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Wang T, Kaneko S, Kriukov E, Alvarez D, Lam E, Wang Y, La Manna S, Marasco D, Fernandez-Gonzalez A, Mitsialis SA, Kourembanas S, Stahl A, Chen M, Xu H, Baranov P, Cai G, von Andrian UH, Sun Y. SOCS3 regulates pathological retinal angiogenesis through modulating SPP1 expression in microglia and macrophages. Mol Ther 2024; 32:1425-1444. [PMID: 38504518 PMCID: PMC11081920 DOI: 10.1016/j.ymthe.2024.03.025] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/18/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024] Open
Abstract
Pathological ocular angiogenesis has long been associated with myeloid cell activation. However, the precise cellular and molecular mechanisms governing the intricate crosstalk between the immune system and vascular changes during ocular neovascularization formation remain elusive. In this study, we demonstrated that the absence of the suppressor of cytokine signaling 3 (SOCS3) in myeloid cells led to a substantial accumulation of microglia and macrophage subsets during the neovascularization process. Our single-cell RNA sequencing data analysis revealed a remarkable increase in the expression of the secreted phosphoprotein 1 (Spp1) gene within these microglia and macrophages, identifying subsets of Spp1-expressing microglia and macrophages during neovascularization formation in angiogenesis mouse models. Notably, the number of Spp1-expressing microglia and macrophages exhibited further elevation during neovascularization in mice lacking myeloid SOCS3. Moreover, our investigation unveiled the Spp1 gene as a direct transcriptional target gene of signal transducer and activator of transcription 3. Importantly, pharmaceutical activation of SOCS3 or blocking of SPP1 resulted in a significant reduction in pathological neovascularization. In conclusion, our study highlights the pivotal role of the SOCS3/STAT3/SPP1 axis in the regulation of pathological retinal angiogenesis.
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Affiliation(s)
- Tianxi Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Satoshi Kaneko
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Emil Kriukov
- Department of Ophthalmology, The Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA 02114, USA
| | - David Alvarez
- Department of Immunology and HMS Center for Immune Imaging, Harvard Medical School, Boston, MA 02115, USA
| | - Enton Lam
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Yidi Wang
- Department of Immunology and HMS Center for Immune Imaging, Harvard Medical School, Boston, MA 02115, USA
| | - Sara La Manna
- Department of Pharmacy, University of Naples "Federico II", 80138 Naples, Italy
| | - Daniela Marasco
- Department of Pharmacy, University of Naples "Federico II", 80138 Naples, Italy
| | - Angeles Fernandez-Gonzalez
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - S Alex Mitsialis
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Stella Kourembanas
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Andreas Stahl
- Department of Ophthalmology, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Mei Chen
- Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Heping Xu
- Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Petr Baranov
- Department of Ophthalmology, The Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA 02114, USA
| | - Guoshuai Cai
- Department of Surgery, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Ulrich H von Andrian
- Department of Immunology and HMS Center for Immune Imaging, Harvard Medical School, Boston, MA 02115, USA; The Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Ye Sun
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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Wang X, Wang T, Kaneko S, Kriukov E, Lam E, Szczepan M, Chen J, Gregg A, Wang X, Fernandez-Gonzalez A, Mitsialis SA, Kourembanas S, Baranov P, Sun Y. Photoreceptors inhibit pathological retinal angiogenesis through transcriptional regulation of Adam17 via c-Fos. Angiogenesis 2024:10.1007/s10456-024-09912-0. [PMID: 38483712 DOI: 10.1007/s10456-024-09912-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/03/2024] [Indexed: 04/11/2024]
Abstract
Pathological retinal angiogenesis profoundly impacts visual function in vascular eye diseases, such as retinopathy of prematurity (ROP) in preterm infants and age-related macular degeneration in the elderly. While the involvement of photoreceptors in these diseases is recognized, the underlying mechanisms remain unclear. This study delved into the pivotal role of photoreceptors in regulating abnormal retinal blood vessel growth using an oxygen-induced retinopathy (OIR) mouse model through the c-Fos/A disintegrin and metalloprotease 17 (Adam17) axis. Our findings revealed a significant induction of c-Fos expression in rod photoreceptors, and c-Fos depletion in these cells inhibited pathological neovascularization and reduced blood vessel leakage in the OIR mouse model. Mechanistically, c-Fos directly regulated the transcription of Adam17 a shedding protease responsible for the production of bioactive molecules involved in inflammation, angiogenesis, and cell adhesion and migration. Furthermore, we demonstrated the therapeutic potential by using an adeno-associated virus carrying a rod photoreceptor-specific short hairpin RNA against c-fos which effectively mitigated abnormal retinal blood vessel overgrowth, restored retinal thickness, and improved electroretinographic (ERG) responses. In conclusion, this study highlights the significance of photoreceptor c-Fos in ROP pathology, offering a novel perspective for the treatment of this disease.
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Affiliation(s)
- Xudong Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Tianxi Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Satoshi Kaneko
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Emil Kriukov
- Department of Ophthalmology, The Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Enton Lam
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Manon Szczepan
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jasmine Chen
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Austin Gregg
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xingyan Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Angeles Fernandez-Gonzalez
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - S Alex Mitsialis
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Stella Kourembanas
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Petr Baranov
- Department of Ophthalmology, The Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Ye Sun
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
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Kaneko S, Inaji M, Shimizu K, Orihara A, Hashimoto Fujimoto S, Maehara T. Clinical utility and safety of a trapezoid-shaped electrode placement for evaluating the mesio-basal temporal lobe during epilepsy surgery. J Clin Neurosci 2024; 121:28-33. [PMID: 38335825 DOI: 10.1016/j.jocn.2024.01.026] [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: 09/12/2023] [Revised: 01/24/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024]
Abstract
A trapezoid-shaped electrode (TSE) is used for detecting epileptogenicity in patients with temporal lobe epilepsy (TLE). However, the utility and safety associated with TSE placement have not been reported. In this study, we evaluated the safety and usefulness of TSE by analyzing the seizure detection, surgical outcomes and complications in patients with TLE who underwent intracranial electrodes (ICE) placement. Between April 2000 and August 2019, 50 patients with TLE who underwent 51 ICE placement procedures were examined. A TSE with eight contacts covering the parahippocampal gyrus and basal temporal lobe was used. Among the 37 patients who underwent TSE placement, 26 and 11 patients were diagnosed with mesial TLE (mTLE) and extra-mTLE, respectively. The 14 remaining patients without TSE placement were diagnosed with extra-mTLE. Seizure freedom was achieved in 73% (19/26) of mTLE patients detected by TSE and 50% (14/24) of extra-mTLE patients.Good seizure outcomes (Engel class I and II) were observed in 81% (21/26) patients with mTLE and 67% (16/24) patients with extra-mTLE. Radiographic complications were observed in 20% (10/50) patients who underwent ICE placement. Although 6% (3/50) patients showed transient neurological deficits, none were permanent. The electrodes responsible for the occurrence of complications included nine grid electrodes and one TSE. The complication rate after TSE placement was 3% (1/37). More than 64 electrode contacts and male sex, not TSE placement, were identified as significant risk factors for developing complications. This study demonstrated the usefulness and safety of TSE for evaluating mTLE in patients undergoing ICE placement.
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Affiliation(s)
- Satoshi Kaneko
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Motoki Inaji
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
| | - Kazuhide Shimizu
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Asumi Orihara
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Satoka Hashimoto Fujimoto
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Taketoshi Maehara
- Department of Neurosurgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
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Hyuga A, Ouma P, Matharu AK, Krücken J, Kaneko S, Goto K, Fillinger U. Myth or truth: investigation of the jumping ability of Tunga penetrans (Siphonaptera: Tungidae). J Med Entomol 2024; 61:261-265. [PMID: 37861430 PMCID: PMC10784774 DOI: 10.1093/jme/tjad143] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/26/2023] [Accepted: 10/09/2023] [Indexed: 10/21/2023]
Abstract
Female sand fleas (Tunga penetrans Linnaeus, 1758, Siphonaptera: Tungidae) cause a severe parasitic skin disease known as tungiasis. T. penetrans is a small flea, measuring less than 1 mm in length. The females of this species burrow into the skin of human and animal hosts and mostly affect the feet. This has led to the anecdotal assumption that T. penetrans, unlike its relatives in the Siphonaptera family, would have a limited jumping ability potentially not reaching higher body parts. However, there is no data supporting this. This study evaluated the jumping capabilities of T. penetrans for height and distance using sticky tapes. The vertical jump of the female T. penetrans ranged from 4.5 to 100 mm with a mean of 40 mm whereas the vertical jump of the male T. penetrans ranged from 1.2 to 138 mm with a mean of 46 mm. The horizontal jump of the female T. penetrans ranged from 18 to 138 mm with a mean of 64 mm and that of the male ranged from 9 to 251 mm with a mean of 80 mm. Based on the literature, fleas of various species have been described as jumping vertically 50-100 times their size and horizontally 5-100 times their size. In this respect, sand fleas appear to have equal expert jumping abilities to their relatives. Their aggregation on people's feet is not likely a result of their poor jumping ability but might be an adaptation to the host's behavior which would require further investigations.
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Affiliation(s)
- Ayako Hyuga
- Human Health Theme, International Centre of Insect Physiology and Ecology, Nairobi 00100, Kenya
| | - Paul Ouma
- Human Health Theme, International Centre of Insect Physiology and Ecology, Nairobi 00100, Kenya
| | - Abneel K Matharu
- Human Health Theme, International Centre of Insect Physiology and Ecology, Nairobi 00100, Kenya
- Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Robert-von-Ostertag-Str. 7, 14163 Berlin, Germany
| | - Jürgen Krücken
- Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Robert-von-Ostertag-Str. 7, 14163 Berlin, Germany
| | - Satoshi Kaneko
- Department of Eco-Epidemiology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki-shi 852-8523, Nagasaki, Japan
| | - Kensuke Goto
- Division of Health and Safety Sciences Education, Department of Educational Collaboration, Osaka Kyoiku University, 4-698-1 Asahigaoka, Kashiwara-shi 582-8582, Osaka, Japan
| | - Ulrike Fillinger
- Human Health Theme, International Centre of Insect Physiology and Ecology, Nairobi 00100, Kenya
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Hashizume H, Taga S, Sakata MK, Hussein M, Siddig EE, Minamoto T, Fahal AH, Kaneko S. Environmental detection of eumycetoma pathogens using multiplex real-time PCR for soil DNA in Sennar State, Sudan. Trop Med Health 2023; 51:71. [PMID: 38115141 PMCID: PMC10729560 DOI: 10.1186/s41182-023-00563-3] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/09/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Mycetoma is a chronic disease affecting the skin and subcutaneous tissue endemic in the tropical and subtropical regions. Several bacteria and fungi can cause mycetoma, but fungal mycetoma (eumycetoma) is challenging because the treatment requires a combination of a long-term antifungal agent and surgery. Although the transmission route has not yet been elucidated, infection from the soil is a leading hypothesis. However, there are few soil investigation studies, and the geographical distribution of mycetoma pathogens is not well documented. Here, we used multiplex real-time PCR technology to identify three fungal species from soil samples. METHODS In total, 64 DNA samples were extracted from soil collected in seven villages in an endemic area in Sennar State, Sudan, in 2019. Primers and fluorescent probes specifically targeting the ribosomal DNA of Madurella mycetomatis, Falciformispora senegalensis, and F. tompkinsii were designed. RESULTS Multiplex real-time PCR was performed and identified the major pathogen, M. mycetomatis that existed in most sites (95%). In addition, two other pathogens were identified from some sites. This is the first report on the use of this technique for identifying the eumycetoma causative microorganisms. CONCLUSIONS This study demonstrated that soil DNA investigation can elucidate the risk area of mycetoma-causative agents. The results will contribute to the design of prevention measures, and further large-scale studies may be effective in understanding the natural habitats of mycetoma pathogens.
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Affiliation(s)
- Hiroki Hashizume
- School of Tropical Medicine and Global Health, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Ecoepidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Suguru Taga
- Department of Ecoepidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Masayuki K Sakata
- Graduate School of Human Development and Environment, Kobe University, 3-11 Tsurukabuto, Nada-Ku, Kobe, 657-8501, Japan
- Research Faculty of Agriculture, Hokkaido University, Kita-9, Nishi-9, Kita-Ku, Sapporo, Hokkaido, 060-8589, Japan
| | - Mahmoud Hussein
- Mycetoma Research Center, University of Khartoum, P.O. Box 102, Khartoum, Sudan
- Tumors Therapy and Cancer Research Center, Molecular Biology Unit, Shendi University, P.O .Box 142-143, Shendi, Sudan
| | - Emmanuel Edwar Siddig
- Mycetoma Research Center, University of Khartoum, P.O. Box 102, Khartoum, Sudan
- Faculty of Medical Laboratory Sciences, Unit of Basic Medical Sciences, University of Khartoum, Khartoum, Sudan
| | - Toshifumi Minamoto
- Graduate School of Human Development and Environment, Kobe University, 3-11 Tsurukabuto, Nada-Ku, Kobe, 657-8501, Japan
| | - Ahmed Hassan Fahal
- Mycetoma Research Center, University of Khartoum, P.O. Box 102, Khartoum, Sudan
| | - Satoshi Kaneko
- School of Tropical Medicine and Global Health, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
- Department of Ecoepidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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Wasonga J, Miyamichi K, Hitachi M, Ozaki R, Karama M, Hirayama K, Kaneko S. Effects of Community-Led Total Sanitation (CLTS) Boosting and Household Factors on Latrine Ownership in Siaya County, Kenya. Int J Environ Res Public Health 2023; 20:6781. [PMID: 37754640 PMCID: PMC10531019 DOI: 10.3390/ijerph20186781] [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: 07/06/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 09/28/2023]
Abstract
Community-led total sanitation (CLTS) is a widely used approach for enhancing sanitation practices. However, the impact of boosted CLTS on household latrine ownership has not been adequately evaluated. This study aims to investigate the factors associated with latrine possession among households, with a specific focus on single and CLTS-boosting implementation. A community-based repeated cross-sectional study was conducted in Siaya County, Kenya, involving 512 households at the baseline and 423 households at the follow-up. Data were analyzed using the mixed-effects logistic regression model. At the baseline, latrine possession was significantly associated with CLTS implementation (adjusted OR [aOR]: 3.01; 95% confidence interval [CI]: 1.41-6.44), literacy among households (aOR: 1.83; 95% CI: 1.12-2.98) and higher socioeconomic status (SES) (second level: aOR: 2.48; 95% CI:1.41-4.36, third level: aOR: 3.11; 95% CI: 1.76-5.50, fourth level: aOR: 10.20; 95% CI: 5.07-20.54). At follow-up, CLTS boosting (aOR: 7.92; 95% CI: 1.77-35.45) and a higher SES were associated with increased latrine ownership (second level: aOR: 2.04; 95% CI: 0.97-4.26, third level: aOR: 7.73; 95% CI: 2.98-20.03, fourth level: aOR: 9.93; 95% CI: 3.14-28.35). These findings highlight the significant role played by both single and CLST boosting in promoting universal latrine ownership and empowering vulnerable households to understand the importance of sanitation and open defecation-free practices.
