 1995. The TBGH incidence constitutes 1.4% of all head trauma. It occures were commonly among the younger male patient groups. The main causes of trauma was motor vehicle accidents. The overall mortality rate was 15%. Low initial GCS score, fixed pupillary reflex, pathologic reflex, poor motor response and large hematoma size were all poor prognostic factors, resulting a high mortality or passimistic outcome.

산업단지 활성화 방안에 관한 연구 : 경남 김해시를 중심으로 Based on Gimhae City, Gyeongnam

김환선,이성호 釜山大學校 都市問題硏究所 2002 都市硏究報 Vol.13 No.-

Purpose of this research presents way for industrial complex activation and do contribution low class informer a little in bloc economy development drawing problem of industrial complex laying stress on Gyongsang-namdo Gimhae area. Problem of Gimhae area industrial complex can lift greatly 4 such as manpower problems, infrastructure unpreparedness, financial difficulty, related industry accumulation unpreparedness. Presented industrial complex activation way to solve these problems as follows. First, smooth human strength supply and melancholy human strength security are essential for manpower problems cough. Second, need cleaning material support for financial difficulty cough, financial favors, smooth capital loaning. Third, again, need expansion of infrastructure of communication etc.. and expansion of life convenient facilities. Fourth, administrative support such as simplification of formality, collectivization of factory, representative industry upbringing, synthesis support center operation is required.

팔라디움 촉매하에서 산염화물과 유기주석의 커플링 반응

김두화,박정환,한도수,허선아,김성현,조성동 조선대학교 기초과학연구소 1992 自然科學硏究 Vol.15 No.1

The reaction of Asymmetrical organotins with acid chlorides in the presence of Benzylbis (triphenylphosphine) palladium(Ⅱ) chloride gave good yields of ketones in chloroform.