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Mishina T, Chiu MC, Hashiguchi Y, Oishi S, Sasaki A, Okada R, Uchiyama H, Sasaki T, Sakura M, Takeshima H, Sato T. Massive horizontal gene transfer and the evolution of nematomorph-driven behavioral manipulation of mantids. Curr Biol 2023; 33:4988-4994.e5. [PMID: 37863060 DOI: 10.1016/j.cub.2023.09.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 07/20/2023] [Revised: 08/21/2023] [Accepted: 09/21/2023] [Indexed: 10/22/2023]
Abstract
To complete their life cycle, a wide range of parasites must manipulate the behavior of their hosts.1 This manipulation is a well-known example of the "extended phenotype,2" where genes in one organism have phenotypic effects on another organism. Recent studies have explored the parasite genes responsible for such manipulation of host behavior, including the potential molecular mechanisms.3,4 However, little is known about how parasites have acquired the genes involved in manipulating phylogenetically distinct hosts.4 In a fascinating example of the extended phenotype, nematomorph parasites have evolved the ability to induce their terrestrial insect hosts to enter bodies of water, where the parasite then reproduces. Here, we comprehensively analyzed nematomorphs and their mantid hosts, focusing on the transcriptomic changes associated with host manipulations and sequence similarity between host and parasite genes to test molecular mimicry. The nematomorph's transcriptome changed during host manipulation, whereas no distinct changes were found in mantids. We then discovered numerous possible host-derived genes in nematomorphs, and these genes were frequently up-regulated during host manipulation. Our findings suggest a possible general role of horizontal gene transfer (HGT) in the molecular mechanisms of host manipulation, as well as in the genome evolution of manipulative parasites. The evidence of HGT between multicellular eukaryotes remains scarce but is increasing and, therefore, elucidating its mechanisms will advance our understanding of the enduring influence of HGT on the evolution of the web of life.
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Affiliation(s)
- Tappei Mishina
- Laboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 6500047, Japan.
| | - Ming-Chung Chiu
- Department of Biology, Graduate School of Sciences, Kobe University, Kobe 6578501, Japan; Department of Entomology, National Taiwan University, Taipei 50007, Taiwan
| | - Yasuyuki Hashiguchi
- Department of Biology, Faculty of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki 5690801, Japan.
| | - Sayumi Oishi
- Department of Biology, Graduate School of Sciences, Kobe University, Kobe 6578501, Japan
| | - Atsunari Sasaki
- Department of Biology, Graduate School of Sciences, Kobe University, Kobe 6578501, Japan
| | - Ryuichi Okada
- Department of Biology, Graduate School of Sciences, Kobe University, Kobe 6578501, Japan
| | - Hironobu Uchiyama
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo 1568502, Japan
| | - Takeshi Sasaki
- Graduate School of Bioresource Development, Tokyo University of Agriculture, Atsugi 2430034, Japan
| | - Midori Sakura
- Department of Biology, Graduate School of Sciences, Kobe University, Kobe 6578501, Japan
| | - Hirohiko Takeshima
- Research Center of Marine Bioresources, Department of Marine Bioscience, Fukui Prefectural University, 49-8-2, Katsumi, Obama, Fukui Prefecture 9170116, Japan
| | - Takuya Sato
- Department of Biology, Graduate School of Sciences, Kobe University, Kobe 6578501, Japan; Center for Ecological Research, Kyoto University, Otsu 5202113, Japan.
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Mishina T, Nomoto K, Machida Y, Hariu T, Watanabe K. Origin of scarlet gynogenetic triploid Carassius fish: Implications for conservation of the sexual-gynogenetic complex. PLoS One 2022; 17:e0276390. [PMID: 36264937 PMCID: PMC9584449 DOI: 10.1371/journal.pone.0276390] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 10/05/2022] [Indexed: 11/22/2022] Open
Abstract
Conservation of sperm-dependent asexual (gynogenetic) species is challenging due to their complicated ecological dynamics, which requires the stable coexistence with their sperm-providing sexual relatives, who often share similar niches. A symbolic but vulnerable gynogenetic animal is the scarlet Carassius fish, or Hibuna, which is mainly found in Lake Harutori on Hokkaido, Japan. Although Hibuna in Lake Harutori has been protected as a symbol of the Natural Monument of Japan, it has recently suffered population decline. To establish an effective conservation strategy for Hibuna, we investigated its origin, reproductive mode, and genetic diversity, with reference to the surrounding wild populations, using nuclear microsatellites and mitochondrial gene sequences. Our genetic analyses revealed that the main ploidy of Hibuna was triploid or tetraploid, and it reproduces gynogenetically. However, no co-existing sexual diploid Carassius was detected among our samples, suggesting that the sexual diploids and the gynogenetic population including Hibuna would be at risk of co-extirpation. In addition, Hibuna showed high genetic/clonal diversity and most Hibuna had nonindigenous mitochondrial haplotypes that are mostly identical to those reported from goldfish. These results indicate that Hibuna most probably originated from hybridization between indigenous gynogenetic triploids and goldfish introduced about 100 years ago, involving rare sexual reproduction. This spontaneous long-term field experiment exemplifies the recently documented diversification process of gynogenetic Carassius via complex interploidy gene flow. Although the priority to be placed on the conservation of Hibuna is controversial, the maintenance of gynogenetic Carassius, including Hibuna, requires strategic conservation of sexual populations.
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Affiliation(s)
- Tappei Mishina
- Laboratory of Animal Ecology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, Japan
- Laboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research, Chuo-ku, Kobe, Japan
- * E-mail:
| | | | | | - Tsutomu Hariu
- Kushiro Public University of Economics, Kushiro, Hokkaido, Japan
| | - Katsutoshi Watanabe
- Laboratory of Animal Ecology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, Japan
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Mishina T, Takeshima H, Takada M, Iguchi K, Zhang C, Zhao Y, Kawahara-Miki R, Hashiguchi Y, Tabata R, Sasaki T, Nishida M, Watanabe K. Interploidy gene flow involving the sexual-asexual cycle facilitates the diversification of gynogenetic triploid Carassius fish. Sci Rep 2021; 11:22485. [PMID: 34795357 PMCID: PMC8602411 DOI: 10.1038/s41598-021-01754-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/28/2021] [Indexed: 11/23/2022] Open
Abstract
Asexual vertebrates are rare and at risk of extinction due to their restricted adaptability through the loss of genetic recombination. We explore the mechanisms behind the generation and maintenance of genetic diversity in triploid asexual (gynogenetic) Carassius auratus fish, which is widespread in East Asian fresh waters and exhibits one of the most extensive distribution among asexual vertebrates despite its dependence on host sperm. Our analyses of genetic composition using dozens of genetic markers and genome-wide transcriptome sequencing uncover admixed genetic composition of Japanese asexual triploid Carassius consisting of both the diverged Japanese and Eurasian alleles, suggesting the involvement of Eurasian lineages in its origin. However, coexisting sexual diploid relatives and asexual triploids in Japan show regional genetic similarity in both mitochondrial and nuclear markers. These results are attributed to a unique unidirectional gene flow from diploids to sympatric triploids, with the involvement of occasional sexual reproduction. Additionally, the asexual triploid shows a weaker population structure than the sexual diploid, and multiple triploid lineages coexist in most Japanese rivers. The generated diversity via repeated interploidy gene flow as well as an increased establishment of immigrants is assumed to offset the cost of asexual reproduction and might contribute to the successful broad distribution of this asexual vertebrate.
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Affiliation(s)
- Tappei Mishina
- Laboratory of Animal Ecology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan.
- Laboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research, Chuo-ku, Kobe, 650-0047, Japan.
| | - Hirohiko Takeshima
- Research Institute for Humanity and Nature, Kita-ku, Kyoto, 603-8047, Japan
- Department of Marine Biology, Tokai University, Shimizu, Shizuoka, 424-8610, Japan
| | - Mikumi Takada
- Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Chiba, 277-8564, Japan
| | - Kei'ichiro Iguchi
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Chunguang Zhang
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China
| | - Yahui Zhao
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Chaoyang District, Beijing, 100101, China
| | - Ryouka Kawahara-Miki
- NODAI Genome Research Center, Tokyo University of Agriculture, Setagaya-ku, Tokyo, 156-8502, Japan
| | - Yasuyuki Hashiguchi
- Department of Biology, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, 569-0801, Japan
| | - Ryoichi Tabata
- Laboratory of Animal Ecology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
- Lake Biwa Museum, 1091 Oroshimo, Kusatsu, Shiga, 525-0001, Japan
| | - Takeshi Sasaki
- Graduate School of Human and Animal-Plant Relationships, Tokyo University of Agriculture, Atsugi, Kanagawa, 243-0034, Japan
| | - Mutsumi Nishida
- University of the Ryukyus, Nakagami-gun, Okinawa, 903-0213, Japan
| | - Katsutoshi Watanabe
- Laboratory of Animal Ecology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan.
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Mori M, Yao T, Mishina T, Endoh H, Tanaka M, Yonezawa N, Shimamoto Y, Yonemura S, Yamagata K, Kitajima TS, Ikawa M. RanGTP and the actin cytoskeleton keep paternal and maternal chromosomes apart during fertilization. J Cell Biol 2021; 220:e202012001. [PMID: 34424312 PMCID: PMC8404465 DOI: 10.1083/jcb.202012001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 06/18/2021] [Accepted: 08/06/2021] [Indexed: 11/22/2022] Open
Abstract
Zygotes require two accurate sets of parental chromosomes, one each from the mother and the father, to undergo normal embryogenesis. However, upon egg-sperm fusion in vertebrates, the zygote has three sets of chromosomes, one from the sperm and two from the egg. The zygote therefore eliminates one set of maternal chromosomes (but not the paternal chromosomes) into the polar body through meiosis, but how the paternal chromosomes are protected from maternal meiosis has been unclear. Here we report that RanGTP and F-actin dynamics prevent egg-sperm fusion in proximity to maternal chromosomes. RanGTP prevents the localization of Juno and CD9, egg membrane proteins that mediate sperm fusion, at the cell surface in proximity to maternal chromosomes. Following egg-sperm fusion, F-actin keeps paternal chromosomes away from maternal chromosomes. Disruption of these mechanisms causes the elimination of paternal chromosomes during maternal meiosis. This study reveals a novel critical mechanism that prevents aneuploidy in zygotes.
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Affiliation(s)
- Masashi Mori
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
- Laboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Tatsuma Yao
- Research and Development Center, Fuso Pharmaceutical Industries, Ltd., Osaka, Japan
- Graduate School of Biology-Oriented Science and Technology, Kindai University, Wakayama, Japan
| | - Tappei Mishina
- Laboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Hiromi Endoh
- Laboratory for Ultrastructural Research, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Masahito Tanaka
- Physics and Cell Biology Laboratory, National Institute of Genetics & Department of Genetics, SOKENDAI University, Kanagawa, Japan
| | - Nao Yonezawa
- Graduate School of Biology-Oriented Science and Technology, Kindai University, Wakayama, Japan
| | - Yuta Shimamoto
- Physics and Cell Biology Laboratory, National Institute of Genetics & Department of Genetics, SOKENDAI University, Kanagawa, Japan
| | - Shigenobu Yonemura
- Laboratory for Ultrastructural Research, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- Department of Cell Biology, Tokushima University Graduate School of Medical Science, Tokushima, Japan
| | - Kazuo Yamagata
- Graduate School of Biology-Oriented Science and Technology, Kindai University, Wakayama, Japan
| | - Tomoya S. Kitajima
- Laboratory for Chromosome Segregation, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
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Kokita T, Ueno K, Yamasaki YY, Matsuda M, Tabata R, Nagano AJ, Mishina T, Watanabe K. Gudgeon fish with and without genetically determined countershading coexist in heterogeneous littoral environments of an ancient lake. Ecol Evol 2021; 11:13283-13294. [PMID: 34646469 PMCID: PMC8495823 DOI: 10.1002/ece3.8050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/02/2021] [Accepted: 08/09/2021] [Indexed: 11/16/2022] Open
Abstract
Countershading, characterized by a darker dorsal surface and lighter ventral surface, is common among many animals. This dorsoventral pigment polarity is often thought to be adaptive coloration for camouflage. By contrast, noncountershaded (melanistic) morphs often occur within a species due to genetic color polymorphism in terrestrial animals. However, the polymorphism with either countershaded or melanistic morphs is poorly known in wild aquatic animals. This study explored the genetic nature of diverged color morphs of a lineage of gudgeon fish (genus Sarcocheilichthys) in the ancient Lake Biwa and propose this system as a novel model for testing hypotheses of functional aspects of countershading and its loss in aquatic environments. This system harbors two color morphs that have been treated taxonomically as separate species; Sarcocheilichthys variegatus microoculus which occurs throughout the littoral zone and Sarcocheilichthys biwaensis which occurs in and around rocky areas. First, we confirmed that the divergence of dorsoventral color patterns between the two morphs is under strict genetic control at the levels of chromatophore distribution and melanin-related gene expression under common garden rearing. The former morph displayed sharp countershading coloration, whereas the latter morph exhibited a strong tendency toward its loss. The crossing results indicated that this divergence was likely controlled by a single locus in a two-allele Mendelian inheritance pattern. Furthermore, our population genomic and genome-wide association study analyses detected no genome-wide divergence between the two morphs, except for one region near a locus that may be associated with the color divergence. Thus, these morphs are either in a state of intraspecific color polymorphism or two incipient species. Evolutionary forces underlying this polymorphism appear to be associated with heterogeneous littoral environments in this lake. Future ecological genomic research will provide insight into adaptive functions of this widespread coloration, including the eco-evolutionary drivers of its loss, in the aquatic world.
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Affiliation(s)
- Tomoyuki Kokita
- Faculty of Marine Science and TechnologyFukui Prefectural UniversityObamaJapan
| | - Kohtaro Ueno
- Faculty of Marine Science and TechnologyFukui Prefectural UniversityObamaJapan
| | | | | | | | - Atsushi J. Nagano
- Faculty of AgricultureRyukoku UniversityOtsuJapan
- Institute for Advanced BiosciencesKeio UniversityTsuruokaJapan
| | - Tappei Mishina
- Laboratory for Chromosome SegregationRIKEN Center for Biosystems Dynamics ResearchKobeJapan
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Mishina T, Tabata N, Hayashi T, Yoshimura M, Umeda M, Mori M, Ikawa Y, Hamada H, Nikaido I, Kitajima TS. Single-oocyte transcriptome analysis reveals aging-associated effects influenced by life stage and calorie restriction. Aging Cell 2021; 20:e13428. [PMID: 34245092 PMCID: PMC8373347 DOI: 10.1111/acel.13428] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 06/11/2021] [Accepted: 06/17/2021] [Indexed: 12/13/2022] Open
Abstract
Chromosome segregation errors in oocytes lead to the production of aneuploid eggs, which are the leading cause of pregnancy loss and of several congenital diseases such as Down syndrome. The frequency of chromosome segregation errors in oocytes increases with maternal age, especially at a late stage of reproductive life. How aging at various life stages affects oocytes differently remains poorly understood. In this study, we describe aging‐associated changes in the transcriptome profile of mouse oocytes throughout reproductive life. Our single‐oocyte comprehensive RNA sequencing using RamDA‐seq revealed that oocytes undergo transcriptome changes at a late reproductive stage, whereas their surrounding cumulus cells exhibit transcriptome changes at an earlier stage. Calorie restriction, a paradigm that reportedly prevents aging‐associated egg aneuploidy, promotes a transcriptome shift in oocytes with the up‐regulation of genes involved in chromosome segregation. This shift is accompanied by the improved maintenance of chromosomal cohesin, the loss of which is a hallmark of oocyte aging and causes chromosome segregation errors. These findings have implications for understanding how oocytes undergo aging‐associated functional decline throughout their reproductive life in a context‐dependent manner.
