Search PubMed⌕ Search

Biomedical subjects

K Deguchi

Publications and source records attributed to K Deguchi.

At least 325 records · Page 18Linked to original sources
PubMed1983

Coagulant and fibrinolytic activities in the leukemic cell lysates.

We attempted to examine procoagulant activity (PCA), X activator activity (XAA) and plasminogen activator activity (PlgAA) of various leukemic cell lysates: 17 acute myelocytic leukemias (AML), 4 acute promyelocytic leukemias (APL), 9 acute myelomonocytic leukemias (AMMoL), 7 chronic myelocytic leukemias (CML), 4 CML with blastic crisis, 7 T cell acute lymphocytic leukemias (ALL), 8 adult T cell leukemias (ATL), 8 null cell ALL, 6 B cell lymphocytic leukemias. Among those 70 cases, 4 APL, 4 AMMoL and 5 AML were associated with overt disseminated intravascular coagulation (DIC) and 5 T cell ALL, 7 ATL and 2 null cell ALL were associated with hypofibrinogenemia not adapted for DIC. The sample used was the lysate of 10(7) cells. PCA was measured by recalcification time of normal plasma with the cell lysate, XAA and PlgAA was measured by chromogenic substrate. APL and AML, especially those associated with overt DIC, had high PCA, and lymphocytic leukemia generally had low PCA in comparison with normal controls. Total PCA (PCA multiplied by cell count/microliter) was remarkably increased in DIC and mildly increased in ALL with hypofibrinogenemia. The change in XAA and total XAA (XAA multiplied by cell count/microliter) was not remarkable in any leukemia except for T cell ALL and null cell ALL with hypofibrinogenemia. PlgAA was high in lymphocytic leukemias with hypofibrinogenemia, APL and AMMoL with DIC. Total PlgAA (PlgAA multiplied by cell count/microliter) was high especially in T cell ALL and null cell ALL with hypofibrinogenemia. Thus it is probable that PCA is the most important factor causing DIC in myelogenous leukemia and that PlgAA is the most important factor causing hypofibrinogenemia in lymphocytic leukemia. The measurement of these activities in the leukemic cells is valuable in prediction and prevention of the hemostatic disorder in leukemia.

Cysteine Endopeptidases↗
PubMed1983

Bacteriology of acute otitis media in Japan and chemotherapy, with special reference to Haemophilus influenzae.

Middle ear effusions from 574 patients with acute otitis media (AOM) were sampled and cultured in metropolitan Tokyo. Sampling was done by myringectomy and from otorrhea after the occurrence of spontaneous perforation. Streptococcus pneumoniae and Haemophilus influenzae were isolated more widely in 'fresh' (myringotomized) cases than in 'old' cases. The freshness of cases, and the sampling and culture techniques appear to account for the difference in reports concerning causative pathogens of AOM from Japan on one hand and the U.S.A. and Scandanavia on the other. The relatively high detection rate of H. influenzae indicates its importance in all age groups. H. influenzae was isolated from a second group of 50 patients, and MIC values were determined. ABPC proved to be the most effective chemotherapy, except in cases (10%) of beta-lactamase producing H. influenzae. The correlation between the main causative pathogens of AOM and penicillin concentrations found in middle ear effusions was also investigated. The oral administration of 10-12 mg/kg of ABPC surpassed the 85% MIC level against H. influenzae.

Adolescent↗
PubMed1983

Release of lipoteichoic acid from Staphylococcus aureus by treatment with cefmetazole and other beta-lactam antibiotics.

The effect of cefmetazole on the growth together with the release of cellular lipoteichoic acid from cefazolin-resistant strains of Staphylococcus aureus was compared with that of cefazolin, cefotiam, cefoxitin and cefuroxime. Bacteriolytic actions were measured by turbidity and bactericidal actions were followed by viable cell count. Release of cellular lipoteichoic acid was measured by the radioactivity in the supernatant of the cultures. Cefmetazole exerted more potent effects on the bacterial growth and induced more marked release of cellular lipoteichoic acid from resistant strains as compared with other beta-lactams.

