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Matsuzaki K, Suzuki H, Kikuchi M, Koike K, Komatsu H, Takahashi K, Narita I, Okada H. Current treatment status of IgA nephropathy in Japan: a questionnaire survey. Clin Exp Nephrol 2023; 27:1032-1041. [PMID: 37646957 PMCID: PMC10654181 DOI: 10.1007/s10157-023-02396-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/11/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND In 2020, the Committee of Clinical Practical Guideline for IgA Nephropathy (IgAN) revised the clinical practice guidelines. Herein, we conducted a questionnaire survey to assess the potential discrepancies between clinical practice guidelines and real-world practice in Japan. METHODS A web-based survey of members of the Japanese Society of Nephrology was conducted between November 15 and December 28, 2021. RESULTS A total of 217 members (internal physicians: 203, pediatricians: 14) responded to the questionnaire. Of these respondents, 94.0% answered that the clinical practice guidelines were referred to "always" or "often." Approximately 66.4% respondents answered that histological grade (H-Grade) derived from the "Clinical Guidelines for IgA nephropathy in Japan, 3rd version" and the "Oxford classification" were used for pathological classification. Moreover, 73.7% respondents answered that the risk grade (R-grade) derived from the "Clinical Guidelines for IgA nephropathy in Japan, 3rd version" was referred to for risk stratification. The prescription rate of renin-angiotensin system blockers increased based on urinary protein levels (> 1.0 g/day: 88.6%, 0.5-1.0 g/day: 71.0%, < 0.5 g/day: 25.0%). Similarly, the prescription rate of corticosteroids increased according to proteinuria levels (> 1.0 g/day: 77.8%, 0.5-1.0 g/day: 52.8%, < 0.5 g/day: 11.9%). The respondents emphasized on hematuria when using corticosteroids. In cases of hematuria, the indication rate for corticosteroids was higher than in those without hematuria, even if the urinary protein level was 1 g/gCr or less. Few severe infectious diseases or serious deterioration in glycemic control were reported during corticosteroid use. CONCLUSION Our questionnaire survey revealed real-world aspects of IgAN treatment in Japan.
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Affiliation(s)
- K Matsuzaki
- Department of Public Health, Kitasato University School of Medicine, Kanagawa, Japan
| | - H Suzuki
- Department of Nephrology, Juntendo University Urayasu Hospital, Chiba, Japan.
| | - M Kikuchi
- Department of Nephrology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - K Koike
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - H Komatsu
- Center for Medical Education and Career Development, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - K Takahashi
- Department of Biomedical Molecular Sciences, Fujita Health University School of Medicine, Aichi, Japan
| | - I Narita
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - H Okada
- Department of Nephrology, Saitama Medical University, Saitama, Japan
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Kikuchi M, Ishihara S, Kohno M. Correction to: Politics of COVID-19 vaccination in Japan: how governing incumbents' representation affected regional rollout variation. BMC Public Health 2023; 23:781. [PMID: 37118786 PMCID: PMC10141814 DOI: 10.1186/s12889-023-15744-2] [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: 04/30/2023] Open
Affiliation(s)
- M Kikuchi
- Department of Political Science, Washington University in St. Louis, Saint Louis, MO, USA.
| | - S Ishihara
- Department of Global Political Economy, Waseda University, Tokyo, Japan
| | - M Kohno
- Faculty of Political Science and Economics, Waseda University, Tokyo, Japan
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Kikuchi M, Ishihara S, Kohno M. Politics of COVID-19 vaccination in Japan: how governing incumbents' representation affected regional rollout variation. BMC Public Health 2023; 23:515. [PMID: 36932360 PMCID: PMC10021041 DOI: 10.1186/s12889-023-15376-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 03/06/2023] [Indexed: 03/19/2023] Open
Abstract
BACKGROUND Despite initial delay, Japan's COVID-19 vaccination accelerated remarkably from May to September 2021 under the leadership of Prime Minister Yoshihide Suga. His "campaign" for vaccination, however, did not yield uniform results nationwide. METHODS To highlight political determinants for the regional variation, we employ ordinary least squares regression analyses to investigate how the share/presence of incumbent politicians belonging to the governing parties, the Liberal Democratic Party and Komei Party, influenced the varying progress of rollouts across prefectures as well as across cities/towns/villages. The data on the vaccination rate for all 47 prefectures was obtained from Government Chief Information Officer (CIO)'s Portal, Japan (GCPJ) approximately one month prior to the anticipated general election, the national election for the more important House of Representatives of Japan's bicameral parliament (Diet). The data for lower administrative units, though its availability was limited to only three prefectures, was obtained from the respective governments of Kagawa and Ehime and from a local newspaper in Gifu. RESULTS The findings reveal that at both prefectural and sub-prefectural administrative levels, the share/presence of the governing parties' representation in the national parliament had a positive and statistically significant effect on the region's vaccination progress, after controlling for the local proliferation of COVID-19 and demographic characteristics. CONCLUSION Our findings contribute insights into the understudied area of the contemporary COVID-19 health environment, namely how the political dynamics of democracy affect the pattern of vaccine dissemination in Japan. TRIAL REGISTRATION Not applicable.
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Affiliation(s)
- M Kikuchi
- Department of Political Science, Washington University in St. Louis, MO , Saint Louis, USA.
| | - S Ishihara
- Department of Global Political Economy, Waseda University, Tokyo, Japan
| | - M Kohno
- Faculty of Political Science and Economics, Waseda University, Tokyo, Japan
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Kikuchi M, Aizawa N, Furuya T, Tanno K. The efficacy of general anesthesia during pulmonary vein isolation compared with conscious sedation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Catheter ablation (RFA) is significantly more effective in terms of arrhythmia recurrence rate than antiarrhythmic medication. For the duration of the procedure, the patient needs to remain motionless on the operation table. General anesthesia (GA) is widely used during atrial fibrillation (AF) ablation in all over the world, however RFA of AF is performed under conscious sedation (CS) in the most centers in Japan.
It remains controversial whether cardiac anesthesiologists are best suited to manage anesthesia in the electrophysiology lab.
Objective
The aim of this study was to report the efficacy and safety of GA during AF ablation.
Methods
297 patients (67.3±11.7 years, 208 men, 128 paroxysmal, mean follow up 443 days±306) with AF undergoing RFA in our department from January 2018 to December 2021 were retrospectively analyzed. 113 assigned to the GA group, 184 patients to the CS group.
The primary efficacy end point was radiofrequency time, ablation index, force time integral. The secondary end points defined AF recurrence and the complications.
