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Tomoda M, Hirabayashi K, Shimizu N, Gonda R, Ohara N, Takada K. Characterization of two novel polysaccharides having immunological activities from the root of Panax ginseng. Biol Pharm Bull 1993; 16:1087-90. [PMID: 8312860 DOI: 10.1248/bpb.16.1087] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Two acidic polysaccharides, called ginsenan S-IA and ginsenan S-IIA, were isolated from the root of Panax ginseng C. A. Meyer. They were homogeneous on electrophoresis and gel chromatography, and their molecular masses were estimated to be 5.6 x 10(4) and 1.0 x 10(5), respectively. Ginsenan S-IA is composed of L-arabinose: D-galactose: D-galacturonic acid in the molar ratio of 8:8:1, and ginsenan S-IIA is composed of L-arabinose: D-galactose: D-glucose: D-galacturonic acid in the molar ratio of 15:10:2:5, in addition to small amounts of O-acetyl groups. About a half (ginsenan S-IA) and about a quarter (ginsenan S-IIA) of the hexuronic acid residues exist as methyl esters. Reduction of carboxyl groups, methylation analysis, nuclear magnetic resonance and periodate oxidation studies indicated that their structural features include mainly alpha-1,5-linked L-arabino-beta-3,6-branched D-galactan type structural units. Both polysaccharides showed remarkable reticuloendothelial system-potentiating activity in a carbon clearance test and pronounced anti-complementary activity. These substances are the first examples having a relatively high content of both alpha-3,5-branched L-arabinose and beta-1,4-linked D-galactose units among the acidic arabinogalactans with activities on phagocytosis and anti-complement.
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102
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Koyanagi T, Hirabayashi K, Satomi K, Toyama Y, Fujimura Y. Predictability of operative results of cervical compression myelopathy based on preoperative computed tomographic myelography. Spine (Phila Pa 1976) 1993; 18:1958-63. [PMID: 8272943 DOI: 10.1097/00007632-199310001-00006] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The transverse area and flattening ratio of the spinal cord were determined with preoperative computed tomographic myelography in 103 patients with cervical compression myelopathy: cervical spondylotic myelopathy (n = 44); ossification of the posterior longitudinal ligament (n = 39); and cervical disc herniation (n = 20). With these values and other clinical items (eg, age, duration of symptoms, preoperative severity), a linear model to predict postoperative recovery was attempted by multiple regression analysis. In cervical spondylotic myelopathy and ossification of the posterior longitudinal ligament, the transverse area of the spinal cord and the duration of symptoms were accepted as effective explanatory variables to predict recovery. In cervical disc herniation, regardless of the transverse area or duration, the recovery was good, and pathologic state was considered essentially different.
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103
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Nakazawa H, Toyama Y, Satomi K, Fujimura Y, Hirabayashi K. Idiopathic spinal cord herniation. Report of two cases and review of the literature. Spine (Phila Pa 1976) 1993; 18:2138-41. [PMID: 8272972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The authors experienced unique cases of spinal cord herniation. Only eight cases of spinal cord herniation have been reported formerly. The authors report two cases of spinal cord herniation accompanied with double structure of dura mater (duplicated dura mater). The causes of their condition are discussed in this report.
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104
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Fujita K, Nakagawa T, Hirabayashi K, Nagai Y. Neutral proteinases in human intervertebral disc. Role in degeneration and probable origin. Spine (Phila Pa 1976) 1993; 18:1766-73. [PMID: 8235859 DOI: 10.1097/00007632-199310000-00009] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Neutral proteinases were partially purified from human intervertebral disc by extraction with guanidine hydrochloride followed by Sephadex G-75 column chromatography. They showed gelatinolytic and elastolytic activities at neutral pH. The apparent molecular weights of these enzymes were 70 KD and 25 KD, the former being the complexed form of the latter. The sensitivity to various synthetic inhibitors indicated these enzymes to be serine elastases. Furthermore, they were considered to be leukocyte elastases because anti-leukocyte elastase antibody inhibited the proteinase activity of these enzymes. Proteinase activity was not detected in normal discs, except for some slight activity in the end-plate. In contrast, the degenerated discs showed high activity, especially in the nucleus pulposus and end-plate. Similar high levels of proteinase activity were found in the vertebral body adjacent to normal as well as degenerated discs. These findings suggest that leukocyte elastase, which is normally present in the vertebral body, flows into and degrades the matrix of the intervertebral disc under pathologic conditions.
