576
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Matsumoto T, Takanohashi M, Okubo Y, Suzuki M, Suzuki S. Growth-inhibitory activity of the D-mannan of Saccharomyces cerevisiae X2180-1A-5 mutant strain against mouse-implanted sarcoma 180 and Ehrlich-carcinoma solid tumor. Carbohydr Res 1980; 83:363-70. [PMID: 6996813 DOI: 10.1016/s0008-6215(00)84548-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The D-mannan of Saccharomyces cerevisiae X2180-1A-5 mutant strain, which possesses a main chain composed of alpha-(1 yields 6) linked D-mannopyranosyl residues and a small proportion of branches composed of alpha-(1 yields 2)- and alpha-(1 yields 3)-linked D-mannopyranosyl residues, showed strong growth-inhibitory activity against mouse-implanted Sarcoma 180 and Ehrlich-carcinoma solid tumor. The observation that the level of this activity was nearly identical with that of the D-mannan of a wild-type strain of bakers' yeast, which possesses a high proportion of branches composed of alpha-(1 yields 2)-and alpha-(1 yields 3)-linked D-mannopyranosyl residues, suggests that the branches are not essential for antitumor activity. The partial acid-degradation products of both D-mannans, the molecular weight of which was one-third of that of each parent D-mannan, had only one half of the antitumor activity of the parent D-mannans. This suggests that molecular size is the most important factor for the differences in acitvity of the polysaccharides of wild and mutant strains.
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577
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Yoshida A, Yamaguchi H, Okubo Y. Genetic mechanism of cis-AB inheritance. I. A case associated with unequal chromosomal crossing over. Am J Hum Genet 1980; 32:332-8. [PMID: 6770676 PMCID: PMC1686052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
In contradiction to the general Mendelian inheritance of blood group ABO expression, the A and B characteristics are inherited together from one parent in the rare Cis-AB phenotype. Since the synthesis of blood group A and B substances are controlled by N-acetylgalactosoaminyltransferase (A-enzyme) and galactosyltransferase (B-enzyme), the genetic mechanism of Cis-AB expression may be elucidated by examining the characteristics of A- and B-enzymes in Cis-AB plasma. Biochemical study reveals that the examined Cis-AB plasma contains two separable enzyme components: one with kinetic properties similar to those of common A2-enzyme, but differing from A1-enzyme, and another with kinetic characteristics similar to those of common B-enzyme. Therefore, Cis-AB expression, at least in the case examined, is due to unequal crossing over, producing a chromosome with alleles for A2- and B-enzymes, rather than to a structural mutation in A or B alleles producing a single abnormal enzyme with bifunctional activity.
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578
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Fukui H, Takase T, Ikari H, Murakami Y, Okubo Y, Nakamura K. Factor VIII procoagulant activity, factor VIII related antigen and von Willebrand factor in newborn cord blood. Br J Haematol 1979; 42:637-46. [PMID: 314304 DOI: 10.1111/j.1365-2141.1979.tb01176.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The mean level of factor VIII procoagulant acitivity (VIII:C) and factor VIII related antigen (VIIIR:AG) was normal in 100 newborn cord plasmas, whereas that of von Willebrand factor (VIIIR:WF) activity was slightly lower than normal. On crossed immunoelectrophoresis, 20 of 50 newborn infants had an increased anodal mobility of VIIIR:AG. When the cord plasma showing an abnormal electrophoretic pattern was mixed with normal plasma, two precipitation peaks with a broad base were found. Similar mixing experiments with the abnormal cord plasma and plasma from a patient with atypical von Willebrand's disease did not normalize the electrophoretic mobility of VIIIR:AG. Gel filtration of the cord plasma with an abnormal electrophoretic pattern of VIII:AG, showed that the three activities were all detected at the position corresponding to a molecular weight of about 800 000. The results suggest the presence of qualitative abnormalities of the factor VIII molecule in half of full-term newborn cord plasma.
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579
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Abstract
A Japanese family with two siblings of phenotype i is presented. Both had a past history of surgical treatment for congenital cataract. In Japan, 18 individuals of phenotype i, including our case, have been found in ten unrelated families. Seventeen of them had congenital cataract. Cataract was not found in any of the 45 phenotype I members in these families. It is briefly discussed why these two linked and quite rare genes were found in combination only in Japanese persons.
