• Title/Summary/Keyword: ampicillin

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Antibiotic sensitivity and resistance of bacteria from odontogenic maxillofacial abscesses

  • Kang, Sang-Hoon;Kim, Moon-Key
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.45 no.6
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    • pp.324-331
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    • 2019
  • Objectives: This study investigated the types and antibiotic sensitivity of bacteria in odontogenic abscesses. Materials and Methods: Pus specimens from 1,772 patients were collected from affected areas during incision and drainage, and bacterial cultures and antibiotic sensitivity tests were performed. The number of antibiotic-resistant bacteria was analyzed relative to the total number of bacteria that were tested for antibiotic susceptibility. Results: Bacterial cultures from 1,772 patients showed a total of 2,489 bacterial species, 2,101 gram-positive and 388 gram-negative. For penicillin G susceptibility tests, 2 out of 31 Staphylococcus aureus strains tested showed sensitivity and 29 showed resistance. For ampicillin susceptibility tests, all 11 S. aureus strains tested showed resistance. In ampicillin susceptibility tests, 46 out of 50 Klebsiella pneumoniae subsp. pneumoniae strains tested showed resistance. Conclusion: When treating odontogenic maxillofacial abscesses, it is appropriate to use antibiotics other than penicillin G and ampicillin as the first-line treatment.

Detection of N,N-Dimethylaniline in Ampicillin Trihydrate by Thin Layer Chromatography and Densitometry (박층크로마토그라피 및 농도 측정법에 의한 Ampicillin Trihydrate 중의 N,N-Dimethylaniline의 검색)

  • 이왕규;김박광;심창구
    • YAKHAK HOEJI
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    • v.22 no.4
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    • pp.238-241
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    • 1978
  • A simple and convenient method of detecting N, N-dimethy laniline (D.M.A.) residues in ampicillin trihydrate (A.T.) was established. D.M.A. was extracted by chloroform from the chloroform presaturated N/10-ammonia water solution of A.T. and chromatographed on silica gel G thin layer. Blue spot appeared in 15minutes after spray of 2, 6-dichloroquinonechlorimide solution was compared with the blue spot of reference concomitantly processed. The developing solvent was prepared by mixing equal volume of cyclohexane and chloroform. To quantitate the amount of D.M.A. in A.T., T.L.C. was performed with the Eastmann Chromatogram sheet, then color density was measured by Cosmo Superclick densitometer. The developing solvent at this time was cyclohexane-chlorofonn (3+7) mixture. The peak areas obtained with the amount of D.M.A ranging from 0.05 to 2.0 .mu.g were linear to color density. Better sensitive results would be available with the densitometer equipped with monochromator.

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Investigation for the Infectious Diarrhea by Pathogenic Microorganism from Hospitals in ChungNam Province in 2004 (2004년 충남지역 의료기관의 설사환자 가검물에서 분리된 병원성미생물 감염실태에 관한 조사연구)

  • Kim, Woo-Sik;Song, Nak-Soo;Sung, Si-Yeoul;Cha, Yeun-Tae;Seo, Woo-Sung;Lee, Moo-Sik;Kim, Keon-Yeop;Na, Bak-Ju
    • Journal of agricultural medicine and community health
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    • v.30 no.2
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    • pp.137-149
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    • 2005
  • Objectives and Methods: This study was performed to investigate the etiologic bacterial, viral and protozoal organisms for the diarrhea from hospitals in Chungnam area from January to December in 2004. Total of 787 fecal samples were collected and examined. Results and Conclusions: In test for enteropathogenic bacteria, total of 79 cases out of 787 samples from hospitals showed positive isolation. Among 79 positive samples, 27 cases were confirmed as Salmonella spp.. 20 cases as pathogenic E. coli, 18 cases as Clostridium perfringens, 6 cases as Staphylococcus aureus, 4 cases as Shigella spp. and 4 cases as Vibrio parahaemolyticus. In test for enteropathogenic virus, 190 cases out of 787 samples from hospitals showed positive reaction. Among 190 samples, 115 cases were confirmed as rotavirus, 55 cases as norovirus, 5 case as astrovirus, 4 case as rotavirus & norovirus, 3 cases as adenovirus, 2 case as rotavirus & astrovirus. In test for enteropathogenic protozoa, 6 cases out of 787 samples from hospitals showed positive result. Among 6 samples, 5 cases were confirmed as Entamoeba histolytica and 1 cases as Giardia lamblia. When we classified the positive results by the age of the patients, the highest isolation rate was noted in a group of age under 10 and over 60 for bacterial, viral and protozoal pathogens. Especially, patient below age of 5 showed high positive rate. When we classified the positive results by the time, pageathogenic bacteria were isolated throughout the year, and the highest frequency was noted in August. On the other hand, pathogenic viruses were detected more frequently during the colder season from December to April. Antimicrobial susceptibility test for the isolated bacteria resulted as follows; Salmonella strains showed high drug resistance rates against ampicillin, chloramphenicol, tetracycline, nalidixic acid, ticarcillin. Shigella strains showed high drug resistance rates against ampicillin, trimethoprim/sulfamethoxazole, chloramphenicol, tetracycline, ampicillin/sulbactam, ticarcillin. Pathogenic E. coli strains showed high drug resistance rates against ampicillin, cephalothin, gentamicin, tetracycline, nalidixic acid, ampicillin/sulbactam, ticarcillin.