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105
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Kasahara Y, Nakai Y, Miura D, Kanatani H, Yagi K, Hirabayashi K, Takahashi Y, Izawa Y. Decrease in deoxyribonucleotide triphosphate pools and induction of alkaline-labile sites in mouse bone marrow cells by multiple treatments with methotrexate. Mutat Res 1993; 319:143-9. [PMID: 7692290 DOI: 10.1016/0165-1218(93)90073-m] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Methotrexate (MTX), an inhibitor of dihydrofolate reductase (DHFR), slightly induced micronuclei in bone marrow and peripheral blood cells, and this induction was enhanced by multiple treatments with the drug. Furthermore, we have suggested that the multiple-dose effect on the induction of micronuclei by MTX might be explained by intracellular accumulation of the drug, resulting in an enhancement of DHFR inhibition. An imbalance or decrease in the deoxyribonucleotide (dNTP) pool would be generated by this enzyme inhibition. Therefore, we attempted to determine the level of the dNTP pool in mouse bone marrow cells. The levels of three dNTPs (dTTP, dATP, dGTP) as determined by HPLC were only 1/10-1/40 of the levels previously found in mammalian cell lines, but dCTP levels could not be determined precisely because they approached the limits of detectability. The levels of dTTP, dATP and dGTP in mouse bone marrow cells 3 h after four injections of MTX (4 mg/kg/day) decreased to 21.2%, 47.0% and 38.1%, respectively, of those in the control group. The level of dTTP 3 h after four injections of 100 mg/kg of the drug decreased to almost 0%. The results of alkaline elution assays suggested that alkaline-labile sites were generated in mouse bone marrow cells 6 h after four injections of MTX (4 mg/kg). These findings suggest that the multiple-dose effects of MTX on micronucleus induction in mouse bone marrow cells may be explained by the decrease in the dNTP pool and subsequent generation of alkaline-labile sites (possibly apurinic/apyrimidinic sites).
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Abstract
BACKGROUND Based on the fact that combination chemotherapy with cisplatin, ifosfamide, and bleomycin generated a 69% response rate in patients with recurrent cervical cancer; that 254-S (a cisplatin analogue) monotherapy generated a 46.3% response rate for cervical cancer, which was higher than those generated by cisplatin and carboplatin in historic comparison; and that peplomycin is a bleomycin analogue with improved pulmonary toxic effects, a combination regimen with 254-S, ifosfamide, and peplomycin was evaluated in an animal experiment and a clinical study in patients with advanced or recurrent cervical cancer with an expectation that the regimen might show a higher efficacy than 254-S monotherapy and the combination regimen including cisplatin. METHODS In the clinical testing, 254-S was administered intravenously (IV) at 80-100 mg/m2, ifosfamide was administered IV at 1500 mg/patient for 5 days, and peplomycin was administered intramuscularly at 5 mg/patient for 6 days. This treatment was repeated every 4 weeks. RESULTS As a result, this regimen showed additive or synergistic antitumor effects in mice receiving B16 melanoma transplants. In the clinical study, 83.8% and 60.9% response rates were obtained in 37 previously untreated patients with Stage III or IV cervical cancer and 23 with recurrent cervical cancer, respectively. The dose-limiting factor was bone marrow toxic effects, which were tolerable. The other toxic effects were mild, and there were no deaths. CONCLUSIONS From these results, this combination regimen was thought worthy of evaluation in a Phase III comparative study in patients with advanced or recurrent cervical cancer.
