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Nolde J, Lugo-Gavidia LM, Kannenkeril D, Chan J, Robinson S, Jose A, Joyson A, Schlaich L, Carnagarin R, Azzam O, Kiuchi M, Schlaich M. Simultaneously measured interarm blood pressure difference is not associated with pulse wave velocity in a clinical dataset of at-risk hypertensive patients. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Introduction
Recent analysis of systolic inter-arm differences in blood pressure from the INTERPRESS-IPD Collaboration suggest an association with increased all-cause mortality, cardiovascular mortality and cardiovascular events, previous studies have demonstrated associations with other risk parameters.
Purpose
We aimed to reproduce these associations in a cohort of 199 treated, at-risk, hypertensive patients with pulse wave velocity (PWV) as a surrogate marker of cardiovascular (CV) damage.
Methods
Simultaneously measured Inter-arm blood pressure differences, 24 hour ambulatory BP and PWV were measured in 199 treated patients of a tertiary hospital hypertension outpatient clinic. Associations between systolic inter-arm BP difference and PWV were analyzed with uni- and multivariate regression models.
Results
Out of 199 participants, 90 showed an Inter-arm blood pressure difference of more than 5 mmHg. The Inter-arm difference was not associated with PWV. Furthermore, neither observed single blood pressure measurements nor 24 hour ambulatory blood pressure was associated with Inter-arm blood pressure differences.
Conclusion
In our clinical patient cohort we failed to observe an association between inter-arm BP differences and PWV. Mode of assessment, study design or the sample characteristics of this treated, hypertensive cohort may explain the negative results. The limited sample size of the study poses a challenge to the detection of smaller effects in our study.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- J Nolde
- The University of Western Australia, School of Medicine, Perth, Australia
| | - L M Lugo-Gavidia
- The University of Western Australia, School of Medicine, Perth, Australia
| | - D Kannenkeril
- University of Erlangen-Nuremberg, Department for Nephrology, Erlangen, Germany
| | - J Chan
- The University of Western Australia, School of Medicine, Perth, Australia
| | - S Robinson
- The University of Western Australia, School of Medicine, Perth, Australia
| | - A Jose
- The University of Western Australia, School of Medicine, Perth, Australia
| | - A Joyson
- The University of Western Australia, School of Medicine, Perth, Australia
| | - L Schlaich
- The University of Western Australia, School of Medicine, Perth, Australia
| | - R Carnagarin
- The University of Western Australia, School of Medicine, Perth, Australia
| | - O Azzam
- The University of Western Australia, School of Medicine, Perth, Australia
| | - M Kiuchi
- The University of Western Australia, School of Medicine, Perth, Australia
| | - M Schlaich
- The University of Western Australia, School of Medicine, Perth, Australia
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2
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Kaiho T, Suzuki H, Matsumoto H, Toyoda T, Inage T, Tanaka K, Sakairi Y, Nakajima T, Kiuchi M, Motohashi S, Nakayama T, Yoshino I. The Role of Immune Checkpoint Molecules in Lung Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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3
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Morita H, Toh H, Oshima K, Nakano A, Kiuchi M, Kuroyanagi H, Arakawa K, Suda W, Honda K, Hattori M. Complete genome sequence of Bifidobacterium angulatum JCM 7096(T) isolated from human feces. J Biotechnol 2015; 211:10-1. [PMID: 26142062 DOI: 10.1016/j.jbiotec.2015.06.412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 06/23/2015] [Indexed: 11/19/2022]
Abstract
Bifidobacterium angulatum JCM 7096(T) was isolated from human feces. Here we report the complete genome sequence of this organism. This paper is the first report demonstrating the fully sequenced and completely annotated genome of a B. angulatum strain.
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Affiliation(s)
- Hidetoshi Morita
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan; CREST, Japan Science and Technology Agency, Kawaguchi, Saitama, Japan.
| | - Hidehiro Toh
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Kenshiro Oshima
- CREST, Japan Science and Technology Agency, Kawaguchi, Saitama, Japan; Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Akiyo Nakano
- Department of Microbiology and Infectious Diseases, Nara Medical University, Kashihara, Nara, Japan
| | - Misa Kiuchi
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Hiromi Kuroyanagi
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Kensuke Arakawa
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Wataru Suda
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Kenya Honda
- CREST, Japan Science and Technology Agency, Kawaguchi, Saitama, Japan; Department of Microbiology and Immunology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Masahira Hattori
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan
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4
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Kiuchi M, Yamamura T, Okudera M, Souksavanh V, Ishigami T, Iwase T, Warnakulasuriya S, Komiyama K. An assessment of mast cells and myofibroblasts in denture-induced fibrous hyperplasia. J Oral Pathol Med 2013; 43:53-60. [PMID: 23627608 DOI: 10.1111/jop.12072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The pathogenesis of denture-induced fibrous hyperplasias has not been examined in detail to explain how tissue injury results in fibrous hyperplasia of the oral mucosa. PATIENTS AND METHODS We examined the presence of mast cells and myofibroblasts in 33 denture-induced fibrous hyperplasias (DIFH) compared with 10 healthy gingival tissues. The parameters examined included mast cell numbers, tissue distribution, degranulation, and cell subtypes using immunohistochemistry. The presence of myofibroblasts and their likely origin was also examined by double immunofluorescense staining. Furthermore, we investigated the synthesis of osteopontin and TGF-β, considered to be involved in the transformation of a fibroblast to a myofibroblast. RESULTS The results demonstrated that the mast cell numbers are significantly increased in the DIFH compared with non-disease controls. The mast cell localization in lesions was higher in the superficial areas with inflammatory cell infiltration compared with the deep fibrotic area (P < 0.01). The number of tryptase-positive mast cells was significantly higher compared with chymase-positive ones. The TGF-β- or osteopontin-positive cell infiltration into the lesion was found in high numbers. The presence of myofibroblasts was identified in 14 of 33 cases (42%), and some of these cells showed apoptosis when assessed by the TUNEL assay. On the survey of the origin of myofibroblasts, results showed αSMA and vimentin positivity indicating these transformed from fibroblasts. CONCLUSION These results are the first to show that mast cells and myofibroblasts can be detected in DIFH, indicating important roles of these cells in the pathogenesis of this lesion.
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Affiliation(s)
- Misa Kiuchi
- Department of Partial Denture Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan
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5
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Takano M, Miyajima T, Kiuchi M, Ohmori K, Amemiya H, Yokoyama T, Hashizume H, Iwasaki Y, Okamoto S, Sato H. Behçet Disease and the HLA System. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1399-0039.1976.tb00572.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Takano M, Miyajima T, Kiuchi M, Ohmori K, Amemiya H, Yokoyama T, Hashizume H, Iwasaki Y, Okamoto S, Sato H. Behçet Disease and the HLA System. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1399-0039.1976.tb00558.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Chiba K, Hoshino Y, Ohtsuki M, Kataoka H, Maeda Y, Matsuyuki H, Sugahara K, Kiuchi M, Hirose R, Adachi K. Immunosuppressive activity of FTY720, sphingosine 1-phosphate receptor agonist: I. Prevention of allograft rejection in rats and dogs by FTY720 and FTY720-phosphate. Transplant Proc 2005; 37:102-6. [PMID: 15808561 DOI: 10.1016/j.transproceed.2004.12.286] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
FTY720, a new class of immunomodulator, induces lymphopenia by sequestration of circulating lymphocytes into secondary lymphoid tissues. FTY720 at 0.1 to 1 mg/kg significantly prolonged the allograft survival in a dose-dependent manner and showed a marked synergistic effect in combination with cyclosporine (CsA) in rat skin and cardiac allograft models. In addition, the canine renal allograft survival was significantly prolonged by combination therapy with FTY720 at 0.03 to 1 mg/kg and CsA at 10 mg/kg as compared with monotherapy of FTY720 or CsA. By contrast, the combination therapy with CsA and azathioprine or CsA and mycophenolate mofetil resulted in only an additive effect in rat skin allograft. When FTY720 was administered to rats, FTY720 was metabolized by omega-oxidation of the octyl side chain, and beta-oxidation subsequently, or phosphorylated by sphingosine kinase. Omega- and beta-oxidized 4 metabolities of FTY720 at 10 mg/kg i.v. showed neither lymphopenia nor immunosuppressive activity in rat skin allograft. On the other hand, (S)-enantiomer of FTY720-phosphate at 0.1 and 1 mg/kg intravenously induced a marked lymphopenia and significantly prolonged the allograft survival in the rat allotransplantation. From these results, it is suggested the lymphopenia and the immunosuppression induced by FTY720 administration is due to the agonistic activity against SIP receptors of the active metabolite, (S)-FTY720-phosphate.
