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Fujimoto Y, Kanzaki M, Meunpong P, Wachrinrat C, Waengsothorn S, Kitajima K. Legacy effects of canopy gaps on liana abundance 25 years later in a seasonal tropical evergreen forest in northeastern Thailand. Biotropica 2023. [DOI: 10.1111/btp.13218] [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: 03/30/2023]
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Nutiprapun P, Hermhuk S, Nanami S, Itoh A, Kanzaki M, Marod D. Effects of El Niño drought on seedling dynamics in a seasonally dry tropical forest in Northern Thailand. Glob Chang Biol 2023; 29:451-461. [PMID: 36273818 DOI: 10.1111/gcb.16466] [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] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
As El Niño is predicted to become stronger and more frequent in the future, it is crucial to understand how El Niño-induced droughts will affect tropical forests. Although many studies have focused on tropical rainforests, there is a paucity of studies on seasonally dry tropical forests (SDTFs), particularly in Asia, and few studies have focused on seedling dynamics, which are expected to be strongly affected by drought. Seedlings in SDTFs are generally more drought-tolerant than those in the rainforests, and the effects of El Niño-induced droughts may differ between SDTF and tropical rainforests. In this study, we explored the impact of El Niño-induced drought at an SDTF in northern Thailand by monitoring the seedling dynamics at monthly intervals for 7 years, including a period of strong El Niño. The effects were compared between two forest types in an SDTF: a deciduous dipterocarp forest (DDF), dominated by deciduous species, and an adjacent lower montane forest (LMF) with more evergreen species. El Niño-induced drought increased seedling mortality in both the forest types. The effect of drought was stronger in evergreen than in the deciduous species, resulting in higher mortality in the LMF during El Niño. However, El Niño increased seedling recruitment only in the DDF, mainly because of the massive recruitment of the deciduous oak, Quercus brandisiana (Fagaceae), which compensated for the mortality of seedlings in the DDF. As a result, El Niño increased seedling density in the DDF and decreased it in the LMF. This is the first long-term study to identify the differences in the impacts of El Niño on seedlings between the two forest types, and two leaf habits, evergreen and deciduous, in Southeast Asia. Our findings suggest that future climate change may alter the species composition and spatial distribution of seedlings in Asian SDTFs.
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Affiliation(s)
| | - Sutheera Hermhuk
- Faculty of Agricultural Production, Maejo University, Chiang Mai, Thailand
| | - Satoshi Nanami
- Graduate School of Science, Osaka City University, Osaka, Japan
- Graduate School of Science, Osaka Metropolitan University, Osaka, Japan
| | - Akira Itoh
- Graduate School of Science, Osaka City University, Osaka, Japan
- Graduate School of Science, Osaka Metropolitan University, Osaka, Japan
| | - Mamoru Kanzaki
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Dokrak Marod
- Faculty of Forestry, Kasetsart University, Bangkok, Thailand
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Ogawa Y, Bitoon Sadaba R, Kanzaki M. Stand structure, biomass, and net primary productivity of planted and natural mangrove forests in Batan Bay Estuary, Philippines. Tropics 2022. [DOI: 10.3759/tropics.ms21-13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Yuya Ogawa
- Graduate School of Agriculture, Kyoto University
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Monda Y, Kuwahara S, Aoki Y, Suzuki H, Kaneko T, Kozan O, Muhammad A, Susanti R, Gunawan H, Kanzaki M. Productivity of sago palms on smallholder plantations after rewetting in previously drained peatland: a case study on Tebing Tinggi Island, Riau Province, Indonesia. Tropics 2022. [DOI: 10.3759/tropics.ms21-15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Yukako Monda
- Graduate School of Agriculture, Kyoto University
| | | | - Yoritaka Aoki
- Graduate School of Asian and African Area Studies, Kyoto University
| | | | | | | | - Ahmad Muhammad
- Faculty of Mathematics and Natural Sciences, Riau University
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Komada N, Itioka T, Nakanishi A, Tagane S, Shimizu-kaya U, Nakagawa M, Meleng P, Pungga RAS, Kanzaki M. Effects of host tree size on the species richness and abundance of epiphyte assemblages in a Bornean lowland tropical forest. Tropics 2022. [DOI: 10.3759/tropics.ms21-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | - Takao Itioka
- Graduate School of Human and Environmental Studies, Kyoto University
| | | | | | | | | | - Paulus Meleng
- Research, Development and Innovation Division, Forest Department Sarawak
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Sasaki A, Kanzaki M, Mochizuki K, Choocharoen C, Preechapanya P. Aboveground biomass and carbon sequestration potential of tea and shade trees in <i>Miang</i> tea gardens, an agroforestry system in Northern Thailand. Tropics 2021. [DOI: 10.3759/tropics.ms20-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Ayako Sasaki
- College of Bioresource Sciences, Nihon University
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Okumura T, Boku N, Hishida T, Ohde Y, Sakao Y, Yoshiya K, Higashiyama M, Kameyama K, Adachi H, Shiomi K, Kanzaki M, Yoshimura M, Matsuura M, Hata Y, Chen F, Yoshida K, Sasaki H, Hyodo I, Mori K, Kondo H. Impact of response to preoperative chemotherapy on the outcome of pulmonary metastasectomy for colorectal cancer: Results of a retrospective multicenter study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.060] [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: 11/13/2022] Open
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Amma S, Toju H, Wachrinrat C, Sato H, Tanabe AS, Artchawakom T, Kanzaki M. Composition and Diversity of Soil Fungi in Dipterocarpaceae-Dominated Seasonal Tropical Forests in Thailand. Microbes Environ 2018; 33:135-143. [PMID: 29848838 PMCID: PMC6031388 DOI: 10.1264/jsme2.me17168] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 02/13/2018] [Indexed: 11/25/2022] Open
Abstract
Although fungi play essential roles in nutrient cycles and plant growth in forest ecosystems, limited information is currently available on the community compositions of soil fungi in tropical forests. Few studies have examined fungal community structures in seasonal tropical forests, in which forest fires potentially have a large impact on above- and belowground community processes. Based on high-throughput sequencing technologies, we herein examined the diversity and community structures of soil fungi in dry seasonal tropical forests in Sakaerat, northeast Thailand. We found that fungal community compositions diverged among dry evergreen, dry deciduous, and fire-protected dry deciduous forests within the region. Although tree species diversity did not positively correlate with soil fungal diversity, the coverage of an understory bamboo species (Vietnamosasa pusilla) showed a strong relationship with fungal community structures. Our community ecological analysis also yielded a list of fungi showing habitat preferences for either of the neighboring evergreen and deciduous forests in Sakaerat. The present results provide a basis for managing soil fungal communities and aboveground plant communities in seasonal tropical forests in Southeast Asia.