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580
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Gavin J, Daniels G, Yamaguchi H, Okubo Y, Seno T. The Red Cell Antigen once Called Levay is the
Antigen Kp^c of the Kell System. Vox Sang 1979. [DOI: 10.1159/000460424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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581
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Okubo Y, Honma Y, Suzuki S. Relationship between phosphate content and serological activities of the mannans of Candida albicans strains NIH A-207, NIH B-792, and J-1012. J Bacteriol 1979; 137:677-80. [PMID: 368039 PMCID: PMC218502 DOI: 10.1128/jb.137.1.677-680.1979] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The mannans from Candida albicans strains NIH A-207 (serotype A), NIH B-792 (serotype B), and J-1012 (serotype C) were fractionated on a column of diethylaminoethyl-Sephadex into five subfractions containing different amounts of phosphate. Antibody-precipitating activities of the mannan subfractions of strains NIH A-207 and NIH B-792 were proportional to their phosphate content, while those of strain J-1012 did not show regularly proportional precipitin activity. A similar tendency was also observed in the cross-reaction between the mannan su,fractions of strains NIH A-207 and J-1012 and their heterologous antisera. The mannans of strain NIH B-792 showed lower cross-reactivities against antisera of strains NIH A-207 and NIH B-792, i.e., only two subfractions containing larger amounts of phosphate were able to react with these antisera.
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582
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Gavin J, Daniels GL, Yamaguchi H, Okubo Y, Seno T. The red cell antigen once called Levay is the antigen Kpc of the Kell system. Vox Sang 1979; 36:31-3. [PMID: 425421 DOI: 10.1111/j.1423-0410.1979.tb04396.x] [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: 12/15/2022]
Abstract
The antigen corresponding to the 'new' allele Kpc postulated in a Japanese family is the low frequency antigen Levay recognized in England 33 years ago.
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583
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Abstract
Four Kp(a-b-) Japanese sisters, the product of a consanguineous mating, have otherwise normal Kell antigens. Kpc, a 'new' allele of Kpa and Kpb is the most probable background.
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584
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Takeda N, Okubo Y, Ichikawa T, Suzuki S. Cross-reaction between the mycelial galactomannas of three Hormodendrum strains and the mannans of two Candida albicans strains of different serotypes, A and B. Infect Immun 1979; 23:146-9. [PMID: 84792 PMCID: PMC550701 DOI: 10.1128/iai.23.1.146-149.1979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Cross-reactivity between galactomannans of three representative Hormodendrum strains, H. pedrosoi IFO 6071, H. compactum IFO 6726, and H. dermatitidis IFO 6421, and the mannans of two Candida strains, C. albicans NIH A-207 (serotype A) and C. albicans NIH B-792 (serotype B), were investigated by means of agar-gel double diffusion, quantitative preciptin reaction, and passive cutaneous anaphylaxis. The following results were obtained. (i) Antisera to whole cells of three Hormodendrum strains were completely inactive in all in vitro antigen-antibody reactions to mannans of C. albicans NIH A-207 and C. albicans NIH B-792, whereas antisera to both C. albicans strains were found to be cross-reactive against the three Hormodendrum galactomannans. (ii) The results of cross-passive cutaneous anaphylaxis tests using guinea pigs sensitized with antiserum of three Hormodendrum and two Candida seemed to be consistent with those of the vitro assay. (iii) The reactivities of the corresponding acid-resistant core moieties of the three Hormodendrum galactomannas against two anti-C. albicans sera were nearly identical to those of the parent galactomannans in both in vitro and in vivo tests.
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585
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Yamaguchi H, Okubo Y, Seno T, Matsushita K, Daniels G. A ‘New’ Allele, Kp^c at the Kell Complex Locus. Vox Sang 1979. [DOI: 10.1159/000460423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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586
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Mukumoto Y, Konishi H, Ito K, Seno T, Okubo Y. An example of naturally occurring anti-Kell (K1) in a Japanese male. Vox Sang 1978; 35:275-6. [PMID: 695444 DOI: 10.1111/j.1423-0410.1978.tb02935.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
'Naturally occurring' anti-Kell (K1) was found in a Japanese male who has never received a transfusion. The antibody agglutinated K:1 cells suspended in saline at 4 and 22 degrees C as well as cells suspended in albumin and treated with proteolytic enzymes.