Result
There was no difference in the baseline characteristics between the two groups. There was no difference between groups in AF recurrence (22.1% vs. 14.1%, P=0.103) and complications.However, Patients in GA had shorter radiofrequency times (66.9±3.7 minute vs 79.0±2.9 minutes P=0.01)Ablation index (376±18.6 vs 371±22.6 P<0.05), Force time integral (136±22.3 vs 111.4±45.3).
Conclusion
General anesthesia is superior to conscious sedation with shorter radiofrequency times and higher than Force time integral, ablation index. Moreover, it is not inferior in regard to arrhythmia recurrence or complication rates of catheter ablation of atrial fibrillation.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Kikuchi
- Showa University Koto-Toyosu Hospital , Tokyo , Japan
| | - N Aizawa
- Showa University Koto-Toyosu Hospital , Tokyo , Japan
| | - T Furuya
- Showa University Koto-Toyosu Hospital , Tokyo , Japan
| | - K Tanno
- Showa University Koto-Toyosu Hospital , Tokyo , Japan
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Tabios IKB, Sato MO, Tantengco OAG, Fornillos RJC, Kirinoki M, Sato M, Rojo RD, Fontanilla IKC, Chigusa Y, Medina PMB, Kikuchi M, Leonardo LR. Diagnostic Performance of Parasitological, Immunological, Molecular, and Ultrasonographic Tests in Diagnosing Intestinal Schistosomiasis in Fieldworkers From Endemic Municipalities in the Philippines. Front Immunol 2022; 13:899311. [PMID: 35774791 PMCID: PMC9237846 DOI: 10.3389/fimmu.2022.899311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
Schistosomiasis remains to ha/ve a significant public health impact in the Philippines. The Kato-Katz (K-K) technique is the reference standard and most used technique for definitive diagnosis of intestinal schistosomiasis for control programs in endemic regions. However, this has a very low sensitivity when applied in areas of low endemicity and patients with light infection. Hence, this study determined the diagnostic performance of immunological, molecular, parasitological, and ultrasonographic tests in diagnosing intestinal schistosomiasis in endemic municipalities in the Philippines. We performed a community-based cross-sectional study to determine the positivity of schistosomiasis in Leyte, Philippines. The diagnostic performance of five different detection techniques: (1) three stool K-K with duplicate smears; (2) soluble egg antigen IgG ELISA; (3) urine point-of-care circulating cathodic antigen (POC-CCA) test; (4) detection of Schistosoma japonicum circulating DNA (SjcDNA) in serum and urine samples; (5) focused abdominal ultrasound (US), were also obtained in this study. Multiple stool examinations enhanced the sensitivity of K-K from 26.2% (95% CI [16.4, 38.8]) with single stool to 53.8% (95% CI [41.1, 66.1]) and 69.2% (95% CI [56.4, 80.0]) with two and three stools from consecutive days, respectively. Among the SjcDNA nucleic acid amplification test (NAAT)-based detection assays, loop-mediated isothermal amplification (LAMP) PCR using sera had the highest sensitivity at 92.3% (95% CI [82.2, 97.1]) with LAMP consistently identifying more positive cases in both serum and urine samples. This study showed that single stool K-K, which remains the only diagnostic test available in most endemic areas in the Philippines, had low sensitivity and failed to identify most patients with light infection. SjcDNA detection assay and POC-CCA urine test were more sensitive than stool microscopy in detecting schistosomiasis. On the other hand, US was less sensitive than the widely utilized K-K technique in diagnosing schistosomiasis. This study emphasizes the need to revisit the use of single stool K-K in the surveillance and case detection of schistosomiasis in endemic areas of the Philippines. The availability of advanced and more sensitive diagnostic tests will help better control, prevent, and eliminate schistosomiasis in the country.
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Affiliation(s)
- Ian Kim B. Tabios
- Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
- College of Medicine, University of the Philippines Manila, Manila, Philippines
- Laboratory of Tropical Medicine and Parasitology, Dokkyo Medical University, Tochigi, Japan
- *Correspondence: Marcello Otake Sato, ; Ian Kim B. Tabios,
| | - Marcello Otake Sato
- Laboratory of Tropical Medicine and Parasitology, Dokkyo Medical University, Tochigi, Japan
- *Correspondence: Marcello Otake Sato, ; Ian Kim B. Tabios,
| | | | - Raffy Jay C. Fornillos
- Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
| | - Masashi Kirinoki
- Laboratory of Tropical Medicine and Parasitology, Dokkyo Medical University, Tochigi, Japan
| | - Megumi Sato
- Graduate School of Health Sciences, Niigata University, Niigata City, Japan
| | - Raniv D. Rojo
- College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Ian Kendrich C. Fontanilla
- Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
| | - Yuichi Chigusa
- Center for International Cooperation, Dokkyo Medical University, Tochigi, Japan
| | - Paul Mark B. Medina
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Mihoko Kikuchi
- Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Lydia R. Leonardo
- Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
- Office of Research Coordination, University of the East, Manila, Philippines
- College of Arts and Sciences, University of the Philippines Manila, Manila, Philippines
- University of the East Ramon Magsaysay Graduate School, Quezon City, Philippines
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Nguyen TP, Kurosawa T, Kikuchi M, Yoschenko V, Tsukada H. Estimation of rooting depth of 137Cs uptake by plants. J Environ Radioact 2022; 246:106847. [PMID: 35219124 DOI: 10.1016/j.jenvrad.2022.106847] [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: 09/29/2021] [Revised: 02/08/2022] [Accepted: 02/17/2022] [Indexed: 06/14/2023]
Abstract
Understanding the soil-to-plant transfer process of 137Cs is essential for predicting the contamination levels of plants in contaminated areas. The rooting depth is considered one of the key factors explaining the difference in the activity concentration of 137Cs in different plant species. In this study, the distributions of 137Cs and 133Cs in soils and plants were investigated, and the plants' rooting depth of 137Cs uptake was estimated using the 137Cs/133Cs ratios in exchangeable fractions of soils and biological samples. The results showed that different plant species accumulate different levels of 137Cs and 133Cs. The 137Cs/133Cs ratios were fairly constant in plants of the same species. The average 137Cs/133Cs ratios in bamboo grasses and ferns were 0.015 ± 0.009 (n = 5) and 0.13 ± 0.04 Bq ng-1 (n = 10) in Yamakiya, respectively. The percentage of 137Cs in the exchangeable fraction of the uppermost soil layer was lower than that in the deeper soil layers. The activity concentrations of 137Cs in the soil profiles decreased sharply with depth, whereas the depth distributions of 133Cs were uniform. Therefore, the 137Cs/133Cs ratios were driven mainly by the 137Cs activity concentrations in soil. The plants' rooting depths of 137Cs uptake were estimated on the basis of the relationships between the averaged 137Cs/133Cs ratio in the soil layer and the 137Cs/133Cs ratio in the plant. The results indicate that the deeper-rooted species such as bamboo grasses have a lower accumulation of 137Cs than the superficial-rooting species such as ferns. The soil-to-plant transfer factors would be determined using rooting depth by calculating the averaged activity concentration of 137Cs within the estimated rooting depth.