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Affiliation(s)
- K Chiba
- Research Laboratory III (Immunology), Mitsubishi Pharma Corporation, Yokohama, Japan.
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8
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Reza AMS, Kanamori Y, Shinoda T, Shimura S, Mita K, Nakahara Y, Kiuchi M, Kamimura M. Hormonal control of a metamorphosis-specific transcriptional factor Broad-Complex in silkworm. Comp Biochem Physiol B Biochem Mol Biol 2005; 139:753-61. [PMID: 15581808 DOI: 10.1016/j.cbpc.2004.09.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2004] [Revised: 09/13/2004] [Accepted: 09/14/2004] [Indexed: 10/26/2022]
Abstract
Insect metamorphosis is induced by the steroid 20-hydroxyecdysone (20E) in the absence of sesquiterpenoid juvenile hormone (JH). In Drosophila melanogaster, the Broad-Complex (BR-C) transcriptional factor plays critical roles during metamorphosis. We isolated cDNAs encoding BR-C in the silkworm Bombyx mori and examined their mRNA expression. cDNAs for three BR-C isoforms with zinc finger pairs (Z1, Z2 and Z4) and four isoforms lacking them were cloned. Their mRNAs were expressed in multiple tissues at the larval-pupal metamorphosis. In the anterior silk gland, BR-C mRNAs were expressed at the end of the last larval instar but not expressed during the penultimate instar. 20E administration induced BR-C mRNA expression and JH suppressed 20E-induced BR-C expression in this tissue both in vivo and in vitro. Thus, BR-C mRNAs are inducible by 20E only in the absence of JH, a finding that explains their metamorphosis-specific expression.
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Affiliation(s)
- A M S Reza
- Developmental Biology Department, National Institute of Agrobiological Sciences, 1-2, Owashi, Tsukuba, Ibaraki 305-8634, Japan
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9
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Hirai M, Kiuchi M, Wang J, Ishii A, Matsuoka H. cDNA cloning, functional expression and characterization of kynurenine 3-hydroxylase of Anopheles stephensi (Diptera: Culicidae). Insect Mol Biol 2002; 11:497-504. [PMID: 12230548 DOI: 10.1046/j.1365-2583.2002.00358.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Kynurenine 3-hydroxylase (K3H) is a NADPH-dependent flavin monooxygenase involved in the tryptophan pathway. Xanthurenic acid (XA) is a metabolite of this pathway and has recently been identified as a gamete activating factor (GAF) of the malarial parasite. We cloned K3H cDNA from Anopheles stephensi (AsK3H), because anopheline mosquitoes are a vector of the human malaria parasite, Plasmodium falciparum and the catalytic function of AsK3H in XA production. Recombinant AsK3H protein was expressed in Sf-9 cells using the baculovirus system and its enzymatic properties were characterized. The specific activities of crude cell lysate and affinity purified protein were 94.9 +/- 6.2 and 865.6 +/- 10.5 nmol/min/mg protein, respectively. The optimum pH of AsK3H was 7.0. Analysis of AsK3H gene expression using RT-PCR revealed that AsK3H was constitutively expressed in egg, larva, pupa and adult.
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Affiliation(s)
- M Hirai
- Department of Medical Zoology, Jichi Medical School, Minamikawachi, Tochigi, Japan.
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10
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Minakuchi C, Nakagawa Y, Kiuchi M, Tomita S, Kamimura M. Molecular cloning, expression analysis and functional confirmation of two ecdysone receptor isoforms from the rice stem borer Chilo suppressalis. Insect Biochem Mol Biol 2002; 32:999-1008. [PMID: 12213236 DOI: 10.1016/s0965-1748(02)00036-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
PCR techniques were used to clone and identify cDNAs for ecdysone receptor A and B1 (EcR-A and EcR-B1) isoforms from the rice stem borer, Chilo suppressalis. They differ only in the N-terminal A/B regions and show high sequence identities to other insects' EcRs. At the wandering stage, EcR-B1 mRNA was expressed more abundantly in the midgut than in the epidermis and fat body, whereas expression levels of EcR-A mRNA were similar in the three tissues. In the epidermis of the last instar larvae, the maximal mRNA expression of both EcR-A and EcR-B1 was observed from the wandering to prepupal stages prior to the peak of ecdysteroid titer in the hemolymph. In gel mobility shift assays, in vitro translated C. suppressalis EcR-B1 (CsEcR-B1) and Bombyx mori ultraspiracle (BmUSP) proteins bound to the Pal 1 and Drosophila melanogaster hsp27 ecdysone response element as a heterodimer. These results indicate that the cDNAs isolated here encode functional ecdysone receptors.
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Affiliation(s)
- C Minakuchi
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
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11
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Hirai M, Kamimura M, Kikuchi K, Yasukochi Y, Kiuchi M, Shinoda T, Shiotsuki T. cDNA cloning and characterization of Bombyx mori juvenile hormone esterase: an inducible gene by the imidazole insect growth regulator KK-42. Insect Biochem Mol Biol 2002; 32:627-635. [PMID: 12020837 DOI: 10.1016/s0965-1748(01)00141-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The insect growth regulator (IGR) imidazole KK-42 induces hemolymph juvenile hormone esterase activity and precocious metamorphosis in Bombyx mori. As an initial step to understand the molecular action of KK-42, we isolated a full-length of juvenile hormone esterase cDNA from B. mori (BmJHE). The deduced amino acid sequence of BmJHE showed high identity to JHEs of Heliothis virescens (54%) and Choristoneura fumiferana (52%). Recombinant BmJHE protein expressed in the baculovirus expression system hydrolyzed 3H-JH III and JH analog, HEPTAT, indicating that BmJHE cDNA encodes functional JH esterase. Northern blot analysis showed that the BmJHE transcript was present predominantly in the fat body at the beginning of the last larval instar. During this instar, BmJHE transcript increased gradually until day 7, then decreased, and increased again on day 10 in the fat body. This temporary expression pattern was similar to that of JHE enzyme activity in hemolymph. In contrast, in the 4th instar, the BmJHE transcript was present in the fat body even though hemolymph JHE activity was very low. Western blot analysis using anti-BmJHE antiserum showed BmJHE protein was present in hemolymph during the 5th instar but not during the 4th instar. These results indicate that BmJHE protein is secreted into hemolymph at the metamorphic stage. Hemolymph JHE activity was high in precociously metamorphosed 4th instar larvae (treated KK-42) but low in normal 4th and extra-molted 6th instar larvae (fed 20E). KK-42-treated larvae showed high expression level of BmJHE transcript in the fat body, suggesting that KK-42 enhances BmJHE gene expression in the fat body.
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Affiliation(s)
- M Hirai
- National Institute of Agrobiological Science, 1-2 Owashi, Tsukuba, Ibaraki 305-8634, Japan
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12
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Iwata M, Komiya S, Nakamura K, Kiuchi M, Andoh N, Hirahara F, Maitani Y, Takayama K. Release property of progesterone from a mixed-base suppository consisting of Witepsol W35 and Witepsol E85. Drug Dev Ind Pharm 2001; 27:1039-45. [PMID: 11794806 DOI: 10.1081/ddc-100108366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The mechanism of drug release from progesterone suppositories that consist of two types of hard fat (Witepsol W35 and Witepsol E85) was investigated. The strength, the thermodynamic characteristics, the surface structures, the drug release property, methylene blue penetration into suppositories, and change of surface structure after the dissolution test were employed for detecting characteristics of progesterone suppositories. The formulation with a mixing ratio of Witepsol W35 and Witepsol E85 at a 1:1 ratio showed the maximum strength value. The peak temperature of the suppositories showed a tendency to increase with increases in the ratio of Witepsol E85. The maximum height of the profiles measured with laser microscopy, from 20.8 microm to 29.2 microm, reached a maximum after 3 h of the dissolution test. When the suppositories were immersed in pH 7.4 phosphate buffer containing 0.5% methylene blue at 37 degrees C, the penetrating area increased with time. The weight of the suppositories also increased with time. According to these findings, it was suggested that the release of drug from a mixed type of suppository containing progesterone was via the matrix and pores.