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107
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Asahara K, Hirabayashi K, Yokouchi N, Okubo T. [A field assessment of a community 'rehabilitation class' for home handicapped persons--focusing on participant social network]. [NIHON KOSHU EISEI ZASSHI] JAPANESE JOURNAL OF PUBLIC HEALTH 1993; 40:363-74. [PMID: 8329756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The purpose of this study is to evaluate a community 'Rehabilitation class' for its effectiveness. A function of the 'Rehabilitation class' is the expansion of a participant's social network, and the following hypothesis was formulated: the reciprocal relationships of participant and class or staff members bring about psychological effectiveness and a change of their awareness, resulting in the expansion of social networks. Actual class activity, psychological aspects and social networks of twenty-six participants and twenty care takers, who responded to a questionnaire survey, were examined with respect to the above hypothesis. Those reporting having changed were compared to those reporting no change. The results were as follows: (1) Class activity was directed at developing relationships among participants, and while most of them were changed positively, it appeared that staff members were not sufficiently involved. (2) There were 23 participants in the 'changed' group. Most of their care takers and family were changed positively. Eleven reported receiving significant emotional support from other 'Rehabilitation class' members, and therefore their social networks appeared to have expanded generally. (3) The 'non changed' group consisted of 3 participants whose social networks did not appear to have expanded. (4) Social networks outside the home were not expanded for all participants, probably due to their reported receiving little social support from others outside family members, and because they had few social roles outside the home. Based on the above results, it is concluded that effective classes involve participants individually, and encourage the independent activity of participants, and that it is necessary to have networking with other organizations in community, and the 'Rehabilitation class' should be provided to smaller local regions.
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108
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Okamoto T, Hirabayashi K, Ishiguro T. Immunohistochemical type distinction of alpha-fetoprotein in various alpha-fetoprotein-secreting tumors. Jpn J Cancer Res 1993; 84:360-4. [PMID: 7685750 PMCID: PMC5919311 DOI: 10.1111/j.1349-7006.1993.tb00144.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
In order to clarify the histogenesis of alpha-fetoprotein (AFP)-secreting tumor tissues, formalin-fixed, paraffin-embedded serial sections of 148 tumors in various organs were examined by the peroxidase-antiperoxidase method for AFP, and paradoxical concanavalin A staining. Yolk sac-type AFP was found in yolk sac tumors, embryonal carcinomas, solid teratomas, (yolk sac) endodermal cell tumors, adenocarcinomas (stomach, ovary or lung) and metastatic liver cancers. Hepatic-type AFP was demonstrated in hepatocellular carcinomas, hepatoblastomas, solid teratomas and a stomach cancer. Yolk sac-type AFP was observed in the neighboring liver cells of metastatic liver cancers without relation to the type of AFP in primary cancers. The results from serum analyses of preoperative tumor-bearing patients (68 cases) were coincident with those from immunohistochemical stainings.
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109
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Koizumi M, Watari T, Hirabayashi K. Accumulation of thallium-201 in medullary thyroid cancer with negative serum calcitonin and carcinoembryonic antigens: a case report. Ann Nucl Med 1993; 7:53-6. [PMID: 8461239 DOI: 10.1007/bf03164793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Thallium-201 (201Tl) scintigraphy has been used in the evaluation of thyroid neoplasm. Even though several authors have shown the usefulness of 201Tl scintigraphy in evaluating recurrent tumor of medullary thyroid cancer, the number of reports on primary thyroid cancer is limited. We presented a case of medullary thyroid cancer which showed 201Tl uptake in both early and delayed scans. This case had normal serum levels of calcitonin and carcinoembryonic antigen.
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110
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Tomoda M, Takeda K, Shimizu N, Gonda R, Ohara N, Takada K, Hirabayashi K. Characterization of two acidic polysaccharides having immunological activities from the root of Panax ginseng. Biol Pharm Bull 1993; 16:22-5. [PMID: 8369746 DOI: 10.1248/bpb.16.22] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Two acidic polysaccharides, named ginsenan PA and ginsenan PB, were isolated from the root of Panax ginseng C. A. Meyer. They were homogeneous on electrophoresis and gel chromatography, and their molecular masses were estimated to be 1.6 x 10(5) and 5.5 x 10(4), respectively. They are composed of L-arabinose: D-galactose: L-rhamnose: D-galacturonic acid: D-glucuronic acid in the molar ratios of 11:22:1:6:1 (ginsenan PA) and 3:7:2:8:1 (ginsenan PB), in addition to small amounts of O-acetyl groups. Almost all (ginsenan PA) and part (ginsenan PB) of the hexuronic acid residues exist as methyl esters. Reduction of carboxyl groups, methylation analysis, nuclear magnetic resonance and periodate oxidation studies indicated that their structural features include mainly both alpha-arabino-beta-3,6-galactan type and rhamnogalacturonan type structural units. Both polysaccharides showed remarkable reticuloendothelial system-potentiating activity in a carbon clearance test, pronounced anti-complementary activity and alkaline phosphatase-inducing activity in a dose dependent manner.