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Antibiotic Resistance Among Salmonella spp. Isolated from Feces of Patients with Acute Diarrhea in Gwangju Area, Korea, during 2000-2009 (2000년-2009년 광주 광역시 지역의 급성설사환자의 분변에서 분리한 살모넬라 균주에서의 항생제 내성률 조사)

  • Kim, Tae Sun;Kim, Min Ji;Kim, Sun Hee;Seo, Jin-Jong;Kee, Hye Young;Chung, Jae Keun;Kim, Eun Sun;Moon, Yong Woon;Ha, Dong Ryong;Kim, Min Kyeong;Lim, Suk Kyung;Nam, Hyang-Mi
    • Korean Journal of Microbiology
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    • v.49 no.2
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    • pp.118-125
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    • 2013
  • Antibiotic susceptibility was examined for 596 Salmonella isolates from patients with acute gastroenteritis during 2000-2009 in Gwangju area in South Korea. Of 16 antibiotics tested, ampicillin resistance (43%) was the most commonly observed resistance among the 596 Salmonella sp. isolates, followed by tetracycline (35.9%), nalidixic acid (31.5%), and chloramphenicol (26.2%). Antibiotic resistance varied among serotypes: The highest resistance of S. Enteritidis and S. Typhimurium was to ampicillin (51.1%) and tetracycline (77.9%), respectively. A total of 89 resistance patterns were observed, and 26% (155/596) of Salmonella isolates were susceptible to all antibiotics tested in this study. About 21% (127/596) and 15% (87/596) of the isolates were resistant to one and two antibiotics, respectively. The rest of Salmonella isolates (227/596, 38%) were resistant to three or more antibiotic agents. The highest multi-drug resistance (MDR) was observed in serotype S. Paratyphi B (76.5%), followed by S. Typhimurium (58.2%), and S. Enteritidis (40.2%). The most common resistance pattern of MDR isolates was ampicillin-chloramphenicol-nalidixic acid-ticarcillin (36/227, 15.8%), most of which (35/36, 97.2%) were S. Enteritidis.

Antimicrobial Resistance and Multidrug Resistance Patterns of Salmonella enterica serovar Enteritidis Isolated from Diarrhea Patients, Incheon (인천지역 설사환자에서 분리한 Salmonella enterica serovar Enteritidis의 항생제 내성 및 다제내성 양상)

  • Hwang, Kyoung-Wha;Oh, Bo-Young;Kim, Jung-Hee;Kim, Myeong-Hee;JeGal, Seung;Lee, Eun-Ju;Lee, Eun-Jung;Cho, Nam-Kyu;Go, Jong-Myoung;Kim, Yong-Hee
    • Korean Journal of Microbiology
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    • v.45 no.2
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    • pp.99-104
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    • 2009
  • This study describes the antimicrobial susceptibility and multidrug resistance patterns in 115 isolates of Salmonella enterica serovar Enteritidis from diarrhea patients in Incheon from Jan. 2004 to Dec. 2008. Overall, the highest rate of resistance was found to the following antimicrobial agents: nalidixic acid 54.8%, ampicillin 40.0%, ticarcillin 38.3%, chloramphenicol 20.9%, and tetracycline 17.4%. 91% (104 isolates) were resistant to one or more antimicrobial agents tested. Among the described antimicrobial resistant patterns, the predominant patterns were only nalidixic acid (44.3%), ampicillin-chloramphenicol-ticarcillin (11.3%,) and ampicillin-ticarcillin (10.4%). Overall, the resistant rate to one drug was 51.9%, two drugs 18.2%, three drugs 14.5%, four drugs 5.8%, and five or more drugs 9.7%.