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Affiliation(s)
- Sarasa Amma
- Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto UniversityKitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606–8502Japan
| | - Hirokazu Toju
- Center for Ecological Research, Kyoto University509–3, 2-chome, Hirano, Otsu, Shiga, 520–2113Japan
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology AgencyKawaguchi, Saitama 332–0012Japan
| | - Chongrak Wachrinrat
- Department of Silviculture, Faculty of Forestry, Kasetsart UniversityBangkokThailand
| | - Hirotoshi Sato
- Department of Environmental Solution Technology, Faculty of Science & Technology, Ryukoku UniversitySeta-Oe, Otsu, 520–2194 ShigaJapan
| | - Akifumi S. Tanabe
- Department of Biology, Graduate School of Science, Kobe University1–1 Rokkodai, Nada-ku, Kobe, 657–8501Japan
| | - Taksin Artchawakom
- Sakaerat Environmental Research Station, Wang Nam KhiaoWang Nam Khiao-District, Nakon Ratchashima, 30370Thailand
| | - Mamoru Kanzaki
- Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto UniversityKitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606–8502Japan
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Maeda M, Kanzaki M, Uesaka Y, Shimizu J. Fascia in inflammatory myopathies: Histopathological findings. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2294] [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: 11/28/2022]
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Phyu Lwin P, Kanzaki M. Species composition, diversity, and stand structure of tropical lower montane forests resulting from various human impacts on the Shan Plateau, eastern Myanmar. Tropics 2017. [DOI: 10.3759/tropics.ms17-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Phyu Phyu Lwin
- Graduate School of Agriculture, Kyoto University
- Present address: Forest Research Institute, Forest Department, Ministry of Natural Resources and Environmental Conservation, Myanmar
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Izuno A, Kanzaki M, Artchawakom T, Wachrinrat C, Isagi Y. Vertical Structure of Phyllosphere Fungal Communities in a Tropical Forest in Thailand Uncovered by High-Throughput Sequencing. PLoS One 2016; 11:e0166669. [PMID: 27861539 PMCID: PMC5115777 DOI: 10.1371/journal.pone.0166669] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 07/25/2015] [Accepted: 11/02/2016] [Indexed: 01/27/2023] Open
Abstract
Phyllosphere fungi harbor a tremendous species diversity and play important ecological roles. However, little is known about their distribution patterns within forest ecosystems. We examined how species diversity and community composition of phyllosphere fungi change along a vertical structure in a tropical forest in Thailand. Fungal communities in 144 leaf samples from 19 vertical layers (1.28-34.4 m above ground) of 73 plant individuals (27 species) were investigated by metabarcoding analysis using Ion Torrent sequencing. In total, 1,524 fungal operational taxonomic units (OTUs) were detected among 890,710 reads obtained from the 144 leaf samples. Taxonomically diverse fungi belonging to as many as 24 orders of Ascomycota and 21 orders of Basidiomycota were detected, most of which inhabited limited parts of the lowest layers closest to the forest floor. Species diversity of phyllosphere fungi was the highest in the lowest layers closest to the forest floor, decreased with increasing height, and lowest in the canopy; 742 and 55 fungal OTUs were detected at the lowest and highest layer, respectively. On the layers close to the forest floor, phyllosphere fungal communities were mainly composed of low frequency OTUs and largely differentiated among plant individuals. Conversely, in the canopy, fungal communities consisted of similar OTUs across plant individuals, and as many as 86.1%-92.7% of the OTUs found in the canopy (≥22 m above ground) were also distributed in the lower layers. Overall, our study showed the variability of phyllosphere fungal communities along the vertical gradient of plant vegetation and environmental conditions, suggesting the significance of biotic and abiotic variation for the species diversity of phyllosphere fungi.
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Affiliation(s)
- Ayako Izuno
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Mamoru Kanzaki
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | | | | | - Yuji Isagi
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
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Shiono S, Okumura T, Boku N, Hishida T, Ohde Y, Sakao Y, Yoshiya K, Higashiyama M, Kameyama K, Adachi H, Shiomi K, Kanzaki M, Yoshimura M, Matsuura M, Hata Y, Chen F, Yoshida K, Sasaki H, Horio H, Takenoyama M, Yamashita M, Hashimoto T, Fujita A, Okumura M, Funai K, Asano H, Suzuki M, Shiraishi Y, Nakayama M, Yamada S, Hoshi E, Yamazaki N, Matsuo T, Miyazawa H, Sato Y, Takao M, Nakamura H, Nakayama H, Shimizu K, Watanabe T, Suzuki H, Kataoka M, Tsunezuka Y, Akamine S, Kadokura M, Hyodo I, Nakata M, Mori K, Kondo H. O-089OUTCOMES OF SEGMENTECTOMY AND WEDGE RESECTION FOR PULMONARY COLORECTAL CANCER METASTASES. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.88] [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: 11/14/2022] Open
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Anderson-Teixeira KJ, Davies SJ, Bennett AC, Gonzalez-Akre EB, Muller-Landau HC, Wright SJ, Abu Salim K, Almeyda Zambrano AM, Alonso A, Baltzer JL, Basset Y, Bourg NA, Broadbent EN, Brockelman WY, Bunyavejchewin S, Burslem DFRP, Butt N, Cao M, Cardenas D, Chuyong GB, Clay K, Cordell S, Dattaraja HS, Deng X, Detto M, Du X, Duque A, Erikson DL, Ewango CEN, Fischer GA, Fletcher C, Foster RB, Giardina CP, Gilbert GS, Gunatilleke N, Gunatilleke S, Hao Z, Hargrove WW, Hart TB, Hau BCH, He F, Hoffman FM, Howe RW, Hubbell SP, Inman-Narahari FM, Jansen PA, Jiang M, Johnson DJ, Kanzaki M, Kassim AR, Kenfack D, Kibet S, Kinnaird MF, Korte L, Kral K, Kumar J, Larson AJ, Li Y, Li X, Liu S, Lum SKY, Lutz JA, Ma K, Maddalena DM, Makana JR, Malhi Y, Marthews T, Mat Serudin R, McMahon SM, McShea WJ, Memiaghe HR, Mi X, Mizuno T, Morecroft M, Myers JA, Novotny V, de Oliveira AA, Ong PS, Orwig DA, Ostertag R, den Ouden J, Parker GG, Phillips RP, Sack L, Sainge MN, Sang W, Sri-Ngernyuang K, Sukumar R, Sun IF, Sungpalee W, Suresh HS, Tan S, Thomas SC, Thomas DW, Thompson J, Turner BL, Uriarte M, Valencia R, Vallejo MI, Vicentini A, Vrška T, Wang X, Wang X, Weiblen G, Wolf A, Xu H, Yap S, Zimmerman J. CTFS-ForestGEO: a worldwide network monitoring forests in an era of global change. Glob Chang Biol 2015; 21:528-49. [PMID: 25258024 DOI: 10.1111/gcb.12712] [Citation(s) in RCA: 267] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 07/06/2014] [Indexed: 05/10/2023]
Abstract
Global change is impacting forests worldwide, threatening biodiversity and ecosystem services including climate regulation. Understanding how forests respond is critical to forest conservation and climate protection. This review describes an international network of 59 long-term forest dynamics research sites (CTFS-ForestGEO) useful for characterizing forest responses to global change. Within very large plots (median size 25 ha), all stems ≥ 1 cm diameter are identified to species, mapped, and regularly recensused according to standardized protocols. CTFS-ForestGEO spans 25 °S-61 °N latitude, is generally representative of the range of bioclimatic, edaphic, and topographic conditions experienced by forests worldwide, and is the only forest monitoring network that applies a standardized protocol to each of the world's major forest biomes. Supplementary standardized measurements at subsets of the sites provide additional information on plants, animals, and ecosystem and environmental variables. CTFS-ForestGEO sites are experiencing multifaceted anthropogenic global change pressures including warming (average 0.61 °C), changes in precipitation (up to ± 30% change), atmospheric deposition of nitrogen and sulfur compounds (up to 3.8 g N m(-2) yr(-1) and 3.1 g S m(-2) yr(-1)), and forest fragmentation in the surrounding landscape (up to 88% reduced tree cover within 5 km). The broad suite of measurements made at CTFS-ForestGEO sites makes it possible to investigate the complex ways in which global change is impacting forest dynamics. Ongoing research across the CTFS-ForestGEO network is yielding insights into how and why the forests are changing, and continued monitoring will provide vital contributions to understanding worldwide forest diversity and dynamics in an era of global change.