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111
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Wada Y, Tomiyoshi Y, Fujimaru J, Ogura M, Hirabayashi K, Yoshida S, Takeda Y. [Sensitivity test for anti-tumor agents-3. MTT assay and its clinical effect]. Gan To Kagaku Ryoho 1992; 19:2349-54. [PMID: 1463341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
MTT assay, a sensitivity test of anti-tumor agents was performed, and its clinical usefulness, was discussed. In 15 surgical specimens, the cell suspensions were prepared aseptically, and divided into three processing; namely, Papanicolaou (Pap) smears to confirm the malignant cells, MTT assay, and cell cultures in chamber slides. MTT assay was evaluated only when tumor cells in the chamber slide were observed 50% or more by Pap staining. Drugs judged to be effective were applied for patients, resulting in 64.2% of predictive accuracy in the sensitivity. Conclusions; 1) MTT assay was developed for sensitivity test of anti-tumor agents, 2) Strict assessment was carried out by the confirmation of cancer cells using chamber slides, 3) On clinical usefulness, predictability for the sensitivity was 64.2%, that for resistance was 100%, and over all predictability was 66.7% 4) MTT assay was useful for the determination of effective and for elimination of ineffective drugs.
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112
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Hirabayashi K, Saitoh E, Ijima H, Takenawa T, Kodama M, Hori M. Influence of fibril length upon ePTFE graft healing and host modification of the implant. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH 1992; 26:1433-47. [PMID: 1447228 DOI: 10.1002/jbm.820261104] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Influence of fibril length (porosity) upon synthetic vascular graft healing has not been investigated in detail. The purpose of this study was to determine the dependence of neoendothelial healing, cellular response, and biocompatibility on the fibril length of expanded polytetrafluoroethylene (ePTFE) grafts with an internal diameter of 1.5 mm. ePTFE grafts of different fibril length, 20, 40, 60, and 90 microns, were implanted into the abdominal aorta of rats (n = 5 for each group). After 5 weeks, the implants were harvested and examined for neointimal and pseudointimal coverage by light microscopy and SEM. The hydroxyproline content of the implants was measured, and the distribution of collagen types was examined. The neointimal and pseudointimal coverage was related to the fibril length, and the neoendothelial healing was better on 60-microns and 90-microns grafts than on 20-microns and 40-microns grafts. The amount of hydroxyproline was also related to the fibril length, however, no significant difference could be observed between 60-microns and 90-microns grafts. Collagen types I and III were almost identically located in the middle portion of the implants. Our results demonstrate that the fibril length of ePTFE grafts affected neoendothelial healing and its affinity to collagen.
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113
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Satomi K, Hirabayashi K, Toyama Y, Fujimura Y. A clinical study of degenerative spondylolisthesis. Radiographic analysis and choice of treatment. Spine (Phila Pa 1976) 1992; 17:1329-36. [PMID: 1462209 DOI: 10.1097/00007632-199211000-00012] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Surgical treatment of degenerative spondylolisthesis in 27 patients by means of anterior lumbar interbody fusion and in 14 patients by means of posterior decompression yielded average degrees of recovery of 77% and 56%, respectively. Preoperative analysis of myelograms, and computed tomographies after myelography indicated that anterior shifting of the inferior articular process of the slipping vertebra was the main factor responsible for compression of the nervous tissue in the early stages of degenerative spondylolisthesis. Patients in these stages should be treated by anterior lumbar interbody fusion. In the later stages of degenerative spondylolisthesis, osteophytes on the superior articular processes of the lower vertebra were an additional factor in compression, and patients should be treated by posterior decompression. Computed tomographies after myelography provided the key images for identifying pathologic processes in degenerative spondylolisthesis and selecting appropriate surgical procedures.
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114
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Toyama Y, Hirabayashi K, Fujimura Y, Satomi K. Spontaneous fracture of the odontoid process in rheumatoid arthritis. Spine (Phila Pa 1976) 1992; 17:S436-41. [PMID: 1440040 DOI: 10.1097/00007632-199210001-00016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Six cases of spontaneous fracture of the odontoid process in rheumatoid arthritis are presented. Fifty-one patients with atlantoaxial subluxation in rheumatoid arthritis underwent surgery between 1981 and 1990. This included six patients (in 10%) who had subluxation accompanied by fracture of the odontoid without apparent trauma. The mean patient age was 58 years and all had a long history of rheumatoid arthritis. No trauma was considered to be the cause of the fracture. This is a fracture caused by erosion and osteoporosis of the odontoid process due to rheumatoid synovitis, aging and steroid therapy. In addition, another cause is a dynamic load produced from the instability accompanying atlantoaxial subluxation working on the odontoid in cervical extension. It is important remember that the odontoid process is susceptible to spontaneous fracture.
