• Journal of Korean Academy of Fundamentals of Nursing
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• v.18 no.1
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• pp.46-53
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• 2011

Purpose: The purpose of this study was to identify the effects of EMLA cream (eutectic mixture of local anesthetics, lidocaine and prilocaine) on pain during ampicillin sodium intradermal (ID) skin test, and also to assess skin reaction after the skin test. Methods: Forty-three nurse-volunteers had skin tests with 0.01ml-0.05ml ampicillin sodium antibiotics. Skin tests were done on each forearm to compare the pain level of the skin test site after application of EMLA cream with the pain level when no EMLA cream was applied. EMLA cream was applied at the ID skin test site with an occlusive dressing for one hour. Pain was evaluated using a visual analogue scale and pain sensation using the short form McGill Pain Questionnaire. The transverse diameter of the wheal and redness was read right after and at 15 minutes after the skin test. The results were compared using independent t-tests. Results: Pain score and sensation with EMLA cream treatment were significantly lower than when EMLA cream was not applied. There was no difference in skin reactions; reading of the skin test was not affected by EMLA cream. Conclusions: EMLA cream was found to be an effective local anesthetic to relieve the pain of clients having ampicillin sodium antibiotics ID skin tests.

• YAKHAK HOEJI
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• v.18 no.3
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• pp.190-196
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• 1974

A new colorimetric method established for the determination of ampicillin was based on the reductions of phosphomolybdic acid by ampicillin to be resutled in a molybdenum blue which showed a mezimal absorbance at 770nm. The pH effects on a molybodenum blue solution was dependent significantly on temeprature, but the wave-length shift was not effected by the molybdenum blue.

• YAKHAK HOEJI
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• v.30 no.1
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• pp.24-30
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• 1986

New antibiotics having moieties of penicillanic acid, cephalosporanic acid and ampicillin on both ends of the central alkylene were synthesized by reacting 6-aminopenicillanic acid (6-APA), 7-aminocephalosporanic acid (7-ACA) and ampicillin with hexamethylene diisocyanate and sebacoyl chloride, respectively. Antibacterial activities of the compounds were also investigated. The compound derived from sabacic acid and ampicillin exhibited an enhanced antibacterial activities against gram-negative bacteria and was found to be a promising wide-spectrum antibiotic.

• Archives of Pharmacal Research
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• v.17 no.5
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• pp.378-380
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• 1994

The hydrolysis of metampicillin to ampicillin was investigated using high perofrmance liquid chromatography. We developed the simultaneous determination of metampicillin and ampicilin using a Zorbox CN column and 5% acetonitrile and 8% methanol in 0.02 M phosphate buffer (pH 7.0) as mobile phase. Matampicillin was hdyrolyzed to ampicillin with half life of 41.5 min at physiological pH and temperature. In acdic pH, metampicillin was rapidly hydrolyzed to ampicillin within a chromatogrphic separation.

• YAKHAK HOEJI
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• v.20 no.1
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• pp.32-36
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• 1976

The pH titration curves of ampicillin, amoxicillin and cephalexin in aqueous acetone, ethanol and N, N'-dimethylformamide by use of 0.02N-KOH solution showed that 80% acetone was the most effective solvent for alkali titration of them. The pH jumps of samples in 80% acetone were sharp enough to determine the contents of them by use in 80% acetone (9, 4) was coincided with each equivalent point of ampicillin, amoxicillin and cephalexin, but those of phenolphthalein, thymolphthalein, thymol blue and bgrom cresol purple were not. The color change of brom thymol blue at equivalent points was very clear except the case of amoxicillin that the determination of smaples in 80% acetone with 0.02 N-KOH solution by the aid of brom thymol blue could be available.

