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Biomedical subjects

K Kuno

Publications and source records attributed to K Kuno.

At least 181 records · Page 10Linked to original sources
PubMed1989

[Laboratory and clinical studies on cefteram pivoxil in the field of pediatrics].

Laboratory and clinical studies on cefteram pivoxil(cefteram) a new cephem antibiotic, were carried out in the field of pediatrics. The results obtained are summarized as follows: 1. Serum concentrations, urinary concentrations and urinary recovery rates of cefteram (CFTM) were determined upon oral administration after meal of cefteram pivoxil (CFTM-PI) at doses of 3 mg/kg granules in 2 cases and 6 mg/kg granules in 2. Peak serum levels of CFTM were obtained at 3 hours in 2 cases and 4 hours in 2 cases after administration of the drug with a range of 0.74-2.2 micrograms/ml with half-lives of 0.77-3.62 hours. Urinary recovery rates in 8 hours after administration ranged from 9.6-23.0%. 2. MICs of CFTM against 22 clinical isolates (Streptococcus pyogenes 4 strains, Streptococcus pneumoniae 4, Staphylococcus aureus 2, Branhamella catarrhalis 1, Haemophilus influenzae 8, Haemophilus parainfluenzae 1, and Escherichia coli 2) were compared with those of cefaclor (CCL), cephalexin (CEX), and ampicillin (ABPC). The antibacterial activity of CFTM was superior to those of CCL and CEX, and was superior against Gram-negative rods and equal against Gram-positive cocci to those of ABPC. 3. Twenty-six pediatric patients with acute infectious diseases (scarlet fever 3 cases, tonsillitis 7, epiglottitis 1, bronchitis 5, pneumonia 5, urinary tract infection 3, cervical lymphadenitis 2) were treated with CFTM-PI at daily doses of 9.3-15.3 mg/kg t.i.d. as a rule. The efficacy rates were 100% clinically and 70% bacteriologically. 4. Side effects or abnormal laboratory test values were not observed except for an increased platelet count in 1 case.

Absorption↗
PubMed1988

Development of the monosynaptic reflex pathway in the human spinal cord.

Development of the monosynaptic reflex pathway of the spinal cord was investigated in 96 neurologically normal infants with ages ranging from 25 weeks in postconceptional age (PCA) to 24 months after full-term delivery (PDA) by examining H-reflexes from the triceps surae and hypothenar muscles in terms of their incidence, latency and maximal size in reference to the maximal M-wave. The triceps H-reflex was evoked in all cases, and the latency was longest (26 ms) in the youngest case of 25 weeks (PCA). It gradually shortened until full-term gestation, reaching the shortest value of 17 ms (mean). The H-reflex size initially increased until full-term gestation, reaching the maximum value of 70% and then reducing gradually to the plateau level of about 30% at 12 months (PDA). The hypothenar H-reflex could not be elicited until 32 weeks (PCA). The time course of changes in its latency and size was similar to those of the triceps H-reflex, except that it could not be elicited after 12 months (PDA). Thus, the monosynaptic reflex pathway is already functioning at the age of 25 weeks (PCA) in man. The significance of the systematic change in latency and excitability of the H-reflex with age is discussed.

Aging↗
PubMed1988

[Laboratory and clinical studies of rokitamycin dry syrup in the field of pediatrics].

