Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0348321 (Haemophilus)
 15,372 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Azithromycin (AZM), a new oral macrolide antibiotic, in 10% fine granules or 100 mg capsules was given to pediatric patients to treat various infections. The following results were obtained in our studies of AZM for its antibacterial activities against clinical isolates, its pharmacokinetics, its efficacy, and its safety. 1. MICs of AZM, erythromycin (EM) and clarithromycin (CAM) were determined against a total of 57 strains all at 10(6) cfu/ml. Among Gram-positive cocci, MICs of AZM ranged from 0.78 to > 100 micrograms/ml against Staphylococcus aureus (20 strains), from 0.05 to 0.1 microgram/ml against Streptococcus pyogenes (11 strains), and from 0.0125 to 3.13 micrograms/ml against Streptococcus pneumoniae (10 strains). These MICs were similar to those of the other macrolides. Among Gram-negative bacilli, MICs of AZM were 0.05 micrograms/ml against Moraxella subgenus Branhamella catarrhalis (1 strain), from 0.78 to 3.13 micrograms/ml against Haemophilus influenzae (9 strains), 0.78 micrograms/ml against Haemophilus parainfluenzae (1 strain) and 6.25 micrograms/ml against salmonella sp. (1 strain). These values were similar to or lower than those of the other macrolides. Against Mycoplasma pneumoniae, MICs of AZM were < or = 0.0008 micrograms/ml in three strains. One strain of M. pneumoniae showed tolerance to AZM at MIC 25 micrograms/ml. The other agents exhibited higher MIC than AZM against this organism. 2. Plasma samples were collected from five patients receiving fine granules and four patients receiving capsules for drug level determination. The patients received AZM at 10.0 approximately 16.3 mg/kg body weight once daily for 3 days. Drug concentrations in plasma at two hours after Day 3 dosing were in a range between 0.02 and 0.19 micrograms/ml for fine granules and were in a range between 0.11 and 0.42 micrograms/ml for capsules. 3. Urine samples were collected from four patients receiving fine granules and four patients receiving capsules. Drug levels were determined to be 3 micrograms/ml at post-treatment 48 hours for fine granules and post-treatment 72 hours for capsules. Urinary excretion rates of AZM in three patients on capsules lied in a range between 4.69 and 10.17%. 4. Effectiveness of AZM in fine granules was evaluated in 128 patients having a total of 19 different infections. AZM was rated "excellent" in 51 patients, "good" in 63, "fair" in 8, "poor" in 6, resulting in an efficacy rate of 89.1%. Effectiveness of AZM in capsular form was evaluated in 23 patients with five different infections. AZM was found "excellent" in 13 patients and "good" in 10, resulting in an efficacy rate of 100%. 5. AZM in fine granules eradicated 45 strains of 54 in 8 different bacteria. AZM in capsules eradicated 9 strains of 10 strains in 6 different bacteria. 6. As for adverse reactions, one patient complained of eruption, one vomiting, one loose stool, five diarrhea, when administered with fine granular form of AZM. One patient on AZM capsules experienced urticaria and vomiting. 7. As for abnormal laboratory changes, three patients were found with decreased WBC, seven with increased eosinophil, two with increased GOT and GPT, one with increased GPT. They were all on fine granular form of AZM. As far as abnormalities found in patients administered with AZM in capsular form, two showed decreased WBC, one decreased WBC along with increased eosinophil, and three increased eosinophil.
