• 제목/요약/키워드: Antibiotic resistant

검색결과 802건 처리시간 0.03초

Screening and isolation of Antibiotic Resistance Inhibitors from Herb Materials IV- Resistance Inhibitors from Anetheum graveolens and Acorns gramineus

  • Kim, Hye-Kyung;Moon, Kyung-Ho;Ryu, Shi-Yong;Moon, Dong-Cheul;Lee, Chung-Kyu
    • Archives of Pharmacal Research
    • /
    • 제21권6호
    • /
    • pp.734-737
    • /
    • 1998
  • The hexane fractions from methanolic extracts of Anetheum graveolens L. (Umbelliferae) and Acorus gramineus Soland. (Araceae) revealed potent inhibitory activities against the resistance of multi-drug resistant Staphylococcus aureus SA2 when combined with ampicillin (Am) or chloramphenicol (Cm). As active principles, carvone and the liquid mixture containing carvone from Anetheum graveolens L. and a liquid mixture mainly consisting of benzoic acid phenyl-methyl ester (benzyl benzoate) from Acorus gramineus Soland. were identified. They showed resistance inhibition at the level of 20-50${\mu}g$/ml when combined with 100 or ${\mu}g$/ml of Am or Cm, respectively.

  • PDF

클로람페니콜 내성 플라스미드 pKH7의 Pre 단백질의 염기서열 결정 (Nucleotide Sequence of Pre Protein in Chloramphenicol Resistance Plasmid pKH7.)

  • 문경호;박봉동;이동석;이백락
    • 한국미생물·생명공학회지
    • /
    • 제26권6호
    • /
    • pp.566-568
    • /
    • 1998
  • Partial nucleotide sequence (nt 1-1842) of chloramphenicol resistance plasmid pKH7 has been reported previously and residual nucleotide sequence (nt 1843-4118) of pKH7 was determined and then the complete nucleotide sequence of pKH7 was obtained. pKH7 consists of 4118 bp and has three ORFs. Besides Rep and CAT proteins described in previous paper, Pre protein which mediates site-specific recombination in Staphylococcus aureus was found to be on pKH7. R $S_{A}$, a site-specific recombination site of Pre protein, and palA, a specific lagging-strand conversion signal, was also found in pKH7. Amino acid sequence of Pre protein of pKH7 was compared with those of other antibiotic resistant Staphylococcus aureus plasmids.s.

  • PDF

신규 세파로스포린 항생제 DWC-751의 in vitro 항균작용 (In vitro Antibacterial Activity of DWC-751, n New Parenteral Cephalosporin)

  • 심점순;최문정;박남준;김병오;유영호;최응칠
    • Biomolecules & Therapeutics
    • /
    • 제1권2호
    • /
    • pp.196-203
    • /
    • 1993
  • We compared in vitro antibacterial activity of DWC-751, a new parenteral cephalosporin antibiotic, with those of cefpirome (CPR), cefotaxime (CTX) and ceftazidime (CAZ). DWC-751 showed a broad antimicrobial spectrum against Gram-positive and negative bacteria. The antibacterial activity of DWC-751 against Stapylococcus aureus was equal to that of CPR and superior to those of CTX and CAZ. The activity of it against Excherichia coli was more potent than those of CPR, CTX and CAZ. Against Pseudomonas aeruginosa, DWC-751 was slightly inferior to that of CAZ and superior to those of CPR and CTX. The antibacterial activity of DWC-751 was superior to those of CPR, CTX and CAZ against clinical isolates and ofloxacin resistant strains. DWC-751 showed bactericidal action against Escherichia coli at concentrations close to the MIC and induced the formation of filament and burge and lysis of Escherichia coli in a microscopic examination.

  • PDF

이상와 누공으로 인한 급성 화농성 갑상선염 치료 1예 (Treatment of Acute Suppurative Thyroiditis Caused by Pyriform Sinus Fistula : 1 Case Report)

  • 이현수;강보성;김정태;김재욱
    • 대한두경부종양학회지
    • /
    • 제31권2호
    • /
    • pp.70-73
    • /
    • 2015
  • Acute suppurative thyroiditis is rare, infectious thyroid disorder because the thyroid gland is resistant to infection. We report a 26-year-old man with acute suppurative thyroiditis due to a pyriform sinus fistula. He presented with anterior neck swelling and tenderness for 2 weeks. Antibiotic treatment failed to improve his symptoms and signs. Diagnosis was made by bariums studies, computed tomography scan and endoscopic examination. The pyriform siuns fistula was successfully treated by chemical cauterization, partial thyroidectomy and ligation of fistula tract.

  • PDF

Screening and Isolation of Antibiotic Resistance Inhibitors from Herb Materials. I.-Resistance Inhibition of 21 Korean Plants

  • Kim, Hye-Kyung;Park, Soo-Wan;Park, Joong-Nam;Moon, Kyung-Ho;Lee, Chung-Kyu
    • Natural Product Sciences
    • /
    • 제1권1호
    • /
    • pp.50-54
    • /
    • 1995
  • Staphylococcus aureus SA2, which was isolated from patient, is resistant to 10 usual antibiotics. The methanolic extracts of 21 well-known herb materials were combined with 10 antibiotics and applied to cheek inhibitory effects on the resistance of S. aureus SA2. The hexane fractions from methanolic extracts of Acori graminei Rhizoma and Anethi Fructus had most potent activity to inhibit the resistance of the bacteria when combined with ampicilin or chloramphenicol.