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Affiliation(s)
- Tappei Mishina
- Laboratory for Chromosome Segregation RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
| | - Namine Tabata
- Laboratory for Chromosome Segregation RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
- Graduate School of Biostudies Kyoto University Kyoto Japan
| | - Tetsutaro Hayashi
- Laboratory for Bioinformatics Research RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
| | - Mika Yoshimura
- Laboratory for Bioinformatics Research RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
| | - Mana Umeda
- Laboratory for Bioinformatics Research RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
| | - Masashi Mori
- Laboratory for Chromosome Segregation RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
| | - Yayoi Ikawa
- Laboratory for Organismal Patterning RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
| | - Hiroshi Hamada
- Laboratory for Organismal Patterning RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
| | - Itoshi Nikaido
- Laboratory for Bioinformatics Research RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
- Department of Functional Genome Informatics, Division of Medical Genomics, Medical Research Institute Tokyo Medical and Dental University (TMDU) Bunkyo Japan
- Master's/Doctoral Program in Life Science Innovation (Bioinformatics), Degree Programs in Systems and Information Engineering, Graduate School of Science and Technology University of Tsukuba Tsukuba Japan
| | - Tomoya S. Kitajima
- Laboratory for Chromosome Segregation RIKEN Center for Biosystems Dynamics Research (BDR) Kobe Japan
- Graduate School of Biostudies Kyoto University Kyoto Japan
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Kon T, Omori Y, Fukuta K, Wada H, Watanabe M, Chen Z, Iwasaki M, Mishina T, Matsuzaki SIS, Yoshihara D, Arakawa J, Kawakami K, Toyoda A, Burgess SM, Noguchi H, Furukawa T. The Genetic Basis of Morphological Diversity in Domesticated Goldfish. Curr Biol 2020; 30:2260-2274.e6. [PMID: 32392470 DOI: 10.1016/j.cub.2020.04.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 03/13/2020] [Accepted: 04/15/2020] [Indexed: 10/24/2022]
Abstract
Although domesticated goldfish strains exhibit highly diversified phenotypes in morphology, the genetic basis underlying these phenotypes is poorly understood. Here, based on analysis of transposable elements in the allotetraploid goldfish genome, we found that its two subgenomes have evolved asymmetrically since a whole-genome duplication event in the ancestor of goldfish and common carp. We conducted whole-genome sequencing of 27 domesticated goldfish strains and wild goldfish. We identified more than 60 million genetic variations and established a population genetic structure of major goldfish strains. Genome-wide association studies and analysis of strain-specific variants revealed genetic loci associated with several goldfish phenotypes, including dorsal fin loss, long-tail, telescope-eye, albinism, and heart-shaped tail. Our results suggest that accumulated mutations in the asymmetrically evolved subgenomes led to generation of diverse phenotypes in the goldfish domestication history. This study is a key resource for understanding the genetic basis of phenotypic diversity among goldfish strains.
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Affiliation(s)
- Tetsuo Kon
- Laboratory for Molecular and Developmental Biology, Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
| | - Yoshihiro Omori
- Laboratory for Molecular and Developmental Biology, Institute for Protein Research, Osaka University, Osaka 565-0871, Japan.
| | - Kentaro Fukuta
- Center for Genome Informatics, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, Yata 1111, Mishima, Shizuoka 411-8540, Japan
| | - Hironori Wada
- College of Liberal Arts and Sciences, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Masakatsu Watanabe
- Laboratory of Pattern Formation, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, Osaka
| | - Zelin Chen
- Translational and Functional Genomics Branch, National Human Genome Research Institute, Bethesda, MD, USA
| | - Miki Iwasaki
- College of Liberal Arts and Sciences, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Tappei Mishina
- Laboratory of Animal Ecology, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | | | - Daiki Yoshihara
- Laboratory for Molecular and Developmental Biology, Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
| | - Jumpei Arakawa
- Yatomi Station, Aichi Fisheries Research Institute, Yatomi, Aichi, Japan
| | - Koichi Kawakami
- Laboratory of Molecular and Developmental Biology, National Institute of Genetics, and Department of Genetics, The Graduate University for Advanced Studies (SOKENDAI), Mishima, Japan
| | - Atsushi Toyoda
- Comparative Genomics Laboratory, National Institute of Genetics, Yata 1111, Mishima, Shizuoka 411-8540, Japan
| | - Shawn M Burgess
- Translational and Functional Genomics Branch, National Human Genome Research Institute, Bethesda, MD, USA
| | - Hideki Noguchi
- Center for Genome Informatics, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, Yata 1111, Mishima, Shizuoka 411-8540, Japan; Advanced Genomics Center, National Institute of Genetics, Yata 1111, Mishima, Shizuoka 411-8540, Japan
| | - Takahisa Furukawa
- Laboratory for Molecular and Developmental Biology, Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
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Mishina T, Aiba T, Hiramatsu K, Shibata Y, Yoshihara M, Aoba T, Yamaguchi N, Kato T. Comparison between dexmedetomidine and midazolam as a sedation agent with local anesthesia in inguinal hernia repair: randomized controlled trial. Hernia 2017; 22:471-478. [PMID: 28965137 DOI: 10.1007/s10029-017-1680-1] [Citation(s) in RCA: 3] [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] [Received: 02/25/2017] [Accepted: 09/24/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE In Japan, inguinal hernia repair is widely performed with local anesthesia. The objective of this study was to evaluate safety and efficacy of intravenous dexmedetomidine as a sedation agent with local anesthesia in inguinal hernia repair. METHODS We performed this randomized, single-blind study for 200 patients who were scheduled to undergo inguinal hernia repair with local anesthesia. Patients were randomly divided into two groups (dexmedetomidine group: Group D, midazolam group: Group M). The primary outcome was to evaluate the safety of intravenous dexmedetomidine. Secondary outcomes were to analyze results of operators' surveys and patients' questionnaires and evaluate implementation of conscious sedation. RESULTS Incidence of respiratory depression was significantly higher in Group M than Group D (p = 0.03). Other adverse events examined did not differ significantly. All three operators' questionnaires indicated that results were better in Group D than Group M. More than 70% of patients in both groups were satisfied with the surgery. More than 80% of Group D patients and 74% of Group M patients achieved a state of conscious sedation. CONCLUSION This study demonstrated that intravenous dexmedetomidine during hernia repair with local anesthesia is safe and the results were satisfactory to both operators and patients.
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Affiliation(s)
- T Mishina
- Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan. .,Department of Surgery, Ogaki Municipal Hospital, Ogaki, Japan.
| | - T Aiba
- Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan.,Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Hiramatsu
- Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - Y Shibata
- Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - M Yoshihara
- Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - T Aoba
- Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - N Yamaguchi
- Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - T Kato
- Department of General Surgery, Toyohashi Municipal Hospital, Toyohashi, Japan
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Kawamata H, Kuwaki S, Mishina T, Ikoma T, Tanaka J, Nozaki R. Hierarchical viscosity of aqueous solution of tilapia scale collagen investigated via dielectric spectroscopy between 500 MHz and 2.5 THz. Sci Rep 2017; 7:45398. [PMID: 28345664 PMCID: PMC5366979 DOI: 10.1038/srep45398] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 02/23/2017] [Indexed: 11/24/2022] Open
Abstract
Aqueous solutions of biomolecules such as proteins are very important model systems for understanding the functions of biomolecules in actual life processes because interactions between biomolecules and the surrounding water molecules are considered to be important determinants of biomolecules’ functions. Globule proteins have been extensively studied via dielectric spectroscopy; the results indicate three relaxation processes originating from fluctuations in the protein molecule, the bound water and the bulk water. However, the characteristics of aqueous solutions of collagens have rarely been investigated. In this work, based on broadband dielectric measurements between 500 MHz and 2.5 THz, we demonstrate that the high viscosity of a collagen aqueous solution is due to the network structure being constructed of rod-like collagen molecules surrounding free water molecules and that the water molecules are not responsible for the viscosity. We determine that the macroscopic viscosity is related to the mean lifetime of the collagen-collagen interactions supporting the networks and that the local viscosity of the water surrounded by the networks is governed by the viscosity of free water as in the bulk. This hierarchical structure in the dynamics of the aqueous solution of biomolecules has been revealed for the first time.
