1676
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Yamaguchi T, Yamamoto M, Kimoto E. Release of spectrin-containing vesicles from human erythrocyte ghosts by dimyristoylphosphatidylcholine. J Biochem 1996; 119:95-9. [PMID: 8907181 DOI: 10.1093/oxfordjournals.jbchem.a021222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Membrane vesicles, which were released from human erythrocyte ghosts by dimyristoylphosphatidylcholine (DMPC), showed a protein composition similar to that of the erythrocyte membrane, despite a reduction of in spectrin content. The spectrin content of vesicles decreased with increasing hemoglobin concentration within ghost membranes, but increased upon exposure of hemoglobin-free ghosts to a pressure of 100 MPa. The ESR spectra of spin-labeled membrane proteins showed that membrane proteins in ghosts became unfolded at high pressure. Furthermore, spectrin-poor and protein 4.1-rich vesicles were released by DMPC from diamide-treated ghosts in which spectrin was cross-linked and stabilized. Taking into account that the spectrin tetramer is stabilized by hemoglobin [Liu and Palek (1984) J. Biol. Chem. 259, 11556-11562], these results suggest that the spectrin content of DMPC-induced vesicles from erythrocyte ghosts increases with increasing instability of the cytoskeletal network in parent cells.
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1677
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Enjoji Y, Sugi K, Yamaguchi T. [Non reentrant supraventricular tachycardia]. RYOIKIBETSU SHOKOGUN SHIRIZU 1996:444-7. [PMID: 9047506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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1678
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Enjoji Y, Sugi K, Yamaguchi T. [Accelerated AV junctional rhythm]. RYOIKIBETSU SHOKOGUN SHIRIZU 1996:461-4. [PMID: 9047511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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1679
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Yamaguchi T. [Selenium concentration in blood and Duchenne-type progressive muscular dystrophy]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1996; 54:134-40. [PMID: 8587180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The concentration of selenium (Se) and the activity of glutathione peroxidase (GSH-Px) in plasma and erythrocytes were measured in healthy men and in patients with Duchenne-type progressive muscular dystrophy (DMD). In healthy men, the Se concentration in erythrocytes showed a steep rise with aging and ascended gradually in plasma. The GSH-Px activity in both plasma and erythrocytes clearly increased with aging. The relationship between the Se concentration and the GSH-Px activity in healthy men showed a parallel rise with aging, but the coefficients of correlation were not very high (r = 0.44 and 0.56 in plasma and erythrocytes, respectively. In DMD patients, on the other hand, the Se concentration in erythrocytes decreased steeply with aging, and it decreased gradually in plasma. The GSH-Px activity in both plasma and erythrocytes apparently increased as in healthy men with aging, but the level was about 80% of that of healthy men. When selenite (Se+4) is added to the whole blood in vitro at 25 degrees C, it is rapidly taken up by erythrocytes (within several minutes) and is then released into plasma (a period of 30 min), then subsequent reuptake by erythrocytes is proceeded slowly. Our attention was attracted to the pattern of selenite release from erythrocytes of DMD patients.
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1680
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Takahashi T, Shimotsuma M, Hagiwara A, Yamaguchi T. Mechanism and treatment of peritoneal carcinomatosis: intraperitoneal chemotherapy with mitomycin C bound to carbon particles. Cancer Treat Res 1996; 81:185-92. [PMID: 8834585 DOI: 10.1007/978-1-4613-1245-1_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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1681
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Lee CW, Yamaguchi T. [Pericardial calcification]. RYOIKIBETSU SHOKOGUN SHIRIZU 1996:569-71. [PMID: 9117715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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1682
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Yamaguchi T. [Computational fluid mechanical analyses of the mechanical environment: particularly the wall shear stress distribution and morphological responses of endothelial cells]. TANPAKUSHITSU KAKUSAN KOSO. PROTEIN, NUCLEIC ACID, ENZYME 1996; 41:48-55. [PMID: 8584741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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1683
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Yamaguchi T, Fukuda T, Uetani M, Hayashi K, Kurosaki N, Maeda H, Matsumoto T, Miyake H. Renal cell carcinoma in a patient with Beckwith-Wiedemann syndrome. Pediatr Radiol 1996; 26:312-4. [PMID: 8657457 DOI: 10.1007/bf01395704] [Citation(s) in RCA: 9] [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
We report the case of a patient with Beckwith-Wiedemann syndrome (BWS) who developed renal cell carcinoma (RCC). At birth, this patient presented with macroglossia, diastasis recti, mild gigantism, hepatomegaly and hypoglycemia, and the diagnosis of BWS was made. At 22 months, an intrapelvic rhabdomyosarcoma was detected and resected. At 37 months, computed tomography (CT) demonstrated a small mass with high attenuation in the right kidney, which was surgically confirmed to be RCC.
