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Biomedical subjects

J M Hubrechts

Publications and source records attributed to J M Hubrechts.

At least 19 recordsLinked to original sources
PubMed1990

Activity of cefotiam in combination with beta-lactam antibiotics on enterobacterial hospital strains.

By using checkerboard titrations the effect of cefotiam combined with different beta-lactam antibiotics on fifty strains of Enterobacteriaceae moderately susceptible (minimal inhibiting concentration greater than or equal to 8 mg/l) or resistant (minimal inhibiting concentration greater than or equal to 64 mg/l) to cefotiam was evaluated. The following compounds were tested: cefamandole, cefazolin, cefmenoxime, cefotaxime, cefotiam, ceftazidime, cefuroxime, mecillinam and piperacillin. The synergistic effect varied markedly. The combination cefotiam-mecillinam showed the highest rate of synergistic activity. Antagonism was found in 1% of the combinations.

Anti-Bacterial Agents↗
PubMed1990

[Antibacterial activity of carumonam and cefpirome on hospital strains resistant to gentamicin and cephalothin: comparison with other beta-lactam antibiotics, new fluoroquinolones, aminoglycosides and other antibiotics].

The antibacterial in vitro activity of carumonam, a new monobactam, and cefpirome, a new cephalosporin, was studied on 483 hospital strains resistant to gentamicin and cephalothin, in comparison with amikacin, azlocillin, aztreonam, cefmenoxim, cefoperazone, cefotaxim, cefsulodin (for Pseudomonas), ceftazidime, ceftriaxone, cefuroxim, chloramphenicol, ciprofloxacin, doxycycline, enoxacin, netilmicin, norfloxacin, pefloxacin, piperacillin, rifampicin, tobramycin and trimethoprim. In general the two compounds have a very good in vito activity on Enterobacteriaceae but are less active on non-fermenting microorganisms. For the Enterobacteriaceae the minimal inhibitory concentrations 90% for carumonam was less than or equal to 1.1 mg/l excepted for Enterobacter spp. (43,6 mg/l) and M. morganii (56.8 mg/l) . All the Enterobacteriaceae are susceptible to cefpirome (minimal inhibitory concentrations 90% less than or equal to 5.3 mg/l). The activity of carumonam and cefpirome on Enterobacteriaceae is comparable with that of the third generation cephalosporins. Carumonam is more active than cefpirome and other beta-lactams, ceftazidime excepted, on Pseudomonas aeruginosa and Pseudomonas spp. On the other hand, both compounds reveal to have only a low activity on the other non-fermenters which minimal inhibitory concentrations 90% values of 115.4 mg/l for carumonam and 32.0 mg/l for cefpirome.

Aminoglycosides↗
PubMed1988

Three-year survey of amikacin use and aminoglycoside resistance in a general hospital in Belgium.

The aim of the study was to evaluate the effect of intensive use of amikacin on the resistance levels to amikacin, gentamicin, tobramycin, netilmicin and dibekacin. The base-line resistance in the preamikacin phase (three months of amikacin use less than 1%; 676 isolates) was 1.0% for amikacin, 11.4% for gentamicin, 8.0% tobramycin, 6.2% for netilmicin and 8.3% for dibekacin. During the amikacin phase (36 months of average amikacin use of 89%; 6048 isolates) there was no significant change in aminoglycoside resistance except for dibekacin (from 8.3% to 10.9%, 0.05 greater than p greater than 0.02). Isolated amikacin resistance was not observed.

Amikacin↗
PubMed1988

[In vitro bacteriostatic and bactericidal effect of ciprofloxacin and others quinolone derivatives on Campylobacter jejuni].

The in vitro bacteriostatic (MIC) and bactericidal (MBC) activities of ciprofloxacin and seven other quinolone derivatives on Campylobacter jejuni from human origin were determined. Ciprofloxacin, pefloxacin and rosoxacin exhibited the best bacteriostatic and bactericidal activities. For the three compounds the MIC90 was less than or equal to 0.33 microgram/ml while the MBC90 was resp. 0.36, 0.56 and 0.56 microgram/ml. The MBC values were always significantly higher than the MIC values (P less than 0.001). An attempt was made to select strains with an induced resistance against the quinolone derivatives.

Anti-Bacterial Agents↗
PubMed1986

Antibacterial activity of enoxacin: comparison with aminoglycosides, beta-lactams and other antimicrobial agents.

The activity of enoxacin, a new quinolone carboxylic acid, was evaluated against 3014 clinical isolates of Enterobacteriaceae, Pseudomonas and other non-fermenters and Staphylococcus aureus. Comparison was made with gentamicin, tobramycin, amikacin, netilmicin, ampicillin, piperacillin, carbenicillin, ticarcillin, ticarcillin plus clavulanic acid, trimethoprim, cotrimoxazole and erythromycin. In general enoxacin was the most active compound and resistance was only rarely encountered.

Aminoglycosides↗
PubMed1984

[Cat-scratch disease].

A case of cat-scratch syndrome is described. The dermatological features and skin reactions reported in this illness (erythema nodosum, erythema multiforma) as well as the diagnostical criteria are reviewed. The hypothetical nature of the etiologic agent of this syndrome is discussed.

Adult↗
PubMed1982

[Rectal stenosis caused by cancer of the prostate: difficulties of diagnosis].

There exist rare cases in which a prostatic carcinoma invades the perirectal space producing an extrinsic rectal stenosis. Three cases are discussed. Differential diagnosis with a rectal tumor is difficult clinically, but deep rectal biopsies will provide the correct diagnosis in many cases. Estrogen therapy is recommended, but prognosis is reserved.

Aged↗
PubMed1982

In-vitro activity of 21 antimicrobial agents against Neisseria gonorrhoeae in Brussels.

The minimum inhibitory concentrations (MIC) of 21 antimicrobial agents was measured for 80 strains of Neisseria gonorrhoeae isolated in Brussels in 1978. Bimodal distributions were found for penicillin G, ampicillin, amoxycillin, carbenicillin, and cephalexin. Of the strains, 17.5% were relatively resistant to penicillin G (MIC greater than 0.08 microgram/ml) 27.5% to ampicillin (MIC greater than 0.16 microgram/ml), 23.8% to amoxycillin, and 43.3% to carbenicillin. Cefotaxime was the most active antibiotic, with MICs in the nanogram range; 3.8% and 5% of the strains were relatively resistant to cephaloridine and cephalexin respectively, but no strains were resistant to cefazolin, cefuroxime, or cefotaxime. Resistance to tetracycline, doxycycline, minocycline, erythromycin, and spiramycin (MIC greater than 1 microgram/ml) was found in 6.3%, 2.5%, 5%, and 51.3% of the strains respectively. A very good correlation was present between chloramphenicol and thiamphenicol, with 16.3% and 10% of relatively resistant strains respectively. Only two isolates showed an MIC greater than 1.25 microgram/ml for rifampicin, and 10% of the strains needed greater than or equal to 12 microgram/ml of spectinomycin for complete inhibition of growth. A very high energy was found for the 20 : 1 combination of sulphamethoxazole and trimethoprim, with only one isolate resistant to this combination. None of the strains tested produced beta-lactamase.

Anti-Bacterial Agents↗