Antmicrobial Drug Susceptibility of Pathogenic Bacteria Isolated from Animals in Korea (동물유래(動物由來) 병원세균(病源細菌)의 각종(各種) 항생물질(抗生物質)에 대한 감수성조사(感受性調査))

  • Kim, Bong Hwan;Rhee, Jae Chin;Kim, Ki Seuk;Han, Tae Woo
    • Korean Journal of Veterinary Research
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    • v.20 no.2
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    • pp.85-92
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    • 1980
  • The antimicrobial drug susceptibility of 439 isolates of animal pathogens recovered from various clinical cases during 1978-79 has been investigated by the use of disk diffusion technique. The majority of 308 strains of Eschericihia coli were highly resistant to bacitracin, erythromycin, penicillin, streptomycin and tetracyclinon while only 0.3 per cent of them were resistant to gentamicin and 3.2 per cent to colistin. The percentages of strains resistant to ampicillin, carbenicillin, cephalothin, chloramphenicol and neomycin were 30.5%, 24.7%, 11:4%, 28.2% and 26.2% and repectively. However, none of E. coli cultures of ovine origin were resistant to ampicillin, carbenicillin, chloramphenicol, colistin, gentamicin, kanamycin, and neomycin. A total of 39 patterns of multipe drug1 resistance of 308 strains E. coli against 9 drugs in general use such as ampicillin, cephalothin, chloramphenicol, colistin, gentamicin, kanamycin, neomycin, streptomycin and tetracycline were observed and the most common multiple resistance patterns were SM, TC pattern (20.5%) and AM, CP, KM, NM, SM, TC pattern (9.7%). None of the 43 cultures of salmonella organism from pigs and chickens were resistant to ampicillin, carbenicillin, cephalothin, colistin, gentamicin and kanamycin; and the majority of the cultures were susceptible to chloramphenicol (90.0%), neomycin (97.7%) and tetracycline (93.0%). All the cultures were found to be resistant to bacitracin and penicillin and the rate of resistant strains to erythromycin and s treptomycin being 79.1% and 41.9% respectively. It was found that the majority of 63 cultures of staphylococcal isolates were resistant to lincomycin, penicillin, streptomycin and tetracycline. The percentages of 63 staphylococcal isolates susceptible to gentamicin, nitrofurantoin, cephalothin, ampicillin, methicillin, bacitracin and chloramphenicol were 98.4%, 98.4%, 95.2%, 93.7%, 93.7%, 92.1% and 92.1% respectively. The 25 cultures of streptococcal isolates were resistant in order of prevalence to streptomycin(88.0%), kanamycin(68.0%), gentamicin (44.0%), tetracycline (44.0%) and methicillin (40.0%) wihle the majority of them were sensitive to ampicillin, bacitracin, chloramphenicol and penicillin.

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Preparation and Characterization of Antimicrobial Films Using Water Soluble Polymer (수용성 고분자를 이용한 항균 필름의 제조 및 특성 연구)

  • Choi, Jun Ho;Choi, Yoo Sung;Oh, Il Hong;Kim, Maeng Su;Lee, In Hwa
    • Korean Chemical Engineering Research
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    • v.49 no.4
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    • pp.449-455
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    • 2011
  • This study was performed to develop antimicrobial films using polyvinyl alcohol and methyl cellulose. Methyl cellulose and polyvinyl alcohol films plasticized with PEG(polyethylene glycol) were prepared by solvent casting process under addition of 0.025~1.0 wt% ampicillin and 0.1~1.0 wt% streptomycin as an antimicrobial agent. The mechanical properties of prepared films were examined by universal testing machine(UTM). Tensile strength of methyl cellulose films was 15.44~21.70 $N/mm^2$. Tensile strength of PVA(15 wt%) film was 20.2~51.5 $N/mm^2$, and the tensile strength of the antimicrobial films were decreased linearly with increasing the antibiotic loading amount up to 1 wt%. Antimicrobial activities of PVA and methyl cellulose films containing ampicillin and streptomycin through the disc diffusion test for the Staphylococcus aureus and Escherichia coli. The antimicrobial activity of methyl cellulose films and PVA containing ampicillin were higher than that of containing streptomycin methyl cellulose films. The results indicate the films may be a proper materials for antimicrobial packing applications.