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Affiliation(s)
- Job Wasonga
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan;
| | - Kazuchiyo Miyamichi
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan; (K.M.); (M.H.); (R.O.)
| | - Mami Hitachi
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan; (K.M.); (M.H.); (R.O.)
| | - Rie Ozaki
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan; (K.M.); (M.H.); (R.O.)
| | - Mohamed Karama
- Centre for Public Health Research, Kenya Medical Research Institute (KEMRI), Nairobi 20752-00202, Kenya;
- AMREF Health Africa Ethics and Scientific Research Committee, Amref Health Africa, Nairobi 27691-00506, Kenya
| | - Kenji Hirayama
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki 852-8523, Japan;
| | - Satoshi Kaneko
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan;
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan; (K.M.); (M.H.); (R.O.)
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki 852-8523, Japan;
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Yoshioka I, Mori Y, Fahal AH, Siddig EE, Kaneko S, Yaguchi T. Specific and sensitive loop-mediated isothermal amplification (LAMP) method for Madurella strains, eumycetoma filamentous fungi causative agent. PLoS Negl Trop Dis 2023; 17:e0011644. [PMID: 37721946 PMCID: PMC10538720 DOI: 10.1371/journal.pntd.0011644] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/28/2023] [Accepted: 09/07/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND Filamentous fungi of the genus Madurella are the primary causative agents of mycetoma, a disease observed in tropical and subtropical regions. Since early diagnostics based on a morphological approach are difficult and have many shortcomings, a molecular diagnostic method suitable for rural settings is required. In this study, we developed the loop-mediated isothermal amplification (LAMP) method to present a foundational technique of the diagnosis of Madurella spp. (M. mycetomatis, M. pseudomycetomatis, M. tropicana, and M. fahalii), the common causative organisms of eumycetoma. PRINCIPAL FINDINGS We successfully designed a primer pair targeting the rDNAs of three Madurella spp. excluding M. fahalii, and detected up to 100 fg of genomic DNA extracted from isolates of M. mycetomatis and 1 pg of M. pseudomycetomatis and M. tropicana, within one hour. Second, a primer pair specific to M. mycetomatis, the most common causative species, or M. fahalii, a drug-resistant species, was constructed, and the detection limit of both primer pairs was 1 pg. The designed primers accurately distinguished 16 strains of the genus Madurella from various fungal species known to cause mycetomas. CONCLUSION In summary, we established the first model of a LAMP detection method that rapidly and sensitively detects and identifies Madurella isolates for clinical diagnostics. Moreover, the combined designed primer sets could identify mycetoma-causing strains simultaneously.
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Affiliation(s)
- Isato Yoshioka
- Medical Mycology Research Center, Chiba University, Chiba, Chiba, Japan
- Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
| | - Yugo Mori
- Medical Mycology Research Center, Chiba University, Chiba, Chiba, Japan
| | | | | | - Satoshi Kaneko
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
- Department of Ecoepidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Takashi Yaguchi
- Medical Mycology Research Center, Chiba University, Chiba, Chiba, Japan
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Homma K, Kaneko S, Tsukagoshi K, Nishino T. Intermolecular and Electrode-Molecule Bonding in a Single Dimer Junction of Naphthalenethiol as Revealed by Surface-Enhanced Raman Scattering Combined with Transport Measurements. J Am Chem Soc 2023. [PMID: 37437895 PMCID: PMC10375526 DOI: 10.1021/jacs.3c02050] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Electron transport through noncovalent interaction is of fundamental and practical importance in nanomaterials and nanodevices. Recent single-molecule studies employing single-molecule junctions have revealed unique electron transport properties through noncovalent interactions, especially those through a π-π interaction. However, the relationship between the junction structure and electron transport remains elusive due to the insufficient knowledge of geometric structures. In this article, we employ surface-enhanced Raman scattering (SERS) synchronized with current-voltage (I-V) measurements to characterize the junction structure, together with the transport properties, of a single dimer and monomer junction of naphthalenethiol, the former of which was formed by the intermolecular π-π interaction. The correlation analysis of the vibrational energy and electrical conductance enables identifying the intermolecular and molecule-electrode interactions in these molecular junctions and, consequently, addressing the transport properties exclusively associated with the π-π interaction. In addition, the analysis achieved discrimination of the interaction between the NT molecule and the Au electrode of the junction, i.e., Au-π interactions through-π coupling and though-space coupling. The power density spectra support the noncovalent character at the interfaces in the molecular junctions. These results demonstrate that the simultaneous SERS and I-V technique provides a unique means for the structural and electrical investigation of noncovalent interactions.
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Affiliation(s)
- Kanji Homma
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-10 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Satoshi Kaneko
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-10 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Kazuhito Tsukagoshi
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Tomoaki Nishino
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-10 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
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Yamazaki T, Kawamura ,N, Shimomura K, Miyake Y, Oishi Y, Adachi T, Strasser P, Koda A, Fujimori H, Yuasa T, Ikedo Y, Kobayashi Y, Sasaki KI, Mibe T, Ushizawa T, Higashino Y, Nagao D, Aoki M, Hase K, Kaneko S, Tagawa R, Uematsu T, Seiya Y, Uetake S, Masuda T, Tada H, Sugiyama S, Suzuki K. New beamlines and future prospects of the J-PARC muon facility. EPJ Web Conf 2023. [DOI: 10.1051/epjconf/202328201016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
At the J-PARC muon facility (MUSE), new beamlines started operation recently. H-line is a high-intensity pulsed muon beamline for fundamental physics experiments. The first beam of the H-line was delivered to its first branch (H1 area) in January 2022, where a precise measurement of the muonium hyperfine structure and a search for μ-e conversion will be conducted. Further extension of the second branch of the H-line for a muon g-2/EDM experiment and a transmission muon microscope project is also ongoing. In addition, the second branch of the surface muon beamline (S2 area of the S-line) was opened for a muonium 1S-2S spectroscopy experiment in FY2021. In this paper, the recent upgrade and present status of the J-PARC muon facility and its prospects are presented.
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Tsukida R, Yoshida M, Kaneko S. Characterization of an α-L-arabinofuranosidase GH51 from the brown-rot fungus <i>Gloeophyllum trabeum</i>. J Appl Glycosci (1999) 2022; 70:9-14. [PMID: 37033114 PMCID: PMC10074032 DOI: 10.5458/jag.jag.jag-2022_0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/21/2022] [Indexed: 12/26/2022] Open
Abstract
Woody biomass is anticipated to be a resource for a decarbonized society, but the difficulty of isolating woody components is a significant challenge. Brown-rot fungi, a type of wood rotting fungi, decompose hemicellulose particularly efficiently. However, there are few reports on the hemicellulases from brown-rot fungi. An α-L-arabinofuranosidase belonging to glycoside hydrolase family 51 (GH51) from the brown-rot fungus Gloeophyllum trabeum (GtAbf51A) was cloned and characterized in the present study. Analyses of the phylogeny of GH51 enzymes in wood rotting fungi revealed the existence of two groups, intercellular and extracellular enzymes. After deglycosylation, the recombinant GtAbf51A produced by Pichia pastoris appeared on SDS-PAGE as approximately 71,777 daltons, which is the expected molecular weight based on the amino acid sequence of GtAbf51A. Maximum enzyme activity occurred between pH 2.2 and 4.0 and at 50 °C, while it was stable between pH 2.2 and 10.0 and up to 40 °C. Due to the presence of a signal peptide, GtAbf51A was thought to hydrolyze polysaccharide containing arabinose. However, the hydrolysis rate of arabinosyl linkages in polysaccharides was only 3-5 % for arabinoxylan and 18 % for arabinan. GtAbf51A, in contrast, efficiently hydrolyzed arabinoxylooligosaccharides, particularly O-α-L-arabinofuranosyl-(1→3)-O-β-D-xylopyranosyl-(1→4)-β-D-xylopyranose, which is the principal product of GH10 β-xylanase. These data suggest that GtAbf51A cooperates with other xylan-degrading enzymes, such as β-xylanase, to degrade xylan in nature.
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Affiliation(s)
- Rikako Tsukida
- Department of Environmental and Natural Resource Sciences, Faculty of Agriculture, Tokyo University of Agriculture and Technology
| | - Makoto Yoshida
- Department of Environmental and Natural Resource Sciences, Faculty of Agriculture, Tokyo University of Agriculture and Technology
| | - Satoshi Kaneko
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus
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Uchibori M, Ghaznavi C, Murakami M, Eguchi A, Kunishima H, Kaneko S, Maruyama-Sakurai K, Miyata H, Nomura S. Preventive Behaviors and Information Sources during COVID-19 Pandemic: A Cross-Sectional Study in Japan. Int J Environ Res Public Health 2022; 19:14511. [PMID: 36361391 PMCID: PMC9658992 DOI: 10.3390/ijerph192114511] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND individual preventive behaviors are one of the key measures needed to prevent the spread of COVID-19. This study sought to identify the factors associated with the adoption of COVID-19 preventive measures, focusing specifically on information sources. METHODS we conducted a nationally representative cross-sectional survey of 30,053 Japanese adults in February 2021. The survey asked about socioeconomic, health-related, and psychological characteristics, attitudes toward immunization, and the use of information sources regarding COVID-19. We have constructed multivariable logistic regression to estimate the factors associated with the adoption of three preventive measures: 3Cs avoidance, hand hygiene and respiratory hygiene. RESULTS socioeconomic variables, psychological variables, and the use of information sources are significantly associated with the adoption of preventive measures. The more information sources one uses, the more likely one is to adopt preventive measures. Trust in healthcare professionals is positively associated with adopting preventive measures. On the other hand, negative correlations between trust in social media and preventive behaviors were observed. CONCLUSIONS encouraging access to multiple information sources, utilizing communication channels, and modifying messaging according to target groups are essential to promote COVID-19 preventive measures.
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Affiliation(s)
- Manae Uchibori
- Department of Health Policy and Management, School of Medicine, Keio University, 35 Shinanomachi, Shinjyuku-ku, Tokyo 160-8582, Japan
- The Tokyo Foundation for Policy Research, 3-2-1 Roppongi, Tokyo 106-6234, Japan
| | - Cyrus Ghaznavi
- Department of Health Policy and Management, School of Medicine, Keio University, 35 Shinanomachi, Shinjyuku-ku, Tokyo 160-8582, Japan
- Medical Education Program, Washington University School of Medicine, 660 S Euclid Ave, Saint Louis, MO 63110, USA
| | - Michio Murakami
- Division of Scientific Information and Public Policy, Center for Infectious Disease Education and Research, Osaka University, 2-8 Yamadaoka, Suita City 565-0871, Japan
| | - Akifumi Eguchi
- Department of Health Policy and Management, School of Medicine, Keio University, 35 Shinanomachi, Shinjyuku-ku, Tokyo 160-8582, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan
- Center for Preventive Medical Sciences, Department of Sustainable Health Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hiroyuki Kunishima
- Department of Infectious Diseases, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan
| | - Satoshi Kaneko
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Keiko Maruyama-Sakurai
- Department of Health Policy and Management, School of Medicine, Keio University, 35 Shinanomachi, Shinjyuku-ku, Tokyo 160-8582, Japan
| | - Hiroaki Miyata
- Department of Health Policy and Management, School of Medicine, Keio University, 35 Shinanomachi, Shinjyuku-ku, Tokyo 160-8582, Japan
- The Tokyo Foundation for Policy Research, 3-2-1 Roppongi, Tokyo 106-6234, Japan
| | - Shuhei Nomura
- Department of Health Policy and Management, School of Medicine, Keio University, 35 Shinanomachi, Shinjyuku-ku, Tokyo 160-8582, Japan
- The Tokyo Foundation for Policy Research, 3-2-1 Roppongi, Tokyo 106-6234, Japan
- Division of Scientific Information and Public Policy, Center for Infectious Disease Education and Research, Osaka University, 2-8 Yamadaoka, Suita City 565-0871, Japan
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12
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Iida S, Nakamura M, Itani K, Morise S, Kunieda T, Takenouchi N, Kaneko S, Yakushiji Y. Quantitative and Morphological Assessment of Computed Tomography-depicted Gynecomastia in Spinal and Bulbar Muscular Atrophy. Acad Radiol 2022; 29:1692-1699. [PMID: 35246377 DOI: 10.1016/j.acra.2022.02.003] [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: 12/20/2021] [Revised: 01/27/2022] [Accepted: 02/02/2022] [Indexed: 11/01/2022]
Abstract
RATIONALE AND OBJECTIVES To evaluate the prevalence, size, and characteristics of gynecomastia on thoracic computed tomography (CT) in patients with spinal and bulbar muscular atrophy (SBMA) or amyotrophic lateral sclerosis (ALS), compared to those of patients with myasthenia gravis (as controls). MATERIALS AND METHODS A total of 189 male patients (SBMA [n = 15]; ALS [n = 76]; control [n = 98]) who underwent thoracic computed tomography were included. The size of breast glandular tissue diameters, and characteristic of CT-depicted gynecomastia were compared. RESULTS On multivariate logistic regression analysis, mean breast glandular tissue diameter (adjusted odds ratio [aOR] 1.13, 95% confidence interval [CI] 1.08-1.19), maximum breast glandular tissue diameter (aOR 1.14, 95% CI 1.08-1.20), prevalence of CT-depicted gynecomastia (aOR 21.71, 95% CI 5.39-87.38), dendritic or diffuse pattern of gynecomastia (aOR 35.30, 95% CI 8.02-155.40), and bilateral gynecomastia (aOR 41.96, 95% CI 10.20-172.69) were positively associated with SBMA, but not ALS. On receiver operating characteristic (ROC) analysis, the area under the curve of the mean breast tissue diameter for predicting SBMA was 0.92 with the optimal cutoff value of 16.5 mm. The ROC analysis showed that a maximum breast tissue diameter of 18.6 mm can also effectively distinguish SBMA from controls. CONCLUSION These findings suggest that the evaluation of breast glandular tissue on thoracic CT could be a screening examination to distinguish SBMA patients and assist in its differential diagnosis.