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115
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Kasahara Y, Nakai Y, Miura D, Yagi K, Hirabayashi K, Makita T. Mechanism of induction of micronuclei and chromosome aberrations in mouse bone marrow by multiple treatments of methotrexate. Mutat Res 1992; 280:117-28. [PMID: 1378536 DOI: 10.1016/0165-1218(92)90007-m] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Methotrexate (MTX), an inhibitor of dihydrofolate reductase (DHFR), slightly induced micronuclei and this induction of micronuclei was enhanced by multiple treatments with the drug (Yamamoto et al., 1981; Hayashi et al., 1984; CSGMT/JEM.MMS, 1990). More micronuclei and chromosomal aberrations in mouse bone marrow cells were induced by multiple than by single treatment. The MTX level in mouse plasma and bone marrow showed little (or no) differences between single and quadruple treatments several hours after the injection(s). On the other hand, the DHFR activity in bone marrow cells 3 h after one and four injections was decreased to approximately 38 and 0%, respectively, of that in non-treated mice. Furthermore, the intracellular MTX level in the bone marrow cells (but not in total bone marrow) after four injections was about 10-fold higher than that after one injection. The amount of MTX bound to protein 3 h after four injections, as assayed by gel filtration (Sephadex G-25), was approximately 8-fold greater than after one injection. Therefore, the multiple-dose effects of MTX on the induction of micronuclei and chromosomal aberrations may be explained by the intracellular accumulation of MTX resulting in an enhancement of enzyme inhibition.
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116
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Ono H, Hirabayashi K, Ono Y, Sagiya A, Kanaya H, Iidaka K. [The effect of elastase on aminonucleoside nephrosis--on renal vascular system]. NIHON JINZO GAKKAI SHI 1992; 34:783-8. [PMID: 1479717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This study was performed to investigated the relationship between cross sectional areas of glomerular arterioles and glomerular volume in rats with puromycin aminonucleoside (PAN)-induced nephrosis, which is an experimental model of glomerular sclerosis. We also evaluated the effect of an anti-arteriosclerotic agent, elastase on these parameters. Six-week-old male Sprague-Dawley rats were divided into 3 groups; control, PAN-treated (70 mg/kg i.p.), or PAN+elastase-treated (5 mg/kg/day i. m.) group. After 12 weeks of experimental period, microvascular cast of the kidney was prepared, and the cross sectional areas of afferent and efferent arterioles as well as glomerular volume were measured using scanning electron microscopy. In the juxtamedullary glomeruli with minor abnormalities, the efferent arteriole was narrower in PAN-treated rats than in the control rats and the elastase-treatment partially corrected it (control 55.7, PAN 35.9, PAN+elastase 43.7 x 10 microns 2). On the other hand, the cross sectional area of afferent arteriole was not different among the 3 groups. In glomeruli showing sclerosis, the cross sectional area of efferent arteriole correlated positively with the glomerular volume. There results suggest that constriction of the efferent arterioles contributes to the development of glomerular sclerosis in PAN-induced nephrosis. In addition, elastase possibly inhibits this process and thereby protect glomeruli from sclerosis.
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117
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Kamata M, Satomi K, Hirabayashi K, Ueno M, Asazuma T, Fujimura Y. A congenital spinal arachnoid diverticulum expanded into the retropleural cavity. A case report and short literature review. Spine (Phila Pa 1976) 1992; 17:854-7. [PMID: 1502655 DOI: 10.1097/00007632-199207000-00025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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118
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Hiramatsu Y, Sakakibara Y, Koshima I, Akishima S, Hirabayashi K, Mitsui T, Hori M. [A case report of poststernotomy mediastinitis treated with the pectoralis major muscle flap after protracted wound irrigation]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1992; 45:432-4. [PMID: 1593816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A 8-year-old boy developed mediastinitis after direct closure of atrial septal defect. Methicillin-resistant Staphylococcus aureus (MRSA) was detected from the wound. Intermittent wound irrigation with povidone-iodine solution and vancomycin solution was protracted for two months. After the remission of MRSA infection, implantation of pectoralis major muscle flap was performed. Without recurrence of infection the wound was healed completely. Although pectoralis major muscle flap is an effective method of choice for mediastinitis, an appropriate timing of enforcing this method should be investigated hereafter.
