• Title/Summary/Keyword: Streptococcus pyogenes

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Necrotizing fasciitis and streptococcal toxic shock syndrome secondary to varicella in a healthy child

  • Kwak, Byung Ok;Lee, Min Jung;Park, Hye Won;Song, Min Kyung;Chung, Sochung;Kim, Kyo Sun
    • Clinical and Experimental Pediatrics
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    • v.57 no.12
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    • pp.538-541
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    • 2014
  • Varicella is usually considered to be a benign disease in healthy children; however, serious complications can occur such as necrotizing fasciitis and toxic shock syndrome. We describe a 38-month-old girl with necrotizing fasciitis and streptococcal toxic shock syndrome following varicella. She was previously healthy and vaccinated against varicella at 12 months of age. She had been diagnosed with varicella three days prior to presenting at our facility; she developed fever, vomiting, and painful swelling on her left flank. Her skin lesions worsened, she became lethargic, and had episodes of hypotension and coagulopathy. Necrotizing fasciitis on the left abdominal wall, buttocks, and left thigh was diagnosed by magnetic resonance imaging, and group A Streptococcus was isolated from a tissue culture. She was diagnosed as necrotizing fasciitis and streptococcal toxic shock syndrome, and successfully treated with repeated surgical debridement and fasciotomy, in addition to intensive antibiotics. Our experience suggests that necrotizing fasciitis in patients with varicella should be considered to be a rare complication even with widespread vaccine use. Early diagnosis and intensive treatment are required to prevent a fatal outcome.

Isolation and Purification of Several Substances Produced by Fusarium graminearum and Their Antimicrobial Activities (Fusarium graminearum이 생산하는 몇가지 물질의 분리정제 및 항균 활성)

  • 김병섭;김건우;이종규;이인원;조광연
    • Korean Journal Plant Pathology
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    • v.11 no.2
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    • pp.158-164
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    • 1995
  • 토마토의 엽권에서 분리한 Fusariym graminearum이 분비하는 물질은 벼 도열병균(Pyricularia oryzae)의 여러 종의 식물병원 진균에 대한 항균활성을 나타내었으며, 이러한 활성물질을 PDA에서 본 균을 배양 한 후 chloroform으로 추출하여 분리정제 하였다. HPLC에 의하여 5종류의 활성 물질을 분획하였으며, 그중 1번(F402) 화합물을 벼 도열병균(P. oryzae)을 포함한 22개 식물 병원 진균에 대하여 살균 활성범위를 조사한 결과, 이 화합물은 50$\mu\textrm{g}$/ml 농도에서 Pythium ultimum, Rhizoctonia solani, Sclerotinia sclerotiorum은 전혀 억제하지 못하였으며, Phytophthora spp., Cladosporium fulvum, Fusarium spp., Corynespora cassicola에는 어느 정도의 활성이 있었지만 낮게 나타났고, P. oryzae, Cochliobolus miyabeanus, Alternaria solani는 100% 억제하여 활성이 높게 나타났다. 또한 장내 세균에 대한 활성을 MIC로 비교할 때 Streptococcus pyogenes, Streptococcus faecium에 대하여는 각각 12.5, 25 $\mu\textrm{g}$/ml였고 Staphylococcus aureus는 25-50$\mu\textrm{g}$/ml으로 나타났으며, Pseudomonas aeruginosa, Salmonella typhimurium, Klebsiella aerogenes, Enterobacter cloacae에서는 100$\mu\textrm{g}$/ml 이상으로 활성이 나타나지 않았다. F402를 200$\mu\textrm{g}$/ml의 농도로 직접 살포한 식물체에서의 방제효과는 벼도열병, 벼 깨씨무늬병, 보리 흰 가루병에 대하여는 80%이상이었으나, 벼 잎집무늬마름병, 오이 잿빛곰팡이병, 토마토 역병, 밀 녹병에서는 낮았다.

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A streptococcal Disease of Cultured Flounder, Paralichthys olivaceus (양식(養殖) 넙치의 연쇄구균증(連鎖球菌症))

  • Lee, Chang-Hoon;Ha, Dong-Soo
    • Journal of fish pathology
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    • v.4 no.2
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    • pp.71-77
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    • 1991
  • From August to October of 1991, a bacterial disease occurred in cultured flounder, of 0 age Paralichthys olivaceus, in Cheju-do. Typical symptoms of the diseased fish were the hemorrage of the opercle, discoloration of the body, exophthalmus and hemorrhage of the eyes. The causative organism isolated from diseased fish was identified as a $\beta$-hemolytic Streptococcus. This bacterium was not identical with any known Streptococcus species listed in Bergey's Manual of Determinative Bacteriology 8th edition. However there was a close similarity between this species and Streptococcus sp. isolated from flounder and reported by Tashio (1983). The isolated bacteria streptococcus sp. showed very high sensitivity to the SM and EM, however, it resisted to the high concentration of Penicillin. In the pathagenicity analysis, about $1.1{\times}10^9$, $1.1{\times}10^7$, $1.1{\times}10^5$, $1.1{\times}10^3$, $1.1{\times}10^1cells$/100g B.W of isolated bacteria were injected percutaneouly. The results showed that this inoculation size $1.1{\times}10^3cells$/100g B.W was the threshold for the induction of mortality in pathogenicity analysis.