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Affiliation(s)
- Shin Iida
- Departments of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Masataka Nakamura
- Departments of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan.
| | - Kumi Itani
- Departments of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Satoshi Morise
- Departments of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Takenobu Kunieda
- Departments of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Norihiro Takenouchi
- Departments of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan; Department of Microbiology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Satoshi Kaneko
- Departments of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Yusuke Yakushiji
- Departments of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
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Tsutsui S, Hatano T, Funada R, Kaneko S. Microorganisms capable of producing polysaccharides from D-xylose. J Appl Glycosci (1999) 2022; 69:83-89. [DOI: 10.5458/jag.jag.jag-2022_0008] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/05/2022] [Indexed: 10/10/2022] Open
Affiliation(s)
- Sosyu Tsutsui
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus
| | | | - Ryo Funada
- Faculty of Agriculture, Tokyo University of Agriculture and Technology
| | - Satoshi Kaneko
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus
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14
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Ghaznavi C, Yoneoka D, Kawashima T, Eguchi A, Murakami M, Gilmour S, Kaneko S, Kunishima H, Naito W, Sakamoto H, Maruyama-Sakurai K, Takahashi A, Takayama Y, Tanoue Y, Yamamoto Y, Yasutaka T, Miyata H, Nomura S. Factors associated with reversals of COVID-19 vaccination willingness: Results from two longitudinal, national surveys in Japan 2021-2022. Lancet Reg Health West Pac 2022; 27:100540. [PMID: 35892009 PMCID: PMC9302915 DOI: 10.1016/j.lanwpc.2022.100540] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
BACKGROUND Research characterizing changes of heart with respect to vaccine intention is scarce, and very little research considers those who were initially vaccine willing but became hesitant. Here, we sought to assess the factors related to reversals of vaccine willingness. METHODS We conducted a longitudinal, national survey on vaccination intention among Japanese adults aged 20 years or older, with the first questionnaire performed in February-March 2021 (N = 30,053) and the follow-up in February 2022 (N = 19,195, response rate 63.9%). The study population comprised those who reported vaccine willingness in the first survey, with the outcome variable being development of vaccine hesitancy at follow-up. We performed a regression analysis of vaccination status using sociodemographic, health-related, psychologic/attitudinal, and information-related variables as predictors. We used the sparse group minimax concave penalty (MCP) to select the optimum group of covariates for the logistic regression. FINDINGS Of 11,118 (57.9%) respondents who previously expressed interest in vaccination, 10,684 (96.1%) and 434 (3.9%) were in the vaccine willing and hesitant groups, respectively. Several covariates were found to significantly predict vaccine hesitancy, including marital status, influenza vaccine history, COVID-19 infection/testing history, engagement in COVID-19 preventive measures, perceived risks/benefits of the COVID-19 vaccine, and attitudes regarding vaccination policies and norms. The use of certain information sources was also associated with vaccine hesitancy. INTERPRETATION Sociodemographic, health-related, psychologic/attitudinal, and information-related variables predicted the development of vaccine hesitancy among those with prior willingness. Most of these predictors were also associated with vaccination status. FUNDING The present work was supported in part by a grant from the Kanagawa Prefectural Government of Japan and by AIST government subsidies.
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Affiliation(s)
- Cyrus Ghaznavi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Medical Education Program, Washington University School of Medicine in St Louis, Saint Louis, USA
| | - Daisuke Yoneoka
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takayuki Kawashima
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Mathematical and Computing Science, Tokyo Institute of Technology, Tokyo, Japan
| | - Akifumi Eguchi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Michio Murakami
- Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan
| | - Stuart Gilmour
- Graduate School of Public Health, St. Luke's International University, Tokyo, Japan
| | - Satoshi Kaneko
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Hiroyuki Kunishima
- Department of Infectious Diseases, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Wataru Naito
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Haruka Sakamoto
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Department of Hygiene and Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Keiko Maruyama-Sakurai
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
| | - Arata Takahashi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoshihiro Takayama
- Department of International Health and Medical Anthropology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- Division of Infectious Diseases, Okinawa Prefectural Chubu Hospital, Uruma, Okinawa, Japan
| | - Yuta Tanoue
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Institute for Business and Finance, Waseda University, Tokyo, Japan
| | | | - Tetsuo Yasutaka
- Research Institute for Geo-Resources and Environment, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan
| | - Hiroaki Miyata
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Department of International Health and Medical Anthropology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Shuhei Nomura
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
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15
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Nomura S, Eguchi A, Yoneoka D, Murakami M, Ghaznavi C, Gilmour S, Kaneko S, Kawashima T, Kunishima H, Naito W, Sakamoto H, Maruyama-Sakurai K, Takahashi A, Takayama Y, Tanoue Y, Yamamoto Y, Yasutaka T, Miyata H. Characterising reasons for reversals of COVID-19 vaccination hesitancy among Japanese people: One-year follow-up survey. Lancet Reg Health West Pac 2022; 27:100541. [PMID: 35892010 PMCID: PMC9302916 DOI: 10.1016/j.lanwpc.2022.100541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Vaccine hesitancy is a global public health threat. We present unique data that characterises those who experienced reversals of COVID-19 vaccination hesitancy in Japan. METHODS We administered a questionnaire on vaccination intention among 30053 Japanese adults aged 20 years or older before the COVID-19 vaccination was available to the general population (first survey) and conducted a follow-up survey on vaccination status one year later in February 2022 (second survey). Those who responded in the first survey that they did not intend to be vaccinated or were unsure and then responded in the second survey that they were vaccinated or intend to be vaccinated were asked about the reasons for their change of heart. Based on previous literature and expert opinion, 31 reasons for changing vaccination intention were compiled and respondents were asked to choose which among them applied to themselves, with multiple responses possible. Based on the results of those responses, each individual was then clustered using the Uniform Manifold Approximation and Projection (UMAP) dimensionality reduction technique and Ordering Points To Identify the Clustering Structure (OPTICS) algorithm. We then identified unique characteristics among each of the sub-populations (clusters). FINDINGS In the second survey we received 19195 responses (response rate 63.9%), of which 8077 responded 'no' or 'not sure' in the first survey regarding their intention to be vaccinated. Of these, 5861 responded having received or intending to receive the vaccine (72.6%). We detected six and five sub-populations (clusters) among the 'no' group and 'not sure' group, respectively. The clusters were characterized by perceived benefits of vaccination, including the COVID-19 vaccine, awareness of the COVID-19 vaccination status of those close to them, recognition of the social significance of COVID-19 vaccination for the spread of infection, and dispelled concerns about short-term adverse reactions and the safety of the COVID-19 vaccine. Work and personal relationship reasons were also found to be a unique overarching reason for vaccination changes of heart only among those who did not intend to vaccinate. INTERPRETATION Those who changed their intention to accept COVID-19 vaccination as well as their unique characteristics as detailed in this study will be important entry points when discussing how to promote vaccination to those who are hesitant to vaccinate in the future. FUNDING The present work was supported in part by a grant from the Kanagawa Prefectural Government of Japan and by AIST government subsidies.
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Affiliation(s)
- Shuhei Nomura
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
| | - Akifumi Eguchi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Daisuke Yoneoka
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Infectious Disease Surveillance Center at the National Institute of Infectious Disease, Tokyo, Japan
| | - Michio Murakami
- Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan
| | - Cyrus Ghaznavi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Medical Education Program, Washington University School of Medicine in St Louis, Saint Louis, United States
| | - Stuart Gilmour
- Graduate School of Public Health, St. Luke's International University, Tokyo, Japan
| | - Satoshi Kaneko
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Takayuki Kawashima
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Mathematical and Computing Science, Tokyo Institute of Technology, Tokyo, Japan
| | - Hiroyuki Kunishima
- Department of Infectious Diseases, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Wataru Naito
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Haruka Sakamoto
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Department of Hygiene and Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Keiko Maruyama-Sakurai
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
| | - Arata Takahashi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoshihiro Takayama
- Department of International Health and Medical Anthropology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- Division of Infectious Diseases, Okinawa Prefectural Chubu Hospital, Uruma, Okinawa, Japan
| | - Yuta Tanoue
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Institute for Business and Finance, Waseda University, Tokyo, Japan
| | | | - Tetsuo Yasutaka
- Research Institute for Geo-Resources and Environment, National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Japan
| | - Hiroaki Miyata
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Department of Healthcare Quality Assessment, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Harashima T, Egami Y, Homma K, Jono Y, Kaneko S, Fujii S, Ono T, Nishino T. Unique Electrical Signature of Phosphate for Specific Single-Molecule Detection of Peptide Phosphorylation. J Am Chem Soc 2022; 144:17449-17456. [DOI: 10.1021/jacs.2c05787] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takanori Harashima
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-11 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Yoshiyuki Egami
- Division of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Kanji Homma
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-11 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Yuki Jono
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-11 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Satoshi Kaneko
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-11 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Shintaro Fujii
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-11 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Tomoya Ono
- Department of Electrical and Electronic Engineering, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Tomoaki Nishino
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-11 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
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Kawaguchi Y, Kita R, Kimura T, Goto R, Takayama T, Izumi N, Kudo M, Kaneko S, Yamanaka N, Inomata M, Shimada M, Baba H, Koike K, Omata M, Makuuchi M, Matsuyama Y, Yamada Y, Kokudo N, Hasegawa K. 723P Medical expenditures and treatment efficacy of patients who had initial hepatocellular carcinoma and underwent surgery or radiofrequency ablation: Accompanying research of the SURF trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.847] [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: 11/29/2022] Open
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18
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Nakamura M, Nakayama K, Murakami A, Morise S, Kaneko S, Kusaka H, Yakushiji Y. Early presentation of lower urinary tract and bowel dysfunction in sporadic amyotrophic lateral sclerosis: A case report. eNeurologicalSci 2022; 28:100413. [PMID: 35769919 PMCID: PMC9234590 DOI: 10.1016/j.ensci.2022.100413] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/25/2022] [Accepted: 06/11/2022] [Indexed: 11/27/2022] Open
Abstract
An autopsy case of sporadic amyotrophic lateral sclerosis (ALS) with lower urinary tract (LUT) and bowel dysfunction is reported. The dysfunction occurred simultaneously with motor neuron symptoms in the early stages of the illness. A 75-year-old man developed exertional dyspnea and constipation following weight loss. Subsequently, he developed swallowing disturbance, fecal incontinence, and urinary retention. Neurological examination showed dysphagia, muscle weakness of the upper limbs, and prominent fasciculation affecting all four limbs and the tongue. All deep tendon reflexes were diminished, but the left plantar response was extensor. Orthostatic hypotension (OH) and the anal reflex were absent. Neuropathological findings did not show neuronal loss and gliosis in the thoracic and sacral intermediolateral nucleus (IML) and in Onuf's nucleus, whereas gliosis was observed in the periaqueductal gray (PAG) and striatum. Therefore, urinary retention may have resulted from involvement of the PAG. Phosphorylated TAR DNA binding protein 43 kDa (p-TDP-43)-positive inclusions were present in the peripheral nerves within the thoracic sympathetic ganglia, as well as the IML of the thoracic spinal cord. However, considering the lack of OH, the IML and peripheral sympathetic nerves unlikely played major roles. Furthermore, neuronal loss or p-TDP-43-immunoreactive deposits were absent in the Auerbach and Meissner plexuses of the rectum, suggesting that the responsible anatomical sites for fecal incontinence could not be found. Although it is difficult to elucidate the precise neuropathological lesions corresponding to LUT and bowel dysfunction, physicians need to recognize that neurogenic bladder and bowel dysfunction can occur in patients with ALS.
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Affiliation(s)
- Masataka Nakamura
- Department of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Kentaro Nakayama
- Department of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Aya Murakami
- Department of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Satoshi Morise
- Department of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Satoshi Kaneko
- Department of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Hirofumi Kusaka
- Department of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Yusuke Yakushiji
- Department of Neurology, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
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Finn R, Kudo M, Merle P, Meyer T, Qin S, Ikeda M, Xu R, Edeline J, Ryoo BY, Ren Z, Cheng AL, Galle P, Kaneko S, Kumada H, Wang A, Mody K, Dubrovsky L, Siegel A, Llovet J. LBA34 Primary results from the phase III LEAP-002 study: Lenvatinib plus pembrolizumab versus lenvatinib as first-line (1L) therapy for advanced hepatocellular carcinoma (aHCC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.08.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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20
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Takahashi T, Shimazaki K, Tanimura Y, Amagai A, Sawado A, Akaike H, Mogi M, Kaneko S, Kato M, Okimura T, Miki T, Ezoe K, Kato K, Borini A, Coticchio G. P-152 The first morphokinetic map of human abnormal fertilisation. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Study question
What are the similarities and differences between the morphokinetics of abnormal, one- (1PN) and three-pronuclear (3PN) and normal bi-pronuclear (2PN) fertilisation?
Summary answer
The morphokinetic analysis of 1PN/3PN fertilisation reveals novel aspects of abnormal early development.
What is known already
Assisted reproduction technology has allowed the observation of early human development. Initially assessed statically at a single time point, fertilization has revealed its complexity once observed by Time-Lapse Microscopy (TLM). Detailed morphokinetic analysis of fertilisation has been reported in the last few years, unveiling previously unknown cytoplasmic phenomena (e.g. the cytoplasmic wave and halo) and the importance of cell symmetry for embryo development. At present, abnormal fertilization remains neglected, despite potential for understanding the physiology and pathology of early human development.
Study design, size, duration
This retrospective study involved TLM observation of normally (2PN, n = 2,685) and abnormally (1PN, n = 41; 3PN, n = 127) fertilised oocytes generated in ICSI cycles. Oocyte retrievals were carried out after the clomiphene citrate-based minimal ovarian stimulation, between October 2019 and December 2020. Oocytes of patients with different diagnoses of infertility were included in the analysis, while cases involving cryopreserved gametes or surgically retrieved sperm were excluded.