Laboratory and clinical studies on rokitamycin (RKM) dry syrup, a new macrolide antibiotic, were carried out in the field of pediatrics. The results are summarized as follows. 1. Plasma concentrations and urinary recovery rates after oral administration on fasting of RKM dry syrup at doses of 10 mg/kg and 20 mg/kg to 2 and 1 cases, respectively, were determined. Peak plasma levels were obtained in 30 minutes after administration of both dosages with half-lives of 1.5 to 2.2 hours. A clear-cut dose response was observed. Urinary recovery rates in the first 6 hours after administration ranged from 1.75 to 2.26%. 2. The MICs of RKM against 80 clinical isolates (Streptococcus pyogenes 9, Streptococcus pneumoniae 14, Branhamella catarrhalis 4, Haemophilus influenzae 27, Haemophilus parainfluenzae 9, Haemophilus haemolyticus 2, Haemophilus parahaemolyticus 14 and Campylobacter jejuni 1) were compared with MICs of midecamycin acetate (MOM), josamycin (JM) and erythromycin (EM). The antibacterial activity of RKM was superior to those of MOM and JM and slightly inferior to that of EM. 3. Twenty-eight pediatric patients with acute infectious diseases (acute tonsillitis 4, streptococcal infection 4, acute bronchitis 9, pneumonia 4, mycoplasmal pneumonia 2 and Campylobacter enteritis 5) were treated with RKM dry syrup at a daily dose of 12-42.9 mg/kg t.i.d. as a rule. Efficacy rates were 92.9% clinically and 58.6% bacteriologically. 4. No adverse reactions were observed. Abnormal laboratory findings were mild; thrombocytosis in 2 and eosinophilia in 1. 5. The taste and the odor of RKM dry syrup preparation were sufficiently tolerable for the pediatric patients to accept it.

Administration, Oral↗
PubMed1988

[Pharmacokinetic, bacteriological and clinical studies of sultamicillin fine granule in pediatric field].

Pharmacokinetic, bacteriological and clinical studies on sultamicillin (SBTPC) fine granule were carried out in the field of pediatrics. The results obtained are summarized as follows. 1. Antibacterial activities of SBTPC against clinically isolated strains of Haemophilus influenzae, Haemophilus parainfluenzae, Streptococcus pneumoniae, Streptococcus pyogenes, Streptococcus agalactiae, Staphylococcus aureus, Branhamella catarrhalis, and Escherichia coli were compared with those of ampicillin (ABPC). SBTPC was superior to ABPC especially against beta-lactamase producing H. influenzae, E. coli, S. aureus, and B. catarrhalis. 2. Serum concentrations and urinary excretion rates of sulbactam (SBT) and ABPC after administration of SBTPC fine granule at a dose level of 10 mg/kg in 2 cases were determined. Mean half-lives of SBT and ABPC in the serum following oral administration were about 1.33 and 1.61 hours respectively. Mean urinary recovery rates of SBT and ABPC in 6 hours after oral administration at a dose of 10 mg/kg were 58.7% and 49.6% respectively. 3. SBTPC fine granule was administered to 20 pediatric patients with various bacterial infections (pneumonia 8 cases, bronchitis 2, pharyngitis 2, tonsillitis 4, subcutaneous abscess 1 and urinary tract infection 3). The overall clinical efficacy rate was 100% and the overall bacteriological eradication rate was 75%. 4. No adverse reactions were observed except 1 case of loose stool. No abnormal laboratory test values were observed. These results indicate the usefulness of SBTPC fine granule in the treatment of bacterial infections in children.

Adolescent↗
PubMed1987

Fz theta/alpha bursts: a transient EEG pattern in healthy newborns.

We named transient activity recorded from midline frontal area 'Fz theta/alpha bursts' and investigated their characteristics and clinical significance. Polygraphic examinations were carried out on a total of 155 infants from 35 to 46 weeks of postconceptional age. Fz theta/alpha bursts were recorded in 40 (36%) of 111 infants without neurological problems. Especially these bursts were found in 33 (55%) of 60 infants at 38-42 weeks of postconceptional age. They occurred in pre-term as well as in full-term newborns. Three hundred and sixty-two Fz theta/alpha bursts were recorded from 40 infants without neurological problems. Ninety-one percent of them were found in quiet sleep, and others in indeterminate sleep. None of them were recorded in active sleep. Fz theta/alpha bursts did not occur synchronously with frontal or temporal sharp transients. The incidence of Fz theta/alpha bursts in infants with abnormal neurological signs was lower than in control infants (4/44 vs. 37/73; P less than 0.01). The bursts were not detected in EEGs with moderately or more severely depressed background. One hundred and thirty-five infants were followed up for more than 12 months. Fz theta/alpha bursts were recorded in 38 (35%) of 109 infants with normal outcome, and in only 1 (4%) of 26 infants with abnormal outcome. Our results indicated that Fz theta/alpha bursts were of normal EEG components without pathological significance.