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587
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Okubo Y, Ichikawa T, Suzuki S. Relationship between phosphate content and immunochemical properties of subfractions of bakers' yeast mannan. J Bacteriol 1978; 136:63-8. [PMID: 361709 PMCID: PMC218632 DOI: 10.1128/jb.136.1.63-68.1978] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The mannan of bakers' yeast (Saccharomyces cerevisiae) was fractionated on a column of diethylaminoethyl-Sephadex into five subfractions. Phosphate content of these mannan subfractions was proportional to the concentration of NaCl solutions used in the chromatographic separation. Quantitative precipitin reactions showed that the serological reactivities of the subfractions were proportional to the content of phosphate. The result of acetolysis study showed that the amounts of mannotetraose and phosphate-containing oligosaccharide fractions increased proportionally to the acidity, whereas the amount of mannose decreased inversely. The results from quantitative precipitin reaction tests and acetolysis study demonstrated that both phosphate contents and multiplicity of branching moieties of mannan subfractions increased proportionally, i.e., micro-heterogeneity concerning the acidity comprised in the parent bulk mannan is not attributable merely to the coexistence of molecular species containing different amounts of phosphate but also to the presence of more of the branching moieties.
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588
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Okubo Y. [Home nursing and activities of public health nursing at Yokohama City: activities of the public health office preceding the city program]. [HOKENFU ZASSHI] THE JAPANESE JOURNAL FOR PUBLIC HEALTH NURSE 1978; 34:384-6. [PMID: 248544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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589
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Kotaka S, Okubo Y, Ase Y, Watanabe I. [Three cases of bilateral acoustic neurinoma (author's transl)]. NIHON JIBIINKOKA GAKKAI KAIHO 1977; 80:920-9. [PMID: 412934 DOI: 10.3950/jibiinkoka.80.920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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590
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Kosegawa K, Fukushima N, Okubo Y, Okano Y, Takahashi T. [A case of allergic bronchopulmonary aspergillosis (author's transl)]. NIHON KYOBU SHIKKAN GAKKAI ZASSHI 1976; 14:743-7. [PMID: 1035699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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591
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Okubo Y, Komatsu N. [Effect of shizophyllan on experimental candidiasis in mice]. Nihon Saikingaku Zasshi 1975; 30:262. [PMID: 129582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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592
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Okubo Y, Tomita T, Yamano J, Nagao Y, Yoshimura A. [Natural antibody absorption of immune serums by Escherichia coli]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1974; 22:185. [PMID: 4615190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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593
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Nakamura T, Okubo Y, Ogawa M, Okada K, Fujii M. Bacteriological and epidemiological approach to prophylaxy for enteric infection. VI. Isolation of pathogenic bacteria from diarrheal patients during five years (1968-1972). THE KITASATO ARCHIVES OF EXPERIMENTAL MEDICINE 1974; 47:23-36. [PMID: 4449160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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594
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Tanoue K, Onozawa Y, Adachi Y, Kashiwagi H, Okubo Y. [Studies on megakaryocytes and platelets in three cases of primary thrombocythemia (author's transl)]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1974; 15:447-86. [PMID: 4471912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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595
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Yamaguchi H, Okubo Y, Ogawa Y, Tanaka M. Japanese families with group O and B red cells agglutinable by Dolichos biflorus extract. Vox Sang 1973; 25:361-9. [PMID: 4796233 DOI: 10.1111/j.1423-0410.1973.tb04384.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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596
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Okubo Y. [Experimental use of x-ray for observation of intervertebral foramen in abnormality of the cervical vertebrae: use of orthopantomography of curved surface]. RINSHO HOSHASEN. CLINICAL RADIOGRAPHY 1973; 18:443-7. [PMID: 4737945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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597
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Okubo Y. [Panoramic tomography for the diagnosis of cervical vertigo--observation by orthopantomography]. NIHON JIBIINKOKA GAKKAI KAIHO 1973; 76:679-701. [PMID: 4737576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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598
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Yamaguchi H, Okubo Y, Ogawa Y, Tanaka M. Japanese Families with Group O and B Red Cells Agglutinable by Dolichos biflorus Extract. Vox Sang 1973. [DOI: 10.1159/000460564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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599
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Okubo Y. Basal metabolism and other physiological changes in wintering members of Japanese antarctic research expedition 1968-1969. THE BULLETIN OF TOKYO MEDICAL AND DENTAL UNIVERSITY 1972; 19:245-69. [PMID: 4508343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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600
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Honjo S, Okubo Y. [Determination of urinary gold by atomic absorption spectrometry following administration of gold preparation]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 1971; 19:Suppl:430. [PMID: 5168117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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