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Affiliation(s)
- M Iwata
- Department of Pharmaceutics, Hoshi University, Tokyo, Japan
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13
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Sasagawa H, Nakahara Y, Kiuchi M. An ENF peptide, Bombyx mori paralytic peptide, induces cell proliferation and morphological changes in Bombyx cell lines. In Vitro Cell Dev Biol Anim 2001; 37:638-40. [PMID: 11776967 DOI: 10.1290/1071-2690(2001)037<0638:aepbmp>2.0.co;2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Kamimura M, Nakahara Y, Kanamori Y, Tsuzuki S, Hayakawa Y, Kiuchi M. Molecular cloning of silkworm paralytic peptide and its developmental regulation. Biochem Biophys Res Commun 2001; 286:67-73. [PMID: 11485309 DOI: 10.1006/bbrc.2001.5365] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The silkworm paralytic peptide (PP) is a member of the ENF peptide family that exerts multiple biological activities involved in defense reaction and growth regulation. We isolated its cDNA and examined mRNA expression profiles. cDNA encoded 131 amino acids from which the 23-residue PP sequence was found at the C-terminal portion. Immunoblot analysis and paralytic activity assay indicated that inactive pro-protein in larval hemolymph was processed into active peptide immediately after bleeding. In the last larval instar, 0.6-kb PP mRNA was expressed in various tissues, of which the fat body was predominant. Its expression in the fat body decreased during the feeding period and then increased during metamorphic process. Juvenile hormone and 20-hydroxyecdysone upregulated its expression. At the embryonic stage, 1.5-kb mRNA, in addition to 0.6-kb mRNA, was expressed from 1 day after oviposition to hatching. PP was thus expressed stage-specifically under hormonal control.
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Affiliation(s)
- M Kamimura
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8634, Japan.
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15
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Abstract
Severe muscular injury sometimes causes renal failure, and myoglobin in skeletal muscle is known to induce toxic free oxygen radicals in the kidneys. The relationship between the immunohistochemical expression of myoglobin and the scavenger copper/zinc superoxide dismutase (Cu/Zn-SOD) was investigated in kidneys taken from two autopsy groups, a group with tourniquet shock (n = 4), and a group with severely injured skeletal muscle (n = 18). Paraffin-embedded kidney sections were used for immunohistochemical staining by the avidin-biotin-complex (ABC) method using antibodies against myoglobin and Cu/Zn-SOD. Detection of the two antigens was analyzed qualitatively. In most cases of tourniquet shock in which the survival time was considered to be relatively long, myoglobin staining was positive and Cu/Zn-SOD was negative. Among the seven cases of severely injured skeletal muscle in which the survival period was considered to be relatively short, positive staining was detected immunohistochemically for both myoglobin and Cu/Zn-SOD. Moreover, in most of the cases in this group that showed acute tubular necrosis, immunohistochemical staining was negative for both markers, whereas positive staining was found for most of the cases in which the kidneys were revealed to be normal by HE staining. These findings suggest that when myoglobin enters the kidneys via the circulation, Cu/Zn-SOD reacts to eliminate free radicals, but is depleted by consumption in the long run, and that there might be a relationship between these histological findings and immunohistochemical expression.
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Affiliation(s)
- M Abe
- Department of Legal Medicine, School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba, Japan
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16
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Toyono M, Nakano K, Kiuchi M, Imai K, Suzuki H, Shishikura K, Osawa M, Shiratori K, Goto Y, Nonaka I, Sugie H. A case of MERRF associated with chronic pancreatitis. Neuromuscul Disord 2001; 11:300-4. [PMID: 11297946 DOI: 10.1016/s0960-8966(00)00176-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We report the first case to our knowledge of chronic pancreatitis associated with mitochondrial encephalopathy with the A8344G mitochondrial DNA (mtDNA) mutation. This 10-year-old-girl had suffered from recurrent abdominal pain with elevated serum amylase and lipase since the age of 6, and easy fatigability, tremor and astatic seizures since the age of 8. A biopsy of quadriceps muscle revealed ragged-red-fibers and cytochrome c oxidase deficiency. Analysis of mtDNA in peripheral blood identified an A8344G mutation in the mitochondrial tRNA(Lys) gene. Taken together with physical signs of myoclonic seizures and cerebellar dysfunction, we diagnosed her as myoclonic epilepsy with ragged-red fibers associated with chronic pancreatitis. Although no association between mitochondrial disease and pancreatitis has yet been established, this case suggests it is necessary to consider the participation of mitochondrial abnormality in the pathogenesis of recurrent pancreatitis.
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Affiliation(s)
- M Toyono
- Department of Pediatrics, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku, 162-8666, Tokyo, Japan
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17
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Vermunt AM, Kamimura M, Hirai M, Kiuchi M, Shiotsuki T. The juvenile hormone binding protein of silkworm haemolymph: gene and functional analysis. Insect Mol Biol 2001; 10:147-154. [PMID: 11422510 DOI: 10.1046/j.1365-2583.2001.00249.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A cDNA fragment of haemolymph juvenile hormone binding protein (hJHBP) from larvae of Bombyx mori was amplified by RT-PCR using degenerate primers based on the N-terminal amino acid sequence of purified hJHBP and a conserved region near the C-terminus of other lepidopteran hJHBPs. 5'- and 3'-ends were amplified by RACE to yield cDNAs, hJHBP1 and hJHBP2, encoding 225 amino acids with three substitutions. hJHBP-mRNA levels in the fat body were constant in the 4th instar, but decreased in the 5th. JHBP protein was constant until wandering, then declined. Recombinant hJHBP1 expressed in E. coli migrated on SDS-PAGE with a Mr of 32 kDa and showed a Kd of 4.5 x 10-7 M with JH III, both similar to those of native hJHBP.
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Affiliation(s)
- A M Vermunt
- National Institute of Sericultural and Entomological Science, 1-2 Owashi, Tsukuba, Ibaraki 305-8634, Japan
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18
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Hata N, Kominato Y, Shimada I, Takizawa H, Fujikura T, Morita M, Funayama M, Yoshioka N, Touda K, Gonmori K, Misawa S, Sakairi Y, Sakamoto N, Tanno K, Thaik-Oo M, Kiuchi M, Fukumoto Y, Sato Y. Regional differences in homicide patterns in five areas of Japan. Leg Med (Tokyo) 2001; 3:44-55. [PMID: 12935732 DOI: 10.1016/s1344-6223(01)00003-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This article describes regional differences in the homicide patterns which occurred in Sapporo City and the surrounding area, and in Akita, Ibaraki, Chiba and Toyama prefectures in Japan. Information collected from each case of homicide included factors such as age, sex of the victim and assailant, causes of death, disposition of the offender, relationship between assailant and victim, reasons for criminal action, et al. The statistical features of homicidal episodes among the five different regions showed considerable variation, as follows. The mean death rates for homicide (number of victims per 100,000 of population) during the period 1986-1995 were 0.44 (Sapporo), 0.8 (Akita), 0.58 (Toyama), 0.7 (Ibaraki) and 0.75 (Chiba), respectively. Close family relationship between the victim and assailant was observed in the homicidal acts which occurred in Sapporo, Akita and Toyama. Assailant's relationship to victim was commonly extra-familial in Ibaraki and Chiba-neighboring megalopolis Tokyo, where some events of murder by a foreigner occurred. Homicide by female assailant, murder by mentally abnormal killers and homicide-suicide events were closely associated with family members. And these factors contributed to the considerable number of victims in Sapporo, Akita and Toyama. But, this close family relationship of the victim to the assailant did not correspond with the elevation in the number of deaths, and it was rather inversely related to the higher death rates recognized in Ibaraki and Chiba. This comparative study suggested that rapid urbanization considerably affects regional differences in homicide patterns.