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Affiliation(s)
- H Kawamata
- Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - S Kuwaki
- Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - T Mishina
- Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - T Ikoma
- Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - J Tanaka
- Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - R Nozaki
- Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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Tanaka A, Mishina T, Izumi H, Hommura F, Akie K, Ogura S, Yamamoto H. [Direct instillation of the fibrin glue into the ruptured bulla is an effective treatment for uncontrolled pneumothorax occurred from severe emphysematous bullae]. Kyobu Geka 2011; 64:286-290. [PMID: 21491722] [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: 05/30/2023]
Abstract
From May 2005 to October 2010. 9 patients with severe emphysematous bullae suffered from uncontrolled pneumothorax had been successfully treated by a new surgical method in our hospital. By using direct instillation of fibrin glue into the ruptured bulla following ligation of the ruptured bulla hole, 8 of 9 patients revealed no recurrence of new rupture and pneumothorax. Although the ligation of ruptured bulla hole tended to increase tension of surface of the bulla around the ligation and caused new rupture of the bulla, the fully instilled glue reduced intra air pressure of the ligated bulla and prevented new rupture. Additionally, the direct instillation of the glue immediately stopped the air leakage by itself. This direct instillation method of the glue encouraged us to challenge the surgery for the patients suffered from uncontrolled pneumothorax with severe emphysematous bullae.
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Affiliation(s)
- A Tanaka
- Department of Thoracic Surgery, Sapporo City General Hospital, Sapporo, Japan
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11
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Ochi H, Yanagi T, Nakajo M, Takemiya A, Mochizuki M, Oshima H, Watanabe W, Mishina T, Nakamura H. 581 POSTER Discovery of a novel anti-tumor agent targeting NF-kB pathway. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70586-9] [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: 10/23/2022] Open
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12
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Abstract
Retroperitoneal mucinous cystadenocarcinomas are extremely rare. A 40-year-old Japanese woman was found to have a retroperitoneal mucinous cystadenocarcinoma of ovarian type. Both ovaries were normal. Concentrations of carcinoembryonic antigen and carbohydrate antigen 19-9 in the cyst fluid were extremely high (810,000 ng/ml and 8,082,000 IU/l, respectively). The tumor varied from benign to borderline and malignant in microscopic appearance, and the lesion was composed of mesothelium-like cells. The histologic and immunohistochemical findings suggested that the tumor developed from mucinous metaplasia of the coelomic mesothelium.
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Affiliation(s)
- S Suzuki
- Department of Surgery, Tsuruoka Municipal Shonai Hospital, Yamagata, Japan
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13
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Dosaka-Akita H, Hommura F, Mishina T, Ogura S, Shimizu M, Katoh H, Kawakami Y. A risk-stratification model of non-small cell lung cancers using cyclin E, Ki-67, and ras p21: different roles of G1 cyclins in cell proliferation and prognosis. Cancer Res 2001; 61:2500-4. [PMID: 11289121] [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: 02/19/2023]
Abstract
A large number of biological factors that seem to have important prognostic significance have been identified in non-small cell lung cancers (NSCLCs). In the present study, we have characterized expression of cyclin D1 and cyclin E in a cohort of 217 resected NSCLCs from a single institution by immunohistochemistry to analyze their expression in relation to the growth fraction determined by Ki-67 and to prognosis, and then we have constructed a risk-stratification model of cancer death by multiple biological factors in p-stage I NSCLCs. The cyclin E labeling index (LI) was significantly associated with the Ki-67 LI (r = 0.45; P < 0.001). Tumors having high-level cyclin E expression (cyclin E LI > or =30%) showed a significantly higher Ki-67 LI than tumors having low-level cyclin E expression (cyclin E LI <30%; P < 0.001), whereas positive or negative cyclin D1 expression was not associated with the Ki-67 LI (P = 0.1). Cyclin E expression was a significant and independent unfavorable prognostic factor (hazards ratio = 2.09; P = 0.03), as reported previously (Clin. Cancer Res., 6: 11-16, 2000), whereas cyclin D1 expression was not. These findings indicate different roles of cyclin D1 and cyclin E in cell proliferation and in the prognosis of NSCLCs. Furthermore, we stratified this cohort of p-stage I NSCLCs into different survival groups by using biological factors, including cyclin E, Ki-67, and ras p21, which previously we have found to be independent prognostic factors among 10 factors studied in p-stage I NSCLCs. Four groups of patients with markedly different survivals were identified with 5-year survival rates that ranged from 96% for patients with no factors altered to 41% for patients with all three factors altered (P < 0.001). This combination of biological factors was a significant and independent prognostic factor (hazards ratio = 7.94; P = 0.001).
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Affiliation(s)
- H Dosaka-Akita
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan.
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14
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Abstract
BACKGROUND CD2- CD4+ CD56+ lymphoid malignancy has been only rarely reported the last 5 years. It is characterized by a high incidence of cutaneous involvement, cytologically agranular cells, aggressive clinical course, and negative Epstein-Barr virus (EBV) involvement. OBSERVATION We describe a Japanese patient with a unique hematolymphoid malignancy characterized by an involvement of skin, nasopharyngeal region, bone marrow, lymph node, and a CD4+ CD43+ CD56+ CD2- CD3- CD8- and terminal deoxynucleotidyl transferase phenotype. Clinically, the cutaneous eruptions were purplish, hard, multiple nodules. Histologically, a massive proliferation of atypical pleomorphic cells with medium-sized nuclei were observed throughout the dermis. No clonal rearrangement of T-cell receptor (TCR)-beta gene or immunoglobulin heavy chain J gene was found, and no positive identification of EBV by in situ hybridization for EBV-encoded small nuclear RNA was found. The patient underwent high-dose chemotherapy with autografting of peripheral blood stem cells; however, the tumors quickly relapsed. CONCLUSION We gathered data from 17 cases of lymphoid malignancy from the literature sharing immunophenotypic and genotypic features similar to those of our case, including CD2- CD4+ CD56+ and germline rearrangement of TCR. Although the cellular origin could not be decided, this malignancy was found to have 100% affinity for skin, a short course, and poor prognosis.