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Affiliation(s)
- Thoa Phuong Nguyen
- Graduate School of Symbiotic Systems Science and Technology, Fukushima University, 1 Kanayagawa, Fukushima city, Fukushima prefecture, 960-1296, Japan; Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima city, Fukushima prefecture, 960-1296, Japan
| | - Takahide Kurosawa
- Faculty of Symbiotic Systems Science, Fukushima University, 1 Kanayagawa, Fukushima city, Fukushima prefecture, 960-1296, Japan
| | - Mihoko Kikuchi
- Graduate School of Symbiotic Systems Science and Technology, Fukushima University, 1 Kanayagawa, Fukushima city, Fukushima prefecture, 960-1296, Japan; Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima city, Fukushima prefecture, 960-1296, Japan
| | - Vasyl Yoschenko
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima city, Fukushima prefecture, 960-1296, Japan
| | - Hirofumi Tsukada
- Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima city, Fukushima prefecture, 960-1296, Japan.
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Wu Y, Kurosaka H, Wang Q, Inubushi T, Nakatsugawa K, Kikuchi M, Ohara H, Tsujimoto T, Natsuyama S, Shida Y, Sandell LL, Trainor PA, Yamashiro T. Retinoic Acid Deficiency Underlies the Etiology of Midfacial Defects. J Dent Res 2022; 101:686-694. [PMID: 35001679 DOI: 10.1177/00220345211062049] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 11/16/2022] Open
Abstract
Embryonic craniofacial development depends on the coordinated outgrowth and fusion of multiple facial primordia, which are populated with cranial neural crest cells and covered by the facial ectoderm. Any disturbance in these developmental events, their progenitor tissues, or signaling pathways can result in craniofacial deformities such as orofacial clefts, which are among the most common birth defects in humans. In the present study, we show that Rdh10 loss of function leads to a substantial reduction in retinoic acid (RA) signaling in the developing frontonasal process during early embryogenesis, which results in a variety of craniofacial anomalies, including midfacial cleft and ectopic chondrogenic nodules. Elevated apoptosis and perturbed cell proliferation in postmigratory cranial neural crest cells and a substantial reduction in Alx1 and Alx3 transcription in the developing frontonasal process were associated with midfacial cleft in Rdh10-deficient mice. More important, expanded Shh signaling in the ventral forebrain, as well as partial abrogation of midfacial defects in Rdh10 mutants via inhibition of Hh signaling, indicates that misregulation of Shh signaling underlies the pathogenesis of reduced RA signaling-associated midfacial defects. Taken together, these data illustrate the precise spatiotemporal function of Rdh10 and RA signaling during early embryogenesis and their importance in orchestrating molecular and cellular events essential for normal midfacial development.
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Affiliation(s)
- Y Wu
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - H Kurosaka
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - Q Wang
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - T Inubushi
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - K Nakatsugawa
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - M Kikuchi
- Department of Genome Informatics, Graduate School of Medicine, Osaka University, Suita, Japan
| | - H Ohara
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - T Tsujimoto
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - S Natsuyama
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - Y Shida
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - L L Sandell
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - P A Trainor
- Stowers Institute for Medical Research, Kansas City, MO, USA.,Department of Anatomy and Cell Biology, School of Medicine, University of Kansas, Kansas City, KS, USA
| | - T Yamashiro
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Japan
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Tozaki T, Ohnuma A, Kikuchi M, Ishige T, Kakoi H, Hirota K, Kusano K, Nagata S. Simulated validation of intron-less transgene detection using DELLY for gene-doping control in horse sports. Anim Genet 2021; 52:759-761. [PMID: 34339052 DOI: 10.1111/age.13127] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2021] [Indexed: 12/31/2022]
Abstract
Gene doping is prohibited in horseracing. In a previous study, we developed a method for non-targeted transgene detection using DELLY, which is based on split-read (SR) and paired-end (PE) algorithms to detect structural variants, on WGS data. In this study, we validated the detection sensitivity of DELLY using artificially generated sequence data of 12 target genes. With DELLY, at least one intron was detected as a deletion in eight targeted genes using the 150 bp PE read WGS data, whereas all targeted genes were detected by DELLY using the 100 bp PE read data. The detection sensitivity was higher in 100 bp PE reads than in 150 bp PE reads, despite a lower total sequence coverage, probably because of mismatch tolerance between the mapped reads and reference genome. In addition, it was observed that the average intron size detected by SR alone was 293 bp and that that detected by both SR and PE was 8924 bp. Thus, we showed that transgenes with various intron-exon structures could be detected using DELLY, suggesting its application in gene-doping control in horses.