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Affiliation(s)
- N Hata
- Department of Legal Medicine, Faculty of Medicine, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama-shi, Japan
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19
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Abstract
To investigate crystallization in the ion beam deposition process, titanium ions were deposited on silicon wafers at 105 and 55 eV. As titanium is an active metal, titanium compounds are formed by absorbing backfilled or residual gas. At energy levels of 105 or 55 eV, titanium crystallizes in a NaCl-type titanium compound with the backfilling of air. In all samples, (110)-oriented crystals grew with a rectangular lattice arrangement of titanium atoms. The open channel <110> of preferentially oriented crystal growth was parallel to the direction of incident ions normal to the substrate surface.
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Affiliation(s)
- M Kiuchi
- Osaka National Research Institute, Midorigaoka, Ikeda, 563-8577, Osaka, Japan
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20
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Kiuchi M, Adachi K, Kohara T, Minoguchi M, Hanano T, Aoki Y, Mishina T, Arita M, Nakao N, Ohtsuki M, Hoshino Y, Teshima K, Chiba K, Sasaki S, Fujita T. Synthesis and immunosuppressive activity of 2-substituted 2-aminopropane-1,3-diols and 2-aminoethanols. J Med Chem 2000; 43:2946-61. [PMID: 10956203 DOI: 10.1021/jm000173z] [Citation(s) in RCA: 192] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of 2-substituted 2-aminopropane-1,3-diols was synthesized and evaluated for their lymphocyte-decreasing effect and immunosuppressive effect on rat skin allograft. A phenyl ring was introduced into the alkyl chain of the lead compound 3, which is an immunosuppressive agent structurally simplified from myriocin (1, ISP-I) via compound 2. The potency of the various compounds was dependent upon the position of the phenyl ring within the alkyl side chain. The most suitable length between the quaternary carbon atom and the phenyl ring was two carbon atoms. 2-Substituted 2-aminoethanols were successively synthesized and evaluated for their T-cell-decreasing effect and immunosuppressive effect using a popliteal lymph node gain assay in rats. The absolute configuration at the quaternary carbon affected the activity, and the (pro-S)-hydroxymethyl group of compound 6 was essential for potent immunosuppressive activity. Favorable substituents for the (pro-R)-hydroxymethyl group of 6 were hydroxyalkyl (hydroxyethyl and hydroxypropyl) or lower alkyl (methyl and ethyl) groups. 2-Amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol hydrochloride (6, FTY720) was found to possess considerable activity and is expected to be useful as an immunosuppressive drug for organ transplantation.
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Affiliation(s)
- M Kiuchi
- Drug Discovery Laboratories, Welfide Corporation, Iruma-shi, Saitama, Japan.
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21
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Kiuchi M, Nagata N, Ikeno S, Terakawa N. The relationship between the response to external light stimulation and behavioral states in the human fetus: how it differs from vibroacoustic stimulation. Early Hum Dev 2000; 58:153-65. [PMID: 10854802 DOI: 10.1016/s0378-3782(00)00074-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
OBJECTIVE To determine the effects of external light stimulation on fetal behavioral states and know the difference from those of vibroacoustic stimulation. METHODS A flashlight and a vibroacoustic stimulator was applied directly on the maternal abdomen to determine the response of 56 normal fetuses at 36-40 weeks gestation. Fetal heart rate (FHR) and body movements were recorded using an actocardiograph, and fetal eye movements were observed using real-time ultrasonography. Using Nijhuis's criteria, the fetal behavioral states (1F-4F) were determined. FHR acceleration was considered a fetal response to the stimulations. RESULTS The lag time between stimulation and fetal response was within 4 s. A positive response rate to the light stimulation was higher at behavioral states 2F (82%) and 3F (83%) than at state 1F (4%). Light stimulation changed the behavioral state of two of the six 3F fetuses (33%) from 3F to 4F. No change of state was observed in fetuses that were in states 1F and 2F. For vibroacoustic stimulation, fetal response was 100% positive and changes of states were observed frequently irrespective of the behavioral state before the stimulation. CONCLUSION Fetal response to light stimulation is closely connected to fetal behavioral states and may reflect some distinct stages of the sleep-wakefulness cycle.
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Affiliation(s)
- M Kiuchi
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishimachi, 683-8504, Yonago, Japan
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22
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Kuriya SI, Ohmori S, Hino M, Ishii I, Nakamura H, Senda C, Igarashi T, Kiuchi M, Kitada M. Identification of cytochrome P-450 isoform(s) responsible for the metabolism of pimobendan in human liver microsomes. Drug Metab Dispos 2000; 28:73-8. [PMID: 10611143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
Pimobendan, 4, 5-dihydro-6-(2-(4-methoxyphenyl)-1H-benzimidazol-5-yl)-5-methyl-3( 2-H )-pyridazinone, is a new inotropic drug that augments Ca(2+) sensitivity and inhibits phosphodiesterase in cardiomyocytes. Pimobendan is well absorbed after oral administration and is metabolized in the liver to the O-demethyl metabolite, which is also active. This study was conducted to identify the cytochrome P-450 (CYP) isoform(s) responsible for the pimobendan O-demethylation in human liver microsomes. Pimobendan O-demethylase activity in human liver microsomes was significantly correlated with phenacetin O-deethylase activity. CYP1A2 antibody and specific inhibitors of CYP1A2 strongly inhibited the metabolism of pimobendan. CYP1A2 was the only one of 10 recombinant human CYP isoforms tested that catalyzed pimobendan O-demethylation at the substrate concentration of 1 microM. At a high substrate concentration (100 microM), recombinant CYP3A4 also catalyzed the reaction, and antibody to CYP3A4 partially inhibited the activity in human liver microsomes. The contribution of CYP1A2 to pimobendan O-demethylation in human liver microsomes varied in the range of 18 to 76%, whereas CYP3A4 accounted for less than 10%, as calculated using the relative activity factor method. We conclude that CYP1A2 is one of the major enzymes responsible for the O-demethylation of pimobendan and CYP3A may make a minor contribution at clinically relevant concentrations of the drug.
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Affiliation(s)
- S i Kuriya
- Division of Pharmacy, University Hospital, Japan
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23
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Shiotsuki T, Yukuhiro F, Kiuchi M, Kuwano E. Effect of 1-(4-phenoxyphenoxypropyl)imidazole (KS-175) on larval growth in the silkworm Bombyx mori. J Insect Physiol 1999; 45:1049-1055. [PMID: 12770265 DOI: 10.1016/s0022-1910(99)00088-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
1-(4-Phenoxyphenoxypropyl)imidazole (KS-175), which has two types of characteristic moieties of insect growth regulators (IGRs), the phenoxyphenoxyalkyl group of juvenile hormone analogs (JHAs) and imidazole of 1,5-disubstituted imidazole such as KK-42, was tested for its biological activity on the silkworm, Bombyx mori. Penultimate (4th) instar larvae topically treated with KS-175 did not molt for more than 20 days. This activity was different from that reported for any IGRs. After the treatment, ecdysteroid levels in the hemolymph did not increase and the cells of the prothoracic gland had shrunk. When the treated penultimate larvae were fed an artificial diet supplemented with 20 ppm of 20-hydroxyecdysone, the larvae molted to the ultimate (5th) instar with a timing similar to that of control larvae fed a diet with or without 20-hydroxyecdysone. These results suggest that topical application of KS-175 irreversibly damages ecdysone biosynthesis in the prothoracic glands.
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Affiliation(s)
- T Shiotsuki
- Department of Insect Physiology and Behavior, National Institute of Sericultural and Entomological Science, 1-2 Owashi, Tsukuba, Japan
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24
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Aosai F, Mun HS, Norose K, Chen M, Hata H, Kobayashi M, Kiuchi M, Stauss HJ, Yano A. Protective immunity induced by vaccination with SAG1 gene-transfected cells against Toxoplasma gondii-infection in mice. Microbiol Immunol 1999; 43:87-91. [PMID: 10100753 DOI: 10.1111/j.1348-0421.1999.tb02378.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To develop a vaccine by augmenting the protective cellular immunity against Toxoplasma gondii (T. gondii)-infection, T gondii SAG1 gene-transfectants were established by using RMA.S (H-2b), a murine transporter associated with the antigen processing (TAP) molecule-deficient lymphoma line, as a host antigen-presenting cell (APC). Immunization of C57BL/6 mice with the SAG1-transfected RMA.S induced CD8+ cytotoxic T lymphocytes (CTL) specific for not only SAG1-transfected RMA.S but also T gondii-infected RMA.S, and elicited protective responses to infection with a virulent T. gondii strain, RH.