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Effects of In Vrtro Synergism of Eunkyo-san and Ciprofloxacin against 9 Strains of Aerobic Gram(+) Bacteria (은교산과 Ciprofloxacin 병용이 호기성 Gram(+) 세균주에 대한 시험관내 항균력에 미치는 영향)

  • Sin Chang-Ho;Song Kwang-Kyu;Park Mee-Yeon;Choi Hae-Yun;Kim Jong-Dae
    • The Journal of Korean Medicine
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    • v.26 no.1 s.61
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    • pp.195-205
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    • 2005
  • Objective & Methods: To evaluate the in vitro synergic effect of Eunkyo-san, a traditional poly-herbal formula used in the treatment of respiratory diseases in oriental medicine with quinolone antibiotics, represented by ciprofloxacin (CPFX), which was used in the minimal concentration (MIC), $MIC_{50}$ and $MIC_{90}$. of single use of quinolones in concomitant treatment with Eunkyo-san against 9 strain$ of gram positive bacteria. Results: In. the case of aerobic gram positive bacteria, the MIC, $MIC_{50}$ and $MIC_{90}$ against Staphylococcus aureus, Staphylococcus aureus smith, Staphylococcus epidermidis, Streptococcus pyogenes, Streptococcus pneumoniae Type I, Type II and Type III were significantly decreased in concomitant treated groups with Eunkyo-san compared to those of single treated groups of CPFX, respectively. However, no significant changes were demonstrated against Bacillus subtilis and Enterococcus faecalis. Conclusion: The in vitro antibacterial activity of CPFX were increased against some strains of gram positive strains, especially, pneumococcus such as Staphylococcus and Streptococcus, by concomitant use of Eunkyo-san.

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Postinfectious Glomerulonephritis Associated with Pneumococcus and Influenza A Virus Infection in a Child: a Case Report and Literature Review

  • Huh, Homin;Lee, Joon Kee;Yun, Ki Wook;Kang, Hee Gyung;Cheong, Hae Il
    • Pediatric Infection and Vaccine
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    • v.26 no.2
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    • pp.118-123
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    • 2019
  • Postinfectious glomerulonephritis (PIGN) is most commonly caused by Streptococcus pyogenes in children, but PIGN associated with other pathogens has been described in the literature. A previously healthy 6-year-old boy was admitted with complaints of cough, fever, and right chest pain. The patient was diagnosed with pneumococcal bacteremia and influenza A virus infection and treated with antibiotics and antiviral agent. During hospitalization, generalized edema, hematuria, proteinuria, and increased blood pressure were observed; therefore, we started administering diuretics. The boy was discharged with gross hematuria, and even microscopic hematuria disappeared 14 weeks after discharge. We report a case of PIGN associated with bacteremic pneumococcal pneumonia and influenza A virus infection in children. A urine test and blood pressure measurement should be considered for the early detection of PIGN in children with pneumococcal or influenza A virus infection when they present with nephritic symptoms.

Identification and Fermentation of a Streptomyces Producing Aurodox Group Antibiotics

  • Kim, Si-Kwan;Yeo, Woon-Hyung;Kim, Sang-Seock
    • Journal of Microbiology and Biotechnology
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    • v.6 no.4
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    • pp.260-264
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    • 1996
  • An isolate, 90-GT-129 was found to produce antibiotics with a selective inhibitory activity against Streptococcus pyogenes and Xanthomonas sp. The isolate formed a gray spiral aerial spore mass with smooth surface. Analysis of the cell wall acid hydrolysate of the isolate revealed presence of LL-di-aminopimelic acid, which indicates that the isolate belongs to a cell wall type Ⅰ actinomycetes. Cultural and physiological characteristics of the isolate placed it in Streptomyces rochei synonym cluster. A comparison of the isolate with 26 reference strains of Streptomyces rochei synonym demonstrated differences in physiological and cultural characteristics.