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Affiliation(s)
- T Tozaki
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - A Ohnuma
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - M Kikuchi
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - T Ishige
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - H Kakoi
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - K Hirota
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - K Kusano
- Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato, Tokyo, 106-8401, Japan
| | - S Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, 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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10
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Hiraoka T, Cuong NC, Hamaguchi S, Kikuchi M, Katoh S, Anh LK, Anh NTH, Anh DD, Smith C, Maruyama H, Yoshida LM, Cuong DD, Thuy PT, Ariyoshi K. Meningitis patients with Angiostrongylus cantonensis may present without eosinophilia in the cerebrospinal fluid in northern Vietnam. PLoS Negl Trop Dis 2020; 14:e0008937. [PMID: 33351806 PMCID: PMC7810332 DOI: 10.1371/journal.pntd.0008937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/15/2021] [Accepted: 10/30/2020] [Indexed: 11/23/2022] Open
Abstract
Background Eosinophilic meningitis (EM) is a rare clinical syndrome caused by both infectious and noninfectious diseases. In tropical pacific countries, Angiostrongylus cantonensis is the most common cause. However, the EM definition varies in the literature, and its relation to parasitic meningitis (PM) remains unclear. Methodology/Principal findings Adult and adolescent patients of 13 years old or above with suspected central nervous system (CNS) infections with abnormal CSF findings were prospectively enrolled at a tertiary referral hospital in Hanoi, Vietnam from June 2012 to May 2014. Patients with EM or suspected PM (EM/PM) were defined by the presence of either ≥10% eosinophils or an absolute eosinophil cell counts of ≥10/mm3 in the CSF or blood eosinophilia (>16% of WBCs) without CSF eosinophils. In total 679 patients were enrolled: 7 (1.03%) had ≥10% CSF eosinophilia, 20 (2.95%) had ≥10/mm3 CSF eosinophilia, and 7 (1.03%) had >16% blood eosinophilia. The patients with ≥10% CSF eosinophilia were significantly younger (p = 0.017), had a lower body temperature (p = 0.036) than patients with ≥10/mm3 CSF eosinophilia among whom bacterial pathogens were detected in 72.2% (13/18) of those who were tested by culture and/or PCR. In contrast, the characteristics of the patients with >16% blood eosinophilia resembled those of patients with ≥10% CSF eosinophilia. We further conducted serological tests and real-time PCR to identify A. cantonensis. Serology or real-time PCR was positive in 3 (42.8%) patients with ≥10% CSF eosinophilia and 6 (85.7%) patients with >16% blood eosinophilia without CSF eosinophils but none of patients with ≥10/mm3 CSF eosinophilia. Conclusions The etiology of PM in northern Vietnam is A. cantonensis. The eosinophil percentage is a more reliable predictor of parasitic EM than absolute eosinophil count in the CSF. Patients with PM may present with a high percentage of eosinophils in the peripheral blood but not in the CSF. Eosinophilic meningitis (EM) is a rare meningitis accompanied by eosinophils in the CSF and caused by multiple etiologies. Angiostrongylus cantonensis, which is a rat lungworm parasite, is the most common cause in tropical Asia. Previous papers have defined EM as CSF eosinophils ≥10% or CSF eosinophils ≥10/mm3. However, the relationship of EM to parasitic meningitis (PM) remains unclear. This prospective study enrolled 679 patients with suspected CNS infection who were admitted to a tertiary referral hospital in Hanoi, Vietnam from June 2012 to May 2014. The characteristics of patients with ≥10% CSF eosinophilia resembled those of patients with >16% blood eosinophilia without CSF eosinophils, whereas those of patients with ≥10/mm3 CSF eosinophilia were comparable with those of patients with typical bacterial meningitis. Serology or real-time PCR for A. cantonensis was positive in 3 out of 7 patients with ≥10% CSF eosinophilia and 6 out of 7 patients with > 16% blood eosinophilia without CSF eosinophils but none of patients with ≥10/mm3 CSF eosinophilia. The percentage, in contrast to the absolute eosinophil count in CSF, is reliable for predicting parasitic EM. Patients with PM may present with eosinophilia in the peripheral blood but not in the CSF.
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Affiliation(s)
- Tomoko Hiraoka
- Department of Clinical Medicine, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Department of Clinical Tropical Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ngo Chi Cuong
- Department of Clinical Tropical Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Infectious Diseases, Bach Mai Hospital, Hanoi, Vietnam
| | - Sugihiro Hamaguchi
- Department of General Internal Medicine, Fukushima Medical University, Fukushima, Japan
| | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Shungo Katoh
- Department of Clinical Medicine, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Department of Clinical Tropical Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of General Internal Medicine, Nagasaki Rosai Hospital, Nagasaki, Japan
| | - Le Kim Anh
- Vietnam Research Station, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Hanoi, Vietnam
| | | | - Dang Duc Anh
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - Chris Smith
- Department of Global Health, School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
- Department of Clinical Research, London School of Hygiene and Tropical Medicine (LSHTM), London, United Kingdom
| | - Haruhiko Maruyama
- Department of Infectious Diseases, Division of Parasitology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Lay-Myint Yoshida
- Department of Clinical Tropical Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Pediatric Infectious Diseases, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Do Duy Cuong
- Department of Infectious Diseases, Bach Mai Hospital, Hanoi, Vietnam
| | - Pham Thanh Thuy
- Department of Infectious Diseases, Bach Mai Hospital, Hanoi, Vietnam
- Infection Prevention and Control, The Partnership for Health Advancement in Vietnam (HAIVN), Hanoi, Vietnam
| | - Koya Ariyoshi
- Department of Clinical Medicine, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Department of Global Health, School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
- * E-mail:
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11
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Onuki T, Shoji M, Kikuchi M, Asano T, Suzuki H, Tannno K, Shinke T. Clinical risk predictors for bradycardia, supraventricular tachycardia and epilepsy necessitating therapy in patients with unexplained syncope monitored by insertable cardiac monitor. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Insertable cardiac monitors (ICMs) allow for lengthy monitoring of cardiac rhythm and improve diagnostic yield in patients with unexplained syncope. In most cardiac syncope cases, sick sinus syndrome, atrioventricular block, and paroxysmal supraventricular tachycardia (SVT) are detected using ICMs. On the other hand, epileptic seizures are sometimes diagnosed as unexplained syncope because in these situations, the loss of consciousness is a similar manifestation. Thus, the population of patients with unexplained syncope monitored by ICMs includes epileptic patients. Clinical risk factors for bradycardia, SVT and epilepsy that necessitate therapy in patients with unexplained syncope are not well known. If these risks can be clarified, clinicians could provide more specific targeted monitoring.
Purpose
We aimed to identify these predictors.
Methods
We retrospectively reviewed medical records of consecutive patients who received ICMs to monitor unexplained syncope in three medical facilities. We performed Cox's stepwise logistic regression analysis to identify significant independent risk factors for bradycardia, SVT, and epilepsy.
Results
One hundred thirty-two patients received ICMs to monitor unexplained syncope. During the 17-month follow-up period, 19 patients (10 patients had sick sinus syndrome and 9 had atrioventricular block) needed pacemaker for bradycardia; 8 patients (3 had atrial flutter, 4 had atrial tachycardia, and 1 had paroxysmal atrial fibrillation) needed catheter ablation for SVT; and 9 patients needed antiepileptic agents from the neurologist.Stepwise logistic regression analysis indicated that syncope during effort (odds ratio [OR] = 3.41; 95% confidence interval [CI], 1.21 to 9.6; p=0.02) was an independent risk factor for bradycardia. Palpitation before syncope (OR = 9.46; 95% CI, 1.78 to 50.10; p=0.008) and history of atrial fibrillation (OR = 10.1; 95% CI, 1.96 to 52.45; p=0.006) were identified as significant independent prognostic factors for SVT. Syncope while supine (OR = 11.7; 95% CI, 1.72 to 79.7; p=0.01) or driving (OR = 15.6; 95% CI, 2.10 to 115.3; p=0.007) was an independent factor for epileptic seizure.