• Korean Journal of Veterinary Research
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• v.25 no.1
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• pp.61-67
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• 1985

One hundred and twenty seven strains of Gram-negative rods (72 E. coli, 45 Klebsieila pneumoniae, 8 Enterobacter spp. and 2 Pseudomonas aeruginosa) isolated from bovine mastitis were examined for resistance to ampicilin, carbenicillin and cefazolin, ${\beta}$-lactamase activity and transferable ${\beta}$-lactamase plasmids. Stains resistant to ampicillin were 13.9% in E. coli, 93.3% in Klebsiella pneumoniae, 87.5% in Enterobacter. spp. and all in Pseudomonas aeruginosa, Resistance of E. coli, Klebsiella pneumoniae and Enterobacter spp. to ampicillin was due to the ${\beta}$-lactamases, but all Pseudomonas aeruginosa exhibited a high level of the non-enzymic resistance. Transferable plasmid-mediated ${\beta}$-lactamase synthesis was demonstrated in 61.9% of Klebsiella pneumoniae, 50% of E. coli and 42.9% of Enterobacter spp. The same ${\beta}$-lactamase plasmids specified different resistance levels to various ${\beta}$-lactam antibiotics in different recipients.

• Applied Biological Chemistry
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• v.33 no.4
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• pp.343-348
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• 1990

E. coli LE392, transformed with CDDP-treated pBR322 DNA, was plated on ampicillin containing media. The number of colonies formed on ampicillin containing agar plate was reduced to undetectable level after treat the DNA with 13.3 ${\mu}M$ CDDP. The CDDP-treated pBR322 DNA was susceptible to sing1e strand DNA specific S1 nuclease and it's migration Pattern in agarose gel electrophoresis was changed. These results suggest that CDDP adduction to pBR322 DNA resulted in denaturation of the double helix and changes in it's conformation which ultimately leads In the inactivation of the ampicillin resistant sere.

• Korean Journal of Poultry Science
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• v.7 no.1
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• pp.53-64
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• 1980

A total of 1503 specimens were submitted to the Poultry Disease Diagnostic Service Laboratory during the year 1966 and 1978. The most frequently diagnosed diseases in order of prevalence were avian mycoplasmosis, staphylococcosis, colibacillosis, salmonellosis and pullorum disease, the percentages of the conditions being 24.6%, 20.0%, 18.0%, 12.6% and 6.4%, respectively, The drug resistance of pathogenic mirnoorganisms isolated during the year 1978 from chicken with colicabacillosis, staphylococcosis or salmonellosis were investigated by the use of disc diffusion technique, the results being as follow. 1) Drug resistance of 63 strains of Escherichia coli More than 95% of the strains tested were sensitive to colistin and gentamicin. The percentages of strains sensitive to kanamycin, chloramphenicol, ampicillin and nitrofurantoin were 66.7%, 60.3%, 60.3% and 47.6%, respectively. Majority of the strains were highly resistant to streptomycin and tetracyline. All the strains were resisistant to bacitracin lincomycin, oleandomycin, penicillin and erythromycin. All the strains tested were resistant to more than two among 10 drugs in common use such as penicillin, erythromycin, streptomycin, tetracycline, neomycin, chloramphenicol, kanamycin, ampicillin and gentamicin, and 27 different resistance patterns were noted. The most frequent multiple resistance pattern was PC, EM, SM and TC (11.1%). 2) Drug resistance of 48 strains of Salmonella More than 95% of the strains tested were sensitive to colistin, gentamicin ana ampicillin. The percentages of st rains sensitive to kanamycin, tetracycline, neomycin and nitrofurantoin were 81,3%, 79%, 72.9%, and 68.0% respectively. None of them was sensitive to streptomycin, oleandomycin, erythromycin, lincomycin and bacitracin. All the strains were resistant to more than one among 7 drugs in common use such as streptomycin, erythromycin, neomycin, tetracycline, kanamycin, ampicillin and gentamicin. The most frequent resistance pattern was SM and EM(66.7%). 3) Drug resistance of 54 strains of Staphylococci All the strains tested were sensitive to gentmaicin, kanamycin and cephalothin. Majority of them were highly sensitive to bacitracin, methicillin, nitrofurantoin and chloramphenicol. The Percentages of strains sensitive to streptomycin, ampicillin, lincomycin and tetracycline were 66.7%, 55.6%, 44.4% and 27.8%, respectively. Among them, 51 strains were resistant to more than one among 11 drugs in common use such as tetracycline, lincomycin, ampicillin, penicillin, streptomycin, erythromycin, neomycin, oleandomycin, chloramphenicol, methicillin and bacitracin, and thirty one different resistance patterns were noted.

