Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0032285 (pneumonia)
 54,520 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Cefpirome (CPR, HR 810) was clinically evaluated for its efficacy and safety in 11 patients with ages from 4 months to 11 years with bacterial infection. The results obtained are summarized as follows. 1. CPR was administered to 6 patients with bronchopneumonia, a patient with pneumonia, a patient with tonsillitis, 2 patients with acute pharyngitis and a patient with suppurative parotitis at daily dosage levels ranging 55.5-91.7 mg/kg, divided into 3 using intravenous bolus injection or 30 minutes drip infusion. Clinical responses of the 11 patients were as follows: excellent; 8 patients, good; 2 patients, poor; 1 patient, hence the efficacy rate was 90.9%. 2. Neither clinical adverse reaction nor abnormal laboratory test value was observed except slight elevation of GOT and GPT in a patient and leukopenia in another. 3. MICs of CPR against 18 beta-lactamase producing strains isolated from patients were as follows. MIC against a strain of Staphylococcus aureus was 1.56 micrograms/ml, MICs against 3 strains of Klebsiella pneumoniae were less than 0.025 microgram/ml, those against 3 out of 5 strains of Enterobacter cloacae were less than 0.025 microgram/ml and those against the remaining 2 strains were 0.05 and 0.20 micrograms/ml. MICs against 2 out of 3 strains Acinetobacter lwoffi were 1.56 micrograms/ml, and that of the remaining 1 strain was 0.39 microgram/ml. MICs against 2 strains of Pseudomonas cepacia were 1.56 micrograms/ml. MICs against a strain of Pseudomonas putida and a strain of Citrobacter diversus were 0.78 and less than 0.025 microgram/ml, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Clinical evaluation of cefpirome in children]. 188 Sep 23

Cefpodoxime proxetil (RU 51807) is an enterally absorbed ester prodrug which is rapidly cleaved in vivo after oral administration, with release of the active free acid metabolite cefpodoxime. The in vitro antibacterial activity of the sodium salt of cefpodoxime (RU 51746) against approximately 800 clinical isolates was evaluated comparatively with other orally active beta-lactams. RU 51746 was found to be active against enterobacteria normally susceptible to third generation cephalosporins, with MIC50 values ranging from 0.02 mg/l (Providencia sp) to 5 mg/l (C. freundii). RU 51746 was also active against H. influenzae, including beta-lactamase producing strains (MIC50 0.04 mg/l), oxa-S S. aureus (2,5), beta-hemolytic streptococci (0.05) and S. pneumoniae (0.002). Oxa-R staphylococci and P. aeruginosa were resistant to RU 51746 (MIC50 greater than 40 mg/l for both organisms). The antibacterial activity of RU 51746 was bactericidal in nature and independent from test conditions. The molecule was stable to all the beta-lactamases studied, with the exception of cefuroximase (type Ic). RU 51746 exhibited no strong inhibitory effects on these enzymes, except with Enterobacter P99 (type Ia). A good correlation was found between in vivo activity of RU 51807 and in vitro activity of RU 51746. Cefpodoxime proxetil was found to be more effective than cefaclor in mice with experimental septicemia caused by various streptococci, with a DP50 ratio in the 10-100 range. This advantage was again evidenced for septicemias due to various enterobacteria. In contrast, cefaclor proved more effective in experimental staphylococcus infections. In mice with experimental pneumonia, cefpodoxime proxetil caused sharp falls in K. pneumoniae lung counts. Six days after induction of the infection, 60% of animals under cefpodoxime proxetil had sterile lungs, versus 25% of animals under amoxicillin.
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PMID:[RU 51807 (cefpodoxime proxetil). In vitro and in vivo antibacterial activity of a new orally administered active cephalosporin]. 190 3

Moraxella (Branhamella) catarrhalis is now a well-recognized pathogen in lower respiratory tract infections, particularly in the setting of chronic lung disease. The ability to produce beta-lactamase, which now characterizes most clinical strains, appears to be a recently acquired trait. The most common clinical syndrome caused by this organism is exacerbation of chronic bronchitis; this syndrome has been well described in Europe, Japan, and the United States, particularly from centers with a large elderly population with chronic lung disease. The syndrome of pneumonia is less common, and suppurative complications and bacteremia are rare.
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PMID:Moraxella (Branhamella) catarrhalis. 195 98