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Antibacterial, Free Radical Scavenging, and Proliferative Effects of Korean Fermented Soybean Paste (Doenjang) Extracts

  • Yun, Soon-Il
    • Journal of Applied Biological Chemistry
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    • v.48 no.3
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    • pp.138-143
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    • 2005
  • Antibacterial, free radical scavenging, proliferative, and cytotoxicity effects of Doenjang extracts were examined. All samples except water extract showed strong antibacterial activity against oral bacteria, Streptococcus. pyogenes, S. mutants, S. sanguinis, S. sorbrinus, S. criceti, S. antinosus, S. gordonii, and Porphyromonas. gingivalis (MIC and MBC values: 0.08-1.25 and 0.16-2.50 mg/ml, respectively). DPPH method showed ethanol and ethyl acetate extracts are effective inhibitors of oral bacteria. Based on MTT assay, 24 h exposure to 0.31 mg/ml of all extracts, excepted water extract, resulted in strong cytotoxicity on KB cells. All extracts strongly inhibited human gingival fibroblast viability.

Molecular Regulation of Pyrimidine Nucleotide Synthesis in Bacterial Genomes

  • Ghim, Sa-Youl
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 2001.06a
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    • pp.165-168
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    • 2001
  • Regulation of pyrimidine nucleotide synthesis has been studied extensively in enteric bacteria and Bacillus species. Varieties of control modes have been proposed for regulation of pyrimidine nucleotide biosynthetic (pyr) genes. In Bacillus caldolyticus and B. subtilis, it has been proved that pyrimidine de novo biosynthetic operon is controlled by a regulatory protein PyrR-mediated attenuation. Another Gram-positive bacteria including Enterococcus faecalis, Lactobacillus plantarum, and wctococcus lactis have been found to constitute a pyr gene cluster containing the pyrR gene. In addition, it has been proposed that the structure of the 5' leader region of the Gram-negative extreme thermophile Thermus strain Z05 pyr operon provides a novel mechanism of PyrR-dependent coupled transcription-translation attenuation. Bacterial genome sequencing projects have identified the PyrR homologues in Haemophilus influenzae, Synechocystis sp., Mycobacterium tuberculosis, Streptococcus pneumoniae, S. pyogenes, and Clostridium acetobutylicum, which are currently investigating for their physiological functions.

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대웅세파(DWC-751)의 약효연구

  • 최웅칠;유영효;심점순;최문정;박남준;김병오
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1993.04a
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    • pp.106-106
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    • 1993
  • DWC-751은 그람양성 및 음성균주에 대하여 광범위한 항균스펙트럼을 가지는 것으로 나타났다. 그람양성균 S. aureus에 대하여는 cefpirome과 동등하며, cefotaxime 보다 4배, ceftazidime보다 16배 우수하였고 그람음성균에 대하여 DWC-751의 항균력은 cefpirome, cefotaxime보다 2배, ceftazidime보다 4-8배 우수하였다. Ps. aeruginosa에 대한 DWC-751의 항균력은 ceftazidime과 거의 동등한 항균력을 나타내었고, cefpirome보다 2배, cefotaxime보다 4-8배 우수한 항균력을 나타내었다. 임상분리균주 및 ofloxacin 내성균주에 대한 DWC-751의 항균력은 표준균주에 대한 결과와 같이 대조약물보다 우수하였다. 전신감염치료효과에 있어서 Streptococcus pyogenes, Serratia marcescens, Acinetobacter calcoaceticus, Morganella morganii, Proteus mirabilis에 대한 동물실험 결과, ED$_{50}$치에 의한 효능은 cefotaxime 보다 우수하였으며,Enterobacter cloacae, Pseudomonas aeruginosa에 대하여는 ceftazidime과 거의 동등하였다.

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A case report of a streprococcal skin disease patient who improved with soeumin therapy (연쇄상구균을 동반한 피부증세를 치료한 소음인(少陰人) 환자(患者) 치험례)

  • Kim, Na-Young;Shin, Mi-Ran
    • Journal of Sasang Constitutional Medicine
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    • v.21 no.2
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    • pp.153-162
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    • 2009
  • 1. Objectives : The purpose of this rase study is to evaluate the superiority of Sasang constitutional diagnosis and treatment in skin disease compared with western medicine and is to notify the importance of elevating requsite qi(保命之主) in treatment of skin disease. 2. Method : We compared to remedical value in two case. One is to use herbal medicine as well as routine antibiotic treatment. The other one is to use only herbal medicine. Antibiotics was focused on attacking the pathogen and herbal medicine was focused on elevating requsite qi(保命之主). 3. Result and conclusions : In result, the one using only herbal medicine showed satisfactory progress and predominant remedical value compared with one using herbal medicine and routine antibiotic. So It is necessary to approach skin disease in view of elevating requsite qi(保命之主).

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