Alpha Rhythm↗
PubMed1987

Noninvasive method to assess cor pulmonale in patients with chronic obstructive pulmonary disease.

In our study of 15 patients with chronic obstructive pulmonary disease, we performed myocardial perfusion single-photon-emission computerized tomography (SPECT) with thallium-201 to quantitatively assess right ventricular hypertrophy. On the SPECT images, we determined the ratio of activity in the right-to-left ventricular wall as the thallium score. Right ventricular ejection fraction (RVEF) was measured by multigated equilibrium radionuclide ventriculography with krypton-81m. Both the thallium scores and RVEF values correlated well with pulmonary arterial pressure (r = 0.65 and r = -0.86, respectively) and permitted the structural and functional assessment of cor pulmonale. When the patients were classified according to the thallium scores and RVEF values, those who had both a high thallium score and reduced RVEF had a significantly high pulmonary arterial pressure and vice versa. The combined evaluation of the thallium score and RVEF enabled accurate noninvasive assessment of cor pulmonale.

Adult↗
PubMed1987

[Bacteriological and clinical studies of flomoxef in the field of pediatrics].

Bacteriological and clinical studies with flomoxef (FMOX, 6315-S), a new oxacephem antibiotic, were carried out in the field of pediatrics and the results obtained are summarized as follows: 1. The antimicrobial activity of FMOX against clinically isolated organisms was determined. FMOX had a good antimicrobial activity against Streptococcus pneumoniae, Escherichia coli, Haemophilus influenzae and especially against Staphylococcus aureus (including methicillin resistant S. aureus). 2. Mean serum concentrations of FMOX following intravenous bolus injection of 20 and 40 mg/kg (in 7 and 4 cases, respectively) were 35.3 and 77.7 micrograms/ml at 15 minutes after administration with mean serum half-lives (T1/2) of 0.75 and 0.95 hours and mean urinary recovery rates up to 6 hours after administration were 71.9 and 65.1%, respectively. 3. Twenty-five pediatric patients (19 cases of pneumonia, 1 case of pyothorax and 5 cases of urinary tract infection) were treated with FMOX in doses ranging from 50 to 138 mg/kg divided into 3 or 4 times a day. The rate of clinical effectiveness was 100% and the bacterial elimination rate was 90.6%. 4. No adverse reactions were observed. Abnormal laboratory findings were eosinophilia in 1, thrombocytosis in 2 and slight elevations of GOT and GPT in 3 patients. These results indicate the usefulness and the safety of FMOX in the treatment of bacterial infections in the pediatric field.

Age Factors↗
PubMed1987

[Fundamental and clinical studies on cefuzonam in the field of pediatrics].

Fundamental and clinical studies on cefuzonam (L-105, CZON), a newly semisynthesized cephem antibiotic, were carried out in the field of pediatrics and the following results were obtained. Antibacterial activities of CZON against clinically isolated strains of Staphylococcus aureus, S. epidermidis, Streptococcus pneumoniae, S. pyogenes, Escherichia coli, Klebsiella pneumoniae, Haemophilus parainfluenzae and H. influenzae were compared with those of cefmenoxime (CMX), latamoxef (LMOX), cefoperazone (CPZ), cefmetazole (CMZ), cefotiam (CTM) and cefazolin (CEZ). CZON was nearly as active as CEZ against S. aureus and S. epidermidis and superior to other antibiotics against other Gram-positive cocci. Against Gram-negative rods, CZON was as active as CMX and superior to other 5 antibiotics compared. Serum concentrations and urinary excretion rates after intravenous bolus injection of CZON at doses of 10 mg/kg, 20 mg/kg and 40 mg/kg for 5 minutes in 1, 5 and 4 cases, respectively, were determined. Mean serum concentrations of CZON at these dose levels were 11.0, 43.8 and 111.5 micrograms/ml at 15 minutes, 2.4, 10.3 and 30.3 micrograms/ml at 1 hour and 0.17, 0.72 and 1.28 micrograms/ml at 4 hours, with serum half-lives of 1.79, 0.88 and 1.19 hours, respectively. Mean cumulative urinary excretion rates within 6 hours after administration were 47.9, 56.3 and 40.3%, respectively. Thirty-four pediatric patients with various bacterial infections (tonsillitis 2, acute bronchitis 1, pneumonia 14, pyothorax 1, sepsis 1, suppurative lymphadenitis 1, UTI 13 and enteritis 1) were treated with CZON at a daily dose of 40-94 mg/kg t.i.d. or q.i.d.. The overall clinical efficacy rate was 94.1%. No adverse reactions were observed except 2 cases with mild diarrhea. Abnormal laboratory findings were also mild; slight elevation of GOT and GPT in 2, eosinophilia in 1 and thrombocytosis in 1. These results clearly indicate the usefulness of CZON in the treatment of bacterial infections in children.

