鬱血性心不全症에 對한 臨床的 觀察

徐明洙,金吉洙,金佑泰,張錫源,金承源,宋昌燮 대한적십자사 1983 적십자병원지 Vol.10 No.2

수종 근관확대 기구의 만곡된 치근관 성형능력

김명수,손호현 大韓齒科保存學會 1992 Restorative Dentistry & Endodontics Vol.17 No.1

인산용액의 농도 및 적용시간 차이에 따른 상아질 표면의 형태적 변화

김명수,온영석,이광원,손호현 大韓齒科保存學會 1998 Restorative Dentistry & Endodontics Vol.23 No.1

The depth and patterns of demineralization according to the difference in concentration and application time of phosphoric acid were observed through the transmission electron microscope, and shear bond strengths to the acid-conditioned dentin were then measured and compared with the TEM results. To investigate the influence of polymer addition into the phosphoric acid and the effect of difference in concentration and application time of the acid, the specimens were randomly divided into 9 groups. Among the specimens, the exposed dentin surfaces were acid-conditioned with 10% polymer-thickened phosphoric acid(All Bond 2, Bisco, U.S.A.) and aqueous 10%, 20%, 30%, 40% phosphoric acid for 20 seconds, The rest of the specimens were acid-conditioned with 10% phosphoric acid for 15s, 30s, 60s, 120s respectively. The specimens were immersed in 4% glutaraldehyde in 0.1M sodium cacodylate buffer and postfixed with 1% osmium tetroxide without decalcification and then observed under a JEOL Transmission Electron Microscope(JEM 1200 EXⅡ,Japan). After the specimens were acid-conditioned as the above, primer and adhesive resin were applied to blot-dried dentin and shear bond strengths were then measured and analysed. The results were as follows : 1. The intertubular demineralization depth of 4.0-5.0㎛ in 10% polymer-thickened phosphoric acid gels was similar or slightly deeper than that of 4.0-4.5㎛ in aqueous 10% phosphoric acid solution. 2. The intertubular demineralization depth of aqueous 20%, 30% and 40% phosphoric acid solution was 6.5-7.0㎛, 6.5-7.5㎛ and 9.0-15.0㎛ respectively. It showed that the depth of dentin demineralization is partly related to the concentration of phosphoric acid solution. 3. The intertubular demineralization depth of aqueous 10% phosphoric acid solution in application time for 15s, 30s, 60s and 120s was 2.5-3.0㎛, 4.0-6.0㎛, 6.5-7.0㎛ and 8.5-14.0㎛ respectively. It showed that the depth of dentin demineralization is directly related tothe application time of phosphoric acid solution. 4. The partially demineralized dentin layer between demineralized collagen layer and unaffected dentin was showed to a width of 0.5-1.0㎛ in lower concentration groups treated with aqueous 10% phosphoric acid for 20s, 60s, 120s and 20% phosphoric acid for 20s. 5. The demineralization effect at the border of intertubular-peritubular junction was less evident than that in the peritubular and intertubular dentin. The collagen fibers in the intertubular dentin had a random orientation, whereas those that lined the tubules were circumferentially aligned. The cross-linkage of dentinal collagen in demineralized collagen layer was clearly seen. 6. A statistically significant difference of bond strengths according to the difference in phosphoric acid concentration did not exist among the groups treated with 10%, 20%, 30% and 40% acid solution (P>0.05). However, bond strengths to the treated dentin with 10% phosphoric acid solution for 30s were significantly higher than that for 120s (P<0.05).

우측 수신증을 동반한 골반내 방선균증 1예

정명아,서유승,양진수,박준섭,윤진훈,이중건,이준승,이영규,김동희,조성범,주종은 대한신장학회 2002 Kidney Research and Clinical Practice Vol.21 No.2

Pelvic actinomycosis is a chronic granulomatous suppurative disease caused by an anaerobic grampositive organism Actinomyces israelii. It is com-monly associated with an intrauterine device(IUD) and can mimick pelvic or intra-abdominal malignant neoplasm. Ureteral obstruction leading to hydronephrosis is a rare complication of tubo-ovarian abscess. We experienced a case of hydronephrosis as a complication of pelvic actinomycotic abscess. The patient was a 46-year-old women presenting with fever and right flank pain. Leukocytosis and pyuria were present and a hydronephrosis was diagnosed by intravenous pyelography. Ultrasonography and a computerised tomography revealed a mass in right adnexum compressing the right ureter. Removal of retroperitoneal abscess and salphingo-oophorectomy were done and the diagnosis of actinomycosis was made by pathologic finding of resected mass. Postoperatively, the patient was treated with second-generation cephalosporin successfully. (Korean J Nephrol 2002;21(2):337-340)