Conclusions
ICMs are useful devices for diagnosing unexplained syncope. Palpitation, atrial fibrillation and syncope during effort were independent risk factors for bradycardia and for SVT. Syncope while supine or driving was an independent risk factor for epilepsy. We should carefully follow up of patients with these risk factors.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Onuki
- Showa University Hospital, Division of Cardiology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - M Shoji
- Showa University Hospital, Division of Cardiology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - M Kikuchi
- Cardiovascular Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - T Asano
- Division of Cardiology, Department of Medicine, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - H Suzuki
- Division of Cardiology, Department of Medicine, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - K Tannno
- Cardiovascular Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - T Shinke
- Showa University Hospital, Division of Cardiology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
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12
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Nishikura T, Wakabayashi K, Aizawa N, Suzuki T, Shibata K, Furuya T, Kosaki R, Fukuoka H, Ikeda N, Kikuchi M, Miyoshi F, Tanno K. Safety and efficacy of a hyperaemic agent, intracoronary nicorandil 4mg, for invasive physiological assessments during fractional flow reserve measurement. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Fractional flow reserve (FFR) is one of most reliable index for the determining the functional severity coronary artery stenosis. Adenosine is the most commonly used agent for maximal hyperaemia. However, adenosine can cause chest discomfort, bronchial hyper-reactivity, and atrioventricular block. The aim of this study is to evaluate the safety and efficacy of intracoronary nicorandil as an alternative hyperaemic agent for FFR.
Methods and results
We enrolled consecutive 82 patients (87 lesions) who underwent FFR measurement in our center from Nov. 2018. We compared three groups; intravenous infusion of adenosine (150 μg/kg/min); and adenosine added intracoronary nicorandil 2mg; and intracoronary nicorandil 4mg. Mean FFR value was 0.83±0.09, 0.82±0.09, 0.82±0.08, There was a strong correlation among three groups (R2>0.9). Mean cyclic change in FFR was 0.026±0.023, 0.019±0.010, 0.016±0.014, respectively, cyclic change was smallest in intracoronary nicorandil 4mg group (vs ATP; p<0.001, vs ATP + nicorandil 2mg; p<0.001). By Wilcoxon test, mean FFR value of nicorandil 4mg was significant lower than ATP (p=0.0021), and equal to ATP + nicorandil 2mg (p=0.98).
Conclusions
Intracoronary nicorandil 4mg is a simple, safe, and effective way to induce steady-state hyperaemia for FFR.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Nishikura
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | | | - N Aizawa
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - T Suzuki
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - K Shibata
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - T Furuya
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - R Kosaki
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - H Fukuoka
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - N Ikeda
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - M Kikuchi
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - F Miyoshi
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - K Tanno
- Showa University Koto Toyosu Hospital, Tokyo, Japan
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13
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Leonardo L, Varona G, Fornillos RJ, Manalo D, Tabios IK, Moendeg K, de Cadiz A, Kikuchi M, Chigusa Y, Mistica M, Hernandez L, Palasi W, Fontanilla IK. Oncomelania hupensis quadrasi: Snail intermediate host of Schistosoma japonicum in the Philippines. Acta Trop 2020; 210:105547. [PMID: 32479837 DOI: 10.1016/j.actatropica.2020.105547] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 05/12/2020] [Accepted: 05/18/2020] [Indexed: 01/08/2023]
Abstract
Oncomelania hupensis quadrasi is the snail intermediate host of Schistosoma japonicum in the Philippines. It was discovered by Dr. Marcos Tubangui in 1932 more than two decades after the discovery of the disease in the country in 1906. This review, the first for O. h. quadrasi, presents past and present works on the taxonomy, biology, ecology, control, possible paleogeographic origin of the snail intermediate host and future in research, control and surveillance of the snail. Extensive references are made of other subspecies of O. hupensis such as the subspecies in China for which majority of the advances has been accomplished. Contrasting views on whether the snail is to be considered an independent species of Oncomelania or as one of several subspecies of Oncomelania hupensis are presented. Snail control methods such as chemical methods using synthetic and botanical molluscicides, environmental manipulation and biological control are reviewed. Use of technologies such as Remote Sensing, Geographical Information System and landscape genetics is stressed for snail surveillance. Control and prevention efforts in the Philippines have consistently focused on mass drug administration which has proved inadequate in elimination of the disease. An integrated approach that includes snail control, environmental sanitation and health education has been proposed. Population movement such as migration for employment and economic opportunities and ecotourism and global climate change resulting in heavy rains and flooding challenge the gains of control and elimination efforts. Concern for possible migration of snails to non-endemic areas is expressed given the various changes both natural and mostly man-made favoring habitat expansion.
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14
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Nakamura R, Yoshizawa A, Moriyasu T, Deloer S, Senba M, Kikuchi M, Koyasu S, Moro K, Hamano S. Group 2 Innate Lymphoid Cells Exacerbate Amebic Liver Abscess in Mice. iScience 2020; 23:101544. [PMID: 33083770 PMCID: PMC7509001 DOI: 10.1016/j.isci.2020.101544] [Citation(s) in RCA: 2] [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] [Received: 12/30/2019] [Revised: 07/24/2020] [Accepted: 09/04/2020] [Indexed: 01/21/2023] Open
Abstract
Entamoeba histolytica, a protozoan parasite in the lumen of the human large intestine, occasionally spreads to the liver and induces amebic liver abscesses (ALAs). Upon infection with E. histolytica, high levels of type 2 cytokines are induced in the liver early after infection. However, the sources and functions of these initial type 2 cytokines in ALA formation remain unclear. In this study, we examined the roles of group 2 innate lymphoid cells (ILC2s) in ALA formation. Hepatic ILC2 numbers were significantly increased and they produced robust levels of IL-5. The in vivo transfer of ILC2s into Rag2−/−common γ chain (γc)−/− KO mice aggravated ALA formation accompanied by eosinophilia and neutrophilia. Furthermore, IL-33-deficient mice and IL-5-neutralized mice had less ALA formations. These results suggest that ILC2s contribute to exacerbating the pathogenesis of ALA by producing early type 2 cytokines and promoting the accumulation of eosinophils and neutrophils in the liver. ILC2s exacerbate ALA by promoting the accumulation of eosinophils and neutrophils Hepatic ILC2s are increased and the main source of IL-5 in the early phase of ALA Hepatic ILC2s localize with IL-33+ cells in the inflammatory areas of ALA IL-33 is a trigger of ILC2-mediated ALA formation
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Affiliation(s)
- Risa Nakamura
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan.,Graduate School of Biomedical Sciences Doctoral Leadership Program, Nagasaki University, Nagasaki, Japan.,The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan
| | - Akihiro Yoshizawa
- Laboratory for Innate Immune Systems, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan.,Department of Cardiovascular Medicine, International University of Health and Welfare (IUHW), School of Medicine, Chiba, Japan
| | - Taeko Moriyasu
- Graduate School of Biomedical Sciences Doctoral Leadership Program, Nagasaki University, Nagasaki, Japan.,The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan.,Kenya Research Station, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Sharmina Deloer