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MESH Headings
- Animals
- Antigen-Presenting Cells/immunology
- Antigens, Protozoan/genetics
- Antigens, Protozoan/immunology
- Antigens, Protozoan/metabolism
- Antigens, Surface/genetics
- Antigens, Surface/immunology
- Antigens, Surface/metabolism
- Lymphocyte Activation
- Mice
- Mice, Inbred C57BL
- Protozoan Proteins/genetics
- Protozoan Proteins/immunology
- Protozoan Vaccines/genetics
- Protozoan Vaccines/immunology
- T-Lymphocytes, Cytotoxic/immunology
- Toxoplasma/genetics
- Toxoplasma/immunology
- Toxoplasmosis, Animal/immunology
- Toxoplasmosis, Animal/prevention & control
- Transfection
- Tumor Cells, Cultured
- Vaccination
- Vaccines, DNA/immunology
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Affiliation(s)
- F Aosai
- Department of Parasitology, Chiba University School of Medicine, Chiba, Japan
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25
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Nakasa H, Nakamura H, Ono S, Tsutsui M, Kiuchi M, Ohmori S, Kitada M. Prediction of drug-drug interactions of zonisamide metabolism in humans from in vitro data. Eur J Clin Pharmacol 1998; 54:177-83. [PMID: 9626925 DOI: 10.1007/s002280050442] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The purposes of this study were to identify the P450 enzyme (CYP) responsible for zonisamide metabolism in humans by using expressed human CYPs and to predict drug interaction of zonisamide in vivo from in vitro data. METHODS Ten expressed human CYPs and human liver microsomes were used in the experiments for the identification of enzymes responsible for zonisamide metabolism and for the prediction of drug-drug interactions of zonisamide metabolism in humans from in vitro data, respectively. Two-sulfamoylacetyl phenol, a reductive metabolite of zonisamide, was measured by the HPLC method. RESULTS From the experiments using ten expressed human CYPs, CYP2C19, CYP3A4 and CYP3A5 were shown to be capable of catalyzing zonisamide reduction. However, an intrinsic clearance, Vmax/kM, of CYP3A4 was much higher than those of CYP2C19 and CYP3A5. From the point of view of enzyme amount in human liver CYPs isoform and their intrinsic clearance, it was suggested that CYP3A4 is mainly responsible for zonisamide metabolism in human CYPs. Zonisamide metabolism in human liver microsomes was markedly inhibited by cyclosporin A, dihydroergotamine, ketoconazole, itraconazole, miconazole and triazolam. We estimated the possibility and degree of change of zonisamide clearance in vivo in clinical dose range from in vitro inhibition constant of other drugs against zonisamide metabolism (Ki) and unbound inhibitor concentration in blood (Iu) in clinical usage. Clearance of zonisamide was maximally estimated to decrease by 31%, 23% and 17% of the clearance without inhibitors i.e. ketoconazole, cyclospolin A and miconazole, respectively. Fluconazole and carbamazepine are estimated to decrease by 5-6% of the clearance of zonisamide. On the other hand, there may be lack of interaction of zonisamide metabolism by dihydroergotamine, itraconazole and triazolam in clinical dose range. CONCLUSION We demonstrated that: (1) zonisamide is metabolized by recombinant CYP3A4, CYP2C19 and CYP3A5, (2) the metabolism is inhibited to a variable extent by known CYP3A4/5 substrates and/or inhibitors in human liver microsomes, and (3) in vitro-in vivo predictive calculations suggest that several compounds demonstrating CYP3A4-affinity might cause in vivo drug-drug interactions with zonisamide.
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Affiliation(s)
- H Nakasa
- Division of Pharmacy, Chiba University Hospital, Japan
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26
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Abstract
The electrophoretic mobility of DNA fragments on denaturing polyacrylamide gel depends on various factors. One of these is the base composition of a single-stranded DNA (ssDNA). We confirmed that one strand and its complementary strand of polymerase chain reaction (PCR) products migrated with different mobilities in all alleles detected at 12 out of the 13 short tandem repeat (STR) loci studied. The mobility differences between complementary strands (MD) were also observed regardless of end-polishing with Pfu DNA polymerase. MD was therefore not influenced by additional nucleotides to each strand of the PCR products. We then analyzed the relation between MD and the base composition using one representative allele at each of the 13 loci. The results indicated that MD was affected by the adenine plus cytosine (AC) content in the ssDNA and was proportional to the values of the AC content divided by the guanine plus thymine (GT) content in the AC-rich strand (the proportion AC/GT). When the proportion AC/GT was well-balanced, MD decreased. The same tendency was observed even in the end-polished strands. In this study, the electrophoretic mobility of an ssDNA on denaturing polyacrylamide gels was shown to depend on the proportion AC/GT. Unless the same side of the PCR products is labelled in the context of a PCR-based STR typing, distinct alleles may be mistaken for identical ones because of the different mobility of complementary strands. Accordingly, the labelled strand should be described if only one strand of the PCR products is detected. When using an allelic ladder marker as a size standard, the labelled side should be unified between STR alleles and the allelic ladder alleles.
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Affiliation(s)
- H Saitoh
- Department of Legal Medicine, School of Medicine, Chiba University, Japan.
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27
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Kiuchi M, Adachi K, Kohara T, Teshima K, Masubuchi Y, Mishina T, Fujita T. Synthesis and biological evaluation of 2,2-disubstituted 2-aminoethanols: analogues of FTY720. Bioorg Med Chem Lett 1998; 8:101-6. [PMID: 9925439 DOI: 10.1016/s0960-894x(97)10188-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Desymmerization of symmetric FTY720 by substitution of different alkyl groups for one of the prochiral hydroxymethyl groups was performed. The size of the alkyl groups and the absolute configuration at quaternary carbon were important on immunosuppressive activity.
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Affiliation(s)
- M Kiuchi
- Research Laboratories, Yoshitomi Pharmaceutical Industries, Ltd., Saitama, Japan
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28
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Kamimura M, Tomita S, Kiuchi M, Fujiwara H. Tissue-specific and stage-specific expression of two silkworm ecdysone receptor isoforms -- ecdysteroid-dependent transcription in cultured anterior silk glands. Eur J Biochem 1997; 248:786-93. [PMID: 9342230 DOI: 10.1111/j.1432-1033.1997.t01-1-00786.x] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Previously, we isolated a cDNA clone for the ecdysone receptor B1 isoform of the silkworm, Bombyx mori (BmEcR-B1). Here we report the cloning of a cDNA that encodes the Bombyx ecdysone receptor A isoform (BmEcR-A) and mRNA expression of the two BmEcR isoforms during molting and metamorphosis. At larval-pupal transformation, mRNA expression of BmEcR-B1 was predominant in most tissues examined, including three larval tissues (midgut, epidermis, and fat body) and the wing imaginal disc. The anterior silk gland was the only tissue where BmEcR-A was predominant. These expression patterns were different from observations demonstrated in Drosophila. In the anterior silk gland, both EcR isoforms were expressed synchronously during the fifth larval instar, while expression of the A isoform preceded that of the B1 isoform by two days in the fourth instar. Precedence of BmEcR-A during the fourth instar and synchronization of both isoforms during the fifth instar were also observed in the middle and posterior silk glands, suggesting that transcription of BmEcR in the silk gland is regulated differently in these two instars. In the cultured anterior silk glands of day 0 of the fifth instar, transcription of BmEcR-A and BmEcR-B1 was induced dose dependently by more than 5 ng/ml 20-hydroxyecdysone. BmEcR-A and BmEcR-B1 mRNAs were induced within 2 h and 1 h, respectively, of the addition of 20-hydroxyecdysone. These results suggest that the increase of BmEcR mRNAs during the fifth instar is induced in vivo by a small increase in ecdysteroids.