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PMID:[Clinical study on azithromycin in 10% fine granules and 100mg capsules in the field of pediatrics]. 963 60

Pharmacokinetic, bacteriological and clinical studies were performed in pediatrics on tazobactam/piperacillin (TAZ/PIPC), a combined drug of a new beta-lactamase inhibitor tazobactam and piperacillin at a ratio of 1:4. 1. Serum levels and urinary excretions of TAZ, PIPC and desethyl piperacillin (DEt-PIPC), a metabolite of PIPC, after one shot intravenous administration of 50 mg/kg of TAZ/PIPC to two children (6-7 years old) were investigated. The serum TAZ level at 0.08 hour was 50.8-51.0 micrograms/ml after administration. Then TAZ concentrations gradually decreased with half-lives of 0.38-0.45 hour, and reached 1.0-1.4 micrograms/ml after 2 hours and was not detected after 3 hours and 6 hours. Serum PIPC levels at 0.08 hour was 167.0-231.0 micrograms/ml after administration. Then PIPC concentrations gradually decreased with half-lives of 0.41-0.55 hour, and reached 1.2-2.4 micrograms/ml after 3 hours and was not detected after 6 hours. DEt-PIPC was detected slightly in serum. A ratio of TAZ to PIPC was about 1 to 4 in serum at each time. Urinary recovery rates of TAZ in the first 6 hours after administration of TAZ/PIPC were 33.5-90.1% and those of PIPC were 41.9-77.8% and those of DEt-PIPC were 1.5-2.8%. 2. TAZ/PIPC was administered to 27 pediatric patients (their ages ranged between 2 months and 11 years old) with various infections, and clinical and bacteriological effects and adverse reactions were investigated. Single doses were 26.2-55.6 mg/kg, frequencies of administration were 3-4 times a day, and durations of administration were 3 1/3-7 1/3 days, and total dosages were 4.5-33.75 g. Clinical effects were evaluable in 26 cases. Responses were rated as "good" in acute purulent tonsillitis 1 case and acute purulent otitis media 1 case, as "excellent" in acute sinusitis 1 case, as "excellent" in 2 and "good" in 1 out of 3 cases of acute bronchitis, as "excellent" in 13 and "good" 2 out of 15 cases of acute pneumonia, as "excellent" in acute urinary tract infection 2 cases and as "excellent" in acute enteritis in 1 case, acute appendicitis in 1 case and lymphadentis in 1 case. In all cases, the results were rated as "good" or "excellent". Antimicrobial effects against a total of 10 strains identified or assumed to be pathogenic bacteria were evaluated. The 10 strains of bacteria included 4 strains of Streptococcus pneumoniae, 3 strains of Haemophilus influenzae (2 strains beta-lactamase producing), 2 strains of beta-lactamase producing Moraxella catarrhalis, 1 strain of beta-lactamase producing Morganella morganii. All the bacteria listed here were judged to have been eradicated. Adverse reaction was observed in 1 case with mild diarrhea. As abnormal changes in laboratory data, leucocytopenia in 1 case, elevation of GOT. GPT in 2 cases and eosinophilia in 1 case were observed. On the basis of the findings, TAZ/PIPC was considered to be effective and safe in the treatment of pediatric infections.
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PMID:[Pharmacokinetic, bacteriological and clinical evaluation of tazobactam/piperacillin in pediatrics]. 969 67

A drug susceptibility test of the combination drug TAZ/PIPC, which consists of a newly developed beta-lactamase inhibitor, tazobactam (TAZ), and one of penicillin antibiotics, piperacillin (PIPC), with combination ratio of 1:4 in potency, was conducted with stock strains and clinical isolates. The clinical efficacy and safety of its injection was also evaluated in children with a variety of infectious diseases. The results were as follows: 1. In susceptibility test, 114 strains from 4 species of stock strains were treated with 8 drugs, that is, TAZ/PIPC, PIPC, penicillin G (PCG), ampicillin (ABPC), cefotiam (CTM), cefotaxime (CTX), ceftazidime (CAZ), and sulbactam/cefoperazone (SBT/CPZ). Of three clinically isolated