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119
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Takizawa K, Harada M, Fujimaru J, Matsushiro N, Shima Y, Andoh I, Satoh M, Yokoo I, Iguchi T, Hirabayashi K. [The clinical and pharmacokinetic evaluation of two-route chemotherapy with cisplatin and sodium thiosulfate in combination with angiotensin II]. NIHON SANKA FUJINKA GAKKAI ZASSHI 1992; 44:595-602. [PMID: 1619320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Thirty-six courses of chemotherapy with cisplatin (CDDP) and sodium thiosulfate (STS) were performed in 31 patients with gynecologic cancer 2 weeks after operation under the hypertensive condition induced by angiotensin II (AT-II). One hundred-fifty mg of CDDP/body was intraperitoneally administered while the usual systolic blood pressure was increased to 130-140% by AT-II. The hypertension was maintained for 15 minutes after finishing CDDP infusion, then 8g of STS was intravenously infused immediately after the cessation of AT-II. The urinary Pt level measured 15 minutes after finishing CDDP infusion was extremely low at 1.37 +/- 0.47 micrograms/ml, in spite of the significantly high levels of plasma total Pt (7.83 +/- 0.85 micrograms/ml) and filtrable Pt (4.02 +/- 0.55 micrograms/ml). This suggests that, during renal vasoconstriction induced by AT-II, the renal blood flow as well as renal uptake of CDDP was decreased. Plasma filtrable Pt levels were measured at 15, 30, 60 and 120 minutes after intraperitoneal administration of CDDP. At 15 and 30 minutes a significantly higher blood concentration was found than in the control group (p less than 0.05). However, CDDP-induced toxicities of the bone marrow, liver, kidney and alimentary tract were not increased. The extreme vasoconstriction in the kidneys and other organs induced by AT-II might have protected these organs from the toxicities of CDDP despite the fact that STS infusion was delayed by 15 minutes after CDDP infusion. STS infused immediately after the cessation of AT-II could neutralize the CDDP preventing the occurrence of toxicities.(ABSTRACT TRUNCATED AT 250 WORDS)
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Suzuki K, Ichihara M, Takeuchi S, Ohtake N, Yoshikawa M, Hirabayashi K, Kurihara N. Electron microscopy studies of dislocations in diamond synthesized by a cvd method. ACTA ACUST UNITED AC 1992. [DOI: 10.1080/01418619208201542] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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121
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Hirabayashi K, Okada E, Nakazuma Y, Akamatsu Y, Sezaki H, Ohta M, Nakanishi Y. [Combination chemotherapy with 254-S, ifosfamide and peplomycin for advanced or recurrent cervical cancer]. NIHON SANKA FUJINKA GAKKAI ZASSHI 1992; 44:341-8. [PMID: 1376759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
From favorable results with 254-S, a new cisplatin analogue, single administration, we have conducted a clinical study to investigate the efficacy of combination of 254-S, ifosfamide and peplomycin, each of which has a different dose limiting factor. A total of 45 patients, including 22 patients with stage III and IV cervical cancer and 23 cases with recurrent cervical cancer, were treated with at least two courses of 254-S (100mg/m2, iv. Day 1), ifosfamide (1,500mg/body, iv. Day 1-5) and peplomycin (5mg/body, im. Day 1-6), and tumor response was evaluated clinically and by CT scanning. The response rate obtained in patients with advanced disease was 81.8% (PR = 17, CR = 1) and that in cases with recurrence was 60.9% (PR = 12, CR = 2). Myelosuppression was the dose limiting factor. In the 121 courses, grade 3 and 4 of leucopenia and thrombocytopenia were observed with an incidence of 44% and 32%, respectively and DIC occurred in 3 cases with poor PS though they recovered after reducing the 254-S dose to 80 mg/m2. The other toxicities were mild except for alopecia. Anaphylaxia was observed in a case at the second administration though the patient recovered in 15 minutes. There was no death. As to prognosis, a significant prolongation of survival period was observed in recurrent cases and 4 cases are alive (NED) after one and a half year. In the advanced cases, until now 3 cases of stage IV have died from the disease. We have concluded that this regimen is effective as a neoadjuvant chemotherapy for advanced cervical cancer and useful for the treatment of recurrent cervical cancer.