• Journal of Food Hygiene and Safety
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• v.21 no.1
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• pp.23-30
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• 2006

Antimicrobial susceptibility and multiple drug resistance patterns have been carried out on total of 364 isolates of Salmonella enterica serovar Enteritidis isolated from foodborne patients in Seoul from 2001 to 2005. Overall, the highest percentage of resistance was found to the following antimicrobial agents: streptomycin (46.7%), ampicillin (37.3%), ticarcillin (36.7%), tetracycline (36.0%), nalidixic acid (20.7%), chloramphenicol (13.3%), amoxicillin/clavulanic acid (6.7%) and Ampicillin/sulbactam (4.0%). Seventy five percentage of isolates were found to be resistant to one or more of the antimicrobes tested. The resistant rates to nalidixic acid and chloramphenicol in S. Enteritidis tested were annually increased but the resistant rate to tetracycline was decreased and the resistant rates to streptomycin, ampcilin and ticarcillin were remained steadily. The most frequent patterns of multiresistant isolates were only nalidixic acid resistant (18.0%) and streptomycin-tetracycline (18.0%), streptomycin-ampicillin-ticarcillin (10%), and ampicillin-ticarcillin (5.5%). Overall the resistant rates of 1 drug was 19.3%,2 drugs 24.7%, 3 drugs 6.7% and 4 or more drugs 24.0%. The resistant rates of 1 drug and 2 drugs in 2005 were increased dramatically.

• Journal of Yeungnam Medical Science
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• v.6 no.1
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• pp.59-68
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• 1989

Ceftizoxime sodium is a new synthetic ${\beta}$-lactam antibiotic combining potent antibacterial activity with high stability to a wide range of bacterial ${\beta}$-lactamase. This experiment was achieved to evaluate the antibacterial activities of ceftizoxime sodium againist Gram negative enteric bacteria isolated from in outpatient visiting Yeungnam university hospital and to study the emergence of drug induced bacterial varients which resist to ceftizoxime in vitro. The antibacterial activity of the ceftizoxime was compared with that of antibiotics and its effect on population of normal intestinal flora in mice was observed. The results are summarized as follows : 1. Highly effective antibacterial activity of ceftizoxime against Gram negative enteric bacilli was demonstrated and this antibacterial activity was superior to that of ampicillin. 2. Several test strains shows multiple antibiotic resistence. Among 15 strains of Escherichia coli, 1 strain was resistent to ampicillin, cefadroxyl, gentamicin, tetracycline, and 2 strains were resistent to ampicillin, cefadroxyl, tetracycline, five strains of Escherichia coli and Enterobacter cloacae was resistent to amplicillin, tetracycline and Shigella dysenteria was resistent to ampicillin, gentamicin, tetracycline. 3. The frequency of in vitro emergence of resistent varients among ceftizoxime sensitive bacteria in the presence of increasing concentrations of the compound was found to be low. 4. Plasmid was isolated in 6 of 9 strains (6 strains of Escherichia coli, Shigella dysenteriae, Enterobacter cloaceae and Salmonella typhi) That showed different antibiotic resistance. They were 5 strains of Escherichia coli and 1 strain of Shigella dysenteriae. However, plasmid could not be considered as a hallmark for antibiotic resistance by this. Further studies with curing experiment are to be accomplished for this purpose. 5. Changes in the bacterial count of normal intestinal flora following 25mg/kg/day administration of ceftizoxime over S consecutive days were not significant. In conclusion, ceftizoxime appeared to be a drug of choice in the treatment of Gram negative enteric bacilli infection.