Serotyping and antibiotic susceptibility of Salmonella species from pigs with rectal stricture found in slaughterhouses (도축장 출하 직장협착 돼지에서 분리된 살모넬라균 혈청형 및 항생제 감수성)

  • Jiyeon Kim;Jinju Gwak;Doori Seo;Jaegi Lee;Daewoong Lim;Hana Kim;Jiyeong Park;Jongwoog Choi;Byeongcheol Yoon
    • Korean Journal of Veterinary Service
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    • v.46 no.2
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    • pp.137-145
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    • 2023
  • From November 2021 to October 2022, 151 pigs were discarded due to the suspected salmonellosis, when assessed by antemortem inspection at slaughterhouses in Gwangju. Among them, 85 cases shown with the rectal stricture were confirmed to be infected with Salmonella spp, when assessed by postmortem inspection and Salmonella-oriented culture in the laboratory, accounting for 56.3% of the carcass discard cases. Salmonella spp. were isolated in 58 cases (68.2%) out of 85 total discard cases. As for serotyping of the Salmonella isolates, 28 cases (48.3%) belonged to serogroup B and 28 cases (48.3%) belonged to serogroup C, those were the most frequent isolates, and 2 cases (3.4%) belonged to serogroup E. The most prevalent serotype was Rissen (39.7%), followed by I4,[5],12:i:-(37.9%), Derby (8.6%), Bareilly (5.2%), Infantis (3.4%), Give (3.4%), and Typhimurium (1.7%). The 58 isolates of salmonellae showed resistance to tetracycline (63.8%), chloramphenicol (56.9%), ampicillin (53.4%), and ampicillin-sulbactam (51.7%). S. Rissen showed resistance to chloramphenicol (82.6%), ampicillin (52.2%), ampicillin-sulbactam (52.2%), and tetracyclin (47.8%). S. I4,[5],12:i:-was resistant to tetracycline (90.9%), ampicillin (81.8%), ampicillin-sulbactam (77.3%), and chloramphenicol (59.1%). Among the isoates, S. Bareilly (3 strains), S. Infantis (2 strains), S. Give (2 strains), S. Rissen (3 strains), and S. I4,[5],12:i:- (1 strain) showed no resistance to the tested antimicrobials. As for the prevalence of the antibiotic resistance pattern, AM-SAM-TE-C was the most common, which was shown in 15.5% of S. Rissen. At second, the resistance pattern was occurred as AM-SAM-TE (12.1%) and AM-SAM-CF-CZ-FOX-CTX-NA-TE-C (12.1%), respectively in the case of S. I4,[5],12:i:-.

Synthesis and Antibiotic Activities of Poly (acrylic acid) Modified $\beta$-Lactam Cyclics ($\beta$-락탐계 항생물질의 폴리아크릴산 중합체의 합성 및 항균성)

  • 진정일;최성모;장민선;민신홍
    • YAKHAK HOEJI
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    • v.30 no.5
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    • pp.232-237
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    • 1986
  • A series of modified poly(acrylic acid)'s containing different levels of 6-aminopenicillanic acid (6-APA), 7-aminocephalosporanic acid (7-ACA) and 6-[D-(-)-$\alpha$-aminophenyl acetamido] penicillanic acid (ampicillin) as pendant groups were prepared. Antibiotic activities of the newly prepared drugs were examined against the various gram-positive and gram-negative bacteria. It was found that ampicillin modified composition posses antibiotic activities against the gram-negative as well as the gram-positive bacteria.

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Synthesis and Antimicrobial Activty of Methampicillin Lysinate (Mathemapicillin lysinate의 함성및 항균작용)

  • 김종갑;이숙경
    • YAKHAK HOEJI
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    • v.21 no.4
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    • pp.211-213
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    • 1977
  • Since ampicillin, one of the important semi-synthetic derivatives of penicillins, is restricted in use because of its unfavorable physico-chemical and pharmacological properties, the author synthesized a new derivative, methampicillin lysinate and its physical and characteristics were determined. The antibacterial activity of this compound against ten species of Gram positive and negative bacteria in vitro showed that it was more active to Gram negative bactria than the positive and that was three times more potent than ampicillin trihydrate.

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