Anti-Bacterial Agents↗
PubMed1983

[Bacterial flora isolated from the cervical secretions of patients with acute gonorrhea and their sensitivities to spectinomycin and ampicillin].

Subsequent to studies of clinical effects of spectinomycin (SPCM) and ampicillin (ABPC) given in combination on acute gonorrhea in female patients, sensitivity of N. gonorrhoeae to each of these antibiotics was determined. Furthermore, cervical discharge of female patients was searched for other organisms. Combined antimicrobial action of SPCM and ABPC were also examined. Aerobic and anaerobic organisms were obtained from cervical discharge of 20 cases of acute gonorrhea. The predominant aerobe (45%) was S. agalactiae, while the predominant anaerobes (combined 70%) were Peptococcus spp. and Peptostreptococcus spp.. The results indicate that mixed infections of N. gonorrhoeae and aerobic and anaerobic Gram-positive cocci should be considered in acute gonorrhea in female. MICs of SPCM for 20 strains of N. gonorrhoeae were determined. SPCM showed MICs of 3.13 approximately 12.5 micrograms/ml against 10(8) and 10(8) CFU/ml. There were no strains with MICs of 25 micrograms/ml. ABPC had MICs of 0.2 micrograms/ml against 10(8)CFU/ml and 0.1 micrograms/ml against 10(8) CFU/ml. Five strains (25%), MICs of which were greater than or equal to 6.25 micrograms/ml against 10(8) CFU/ml and greater than or equal to 1.56 micrograms/ml against 10(6) CFU/ml, were all beta-lactamase producing. In vitro combined antimicrobial action of SPCM and ABPC is additive.

Acute Disease↗
PubMed1983

[Antibacterial activity of cefotiam against clinical isolates in the field of obstetrics and gynecology].

Antibacterial activity of cefotiam (CTM) against clinically isolated organisms in the field of obstetrics and gynecology was discussed as follows: In the point of view of the MICs peak, CTM was 1-fold worse than CEZ against Gram-positive bacteria, while, in the case of the concentration of CTM required to inhibit the growth of 80% or 90% of the total number of tested Gram-positive organism, antibacterial activity of CTM was approximately identical with that of CEZ, CMZ or SBPC. CTM against E. coli, K, pneumoniae, P. Mirabilis was 16-32-fold more effective than CEZ and 4-16-fold than CMZ. Against indole-positive organisms with CEZ was no effective, CTM was considerably effective. But antibacterial activity of CTM against B. fragilis was insufficient. However, in the case that no spore forming anaerobic organism involved in infectious disease, it is said that existence of aerobic organism is important. As E. coli is representative of aerobic organism, CTM with potent antibacterial activity against this organism is seemed to be effective antibiotic for the gynecological infection.

Bacteria↗
PubMed1983

[Comparative double-blind study of cefotetan and cefmetazole in patients with purulent peritonitis].

