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Biomedical subjects

H Kiuchi

Publications and source records attributed to H Kiuchi.

At least 37 records · Page 2Linked to original sources

[A case of allergic bronchopulmonary candidiasis treated with amphotericin B inhalation].

A 77-year-old man underwent emergency admission for nocturnal asthmatic attack. Although his asthmatic attack improved within a few days with treatment including systemic corticosteroid, bilateral recurrent infiltrative shadows developed in his chest roentgenogram in association with a further exacerbation of dyspnea. Various antibiotic agents were given; however, the pulmonary infiltration did not improve. He was transferred to our department with the diagnosis of intractable pneumonia. C. albicans was detected in the sputum, and both IgE antibody and precipitating antibody specific for C. albicans were positive. Immediate cutaneous reactivity to C. albicans was positive even with a million-fold dilution of antigen extract C. albicans was also detected in bronchoalveolar lavage fluid. A diagnosis of allergic bronchopulmonary candidiasis was made. Chest roentgenographic findings as well as clinical symptoms improved with inhalation of 50 mg of amphotericin B.

Administration, Inhalation↗

Identification and characterization of a plaque forming avian rotavirus isolated from a wild bird in Japan.

From fresh faeces of a wild bird (Melanitta fusca), a virus that showed granular cytopathic effects (CPE) on chicken kidney cell (CKC) cultures was isolated. By indirect immunofluorescence analyses (IFA), this isolate reacted with an antiserum against a bovine rotavirus. The isolate produced clear plaques on CKC by conventional techniques, without trypsin. Three virus plaques were selected by plaque size (small, medium, and large) and cloned by three successive plaque cloning. In the SDS-PAGE analyses, dsRNA bands showed a typical profile of avian rotavirus and quite different from that of avian reovirus. With dsRNA patterns, IFA results, CPE, and a morphological property, the clones were identified as avian rotaviruses of group A rotavirus. The clones killed chicken embryos, when they were inoculated to yolk sac.

Animals↗

[The influence of repirinast, an anti-allergic drug, on theophylline pharmacokinetics in patients with bronchial asthma].

In order to clarify whether repirinast, an inhibitor of chemical mediator release, could influence the pharmacokinetics of theophylline, a loading test using intravenous injection of aminophylline was performed in 10 subjects with bronchial asthma before and after treatment with 300 mg/day of repirinast. There was no significant difference in theophylline half-life before treatment (7.25 +/- 2.43 hr) and after treatment (7.82 +/- 3.35 hr). There was no significant difference in theophylline clearance before treatment (0.047 +/- 0.018 L/kg/hr) and after treatment (0.047 +/- 0.020 L/kg/hr). These results demonstrated that repirinast does not modify theophylline pharmacokinetics significantly.

Adult↗

[Bronchial lavage in the treatment of status asthmaticus].

Bronchial lavage was performed in 10 cases with status asthmaticus who were mechanically ventilated. The mean value of PaCO2 was 64.4 +/- 17.4 Torr before bronchial lavage, and it significantly decreased to 51.9 +/- 11.0 Torr after lavage. In 7 out the 10 cases, bronchial lavage was judged to be effective from the clinical point of view. In 5 cases with values of PaCO2 of over 55 Torr before lavage, massive mucus plugs were recovered. Bronchial lavage was judged to be effective in all of them, whereas three out of the another five cases whose values of PaCO2 were less than 55 Torr showed exacerbation of hypercapnia, and the state of asthma worsened and/or continued for a longer period. The ratio of PaO2/FiO2 did not improve even in effective cases. These results indicated that bronchial lavage is a useful tool to improve the hypercapnic state in patient with status asthmaticus being mechanically ventilated, if the value of PaCO2 is over 55 Torr.

Adult↗

[Combination chemotherapy with bronchial arterial infusion (BAI) and systemic chemotherapy in advanced non-small cell lung cancer].

Five patients of advanced non-small cell lung cancer with atelectasis and/or poor performance status were treated with combination MVP therapy consisting of bronchial arterial infusion (BAI) using cisplatin (50 mg) and simultaneous systemic MVP therapy. The tumor size reduced more than 50% in three patients, and less than 25% in one patient. In another patient the tumor size was not measurable. Four of five patients showed disappearance of atelectasis, and three of four patients showed improvement of performance status. Average time taken was 13 and 17 days, respectively. We expect that combination MVP therapy has beneficial effects not only for relieving local symptoms and improving performance status within shorter period, but also achieving a better prognosis.