Cefixime (CFIX) was evaluated clinically in pediatric respiratory tract infections, particularly those caused by Haemophilus influenzae: 1. The total number of children in this study treated with CFIX was 232, out of which 215 cases were evaluated for clinical efficacy and 224 cases were investigated for safety. A daily dosage of 3-6 mg/kg/day was given divided into 2 to 3 times daily for 3-15 days. 2. Causative organisms were identified in 146 cases, out of which 128 cases were found to be single microbial infections and 18 cases were mixed infections. In single microbial infections, clinical efficacy was 100% for those caused by H. influenzae/Haemophilus parainfluenzae, and was 95% for Streptococcus pyogenes with an overall efficacy of 96.9%. In mixed infections, the clinical efficacy was 100% for those caused by a combination of H. influenzae and Streptococcus pneumoniae, and the overall rate was 94.4%. An involvement of H. influenzae was observed in 108 cases with a clinical efficacy rate of 99.1%, and definite involvement of beta-lactamase secreting strains of H. influenzae was found in 32 cases with a clinical efficacy of 96.9%. 3. Bacteriological effect was studied for 164 strains identified in 146 cases, and eradication rates were 89.5% for H. influenzae, 100% for H. parainfluenzae and S. pyogenes, and 71.4% for S. pneumoniae. The overall eradication rate was 91.4%. Superinfection was observed in 21 cases. MICs against 78 strains of H. influenzae were in a range of less than or equal to 0.10 microgram/ml regardless of beta-lactamase production, and far superior to cefaclor and amoxicillin. MICs against S. pyogenes and S. pneumoniae were in ranges of less than or equal to 0.10 microgram/ml and 0.39 micrograms/ml, respectively. 4. Clinical efficacy was 93.0% in 215 cases (excellent: 136, good: 64, fairly good: 10, poor: 5). CFIX attained a high efficacy in the range of 89.4-95.7% in acute pharyngitis, acute tonsillitis, acute bronchitis and acute pneumonia. 5. Safety was monitored in 224 cases and there were only one case of loose stool and another of diarrhea as side effects. There were no abnormal findings in 31 cases of the laboratory test. In conclusion, it was confirmed that CFIX is excellent and safe in the treatment of the respiratory tract infections.
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PMID:[Clinical evaluation of cefixime in pediatric respiratory tract infections]. 204 Nov 46

Branhamella catarrhalis was recovered from one blood culture each from three infants and one neonate admitted to the Trousseau Hospital (Paris) between 1986 and 1988. Clinical features included fever in every case, otitis in three cases, pneumonia in two cases, diarrhea in one case, and enterocolitis in one case. All the strains were beta-lactamase producers. Outcome was favorable in every case. The antimicrobial agent used was erythromycin in one case, amoxicillin in one case, and a third generation cephalosporin in two cases. We reviewed the pediatric literature for reports of Branhamella catarrhalis infections that seem more frequent or better detected than previously. The high prevalence of ampicillin-resistant strains is pointed out.
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PMID:[A review of four cases of Branhamella catarrhalis bacteremia in children]. 210 83

A Pseudomonas aeruginosa (isolate 416) from a patient with pneumonia, was initially susceptible to imipenem (MIC: 2 mg/l) but became resistant to this antibiotic (isolate 470, MIC: 32 mg/l) during imipenem therapy. Treatment failed. No parallel increases in MIC were observed for other antimicrobials tested. Isolates 416 and 470 shared the same pyocin type and serotype, produced small amounts of an inducible beta-lactamase, and had similar lipopolysaccharide compositions. On electrophoresis of outer membrane proteins, the porin F, identified by the monoclonal antibody MA4-4, was expressed similarly by the two isolates but the production of one band (apparent molecular weight: 47,000) was diminished in isolate 470. [14C]-Imipenem labelling of intact cells proceeded more slowly in 470 than in 416, especially when bacterial cells were treated by antibody MA4-4 to block the porin F channel. [14C]-Imipenem labelling of penicillin binding proteins (PBP) showed that the band identified as PBP-4 bound markedly less radioactivity in isolate 470 than in 416. After isolate 470 was passaged several times in antibiotic-free broth, the imipenem MIC was decreased from 32 to 8 mg/l, and the [14C]-imipenem PBP pattern recovered the initial profile as exhibited by isolate 416. Two resistance mechanisms, affecting imipenem electively, could have combined their effect in the post-therapy isolate, altered target protein and reduced permeability.
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PMID:Novel resistance to imipenem associated with an altered PBP-4 in a Pseudomonas aeruginosa clinical isolate. 210 15