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan.,Graduate School of Biomedical Sciences Doctoral Leadership Program, Nagasaki University, Nagasaki, Japan.,The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan.,Mucosal Immunity Section, Laboratory of Clinical Immunology and Microbiology (LCIM), National Institute of Allergy and infectious Diseases (NIAID), NIH, Maryland, USA
| | - Masachika Senba
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan.,Department of Pathology, 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, Japan.,Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Shigeo Koyasu
- Laboratory for Immune Cell Systems, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan.,Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Kazuyo Moro
- Laboratory for Innate Immune Systems, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan.,Laboratory for Innate Immune Systems, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shinjiro Hamano
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan.,Graduate School of Biomedical Sciences Doctoral Leadership Program, Nagasaki University, Nagasaki, Japan.,The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Japan
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15
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Hasegawa M, Pilotte N, Kikuchi M, Means AR, Papaiakovou M, Gonzalez AM, Maasch JRMA, Ikuno H, Sunahara T, Ásbjörnsdóttir KH, Walson JL, Williams SA, Hamano S. What does soil-transmitted helminth elimination look like? Results from a targeted molecular detection survey in Japan. Parasit Vectors 2020; 13:6. [PMID: 31915050 PMCID: PMC6950881 DOI: 10.1186/s13071-019-3875-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 09/08/2019] [Accepted: 12/30/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Japan is one of the few countries believed to have eliminated soil-transmitted helminths (STHs). In 1949, the national prevalence of Ascaris lumbricoides was 62.9%, which decreased to 0.6% in 1973 due to improvements in infrastructure, socioeconomic status, and the implementation of national STH control measures. The Parasitosis Prevention Law ended in 1994 and population-level screening ceased in Japan; therefore, current transmission status of STH in Japan is not well characterized. Sporadic cases of STH infections continue to be reported, raising the possibility of a larger-scale recrudescence of STH infections. Given that traditional microscopic detection methods are not sensitive to low-intensity STH infections, we conducted targeted prevalence surveys using sensitive PCR-based assays to evaluate the current STH-transmission status and to describe epidemiological characteristics of areas of Japan believed to have achieved historical elimination of STHs. METHODS Stool samples were collected from 682 preschool- and school-aged children from six localities of Japan with previously high prevalence of STH. Caregivers of participants completed a questionnaire to ascertain access to water, sanitation and hygiene (WASH), and potential exposures to environmental contamination. For fecal testing, multi-parallel real-time PCR assays were used to detect infections of Ascaris lumbricoides, Necator americanus, Ancylostoma duodenale and Trichuris trichiura. RESULTS Among the 682 children, no positive samples were identified, and participants reported high standards of WASH. CONCLUSIONS To our knowledge, this is the first STH-surveillance study in Japan to use sensitive molecular techniques for STH detection. The results suggest that recrudescence of STH infections has not occurred, and that declines in prevalence have been sustained in the sampled areas. These findings suggest that reductions in prevalence below the elimination thresholds, suggestive of transmission interruption, are possible. Additionally, this study provides circumstantial evidence that multi-parallel real-time PCR methods are applicable for evaluating elimination status in areas where STH prevalence is extremely low.
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Affiliation(s)
- Mitsuko Hasegawa
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan.,Doctoral Leadership Program, 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
| | - Nils Pilotte
- Department of Biological Sciences, Smith College, Northampton, Massachusetts, USA.,Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts, USA
| | - Mihoko Kikuchi
- Doctoral Leadership Program, 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.,Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Arianna R Means
- Department of Global Health, University of Washington, Seattle, Washington, USA.,Department of Life Sciences, Natural History Museum, London, UK
| | - Marina Papaiakovou
- Department of Biological Sciences, Smith College, Northampton, Massachusetts, USA.,Department of Life Sciences, Natural History Museum, London, UK
| | - Andrew M Gonzalez
- Department of Biological Sciences, Smith College, Northampton, Massachusetts, USA
| | | | - Hiroshi Ikuno
- Department of Bacteriology, BML, Inc, Saitama, Japan
| | - Toshihiko Sunahara
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan.,Department of Vector Ecology and Environment, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | | | - Judd L Walson
- Department of Global Health, University of Washington, Seattle, Washington, USA.,Department of Life Sciences, Natural History Museum, London, UK.,Departments of Medicine (Infectious Disease), Pediatrics and Epidemiology, University of Washington, Seattle, Washington, USA
| | - Steven A Williams
- Department of Biological Sciences, Smith College, Northampton, Massachusetts, USA.,Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts, USA
| | - Shinjiro Hamano
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan. .,Doctoral Leadership Program, 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.
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16
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Fornillos RJC, Sato MO, Tabios IKB, Sato M, Leonardo LR, Chigusa Y, Minamoto T, Kikuchi M, Legaspi ER, Fontanilla IKC. Detection of Schistosoma japonicum and Oncomelania hupensis quadrasi environmental DNA and its potential utility to schistosomiasis japonica surveillance in the Philippines. PLoS One 2019; 14:e0224617. [PMID: 31747401 PMCID: PMC6867693 DOI: 10.1371/journal.pone.0224617] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 05/29/2019] [Accepted: 10/17/2019] [Indexed: 11/25/2022] Open
Abstract
In recent years, the prevalence and infection intensity of Schistosoma japonicum in endemic areas of the Philippines have significantly decreased due to yearly population-based treatment strategies, yet transmission rates remain high and uninterrupted. An important indicator of active disease transmission is the presence of Schistosoma japonicum and its snail intermediate host Oncomelania hupensis quadrasi in freshwater habitats. In this study, we sought to apply a species-specific real-time PCR (qPCR) assay for the detection of S. japonicum and O. hupensis quadrasi in freshwater samples using environmental DNA approach that can complement the commonly utilized malacological survey in determining potential transmission foci in order to have a more effective snail surveillance strategy for schistosomiasis japonica in endemic areas. The newly developed assay was specific to S. japonicum and O. hupensis quadrasi with no amplification detected against non-target trematode Fasciola spp. and snails such as Lymnaea spp., Pomacea canaliculata, and Melanoides spp. that typically co-exist in the same environment. The assay effectiveness was determined using 19 environmental water samples collected from Northern Samar (N = 5 sites), Leyte (N = 11 sites) and Compostela Valley (N = 3 sites) and compared to malacological survey for determining O. hupensis quadrasi snail colonies and snail crushing to visualize S. japonicum cercariae. TaqMan qPCR targeting a short fragment of the cytochrome c oxidase subunit 1 (cox1) gene was positive for S. japonicum in 9 sites, for O. hupensis quadrasi in 9 sites, and for both S. japonicum and O. hupensis quadrasi in 5 sampling sites. Moreover, it was able to detect O. hupensis quadrasi in 3 out of 12 sites found negative and 6 out of 7 sites found positive through malacological survey, and in 4 of the 5 snail sites positive for snails with cercariae. Overall, this method can complement malacological surveys for monitoring of schistosomes in endemic areas of the Philippines, especially those with high risk of human infection.