Participants/materials, setting, methods
Microinjected oocytes were assessed by a combined TLM-culture system (Embryoscope). Oocytes not suitable for TLM assessment, due to excess of residual corona cells or inadequate orientation for correct observation, were not analysed. Phenomena, relevant to meiotic resumption, pronuclear dynamics, cytoplasmic/cortical modifications, cleavage pattern, and embryo quality, were annotated and compared between groups.
Main results and the role of chance
Second polar body (PBII) extrusion was observed in all 1PN- and in a majority of 3PN-zygotes (92.1%). A 0.3-hour delay in PBII extrusion was confirmed in 3PN-zygotes (P = 0.0439). In a significant proportion of 3PN-zygotes, a third (female) PN formed from reabsorption of the PBII. The cytoplasmic wave was observed not only in 2PN- and 3PN-, but also in 1PN-zygotes. The presence and position of cytoplasmic halo were comparable among the three classes of zygotes. However, the duration of the cytoplasmic halo was prolonged in 1PN-zygotes (P < 0.0001). PN juxtaposition immediately before PN breakdown was less frequent in 3PN- compared with 2PN-zygotes (P = 0.0159). Furthermore, asynchronous PN breakdown was increased in 3PN- compared with 2PN-zygotes (P = 0.0026). The PN area of 1PN- was larger than that of 2PN-zygotes; however, the PN area of 3PN-zygotes was smaller than that of 2PN-zygotes. In 1PN-zygotes, a developmental delay was observed starting from the disappearance of the cytoplasmic halo, reaching 9 hours at the time of cleavage (P < 0.0001). A higher incidence of abnormal cleavage (P = 0.0019) and blastomere fragmentation (P < 0.0001) was observed in 1PN-zygotes. Cleavage progression was increasingly affected especially in 1PN-zygotes, resulting in blastocyst formation rates of 70.2%, 12.2% and 53.5% in 2PN-, 1PN- and 3PN-zygotes, respectively (P < 0.0001).
Limitations, reasons for caution
The study data derive from treatments carried out in a single centre. The study findings therefore require independent verification from other research groups.
Wider implications of the findings
These observations suggest that 1PN and 3PN fertilisation follow the general pattern of normal fertilization. Crucially, they also shed light on diverse and previously undescribed phenomena - e.g. reabsorption of the PBII in 3PN zygotes - underpinning the origins of abnormal fertilization and potentially clinically relevant.
Trial registration number
not applicable
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Affiliation(s)
- T Takahashi
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - K Shimazaki
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - Y Tanimura
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - A Amagai
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - A Sawado
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - H Akaike
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - M Mogi
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - S Kaneko
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - M Kato
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - T Okimura
- Kato Ladies Clinic, IVF Laboratory , Tokyo, Japan
| | - T Miki
- Kato Ladies Clinic, R&D Division , Tokyo, Japan
| | - K Ezoe
- Kato Ladies Clinic, R&D Division , Tokyo, Japan
| | - K Kato
- Kato Ladies Clinic, Gynaecology , Tokyo, Japan
| | - A Borini
- 9.baby, Family and Fertility Center , Bologna, Italy
| | - G Coticchio
- 9.baby, Family and Fertility Center , Bologna, Italy
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21
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Wandera EA, Muriithi B, Kathiiko C, Mutunga F, Wachira M, Mumo M, Mwangi A, Tinkoi J, Meiguran M, Akumu P, Ndege V, Kasiku F, Ang'awa J, Mozichuki R, Kaneko S, Morita K, Ouma C, Ichinose Y. Impact of integrated water, sanitation, hygiene, health and nutritional interventions on diarrhoea disease epidemiology and microbial quality of water in a resource-constrained setting in Kenya: A controlled intervention study. Trop Med Int Health 2022; 27:669-677. [PMID: 35700209 PMCID: PMC9541685 DOI: 10.1111/tmi.13793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Indexed: 12/14/2022]
Abstract
Objectives We assessed the impact of water, hygiene and sanitation (WASH), maternal, new‐born and child health (MNCH), nutrition and early childhood development (ECD) on diarrhoea and microbial quality of water in a resource‐constrained rural setting in Kenya. Methods Through a controlled intervention study, we tested faecal and water samples collected from both the intervention and control sites before and after the interventions using microbiological, immunological and molecular assays to determine the prevalence of diarrhoeagenic agents and microbial quality of water. Data from the hospital registers were used to estimate all‐cause diarrhoea prevalence. Results After the interventions, we observed a 58.2% (95% CI: 39.4–75.3) decline in all‐cause diarrhoea in the intervention site versus a 22.2% (95% CI: 5.9–49.4) reduction of the same in the control site. Besides rotavirus and pathogenic Escherichia coli, the rate of isolation of other diarrhoea‐causing bacteria declined substantially in the intervention site. The microbial quality of community and household water improved considerably in both the intervention (81.9%; 95% CI: 74.5%–87.8%) and control (72.5%; 95% CI: 64.2%–80.5%) sites with the relative improvements in the intervention site being slightly larger. Conclusions The integrated WASH, MNCH, nutrition and ECD interventions resulted in notable decline in all‐cause diarrhoea and improvements in water quality in the rural resource‐limited population in Kenya. This indicates a direct public health impact of the interventions and provides early evidence for public health policy makers to support the sustained implementation of these interventions.
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Affiliation(s)
- Ernest Apondi Wandera
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya.,Centre for Virus Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Betty Muriithi
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya
| | - Cyrus Kathiiko
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya
| | - Felix Mutunga
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya
| | - Mary Wachira
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya
| | - Maurine Mumo
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya
| | - Anne Mwangi
- Department of Health and Nutrition, World Vision Kenya, Nairobi, Kenya
| | - Joseph Tinkoi
- Department of Health and Nutrition, World Vision Kenya, Nairobi, Kenya
| | - Mirasine Meiguran
- Department of Health and Nutrition, World Vision Kenya, Nairobi, Kenya
| | - Pius Akumu
- Department of Health and Nutrition, World Vision Kenya, Nairobi, Kenya
| | - Valeria Ndege
- Department of Health and Nutrition, World Vision Kenya, Nairobi, Kenya
| | - Fredrick Kasiku
- Department of Health and Nutrition, World Vision Kenya, Nairobi, Kenya
| | - James Ang'awa
- Department of Health and Nutrition, World Vision Kenya, Nairobi, Kenya
| | | | - Satoshi Kaneko
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya
| | - Kouichi Morita
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya
| | - Collins Ouma
- Department of Biomedical Sciences and Technology, Maseno University, Kenya
| | - Yoshio Ichinose
- Institute of Tropical Medicine, Nagasaki University-Kenya Medical Research Institute, Nairobi, Kenya
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22
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Kottmaier M, Inaba O, Phillips K, Adsett M, Hayes J, Gkalapis C, Lengauer S, Clementy N, Bailey C, Kaneko S. Initial experience using a novel algorithm to calculate omnipolar electrograms using a high-density grid-style catheter. Europace 2022. [DOI: 10.1093/europace/euac053.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background/Introduction
A novel mapping algorithm recently became available in Europe and select countries in the Asia Pacific region. EnSite Omnipolar Technology (OT) utilizes the Advisor HD Grid Mapping Catheter, Sensor Enabled (HD Grid) to calculate electrograms in 360 degrees from two bipolar and three unipolar electrograms acquired from a triangular set of three electrodes. This software also enables calculation of wavefront characteristics including maximum voltage, activation direction and wave speed. Procedural characteristics and clinical utilization of this novel software have not yet been reported.
Purpose
To examine the clinical utility and procedural characteristics associated with the use of this novel mapping algorithm among participating centers.
Methods
Acute procedural data were prospectively collected in 386 cases at 52 centers utilizing the newly approved mapping software in the initial phases of commercialization in Europe and the Asia Pacific region. Procedural characteristics recorded included indication for mapping/ablation, navigation mode, mapping reference, and maps and tools used to diagnose/locate ablation targets.
Results
A total of 14 indications for mapping and ablation were represented including AF, atypical flutter, and VT (Table 1). VoXel (magnetic primary) navigation mode was used in most cases (n=325, 84%). The CS catheter was used as the map reference in 280 cases (73%). A variety of workflows were used with OT to diagnose and locate ablation targets including voltage maps (n=275, 71%), LAT maps (n=226, 59%), OT activation vectors (n=124, 32%), propagation maps (n=94, 24%), and sparkle maps (n=69, 18%); note: total exceeds 100%, multiple workflows per case observed. EnSite LiveView Dynamic Display (LiveView) was used in 129 cases (33%) to diagnose and locate ablation targets, including 28 (22%) where OT activation vectors were used with LiveView. Several benefits of OT were reported including rapid identification of ablation target(s) (n=133, 35%), higher point density (n=82, 21%), better signals (n=69, 18%), and improved procedure efficiency (n=48, 12%).
Conclusion(s)
Initial experience with this novel mapping software in Europe and the Asia-Pacific region illustrated utility in a variety of arrhythmias to diagnose and locate ablation targets. The use of OT provided several benefits including rapid identification of ablation targets and higher point density, however further examination of its impact on procedural efficiencies and acute outcomes is likely warranted.
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Affiliation(s)
- M Kottmaier
- German Heart Center of Munich, Munich, Germany
| | - O Inaba
- Japanese Red Cross Saitama Hospital, Saitama, Japan
| | - K Phillips
- Greenslopes Private Hospital, Brisbane, Australia
| | - M Adsett
- St Andrews War Memorial Hospital, Brisbane, Australia
| | - J Hayes
- St Andrews War Memorial Hospital, Brisbane, Australia
| | | | - S Lengauer
- German Heart Center of Munich, Munich, Germany
| | - N Clementy
- University Hospital of Tours, Tours, France
| | - C Bailey
- Abbott, St. Paul, United States of America
| | - S Kaneko
- Toyota Kosei Hospital, Toyota, Japan
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23
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Larson PS, Ndemwa M, Thomas AF, Tamari N, Diela P, Changoma M, Mohamed A, Larson MC, Ketenci KC, Goto K, Kaneko S. Snakebite victim profiles and treatment-seeking behaviors in two regions of Kenya: results from a health demographic surveillance system. Trop Med Health 2022; 50:31. [PMID: 35488352 PMCID: PMC9052588 DOI: 10.1186/s41182-022-00421-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 02/10/2022] [Accepted: 04/11/2022] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Snakebites are a major cause of permanent injury and death among poor, rural populations in developing countries, including those in East Africa. This research characterizes snakebite incidence, risk factors, and subsequent health-seeking behaviors in two regions of Kenya using a mixed methods approach. METHODS As a part of regular activities of a health demographic surveillance system, household-level survey on snakebite incidence was conducted in two areas of Kenya: Kwale along the Kenyan Coast and Mbita on Lake Victoria. If someone in the home was reported to have been bitten in the 5 years previous to the visit, a survey instrument was administered. The survey gathered contextual information on the bite, treatment-seeking behavior and clinical manifestations. To obtain deeper, contextual information, respondents were also asked to narrate the bite incident, subsequent behavior and outcomes. RESULTS 8775 and 9206 households were surveyed in Kwale and Mbita, respectively. Out of these, 453 (5.17%) and 92 (1.00%) households reported that at least one person had been bitten by a snake in the past 5 years. Deaths from snakebites were rare (4.04%), but patterns of treatment seeking varied. Treatment at formal care facilities were sought for 50.8% and at traditional healers for 53.3%. 18.4% sought treatment from both sources. Victims who delayed receiving treatment from a formal facility were more likely to have consulted a traditional healer (OR 8.8995% CI [3.83, 20.64]). Delays in treatment seeking were associated with significantly increased odds of having a severe outcome, including death, paralysis or loss of consciousness (OR 3.47 95% CI [1.56; 7.70]). CONCLUSION Snakebite incidence and outcomes vary by region in Kenya, and treatment-seeking behaviors are complex. Work needs to be done to better characterize the spatial distribution of snakebite incidence in Kenya and efforts need to be made to ensure that victims have sufficient access to effective treatments to prevent death and serious injury.
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Affiliation(s)
- Peter S Larson
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, Kenya, Nagasaki, Nagasaki, Japan. .,Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA. .,University of Michigan Institute for Social Research, Ann Arbor, MI, USA.
| | - Morris Ndemwa
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, Kenya, Nagasaki, Nagasaki, Japan
| | - Aleksandra F Thomas
- University of Michigan, Literature, Science and the Arts, Ann Arbor, MI, USA
| | - Noriko Tamari
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, Kenya, Nagasaki, Nagasaki, Japan
| | - Paul Diela
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, Kenya, Nagasaki, Nagasaki, Japan
| | - Mwatasa Changoma
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, Kenya, Nagasaki, Nagasaki, Japan.,Kenya Medical Research Institute, Nairobi, Kenya
| | | | | | - Kaan Cem Ketenci
- University of Michigan Institute for Social Research, Ann Arbor, MI, USA
| | - Kensuke Goto
- Division of Health and Safety Sciences Education, Osaka Kyoiku University, Osaka, Japan
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24
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Kwon H, Schafer JM, Song NJ, Kaneko S, Li A, Xiao T, Ma A, Allen C, Das K, Zhou L, Riesenberg B, Chang Y, Weltge P, Velegraki M, Oh DY, Fong L, Ma Q, Sundi D, Chung D, Li X, Li Z. Androgen conspires with the CD8 + T cell exhaustion program and contributes to sex bias in cancer. Sci Immunol 2022; 7:eabq2630. [PMID: 35420889 DOI: 10.1126/sciimmunol.abq2630] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sex bias exists in the development and progression of non-reproductive organ cancers, but the underlying mechanisms are enigmatic. Studies so far have focused largely on sexual dimorphisms in cancer biology and socioeconomic factors. Here, we establish a role for CD8+ T cell-dependent anti-tumor immunity in mediating sex differences in tumor aggressiveness, which is driven by the gonadal androgen but not sex chromosomes. A male bias exists in the frequency of intratumoral antigen-experienced Tcf7/TCF1+ progenitor exhausted CD8+ T cells that are devoid of effector activity as a consequence of intrinsic androgen receptor (AR) function. Mechanistically, we identify a novel sex-specific regulon in progenitor exhausted CD8+ T cells and a pertinent contribution from AR as a direct transcriptional trans-activator of Tcf7/TCF1. The T cell intrinsic function of AR in promoting CD8+ T cell exhaustion in vivo was established using multiple approaches including loss-of-function studies with CD8-specific Ar knockout mice. Moreover, ablation of the androgen-AR axis rewires the tumor microenvironment to favor effector T cell differentiation and potentiates the efficacy of anti-PD-1 immune checkpoint blockade. Collectively, our findings highlight androgen-mediated promotion of CD8+ T cell dysfunction in cancer and imply broader opportunities for therapeutic development from understanding sex disparities in health and disease.