A clinical study of daily administrations of CTT (2g) and CMZ (4g) was performed by randomized double blind techniques in order to compare the clinical efficacy, side effects and usefulness. The 150 cases studied were as follows; Purulent peritonitis due to perforated gastrointestinal tracts (122 cases), traumatic peritonitis (4 cases), biliary peritonitis (7 cases), postoperative peritonitis (7 cases), intraabdominal abscess (6 cases); 4 cases were excluded from the statistical evaluation because of protocol deviation. 1. No significant differences in background parameters were found between the 2 groups. 2. Clinical evaluation of the efficacy rate by the attending physician revealed no significant differences between the 2 groups (CTT 82%, CMZ 74%). However, in severely perforated duodenal and/or gastric ulcer cases, greater clinical effectiveness was obtained in the CTT group than in the CMZ group (P less than 0.05). 3. Clinical evaluation of the efficacy rate by the committee revealed no significant differences between the 2 groups; 86% and 82% for the CTT and CMZ groups, respectively. However, in cases which showed marked effectiveness, although statistical significant differences were not found between the 2 groups (P less than 0.1), the CTT group (53%) was superior to the CMZ group (38%). In 122 cases of the purulent peritonitis, the efficacy rate was 92% in the CTT group and 86% in the CMZ group; this difference was also statistically significant by U-test (P less than 0.05). 4. The effectiveness was also evaluated by microbiological study in 90 cases. No significant differences were found in the ratio of eradication of isolated bacteria between the 2 groups; 30 of 44 cases (68%) in the CTT group and 34 of 46 cases (74%) in the CMZ group. 5. With regards to this eradication of bacterial strains; 115 of 119 strains (96.6%) were eradicated in the CTT group and 115 of 126 strains (91.3%) in the CMZ group. 6. Side-effects were noted in 2 cases in the CTT group; one case of nausea with chest discomfort and the other case of drug eruption. In the CMZ group, only 1 case of drug eruption was noted. Moreover, no significant differences were found in the laboratory findings between the 2 groups. Based on these results it was concluded that the clinical effectiveness of CTT (1 g twice daily) against peritonitis is as excellent as that of CMZ (2 g twice daily), both drugs being administered by drip infusion.

Adolescent↗
PubMed1983

[Fundamental and clinical studies of T-1982 (cefbuperazone) in the field of obstetrics and gynecology].

T-1982 (cefbuperazone), a new cephamycin antibiotic, was studied for its MICs against clinical isolates, transfer into uterine tissues and clinical efficacy in the field of obstetrics and gynecology. The following results were obtained. The MICs of T-1982 were measured against 397 strains of 13 species. In antibacterial activity, T-1982 was equal to CTT but inferior to CMZ against Gram-positive bacteria. Against Gram-negative bacteria, T-1982 was superior to CEZ and other cephamycin antibiotics, i.e. CMZ and CTT. The activity of T-1982 was almost equal to that of CMZ and superior to that of CTT against B. fragilis. T-1982 concentrations in various uterine tissues attained the peaks of 16.8-35.9 micrograms/g at 34 minutes after intravenous administration of 1 g, the tissue/serum ratios being 34-72%. The tissue concentrations were about 3-4 micrograms/g even at 5-5.5 hours after administration. T-1982 was intravenously administered at a dose of 1 g twice daily to 5 cases with obstetrical and gynecological infections. All the cases responded to the therapy. Elevated GOT and GPT were observed in 1 case, but they returned to normal on 8 days after the therapy.

Adnexa Uteri↗
PubMed1983

[Experimental and clinical studies on BRL 25000 (clavulanic acid-amoxicillin) in the field of otorhinolaryngology].

We studied BRL 25000, (amoxicillin trihydrate and potassium clavulanate a beta-lactamase inhibitor in ratio of 2: 1), in the otorhinolaryngological field in terms of its basic and clinical utility. Pharmacokinetics The distribution of BRL 25000 in mucous membrane of maxillary sinus and retaining liquid of maxillary sinus after administration of 1 tablet (375 mg) was favorable and the good transitional properties were obtained. It was similar to chephems. Clinical results BRL 25000 was administered to 26 patients (6 cases with otitis media, 9 cases with tonsillitis, 2 cases with sinusitis, 1 case with laryngitis, 5 cases with pharyngitis, 1 case with epipharyngitis and 2 cases with pharyngolaryngitis). The overall clinical effective response was obtained in 88.5% of patients. Bacteriological effects BRL 25000 was effective against amoxicillin-resistant S. aureus and K. rhinoscleromatis. Side effects No adverse reactions were seen.

Adult↗
PubMed1983

[Susceptibility of clinically isolated Haemophilus influenzae to cephamycin antibiotics].