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Affiliation(s)
- Kristina J Anderson-Teixeira
- Center for Tropical Forest Science-Forest Global Earth Observatory, Smithsonian Tropical Research Institute, Panama, Republic of Panama; Conservation Ecology Center, Smithsonian Conservation Biology Institute, National Zoological Park, Front Royal, VA, USA
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Inada T, Kitajima K, Kanzaki M, Ano W, Hardiwitono S, Sadono R, Setyanto PE, Saminto. Neighboring tree effect on the survival and growth of <i>Shorea johorensis</i> under a line planting system in a Bornean dipterocarp forest. Tropics 2015. [DOI: 10.3759/tropics.24.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Tomoya Inada
- Graduate School of Agriculture, Kyoto University
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Yagi S, Shirai M, Kanzaki M, Nakayama M, Utsunomiya T, Sugimoto K, Ohtani H, Harada M. 424. Laparoscopy endoscopy cooperation partial gastrectomy. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.414] [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: 10/24/2022] Open
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Yoshimura K, Ishii N, Hamada T, Abe T, Ono F, Hashikawa K, Fukuda S, Ohyama B, Koga H, Sogame R, Teye K, Ochiai T, Nakajima H, Nakajima K, Iijima S, Kanzaki M, Kojima K, Nagatani T, Fujimoto W, Karashima T, Nakama T, Ohata C, Furumura M, Tsuruta D, Hashimoto T. Clinical and immunological profiles in 17 Japanese patients with drug‐induced pemphigus studied at Kurume University. Br J Dermatol 2014; 171:544-53. [DOI: 10.1111/bjd.12925] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2013] [Indexed: 11/30/2022]
Affiliation(s)
- K. Yoshimura
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - N. Ishii
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - T. Hamada
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - T. Abe
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - F. Ono
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - K. Hashikawa
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - S. Fukuda
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - B. Ohyama
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - H. Koga
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - R. Sogame
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - K. Teye
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - T. Ochiai
- Department of Dermatology Surugadai Nihon University Hospital Tokyo Japan
| | - H. Nakajima
- Department of Dermatology Kochi University School of Medicine Kochi Japan
| | - K. Nakajima
- Department of Dermatology Kochi University School of Medicine Kochi Japan
| | - S. Iijima
- Department of Dermatology Mito Saiseikai General Hospital Mito Ibaraki Japan
| | - M. Kanzaki
- Department of Dermatology Mito Saiseikai General Hospital Mito Ibaraki Japan
| | - K. Kojima
- Department of Dermatology Kanazawa Medical University School of Medicine Ishikawa Japan
| | - T. Nagatani
- Department of Dermatology Hachioji Medical Center of Tokyo Medical University Tokyo Japan
| | - W. Fujimoto
- Department of Dermatology Kawasaki Medical School of Medicine Okayama Japan
| | - T. Karashima
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - T. Nakama
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - C. Ohata
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - M. Furumura
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - D. Tsuruta
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
- Department of Dermatology Osaka City University Graduate School of Medicine Osaka Japan
| | - T. Hashimoto
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
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Inada T, Ano W, Hardiwinoto S, Sadono R, Eko Setyanto P, Saminto, Kanzaki M. Effects of logging and line planting treatment on canopy openness in logged-over forests in Bornean lowland dipterocarp forest. Tropics 2013. [DOI: 10.3759/tropics.22.89] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nakanishi A, Sungpalee W, Sri-ngernyuang K, Kanzaki M. Determination of epiphyte biomass composition and distribution with a three-dimensional mapping method in a tropical montane forest in northern Thailand. Tropics 2013. [DOI: 10.3759/tropics.22.27] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Okajima M, Kanzaki M, Ishibashi Y, Wada Y, Hino F, Kitahara Y, Shimokawa K, Ishii F. In vitro bactericidal activity against periodontopathic bacteria by electrolyzed ion-reduced water. Drug Discov Ther 2012; 5:306-10. [PMID: 22466442 DOI: 10.5582/ddt.2011.v5.6.306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
As typical periodontopathic bacteria, Porphyromonas gingivalis (P. gingivalis) and Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans) were exposed to electrolyzed ion-reduced water (ERI) and ERI containing 1% sodium carboxymethylcellulose (CMC-Na) (ERI-1% CMC-Na), and the time course of their bactericidal action was evaluated. More than 99% of each bacteria species were killed after exposure to each solution for 15 sec. In addition, 1% CMC-Na, which was added to prolong bactericidal action, did not affect the bactericidal action of ERI. Its bactericidal action was concentration-dependent. No viable P. gingivalis bacteria were observed at a concentration of 15% of the undiluted solution and no viable A. actinomycetemcomitans bacteria were observed at a concentration of 50%, indicating differences in the bactericidal action of ERI for the two bacteria species. These results suggest that ERI may be extremely useful in preventing and treating periodontal diseases.