During 9 months (from January 1988 to September 1988), we experienced 82 patients (94 episodes) of respiratory infections with Branhamella catarrhalis in 5 different hospitals. There were 11 patients of acute bronchitis, 8 patients of pneumonia, 56 patients of chronic bronchitis (68 episodes), 3 patients of bronchiectasis, 3 patients of bronchial asthma with infection and chronic pulmonary emphysema in one patient. Ten cases of acute bronchitis and 3 cases of pneumonia had a recent history of common cold, with no underlying disease. There were 68 episodes of acute exacerbation of chronic bronchitis, the highest among 94 episodes of all respiratory infection. In chronic bronchitis the single pathogen B. catarrhalis was more than B. catarrhalis associated with other pathogens. H. influenza was associated with B. catarrhalis in in most cases of polymicrobial infection. beta-lactamase producing B. catarrhalis was 71% and oral penicillin was not effective in 8 cases of infection by beta-lactamase producing strains. These results show that B. catarrhalis is very important as a common pathogen of respiratory infection.
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PMID:[Respiratory infections caused by Branhamella catarrhalis in 5 different hospitals]. 212 Apr 97

Branhamella catarrhalis is a nasopharyngeal commensal which is being increasingly recognised as a pathogen, causing mainly infective exacerbations of chronic lung disease. It can also originate serious infections, like septicaemia, in patients with chronic predisposing conditions. During the period from 1979 to 1987, 22,501 respiratory tract samples from children were evaluated. Ninety nine isolated of Branhamella catarrhalis were identified (0.44%). Patients' age extended from 12 days to 9 years, with patients younger than two years representing 73%. Sixty three out of 77 cases investigated (82%) were positive for beta-lactamase. The most frequent finding was the recovery of Branhamella catarrhalis in tracheal aspirates from children with a tracheotomy or prolonged nasotracheal intubation. One of these children had a septic episode during which Branhamella catarrhalis was isolated from blood. Also remarkable is a case of pneumonia in a patient with congenital hypogammaglobulinaemia. Branhamella catarrhalis was also recovered in a wide variety of acute upper and lower respiratory tract infections in children without previous predisposing conditions. It is less clear its pathogenic role in these cases.
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PMID:[Branhamella catarrhalis: its respiratory pathogenicity in childhood]. 212 9

The microbiology of empyema was studied in 72 children and adolescents whose specimens yielded bacterial growth after inoculation for aerobic and anaerobic bacteria. A total of 93 organisms, 60 aerobic or facultative and 33 anaerobic, were isolated. Aerobic bacteria was isolated in 48 (67%) patients, anaerobic bacteria in 17 (24%), and mixed aerobic and anaerobic bacteria in 7 (10%). The predominant aerobic or facultative bacteria were Haemophilus influenzae (15 isolates), Streptococcus pneumoniae (13), and Staphylococcus aureus (10). The predominant anaerobes were Bacteroides sp (15 isolates, including 7 Bacteroides fragilis group and 5 Bacteroides melaninogenicus group), anaerobic cocci (9), and Fusobacterium sp (6). beta-lactamase activity was detected in at least one isolate in 20 (37%) of the 54 tested patients. These included all 8 tested S aureus and 7 B fragilis group, 3 of 10 H influenzae, 2 of 4 B melaninogenicus group, and 1 of 2 Klebsiella pneumoniae. Most cases of S pneumoniae and H influenzae were associated with pneumonia. The recovery of anaerobic bacteria was mostly associated with the concomitant diagnosis of aspiration pneumonia, lung abscess, subdiaphragmatic abscess, and abscesses of dental or oropharyngeal origin. The data highlight the importance of anaerobic bacteria in selected cases of empyema in children and adolescents.
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PMID:Microbiology of empyema in children and adolescents. 218 7

The usefulness of cefteram pivoxil (CFTM-PI) was evaluated in 99 cases with respiratory tract infections: 32 cases with acute bronchitis, 51 cases with infectious exacerbations of chronic respiratory diseases and 16 cases with pneumonia. 1. The clinical efficacies included marked improvement in 27 cases, improvement in 51 cases, moderate improvement in 9 cases, no change in 10 cases and deterioration in 2 cases. The improvement rate was 78.8%. 2. Overall effects were excellent in 12 cases, good in 9 cases and fair in 5 cases. There was no case in which efficacy was not observed and the efficacy rate was 80.8%. 3. Bacteriological effects were classified according to the causative organisms. Eradication rate was 80.8% (21 of 26 strains), indicating an excellent antibacterial action of CFTM-PI. In particular, MICs of cefteram were below 0.05 microgram/ml against all 10 strains of Haemophilus influenzae regardless of beta-lactamase production even with an inoculum of 10(8) or 10(6) cells/ml. 4. Side effects rarely occurred and included a slight gastrointestinal irritation in 4 of 99 cases (4%). Two cases which had abnormal elevations of GOT and GPT had abnormal values prior to administration of CFTM-PI. The elevations were slight and it was possible to continue administration. The GOT and GPT values were improved after the end of administration. The above results indicate the usefulness of CFTM-PI in acute respiratory infections and infectious exacerbation of chronic respiratory diseases.
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PMID:[Clinical evaluation of cefteram pivoxil in respiratory tract infections]. 219 56


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