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Affiliation(s)
- N Kato
- Department of Dermatology and Clinical Research Institute, National Sapporo Hospital, Japan
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15
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Hommura F, Dosaka-Akita H, Mishina T, Nishi M, Kojima T, Hiroumi H, Ogura S, Shimizu M, Katoh H, Kawakami Y. Prognostic significance of p27KIP1 protein and ki-67 growth fraction in non-small cell lung cancers. Clin Cancer Res 2000; 6:4073-81. [PMID: 11051259] [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: 02/18/2023]
Abstract
We immunohistochemically examined specimens of 215 surgically resected non-small cell lung cancers (NSCLCs) for p27KIP1 protein (p27) expression and the growth fraction determined by the Ki-67 labeling index (LI). The NSCLCs analyzed showed considerable heterogeneity in both p27 and Ki-67 LIs; 25 of 207 (13%) lacked p27 expression (p27 LI < 5%), and 116 of 215 (54%) showed a high Ki-67 LI (>30%). The p27 LI was not significantly associated with the Ki-67 LI. A chi2 test showed that loss of p27 expression was inversely correlated with smoking (P = 0.01) and that a high Ki-67 LI was significantly associated with male gender, squamous cell carcinoma histology, and smoking (P < 0.0001 each). Prognostic values of p27 and Ki-67 expression were evaluated in 109 tumors of postsurgical pathological stages I and II. Patients with tumors lacking p27 expression survived for a significantly shorter time than patients with tumors expressing p27 (5-year survival rates, 38% and 68%, respectively; P = 0.02). Patients with tumors having a high Ki-67 LI survived for a significantly shorter time than patients with tumors having a low Ki-67 LI (5-year survival rates, 48% and 78%, respectively; P = 0.005). Multivariate analysis showed that loss of p27 expression tended to be an unfavorable prognostic factor (P = 0.054), whereas a high Ki-67 LI was a significant and independent unfavorable prognostic factor (P = 0.004). When analyzed by cell types, loss of p27 expression was a significant and independent unfavorable prognostic factor in squamous cell carcinomas (P = 0.01), whereas a high Ki-67 LI was a significant and independent unfavorable prognostic factor in nonsquamous cell carcinomas (P = 0.007). We further evaluated the importance of p27 expression in clinical outcome in combination with the Ki-67 LI and ras p21 protein (ras) expression, which we previously reported as an important prognostic factor in NSCLCs. Patients with tumors lacking p27 expression and having a high Ki-67 LI survived for a significantly shorter time than those with tumors expressing p27 and having a high Ki-67 LI (5-year survival rates, 17% and 52%, respectively; P = 0.003). Patients with p27-negative and ras-positive tumors survived for a significantly shorter time than those with both p27- and ras-positive tumors (5-year survival rates, 0% and 38%, respectively; P < 0.0001). These results indicate the pivotal roles of p27 and Ki-67 expression in the clinical outcome of NSCLCs.
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Affiliation(s)
- F Hommura
- First Department of Medicine Hokkaido University School of Medicine, Sapporo, Japan
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16
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Hommura F, Dosaka-Akita H, Mishina T, Hiroumi H, Ogura S, Shimizu M, Katoh H, Kawakami Y. Prognostic significance of p27/KIP1 protein (p27) and Ki-67 growth fraction in non-small cell lung cancers (NSCLCs). Lung Cancer 2000. [DOI: 10.1016/s0169-5002(00)80618-2] [Citation(s) in RCA: 7] [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: 11/17/2022]
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17
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Katabami M, Dosaka-Akita H, Mishina T, Honma K, Kimura K, Uchida Y, Morikawa K, Mikami H, Fukuda S, Inuyama Y, Ohsaki Y, Kawakami Y. Frequent cyclin D1 expression in chromate-induced lung cancers. Hum Pathol 2000; 31:973-9. [PMID: 10987259 DOI: 10.1053/hupa.2000.9081] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Ex-chromate workers are frequently afflicted with lung cancers, especially central-type squamous cell carcinomas (SCCs) of the lung. However, little is known about the molecular and cellular biologic characteristics of chromate-induced lung cancers. We investigated expression of cyclin D1, bcl-2, and p53 proteins in chromate-induced lung cancers by immunohistochemistry, compared with those in lung cancers from nonexposed individuals and those in individuals with pneumoconiosis. Of 19 chromate-induced lung cancers, 16 tumors were SCCs, including 11 central and 5 peripheral types. Eleven (69%) of 16 chromate SCCs showed cyclin D1 expression. In contrast, cyclin D1 expression was observed in only 3 (12%) of 26 SCCs from nonexposed individuals and 6 (16%) of 37 SCCs that developed in patients with pneumoconiosis, respectively. The frequency of cyclin D1 expression proved to be significantly higher in chromate-induced SCCs than in SCCs from nonexposed individuals and from those with pneumoconiosis (P < .001). When comparisons were extended to all histologic types of lung cancer, cyclin D1 expression was observed significantly more often in chromate-induced lung cancers than in lung cancers from nonexposed subjects and those from patients with pneumoconiosis (11 [58%] of 19 v 5 [10%] of 52, P < .001, and 7 [11%] of 63, P < .001, respectively). Frequencies of bcl-2 and p53 expression were not significantly different among lung cancers from ex-chromate workers, nonexposed individuals and those with pneumoconiosis. The current study suggests that cyclin D1 expression may be involved in the development of chromate-induced lung cancers, although its underlying mechanism remains to be determined.
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18
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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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19
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Naganuma A, Miura N, Kaneko S, Mishina T, Hosoya S, Miyairi S, Furuchi T, Kuge S. GFAT as a target molecule of methylmercury toxicity in Saccharomyces cerevisiae. FASEB J 2000; 14:968-72. [PMID: 10783151 DOI: 10.1096/fasebj.14.7.968] [Citation(s) in RCA: 41] [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: 11/11/2022]
Abstract
Using a genomic library constructed from Saccharomyces cerevisiae, we have identified a gene GFA1 that confers resistance to methylmercury toxicity. GFA1 encodes L-glutamine:D-fructose-6-phosphate amidotransferase (GFAT) and catalyzes synthesis of glucosamine-6-phosphate. Transformed yeast cells expressing GFA1 demonstrated resistance to methylmercury but no resistance to p-chloromercuribenzoate, a GFAT inhibitor. The cytotoxicity of methylmercury was inhibited by loading excess glucosamine 6-phosphate into yeast. Considering that GFAT is an essential cellular enzyme, our findings suggest that GFAT is the major target molecule of methylmercury in yeasts. This report is the first to identify the target molecule of methylmercury toxicity in eukaryotic cells.
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Affiliation(s)
- A Naganuma
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan.
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20
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Iinuma Y, Iwafuchi M, Uchiyama M, Yagi M, Kondoh K, Ohtani S, Kanada S, Mishina T, Saitoh H, Suzuki N. A case of Currarino triad with familial sacral bony deformities. Pediatr Surg Int 2000; 16:134-5. [PMID: 10663864 DOI: 10.1007/s003830050042] [Citation(s) in RCA: 14] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We describe a male patient presenting with Currarino triad: a recto-urethral fistula, sacral bony deformity, and a presacral teratoma. Clinical screening of his family revealed three additional cases with incomplete forms of this association. Cytogenetic findings in the patient and his mother were normal. This case suggests that the occurrence of an anorectal malformation together with a sacral bony deformity should raise a physician's index of suspicion for associated presacral tumors, and that screening of the patient's family members with sacral radiographs is necessary.
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Affiliation(s)
- Y Iinuma
- Department of Pediatric Surgery, Niigata University, 1-757 Asahimachi-dori, Niigata City, 951-8520, Japan
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21
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Mishina T, Dosaka-Akita H, Hommura F, Nishi M, Kojima T, Ogura S, Shimizu M, Katoh H, Kawakami Y. Cyclin E expression, a potential prognostic marker for non-small cell lung cancers. Clin Cancer Res 2000; 6:11-6. [PMID: 10656426] [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: 02/15/2023]
Abstract
Cyclin E is a G1 cyclin that has been shown to be one of the key regulators of the G1-S transition and could consequently be a deregulated molecule in tumors. In the present study, we have characterized cyclin E expression by immunohistochemistry in 217 resected non-small cell lung cancers (NSCLCs) and found large variations in cyclin E expression among tumors. High-level cyclin E expression (a cyclin E-labeling index > or =30%), observed in 115 (53%) of 217 NSCLCs, was more frequently found in tumors from smokers than from nonsmokers (P = 0.001), in squamous cell carcinomas than in nonsquamous cell carcinomas (P = 0.0002), and in pT2-4 tumors than in pT1 tumors (P = 0.04) by the chi2 test. Multivariate logistic regression analysis for the correlation between cyclin E expression and various characteristics showed a significant association of high-level cyclin E expression with squamous cell carcinomas (P = 0.005). Patients with tumors having high-level cyclin E expression survived a significantly shorter time than patients with tumors having low-level expression, both among the 151 patients with potentially curatively resected NSCLCs (5-year survival rates, 48 and 63%, respectively; P = 0.03) and the 103 patients with p stage I NSCLCs (5-year survival rates, 57 and 81%, respectively; P = 0.007). High-level cyclin E expression was also a significant and independent unfavorable prognostic factor in both patients with potentially curatively resected NSCLCs (P = 0.01) and in those with p stage I NSCLCs (P = 0.03) by Cox's proportional hazards model analysis. These findings indicate that cyclin E may play a pivotal role for the biological behavior of NSCLCs, and that a high level of cyclin E expression may be a new prognostic marker for NSCLCs.