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Affiliation(s)
- M Okajima
- Department of Pharmaceutical Sciences, Meiji Pharmaceutical University, Tokyo, Japan
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Thant YM, Kanzaki M, Ohta S, Than MM. Carbon sequestration by mangrove plantations and a natural regeneration stand in the Ayeyarwady Delta, Myanmar. Tropics 2012. [DOI: 10.3759/tropics.21.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Matsumoto T, Kanzaki M, Amiki M, Shimizu T, Maeda H, Sakamoto K, Ookubo Y, Onuki T. Comparison of three software programs for three-dimensional graphic imaging as contrasted with operative findings. Eur J Cardiothorac Surg 2011; 41:1098-103. [DOI: 10.1093/ejcts/ezr152] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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22
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Natuhara Y, Imanishi A, Kanzaki M, Southavong S, Duangvongsa I. Uses of trees in paddy fields in Champasak Province, southern Lao PDR. Landscape Ecol Eng 2011. [DOI: 10.1007/s11355-011-0172-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Oyama K, Onuki T, Kanzaki M, Isaka T, Kikkawa T, Shimizu T, Sakamoto K, Komine H, Murasugi M. [Video-assisted thoracic surgery for pneumothorax in patients over fifty years of age]. Kyobu Geka 2011; 64:275-279. [PMID: 21491720] [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
BACKGROUND Pneumothorax in middle-aged and elderly patients has various different features from young patients. We set out to investigate the outcome and usefulness of video-assisted thoracic surgery (VATS) in this group. PATIENTS AND METHODS From January 1993 to August 2010, 168 patients underwent a total of 178 thoracoscopic surgeries. There were 160 men and 8 women with mean age of 67 (range, 50 to 85). The average duration of thoracic drainage before surgery was 7.4 days. We excised only responsible lesions as minimum degree of dissection as possible. When patients have intractable air leakage and chest computed tomography (CT) indicates severe pleural adhesions, pleurography should be performed to locate the site of air leakage and determine surgical approaches. One hundred and seventy patients were treated with the lateral approach, while 8 patients were successfully treated with the anterior approach. One hundred and fifty-one patients were treated with VATS alone, and 27 patients were treated with the combination of VATS and small thoracotomy. The duration of chest tube drainage, hospital stay, post-operative complication, outcome and recurrence were assessed. RESULTS The air leakages stopped and all patients except for 2 patents were discharged without drainage tubes. Postoperative drainage time was 4.5 +/- 3.4 days. Postoperative hospital stay was 9.9 +/- 13.9 days. One patient died caused by perioperative myocardial infarction. Seventeen patients died of other diseases. Seven patients needed local hospital treatments and the recurrence rate was 3.9%. CONCLUSION VATS for pneumothorax in patients over 50 years old is very useful by appropriate perioperative managements.
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Affiliation(s)
- K Oyama
- Department of Surgery I, Tokyo Women's Medical University, Tokyo, Japan
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24
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Brazhkin VV, Farnan I, Funakoshi KI, Kanzaki M, Katayama Y, Lyapin AG, Saitoh H. Structural transformations and anomalous viscosity in the B2O3 melt under high pressure. Phys Rev Lett 2010; 105:115701. [PMID: 20867586 DOI: 10.1103/physrevlett.105.115701] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Indexed: 05/29/2023]
Abstract
Liquid B2O3 represents an archetypical oxide melt with a superhigh viscosity at the melting temperature. We present the results of the in situ x-ray diffraction study and the in situ viscosity measurements of liquid B2O3 under high pressure up to 8 GPa. Additionally, the 11B solid state NMR spectroscopy study of B2O3 glasses quenched from the melt at five different pressures has been carried out. Taken together, the results obtained provide understanding of the nature of structural transformations in liquid B2O3. The fraction of the boroxol rings in the melt structure rapidly decreases with pressure. From pressures of about 4.5 GPa, four-coordinated boron states begin to emerge sharply, reaching the fraction 40%-45% at 8 GPa. The viscosity of the B2O3 melt along the melting curve drops by 4 orders of magnitude as the pressure increases up to 5.5 GPa and remains unchanged on further pressure increase.
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Affiliation(s)
- V V Brazhkin
- Institute for High Pressure Physics RAS, 142190 Troitsk Moscow region, Russia.
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25
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Mitsui H, Okamoto T, Kanzaki M, Inozume T, Shibagaki N, Shimada S. Intradermal injections of polyarginine-containing immunogenic antigens preferentially elicit Tc1 and Th1 activation and antitumour immunity. Br J Dermatol 2009; 162:29-41. [DOI: 10.1111/j.1365-2133.2009.09490.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Matsumoto T, Kanzaki M, Wachi N, Onuki T. [Surgically treated chest wall schwannoma without entering the pleural space utilizing ultrasonography]. Kyobu Geka 2009; 62:557-559. [PMID: 19588826] [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: 05/28/2023]
Abstract
We report a case of surgically treated chest wall schwannoma without entering the pleural space utilizing ultrasonography. A 19-year-old woman was admitted for an abnormal shadow on a routine health checkup. Roentgenologic examination of the chest showed a 2 cm left chest wall mass. Chest computed tomography revealed a heterogeneous mass with obtuse angles characteristic of a pleural-based lesion. Under general anesthesia, the patient was placed in the right decubitous position. Chest wall ultrasonography defined a mass in the intercostal space. A 2.5 cm skin incision was made on the tumor. The tumor arising from the intercostal nerve was surgically removed without entering the pleural space. The pathological examination revealed a benign schwannoma. Postoperative course was uneventful and she discharged 2 days later. Six years later the patient is well without recurrence.
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Affiliation(s)
- T Matsumoto
- Department of Surgery I, Tokyo Women's Medical University, Tokyo, Japan
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27
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Wu X, Steinle-Neumann G, Qin S, Kanzaki M, Dubrovinsky L. Pressure-induced phase transitions of AX(2)-type iron pnictides: an ab initio study. J Phys Condens Matter 2009; 21:185403. [PMID: 21825462 DOI: 10.1088/0953-8984/21/18/185403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
An investigation into the high-pressure behavior of AX(2)-type iron pnictides was conducted using first-principles calculations based on density functional theory within the generalized gradient approximation. Our results demonstrate that a phase transition from the marcasite to the CuAl(2) occurs at 108 GPa for FeP(2), at 92 GPa for FeAs(2), and at 38 GPa for FeSb(2), accompanying a semiconductor-to-metal crossover. A linear relationship between bulk moduli and the inverse specific volume is proposed to be B(0) = 17 498/V(0)-45.9 GPa for the marcasite-type phase and B(0) = 31 798/V(0)-67.5 GPa for the CuAl(2)-type phase. According to the observed structural evolutions, we claim that the regular marcasite transforms to the CuAl(2)-type phase and the anomalous marcasite transforms to the pyrite-type phase at high pressures.