species from patients, Staphylococcus aureus (S. aureus) was treated with TAZ/PIPC, PIPC, methicillin (DMPPC), CTM, CTX, and SBT/CPZ, and the others were treated with the same drugs except for DMPPC. The MICs were measured for these bacterial strains inoculated at the concentration of 10(6) CFU/ml. The MIC90 values of TAZ/PIPC against 45 strains of Streptococcus pyogenes (S. pyogenes), one of the stock cultures of Gram-positive cocci, were 0.05 microgram/ml and similar to those of PIPC, CTM, CAZ, and SBT/CPZ. The MICs of TAZ/PIPC for 28 strains of Streptococcus agalactiae (S. agalactiae) were 0.39 microgram/ml and similar to those of PIPC, CTM, CAZ, and SBT/CPZ. As for Gram-negative bacilli, the MIC90 of TAZ/PIPC against 10 strains of Bordetella pertussis (B. pertussis) were 0.10 microgram/ml and similar to those of PIPC. The MIC90 of TAZ/PIPC against 31 strains of Haemophilus influenzae (H. influenzae) were 0.05 microgram/ml and similar to those of PIPC, CTX, and SBT/CPZ. Regarding Gram-positive cocci isolated from patients received this combination drug, the MIC90 of TAZ/PIPC against 2 strains of S. aureus, a non beta-lactamase producing strain and a low-beta-lactamase producing strain, were 0.78 microgram/ml and 3.1 micrograms/ml, respectively; the former value was similar to those of PIPC, DMPPC, CTM, and CTX, and the latter was similar to those of PIPC, DMPPC, CTX, and SBT/CPZ. Of 4 strains of Streptococcus pneumoniae, 2 strains were inhibited at 0.05 microgram/ml, and the others at 1.56 micrograms/ml; both values were similar to those of PIPC, SBT/CPZ. As for Gram-negative bacilli, 6 of 7 strains of H. influenzae did not produce beta-lactamase and 1 strain was a high producer. The MICs of TAZ/PIPC against beta-lactamase nonproducing strains were < or = 0.025 microgram/ml in 5 strains and 0.39 microgram/ml in 1 strain, and the values were similar to those of PIPC and SBT/CPZ. While the MIC of TAZ/PIPC against the high beta-lactamase producing strain was 0.78 microgram/ml; similar to that of SBT/CPZ and smaller than that of PIPC. 2. The results of clinical effects on 7 diseases in 33 cases were as follows: TAZ/PIPC was clinically judged "excellent" in 17 (51.5%); good in 14 (42.4%); fair in 2 (6.1%). No case with no response was seen in this study, and the total efficacy rate of "excellent" and "good" was 93.9%. 3. Bacteriological effects were evaluated in 17 strains of 4 species, and all of them were eradicated. 4. Adverse reactions were judged in 35, which consisted of 33 in which the clinical effects were evaluated and 2 dropped from this study. Of these cases, diarrhea was observed in 4 (11.4%). 5. Laboratory tests revealed an increase in platelets in 1 of 32 cases (3.1%), and eosinophilia in 2 of 29 cases (6.9%). Biochemical profile showed an increase in GPT alone and abnormal increases in both GOT and GPT in 1 each out of 21 cases.
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PMID:[Basic and clinical studies on tazobactam/piperacillin in pediatric field]. 975 31

A retrospective clinical study of 64 cases with bacterial meningitis beyond the neonatal period in the department of pediatrics of St. Mary's Hospital (1985-1995) was conducted. Haemophilus influenzae (H. influenzae) (28 cases, 43.8%) and Streptococcus pneumoniae (S. pneumoniae) (23 cases, 35.9%) were common pathogens. The prognosis was classified into three groups; normal (42 cases, 65.6%), neurological sequelae (17 cases, 26.6%) and death (5 cases, 7.8%). We analyzed the risk factors associated with their outcome. The body temperature at admission, platelet count, CSF examination (WBC, glucose, GOT, GPT) were prognostic factors. The prognosis of bacterial meningitis caused by S. pneumoniae was worse than those due to H. influenzae (p = 0.0347).
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PMID:[Risk factors for clinical prognosis in bacterial meningitis beyond the neonatal period]. 978 May 79


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