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Tokunaga Y, Hirabayashi K, Toyama Y, Satomi K, Fujimura Y. Aneurysmal bone cyst of the axis treated by laminoplasty with autogenous iliac bone. Spine (Phila Pa 1976) 1992; 17:S57-9. [PMID: 1566187 DOI: 10.1097/00007632-199203001-00013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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123
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Kasahara Y, Wakata A, Nakai Y, Yuno K, Miura D, Yagi K, Hirabayashi K, Makita T. The micronucleus test using peripheral blood reticulocytes from methotrexate-treated mice. Mutat Res 1992; 278:145-51. [PMID: 1372697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
The induction of micronuclei by methotrexate (MTX) was examined in two laboratories using mouse peripheral blood reticulocytes. MTX was a weak inducer in the micronucleus test using bone marrow cells and single treatments, and was one of the few chemicals showing a multiple-treatment effect (CSGMT/JEMS.MMS, 1990). In our preliminary experiments, the ratio of reticulocytes to total erythrocytes decreased greatly after a single treatment with MTX at 100 mg/kg, so lower dose levels of MTX were selected to carry out the micronucleus test in peripheral blood. Full-scale tests were performed at dose levels of 0, 10, 20, 40, and 80 mg/kg, with five sampling times of 0, 24, 48, 72, and 96 h. Frequencies of micronucleated reticulocytes (MNRETs) increased dose-dependently at 72 h, to a maximum of approximately 1%; some preparations obtained from the animals at higher doses could not be examined because the ratio of reticulocytes to total erythrocytes had decreased severely. At doses of 0.5-4.0 mg/kg, the effect of multiple treatments vs. single treatments was not clear, nor was the maximum level of response much different. Since MTX induced a clear positive response in peripheral blood reticulocytes after a single treatment, the reticulocytes in peripheral blood seem a more sensitive target.
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Matsuda S, Oh K, Tateno M, Kojima Y, Hirabayashi K, Okada E, Doko F, Kawai J. [Clinical study of intramuscular imipenem/cilastatin sodium in the field of obstetrics and gynecology]. THE JAPANESE JOURNAL OF ANTIBIOTICS 1991; 44:1359-67. [PMID: 1798070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The efficacy and the safety of intramuscular imipenem/cilastatin sodium (IPM/CS) were evaluated in 22 patients with obstetric and gynecologic infections. 0.5 g/0.5 g of IPM/CS was suspended in a lidocaine solution and administered in the gluteal muscle twice a day for 3-7 days. Nineteen patients with intrauterine infections were evaluable for the clinical efficacy and 22 for the safety. 1. Clinical efficacies were excellent in 6 patients, good in 11 and poor in 2, and the efficacy rate was 89.5%. Thirteen out of 14 patients who had not responded to treatments with other previously administered antibiotics showed excellent or good responses to IPM/CS. 2. Causative bacteria were eradicated in 5 patients, decreased in 2, unchanged in 3 and replaced in 3, with an eradication rate of 61.5%. 3. Among 22 patients treated with IPM/CS, an eruption and general itching were observed in 1 patient, but no abnormal laboratory test values were observed.
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Ueda Y, Ono Y, Sagiya A, Ishitobi F, Takimoto T, Hirabayashi K, Oka K, Kanaya H, Iidaka K. Changes of anionic sites in the mesangium with aging in rats: a comparison of the immersion and intravenous PEI methods. NIHON JINZO GAKKAI SHI 1991; 33:825-9. [PMID: 1774838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We investigated the changes in anionic sites of the mesangial matrix related to aging in rats, employing polyethyleneimine (PEI) as a cationic probe. We compared the numbers of anionic sites detected by the immersion method and by the intravenous administration of PEI. Analysis of the mean numbers of PEI particles per 0.1 micron2 in the mesangial matrix revealed a significant decrease related to aging. Our results suggested that there was no significant difference in efficacy between the immersion and intravenous methods. Loss of negative charge of the mesangial matrix is believed to promote mesangial dysfunction and the entrapment of macromolecular substances, and so to play an important role in the onset of glomerular sclerosis.
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