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Affiliation(s)
- X Wu
- Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany
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28
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Brazhkin VV, Kanzaki M, Funakoshi KI, Katayama Y. Viscosity behavior spanning four orders of magnitude in As-S melts under high pressure. Phys Rev Lett 2009; 102:115901. [PMID: 19392217 DOI: 10.1103/physrevlett.102.115901] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2008] [Indexed: 05/27/2023]
Abstract
Under compression, the As-S liquids are subject to transformations, including polymerization and metallization. We have measured the viscosity of the As-S liquids under high pressures. As a result, large viscosity variations by 4-5 orders of magnitude have been revealed. The viscosity values of the As-S liquids are moderate in the molecular state, very high in the covalent state, and low in the metallic state. Therefore, predicting the viscosity behavior in other melts under pressure is possible, which is of considerable importance for the physics of glass transition, geophysics, and material science.
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Affiliation(s)
- V V Brazhkin
- Institute for High Pressure Physics RAS, 142190 Troitsk Moscow Region, Russia.
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29
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Kanzaki M, Kaida K, Ueda M, Morita D, Hirakawa M, Motoyoshi K, Kamakura K, Kusunoki S. Ganglioside complexes containing GQ1b as targets in Miller Fisher and Guillain-Barre syndromes. J Neurol Neurosurg Psychiatry 2008; 79:1148-52. [PMID: 18339728 DOI: 10.1136/jnnp.2007.142950] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Serum antibodies to GQ1b are associated with Miller Fisher syndrome (MFS) and Guillain-Barré syndrome (GBS) with ophthalmoplegia. Antibodies to ganglioside complexes (GSCs) have not yet been examined in a large population of patients with MFS or GBS. This study aimed to determine the clinical significance of antibodies to GSCs in MFS and GBS. METHODS The study investigated serum anti-GSC antibodies and the clinical features in 64 MFS patients, 53 GBS patients with ophthalmoplegia (GBS-OP(+)) and 53 GBS patients without ophthalmoplegia (GBS-OP(-)). RESULTS Thirty patients with MFS (47%), 25 with GBS-OP(+) (47%) and none with GBS-OP(-) had antibodies to GSCs containing GQ1b or GT1a. Patients with MFS and GBS-OP(+) were subdivided according to the antibody reactivities; patients with antibodies specific to GQ1b and/or GT1a (without anti-GSCs antibodies) were placed in Group 1, those with antibodies against GSCs with a total of two sialic acids in the terminal residues, such as GQ1b/GM1, were placed in Group 2, and those with antibodies against GSCs with a total of three sialic acids in the terminal residue, such as GQ1b/GD1a, were placed in Group 3. In MFS, sensory disturbances were infrequent in Group 2 compared with the other groups (p<0.0001). Antibodies specific to GQ1b were observed more often in MFS than in GBS-OP(+) (p = 0.0002). CONCLUSIONS IgG antibodies to GSCs containing GQ1b or GT1a were closely associated with the development of ophthalmoplegia in GBS, as well as MFS. Both GQ1b and clustered epitopes of GSCs containing GQ1b or GT1a may be prime target antigens for MFS and GBS-OP(+).
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Affiliation(s)
- M Kanzaki
- Division of Neurology, Internal Medicine 3, National Defense Medical College, Saitama, Japan
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30
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Ohtsuka H, Kanzaki M, Imamura K, Kikkawa T, Obara T, Ishizawa M, Takahara Y, Matsumoto J. [Adult Bochdalek hernia with volvulus of the stomach]. Kyobu Geka 2008; 61:877-880. [PMID: 18788379] [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: 05/26/2023]
Abstract
We report a rare case of Bochdalek hernia, congenital posterolateral diaphragmatic hernia with volvulus of the stomach, in an adult A 74-year-old man was admitted to our hospital complaining of sudden abdominal pain and vomiting. Roentgenologic examination of the chest showed air above the left diaphragm, and the mediastinum was displaced to the right. Upper gastrointestinal series revealed volvulus of the stomach in which the pylorus was displaced to the left. The surgical repair was done through left thoracotomy with combining laparoscopy and thoracoscopy without surgical complications, 1 year later the patient is asymptomatic.
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Affiliation(s)
- H Ohtsuka
- Department of Thoracic Surgery, Tokyo Metropolitan Fuchu Hospital, Fuchu, Japan
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31
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Miyano Y, Kanzaki M, Obara T, Ohnuki T. [Multiple calcifying fibrous pseudotumor of the pleura]. Kyobu Geka 2008; 61:857-860. [PMID: 18788375] [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: 05/26/2023]
Abstract
A newly recognized distinctive fibrous soft tissue lesion called "calcifying fibrous pseudotumor" (CFPT) was recently described in the soft tissue of the extremities, trunk, scrotum, groin, neck, or axilla. But CFPT orgining from the pleura is rare. A 44-year-old woman was admitted to our hospital for an investigation of a chest radiographic abnormality. The complete resection was performed through mini-thoracotomy utilizing video assisted thoracoscopic surgery. Microscopically, the lesion was mostly composing dense collagenous tissue and scattered calcifications. The postoperative course was uneventful and no recurrence is observed 18 months after operation. We report succsessful surgical treatment for multiple CFPTs.
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Affiliation(s)
- Y Miyano
- Department of Thoracic Surgery, Tokyo Metropolitan Fuchu Hospital, Fuchu, Japan
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32
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Naito Y, Kanzaki M, Numata S, Obayashi K, Konuma A, Nishimura S, Ohta S, Tsumura Y, Okuda T, Lee SL, Muhammad N. Size-related flowering and fecundity in the tropical canopy tree species, Shorea acuminata (Dipterocarpaceae) during two consecutive general flowerings. J Plant Res 2008; 121:33-42. [PMID: 17943228 DOI: 10.1007/s10265-007-0116-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2007] [Accepted: 08/13/2007] [Indexed: 05/25/2023]
Abstract
We monitored the reproductive status of all trees with diameters at breast height (dbh) >30 cm in a 40-ha plot at Pasoh, west Malaysia, and investigated the individual fecundity of 15 Shorea acuminata Dyer (Dipterocarpaceae) trees using seed-trapping methods during two consecutive general flowering periods in 2001 (GF2001) and 2002 (GF2002). The proportion of flowering trees was higher, and not dependent on size, in GF2002 (84.2%), than in GF2001 (54.5%), when flowering mainly occurred in trees with a dbh < or =70 cm. Fecundity parameters of individual trees per event varied widely (221,000-35,200,000 flowers, 0-139,000 mature seeds, and 1.04-177 kg total dry matter mass of fruit (TDM) per tree). Monotonic increases with increasing tree size were observed for flower production and TDM amongst trees up to 90 cm in dbh, but not for mature seed production or for any of these parameters amongst larger trees. The pattern of reproductive investment during the two consecutive reproductive events clearly differed between medium-sized and large trees; the former concentrated their reproductive investment in one of the reproductive events whereas the latter allocated their investment more evenly to both reproductive events. Our results suggest size-related differences in the resource allocation pattern for reproduction.
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Affiliation(s)
- Yoko Naito
- Laboratory of Tropical Forest Resources and Environments, Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake, Sakyo, Kyoto 606-8502, Japan.