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Affiliation(s)
- Hyunwoo Kwon
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA.,Medical Scientist Training Program, College of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Johanna M Schafer
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - No-Joon Song
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - Satoshi Kaneko
- Department of Urology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Anqi Li
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - Tong Xiao
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - Anjun Ma
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA.,Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
| | - Carter Allen
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA.,Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
| | - Komal Das
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - Lei Zhou
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - Brian Riesenberg
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - Yuzhou Chang
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA.,Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
| | - Payton Weltge
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - Maria Velegraki
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
| | - David Y Oh
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Lawrence Fong
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.,Parker Institute for Cancer Immunotherapy, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Qin Ma
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
| | - Debasish Sundi
- Department of Urology, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Dongjun Chung
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA.,Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
| | - Xue Li
- Department of Urology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.,Samuel Oschin Comprehensive Cancer Institute, Departments of Medicine and Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Zihai Li
- Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center - The James, Columbus, OH 43210, USA
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25
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Adachi M, Murakami M, Yoneoka D, Kawashima T, Hashizume M, Sakamoto H, Eguchi A, Ghaznavi C, Gilmour S, Kaneko S, Kunishima H, Maruyama-Sakurai K, Tanoue Y, Yamamoto Y, Miyata H, Nomura S. Factors associated with the risk perception of COVID-19 infection and severe illness: A cross-sectional study in Japan. SSM Popul Health 2022; 18:101105. [PMID: 35493404 PMCID: PMC9040447 DOI: 10.1016/j.ssmph.2022.101105] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 12/12/2022] Open
Abstract
Understanding COVID-19 risk perception may help inform public health messaging aimed at encouraging preventive measures and improving countermeasures against the pandemic. We conducted an online survey of 29,708 Japanese adults in February 2021 and estimated the associations between COVID-19 risk perception and a broad array of individual factors. Two logistic regressions were constructed to estimate factors associated with the risk perception of COVID-19 (defined as responding that one might become infected within the next 6 months), and of severe illness among those who responded that they might become infected (defined as responding that one would become severely ill). After adjusting for covariates, those with a higher perceived risk of the COVID-19 vaccine had higher odds of risk perception for both infection and severe illness. Interestingly, those with higher odds of risk perception of being infected were more likely to report obtaining their information from healthcare workers whereas those with lower odds were more likely to report obtaining their information from the Internet or the government; those with lower odds of risk perception of being severely ill were more likely to report obtaining their information from the Internet. The higher the trust level in the government as a COVID-19 information source, the lower the odds of both risk perception of being infected and becoming severely ill. The higher the trust levels in social networking services as a COVID-19 information source, the higher the odds of risk perception of becoming severely ill. Public health messaging should address the factors identified in our study. Perceived risks of a COVID-19 vaccine was related to risk perception of COVID-19 infection and severe illness. Getting information from healthcare workers was related to higher risk perception of infection. Higher trust in SNS was related to higher risk perception of COVID-19 of severe illness.
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Affiliation(s)
- Megumi Adachi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Michio Murakami
- Division of Scientific Information and Public Policy, Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan
| | - Daisuke Yoneoka
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takayuki Kawashima
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Mathematical and Computing Science, Tokyo Institute of Technology, Tokyo, Japan
| | - Masahiro Hashizume
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Haruka Sakamoto
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Department of Hygiene and Public Health, Tokyo Women's Medical University, Tokyo, Japan
| | - Akifumi Eguchi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
| | - Cyrus Ghaznavi
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Medical Education Program, Washington University School of Medicine in St Louis, Saint Louis, USA
| | - Stuart Gilmour
- Graduate School of Public Health, St. Luke's International University, Tokyo, Japan
| | - Satoshi Kaneko
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Hiroyuki Kunishima
- Department of Infectious Diseases, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Keiko Maruyama-Sakurai
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
| | - Yuta Tanoue
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Institute for Business and Finance, Waseda University, Tokyo, Japan
| | | | - Hiroaki Miyata
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
| | - Shuhei Nomura
- Department of Health Policy and Management, School of Medicine, Keio University, Tokyo, Japan
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Tokyo Foundation for Policy Research, Tokyo, Japan
- Corresponding author. Department of Health Policy and Management, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
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26
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Ohnaka K, Watanabe T, Kaneko S, Takei T, Okada T, Aihara H, Mizoue T, Wakabayashi S. Anterior transcallosal interforniceal approach to the third ventricle via a cavum septum pellucidum and cavum vergae. Interdisciplinary Neurosurgery 2022. [DOI: 10.1016/j.inat.2021.101338] [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: 11/25/2022] Open
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Hashizume H, Taga S, Sakata MK, Taha MHM, Siddig EE, Minamoto T, Fahal AH, Kaneko S. Detection of multiple mycetoma pathogens using fungal metabarcoding analysis of soil DNA in an endemic area of Sudan. PLoS Negl Trop Dis 2022; 16:e0010274. [PMID: 35275915 PMCID: PMC8942264 DOI: 10.1371/journal.pntd.0010274] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 08/05/2021] [Revised: 03/23/2022] [Accepted: 02/23/2022] [Indexed: 01/14/2023] Open
Abstract
Mycetoma is a tropical disease caused by several fungi and bacteria present in the soil. Fungal mycetoma and eumycetoma are especially challenging to treat; therefore, prevention, early diagnosis, and early treatment are important, but it is also necessary to understand the geographic distribution of these pathogenic fungi. In this study, we used DNA metabarcoding methodology to identify fungal species from soil samples. Soil sampling was implemented at seven villages in an endemic area of Sennar State in Sudan in 2019, and ten sampling sites were selected in each village according to land-use conditions. In total, 70 soil samples were collected from ground surfaces, and DNA in the soil was extracted with a combined method of alkaline DNA extraction and a commercial soil DNA extraction kit. The region for universal primers was selected to be the ribosomal internal transcribed spacer one region for metabarcoding. After the second PCR for DNA library preparation, the amplicon-based DNA analysis was performed using next-generation sequencing with two sets of universal primers. A total of twelve mycetoma-causative fungal species were identified, including the prime agent, Madurella mycetomatis, and additional pathogens, Falciformispora senegalensis and Falciformispora tompkinsii, in 53 soil samples. This study demonstrated that soil DNA metabarcoding can elucidate the presence of multiple mycetoma-causative fungi, which may contribute to accurate diagnosis for patient treatment and geographical mapping. Mycetoma, a chronic subcutaneous and cutaneous disease, designated as a "neglected tropical disease," is prevalent in dry and hot climates. Fungal mycetoma is caused by more than 50 species of soil-dwelling pathogenic fungi, and its diagnosis and treatment can be challenging. The prevention of infection and early diagnosis and treatment are essential, and for this purpose, environmental assessment to understand the fungal habitat is necessary. In this study, we performed DNA metabarcoding analysis using next-generation sequencing (NGS) for mycetoma pathogens from environmental soil samples in Sudan. The results suggest that multiple causative agents of fungal mycetoma are widespread regardless of the environment and can be a source of infection anywhere in an endemic area. Based on the results of this study, we expect that the investigation of fungi in soil using NGS technology may help identify infection routes and create risk maps for the prevention of mycetoma.
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Affiliation(s)
- Hiroki Hashizume
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
- Department of Ecoepidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Suguru Taga
- Department of Ecoepidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Masayuki K. Sakata
- Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | | | | | - Toshifumi Minamoto
- Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | | | - Satoshi Kaneko
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
- Department of Ecoepidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- * E-mail:
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Kobayashi S, Kaneko S, Tamaki T, Kiguchi M, Tsukagoshi K, Terao J, Nishino T. Principal Component Analysis of Surface-Enhanced Raman Scattering Spectra Revealing Isomer-Dependent Electron Transport in Spiropyran Molecular Junctions: Implications for Nanoscale Molecular Electronics. ACS Omega 2022; 7:5578-5583. [PMID: 35187372 PMCID: PMC8851897 DOI: 10.1021/acsomega.1c07105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
The characterization of single-molecule structures could provide significant insights into the operation mechanisms of functional devices. Structural transformation via isomerization has been extensively employed to implement device functionalities. Although single-molecule identification has recently been achieved using near-field spectroscopy, discrimination between isomeric forms remains challenging. Further, the structure-function relationship at the single-molecule scale remains unclear. Herein, we report the observation of the isomerization of spiropyran in a single-molecule junction (SMJ) using simultaneous surface-enhanced Raman scattering (SERS) and conductance measurements. SERS spectra were used to discriminate between isomers based on characteristic peaks. Moreover, conductance measurements, in conjunction with the principal component analysis of the SERS spectra, clearly showed the isomeric effect on the conductance of the SMJ.
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Affiliation(s)
- Shuji Kobayashi
- Department
of Chemistry, School of Science, Tokyo Institute
of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Satoshi Kaneko
- Department
of Chemistry, School of Science, Tokyo Institute
of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
- JST
PRESTO, 4-1-8 Honcho, Kawaguchi 332-0012, Japan
| | - Takashi Tamaki
- Department
of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo 153-8902, Japan
| | - Manabu Kiguchi
- Department
of Chemistry, School of Science, Tokyo Institute
of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Kazuhito Tsukagoshi
- International
Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Tsukuba, Ibaraki 305-0044, Japan
| | - Jun Terao
- Department
of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo 153-8902, Japan
| | - Tomoaki Nishino
- Department
of Chemistry, School of Science, Tokyo Institute
of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
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Kaji T, Maegochi S, Ienaga K, Kaneko S, Okuma S. Critical behavior of nonequilibrium depinning transitions for vortices driven by current and vortex density. Sci Rep 2022; 12:1542. [PMID: 35091669 PMCID: PMC8799737 DOI: 10.1038/s41598-022-05504-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 11/06/2021] [Accepted: 01/13/2022] [Indexed: 11/24/2022] Open
Abstract
We study the critical dynamics of vortices associated with dynamic disordering near the depinning transitions driven by dc force (dc current I) and vortex density (magnetic field B). Independent of the driving parameters, I and B, we observe the critical behavior of the depinning transitions, not only on the moving side, but also on the pinned side of the transition, which is the first convincing verification of the theoretical prediction. Relaxation times, \documentclass[12pt]{minimal}
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\begin{document}$$\tau (I)$$\end{document}τ(I) and \documentclass[12pt]{minimal}
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\begin{document}$$\tau (B)$$\end{document}τ(B), to reach either the moving or pinned state, plotted against I and B, respectively, exhibit a power-law divergence at the depinning thresholds. The critical exponents of both transitions are, within errors, identical to each other, which are in agreement with the values expected for an absorbing phase transition in the two-dimensional directed-percolation universality class. With an increase in B under constant I, the depinning transition at low B is replaced by the repinning transition at high B in the peak-effect regime. We find a trend that the critical exponents in the peak-effect regime are slightly smaller than those in the low-B regime and the theoretical one, which is attributed to the slight difference in the depinning mechanism in the peak-effect regime.
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Affiliation(s)
- T Kaji
- Department of Physics, Tokyo Institute of Technology, 2-12-1, Ohokayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - S Maegochi
- Department of Physics, Tokyo Institute of Technology, 2-12-1, Ohokayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - K Ienaga
- Department of Physics, Tokyo Institute of Technology, 2-12-1, Ohokayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - S Kaneko
- Department of Physics, Tokyo Institute of Technology, 2-12-1, Ohokayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - S Okuma
- Department of Physics, Tokyo Institute of Technology, 2-12-1, Ohokayama, Meguro-ku, Tokyo, 152-8551, Japan.
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Hyuga A, Larson PS, Ndemwa M, Muuo SW, Changoma M, Karama M, Goto K, Kaneko S. Environmental and Household-Based Spatial Risks for Tungiasis in an Endemic Area of Coastal Kenya. Trop Med Infect Dis 2021; 7:2. [PMID: 35051118 PMCID: PMC8778305 DOI: 10.3390/tropicalmed7010002] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 11/23/2022] Open
Abstract
Tungiasis is a cutaneous parasitosis caused by an embedded female sand flea. The distribution of cases can be spatially heterogeneous even in areas with similar risk profiles. This study assesses household and remotely sensed environmental factors that contribute to the geographic distribution of tungiasis cases in a rural area along the Southern Kenyan Coast. Data on household tungiasis case status, demographic and socioeconomic information, and geographic locations were recorded during regular survey activities of the Health and Demographic Surveillance System, mainly during 2011. Data were joined with other spatial data sources using latitude/longitude coordinates. Generalized additive models were used to predict and visualize spatial risks for tungiasis. The household-level prevalence of tungiasis was 3.4% (272/7925). There was a 1.1% (461/41,135) prevalence of infection among all participants. A significant spatial variability was observed in the unadjusted model (p-value < 0.001). The number of children per household, earthen floor, organic roof, elevation, aluminum content in the soil, and distance to the nearest animal reserve attenuated the odds ratios and partially explained the spatial variation of tungiasis. Spatial heterogeneity in tungiasis risk remained even after a factor adjustment. This suggests that there are possible unmeasured factors associated with the complex ecology of sand fleas that may contribute to the disease's uneven distribution.
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Affiliation(s)
- Ayako Hyuga
- Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki-shi 852-8523, Nagasaki, Japan;
- Department of Eco-Epidemiology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki-shi 852-8523, Nagasaki, Japan;
| | - Peter S. Larson
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, C/O Centre for Microbiology Research, KEMRI, Nairobi P.O. Box 19993-00202, Kenya; (P.S.L.); (S.W.M.); (M.C.)