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MESH Headings
- Amino Acid Sequence
- Animals
- Base Sequence
- Bombyx/genetics
- Bombyx/growth & development
- Bombyx/metabolism
- Cloning, Molecular
- Culture Techniques
- DNA, Complementary
- Drosophila melanogaster/chemistry
- Ecdysone/metabolism
- Ecdysterone/pharmacology
- Gene Expression Regulation, Developmental
- Insect Proteins/biosynthesis
- Insect Proteins/chemistry
- Insect Proteins/genetics
- Larva/metabolism
- Manduca/chemistry
- Metamorphosis, Biological
- Molecular Sequence Data
- Organ Specificity
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Steroid/biosynthesis
- Receptors, Steroid/chemistry
- Receptors, Steroid/genetics
- Sequence Homology, Amino Acid
- Transcription, Genetic
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Affiliation(s)
- M Kamimura
- National Institute of Sericultural and Entomological Science, Tsukuba, Japan
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29
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Kurosaki K, Saitoh H, Oota H, Watanabe Y, Kiuchi M, Ueda S. Combined polymorphism associated with a 3-bp deletion in the 5'-flanking region of a tetrameric short tandem repeat at the CYP19 locus. Nihon Hoigaku Zasshi 1997; 51:191-5. [PMID: 9301223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Allele frequencies for a tetrameric short tandem repeat locus, CYP19, were determined in 220 unrelated Japanese individuals. The frequency distribution was similar to that of a previous report. However, PCR amplification using two sets of primers suggested that one allele consisting of 7 TTTA repeats (the allele 7) was divided into two separate ones, 7P (standard) and 7(-3), which differed in length for 3 bp. Sequence analysis of the two alleles revealed that the smaller 7(-3) had a 3-bp deletion in the 5'-flanking region of the tetrameric repeat. The deletion was also observed as the allele 7(-3) in non-Japanese such as Caucasians and Africans; it was only found in a part of the allele 7 [7(-3)], but not in the other alleles, in all examined populations. In the Japanese population, the deletion was observed in 39.6% of the allele 7, or 24.8% of all of the alleles. When the STR polymorphism at the CYP19 locus was combined with the polymorphic deletion adjacent to the repeat region, the numerical indices of genetic polymorphisms (heterozygosity, polymorphism information content and the power of discrimination) in Japanese rose from 0.541, 0.46 and 0.723 to 0.723, 0.66 and 0.864, respectively. Accordingly, the combined polymorphism at the CYP19 locus can be considered appropriate for hereditary analysis in the field of forensic science.
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Affiliation(s)
- K Kurosaki
- Department of Legal Medicine, School of Medicine, Chiba University, Japan
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30
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Murakami T, Kiuchi M, Ito H, Matsui H, Honma M. Substitutions of alanine for cysteine at a reactive thiol site and for lysine at a pyridoxal phosphate binding site of 1-aminocyclopropane-1-carboxylate deaminase. Biosci Biotechnol Biochem 1997; 61:506-9. [PMID: 9095553 DOI: 10.1271/bbb.61.506] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
1-Aminocyclopropane-1-carboxylate (ACC) deaminase catalyzes the cyclopropane ring fragmentation and deamination of ACC. Replacement of cysteine with alanine at a reactive thiol site, Cys-162, of ACC deaminase did not affect the enzyme activity, in spite of the previous result that modification of Cys-162 caused complete loss of the enzyme activity. Substitution of glycine or valine for the cysteine residue gave a higher Km for ACC without a significant change of the K0, indicating that changes of the amino acid side chain had structural effects on substrate binding. Replacement of lysine with alanine at the pyridoxal phosphate (PLP) binding site of the ACC deaminase caused a lower content of PLP and loss of detectable activity of ACC deamination. This mutant enzyme, K51A, showed absorption peaks at 330 nm and 405 nm. The peak at 405 nm was shifted to about 425 nm by the addition of ACC, D-, L-alanine, and D-, L-serine. The formation of aldimine complexes indicated by the spectral shift was reversible. It is suggested that lysine 51 affects the formation of holoenzyme and is important in catalysis.
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Affiliation(s)
- T Murakami
- Faculty of Agriculture, Hokkaido University, Sapporo, Japan
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31
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Fujita T, Hirose R, Yoneta M, Sasaki S, Inoue K, Kiuchi M, Hirase S, Chiba K, Sakamoto H, Arita M. Potent immunosuppressants, 2-alkyl-2-aminopropane-1,3-diols. J Med Chem 1996; 39:4451-9. [PMID: 8893839 DOI: 10.1021/jm960391l] [Citation(s) in RCA: 111] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Several immunosuppressants, ISP-I [(2S,3R,4R)-(E)-2-amino-3,4-dihydroxy-2-(hydroxymethyl)-14-oxoeicos++ +-6-enoic acid, myriocin = thermozymocidin] and mycestericins A-G, were isolated from culture broths of Isaria sinclairii and Mycelia sterilia, respectively. In order to investigate structure-activity relationships, extensive modifications of ISP-I were conducted, and it was established that the fundamental structure possessing the immunosuppressive activity is a symmetrical 2-alkyl-2-aminopropane-1,3-diol. The tetradecyl, pentadecyl, and hexadecyl derivatives prolonged rat skin allograft survival in the combination of LEW donor and F344 recipient and were more effective than cyclosporin A. Among them, 2-amino-2-tetradecylpropane-1,3-diol hydrochloride, ISP-I-55, showed the lowest toxicity. ISP-I-55 is a promising lead compound for the development of effective immunosuppressants for organ transplantations and for the treatment of autoimmune diseases.
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Affiliation(s)
- T Fujita
- Faculty of Pharmaceutical Sciences, Kyoto University, Japan
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32
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Fujita T, Hamamichi N, Kiuchi M, Matsuzaki T, Kitao Y, Inoue K, Hirose R, Yoneta M, Sasaki S, Chiba K. Determination of absolute configuration and biological activity of new immunosuppressants, mycestericins D, E, F and G. J Antibiot (Tokyo) 1996; 49:846-53. [PMID: 8931716 DOI: 10.7164/antibiotics.49.846] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Mycestericins D, E, F and G were isolated from the culture broth of Mycelia sterilia ATCC 20349 as potent immunosuppressants. Mycestericins F and G were identical with dihydromycestericins D and E, respectively. Their absolute configurations were determined by use of the modified MOSHER'S method and by comparison of the CD spectra of their benzoate derivatives with those of synthetic analogs. Mycestericins D, E, F and G suppressed the proliferation of lymphocytes in the mouse allogeneic mixed lymphocyte reaction.
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Affiliation(s)
- T Fujita
- Faculty of Pharmaceutical Sciences, Kyoto University, Japan
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33
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Kadowaki K, Ito T, Kiuchi M, Takahashi H, Nagata N, Makio A, Terakawa N. [A case of pena-shokeir syndrome without response to vibratory acoustic stimulation]. Nihon Sanka Fujinka Gakkai Zasshi 1996; 48:289-92. [PMID: 8936116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- K Kadowaki
- Department of Obstetrics and Gynecology, Tottori University, Yonago
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Kurosaki K, Oota H, Saitoh H, Kiuchi M, Ueda S. Sequence variation found in the flanking region of a trimeric short tandem repeat at the PLA2 locus: its considerable effect on estimating alleles. Nihon Hoigaku Zasshi 1996; 50:1-5. [PMID: 8851080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Amplified alleles at the PLA2 short tandem repeat locus were sequenced and analyzed using different combinations of the PCR primer. When changing one side of the primers from the previous design to our original one, additional alleles, which had been previously hidden, could be newly detected in two out of 60 DNA samples of unrelated Japanese individuals. The sequence data revealed both 'hidden alleles' to be accompanied by a 3-bp deletion in the 5'-flanking region of the trimeric short tandem repeat. The position of the deletion corresponded to the exact 3' end of the primer, which had been formerly used. In the present case, both of the base numbers, which constituted the core repeat unit and which were deleted in the 'hidden alleles', were equal. Therefore, it was impossible to distinguish an allele from that with not only an additional trimeric repeat but a 3-bp deletion without the sequence analysis. This result indicates that the estimated allele size does not always reflect the difference in the repeat number even if the alleles regularly differ in size by one repeat unit. Moreover, this study suggests the presence of apparent homozygotes, of which the fellow of the heterozygous alleles is hidden by an unsuccessful amplification due to the sequence variation.