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1684
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Ichikawa D, Takahashi T, Hashimoto N, Hoshima M, Kitamura K, Yamane T, Yamaguchi T, Abe T, Inazawa J. Multiple primary cancers with microsatellite instability: report of a case. Jpn J Cancer Res 1996; 87:105-8. [PMID: 8609041 PMCID: PMC5920989 DOI: 10.1111/j.1349-7006.1996.tb00207.x] [Citation(s) in RCA: 2] [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: 01/31/2023] Open
Abstract
We report here a patient who developed a variety of tumors both synchronously and metachronously over a 2-year period. The involved organs were the uterus, ureter, and small and large intestines. The patient underwent open surgery 3 times and polypectomies 6 times. Postoperative histopathologic analysis showed 2 adenomas and 8 carcinomas. Genetic analysis revealed microsatellite instabilities at the tested loci in all 10 tumors, indicating that replication errors played an essential role in the tumorigenesis. Early identification of microsatellite instability could be useful for predicting development of additional primary cancers.
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1685
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Minor T, Yamaguchi T, Klauke H, Wingenfeld P, Michalk D, Isselhard W. Taurine reduces experimental liver injury after cold ischemic preservation and a period of rewarming prior to reperfusion. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1996; 403:157-61. [PMID: 8915353 DOI: 10.1007/978-1-4899-0182-8_18] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Livers of male Wistar rats (250-300 g) were isolated and flushed with 10 ml of Ringer's solution and 10 ml of UW preservation solution. Then the organs were stored for 24 h at 4 degrees C in UW solution. Livers of Group 1 were rinsed with 10 ml of Ringer's solution and reperfused after hypothermic storage with oxygenated Krebs-Henseleit solution (95% O2; 5% CO2) in a nonrecirculating system at constant pressure (10 mmHg) and 37 degrees C. Livers of Group 2 were incubated for 30 min at 37 degrees C prior to reperfusion, in order to simulate rewarming of the organ upon surgical implantation. Livers of Group 3 were treated like Group 2, but taurine was admixed to the UW solution (1 mM). Livers of Group 1 showed little signs of a preservation/reperfusion injury, with low enzyme activities of the parenchymal ALT and endothelial purine nucleoside phosphorylase (PNP) in the postischemic rinse solution (ALT: 19.9 +/- 12.4; PNP: 3.3 +/- 0.4 U/liter), adequate portal flow values about 3 ml/g/min and high O2 uptake at the end of the experiment (VO2: 3.2 +/- 0.4 ml/100g/min). Livers of Group 2 exhibited nearly tenfold higher enzyme activities in the rinse solution (ALT: 247.0 +/- 94.7*; PNP: 29.5 +/- 17.0* U/l) and disturbed tissue perfusion with significantly reduced flow values of about 2 ml/g/min during the first 10 min of reperfusion. As a result, the recovery of O2 uptake was only 2.2 +/- 0.3 ml/100 g/min*. Addition of taurine (Group 3) resulted in a significant reduction of the enzyme loss (ALT: 96.2 +/- 50.0#; PNP:12.4 +/- 7.0# U/liter) and improved portal flow values and O2 uptake at the end of reperfusion (2.7 +/- 0.3 ml/100 g/min#). The results give evidence for the importance of the rewarming period after hypothermic storage, which is inevitable during implantation of the organ in vivo. Taurine seems to exert a protective effect, affecting both the vascular endothelium and parenchymal tissue (*p < 0.05 vs Group 1; # p < 0.05 vs Group 2).
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1686
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Yamaguchi T, Nishimura S, Takahashi K, Yoshikuni M, Masaki J, Hirai T, Saneyoshi M. DNA polymerase betas from liver and testes of cherry salmon, Oncorhynchus masou: purification and characterization of DNA polymerase betas with acidic isoelectric points. J Biochem 1996; 119:186-92. [PMID: 8907195 DOI: 10.1093/oxfordjournals.jbchem.a021207] [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: 02/03/2023] Open
Abstract
DNA polymerase betas from cherry salmon, Oncorhynchus masou, liver and testes were purified to near homogeneity, and no substantial differences between the enzymes were observed. The molecular weight of both enzymes, determined by SDS-polyacrylamide gel electrophoresis, was 39,000. The amino acid sequences of the N-terminus of the liver and testes enzymes were determined and compared with that of the rat enzyme. Of the N-terminal 30 amino acid residues of salmon liver DNA polymerase beta, 21 (70%) were identical to those of the rat enzyme sequence. However, unlike most eukaryotic DNA polymerase betas, the isoelectric points (pIs) of the DNA polymerase betas from salmon liver and testes were both estimated to be 6.2, which is significantly different from the alkaline isoelectric points (pI = 8.5-9.5) established for other highly purified vertebrate DNA polymerase betas. The cherry salmon DNA polymerase betas were still active at below 10 degrees C, compared with the rat enzyme.