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Affiliation(s)
- T Mishina
- First Department of Medicine, Hokkaido University School of Medicine, Japan
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22
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Hommura F, Dosaka-Akita H, Kinoshita I, Mishina T, Hiroumi H, Ogura S, Katoh H, Kawakami Y. Predictive value of expression of p16INK4A, retinoblastoma and p53 proteins for the prognosis of non-small-cell lung cancers. Br J Cancer 1999; 81:696-701. [PMID: 10574258 PMCID: PMC2362891 DOI: 10.1038/sj.bjc.6690750] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The predictive value of expression of p16INK4A, retinoblastoma (Rb) and p53 proteins for prognosis was evaluated in 76 patients with non-small-cell lung cancers (NSCLCs) that were potentially curatively resected between 1990 and 1995, using the results of immunostaining analyses of these proteins as reported in our previous study (Kinoshita et al, 1996). Of these NSCLCs, 22 (29%) lacked p16 protein expression and eight (11%) Rb protein, while 30 (39%) showed positive (altered) p53 protein expression. Survival of patients with p16-negative tumours was not significantly different from that of patients with p16-positive tumours (5-year survival rates 67% and 72% respectively, P = 0.8), nor was survival of patients with Rb-negative tumours significantly different from that of patients with Rb-positive tumours (5-year survival rates 42% and 69% respectively, P = 0.9). Moreover, survival of patients with p16/Rb-negative (either p16- or Rb-negative) tumours was not significantly different from that of patients with p16/Rb-positive (both p16- and Rb-positive) tumours (5-year survival rates 67% and 68% respectively, P = 0.7). In contrast, survival of patients with p53-positive (altered) tumours tended to be shorter than that of patients with p53-negative (unaltered) tumours (5-year survival rates 56% and 78% respectively, P = 0.06). In univariate analysis of potential prognostic factors, p16, Rb and p16/Rb proteins were not significant prognostic factors in the present cohort of potentially curatively resected NSCLCs. Altered p53 protein status tended to be a negative prognostic factor (P = 0.06 by the univariate analysis). These results indicate that loss of p16 protein alone, or in combination with loss of Rb protein, does not predict the clinical outcome of patients with resected NSCLCs.
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Affiliation(s)
- F Hommura
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
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23
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Mishina T, Okano F, Yuyama I. Time-alternating method based on single-sideband holography with half-zone-plate processing for the enlargement of viewing zones. Appl Opt 1999; 38:3703-13. [PMID: 18319975 DOI: 10.1364/ao.38.003703] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The single-sideband method of holography, as is well known, cuts off beams that come from conjugate images for holograms produced in the Fraunhofer region and from objects with no phase components. The single-sideband method with half-zone-plate processing is also effective in the Fresnel region for beams from an object that has phase components. However, this method restricts the viewing zone to a narrow range. We propose a method to improve this restriction by time-alternating switching of hologram patterns and a spatial filter set on the focal plane of a reconstruction lens.
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Affiliation(s)
- T Mishina
- Science and Technical Research Laboratories, NHK, Japan Broadcasting Corporation, 1-10-11 Kinuta, Setagaya-ku, 157-8510 Tokyo, Japan.
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24
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Mishina T, Dosaka-Akita H, Kinoshita I, Hommura F, Morikawa T, Katoh H, Kawakami Y. Cyclin D1 expression in non-small-cell lung cancers: its association with altered p53 expression, cell proliferation and clinical outcome. Br J Cancer 1999; 80:1289-95. [PMID: 10376986 PMCID: PMC2362358 DOI: 10.1038/sj.bjc.6990500] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cyclin D1, like p16INK4 (p16) and retinoblastoma (RB) proteins, participates in the cell cycle control at the G1-S transition. We have previously demonstrated altered p16 and RB protein status in non-small-cell lung cancers (NSCLCs) and their potential synergistic effect with altered p53 protein on proliferative activity (Kinoshita et al (1996) Cancer Res 56: 5557-5562). In the present study, cyclin D1 expression was studied by immunohistochemistry in the same cohort of 111 resected NSCLCs as in our previous study, and the amount of the cyclin D1 gene was analysed by Southern blot analysis in 29 NSCLCs. Cyclin D1 expression was analysed in relation to the status of p53, p16 and RB proteins, and proliferative activity determined by the Ki-67 index. It was also analysed in relation to survival of 77 patients with NSCLCs which were potentially curatively resected between 1990 and 1995. We found that: (1) cyclin D1 was expressed in 13 (11.7%) of 111 NSCLCs; (2) the cyclin D1 gene was neither significantly amplified nor rearranged; (3) cyclin D1 expression significantly correlated with altered p53 protein expression (P = 0.04), whereas it did not correlate with p16 and RB protein status; (4) proliferative activity tended to be higher in cyclin D1-positive (+) tumours than in cyclin D1-negative (-) tumours, although this difference was not statistically significant (P = 0.08); and (5) patients with cyclin D1+ tumours survived longer than patients with cyclin D1- tumours (5-year survival rates, 89% and 64% respectively, by the Kaplan-Meier method; P = 0.045 by the log-rank test), and cyclin D1 expression tended to be a favourable prognostic factor (P = 0.08 in univariate analysis). These findings suggest the involvement of cyclin D1 in the development and progression of NSCLCs, their proliferative activity and clinical outcome of NSCLC patients.
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Affiliation(s)
- T Mishina
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
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25
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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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26
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Iiai T, Ohmori K, Ohtaki M, Mishina T, Saitoh H, Ishihara R, Suzuki N. [Adult bochdalek hernia after playing at a tug of war]. Kyobu Geka 1997; 50:968-70. [PMID: 9330523] [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
A 38-year-old female was admitted to Shonai Hospital with severe abdominal pain and nausea after playing at a tug of war in the athletic meeting. The X-ray film showed air above the left diaphragm, and CT scan and barium enema revealed the incarcerated transverse colon to the left thoracic cavity. Operation was performed through a thoracotomy. Because of no evidence of trauma, the case was diagnosed as adult Bochdalek hernia. Repair could be done by direct suture and her postoperative course was uneventful.
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Affiliation(s)
- T Iiai
- Department of Surgery, Shonai Hospital, Tsuruoka, Japan
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27
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Marubayashi N, Mishina T, Hamasaki T, Hirayama N. (4 RS,1' RS)-Methyl 1-Phenyl-2-piperidinoethyl 1,4-Dihydro-2,6-dimethyl-4-(2-thienyl)pyridine-3,5-dicarboxylate Methanol Solvate, C 27H 32N 2O 4S.1.5CH 4O. Acta Crystallogr C 1997. [DOI: 10.1107/s0108270197000528] [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: 11/10/2022] Open
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Takamura K, Nasuhara Y, Mishina T, Matsuda T, Nishimura M, Kawakami Y, Fujita M, Mikuni C, Yamashiro K. Intravascular lymphomatosis diagnosed by transbronchial lung biopsy. Eur Respir J 1997; 10:955-7. [PMID: 9150341] [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: 02/04/2023]
Abstract
Intravascular lymphomatosis is a rare lymphoma presenting a variety of symptoms due to proliferation of tumour cells within blood vessels in the brain, the skin and other organs. This disease is generally considered to be highly malignant, but to be relatively susceptible to combined chemotherapy, when diagnosed in the early stage. We describe a case of intravascular lymphomatosis, presenting with diffuse interstitial shadows on chest radiographic image, which could be diagnosed by transbronchial lung biopsy. The patient showed a good response to combined chemotherapy. We propose that transbronchial lung biopsy is a useful procedure for the diagnosis of intravascular lymphomatosis.