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Abstract
Viscosity is one of the fundamental physical properties of liquids; for different melts it varies in an extremely wide range. Selenium is among the first elementary substances to have manifested, at compression, a phase transformation in the liquid state accompanied by melt metallization. Direct measurements by means of a real-time radiography show that the viscosity of liquid Se under pressure drops by 500 times to a very low level of 8 mPa s. This is the first case of viscosity measurements being performed both for a relatively viscous semiconducting state and a low-viscous metallic state of the same liquid substance. The viscosity of the Se melt strongly decreases with pressure along the melting curve in a semiconducting state and experiences a further significant drop at melt metallization. A similar phenomenon is expected to be observed in many chalcohenide, halogenide, and oxide melts.
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Affiliation(s)
- V V Brazhkin
- Institute for High Pressure Physics RAS, 142190 Troitsk Moscow region, Russia.
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34
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Hatsushika K, Hirota T, Harada M, Sakashita M, Kanzaki M, Takano S, Doi S, Fujita K, Enomoto T, Ebisawa M, Yoshihara S, Sagara H, Fukuda T, Masuyama K, Katoh R, Matsumoto K, Saito H, Ogawa H, Tamari M, Nakao A. Transforming growth factor-beta(2) polymorphisms are associated with childhood atopic asthma. Clin Exp Allergy 2007; 37:1165-74. [PMID: 17651146 DOI: 10.1111/j.1365-2222.2007.02768.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Transforming growth factor (TGF)-beta plays an important role in the regulation of airway inflammation and remodelling in asthma. Recent studies suggest that TGF-beta(2) is a predominant isoform expressed in severe asthma and it is also associated with airway remodelling. OBJECTIVE To determine whether the polymorphisms in TGF-beta(2) are associated with childhood atopic bronchial asthma in a Japanese population. METHODS We identified a total of eight polymorphisms and characterized the linkage disequilibrium (LD) mapping of the gene. Three variants in the promoter and 3'UTR were genotyped, and we conducted an association study of TGF-beta(2) (childhood atopic asthma n=297, normal controls n=555). An association analysis of these variants and an expression and functional analysis were performed. RESULTS 3'UTR 94862T >A was found to be significantly associated with the risk of childhood atopic asthma (P=0.00041). The -109-->ACAA ins promoter variant was also associated with the risk of childhood atopic asthma (P=0.0037). TGF-beta(2) expression was observed in both the normal and asthmatic bronchial epithelium, and both real-time PCR and an ELISA showed a significant basal and TGF-beta(1)-induced TGF-beta(2) expression in the bronchial epithelial cell line BEAS2B. Furthermore, the promoter variant -109-->ACAA ins increased the TGF-beta(2) promoter-reporter activity in BEAS2B cells. CONCLUSIONS Our data suggest that TGF-beta(2) may therefore be involved in the development of childhood atopic asthma by means of functional genetic polymorphism. The polymorphisms in TGF-beta(2) may become important information for asthma susceptibility in children.
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Affiliation(s)
- K Hatsushika
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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35
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Kinomura M, Sugiyama H, Saito T, Matsunaga A, Sada KE, Kanzaki M, Takazawa Y, Maeshima Y, Yanai H, Makino H. A novel variant apolipoprotein E Okayama in a patient with lipoprotein glomerulopathy. Nephrol Dial Transplant 2007; 23:751-6. [DOI: 10.1093/ndt/gfm675] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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36
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Kanzaki M, Adachi K, Takuma K, Matsumoto J, Obara T, Miyano Y, Sasano S. [Esophago-bronchial fistula confirmed with bronchoscopy utilized an indocyanine green]. Kyobu Geka 2007; 60:910-4. [PMID: 17877011] [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: 05/17/2023]
Abstract
The patient was a 54-year-old female with both headache and vomit presented to the emergency room. Endoscopic examination revealed an advanced esophageal cancer located on the middle thoracic esophagus. Histological analysis revealed squamous cell carcinoma. The clinical stage was diagnosed as T4N2M0 and this case was treated by the chemoradiation. She presented progressive moist cough after chemoradiotherapy. Esophagography demonstrated esophago-bronchial fistula (EBF). EBF was not detected by routine broncoscopy. To confirm fistula, we were performed the bronchoscopy which utilized an indocyanine green. Contrast media colored green were over from the superior segmental bronchus in a bronchoscope. The bronchoscope which utilized an indocyanine green is effective for EBF.
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Affiliation(s)
- M Kanzaki
- Department of Thoracic Surgery, Tokyo Metropolitan Fuchu Hospital, Fuchu, Japan
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37
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Kaida K, Morita D, Kanzaki M, Kamakura K, Motoyoshi K, Hirakawa M, Kusunoki S. Anti-ganglioside complex antibodies associated with severe disability in GBS. J Neuroimmunol 2007; 182:212-8. [PMID: 17113161 DOI: 10.1016/j.jneuroim.2006.09.013] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2006] [Revised: 09/08/2006] [Accepted: 09/27/2006] [Indexed: 10/23/2022]
Abstract
Ganglioside complexes (GSCs) are known as target antigens in Guillain-Barré syndrome (GBS). To elucidate the clinical importance of the anti-GSC antibodies in GBS, we investigated serum antibodies to GSCs containing two of the gangliosides, GM1, GD1a, GD1b and GT1b, and analyzed clinical features of anti-GSC-positive GBS patients. Thirty-nine (17%) of 234 GBS patients had IgG anti-GSC antibodies. Anti-GSC-positive GBS had antecedent gastrointestinal infection and lower cranial nerve deficits more frequently than control GBS. The presence of antibody specificity to GD1a/GD1b and/or GD1b/GT1b was significantly associated with severe disability and a requirement for mechanical ventilation.
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Affiliation(s)
- K Kaida
- Third Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Saitama-ken, 359-8513, Japan
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38
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Kanzaki M, Obara T, Sasano S, Isaka T, Miyano Y, Onuki T. [New forceps for a sutureless patch technique using sheet materials]. Kyobu Geka 2006; 59:1086-8. [PMID: 17094546] [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: 05/12/2023]
Abstract
Intraoperative air leaks are often treated by a sutureless patch technique using a fibrin tissue-adhesive collagen fleece or synthetic materials with fibrin sealant. Intraoperatively, the technique of using these materials has been troublesome, therefore air leaks fail to close. Akicette has been applied as an easy sutureless patch technique for air leaks. Seven air leaks (5 were lung cancers, 2 were spontaneous pneumothorax) were treated with Akicette. Akicette is simple to operate with, and can easily carry sheet materials. Using Akicette, the sheet materials tightly adhered onto surrounding the pleural defect without any sliding on the wet lung surface. Akicette is feasible tool for a sutureless patch technique and is useful to easily place the sheet materials.
