• Restorative Dentistry and Endodontics
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• 제19권2호
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• pp.568-584
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• 1994

Bacteria have been regarded as major etiolgic factors in root canal infections. Infected root canal flora from thirteen patients who had visited to conservative department of Wonkwang dental hospital were cultured on blood agar plates. Cultued microorganisms were isolated and identified with Gram stain and biochemical tests using Vitek Systems(BioMeriux, MO, USA); Antibiotic susceptibillity was performed with disk diffusion and broth microdilution using Vitek Systems. Gram positive cocci(65 %) were predominant, which were composed of 6 Streptococcus viridans group, 5 Staph. spp., and 4 Enterococcus faecium, in the isolatd 23 strains. Gram negative rods (26 %) were the next common bacteria, which were composed of 5 non - fermentative Gram negative rods, and 1 Enterobacter cloacae. Most strains of S. viridans group and E. faecium were susceptible to antibiotics including penicillin. But strains of Staphylococcus spp. and non - fermentative Gram negative rods showed marked resistance to antibiotics except tetrancyclin and cefotaxime. Most results between disk diffusion and microdilution were all agreed, but the results of non - fermentative Gram negative rods were susceptible to cefotaxime in disk diffusion method but resistant in microdilution.

• 한국임상수의학회지
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• 제18권2호
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• pp.178-181
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• 2001

Four dead wild racoons found in Chonnam province were examined parasitologically, pathologically and bacteriologically. Using standard flotation technique with feces many number of ancylostoma eggs which were oval in shape and $60-70{\times}35-45 {\mu}m$ in size were detected. Grossly, severe anemia, multiple congestion and consolidation of lung and catarrhal exudate in small intestine were observed. One of racoons had multifocal white to yellow nodules in the liver. Histopathologically, ancylostoma larvas were found in intestinal lumen. Some of them penetrated and attached to intestinal mucosa. Lungs revealed multiple severe fibrinopurulent pneumonia in which bacterial colonies were scattered. Liver had multiple microabscesses containing peripheral bacterial colony. By Gram stain using paraffin sections of liver and lung, bacterial colony was Gram negative. Isolated bacteria from lung and liver was Gram negative rod. This bacteria was identical with Escherichia coli by biochemical tests. From these results, ancylostomiasis caused severe problems in Korean wild racoons. This is the first report about ancylostomiasis in wild racoons in Korea.

• 한국해양학회지
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• 제20권3호
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• pp.62-69
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• 1985

忠武灣에서 分離한 108個의 菌株에 대하여 고전적 분류방법과 수리적 분류방법을 비교하고, 균주간의 相關關係數를 구하여 유사성을 確認하였다. 수리적 분류에서는 고전적 분류와는 달리 Gram(+)와 Gram(-) 菌株가 전체 cluster에 分散되어있고, coccus와 rod가 분리되었으며, genus간의 分類는 수리적 방법과 고전적 방법사이에 連關性이 크게 나타났다. 下層에서 採取된 균주는 다른 層에 비해 균주간의 분류학적 유사성이 떨어지는 것으로 나타났다. 또한 灣 內部 (Group I)의 菌株와 外部 (Group II)의 菌株間의 거리는 각 Group內의 菌株間의 연관성보다 적은 것으로 나타났으며, 干潮時 海水에서 분리된 균주와 滿潮時 분리된 균주간에는 연관성이 적음이 확인 되었다.

• 한국식품과학회지
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• 제22권1호
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• pp.26-32
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• 1990

김치발효 지표로서 미생물군집의 특성을 밝히고자 하였다. 군집크기는 Gram염색법에 의한 현미경직접계수에 의하여 측정하였다. 실온$(15^{\circ}C)$에서 김치발효는 Gram양성균군집, 효모군집 그리고 Gram음성균군집이 순서적으로 천이되었다. Gram양성균군집은 김치를 발효시키는 유산균으로 구성되어 있다. 효모군집의 발달은 김치의 악취를 내는 원인이 되며, Gram음성균군집은 악취와 더불어 김치의 연화작용에 관계된다는 사실이 특정적이었다. 그리고, 외관상의 Gram음성균군은 Gram양성균군집 내의 개체군의 노화와 사멸을 평가하는데 이용될 수 있었다. 특히 저온$(5^{\circ}C)$ 김치발효에서는 효모군집과 Gram 음성균군집이 발달되지 않고 Gram양성균군집만이 발달됨을 알았다. 이 사실로부터 숙성된 김치는 Gram양성균군집에 의하여 만들어짐을 의미한다. 따라서 미생물군집의 발달과 크기는 김치발효의 지표로 이용될 수 있고, 또한 김치숙성도를 수십분 내에 예측하는데 중요한 방법이 될 수 있다.

• Parasites, Hosts and Diseases
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• 제45권1호
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• pp.65-68
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• 2007

The application of Giemsa technique to stain compressed diaphragm samples obtained from rodents experimentally infected with Trichinella spiralis is described. Diaphragm samples from rats heavily infected with 20 muscle larvae per gram of body weight(20 ML/gbw) were cut into several pieces and stained with Giemsa; on the other hand, whole diaphragms from slightly infected mice(1 ML/gbw) were also stained with Giemsa. Besides, muscle samples were also stained with Giemsa. Observation at 10 $\times$ magnification revealed that both ML and nurse cells(NC) look as bluish structures clearly contrasting with the pinkish color of the non-infected muscle fibers. NC in the diaphragms of mice could be easily observed at naked eye as blue points contrasting with the pink surrounding areas formed by the non-infected muscle fibers. Among NC observed in the diaphragms of rats infected with 20 ML/gbw, 4.4% was multiple infection. These findings were confirmed in sectioned and hematoxylin-eosin stained specimens. This data could be usefulness for a rapid diagnosis of trichinellosis in post-mortem mammals without magnification procedures.