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1687
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Degawa T, Yamaguchi T. [Post infarction (congestive) heart failure]. RYOIKIBETSU SHOKOGUN SHIRIZU 1996:46-50. [PMID: 9047406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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1688
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Enjoji Y, Sugi K, Yamaguchi T. [Enhanced atrioventricular nodal conduction]. RYOIKIBETSU SHOKOGUN SHIRIZU 1996:496-9. [PMID: 9047521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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1689
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Sohara Y, Murayama F, Endo S, Yamaguchi T, Fuse K, Hasegawa T. [Chest wall reconstruction, relation between reconstruction method and infection]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1996; 49:57-61. [PMID: 8558809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We have operated 52 cases of chest wall resection in these 20 years. Twenty five cases in it were reconstructed by unabsorbable artificial materials such as Marlex mesh, Gore-Tex sheet and some others (Group 1). Eleven cases were covered with the net knitted by absorbable threads or muscle flaps (Group 2). Resting 16 cases have not received any definitive renovations (Group 3). Group 1 has suffered from such severe postoperative complications as acute empyema (8%) and chronic empyema (8%). Few cases in Group 2 has had infectious complication and ventilatory disturbance. Rate of postoperative vital capacity in Group 3 was the lowest value among three groups, though they had the smallest chest wall defects. We obtained following conclusions from this study. Every chest wall defect should be repaired by some way even if the defect were small. Chest wall defect in compromised host should be repaired by absorbable artificial material and muscle flap. Unabsorbable artificial materials are now indispensable for the reconstruction of large chest wall defect, however we must fully take care of postoperative infections in cases of its use.
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1690
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Mizuki Y, Yamamoto K, Yamaguchi T, Fujii T, Miyazaki H, Ohmori H. Intermolecular interactions of antimicrobial fluoroquinolones with purified rat liver CYP1A2 studied by proton nuclear magnetic resonance spectroscopy. Xenobiotica 1996. [DOI: 10.3109/00498259609062805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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1691
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Itoh K, Takahashi E, Mukaiyama O, Satoh Y, Yamaguchi T. Effects of a thromboxane synthase inhibitor (CS-518) on the eosinophil-dependent late asthmatic response and airway hyperresponsiveness in guinea pigs. Int Arch Allergy Immunol 1996; 109:79-85. [PMID: 8527955 DOI: 10.1159/000237235] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The effects of CS-518, a thromboxane A2 synthase inhibitor, on antigen-induced dual bronchial responses, airway hyperresponsiveness (AHR) and airway eosinophilia were investigated in an experimental guinea pig model of the late asthmatic response. Oral CS-518 (1 and 10 mg/kg) inhibited immediate and late asthmatic responses dose-dependently. It also inhibited AHR and eosinophil accumulation after antigen challenge. Therefore, thromboxane A2 is possibly involved in development of the late asthmatic response and AHR, and CS-518 was inferred to inhibit these via inhibition of eosinophil accumulation and thromboxane production.
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1692
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Itoh K, Takahashi E, Mukaiyama O, Satoh Y, Yamaguchi T. Relationship between airway eosinophilia and airway hyperresponsiveness in a late asthmatic model of guinea pigs. Int Arch Allergy Immunol 1996; 109:86-94. [PMID: 8527956 DOI: 10.1159/000237236] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
To elucidate the mechanism of development of asthma, we tried to develop a model which elicited a late asthmatic response by a combination of systemic and inhaled sensitization with ovalbumin in guinea pigs. Eighty-seven percent of animals elicited both an immediate and late asthmatic response after the third antigen inhalation. Airway eosinophilia and airway hyperresponsiveness (AHR) induced after the third challenge were more severe than those after the first challenge. There was a good correlation between airway eosinophilia and AHR in this model under experimental modulation of the number of eosinophils, such as by interleukin 5 or antieosinophil antibody injection. These results demonstrate that eosinophils play an important role in the development of late asthmatic response and AHR.