  • PDF

외과영역에서의 감염증에 대한 Vistamycin 의 사용경험 (Clinical Studies on Ribostamycin sulfate)

  • 강정호
    • Journal of Chest Surgery
    • /
    • 제11권3호
    • /
    • pp.368-372
    • /
    • 1978
  • Ribostamycin sulfate is a new aminoglycoside antibiotic which is effective against organisms resistant to other conventional antibiotics, Particularly E. coli, and Staphylococcus group. Our clinical studies were performed on 20 patients who were admitted to Thoracic Surgical Dept of National Medical Center from May '77 to September '77, and the following results were obtained; 1. Among 20 patients, 13 were excellently improved and 4 responded moderataly, but 3 patients were not improved. So, 85% of the patients were controlled with Ribostamycin sulfate administration. 2. The rate of effectiveness of Ribostamycin sulfate was 85.7% against E. coli, 92.3% against Staphylococcus, and 75% against klebsiella, revealing 83.3% in average. 3. No side effects were observed. 4. From our clinical studies, Ribostamycin sulfate is expected to possess in high therapeutic value in surgical infectins caused by both gram positive and negative microorganisms.

  • PDF

Comparative In vitro Antibacterial Activity of DA-1131, A New Carbapenem Antibiotic(II)

  • Kim, Ji-Young;Kim, Gye-Won;Park, Seong-Hak;Lee, Choon-Woo;Rhee, Jae-Keol;Junnick Yang
    • 한국응용약물학회:학술대회논문집
    • /
    • 한국응용약물학회 1996년도 춘계학술대회
    • /
    • pp.233-233
    • /
    • 1996
  • 배지의 영향에 대하여 검토하기 위하여 SDA, MHA, NA 및 BHIA를 사용하였으며, 시험균주 중 Pseudomonas aeruginosa에 대하여만 NA에서의 MIC 값이 낮게 나타났을 뿐 나머지 균주에 대하여는 배지에 따른 항균력 변화가 관찰되지 않았으며, 배지의 pH를 5.4-8.4까지 변화시켰을 때 pH 변화에 따른 DA-1131의 유의적인 항균력 변화와 접종균량에 따른 항균력 변화가 관찰되지 않았다. Methicillin-resistant Staphylococcus aureus(MRSA)에 대하여는 DA-1131과 vancomycin 간의 상승 및 상가작용이 관찰되었고, P. aeruginosa, Klebsiella pneumoniae, Enterobacter cloacae 및 Serratia marcescens 등의 균종에 대하여는 ciprofloxacin의 상가작용이 확인되었다. Sisomicin은 P. aeruginosa에 대한 상승 및 상가작용이 인정되었으나 ceftazidime은 DA-1131에 의한 길항작용이 관찰되었다.

  • PDF

공정서 수재생약 정유의 항생제 내성억제작용 검색(I) (The Screening of Antibiotics Resistance Inhibition of Herb Drugs entered in Korean Official Formulary (I))

  • 이정규;김동명
    • 생약학회지
    • /
    • 제39권4호
    • /
    • pp.369-380
    • /
    • 2008
  • The essential oils from 73 aromatic herb drugs entered on Korean official formularies were tested for antibioticresistance inhibitory effect. When the oils were combined with ampicillin (Am) or amoxicillin (Amx) they showed significant inhibitory effects on the growth of multi-drug resistant Staphylococcus aureus SA2 in considerably low concentration. The most effective combination were oils from Magnoliae Flos or Piperis longi Fructus ($25{\mu}g/mL$)-Am or Amx ($4{\mu}g/mL$).

토양길항세균 Bacillus sp. KL-3의 대사산물을 이용한 벼도열병균 Pyricularia oryzae의 생물학적방제

  • 김규영;김상달
    • 한국미생물·생명공학회지
    • /
    • 제25권4호
    • /
    • pp.396-402
    • /
    • 1997
  • Biocontrol of plant pathogens provides an alternative means of reducing the incidence of plant diseases without the negative aspects of chemical pesticides. Nowdays, as the resistant fungi about the chemical fungicides have revealed and the concern of environment has increased, the biological control of phytopathogenic fungi by the antagonistic microorganisms is very much indispensable. For the selection of strong antagonistic bacterium for biological control agent of rice leafblast and cucumber gray mold rot, the antifungal strain KL-3 strain was selected among 120 strains isolated from the rhizosphere soils. And the strain was identified to be a species of Bacillus subtilis or closely related strain. In several biochemical and in vitro antibiosis tests, antifungal substances of Bacillus sp. KL-3 were presumed heat stable, micromolecular antibiotic substances. In vivo test and vinyl house field test, the antifungal substances of Bacillus sp. KL-3 represented excellent biocontrol ability aganist Alternaria mali, Phyricularia oryzae, and Alternaria kikuchiana as well as broad spectrum of other fungi. In particular, Bacillus sp. KL-3 strain showed more predominant activity than some chemical fungicides against fungi shown to resist chemcal fungicides.

  • PDF