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Affiliation(s)
- K Takamura
- First Department of Medicine, Hokkaido University, Sapporo, Japan
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Takamura K, Nasuhara Y, Mishina T, Matsuda T, Nishimura M, Kawakami Y, Fujita M, Mikuni C, Yamashiro K. Intravascular lymphomatosis diagnosed by transbronchial lung biopsy. Eur Respir J 1997. [DOI: 10.1183/09031936.97.10040955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Intravascular lymphomatosis is a rare lymphoma presenting a variety of symptoms due to proliferation of tumour cells within blood vessels in the brain, the skin and other organs. This disease is generally considered to be highly malignant, but to be relatively susceptible to combined chemotherapy, when diagnosed in the early stage. We describe a case of intravascular lymphomatosis, presenting with diffuse interstitial shadows on chest radiographic image, which could be diagnosed by transbronchial lung biopsy. The patient showed a good response to combined chemotherapy. We propose that transbronchial lung biopsy is a useful procedure for the diagnosis of intravascular lymphomatosis.
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Yagi M, Mishina T, Fujishima T, Date K, Saito H, Suzuki N. Successful treatment of blunt trauma involving complete laceration of the pancreas and duodenum in a 7-year-old child: report of a case. Surg Today 1997; 27:84-7. [PMID: 9035308 DOI: 10.1007/bf01366947] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [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: 02/03/2023]
Abstract
The acute onset of peritoneal signs and shock in a 7-year-old boy who had been hit in the epigastrium by a log-seesaw mandated surgical treatment. Enhanced computed tomography (CT) demonstrated complete laceration of the pancreas as well as duodenal injury, and a duodenoduodenostomy with distal pancreaticogastrostomy was subsequently performed. Temporary external drainage of the stomach and distal pancreas led to an uneventful recovery in the early postoperative period. Although the patient's postoperative development was appropriate for his age, the orifice of the distal pancreas spontaneously closed 2.5 years following surgery. We present this report to stress the fact that every effort should be made to preserve the pancreas following abdominal injury in children.
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Affiliation(s)
- M Yagi
- Department of Pediatric Surgery, Shonai Hospital, Yamagata, Japan
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Kinoshita I, Dosaka-Akita H, Mishina T, Akie K, Nishi M, Hiroumi H, Hommura F, Kawakami Y. Altered p16INK4 and retinoblastoma protein status in non-small cell lung cancer: potential synergistic effect with altered p53 protein on proliferative activity. Cancer Res 1996; 56:5557-62. [PMID: 8971152] [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: 02/03/2023]
Abstract
p16INK4 protein (p16) and retinoblastoma protein (pRB), like p53 protein, are important tumor suppressors that regulate the cell cycle. We immunohistochemically examined fresh-frozen specimens of 114 resected non-small cell lung cancers (NSCLCs) for loss of p16 and pRB expression, together with aberrant accumulation of p53 protein and the proliferative activity determined by the Ki-67 index. Three pRB-positive tumors were uninterpretable for p16 status. Of the remaining 111 tumors, 30 (27%) lacked p16 expression, and 10 (9%) lost pRB expression. No tumors showed coincident loss of both proteins, supporting the hypothesis that they function in a single pathway. Of 25 tumors, including 4 p16-negative tumors, examined by Southern blot analysis, only 2 p16-negative tumors were considered to have reduced gene dosage consistent with possible homozygous deletion of the CDKN2 gene encoding p16, suggesting that immunohistochemistry is a sensitive and suitable method to screen for p16 alteration. Loss of p16 expression did not correlate with any clinical factors or p53 status, whereas loss of pRB expression correlated with heavy smoking (P = 0.03 by Fisher's exact test and P = 0.01 by the multivariate logistic regression analysis). Proliferative activity was considerably higher in p53-positive tumors than in p53-negative tumors (P < 0.001). Loss of p16 or pRB expression was associated with a further increase in proliferative activity in the p53-positive tumors (P = 0.009) but not with proliferative activity in the p53-negative tumors. These results suggest that alteration of the p16/pRB pathway is relatively frequently involved in the development and progression of NSCLCs and that its effect on the proliferative activity is potentially synergistic with altered p53 protein.
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Affiliation(s)
- I Kinoshita
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
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Oyama H, Wakao F, Mishina T, Lu Y, Honjo A. Virtual cancer image data warehouse. Stud Health Technol Inform 1996; 39:151-4. [PMID: 10168912] [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: 02/11/2023]
Abstract
We previously developed a system with which we have created more than 100 virtual cancer images from CT or MR data of individual patients with cancer (Cancer Edutainment Virtual Reality Theater: CEVRT). These images can be used to help explain procedures, findings, etc. to the patient, to obtain informed consent, to simulate surgery, and to estimate cancer invasion to surrounding organs. We recently developed a web-based object-oriented database both to access these cancer images and to register medical images at international research sites via the Internet. In this report, we introduce an international medical VR data warehouse created using an object-oriented database.
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Affiliation(s)
- H Oyama
- National Cancer Center Hospital, Tokyo, Japan.
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Mishina T. Forward and backward self-consistent approach to coherent-light propagation in stratified structures. Phys Rev B Condens Matter 1996; 54:13630-13634. [PMID: 9985276 DOI: 10.1103/physrevb.54.13630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Yamaguchi S, Kawakami Y, Fujita S, Yamada Y, Mishina T, Masumoto Y. Recombination dynamics of localized excitons in a CdSe/ZnSe/ZnSxSe1-x single-quantum-well structure. Phys Rev B Condens Matter 1996; 54:2629-2634. [PMID: 9986111 DOI: 10.1103/physrevb.54.2629] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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35
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Yamada Y, Mishina T, Masumoto Y, Kawakami Y, Suda J, Fujita S. Time-resolved nonlinear luminescence of biexcitons in ZnSe-ZnxMg1-xSySe1-y single quantum wells. Phys Rev B Condens Matter 1995; 52:R2289-R2292. [PMID: 9981393 DOI: 10.1103/physrevb.52.r2289] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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36
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Mishina T, Suzuki I, Fujino M, Watanabe N, Akita H, Narita Y, Kawakami Y. [A benign clear cell tumor of the lung that grew gradually over five years]. Nihon Kyobu Shikkan Gakkai Zasshi 1995; 33:765-770. [PMID: 7564005] [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: 05/21/2023]
Abstract
A 38-year-old man was found to have an abnormal shadow in his chest X-ray film during a general medical examination. A nodule with a homogeneous density and a clear margin was seen in the upper lobe of the right lung. Since this shadow gradually enlarged during a five-year follow-up period, he was admitted to our hospital. Chest contrast and dynamic CT scans and aortography showed characteristics of a benign tumor with somewhat rich vascularity. The doubling time of this tumor was about 430 days. Transbronchial brushing for cytologic study and a transbronchial biopsy showed no malignancy. However, the tumor was surgically resected because of its gradual growth over the five years. The resected tumor was histologically diagnosed as a benign clear cell tumor of the lung. This disease was first described by Leibow and Castleman in 1963, as a benign pulmonary tumor similar to metastatic renal cell carcinoma. This disease is extremely rare and only 61 cases have been reported: twenty cases, including the present case, in Japan and 41 in other countries.