Susceptibility of 100 clinical isolates of H. influenzae (84 beta-lactamase non-producing strains and 16 beta-lactamase producing strains) to 5 cephamycin antibiotics was studied in comparison with 3 reference antibiotics. In MIC90 against beta-lactamase non-producing strains, LMOX and ABPC were the most excellent, followed by T-1982, CTT, CTM, CMZ, CFX and CEZ. Against beta-lactamase producing strains, all the cephamycin antibiotics were as active as against beta-lactamase non-producing strains, whereas ABPC was extremely less active with the MIC90 of greater than 100 micrograms/ml. CTM and CEZ were about 1 tube less active than against beta-lactamase non-producing strains. Thus, it was confirmed that the cephamycin antibiotics were stable to beta-lactamase.

Adult↗
PubMed1983

[Susceptibility of clinical isolates in pediatrics to cefpiramide].

Cefpiramide (CPM, SM-1652) had broad-spectrum antibacterial activities against most of clinically isolated organisms to which are paid attention as pathogenic organism in the field of pediatrics. Antibacterial activities of CPM against Staphylococcus aureus, Streptococcus pyogenes, Haemophilus influenzae, Bordetella pertussis and Proteus mirabilis were almost the same as those of cefoperazone (CPZ). Antibacterial activities of CPM against Escherichia coli and Klebsiella pneumoniae were somewhat weaker than those of CPZ, but antibacterial activity of CPM against Pseudomonas aeruginosa was rather stronger than that of CPZ and almost the same as that of cefsulodin. Antibacterial activity of CPM has a tendency to decrease in beta-lactamase (PCase type) producing S. aureus, E. coli, K. pneumoniae, H. Influenzae, etc. It is suggestive that the determination of not only the antibacterial activity of CPM against pathogenic organisms but also the beta-lactamase producing activity of them is important on the occasion of clinical use of CPM.

Age Factors↗
PubMed1983

[Experimental and clinical evaluation of cefroxadine in the field of obstetrics and gynecology].

Cefroxadine (CXD) was studied in the field of obstetrics and gynecology and the following results were obtained. MIC values of CXD against 55 clinical isolates were investigated, from 6.25 to 12.5 micrograms/ml for 8 strains of E. coli, 6.25 micrograms/ml for 3 strains of K. pneumoniae and from 0.39 to 3.13 micrograms/ml for 9 strains of anaerobes such as Peptostreptococcus and Peptococcus in 10(6) cells/ml. Transfer of CXD into intrapelvic organ such as uterus, uterine tube and ovary after the oral administration of 500 mg was investigated. The concentrations in the tissues of genitalia ranged from 5.84 to 7.44 micrograms/g about 2 hours later after the administration. CXD was orally given to 18 patients with infections of genital organs at daily dose of 1,500 mg (500 mg 3 times a day). The clinical response was good, and efficacy rate was 88.9%. No remarkable side effects were observed.

Adult↗
PubMed1983

[Fosfomycin susceptibility of clinical isolates from otorhinolaryngological infections].

To investigate the clinical and bacteriological usefulness of orally administered fosfomycin calcium (FOM), the susceptibility of 558 strains to FOM was determined. These strains were isolated at our Center, between Feb. 1982 and Feb. 1983 from otorhinolaryngological infections. Several other drugs were also tested on the same strains for comparison. The results were as follows. The MIC80 of FOM was 6.25 micrograms/ml against each of aerobic Gram-positive cocci such as S. aureus, S. pyogenes, S. pneumoniae, anaerobic Gram-positive cocci such as Peptococcus spp., and H. influenzae. P. mirabilis, indole-positive Proteus spp., P. aeruginosa and K. pneumoniae were inhibited, respectively, at 3.13, 12.5, 12.5 and 50 micrograms/ml. Most of the MICs were between 3.13 and 12.5 micrograms/ml, and the difference between the MIC50 and the MIC90 was only 1 to 2 tubes since there were few resistant strains. With the comparative drugs, there was a reduction seen in the sensitivities of pipemidic acid (PPA), ampicillin (ABPC), and cephalexin (CEX) against, respectively, P. aeruginosa, beta-lactamase-producing H. influenzae and S. aureus. FOM showed good and constant sensitivity for the weakly PPA-sensitive P. aeruginosa, weakly ABPC-sensitive beta-lactamase-producing H. influenzae and weakly CEX-sensitive S. aureus. The MICs of FOM against the main problematic isolates from otorhinolaryngological infections were mostly between 3.13 and 12.5 micrograms/ml, including the above weakly PPA-, ABPC- and CEX-sensitive strains. Based on these values, FOM may be said to have moderate antibacterial efficacy when administered orally in the usual dose.(ABSTRACT TRUNCATED AT 250 WORDS)