Aged↗

[A cured case of adult respiratory distress syndrome caused by septicemia of Staphylococcus aureus].

A 33-year-old woman was admitted as an emergency case because of shock condition after delivery. Physical examination revealed fever, cyanosis and coarse crackles throughout the entire chest. Laboratory data showed leukocytosis and increase of CRP value. Adult respiratory distress syndrome (ARDS) was diagnosed based on progressive severe hypoxemia and bilateral diffuse alveolar shadows on chest X-ray film. The cause of ARDS was considered to be septicemia as staphylococcus aureus was cultured from lochia. The patient was intubated, then artificially ventilated employing PEEP. Chemotherapy using three different kinds of antibiotics was started, combined with the administration of corticosteroid and a protease inhibitor, Urinastatin. The patient finally recovered completely.

Adult↗

Peplomycin sulfate and pulmonary fibrosis: hydroxyproline, uronic acid, proline hydroxylase and glucosamine 6-phosphate synthetase in lungs of hamsters treated with peplomycin.

Effect of peplomycin sulfate (PLM) on pulmonary fibrosis was examined. Hydroxyproline, uronic acid, proline hydroxylase (EC 1.14.11.2) and glucosamine 6-phosphate synthetase (EC 2.6.1.16) in lungs of hamsters treated with PLM were studied and compared with those of hamsters treated with bleomycin (BLM). PLM, when administered intraperitoneally, one injection daily for 10 consecutive days, at either a high- (5 mg/kg) or low- (2.8 mg/kg) dosage-level, caused no significant increase of lung hydroxyproline and uronic acid as compared with controls. BLM on the other hand effected a significant increase in lung hydroxyproline on the high-dosage level (5 mg/kg) but not on the low-dosage level (2.8 mg/kg). In contrast, when administering PLM intratracheally, the concentrations of hydroxyproline in lungs increased 20% over the control levels. A transient increase of proline hydroxylase and glucosamine 6-phosphate synthetase also occurred shortly after the instillation. These increases were also observed in the corresponding groups treated with BLM, which confirmed the previous observations by other investigators. However, the magnitude of the increase was relatively lower in those values of PLM as compared with those of BLM. These data suggested that (1) PLM, when administered with multiple dosages intraperitoneally, showed no significant effect on the elevation of lung hydroxyproline; (2) PLM, when administered with a dose intratracheally, induced pulmonary fibrosis similar to that caused by BLM. However, the hydroxyproline accumulation in lungs of PLM-treated hamsters was less than in those of the BLM-treated; (3) The fibrotic effect on the lungs caused by either PLM or BLM was probably attributed to acceleration of the syntheses of collagen and acidic glycosaminoglycans.

Animals↗

[Clinical studies on pivmecillinam in urinary tract infections (author's transl)].

Pivmecillinam (PMPC), semisynthetic penicillin for oral use, was studied clinically and following results were obtained. 1) Twenty-eight patients with acute simple cystitis treated with the drug 200 mg/day for 4 days, clinical results were excellent in 23 cases and moderate in 5 cases. Six patients with chronic simple cystitis treated with the drug 400 mg/day for 7 days, clinical results were excellent in 4 cases, moderate in 1 case and poor in 1 case. Eight patients with complicated urinary tract infections treated with the drug 400 mg/day for 7 days, clinical results were excellent in 2 cases, moderate in 2 cases and poor in 4 cases. Overall effectiveness amounted to 88.1%. 2) Pivmecillinam was clinically effective in patients infected by Gram-negative bacteria except Pseudomonas aeruginosa. 3) No side effects were observed in all cases. The effectiveness of PMPC for acute simple cystitis was compared with that of talampicillin (TAPC), ampicillin (ABPC), amoxicillin (AMPC) and pivampicillin (PVPC) reported previously and PMPC was assessed as the most useful agent in these. Then, pivmecillinam should be chosen firstly as a chemotherapeutic agent for acute simple cystitis.

Adult↗