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Affiliation(s)
- M Kanzaki
- Department of Surgery, Tokyo Metropolitan Fuchu Hospital, Tokyo, Japan
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39
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Abstract
BACKGROUND Some ganglioside complexes (GSCs) are target antigens for serum antibodies in patients with Guillain-Barré syndrome (GBS). Anti-GSC antibodies may be associated with particular clinical features of GBS. OBJECTIVE To investigate antibodies to GSCs in the sera of patients with Miller Fisher syndrome (MFS) characterised by elevation of the IgG anti-GQ1b antibody. RESULTS In all, 7 of 12 (58%) consecutive patients with MFS were found to have IgG antibodies to GSCs containing GQ1b, of whom 5 had IgG antibodies to GQ1b-GM1 complex (GQ1b/GM1) and 2 had antibodies to GQ1b/GD1a; 4 of 5 patients without sensory symptoms had anti-GQ1b/GM1 antibodies. CONCLUSIONS At least three different specificities in MFS-associated antibodies, GQ1b-specific, anti-GQ1b/GM1-positive and anti-GQ1b/GD1a-positive, were observed. In patients with MFS not only GQ1b itself but also clustered epitopes of GSCs, including GQ1b, may be considered to be prime target antigens for serum antibodies. A tendency to escape sensory disturbances is shown by anti-GQ1b/GM1-positive MFS.
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Affiliation(s)
- K Kaida
- Third Department of Internal Medicine, National Defense Medical College, Tokorozawa, Saitama-Ken, Japan
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40
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Affiliation(s)
- Y Shimazaki
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, Kokubunji, Tokyo, Japan.
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41
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Kanzaki M, Mochizuki H, Kobayashi H, Motoyoshi K, Kamakura K. Intraspinal sarcoidosis: clinical features, MR imaging and electrophysiological study. Neurol Sci 2004; 25:91-4. [PMID: 15221627 DOI: 10.1007/s10072-004-0236-1] [Citation(s) in RCA: 2] [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] [Received: 11/14/2003] [Accepted: 02/19/2004] [Indexed: 10/26/2022]
Abstract
We presented the case of a 58-year-old woman with spinal sarcoidosis at the C4-C6 level. The lesion itself as visualized with magnetic resonance imaging, and its neurological findings responded favorably to treatment with prednisolone. Comparison of pre- and post-treatment values for somatosensory evoked potential (SEP) and central motor conduction time (CMCT) also showed improvement. Analysis of SEP and CMCT can be a useful tool for following up spinal sarcoidosis.
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Affiliation(s)
- M Kanzaki
- Third Department of Internal Medicine, National Defense Medical College, 3-2, Namiki, Tokorozawa, Saitama 359-8513, Japan
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42
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Kanzaki M, Sakuraba M, Kuwata H, Ikeda T, Oyama K, Mae M, Murasugi M, Miyano H, Wachi N, Kikkawa T, Aoshima H, Onuki T. [Stenting in obstruction of superior vena cava; clinical experience with the self-expanding endovascular prosthesis]. Kyobu Geka 2004; 57:347-50; discussion 350-2. [PMID: 15151030] [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: 04/29/2023]
Abstract
From August 1997 to December 2002, 14 consecutive patients with superior vena cava syndrome with the self-expanding endovascular prosthesis. Diagnoses were adenocarcinoma in 6, small cell carcinoma in 4, squamous cell carcinoma in 1, metastatic lung cancer in 2, and invasive thymoma in 1. Atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) were measured on their admission and perioperative period. Expecting only 1 patient complete symptomatically relieved within 3 days of stent implantation. Superior vena cava pressure or radial pressure of the stent was sufficient to relieve obstruction. Preoperative ANP level were normal, BNP level were increased. Postoperatively both ANP level and BNP level were slightly increased under intravenous dopamine hydrochloride. Implantation of the self-expanding stent endovascular prosthesis for superior vena cava syndrome provides rapid symptomatic relief and improves the patient's quality of life.
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Affiliation(s)
- M Kanzaki
- Department of Surgery I, Tokyo Women's Medical University, School of Medicine, Tokyo, Japan
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Kaida K, Kusunoki S, Kanzaki M, Kamakura K, Motoyoshi K, Kanazawa I. Anti-GQ1b antibody as a factor predictive of mechanical ventilation in Guillain-Barre syndrome. Neurology 2004; 62:821-4. [PMID: 15007143 DOI: 10.1212/01.wnl.0000113718.27729.43] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Compared with 87 unventilated patients with Guillain-Barré syndrome (GBS), 44 ventilated patients with GBS more frequently had multiple cranial nerve involvement (91 vs 50%; p < 0.001) and IgG anti-GQ1b antibody (27 vs 8%; p = 0.006). In GBS patients without ophthalmoparesis, the presence of IgG anti-GQ1b antibody was associated with respiratory failure (12 [3/25] vs 0% [0/67]; p = 0.04). The presence of the antibody may be a factor predictive of respiratory failure in GBS.
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Affiliation(s)
- K Kaida
- Third Department of Internal Medicine, National Defense Medical College, Saitama-ken, University of Tokyo, Japan
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44
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Ogawa G, Mochizuki H, Kanzaki M, Kaida K, Motoyoshi K, Kamakura K. Seasonal variation of multiple sclerosis exacerbations in Japan. Neurol Sci 2004; 24:417-9. [PMID: 14767690 DOI: 10.1007/s10072-003-0200-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2003] [Accepted: 10/30/2003] [Indexed: 10/26/2022]
Abstract
Several reports have described the seasonal variation of multiple sclerosis (MS) attacks in the European countries and in the US. Some have insisted that attacks occurred more frequently in winter or spring. We investigated the possibility of a seasonal variation in the frequency of MS attacks among patients in Japan. A total of 172 MS exacerbations in 34 MS patients were analyzed retrospectively. Attacks were divided into two groups: opticospinal type and brain type. The 12 months of the year were assigned to 6 groups based on average monthly temperature. Of the 172 MS exacerbations, 123 were opticospinal type and 49 were brain type of attacks. The total number of attacks was significantly more frequent in the warmest (July and August) and coldest (January and February) months. The heat of summer in warmer, low latitude areas may be a risk factor for MS attacks.