Age Factors↗
PubMed1986

[Fundamental and clinical studies on imipenem/cilastatin sodium in the field of pediatrics].

Fundamental and clinical studies on imipenem/cilastatin sodium (MK-0787/MK-0791) were performed in pediatric patients with infections. Results obtained were summarized below. The mean plasma half-life of MK-0787 was 0.84 hour with a dosage of 10 mg/kg and 0.90 hour with a dosage of 20 mg/kg. Mean plasma half-lives of MK-0791 were 0.40 hour and 0.71 hour for dosages of 10 mg/kg and 20 mg/kg, respectively. Urinary recovery of both MK-0787 and MK-0791 was high. The antibacterial activity of MK-0787 against clinically isolated organisms was determined. The MK-0787 was bactericidal against a broad spectrum of both Gram-positive and Gram-negative pathogens. The MK-0787/MK-0791 was administered to 32 pediatric patients with various infections. The overall clinical efficacy rate was 96.9%. Side effects observed were loose stools in one patient, diarrhea in another and slight elevations of platelet and direct bilirubin, and eosinophilia were observed in 3 patients, respectively.

Bacteria↗
PubMed1986

[A comparative, well-controlled study of ceftizoxime suppository against ceftizoxime intravenous injection in infantile acute pneumonia].

We have attempted to clinically define the therapeutic usefulness of ceftizoxime suppository (CZX-S) in children with bacterial pneumonia, in a randomized trial. Intravenous injection of ceftizoxime (CZX) was used as the control. The results are summarized below. Subjects were inpatients with bacterial pneumonia, ranging in age from 9 months to 7 years and 10 months. As a rule, the daily dose was either four 250 mg (in potency) suppositories given at 6-hour intervals or 60 mg/kg body weight intravenous CZX (control) given in 4 injections at 6-hour intervals over a period of 7 days. The number of children in the study was 67. These children were divided into 2 dosage groups (suppository, 35; injection, 32) with matching pretreatment background factors. The severity of the target disease in the majority of the children was "moderate". The rate of therapeutic effectiveness was 97.1% for the suppository and 93.8% for the injection, and did not differ significantly between the 2 groups. Rates of efficacy by severity, presence or absence of underlying diseases, daily dose and/or complications were high without exception, and did not differ significantly between the 2 groups. Eradication rates for causative microorganisms, as studied in 16 children of each group, were both 93.8%. The 2 most frequently isolated causative organisms were Haemophilus influenzae and Streptococcus pneumoniae. Side effects were examined for 36 children of each group. The frequency of side effects did not differ significantly between the suppository group (2 with diarrhea and 1 with abdominal pain) and the injection group (1 with urticaria), and 8.3% and 2.8%, respectively. The frequency of abnormal laboratory test findings differed significantly (P less than 0.01) with respect to eosinophilia which occurred in 7 (20.6%) of the injected subjects but was not encountered in the subjects treated with suppositories. Other abnormal laboratory findings included thrombocytosis in 3 (14.3%) of the injection group and increased GOT in 1 (3.2%) of the suppository group. The suppository formulation of CZX appears to be a highly useful substitute for the injectable form, and should find a special use in children whose treatment with injections experiences some difficulty.

Abdomen↗