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1693
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Sagara H, Yoshikawa K, Tomizawa I, Takizawa Y, Nitta Y, Tsunoda T, Fukuda H, Yamaguchi T, Masuda G, Negishi M, Ajisawa A, Murata M, Ohnishi K, Irimajiri S, Obana M, Matsumoto F, Imai T, Sakurai I, Takahashi T, Mori M, Mizuno Y, Katoh K, Hosoda S, Bamba T, Saito M. [Basic and clinical studies of pazufloxacin on infectious enteritis research group of T-3761 on infectious enteritis]. KANSENSHOGAKU ZASSHI. THE JOURNAL OF THE JAPANESE ASSOCIATION FOR INFECTIOUS DISEASES 1996; 70:60-72. [PMID: 8822054 DOI: 10.11150/kansenshogakuzasshi1970.70.60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A clinical study was carried out on pazufloxacin (PZFX) in 137 patients including shigellosis, Salmonella enteritis, enteropathogenic Esherichia coli enteritis and cholera, and carriers of these pathogens. Antibacterial activity of PZFX against clinical isolates, fecal concentration of PZFX and effects of PZFX on fecal microflora were also investigated. The overall clinical efficacy rate was 97.2%. The bacteriological efficacy rates were 98.2% against Shigella spp., 81.8% against Salmonella spp., 50% against Vibrio cholerae O1, and 100% against E. coli, V. parahaemolyticus, Aeronomas spp., Plesionomas shigelloides and V. cholerae non-O1, respectively. Side effect (epigastralgia) was observed in 1 of 130 cases (0.8%). The rate of abnormal laboratory findings was 11.2% (11/98). These were mainly elevation of GOT and/or GPT and increased eosinophils. The clinical usefulness rate was 95.2%. The MIC90 values of PZFX against Shigella spp., Salmonella spp. and E. coli were 0.025, 0.025 and 0.025 micrograms/ml, respectively. The results of fecal drug concentration and the effects on fecal microflora in one patient were compatible with those obtained in healthy volunteers.
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1694
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Yamaguchi T. Computational visualization of cardiovascular blood flow. Stud Health Technol Inform 1995; 29:703-12. [PMID: 10163796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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1695
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Yamaguchi T, Yamazaki K. The Hyper Hospital. Virtual reality-mediated networked medical care system. Stud Health Technol Inform 1995; 29:220-38. [PMID: 10163754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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1696
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Minematsu K, Hasegawa Y, Yamaguchi T. [Diffusion MRI for evaluating cerebrovascular disease]. Rinsho Shinkeigaku 1995; 35:1575-1577. [PMID: 8752468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
There are several new magnetic resonance (MR) technologies, which will provide data about the pathogenesis, circulatory state and cellular effects of ischemic stroke. Among them, diffusion MRI is the most promising one. This technology clearly reveals, within minutes of stroke onset, ischemic lesions which ultimately progress to infarct. The early ischemic lesions demonstrated by diffusion MRI represent regions with slower water diffusions perhaps due to intracellular water accumulation or shrinkage of the extracellular spaces resulting from ionic pump failure, spreading depression, or other mechanisms. The diffusion MRI can show not only irreversible but also reversible ischemic lesions, and therefore has a potential to discriminate salvageable tissues from irreversibly damaged tissues before a therapeutic intervention with thrombolytic and/or cytoprotective agents. The diffusion MRI can highlight only a fresh lesion, because water diffusion is decreased during several days after stroke onset. Diffusion MRI is extremely prone to motion artifacts, a major concern against clinical application. This problem can be solved by combination with an ultrafast technique, echo planar (EP) imaging. The EP diffusion MRI will become a rapid, reliable, objective and essential emergency diagnostic test in a clinical setting that will guide the development and application of acute therapeutic intervention.
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1697
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Ishizaka N, Ishizaka Y, Ikari Y, Isshiki T, Tamura T, Suma H, Yamaguchi T. Initial and subsequent angiographic outcome of percutaneous transluminal angioplasty performed on internal mammary artery grafts. Heart 1995; 74:615-9. [PMID: 8541165 PMCID: PMC484116 DOI: 10.1136/hrt.74.6.615] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE To estimate the initial outcome and incidence of restenosis of angioplasty of internal mammary artery grafts in a retrospective study. METHODS The study population consisted of 46 patients (48 lesions) who underwent first balloon angioplasty within the internal mammary artery graft. Most (37/48) were at the distal anastomosis. A few (8/48) were in the graft body. Six patients with the evidence of angiographic restenosis underwent a second angioplasty. RESULTS The success rate and the restenosis rate of the first angioplasty was 73% and 30% respectively. Of the 34 patients (35 lesions) with a successful first angioplasty, 30 underwent follow up angiography with a restenosis rate of 30% (9/30). A second angioplasty was performed on six of the nine restenotic lesions, with a success rate of 83% and no restenoses. The percent diameter stenosis of the recipient native coronary artery was significantly greater in the restenosis group, at 75 (SD 27)% v 89 (17)%, p < 0.05. CONCLUSIONS First angioplasty of 46 patients (48 lesions) within an internal mammary artery graft was performed with a success rate of 73% and a restenosis rate of 30% (follow up rate of 88%). The extent of the stenosis of the recipient native coronary artery may affect the restenosis rate.