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Affiliation(s)
- T Mishina
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
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Yamada Y, Mishina T, Masumoto Y, Kawakami Y, Yamaguchi S, Ichino K, Fujita S, Taguchi T. Time-resolved spectroscopy of biexciton luminescence in ZnxCd1-xSe-ZnSySe1-y multiple quantum wells. Phys Rev B Condens Matter 1995; 51:2596-2599. [PMID: 9979021 DOI: 10.1103/physrevb.51.2596] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Furusawa T, Hiratake Y, Mishina T, Ooe H, Maegawa M, Furudama H, Hida S, Itoh M, Inoue S, Nakagawa K. [Evaluation of clinical efficacy and safety of cefpodoxime proxetil (CPDX-PR) in acute uncomplicated cystitis]. Hinyokika Kiyo 1994; 40:853-60. [PMID: 7801852] [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: 01/27/2023]
Abstract
One hundred and fifty female patients with acute uncomplicated cystitis were given 200 mg of CPDX-PR twice daily for 3-7 days to evaluate both its overall clinical efficacy and its adverse effects. In 82 cases (Group I) in which it was administered for 3 days, the overall clinical efficacy, evaluated by the criteria proposed by the Japanese UTI committee, was excellent in 64 cases, moderate in 17 and poor in one, with the effective rate being 98.8%. In 35 cases (Group II) in which it was administered for 4-7 days, the overall clinical efficacy was excellent in 18 cases, moderate in 15 and poor in 2, with the effective rate being 94.3%. The overall clinical evaluation was not performed in another 33 cases because they were given CPDX-PR for more than 8 days or 300 mg/day. Subjective adverse effects such as hoarseness and lingual inflammation were observed in only one of the 150 cases, but they disappeared spontaneously after the cessation of administration of CPDX-PR. These findings suggest that CPDX-PR is one of the most effective and safe antibiotic in the treatment of acute uncomplicated cystitis.
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Affiliation(s)
- T Furusawa
- Department of Urology, Kyoto 2nd Red Cross Hospital
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Yamamoto A, Mishina T, Masumoto Y, Nakayama M. Coherent oscillation of zone-folded phonon modes in GaAs-AlAs superlattices. Phys Rev Lett 1994; 73:740-743. [PMID: 10057525 DOI: 10.1103/physrevlett.73.740] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Masumoto Y, Katayanagi S, Mishina T. Time-resolved luminescence study of biexcitons in CuCl quantum dots. Phys Rev B Condens Matter 1994; 49:10782-10785. [PMID: 10009916 DOI: 10.1103/physrevb.49.10782] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Mishina T, Masumoto Y. Coherent propagation of femtosecond optical pulses in a monoclinic ZnP2 single crystal. Phys Rev Lett 1993; 71:2785-2788. [PMID: 10054775 DOI: 10.1103/physrevlett.71.2785] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Mishina T. [A case of ectopic vas deferens with a chief complaint of male sterility]. Hinyokika Kiyo 1993; 39:863-8. [PMID: 8213385] [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: 01/29/2023]
Abstract
A case of ectopic vas deferens in a 40-year-old male was reported. He visited our clinic with a complaint of male sterility for the past 10 years. Urological examinations revealed azoospermia, right renal aplasia and the ectopic insertion of right vas deferens into the right lower ureter with a blind-ending ureterocele. Bilateral testicular histological studies showed normal spermatogenesis in right testis and no spermatogenesis in left one. A vasovasostomy was performed. Sperm were seen in the semen 3 weeks after the operation. Including this patient, 54 cases (74 ectopic vas deferens) have been reported in the literature to date. The characteristics of age, subjective complaints, accompanied anomalies, diagnosis, treatment and the embryology are discussed.
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Affiliation(s)
- T Mishina
- Mishina Urological Office, Kyoto, Japan
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Mishina T, Chida H, Masumoto Y. Nonlinear luminescence of stacking-fault excitons in BiI3 induced by the exciton-exciton Auger process. Phys Rev B Condens Matter 1993; 48:1460-1463. [PMID: 10008504 DOI: 10.1103/physrevb.48.1460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kawazoe T, Masumoto Y, Mishina T. Spin-relaxation process of holes in type-II Al0.34Ga0.66As/AlAs multiple quantum wells. Phys Rev B Condens Matter 1993; 47:10452-10455. [PMID: 10005156 DOI: 10.1103/physrevb.47.10452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Mishina T. [Prostatic weight estimation by the regression equation using transrectal ultrasonotomography]. Nihon Hinyokika Gakkai Zasshi 1993; 84:291-6. [PMID: 7681888 DOI: 10.5980/jpnjurol1989.84.291] [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: 01/26/2023]
Abstract
The prostatic weight was evaluated in 264 patients with benign prostatic hyperplasia before transurethral resection of the prostate (TUR-P) by transrectal ultrasonotomography. In the first group of 121 among 132 patients, the weight of both the total prostate (EPWt) and the internal prostatic gland (EPWi) was estimated and compared to the actual weight of resected specimens (RPW). In the remaining 11 patients, EPWt was obtained but not EPWi because their prostatic gland echograms were obscure. The correlations between RPW and EPWi, and between RPW and EPWt in 121 patients were proved to be RPW = 0.999 EPWi-0.586 (r = 0.851), RPW = 0.537 EPWt-1.914 (r = 0.766), respectively. In the second group of 132 patients, the weight of the prostatic adenoma to be resected was estimated preoperatively by the measurement of EPWt and the application of the latter formula (CRPW). The correlation between RPW and CRPW was proved to be RPW = 0.930 CRPW-1.570 (r = 0.824). It is presumed from this study that preoperative estimation of EPWi or EPWt may be useful not only for selection of the treatment modality for BPH, namely TUR-P or open surgery, but also for prediction of an operation time in TUR-P.
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Sasaki F, Mishina T, Masumoto Y. Ultrafast pump-and-probe spectroscopy in CdSe: Hot-carrier and exciton dynamics. Phys Rev B Condens Matter 1992; 46:6750-6759. [PMID: 10002376 DOI: 10.1103/physrevb.46.6750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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47
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Mishina T, Masumoto Y, Fluegel B, Meissner K, Peyghambarian N. Observation of coherent optical phonons in BiI3. Phys Rev B Condens Matter 1992; 46:4229-4232. [PMID: 10004154 DOI: 10.1103/physrevb.46.4229] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Mishina T. [Clinical statistics on outpatients at Mishina urological office between July, 1984 and December, 1990]. Hinyokika Kiyo 1992; 38:367-72. [PMID: 1523996] [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: 12/27/2022]
Abstract
The total number of outpatients was 6,298. There were 4,293 males and 2,005 females, the male to female ratio being 2.1:1. The major diseases seen in the outpatients were benign prostatic hypertrophy, bladder dysfunction, chronic prostatitis, prostatic stones, ureteral stones, chronic cystitis, urethral stricture, and essential renal bleeding. The 102 (5.1%) patients with urethral diverticulum among 2,005 female patients were discovered by high pressure urethrography. There were 373 cases of urogenital malignancies including 205 of bladder tumor, 85 of prostatic carcinoma and 29 of renal tumor, 11 of which were incidentally found. Twenty of the 205 bladder tumors were found among the 703 cases of microhematuria.
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Abstract
In the present series of trials, Adriamycin (ADM) intravesical instillation therapy was found to be effective against tumors of papillary morphology measuring less than 10 mm in diameter that were of low pathological stage and low histological grade. The rate of complete disappearance increased in proportion to the concentration of ADM and the duration of retention of the drug, although the efficacy rates were almost the same in each trial. On the other hand, side effects on the bladder were reduced when the instilled solution was lower in concentration and the retention time was short.
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Affiliation(s)
- H Ohe
- Dept. of Urology, Kyoto Prefectural University of Medicine, Japan
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Mishina T, Masumoto Y. Exciton-hole collision in staggered type-II Al0.34Ga0.66As/AlAs multiple quantum wells. Phys Rev B Condens Matter 1991; 44:5664-5667. [PMID: 9998408 DOI: 10.1103/physrevb.44.5664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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