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Affiliation(s)
- Raffy Jay C. Fornillos
- DNA Barcoding Laboratory, Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
- Natural Sciences Research Institute, University of the Philippines Diliman, P. Velasquez St. Diliman, Quezon City, Philippines
| | - Marcello Otake Sato
- Department of Tropical Medicine and Parasitology, Dokkyo Medical University, Tochigi, Japan
| | - Ian Kim B. Tabios
- College of Medicine, University of the Philippines Manila, Ermita Manilla, Philippines
| | - Megumi Sato
- Graduate School of Health Sciences, Niigata, Japan
| | - Lydia R. Leonardo
- DNA Barcoding Laboratory, Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
- Graduate School, University of the East Ramon Magsaysay Memorial Medical Center, Quezon City, Philippines
| | - Yuichi Chigusa
- Department of Tropical Medicine and Parasitology, Dokkyo Medical University, Tochigi, Japan
| | - Toshifumi Minamoto
- Graduate School of Human Development and Environment, Kobe University, Tsurukabuto, Nada-ku, Kobe, Japan
| | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Emelda R. Legaspi
- Medical Zoology Laboratory, Schistosomiasis Research and Training Center, Palo Leyte, Philippines
| | - Ian Kendrich C. Fontanilla
- DNA Barcoding Laboratory, Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
- Natural Sciences Research Institute, University of the Philippines Diliman, P. Velasquez St. Diliman, Quezon City, Philippines
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Tozaki T, Kusano K, Ishikawa Y, Kushiro A, Nomura M, Kikuchi M, Kakoi H, Hirota K, Miyake T, Hill EW, Nagata S. A candidate-SNP retrospective cohort study for fracture risk in Japanese Thoroughbred racehorses. Anim Genet 2019; 51:43-50. [PMID: 31612520 DOI: 10.1111/age.12866] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2019] [Indexed: 11/30/2022]
Abstract
Fractures are medical conditions that compromise the athletic potential of horses and/or the safety of jockeys. Therefore, the reduction of fracture risk is an important horse and human welfare issue. The present study used molecular genetic approaches to determine the effect of genetic risk for fracture at four candidate SNPs spanning the myostatin (MSTN) gene on horse chromosome 18. Among the 3706 Japanese Thoroughbred racehorses, 1089 (29.4%) had experienced fractures in their athletic life, indicating the common occurrence of this injury in Thoroughbreds. In the case/control association study, fractures of the carpus (carpal bones and distal radius) were statistically associated with g.65809482T/C (P = 1.17 x 10-8 ), g.65868604G/T (P = 2.66 x 10-9 ), and g.66493737C/T (P = 6.41 x 10-8 ). In the retrospective cohort study using 1710 racehorses born in 2000, the relative risk (RR) was highest for male horses at g.65868604G/T, based on the dominant allele risk model (RR = 2.251, 95% confidence interval 1.407-3.604, P = 0.00041), and for female horses at g.65868604G/T, based on the recessive allele risk model (RR = 2.313, 95% confidence interval 1.380-3.877, P = 0.00163). Considering the association of these SNPs with racing performance traits such as speed, these genotypes may affect the occurrence of carpus fractures in Japanese Thoroughbred racehorses as a consequence of the non-genetic influence of the genotype on the distance and/or intensity of racing and training. The genetic information presented here may contribute to the development of strategic training programs and racing plans for racehorses that improve their health and welfare.
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Affiliation(s)
- T Tozaki
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - K Kusano
- Equine Department, Japan Racing Association, Minato, Tokyo, 106-8401, Japan
| | - Y Ishikawa
- Racehorse Hospital Ritto Training Center, Japan Racing Association, Ritto, Shiga, 520-3005, Japan
| | - A Kushiro
- Racehorse Hospital Miho Training Center, Japan Racing Association, Miho, Ibaraki, 300-0493, Japan
| | - M Nomura
- Racehorse Hospital Ritto Training Center, Japan Racing Association, Ritto, Shiga, 520-3005, Japan
| | - M Kikuchi
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - H Kakoi
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - K Hirota
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - T Miyake
- Comparative Agricultural Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - E W Hill
- School of Agriculture and Food Science, University College Dublin, Dublin, 4, Ireland.,Plusvital Ltd, The Highline, Dun Laoghaire Industrial Estate, Pottery Road, Dun Laoghaire, Co Dublin, Ireland
| | - S Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
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Vásquez Velásquez C, Russomando G, Espínola EE, Sanchez Z, Mochizuki K, Roca Y, Revollo J, Guzman A, Quiroga B, Rios Morgan S, Vargas Ortiz R, Zambrana Ortega A, Espinoza E, Nishizawa JE, Kamel MG, Kikuchi M, Mizukami S, Na-Bangchang K, Tien Huy N, Hirayama K. IL-17A, a possible biomarker for the evaluation of treatment response in Trypanosoma cruzi infected children: A 12-months follow-up study in Bolivia. PLoS Negl Trop Dis 2019; 13:e0007715. [PMID: 31553732 PMCID: PMC6760767 DOI: 10.1371/journal.pntd.0007715] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 08/16/2019] [Indexed: 12/14/2022] Open
Abstract
Background The National Program for Chagas disease was implemented in Bolivia in 2006, and it greatly decreased the number of infections through vector control. Subsequently, a treatment regimen of benznidazole (BNZ) was started in seropositive school-age children living in certified vector control areas. Methods and findings We conducted a 12-month follow-up study and seven blood samples were taken during and after the treatment. Serology, conventional diagnostic PCR (cPCR) and quantitative Real-time PCR (qPCR) were performed. Plasma Th1/Th2/Th17 cytokines levels were also determined. Approximately 73 of 103 seropositive children complied with BNZ, with three interruptions due to side effects. To evaluate each individual’s treatment efficacy, the cPCR and qPCR values during the final 6 months of the follow-up period were observed. Among 57 children who completed follow-up, 6 individuals (11%) showed both cPCR(+) and qPCR(+) (non reactive), 24 (42%) cPCR(-) but qPCR(+) (ambiguous) and 27 (47%) cPCR(-) and qPCR(-) (reactive). Within 14 Th1/Th2/Th17 cytokines, IL-17A showed significantly higher levels in seropositive children before the treatment compared to age-matched seronegative children and significantly decreased to the normal level one-year after. Moreover, throughout the follow-up study, IL-17A levels were positively co-related to parasite counts detected by qPCR. At the 12 months’ time point, IL-17A levels of non-reactive subjects were significantly higher than either those of reactive or ambiguous subjects suggesting that IL-17A might be useful to determine the reactivity to BNZ treatment. Conclusions Plasma levels of IL-17A might be a bio-marker for detecting persistent infection of T. cruzi and its chronic inflammation. Chagas is a zoonosis endemic in 21 Latin American countries caused by T. cruzi. Results of common Benznidazole (BNZ) treatment vary by infection phase, treatment period, and dosage. In Bolivia, the national Chagas program controls vector distribution in different regions of the country. The program began BNZ treatment in school-age children from infestation-free endemic areas. Lack of information regarding follow-up and efficacy in children with recent chronic Chagas makes treatment failure difficult to detect in endemic areas. The present study aimed to estimate parasite DNA in blood through quantitative real-time and conventional PCR (qPCR, cPCR), and observe Th1/Th2/Th17 cytokine profiling during a 12-month follow-up in Bolivia school children. Results showed persistence of low, substantial amounts of T. cruzi DNA, and significantly higher IL-17A levels in the seropositive group before treatment than the seronegative group, which decreased to seronegative levels one year later. Of 57 treated, 6 showed cPCR positive results 6 months after treatment and were diagnosed as definitely non-reactive (10.5%). The six non-reactive individuals showed significantly higher levels of IL-17A at 12 months than residual reactive (cPCR negative, qPCR negative) and ambiguously reactive (cPCR negative, qPCR positive) groups, indicating that IL-17A might be a biomarker for non-reactive to BNZ.