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1698
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Sakamoto K, Nakamura Y, Aikoh S, Baba T, Perregaard J, Pedersen H, Moltzen EK, Mulford DJ, Yamaguchi T. Metabolism of sertindole: identification of the metabolites in the rat and dog, and species comparison of liver microsomal metabolism. Xenobiotica 1995; 25:1327-43. [PMID: 8719908 DOI: 10.3109/00498259509061921] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
1. The main exretion pathways of a novel antipsychotic drug, sertindole, in the rat and dog are faecal excretion via intestinal secretion and biliary excretion respectively. 2. Similar liver microsomal metabolic patterns were observed in the rat, monkey, and man, and Lu 30-131 (5-hydroxy-serindole) and Lu 30-148 (4-hydroxy-serindole) were the major metabolites, and Lu 25-073 (nor-sertindole) and Lu 28-092 (dehydro-sertindole) were minor ones. In the dog, however, Lu 31-096 (3'-fluoro-4'-hydroxy-sertindole) and Lu 30-148 (4-hydroxy-sertindole) were the major metabolites, and Lu 25-073 (nor-sertindole), Lu 28-092 (dehydro-sertindole), and Lu 30-131 (5-hydroxy-sertindole) were minor ones. These findings suggest that the metabolism of sertindole in man resembles those in the rat and monkey and is different from that in the dog. 3. Rat in vitro and in vivo liver metabolites, dog liver microsomal metabolites, and dog biliary metabolites were isolated and identified by liquid chromatography/mass spectrometry and/or 1H-nmr. 4. Two metabolites, Lu 31-096 (3'-fluoro-4'-hydroxy-sertindole) and Lu 31-154 (3'-fluoro-4'-hydroxy-dehydro-sertindole), were formed via the 'NIH shift' mechanism. 5. Sertindole is metabolized by hydroxylation at the 4- and 5-positions on the imidazolidinone ring, N-dealkylation, and an NIH shift at the fluorophenyl group. Further metabolism (dehydration, oxidation, hydroxylation, glucuronidation and sulphation) was also observed. 6. In the rat, oxidation at the imidazolidinone ring and N-dealkylation are the main metabolic reactions. On the other hand, in the dog, the NIH shift at the fluorophenyl group, followed by conjugation is the main metabolic pathway.
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1699
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Nakagawa A, Yamaguchi T, Takao T, Amano H. [Five cases of drug-induced pneumonitis due to Sho-saiko-to or interferon-alpha or both]. NIHON KYOBU SHIKKAN GAKKAI ZASSHI 1995; 33:1361-1366. [PMID: 8821988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We encountered five cases of drug-induced pneumonitis due to Sho-saiko-to or interferon-alpha or both. In all 5 cases the underlying disease was chronic hepatitis or liver cirrhosis caused by hepatitis C virus. Interferon-alpha alone was administered in one case, Sho-saiko-to alone was administered in two cases, and both were administered in two cases. Bronchoalveolar lavage was done in 4 cases. In three cases, lymphocytosis and abnormally low CD4/8 ratios were found on examination of bronchoalveolar lavage fluid. In the only case in which interferon-alpha alone was given the percentage of neutrophils in bronchoalveolar lavage fluid was abnormally high, and the adult respiratory distress syndrome developed. Lymphocyte stimulation tests were done in four cases, and in all four cases the only positive results were against Sho-saiko-to or against interferon-alpha. The frequency of drug-induced pneumonitis among patients with chronic hepatitis or liver cirrhosis was 0.7% in those given only Sho-saiko-to, 0.5% in those given only interferon-alpha, and 4.0% in those given both interferon-alpha and Sho-saiko-to. Therefore, pneumonitis due to Sho-saiko-to and to interferon-alpha is more likely to occur if these two drugs are given simultaneously.
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1700
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Hirano T, Minematsu K, Hasegawa Y, Yamaguchi T. [Acetazolamide reactivity on SPECT correlates with PET parameters]. Rinsho Shinkeigaku 1995; 35:1581. [PMID: 8752470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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