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Affiliation(s)
- G Ogawa
- Third Department of Internal Medicine, National Defense Medical College, 3-2, Namiki, 359-8513, Tokorozawa, Saitama, Japan
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45
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Ikeda T, Kanzaki M, Kuwata H, Isaka T, Miyano Y, Oyama K, Mae M, Murasugi M, Onuki T. [Clinical study on video-assisted thoracic surgical simultaneously stapled subsegmentectomy for peripheral lung tumors]. Kyobu Geka 2004; 57:51-5. [PMID: 14733099] [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: 04/28/2023]
Abstract
BACKGROUND The purpose of this study is to confirm the safety and validity of video-assisted thoracic surgical simultaneously stapled subsegmentectomy (simultaneously stapling of all subsegmental bronchi and vessels in their natural construction). METHODS The clinicopathologic information of the 10 patients who underwent video-assisted thoracic surgical simultaneously stapled subsegmentectomy for primary lung cancer (6) and metastatic lung tumor (4) were reviewed retrospectively. The patient population consisted of 7 men and 3 women with a mean age of 70.2 years. RESULTS Median operative time was 201 minutes. Average blood loss was 76 ml. Mean duration of thoracic drainage was 3 days. There was no surgical mortality. Recurrence was diagnosed in 2 of 6 lung cancer patients (each of contralateral lung metastasis and brain metastasis), and 1 of 2 died 26 months after the operation. All patients have been followed for a mean period of 30.4 months with no local recurrence. CONCLUSIONS Video-assisted thoracic surgical simultaneously stapled subsegmentectomy is safe and may be an acceptable alternative to segmentectomy, and wedge resection for strictly selective patients with peripheral lung tumors.
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Affiliation(s)
- T Ikeda
- Department of First Surgery, Tokyo Women's Medical University, Tokyo, Japan
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46
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Itoh A, Yamakura T, Ohkubo T, Kanzaki M, Palmiotto PA, LaFrankie JV, Ashton PS, Lee HS. Importance of topography and soil texture in the spatial distribution of two sympatric dipterocarp trees in a Bornean rainforest. Ecol Res 2003. [DOI: 10.1046/j.1440-1703.2003.00556.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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47
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Kanzaki M, Obara T, Ohtsuka T, Yamamoto H, Sasano S, Onuki T. [Surgical management of acute empyema]. Kyobu Geka 2002; 55:1001-3; discussion 1004-5. [PMID: 12428331] [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: 02/27/2023]
Abstract
Basic principles apply to the management of all forms of acute empyema: investigation and treatment of the underlying infection, drainage of purulent collection, obliteration of the space, and treatment of the associated intercurrent medical conditions. From July 1999 to May 2001, we performed surgical treatment in 11 patients for acute empyema. There were 4 cases of the fibrinopurulent phase and 7 cases of the organizing phase. Surgical procedure was 7 open thoracotomies and 4 thoracoscopies. The mean operating time was 154.2 +/- 36.6 minutes and blood loss during surgery was 344.7 +/- 274.8 ml. There was no procedure-related morbidity. In conclusion, early aggressive surgical approach is a feasible method for treatment of acute empyema.
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Affiliation(s)
- M Kanzaki
- Department of Surgery I, Tokyo Women's Medical University, Tokyo, Japan
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Abstract
Insulin is a potent metabolic hormone essential for the maintenance of normal circulating blood glucose level in mammals. The physiologic control of glucose homeostasis results from a balance between hepatic glucose release (glycogenolysis and gluconeogenesis) and dietary glucose absorption versus skeletal muscle and adipose tissue glucose uptake and disposal. Disruption of this delicate balance either through defects in insulin secretion, liver glucose output, or peripheral tissue glucose uptake results in pathophysiological states of insulin resistance and diabetes. In particular, glucose transport into skeletal muscle and adipose tissue is the rate-limiting step in glucose metabolism and reduction in the efficiency of this process (insulin resistance) is one of the earliest predictors for the development of Type II diabetes. Importantly, recent studies have directly implicated an impairment in insulin receptor signal transduction as the prime mechanism for peripheral tissue insulin resistance. In this review, we have focused on recent developments in our understanding of the molecular mechanisms and signal transduction pathways that insulin utilizes to specifically regulate glucose uptake. The detailed understanding of these events will provide a conceptual framework for the development of new therapeutic targets to treat this chronic and debilitating disease process.
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Affiliation(s)
- M Kanzaki
- Department of Physiology & Biophysics, The University of Iowa, Iowa City 52242, USA
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Oyama K, Adachi T, Kanzaki M, Sasano S, Kuwata H, Yoshida T, Ohnuki T. [Corrective surgery for pectus excavatum in patients with Marfan syndrome]. Kyobu Geka 2002; 55:623-7. [PMID: 12174646] [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: 02/26/2023]
Abstract
OBJECTIVE Among 1,967 patients who underwent corrective surgery for pectus excavatum in our department between January 1980 and December 2001, 33 patients diagnosed as having Marfan syndrome were evaluated. We evaluated the clinical problems and outcome of the 33 patients. RESULTS The outcome of corrective surgery for pectus excavatum in the 26 patients who underwent a single technique surgery was generally good. Pectus excavatum was complicated by a total of 25 cases of cardiovascular disorder in 14 of 33 (42%) patients. Six patients underwent corrective surgery for pectus excavatum and cardiovascular disorders simultaneously. Three patients also had disorders of lung, which included spontaneous pneumothorax in 2 patients and progressive emphysematous cyst in 1 patient. The 2 patients with spontaneous pneumothorax underwent resection of bullae together with corrective surgery of pectus excavatum, while the patient with progressive emphysematous cyst underwent resection of bullae in a separate surgery after correction of pectus excavatum. Cardiovascular disorders were aggravated in 6 of the 20 patients who could be follow up. A total of 4 (20%) patients died long after surgery. CONCLUSIONS We corrected pectus excavatum in 33 patients with Marfan syndrome, and obtained favorable outcomes. The postsurgical outcome depends on progression of lesions of the heart and large vessels, and it is essential to monitor such lesions carefully.
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Affiliation(s)
- K Oyama
- Department of Surgery I, Tokyo Women's Medical University, School of Medicine, Japan
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Tatebayashi T, Kei J, Kanzaki M, Nishiuchi M, Oyama K, Adachi T, Onuki T, Yokoyama M, Nitta S. [Total aortic arch replacement for distal aortic arch aneurysm with adhered left lung: report of a case]. Kyobu Geka 2002; 55:499-501. [PMID: 12058463] [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: 02/25/2023]
Abstract
A 76-year-old man with a history of pleuritis and a cerebral infarct underwent a total arch replacement for an aneurysm of the distal aortic arch. Computed tomography revealed a true aneurysm having a maximum diameter of 70 mm as well as pleural thickening and calcification. Total arch replacement with selective cerebral perfusion was performed through median sternotomy and left thoracotomy. The myocardial ischemic time was shortened by reperfusion from the right axillary artery after the anastomosis of the proximal ascending aorta and the brachiocephalic artery. After the other branches of the arch were anastomosed, a distal anastomosis through the left thoracotomy was then performed using the pull-through method, enabling minimal decortication of the adhered lung. Our surgical procedure for distal arch aneurysm with adhered lung involves the addition of a left thoracotomy, but the reduction in the myocardial ischemic time and lung injury are of benefit.
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Affiliation(s)
- T Tatebayashi
- Department of Surgery I, Tokyo Women's Medical University, Tokyo, Japan
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