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Affiliation(s)
- K Kurosaki
- Department of Legal Medicine, Chiba University, Japan
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35
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Mera N, Ohmori S, Itahashi K, Kiuchi M, Igarashi T, Rikihisa T, Kitada M. Immunochemical evidence for the occurrence of Mu class glutathione S-transferase in human fetal livers. J Biochem 1994; 116:315-20. [PMID: 7822249 DOI: 10.1093/oxfordjournals.jbchem.a124525] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Immunoblot analysis showed that alpha-class glutathione S-transferase (GST), which is one of the major forms in adult human liver, was expressed in human fetal liver. Mu-class GST was also expressed in fetal liver. The majority of mu-class GST expressed in adult liver consisted of a subunit with a molecular weight of 27 kDa on sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), whereas two subunits of 27 and 26 kDa were detected in fetal liver as proteins immunochemically related to mu-class GST. On reverse-phase HPLC, these two subunits cross-reactive with antibodies to rat GST 3-3 in fetal liver were indistinguishable from each other in their retention time; though, they could be separated by chromatofocusing analysis. The molecular weights of GSTs immunochemically related to rat GST 3-3, eluted at pH 7.1, 6.4, and 5.7, were 27, 27 and 26, and 26 kDa, respectively. In addition, the N-terminal amino acid sequence of these subunits suggested that GSTs related to rat GST 3-3 expressed in fetal liver may be homodimeric and heterodimeric proteins. As expected, pi-class GST was found to be a major form of GST in fetal liver but not in adult liver. In contrast, the GST immunochemically related to rat GST Yrs-Yrs, which is classified as theta-class GST, was detected in adult liver but not in fetal liver. These results indicate that several isoenzymes of GST are expressed in human fetal liver, but they are not the same as those in adult liver.
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Affiliation(s)
- N Mera
- Laboratory of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Chiba University
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36
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Sasaki S, Hashimoto R, Kiuchi M, Inoue K, Ikumoto T, Hirose R, Chiba K, Hoshino Y, Okumoto T, Fujita T. Fungal metabolites. Part 14. Novel potent immunosuppressants, mycestericins, produced by Mycelia sterilia. J Antibiot (Tokyo) 1994; 47:420-33. [PMID: 8195042 DOI: 10.7164/antibiotics.47.420] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Mycestericins A, B, C, D and E were isolated from the culture broth of Mycelia sterilia ATCC 20349 along with thermozymocidin (= myriocin). Their structures were elucidated on the basis of spectroscopic studies and chemical evidence. The acetate of mycestericin C was identical with the acetate of 6,7-dihydromyriocin. Mycestericins suppressed the proliferation of lymphocytes in the mouse allogeneic mixed lymphocyte reaction, with a potency similar to that of myriocin.
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Affiliation(s)
- S Sasaki
- Faculty of Pharmaceutical Sciences, Kyoto University, Japan
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37
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Yokochi T, Fujii Y, Nakashima I, Asai J, Kiuchi M, Kojima K, Kato N. A murine model of experimental autoimmune lens-induced uveitis using Klebsiella O3 lipopolysaccharide as a potent immunological adjuvant. Int J Exp Pathol 1993; 74:573-82. [PMID: 8292555 PMCID: PMC2002260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Experimental autoimmune uveitis and finally panophthalmitis could be produced in mice by repeated immunization of syngeneic eyeball extract mixed with Klebsiella O3 lipopolysaccharide (KO3 LPS) as a powerful immunological adjuvant. No ocular lesions were produced in mice given eyeball extract emulsified in complete Freund's adjuvant (CFA), KO3 LPS alone or eyeball extract alone. Histopathological changes in the ocular lesions at the early stage after the second or tertiary immunization were characterized by infiltration with inflammatory cells in the ciliary body and iris. The iridocyclitis was followed by extensive infiltration of polymorphonuclear leucocytes (PMN) into the cornea, lens and the surrounding tissues after repeated immunization. Finally, these areas were replaced by granulomatous tissues infiltrated with mononuclear cells. On the other hand, the structure of the retina and sclera was partially preserved. Those mice exhibited production of autoantibodies and development of the delayed-type hypersensitivity (DTH) to syngeneic eyeball extract. Moreover, ocular lesions could be produced in normal recipient mice by transfer of sensitized lymphocytes from hyperimmunized mice. Therefore, it was suggested that the ocular lesions produced by repeated immunization with the mixture of eyeball extract and KO3 LPS were due to the autoimmune mechanism. This might be useful to model immunological phenomena in the pathogenesis of human phacoantigenic uveitis.
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Affiliation(s)
- T Yokochi
- Department of Bacteriology, Nagoya University School of Medicine, Aichi, Japan
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38
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Ohmori S, Horie T, Guengerich FP, Kiuchi M, Kitada M. Purification and characterization of two forms of hepatic microsomal cytochrome P450 from untreated cynomolgus monkeys. Arch Biochem Biophys 1993; 305:405-13. [PMID: 8373178 DOI: 10.1006/abbi.1993.1439] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Two forms of cytochrome P450, referred to as P450 CMLb and P450 CMLc, were purified and characterized from hepatic microsomes of untreated cynomolgus monkeys (Macaca irus). The final preparations were apparently homogeneous as judged by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The minimum molecular weights of P450 CMLb and P450 CMLc estimated from the mobilities on the gel were 48 and 50 kDa, respectively. The N-terminal amino acid sequences of P450 CMLb and P450 CMLc (first 13 residues) were identical, respectively, with those of P450 FI isolated from baboons and P450 MK-2, which has been characterized as a P450 3A enzyme in cynomolgus monkeys. P450 CMLb showed coumarin 7-hydroxylation and 7-ethoxycoumarin O-deethylation activities. This P450 enzyme reacted with anti-P450 2A6 antibody and acts as a coumarin 7-hydroxylase in hepatic microsomes. On the basis of these results P450 CMLb was classified into the 2A subfamily. P450 CMLb is expressed constitutively as one of the minor forms of P450 in liver microsomes of untreated cynomolgus monkeys and is inducible by phenobarbital. P450 CMLc reacted with anti-P450 3A4 antibody and hydroxylated testosterone at the 6 beta-position. The testosterone 6 beta-hydroxylation activities in hepatic microsomes of cynomolgus monkeys, common squirrel monkeys, and humans were strongly inhibited by the anti-P450 CMLc antibody. These results demonstrate that this P450 enzyme is in the P450 3A subfamily.
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Affiliation(s)
- S Ohmori
- Division of Pharmacy, Chiba University Hospital, Faculty of Medicine, Japan
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Nakasa H, Komiya M, Ohmori S, Rikihisa T, Kiuchi M, Kitada M. Characterization of human liver microsomal cytochrome P450 involved in the reductive metabolism of zonisamide. Mol Pharmacol 1993; 44:216-21. [PMID: 8341274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Zonisamide (1,2-benzisoxazole-3-methanesulfonamide) was metabolized to 2-sulfamoylacetylphenol (SMAP) in human liver microsomes under anaerobic conditions. The formation of SMAP was remarkably inhibited by cimetidine, n-octylamine, ketoconazole, and carbon monoxide, indicating that a cytochrome P450 is involved in the metabolism of zonisamide to SMAP in human liver microsomes. The SMAP-producing activity did not correlate with the spectrally determined amount of cytochrome P450. In contrast, the SMAP-producing activity from zonisamide correlated closely with the activity of testosterone 6 beta-hydroxylase (r2 = 0.96) and correlated slightly but significantly with the activity of imipramine 2-hydroxylase (r2 = 0.28), but not with those of aniline hydroxylase (r2 = 0.09) or benzphetamine N-demethylase (r2 = 0.20). In addition, immunoquantitation of cytochrome P450 enzymes in 21 human liver microsomal samples revealed that SMAP formation correlated closely with the amount of P450 3A enzyme and correlated moderately well with that of P450 2D6 but not with that of P450 2C enzyme in human liver microsomes. P450 3A4 exhibited SMAP-producing activity in a reconstituted monooxygenase system. The metabolism of zonisamide to SMAP was almost completely inhibited by anti-P450 3A4 antibody but not by anti-P450 2C9 or anti-P450 2D6 antibodies, suggesting that the amount of P450 3A enzyme may be a major factor influencing the level of metabolism of zonisamide to SMAP in human liver microsomes.