- Social Environment and Health, Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI 48109, USA
| | - Morris Ndemwa
- Department of Eco-Epidemiology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki-shi 852-8523, Nagasaki, Japan;
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, C/O Centre for Microbiology Research, KEMRI, Nairobi P.O. Box 19993-00202, Kenya; (P.S.L.); (S.W.M.); (M.C.)
| | - Sheru W. Muuo
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, C/O Centre for Microbiology Research, KEMRI, Nairobi P.O. Box 19993-00202, Kenya; (P.S.L.); (S.W.M.); (M.C.)
| | - Mwatasa Changoma
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, C/O Centre for Microbiology Research, KEMRI, Nairobi P.O. Box 19993-00202, Kenya; (P.S.L.); (S.W.M.); (M.C.)
| | - Mohamed Karama
- Centre of Public Health Research, Kenya Medical Research Institute (KEMRI), Off Mbagathi Road, Nairobi P.O. Box 54840-00200, Kenya;
| | - Kensuke Goto
- Division of Health and Safety Sciences Education, Department of Educational Collaboration, Osaka Kyoiku University, 4-698-1 Asahigaoka, Kashiwara-shi 582-8582, Osaka, Japan;
| | - Satoshi Kaneko
- Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki-shi 852-8523, Nagasaki, Japan;
- Department of Eco-Epidemiology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki-shi 852-8523, Nagasaki, Japan;
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) Project, C/O Centre for Microbiology Research, KEMRI, Nairobi P.O. Box 19993-00202, Kenya; (P.S.L.); (S.W.M.); (M.C.)
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Murakami A, Nakamura M, Tohge R, Kunieda T, Kaneko S, Yakushiji Y. [Cerebral amyloid angiopathy-related transient focal neurological episodes with diffusion-weighted imaging hyperintense lesions in subcortical white matter and cortical superficial siderosis]. Rinsho Shinkeigaku 2021; 61:874-877. [PMID: 34789627 DOI: 10.5692/clinicalneurol.cn-001638] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 72-year-old man presented with two episodes of migratory left-sided paresthesia lasting 10 min. At the first episode, diffusion-weighted imaging hyperintense lesions (DWIHLs) were seen in the right parietal lobe, suggesting an initial diagnosis of acute ischemic stroke, for which we administered antiplatelet therapy for secondary prevention. Four months later, he again developed transient migratory left-sided paresthesia. Gradient-echo T2*-weighted imaging at this time showed disseminated cortical superficial siderosis (cSS) and strictly cerebral microbleeds around the DWIHLs in the right parietal lobe. These findings led to a diagnosis of cerebral amyloid angiopathy and its related findings, including transient focal neurological episodes (TFNE) and DWIHLs, and antiplatelet medication was stopped. In clinical settings, although it is challenging to distinguish TFNE of hemorrhagic origin from cerebral ischemic symptoms, including transient ischemic attacks, this case suggests that even when elderly patients with transient neurological symptoms present with cortical DWIHLs, paramagnetic-sensitive MRI should be performed to check for cSS around the DWIHLs.
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Affiliation(s)
- Aya Murakami
- Department of Neurology, Kansai Medical University
| | | | - Rie Tohge
- Department of Neurology, Kansai Medical University
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Kudo M, Finn R, Ikeda M, Zhu A, Sung M, Baron A, Okusaka T, Kobayashi M, Kumada H, Kaneko S, Pracht M, Meyer T, Nagao S, Saito K, Mody K, Dubrovsky L, Llovet J. 68P A phase Ib study of lenvatinib + pembrolizumab (LEN + PEMBRO) in patients (pts) with unresectable hepatocellular carcinoma (uHCC): Study 116 follow-up analysis. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.086] [Citation(s) in RCA: 1] [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: 10/19/2022] Open
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33
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Wandera EA, Hatazawa R, Tsutsui N, Kurokawa N, Kathiiko C, Mumo M, Waithira E, Wachira M, Mwaura B, Nyangao J, Khamadi SA, Njau J, Fukuda S, Murata T, Taniguchi K, Ichinose Y, Kaneko S, Komoto S. Genomic characterization of an African G4P[6] human rotavirus strain identified in a diarrheic child in Kenya: Evidence for porcine-to-human interspecies transmission and reassortment. Infect Genet Evol 2021; 96:105133. [PMID: 34767977 DOI: 10.1016/j.meegid.2021.105133] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/27/2021] [Accepted: 11/03/2021] [Indexed: 01/04/2023]
Abstract
Human rotavirus strains having the unconventional G4P[6] genotype have been sporadically identified in diarrheic patients in different parts of the world. However, the whole genome of only one human G4P[6] strain from Africa (central Africa) has been sequenced and analyzed, and thus the exact origin and evolutionary pattern of African G4P[6] strains remain to be elucidated. In this study, we characterized the full genome of an African G4P[6] strain (RVA/Human-wt/KEN/KCH148/2019/G4P[6]) identified in a stool specimen from a diarrheic child in Kenya. Full genome analysis of strain KCH148 revealed a unique Wa-like genogroup constellation: G4-P[6]-I1-R1-C1-M1-A1-N1-T7-E1-H1. NSP3 genotype T7 is commonly found in porcine rotavirus strains. Furthermore, phylogenetic analysis showed that 10 of the 11 genes of strain KCH148 (VP7, VP4, VP6, VP1-VP3, NSP1, and NSP3-NSP5) appeared to be of porcine origin, the remaining NSP2 gene appearing to be of human origin. Therefore, strain KCH148 was found to have a porcine rotavirus backbone and thus is likely to be of porcine origin. Furthermore, strain KCH148 is assumed to have been derived through interspecies transmission and reassortment events involving porcine and human rotavirus strains. To our knowledge, this is the first report on full genome-based characterization of a human G4P[6] strain from east Africa. Our observations demonstrated the diversity of human G4P[6] strains in Africa, and provide important insights into the origin and evolutionary pattern of zoonotic G4P[6] strains on the African continent.
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Affiliation(s)
- Ernest Apondi Wandera
- Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Kenya Medical Research Institute (KEMRI)/Nagasaki University, Nairobi 19993-00202, Kenya
| | - Riona Hatazawa
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Naohisa Tsutsui
- Department of Project Planning and Management, Mitsubishi Tanabe Pharma Corporation, Chuo-ku, Tokyo 103-8405, Japan
| | - Natsuki Kurokawa
- Department of Project Planning and Management, Mitsubishi Tanabe Pharma Corporation, Chuo-ku, Tokyo 103-8405, Japan
| | - Cyrus Kathiiko
- Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Kenya Medical Research Institute (KEMRI)/Nagasaki University, Nairobi 19993-00202, Kenya
| | - Maurine Mumo
- Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Kenya Medical Research Institute (KEMRI)/Nagasaki University, Nairobi 19993-00202, Kenya
| | - Eunice Waithira
- Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Kenya Medical Research Institute (KEMRI)/Nagasaki University, Nairobi 19993-00202, Kenya
| | - Mary Wachira
- Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Kenya Medical Research Institute (KEMRI)/Nagasaki University, Nairobi 19993-00202, Kenya
| | - Boniface Mwaura
- Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Kenya Medical Research Institute (KEMRI)/Nagasaki University, Nairobi 19993-00202, Kenya
| | - James Nyangao
- Center for Virus Research, KEMRI, Nairobi 54840-00200, Kenya
| | | | - Joseph Njau
- Department of Pediatrics, Kiambu County Referral Hospital, Kiambu 39-00900, Kenya
| | - Saori Fukuda
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Takayuki Murata
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Koki Taniguchi
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Yoshio Ichinose
- Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Kenya Medical Research Institute (KEMRI)/Nagasaki University, Nairobi 19993-00202, Kenya
| | - Satoshi Kaneko
- Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Kenya Medical Research Institute (KEMRI)/Nagasaki University, Nairobi 19993-00202, Kenya
| | - Satoshi Komoto
- Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan.
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Yasuraoka K, Kaneko S, Kobayashi S, Tsukagoshi K, Nishino T. Surface-Enhanced Raman Scattering Stimulated by Strong Metal-Molecule Interactions in a C 60 Single-Molecule Junction. ACS Appl Mater Interfaces 2021; 13:51602-51607. [PMID: 34695353 DOI: 10.1021/acsami.1c09965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Specifying the geometric and electronic structures of a metal-molecule interface at the single-molecule level is crucial for the improvement of organic electronics. A single-molecule junction (SMJ) can be used to investigate interfaces because it can be regarded as an elementary unit of the interface structure. Although considerable efforts have been made to this end, the detection of structural changes in SMJs associated with metal-molecule interactions remains challenging. In this study, we detected the surface-enhanced Raman scattering (SERS) signal originating from the metal-molecule interaction change induced by a local structural change in a C60 SMJ. This junction has attracted wide attention owing to its unique electronic and vibronic properties. We fabricated a C60 SMJ using a lithographically fabricated Au electrode and measured the SERS spectra along with the current-voltage (I-V) response. By continuous measurement of SERS for the C60 SMJ, we obtained SERS spectra dependent on the local structural change. The analysis of the I-V response revealed that the vibration energy shift originates from the change in the local structure for different Au-C60 interactions. Based on the discrimination of the states in accordance with the Au-C60 interaction, we found that the probability of SERS for geometry with a large Au-C60 interaction was enhanced.
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Affiliation(s)
- Koji Yasuraoka
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Satoshi Kaneko
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8551, Japan
- JST PRESTO, 4-1-8 Honcho, Kawaguchi 332-0012, Japan
| | - Shuji Kobayashi
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Kazuhito Tsukagoshi
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Tsukuba, Ibaraki 305-0044, Japan
| | - Tomoaki Nishino
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8551, Japan
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Tohge R, Kaneko S, Morise S, Oki M, Takenouchi N, Murakami A, Nakamura M, Kusaka H, Yakushiji Y. Zonisamide attenuates the severity of levodopa-induced dyskinesia via modulation of the striatal serotonergic system in a rat model of Parkinson's disease. Neuropharmacology 2021; 198:108771. [PMID: 34474045 DOI: 10.1016/j.neuropharm.2021.108771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/13/2021] [Revised: 08/18/2021] [Accepted: 08/24/2021] [Indexed: 12/25/2022]
Abstract
Glutamate, GABA, acetylcholine, dopamine, and serotonin interact with each other to regulate the flow of neural information in the striatum. Serotonin type 1A receptor (5HT1A) is primarily expressed on glutamatergic nerve terminals, and 5HT1B is expressed on GABAergic medium spiny neurons (MSNs). Zonisamide (ZNS) reportedly improves the off period without worsening levodopa-induced dyskinesia (LID) in patients with advanced Parkinson's disease. In this study, LID model rats were prepared by administrating levodopa to unilaterally 6-OHDA-lesioned rats. We analyzed changes in serotonergic neurotransmission of LID model rats to elucidate the relationship between LID and the serotonergic system and pathomechanism of the anti-dyskinetic effects of ZNS. Abnormal involuntary movements (AIMs) were most severe in intermittently levodopa-treated rats but milder in rats intermittently medicated with levodopa and ZNS. Continuously levodopa-infused rats or intermittently ZNS-injected rats did not develop AIMs, and no differences in the expression of brain-derived neurotrophic factor, 5-HT transporter, 5HT1A, and 5HT1B mRNA between the lesioned striatum and normal side were observed. Expression of 5HT1B mRNA was elevated in the lesioned striatum of intermittently levodopa-treated rats, but this elevation was normalized by concomitant use of ZNS. The severity of AIMs was correlated with the ratio of 5HT1B to 5HT1A mRNA expression in the lesioned striatum, indicating that the anti-LID effect of ZNS is based on inhibition via 5HT1B receptors to direct pathway MSNs sensitized by intermittent levodopa treatment. Selectively acting serotonergic drugs, especially those that lower the 5HT1B to 5HT1A ratio, are promising new therapeutic agents to attenuate LID development.
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Affiliation(s)
- Rie Tohge
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan
| | - Satoshi Kaneko
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan.
| | - Satoshi Morise
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan
| | - Mitsuaki Oki
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan
| | - Norihiro Takenouchi
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan
| | - Aya Murakami
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan
| | - Masataka Nakamura
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan
| | - Hirofumi Kusaka
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan
| | - Yusuke Yakushiji
- Department of Neurology, Kansai Medical University, Hirakata city, Osaka, Japan
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Terashima T, Higashibeppu Y, Yamashita T, Sakata Y, Azuma M, Fujimoto K, Munakata H, Ishii M, Kaneko S. 954P Comparison of medical costs and outcome between hepatectomy and radiofrequency ablation for hepatocellular carcinoma. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.174] [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: 11/30/2022] Open
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Nagasawa K, Fukumoto K, Arai W, Hakkaku K, Kaneko S, Hirai K, Tsumura N. Layout Estimation for Layered Ink of 3D Printer to Reproduce the Desired Line Spread Function of Skin using Simulated Data 1. J Imaging Sci Technol 2021. [DOI: 10.2352/j.imagingsci.technol.2021.65.5.050501] [Citation(s) in RCA: 1] [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: 11/01/2022]
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Murakami A, Nakamura M, Nakamura Y, Kaneko S, Yakushiji Y, Kusaka H. An autopsy case report of neuronal intermediate filament inclusion disease presenting with predominantly upper motor neuron features. Neuropathology 2021; 41:357-365. [PMID: 34309938 DOI: 10.1111/neup.12741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/17/2020] [Revised: 04/02/2021] [Accepted: 04/04/2021] [Indexed: 11/27/2022]
Abstract
We describe an autopsy case of neuronal intermediate filament inclusion disease (NIFID), a subtype of frontotemporal lobar degeneration (FTLD) with the appearance of fused-in-sarcoma (FUS) inclusions (FTLD-FUS). A 57-year-old man developed dysarthria and dysphagia. One year and five months later, he was admitted to a hospital, and pseudobulbar palsy and right upper motor neuron signs were observed on examination. Needle electromyography revealed no active or chronic denervation. His neurological symptoms gradually deteriorated, and behavioral alterations occurred. He died of hemoperitoneum secondary to rupture of a ureteric tumor. The total duration of the disease was six years and 10 months. Neuropathologically, the frontal cortex, including the motor cortex, and the pyramidal tract were severely affected, whereas the lower motor neurons in the spinal cord and brainstem were mildly damaged. The striatum and substantia nigra were also severely damaged. Hyaline conglomerate inclusions, neuronal cytoplasmic inclusions with a distinct eosinophilic core (so-called cherry spot), Pick body-like inclusions, and eosinophilic round inclusions were observed in the remaining neurons. Immunohistochemical examination revealed that these inclusions were immunoreactive for FUS. HC inclusions were also immunoreactive for α-internexin and phosphorylated neurofilament protein. FUS-immunoreactive NCIs were abundant in the basal ganglia but not in the hippocampus, in contrast to previously reported NIFID cases. Furthermore, Bunina bodies identified by immunohistochemistry for cystatin C were also observed in the lower motor neurons. Bunina bodies may be present in NIFID. This case confirms the pathological heterogeneity of NIFID and supports the notion of the difference between amyotrophic lateral sclerosis and NIFID.