• 대한족부족관절학회지
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• 제4권1호
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• pp.30-34
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• 2000

The Actinomyces organism is inherent in human as normal flora found in the mouth. Outside of the mouth, this organism can cause actinomycosis. Involvement of the extremity is very rare and atypical. The authors have experienced a case of actinomycosis of the foot and report with the literature review. Histopathologic finding shows multiple sulfur granules. In histochemical stains, periodic acid-Schiff, Gomori methionine silver, and gram stain were positive, and acid fast bacilli stain was negative. The patient was treated with surgical excision and antibiotic administration with Ampicillin for 6 months.

• Applied Biological Chemistry
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• 제17권2호
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• pp.117-124
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• 1974

23종(種)의 대표적(代表約)인 세균(細菌)에 대(對)하여 glucosamine 함량(含量)을 측정(測定)하여 당지질(糖脂質)의 분포(分布)를 조사(調査)하고 당지질(糖脂質)의 함량(含量)과 Gram염색(染色)과의 상관관계(相關關係)를 규명(究明)한바 다음과 같은 결과(結果)를 얻었다. 1. Gram음성균(陰性菌) 및 varieable균(菌)은 그 균체(菌體) 당지질중(糖脂質中) glucosamine함량(含量)이 최소(最少) Proteus vulgaris의 $0.04{\mu}g$에서 부터 최고(最高) Aerobacter aerogenes 의 $2.48{\mu}g$의 범위(範圍)로 분포(分布)되여 있었다. Gram positive균(菌) 및 Bacillus속중(屬中)의 Gram양성균(陽性菌)은 전부(全部) $0.02{\mu}g$ 이하(以下)의 함량(含量)을 갖고 있었다. Gram양성(湯性)인 Corynebacterium sepedonicum 및 Staphylococcus aureaus는 특(特)히 glucosamine함량(含量)이 최소(最少)였다. 이들보다 Gram음성균(陰性菌)은 양성균(湯性菌)과 명확(明確)히 구별(區別)할 수 있을만큼 glucosamine함량(含量)이 많았다. 2. Gram염색(染色)은 당지질(糖脂質) 추출전(抽出前)보다 추출후(抽出後)가 염색(染色)이 더 잘되는 경향(傾向)이였다. 3. Aerobacter aerogenes, Bacillus circulans, Pseudomonas fluorescens 및 Salmonella typhirurium의 4균주(菌株)에서 얻은 당지질(糖脂質)의 적외선(赤外線) spectra는 대체(大體)로 같았으며 다 OH-group C-O, C-O-C, $CH_2+CH_3$, amide 결합(結合), 지방산(脂肪酸) ester 결합(結合), ester carbonyl 결합(結合)의 존재(存在)를 확인(確認)하였다.

• 한국치위생학회지
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• 제7권2호
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• pp.189-196
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• 2007

A study of the J health college dept of dental hygiene practice vistant a total of 35 supragingival calculus and subgingival calculus picking SEM observation and bacteria identification of the result are followings. 1. As observed by dental calculus SEM, the surface roughness appeared as peaks, valleys, and pits. 2. About bacteteria morphology blood agar plate small green zone partial hemolysis colony streptococcus observation 3. Isolated colony gram stain gram are positive display 4. Supragingival calculus at Lactococcus lactis spp. Leuconostoc spp. Streptococcus mitis, Aerococcus viridans bacteria 1, 3, 3, 16 species detection 5. Subgingival calculus at Aerococcus viridans, Leuconostoc spp. bacteria 5, 1 species detection.

• 미생물학회지
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• 제12권1호
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• pp.37-51
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• 1974

Three strains which accumulated large quantities of L-hlutamic acid as the chief product of metabolism in the presence of glucose and inorhanic ammonium salt under the aerobic condition sere newly isolated. These strains have the general characters as follows: Gram-positive, short fod-shaped, non-sporulating, non-motile, and facultative anaerobe. A change of cell shates was not almost observed in their life cycles and neither a phenomenon of cell-elongation nor a pleomorphism was recognized in any cases. Together with rigid stability in Gram-stain, these characters as above indicated evidences that newly isolates would belong to genus Brevibacterium clearly differentiated from genus Corynebacterium. At the same time the newly isolates, in addition to nutritional requirement of biotin and thiamine, showed the distinctive character of requirement of special amino acid such as histidine or cysteine for their considerable growth. These physiological characters including nitrates reduction, reaction on milk, and slow formation of acid from sugar also were useful in confirming that these bacteria would be Brevibacterium ammoniagenes.

• Archives of Pharmacal Research
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• 제17권6호
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• pp.438-442
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• 1994

Antimicrobial activity of GL (the aqueous extract from the carpophores of Ganoderma lucidum ($F_RK_{KARST}$) was tested in vitro aginst Gram positive and Gram negative bacteria by serial broth dilution method, and the antimicrobial activity was expressed by minimal inhibitory concentration (MIC). Among fifteeen species of bacteria tested, the natimicrobial activity of GL was of antimicrobial combinations of GL with four kinds of antibiotics (ampicilin, cefazolin, oxytet-racycline and chloramphenicol), the fractional inhibitory concentraction index (FICI) was determined by checkerboard assy for each stain. The antimicrobial combinations of GL with four antibiotics resulted in additive effect in most instances, synergism in two instances, and antagonism in two instances. Synergism was obversed when GL was combined with cefazolin against Bacillus subtilis and Klebsiella oxytoca.