Anti-Bacterial Agents↗
PubMed1983

[Clinical evaluation of tinidazole on anaerobic infections in the field of obstetrics and gynecology].

The bacteriological and clinical effect of tinidazole (TDZ) was evaluated in 16 cases of intrauterine, intrapelvic and vulvar infection caused by anaerobic organisms and the following results were obtained. Anaerobes were detected in 16 cases, including 1 case with anaerobes alone and 15 cases with mixed anaerobes and aerobes. Eight different species and 24 strains were detected. A single species was isolated from 9 cases, 2 species from 6 cases and 3 species from 1 case. The main species detected were Bacteroides fragilis and Peptostreptococcus spp. of which 9 strains (37.5%) each were isolated. Escherichia coli and B. fragilis was the most frequently occurring combination. The peak MIC values of TDZ were 0.78 micrograms/ml for B. fragilis and 1.56 micrograms/ml for Peptostreptococcus spp. Most other organisms were also sensitive to TDZ. The bacteriological response of the anaerobic infections to TDZ was 87.5% and overall clinical efficacy was 87.5%. Few side effects were observed.

Adult↗
PubMed1983

[Clinical studies on gentamicin for infectious diseases following intravenous drip infusion].

An antibiotic drug of aminoglycoside group, gentamicin (GM) for parenteral use was used to 14 hospitalized patients; 5 with acute or subacute cholecystitis, 6 with acute peritonitis (4 cases were due to acute appendicitis, a case was torsion of right ovarian cyst and a case was cecal CROHN's disease), 1 with fistula ani and abscess, and 2 with localized peritonitis after gastrectomy due to gastric ulcer. GM in a dose of 60 mg were administered by intravenous drip infusion for 1 to 2 hours, twice a day for 4 to 12 days. To the cases of biliary tract infection, GM was treated for preoperative chemotherapy and to the other cases GM was treated for postoperative chemotherapy. Clinical response was excellent in 7 cases, good in 6 cases, fair in 1 case and poor in none. No adverse effect was observed. The organisms were isolated in 7 cases, 7 were Escherichia coli, 2 were Klebsiella pneumoniae and 3 were Bacteroides fragilis. The MICs for GM were 0.78--1.56 micrograms/ml in 10(8) and 10(6) cells/ml, except B. fragilis. Before the operation of above cases, GM in a dose of 60 mg (a case was 40 mg) were administered by intravenous drip infusion for 1 to 2 hours in 7 cases (3 biliary tract infection, 2 acute peritonitis and 2 gastric ulcer) and 7 cases by intramuscularly. The materials of common duct bile, gall bladder bile, gall bladder wall, the appendix and other tissues, ascites and serum samples were taken during the operation. GM concentration was measured by bioassay method with Bacillus subtilis ATCC 6633 as test organism. GM concentrations in bile and gall bladder wall after intravenous drip infusion were higher than those after intramuscular administration. In the appendicitis with localized peritonitis, GM concentration in the appendix wall with catarrhal appendicitis was 0.90 microgram/g after intramuscular administration. In the cases with diffuse peritonitis and catarrhal appendicitis, GM concentrations in appendixes were 1.18 micrograms/g and 1.37 micrograms/g after intravenous drip infusion. Therefore, it was supposed that GM could be used safety and usefully by intravenous drip infusion than that by intramuscular administration.

Acute Disease↗