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Affiliation(s)
- H Nakasa
- Division of Pharmacy, Chiba University Hospital, Faculty of Medicine, Chiba University, Japan
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Ohmori S, Takeda S, Rikihisa T, Kiuchi M, Kanakubo Y, Kitada M. Studies on cytochrome P450 responsible for oxidative metabolism of imipramine in human liver microsomes. Biol Pharm Bull 1993; 16:571-5. [PMID: 8364509 DOI: 10.1248/bpb.16.571] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The activity of imipramine 2-hydroxylase highly correlated with that of desipramine 2-hydroxylase but not with that of desipramine N-demethylase. The correlation was also found between N-demethylation and 2-hydroxylation when imipramine was used as a substrate, whereas no correlation was observed between them when desipramine was used in place of imipramine. Both activities of desipramine and imipramine 2-hydroxylase were markedly inhibited by quinidine but not by quinine. Although the activity of imipramine N-demethylase was slightly inhibited by both quinidine and quinine, the activity of desipramine N-demethylase was unaffected under the same conditions. The activity of imipramine N-demethylase was roughly correlated with the amounts of P450 3A4 immunochemically determined and the activities of testosterone 6 beta-hydroxylase in human liver microsomes. The P450 3A4 catalyzed imipramine N-demethylation much more efficiently than 2-hydroxylation in a reconstituted system, whereas neither N-demethylation nor 2-hydroxylation of desipramine was catalyzed by P450 3A4. The activity of imipramine N-demethylase was inhibited, to various extents, by anti-P450 3A4 antibodies in human liver microsomes. Taking together these and other results, it is suggested that P450 3A4, other than P450 2Cmp, also partly contributes to N-demethylation of imipramine, depending on human liver microsomes.
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Affiliation(s)
- S Ohmori
- Faculty of Pharmaceutical Sciences, Chiba University, Japan
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41
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Kiuchi M, Kimura Y. Unusual intravascular hemolysis in a case of fatal hypothermia. Am J Forensic Med Pathol 1992; 13:222-4. [PMID: 1476127 DOI: 10.1097/00000433-199209000-00011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A 55-year-old man was discovered dead inside a deep freezer maintained at -40 degrees C. After consuming a large quantity of alcohol, the man had become trapped in the freezer approximately 11 h before his body was found. The body was still frozen at the time of autopsy, but subcutaneous dendriform vessel repletion phenomenon was observed on the upper and lower extremities. Although this intravascular hemolysis resembled that which develops during putrefaction, in this case it was thought to be due to pooling and freezing of blood in subcutaneous vessels. Contributory factors included alcohol ingestion, vasodilation following vasoconstriction, vasomotor paralysis, and red cell sludging. Hemolysis followed freezing of the blood. When such phenomena are observed in a corpse, exposure to extreme cold should be suspected.
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Affiliation(s)
- M Kiuchi
- Department of Legal Medicine, School of Medicine, Chiba University, Japan
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Abstract
To assess whether quality of life (QOL) could be employed as an outcome measure of health programs for elderly populations, we evaluated the relationship between subjective assessment of QOL ("morale scale") and objective constituents of active life such as activities of daily living (ADL), instrumental ADL (IADL) and work status along with determination of active life expectancy (ALE) in a rural district in Japan (n = 13,529). The QOL scale was positively correlated with ADL, IADL and work status but not with age. Validity and test-retest reliability were satisfactory as regards the small subsamples of respondents. ALE of the elderly aged 60 to 64 was 15.2 years, while their life expectancy was 27.1 years. Factors associated with lower ADL included age, lower IADL and joblessness. The QOL measurement and the objective variables can be incorporated into an assessment of the health status of the elderly in addition to conventional indices based on mortality.
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Affiliation(s)
- I Kai
- Department of Public Health, Teikyo University, Tokyo
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43
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Kiuchi M, Kawachi Y, Tabata K, Kimura Y. [Basic studies on abdominal injuries. Part 1: Degree of depression of abdominal wall by compression]. Nihon Hoigaku Zasshi 1990; 44:489-95. [PMID: 2150423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The degree of depression of the abdominal surface by compression was measured in 121 healthy adult male having an average age of 20.4 years. Three disks of different sizes (10, 25, and 45 mm in diameter) were attached to the edge of the baresthesiometer, and pressures of 1, 3 and 5 kg were applied to the 10 mm disk, and 1, 3, 5, and 7 kg to the other disks. The regions tested were the medial abdomen approximately 2 cm above the umbilicus and the left and right flanks at the level of umbilicus. The higher the pressure administered, the greater the depression formed on each disk. Severe pain occurred in the nonanesthetized person, and it was difficult to increase the pressure to a higher level than 7 kg. At each pressure, the smallest disk produced larger depression than did the other two. The degree of depression was related to the total pressure administered rather than to the amount of pressure per unit area. The distribution of measured value was shown to be normal. After the largest depression for each region had been determined, a pressure of 7 kg was imposed on the 25-mm disk. On the medial abdomen, the anatomical position generated a mean depression of 6.3 cm, and the spine position a depression of 5.04 cm. On the flank, mean value of the depression was approximately 5.7 cm, and did not differ between the anatomical and supine positions and between the right and left flanks.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- M Kiuchi
- Department of Legal Medicine, School of Medicine, Chiba University, Japan
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44
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Kiuchi M. [Informed consent for clinician]. Kokyu To Junkan 1988; 36:1315-9. [PMID: 3249846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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45
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Abstract
An apparently healthy 80-day-old boy died suddenly for no apparent reason. The autopsy revealed that the patient had had congenital asplenia, extensive cardiovascular anomalies, and other organ malformations, including trisegmented lungs, hypoplasia of the corpus callosum and cranial bones, a symmetrical liver, accessory hepatic tissue in the adrenal glands, malrotation of the intestine, and hypoplasia of the greater omentum.
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Affiliation(s)
- M Kiuchi
- Department of Legal Medicine, School of Medicine, Chiba University, Japan
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46
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Arishima K, Kiuchi M, Yamamoto M, Eguchi Y, Mochizuki K. Evidence for no relationship of the pineal activity with the neonatal shrinkage of Leydig cells in the rat. Experientia 1984; 40:1155-7. [PMID: 6489508 DOI: 10.1007/bf01971470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The collective volume of Leydig cells in prenatally pinealectomized newborn rats declined as sharply as in intact newborn rats. Also, the collective volume in pups born in the dark declined in a fashion similar to that in pups born in the light. The results indicate that neither the pineal gland nor the light is responsible for the neonatal shrinkage of Leydig cells.
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Yamamoto M, Kiuchi M, Arishima K, Eguchi Y, Mochizuki K. Does estrogen influence the development of Leydig cells in fetal and early neonatal rats? Nihon Juigaku Zasshi 1983; 45:803-6. [PMID: 6672407 DOI: 10.1292/jvms1939.45.803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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48
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Kojima K, Harada T, Suzuki M, Komiyama K, Kiuchi M, Karaki T, Ichikawa H. [Experimental and clinical studies of drug therapy in diabetic retinopathy (author's transl)]. Nippon Ganka Gakkai Zasshi 1978; 82:540-5. [PMID: 152052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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49
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Kojima K, Suzuki M, Harada T, Kiuchi M, Karaki T, Ichikawa H. [Classification of diabetic retinopathy (author's transl)]. Nippon Ganka Gakkai Zasshi 1978; 82:354-62. [PMID: 676937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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50
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Kiuchi M, Kuroda H. Lipopolysaccharide-like substance isolated by mycelia of Cochliobolus miyabeanus. Chem Pharm Bull (Tokyo) 1978; 26:343-9. [PMID: 565261 DOI: 10.1248/cpb.26.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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