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Affiliation(s)
- Aya Murakami
- Department of Neurology, Kansai Medical University, Hirakata, Osaka, Japan
| | - Masataka Nakamura
- Department of Neurology, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yoshimi Nakamura
- Department of Neurology, Kansai Medical University, Hirakata, Osaka, Japan
| | - Satoshi Kaneko
- Department of Neurology, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yusuke Yakushiji
- Department of Neurology, Kansai Medical University, Hirakata, Osaka, Japan
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Yokoi KJ, Tsutsui S, Arakawa GY, Takaba M, Fujii K, Kaneko S. Molecular and biochemical characteristics of inulosucrase InuBK from Alkalihalobacillus krulwichiae JCM 11691. Biosci Biotechnol Biochem 2021; 85:1830-1838. [PMID: 34021568 DOI: 10.1093/bbb/zbab094] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 03/10/2021] [Accepted: 05/13/2021] [Indexed: 12/16/2022]
Abstract
Information about the inulosucrase of nonlactic acid bacteria is scarce. We found a gene encoding inulosucrase (inuBK) in the genome of the Gram-positive bacterium Alkalihalobacillus krulwichiae JCM 11691. The inuBK open reading frame encoded a protein comprising 456 amino acids. We expressed His-tagged InuBK in culture medium using a Brevibacillus system. The optimal pH and temperature of purified InuBK were 7.0-9.0 and 50-55 °C, respectively. The findings of high-performance anion-exchange chromatography, nuclear magnetic resonance spectroscopy, and high-performance size-exclusion chromatography with multiangle laser light scattering showed that the polysaccharide produced by InuBK was an inulin with a molecular weight of 3806, a polydispersity index (PI) of 1.047, and fructosyl chain lengths with 3-27 degrees of polymerization. The size of InuBK was smaller than commercial inulins, and the PI of the inulin that it produced was lower.
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Affiliation(s)
- Ken-Ji Yokoi
- Toyama Prefectural Food Research Institute, Toyama, Japan
| | - Sosyu Tsutsui
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus, Nishihara, Okinawa, Japan
| | - Gen-Ya Arakawa
- Toyama Prefectural Food Research Institute, Toyama, Japan
| | | | | | - Satoshi Kaneko
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus, Nishihara, Okinawa, Japan
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Larson PS, Ono M, Changoma M, Goto K, Kaneko S, Moji K, Minakawa N. Presence of dogs and proximity to a wildlife reserve increase household level risk of tungiasis in Kwale, Kenya. Trop Med Health 2021; 49:54. [PMID: 34225821 PMCID: PMC8256484 DOI: 10.1186/s41182-021-00338-8] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/26/2021] [Indexed: 11/19/2022] Open
Abstract
Introduction Tungiasis is a ectopic skin disease caused by some species of fleas in the Tunga genus, most notably T. penetrans. The disease afflicts poor and marginalized communities in developing countries. Transmission of tungiasis comprises a complex web of factors including domesticated animals and wildlife. This research explores animal and environmental risk factors for tungiasis in an area adjacent to a wildlife reserve in Kwale, Kenya. Methods A two-stage complex sampling strategy was used. Households were selected from three areas in and around Kwale Town, Kenya, an area close to the Kenyan Coast. Households were listed as positive if at least one member had tungiasis. Each household was administered a questionnaire regarding tungiasis behaviors, domesticated animal assets, and wild animal species that frequent the peridomiciliary area. Associations of household tungiasis were tests with household and environmental variables using regression methods. Results The study included 319 households. Of these, 41 (12.85%) were found to have at least one person who had signs of tungiasis. There were 295 (92.48%) households that possessed at least one species of domesticated animal. It was reported that wildlife regularly come into the vicinity of the home 90.59% of households. Presence of dogs around the home (OR 3.85; 95% CI 1.84; 8.11) and proximity to the park were associated with increased risk for tungiasis infestation in humans in a multivariate regression model. Conclusions Human tungiasis is a complex disease associated with domesticated and wild animals. Canines in particular appear to be important determinants of household level risk.
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Affiliation(s)
- Peter S Larson
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) project, Kenya, Nagasaki, Nagasaki, Japan. .,University of Michigan School of Natural Resources and Environment, Ann Arbor, MI, USA.
| | - Masanobu Ono
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) project, Kenya, Nagasaki, Nagasaki, Japan
| | - Mwatasa Changoma
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) project, Kenya, Nagasaki, Nagasaki, Japan.,Chemi Chemi, Kwale, Kenya
| | - Kensuke Goto
- Division of Health and Safety Sciences Education, Osaka Kyoiku University, Osaka, Japan
| | - Satoshi Kaneko
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) project, Kenya, Nagasaki, Nagasaki, Japan
| | - Kazuhiko Moji
- Nagasaki University School of Tropical Medicine and Global Health (TMGH), Nagasaki, Japan
| | - Noboru Minakawa
- Nagasaki University Institute of Tropical Medicine-Kenya Medical Research Institute (NUITM-KEMRI) project, Kenya, Nagasaki, Nagasaki, Japan
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Kaneko S, Ito K, Yuki S, Harada K, Yagisawa M, Sawada K, Ishiguro A, Muto O, Hatanaka K, Okuda H, Sato A, Sasaki Y, Nakamura M, Sasaki T, Tsuji Y, Ando T, Kato K, Wakabayashi T, Kotaka M, Takahashi Y, Sakata Y, Komatsu Y. P-81 HGCSG1901: A retrospective cohort study evaluating the safety and efficacy of S-1 and irinotecan plus bevacizumab in patients with metastatic colorectal cancer: Analysis of second-line treatment. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.136] [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: 10/20/2022] Open
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Fukuzumi R, Buerkle M, Li Y, Kaneko S, Li P, Kobayashi S, Fujii S, Kiguchi M, Nakamura H, Tsukagoshi K, Nishino T. Water Splitting Induced by Visible Light at a Copper-Based Single-Molecule Junction. Small 2021; 17:e2008109. [PMID: 34089231 DOI: 10.1002/smll.202008109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 04/19/2021] [Indexed: 06/12/2023]
Abstract
Water splitting is an essential process for converting light energy into easily storable energy in the form of hydrogen. As environmentally preferable catalysts, Cu-based materials have attracted attention as water-splitting catalysts. To enhance the efficiency of water splitting, a reaction process should be developed. Single-molecule junctions (SMJs) are attractive structures for developing these reactions because the molecule electronic state is significantly modulated, and characteristic electromagnetic effects can be expected. Here, water splitting is induced at Cu-based SMJ and the produced hydrogen is characterized at a single-molecule scale by employing electron transport measurements. After visible light irradiation, the conductance states originate from Cu/hydrogen molecule/Cu junctions, while before irradiation, only Cu/water molecule/Cu junctions were observed. The vibration spectra obtained from inelastic electron tunneling spectroscopy combined with the first-principles calculations reveal that the water molecule trapped between the Cu electrodes is decomposed and that hydrogen is produced. Time-dependent and wavelength-dependent measurements show that localized-surface plasmon decomposes the water molecule in the vicinity of the junction. These findings indicate the potential ability of Cu-based materials for photocatalysis.
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Affiliation(s)
- Risa Fukuzumi
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Marius Buerkle
- CD-FMat, National Institute of Advanced Industrial Science and Technology (AIST), Central 2, Umezono 1-1-1, Tsukuba, Ibaraki, 305-8568, Japan
| | - Yu Li
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Satoshi Kaneko
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Peihui Li
- Institute of Modern Optics, Nankai University, 94 Weijin Road, Tianjin, 300350, P. R. China
| | - Shuji Kobayashi
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Shintaro Fujii
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Manabu Kiguchi
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Hisao Nakamura
- CD-FMat, National Institute of Advanced Industrial Science and Technology (AIST), Central 2, Umezono 1-1-1, Tsukuba, Ibaraki, 305-8568, Japan
| | - Kazuhito Tsukagoshi
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Tomoaki Nishino
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
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Numair T, Harrell DT, Huy NT, Nishimoto F, Muthiani Y, Nzou SM, Lasaphonh A, Palama K, Pongvongsa T, Moji K, Hirayama K, Kaneko S. Barriers to the Digitization of Health Information: A Qualitative and Quantitative Study in Kenya and Lao PDR Using a Cloud-Based Maternal and Child Registration System. Int J Environ Res Public Health 2021; 18:ijerph18126196. [PMID: 34201107 PMCID: PMC8228682 DOI: 10.3390/ijerph18126196] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/29/2021] [Accepted: 06/04/2021] [Indexed: 12/23/2022]
Abstract
Digitalization of health information can assist patient information management and improve health services even in low middle-income countries. We have implemented a mother and child health registration system in the study areas of Kenya and Lao PDR to evaluate barriers to digitalization. We conducted in-depth interviews with 20 healthcare workers (HCWs) who used the system and analyzed it qualitatively with thematic framework analysis. Quantitatively, we analyzed the quality of recorded data according to missing information by the logistic regression analysis. The qualitative analysis identified six themes related to digitalization: satisfaction with the system, mothers’ resistance, need for training, double work, working environment, and other resources. The quantitative analysis showed that data entry errors improved around 10% to 80% based on odds ratios in subsequent quarters compared to first quarter periods. The number of registration numbers was not significantly related to the data quality, but the motivation, including financial incentives among HCWs, was related to the registration behavior. Considering both analysis results, workload and motivation to maintain high performance were significant obstacles to implementing a digital health system. We recommend enhancing the scope and focus on human needs and satisfaction as a significant factor for digital system durability and sustainability.
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Affiliation(s)
- Tarek Numair
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan;
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan;
| | - Daniel Toshio Harrell
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan;
- Dell Medical School, The University of Texas in Austin, Austin, TX 78712, USA
| | - Nguyen Tien Huy
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki 852-8523, Japan; (N.T.H.); (F.N.); (K.M.)
| | - Futoshi Nishimoto
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki 852-8523, Japan; (N.T.H.); (F.N.); (K.M.)
| | - Yvonne Muthiani
- Nairobi Research Station, Nagasaki University-Institute of Tropical Medicine—Kenya Medical Research Institute (NUITM-KEMRI) Project, Nairobi 19993-00202, Kenya; (Y.M.); (S.M.N.)
- Health Sciences Unit, Faculty of Social Sciences, Tampere University, 33014 Tampere, Finland
| | - Samson Muuo Nzou
- Nairobi Research Station, Nagasaki University-Institute of Tropical Medicine—Kenya Medical Research Institute (NUITM-KEMRI) Project, Nairobi 19993-00202, Kenya; (Y.M.); (S.M.N.)
- Centre for Microbiology Research, Kenya Medical Research Institute (KEMRI), Nairobi 54840-00200, Kenya
| | - Angkhana Lasaphonh
- Savannakhet Provincial Health Department, Savannakhet 13000, Laos; (A.L.); (K.P.); (T.P.)
| | - Khomsonerasinh Palama
- Savannakhet Provincial Health Department, Savannakhet 13000, Laos; (A.L.); (K.P.); (T.P.)
| | - Tiengkham Pongvongsa
- Savannakhet Provincial Health Department, Savannakhet 13000, Laos; (A.L.); (K.P.); (T.P.)
| | - Kazuhiko Moji
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki 852-8523, Japan; (N.T.H.); (F.N.); (K.M.)
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan;
| | - Satoshi Kaneko
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan;
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan;
- Nairobi Research Station, Nagasaki University-Institute of Tropical Medicine—Kenya Medical Research Institute (NUITM-KEMRI) Project, Nairobi 19993-00202, Kenya; (Y.M.); (S.M.N.)
- Correspondence: ; Tel.: +81-95-819-7866
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Zhang L, Kaneko S, Fujii S, Kiguchi M, Nishino T. Single-molecule determination of chemical equilibrium of DNA intercalation by electrical conductance. Chem Commun (Camb) 2021; 57:4380-4383. [PMID: 33949386 DOI: 10.1039/d0cc08348h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We investigated a single-molecule reaction of DNA intercalation as an example of a bimolecular association reaction. Single-molecule conductance values of the product and reactant molecules adsorbed on an Au surface were measured to identify and quantify these molecules. The binding isotherm was constructed, and the association constant of the reaction was determined on a single-molecule basis.
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Affiliation(s)
- Lu Zhang
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
| | - Satoshi Kaneko
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
| | - Shintaro Fujii
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
| | - Manabu Kiguchi
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
| | - Tomoaki Nishino
- Department of Chemistry, School of Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
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Tanaka M, Kildemoes AO, Chadeka EA, Cheruiyot BN, Sassa M, Moriyasu T, Nakamura R, Kikuchi M, Fujii Y, de Dood CJ, Corstjens PLAM, Kaneko S, Maruyama H, Njenga SM, de Vrueh R, Hokke CH, Hamano S. Potential of antibody test using Schistosoma mansoni recombinant serpin and RP26 to detect light-intensity infections in endemic areas. Parasitol Int 2021; 83:102346. [PMID: 33857597 DOI: 10.1016/j.parint.2021.102346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/25/2020] [Revised: 03/31/2021] [Accepted: 04/08/2021] [Indexed: 11/24/2022]
Abstract
Schistosomiasis remains a worldwide public health problem, especially in sub-Saharan Africa. The World Health Organization targets the goal for its elimination as a public health problem in the 2030 Neglected Tropical Diseases (NTDs) Roadmap. Concerted action and agile responses to challenges will be necessary to achieve the targets. Better diagnostic tests can accelerate progress towards the elimination by monitoring disease trends and evaluating the effectiveness of interventions; however, current examinations such as Kato-Katz technique are of limited power to detect light-intensity infections. The point-of-care circulating cathodic antigen (POC-CCA) test shows a higher sensitivity compared to the reference standard, Kato-Katz technique, but it still lacks sufficient sensitivity with low infection intensity. In this study, we examined antibody reactions against recombinant protein antigens; Schistosoma mansoni serine protease-inhibitor (SmSerpin) and RP26, by enzyme-linked immunosorbent assay (ELISA) in plasma samples with light-intensity infection. The sensitivity using the cocktail antigen of recombinant SmSerpin and RP26 showed 83.7%. The sensitivity using S. mansoni soluble egg antigen (SmSEA) was 90.8%, but it showed poor specificity (29.7%), while the cocktail antigen presented improved specificity (61.4%). We conclude that antibody detection to the SmSerpin and RP26 protein antigens is effective to detect S. mansoni light-intensity infections. Our study indicates the potential of detecting antibody against recombinant protein antigens to monitor the transmission of schistosomiasis in low endemicity contexts.