유산균 투여가 건강한 성인의 분변미생물 및 부패산물 생성에 미치는 영향

신명수,김용재,배형석,백영진 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.2

유산균의 장내균총과 부패산물 생성에 미치는 영향을 알아보기 위하여, 건강한 성인 남녀 6명의 지원자에게 Lactobacillus acidophilus 와Bifidobacterium longum으로 제조한 유산균분말(각각 1.5×10 exp (9) cells)을 하루에 2회씩 2주동안 섭취하도록 하였다. 그리고 지원자 분변으로부터 균총수 변화와 부패산물인 암모니아, indole, skatole, p-cresole량을 측정하였다. 유산균의 투여 기간중에 분변내 bifidobacteria의 수가 8.78±0.39(log cfu/g feces±S.D)에서 9.27±0.29로 증가하였고(p<0.05) 투여 중지후에는 약간 감소하였으며, lactobacilli의 수는 6.15±0.80에서 6.76±0.48로 증가하였다(p<0.05). Enterococcus 균수는 투여 기간중에 6.66±0.80에서 7.72±0.40으로 증가하였다가 투여 중지후에는 감소하는 경향을 보였다. 그리고 혐기성균인 Bacteroides는 투여중에 8.45±0.34에서 9.15±0.21으로 증가하였으나(p<0.01), 유해균주로 알려진 Closridium(lecithinase negative)과 Staphylococcus 균수는 현저히 감소하였다. 그러나, 유산균 투여 실험기간인 6주 동안 분변내 암모니아, indole, skatole, p-cresole의 유의적인 농도변화는 없었다. To investigate the effects of lactic acid bacteria administration on fecal microflora and putrefactive metabolites in human being, Lactobacillus acidophilus and Bifidobacterium longum powder (1.5×10 exp (9) cells, respectively) was administrated to six healthy volunteers (average 28 years old) twice a day for 2 weeks. During the administration of lactic acid bacteria, the numbers of bifidobacteria, lactobacilli, and enterococci in feces were increased significantly, whereas those of Staphylococcus and lecithinase-negative Clostridium were decreased considerably. In addition, a number of anaerobic Bacteroides were increased. However, the contents of fecal ammonia and putrefactive metabolites (indole, skatole, p-cresole) were not changed during the administration.

건강보험에서 5인 미만 사업장의 직장보험 편입 효과 평가와 정책 방향

송명섭,김창보,고수경,임정수,박지연 한국사회보장학회 2002 사회보장연구 Vol.18 No.2

본 논문은 건강보험공단이 2001년 「월 이후 추진하고 있는 5인 미만 사려장의 직장보험 편입을 평가하고 향후 정책방향을 제시하는데 목적을 두고 있다. 5인 미만 사업장의 직장보험 편입은 보험 가입자의 보험료 부과의 형평성을 제고하고, 영세사업장 노동자들의 보험료 부담을 경감시키며 건강보험재정 안정 효과를 위한 것이다. 2001년 7월 이후 12월 31일까지 직장보험으로 신규편입한 대상자는 모두 약 64만명이었으나 편입이전지역보험 대상자는 약 53만명, 직장보험 대상자는 약 10만명이었다. 또한 동일 기간동안 직장보험으로 편입된 사업장은 모두 88,751개였다. 편입 전후 개인별 보험료 수준 변화를 살펴보면 보험료 부과대상 중 77.6%는 본인이 부담해야 할 보험료가 감소하였다. 대신 사업주의 보험료 부담은 상대적으로 늘어났다. 한편 2001년 7월 이후 12월까지 직장보험 편입으로 건강보험의 재정은 약 19,530백만원의 재정절감효과가 있었다. 직장보험은 7,331백만원의 보험료 수입 증가가 발생하였으며, 지역보험은 12,199백만원의 재정절감 효과가 있었다. 향후 5인 미만 사업장의 직장보험 편입이 원만히 추진되기 위해서는 피부양자 인정기준의 개선과 영세사업장 사업주의 보험료 부담을 경감시켜주기 위한 방안을 강구해야 하며, 사회적으로는 비정규직 노동자에 대한 사회보장 적용 확대를 위한 노력이 동시에 추구되어야 할 것이다. This study was conducted for the purpose of evaluating coverage of small companies with less than 5 persons by Corporate Insurance since July 2001 and of suggesting policy implication. This coverage expansion by Corporate Insurance was intended for improving equity level of contribution imposition, alleviating financial burden of employees and achieving financial stability of health insurance. While, from July 2001 to December, the number of newly covered beneficiaries was about 642 thousand persons, the number of Regional beneficiaries before the new coverage expansion by Corporate Insurance was 533 thousand persons. And the number of Corporate Insurance beneficiaries before the coverage expansion was 101 thousand persons. For the same period, the number of companies by the new coverage expansion of Corporate Insurance was 88,751. Before and after the expansion, taking into account changes of individual contribution levels, payment share levels of contribution were reduced to the 77.6% of the beneficiaries newly covered by Corporate Insurance. Instead, payment share level of contribution of employers was increased more than before. And 19,530 million won was increased in National Health Insurance Expenditure. 7,331million won was increased in Corporate Insurance revenue. Expenditure reduction effect of 12,199 million won was able to be obtained in Regional Insurance. In order to implement successfully the coverage expansion by Corporate Insurance in times ahead, employers' contribution share should be reduced, when considering low profitability levels of small companies.