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Affiliation(s)
- Mio Tanaka
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Anna O Kildemoes
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Evans Asena Chadeka
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Nagasaki University, Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Benard Ngetich Cheruiyot
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Nagasaki University, Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Miho Sassa
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Taeko Moriyasu
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Nagasaki University, Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya; Department of Eco-Epidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Risa Nakamura
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Mihoko Kikuchi
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Yoshito Fujii
- Department of Medical Technology, Sanyo Women's College, Hatsukaichi, Japan
| | - Claudia J de Dood
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Paul L A M Corstjens
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - Satoshi Kaneko
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Nagasaki University, Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya; Department of Eco-Epidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Haruhiko Maruyama
- Division of Parasitology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Sammy M Njenga
- Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | | | - Cornelis H Hokke
- Department of Parasitology, Leiden University Medical Center, Leiden, the Netherlands
| | - Shinjiro Hamano
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan; Nagasaki University, Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya.
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Fukuda H, Hayashi Y, Toda K, Kaneko S, Wagaiyu E. Perceived general health in relation to oral health status in a rural Kenyan elderly population. BMC Oral Health 2021; 21:154. [PMID: 33761927 PMCID: PMC7989241 DOI: 10.1186/s12903-021-01525-z] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/16/2021] [Indexed: 12/02/2022] Open
Abstract
Background This study aimed to determine the present oral health status of the rural Kenyan elderly population and to investigate whether oral health status is associated with the perceived general health. Methods A total of 131 individuals aged 65 years and over in Mbita Constituency, Homa Bay County in Kenya were randomly selected and visited at home. The home visit study, which was conducted from 2014 to 2016, included oral examination by a dentist and administration of a self-reporting questionnaire. The number of teeth present and functional tooth unit (FTU) points were calculated using the dental chart. Perceived general health, subjective masticatory ability, and self-reported periodontal symptoms were collected using a questionnaire sheet. Fisher’s exact test and nonparametric test were used to determine the difference in percentage and means. The odds ratio of good general health based on the participants’ masticatory satisfaction was calculated by logistic analysis. Results Satisfactory mastication was dependent on the number of teeth present, FTU points, and self-reported “gum bleeding” and “tooth mobility”. Furthermore, satisfactory mastication was associated with perceived general health status independent of sex and age. The adjusted odds ratio of good perceived general health was 2.29 (95% confidence interval 1.05–4.99) for participants who had the subjective masticatory ability. Conclusion Among the Kenyan elderly population, satisfactory mastication was related to the number of teeth present, FTU points, and self-reported periodontal symptoms. Furthermore, satisfactory mastication was associated with perceived general health status independently.
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Affiliation(s)
- Hideki Fukuda
- National Institute of Public Health, 2-3-6 Minami, Wako City, Saitama Prefecture, 351-0197, Japan.
| | - Yoshihiko Hayashi
- Graduated School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki Prefecture, 852-8588, Japan
| | - Kazuo Toda
- Graduated School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki City, Nagasaki Prefecture, 852-8588, Japan
| | - Satoshi Kaneko
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki City, Nagasaki Prefecture, 852-8523, Japan
| | - Evelyn Wagaiyu
- School of Dental Sciences, University of Nairobi, P.O. Box 30197-00100, Nairobi, Kenya
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Itani K, Nakamura M, Wate R, Kaneko S, Fujita K, Iida S, Morise S, Murakami A, Kunieda T, Takenouchi N, Yakushiji Y, Kusaka H. Efficacy and safety of tacrolimus as long-term monotherapy for myasthenia gravis. Neuromuscul Disord 2021; 31:512-518. [PMID: 33903022 DOI: 10.1016/j.nmd.2021.02.010] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 01/28/2021] [Accepted: 02/10/2021] [Indexed: 10/22/2022]
Abstract
The objective was to evaluate the long-term efficacy and safety of tacrolimus monotherapy in myasthenia gravis (MG) patients. Immunosuppressive drug-naïve MG patients were administered tacrolimus, followed by thymectomy in some of the cases according to the clinical guideline for MG. Additional aggressive immunosuppressive therapies were allowed if the patients without thymectomy did not achieve minimal manifestation (MM) or better status after 3 weeks of tacrolimus administration or in the thymectomized patients by 1-2 weeks after the operation (i.e., 1st evaluation). Of all 14 patients included in this study, 8 of them (57%) achieved MM or better status at the 1st evaluation, and the remaining 6 (43%), who had failed to gain MM or better status at the 1st evaluation, also achieved MM or better status with 1 course of aggressive immunosuppressive therapy. The quantitative MG (QMG) scores, MG-Activities of Daily Living (ADL) scales, and anti-acetylcholine receptor (AchR) antibody levels were significantly decreased at 6 months and maintained thereafter. At the end of the follow-up period (41-70 months), all patients were in MM or better status. None of the patients experienced severe adverse effects. Our small preliminary study indicates that long-term tacrolimus monotherapy is possibly effective and safe for MG patients.
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Affiliation(s)
- Kumi Itani
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Masataka Nakamura
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan.
| | - Reika Wate
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Satoshi Kaneko
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Kengo Fujita
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Shin Iida
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Satoshi Morise
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Aya Murakami
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Takenobu Kunieda
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Norihiro Takenouchi
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan; Department of Microbiology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Yusuke Yakushiji
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
| | - Hirofumi Kusaka
- Department of Neurology, Kansai Medical University, 2-5-1, Shinmachi, Hirakata, Osaka 5731010, Japan
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Fujimoto Z, Kishine N, Teramoto K, Tsutsui S, Kaneko S. Structure-based substrate specificity analysis of GH11 xylanase from Streptomyces olivaceoviridis E-86. Appl Microbiol Biotechnol 2021; 105:1943-1952. [PMID: 33564921 DOI: 10.1007/s00253-021-11098-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 11/08/2020] [Revised: 12/14/2020] [Accepted: 01/03/2021] [Indexed: 11/26/2022]
Abstract
Although many xylanases have been studied, many of the characteristics of xylanases toward branches in xylan remain unclear. In this study, the substrate specificity of a GH11 xylanase from Streptomyces olivaceoviridis E-86 (SoXyn11B) was elucidated based on its three-dimensional structure. Subsite mapping suggests that SoXyn11B has seven subsites (four subsites on the - side and three subsites on the + side), and it is one longer than the GH10 xylanase from S. olivaceoviridis (SoXyn10A). SoXyn11B has no affinity for the subsites at either end of the scissile glycosidic bond, and the sugar-binding energy at subsite - 2 was the highest, followed by subsite + 2. These properties were very similar to those of SoXyn10A. In contrast, SoXyn11B produced different branched oligosaccharides from bagasse compared with those of SoXyn10A. These branched oligosaccharides were identified as O-β-D-xylopyranosyl-(1→4)-[O-α-L-arabinofuranosyl-(1→3)]-O-β-D-xylopyranosyl-(1→4)-β-D-xylopyranosyl-(1→4)-β-D-xylopyranose (Ara3Xyl4) and O-β-D-xylopyranosyl-(1→4)-[O-4-O-methyl-α-D-glucuronopyranosyl-(l→2)]-β-D-xylopyranosyl-(1→4)-β-D-xylopyranosyl-(1→4)-β-D-xylopyranose (MeGlcA3Xyl4) by nuclear magnetic resonance (NMR) and electrospray ionization mass spectrometry (ESI-MS) and confirmed by crystal structure analysis of SoXyn11B in complex with these branched xylooligosaccharides. SoXyn11B has a β-jerryroll fold structure, and the catalytic cleft is located on the inner β-sheet of the fold. The ligand-binding structures revealed seven subsites of SoXyn11B. The 2- and 3-hydroxy groups of xylose at the subsites + 3, + 2, and - 3 face outwards, and an arabinose or a glucuronic acid side chain can be linked to these positions. These subsite structures appear to cause the limited substrate specificity of SoXyn11B for branched xylooligosaccharides. KEY POINTS: • Crystal structure of family 11 β-xylanase from Streptomyces olivaceoviridis was determined. • Topology of substrate-binding cleft of family 11 β-xylanase from Streptomyces olivaceoviridis was characterized. • Mode of action of family 11 β-xylanase from Streptomyces olivaceoviridis for substitutions in xylan was elucidated.
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Affiliation(s)
- Zui Fujimoto
- Advanced Analysis Center, National Agriculture and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, 305-8518, Japan
| | - Naomi Kishine
- Advanced Analysis Center, National Agriculture and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, 305-8518, Japan
| | - Koji Teramoto
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Sosyu Tsutsui
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
- The United Graduate School of Agricultural Sciences, Kagoshima University, Korimoto, Kagoshima, 890-0065, Japan
| | - Satoshi Kaneko
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan.
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Teramoto K, Tsutsui S, Sato T, Fujimoto Z, Kaneko S. Substrate Specificities of GH8, GH39, and GH52 β-xylosidases from Bacillus halodurans C-125 Toward Substituted Xylooligosaccharides. Appl Biochem Biotechnol 2021; 193:1042-1055. [PMID: 33394289 DOI: 10.1007/s12010-020-03451-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/08/2020] [Indexed: 11/30/2022]
Abstract
Substrate specificities of glycoside hydrolase families 8 (Rex), 39 (BhXyl39), and 52 (BhXyl52) β-xylosidases from Bacillus halodurans C-125 were investigated. BhXyl39 hydrolyzed xylotriose most efficiently among the linear xylooligosaccharides. The activity decreased in the order of xylohexaose > xylopentaose > xylotetraose and it had little effect on xylobiose. In contrast, BhXyl52 hydrolyzed xylobiose and xylotriose most efficiently, and its activity decreased when the main chain became longer as follows: xylotetraose > xylopentaose > xylohexaose. Rex produced O-β-D-xylopyranosyl-(1 → 4)-[O-α-L-arabinofuranosyl-(1 → 3)]-O-β-D-xylopyranosyl-(1 → 4)-β-D-xylopyranose (Ara2Xyl3) and O-β-D-xylopyranosyl-(1 → 4)-[O-4-O-methyl-α-D-glucuronopyranosyl-(l → 2)]-β-D-xylopyranosyl-(1 → 4)-β-D-xylopyranose (MeGlcA2Xyl3), which lost a xylose residue from the reducing end of O-β-D-xylopyranosyl-(1 → 4)-[O-α-L-arabinofuranosyl-(1 → 3)]-O-β-D-xylopyranosyl-(1 → 4)-β-D-xylopyranosyl-(1 → 4)-β-D-xylopyranose (Ara3Xyl4) and O-β-D-xylopyranosyl-(1 → 4)-[O-4-O-methyl-α-D-glucuronopyranosyl-(1 → 2)]-β-D-xylopyranosyl-(1 → 4)-β-D-xylopyranosyl-(1 → 4)-β-D-xylopyranose (MeGlcA3Xyl4). It was considered that there is no space to accommodate side chains at subsite -1. BhXyl39 rapidly hydrolyzes the non-reducing-end xylose linkages of MeGlcA3Xyl4, while the arabinose branch does not significantly affect the enzyme activity because it degrades Ara3Xyl4 as rapidly as unmodified xylotetraose. The model structure suggested that BhXyl39 enhanced the activity for MeGlcA3Xyl4 by forming a hydrogen bond between glucuronic acid and Lys265. BhXyl52 did not hydrolyze Ara3Xyl4 and MeGlcA3Xyl4 because it has a narrow substrate binding pocket and 2- and 3-hydroxyl groups of xylose at subsite +1 hydrogen bond to the enzyme.
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Affiliation(s)
- Koji Teramoto
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Sosyu Tsutsui
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, Korimoto, Kagoshima, 890-0065, Japan
| | - Tomoko Sato
- Advanced Analysis Center, National Agriculture and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, 305-8602, Japan
| | - Zui Fujimoto
- Advanced Analysis Center, National Agriculture and Food Research Organization (NARO), 2-1-2 Kannondai, Tsukuba, 305-8602, Japan
| | - Satoshi Kaneko
- Department of Subtropical Biochemistry and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan. .,The United Graduate School of Agricultural Sciences, Kagoshima University, Korimoto, Kagoshima, 890-0065, Japan.
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Miyata S, Iwamoto K, Banno M, Eguchi J, Kaneko S, Noda A, Ozaki N. Performance of an ambulatory electroencephalogram sleep monitor in patients with psychiatric disorders. J Sleep Res 2020; 30:e13273. [PMID: 33372341 DOI: 10.1111/jsr.13273] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/13/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/01/2022]
Abstract
Key clinical symptoms observed among individuals with psychiatric disorders include difficulty falling asleep or maintaining sleep, poor sleep quality and nightmares. Those suffering from sleep disorders often present with symptoms of discontent with regard to sleep quality, timing and quantity, and these symptoms have an adverse impact on function and quality of life. A minimally invasive technique would be preferable in patients with psychiatric disorders, who tend to be sensitive to environmental change. Accordingly, we evaluated the performance of Zmachine Insight Plus, an ambulatory electroencephalography sleep monitor, in patients with psychiatric disorders. One hundred and three patients undergoing polysomnography were enrolled in this study. Zmachine Insight Plus was performed simultaneously with polysomnography. Total sleep time, sleep efficiency, wake after sleep onset, rapid eye movement (REM) sleep, light sleep (stages N1 and N2) and deep sleep (stage N3) were assessed. Total sleep time, sleep efficiency, wake after sleep onset, REM sleep duration and non-REM sleep duration of Zmachine Insight Plus showed a significant correlation with those of polysomnography. Lower sleep efficiency and increased frequency of waking after sleep onset, the arousal index and the apnea-hypopnea index on polysomnography were significantly associated with the difference in sleep parameters between the two methods. Among patients with psychiatric disorders who are sensitive to environmental change, Zmachine Insight Plus would be a useful technique to objectively evaluate sleep quality.
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Affiliation(s)
- Seiko Miyata
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kunihiro Iwamoto
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahiro Banno
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | | | - Akiko Noda
- Department of Biomedical Sciences, Chubu University Graduate School of Life and Health Sciences, Kasugai, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
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