자기유변유체를 이용한 Fused silica glass의 미세연마공정특성에 관한 연구

이정원,김동우,신영재,장호수,조명우 한국공작기계학회 2007 한국공작기계학회 추계학술대회논문집 Vol.2007 No.-

A new, commercially available polishing process called magnetorheological fluid polishing is used to fabrication optical glass and bio-chip. This polishing process guarantees high polishing quality by controlling the fluid density electrically. The applied material in experiments is fused silica glass. Fused silica glass is widely used in the optical and biochip field because of high degree of purity. For MR polishing experiments, MR fluid was composed with DI-water, carbonyl iron and nano slurry ceria. The wheel speed and electric current were chosen as the variables for analyzing the characteristics of MR polishing process. In results, the surface roughness according to the variation of wheel speed and electric current was analyzed.

Selection and Characterization of Bacteriocin-Producing Lactobacillus sp. AP 116 from the Intestine of Pig for Potential Probiotics

Myeong Su Shin,Hyun Jong Choi,Kyeong Hyeon Jeong,Jong Cheol Lim,Kyeong Su Kim,Wan Kyu Lee 한국축산식품학회 2012 한국축산식품학회지 Vol.32 No.1

The purpose of this study was to isolate bacteriocin-producing bacteria with antagonistic activities against pathogens from the intestines of pigs for probiotic use. Lactobacillus sp. AP 116 possessing antimicrobial property was selected from a total of 500 isolates. The AP 116 strain showed a relatively broad spectrum of inhibitory activity against Listeria monocytogenes, Clostridium perfringens, Pediococcus dextrinicus, and Enterococcus strains using the spot-on-lawn method. Bacteriocin activity remained unchanged after 15 min of heat treatment at 121oC and exposure to organic solvents; however, it diminished after treatment with proteolytic enzymes. Maximum production of bacteriocin occurred at 34oC when a pH of 6.0 was maintained throughout the culture during fermentation. According to a tricine SDS-PAGE analysis, the molecular weight of the bacteriocin was approximately 5 kDa. The isolate tolerated bile salts and low pH, and also induced nitric oxide (NO) in mouse peritoneal macrophages. Bacteriocin and bacteriocin-producing bacteria, such as Lactobacillus sp. AP 116, could be potential candidates for use as probiotics as an alternative to antibiotics in the pig industry.

Emodin stimulates the osteoblast differentiation via activating bone morphogenetic protein-2 gene expression at low concentration

Myeong Sook Cheon,Su-Ui Lee,Ho Kyoung Kim,Young Sup Kim,Yong Ki Min,Seong Hwan Kim 한국한의학연구원 2007 한국한의학연구원논문집 Vol.13 No.1

Emodin is one of the main active components of a traditional Korean medicine isolated from the root and rhizomes of Rheum palmatum L. In this study, of 222 natural compounds to evaluate the anabolic activities, emodin activated bone morphogenetic protein (BMP)-2 promoter in the differentiation process of mouse osteoblastic MC3T3-E1 cells. Emodin was shown to significantly stimulate the activity and expression of alkaline phosphatase, an earlyphase marker of osteoblastic differentiation, on the differentiation day 7, and induce the osteopontin mRNA expression from the differentiation day 14. In addition, low concentration (up to 5 M) of emodin dramatically promoted the induction of mineralization in MC3T3-E1 subclone 4 cells. The stimulatory effect of emodin on the osteoblast differentiation/mineralization could be associated with its potential to stimulate the BMP-2 gene expression. Although further studies are needed to determine the precise mechanism, this study suggests that the use of herbal medicine containing natural compounds with anabolic activity such as emodin could have a beneficial effect on bone health.

Integrated Approaches for Assessing the Vulnerability and the Potential Distribution of Major Medicinal Plants to Future Climate Change Scenarios

Myeong Ja Kwak,Keum-Ah Lee,Jong Kyu Lee,Han Dong Kim,Yea Ji Lim,Sang Hee Park,Su Gyeong Jeong,Koeun Lee,Taewoo Yong,Su Young Woo,Yong-il Kim 한국원예학회 2020 한국원예학회 학술발표요지 Vol.2020 No.11