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Affiliation(s)
- Clara Vásquez Velásquez
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto, Nagasaki, Japan
- Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Graciela Russomando
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, Asunción, Paraguay
| | - Emilio E. Espínola
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, Asunción, Paraguay
| | - Zunilda Sanchez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, Asunción, Paraguay
| | - Kota Mochizuki
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto, Nagasaki, Japan
- Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Yelin Roca
- Centro Nacional de Enfermedades Tropicales (CENETROP), Santa Cruz, Bolivia
| | - Jimmy Revollo
- Centro Nacional de Enfermedades Tropicales (CENETROP), Santa Cruz, Bolivia
| | - Angelica Guzman
- Centro Nacional de Enfermedades Tropicales (CENETROP), Santa Cruz, Bolivia
| | - Benjamín Quiroga
- Programa Departamental de Control de Chagas del Ministerio de Salud, Santa Cruz, Bolivia
| | - Susana Rios Morgan
- Programa Departamental de Control de Chagas del Ministerio de Salud, Santa Cruz, Bolivia
| | - Roberto Vargas Ortiz
- Programa Departamental de Control de Chagas del Ministerio de Salud, Santa Cruz, Bolivia
| | | | - Eida Espinoza
- Hospital Municipal Warnes "Nuestra Señora del Rosario", Santa Cruz, Bolivia
| | | | | | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Shusaku Mizukami
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto, Nagasaki, Japan
| | - Kesara Na-Bangchang
- Chulabhorn International College of Medicine, Thammasat University, Pathumthani, Thailand
| | - Nguyen Tien Huy
- Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto, Nagasaki, Japan
- Department of Clinical Product Development, Institute of Tropical Medicine (NEKKEN), School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto, Nagasaki, Japan
- Graduate School of Biomedical Sciences, Nagasaki University, Sakamoto, Nagasaki, Japan
- * E-mail:
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19
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Calata FIC, Caranguian CZ, Mendoza JEM, Fornillos RJC, Tabios IKB, Fontanilla IKC, Leonardo LR, Sunico LS, Kawai S, Chigusa Y, Kikuchi M, Sato M, Minamoto T, Baoanan ZG, Sato MO. Analysis of Environmental DNA and Edaphic Factors for the Detection of the Snail Intermediate Host Oncomelania hupensis quadrasi. Pathogens 2019; 8:E160. [PMID: 31547610 PMCID: PMC6963648 DOI: 10.3390/pathogens8040160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 06/25/2019] [Revised: 08/20/2019] [Accepted: 09/10/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The perpetuation of schistosomiasis japonica in the Philippines depends to a major extent on the persistence of its intermediate host Oncomelania hupensis quadrasi, an amphibious snail. While the malacological survey remains the method of choice in determining the contamination of the environment as evidenced by snails infected with schistosome larval stages, an emerging technology known as environmental DNA (eDNA) detection provides an alternative method. Previous reports showed that O. hupensis quadrasi eDNA could be detected in water, but no reports have been made on its detection in soil. METHODS This study, thus focused on the detection of O. hupensis quadrasi eDNA from soil samples collected from two selected schistosomiasis-endemic barangays in Gonzaga, Cagayan Valley using conventional and TaqMan-quantitative (qPCR) PCRs. RESULTS The results show that qPCR could better detect O. hupensis quadrasi eDNA in soil than the conventional method. In determining the possible distribution range of the snail, basic edaphic factors were measured and correlated with the presence of eDNA. The eDNA detection probability increases as the pH, phosphorous, zinc, copper, and potassium content increases, possibly indicating the conditions in the environment that favor the presence of the snails. A map was generated to show the probable extent of the distribution of the snails away from the body of the freshwater. CONCLUSION The information generated from this study could be used to determine snail habitats that could be possible hotspots of transmission and should, therefore, be targeted for snail control or be fenced off from human and animal contact or from the contamination of feces by being a dumping site for domestic wastes.
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Affiliation(s)
- Fritz Ivy C Calata
- Department of Biology, College of Science, University of the Philippines Baguio, Governor Pack Road, Baguio City 2600, Philippines.
| | - Camille Z Caranguian
- Department of Biology, College of Science, University of the Philippines Baguio, Governor Pack Road, Baguio City 2600, Philippines.
| | - Jillian Ela M Mendoza
- Department of Biology, College of Science, University of the Philippines Baguio, Governor Pack Road, Baguio City 2600, Philippines.
| | - Raffy Jay C Fornillos
- DNA Barcoding Laboratory, College of Science, National Science Complex, University of the Philippines Diliman, Quezon City 1101, Philippines.
- Natural Sciences Research Institute, College of Science, National Science Complex, University of the Philippines Diliman, Quezon City 1101, Philippines.
| | - Ian Kim B Tabios
- College of Medicine, University of the Philippines Manila, Pedro Gil St. Ermita, Manila 1000, Philippines.
| | - Ian Kendrich C Fontanilla
- DNA Barcoding Laboratory, College of Science, National Science Complex, University of the Philippines Diliman, Quezon City 1101, Philippines.
- Natural Sciences Research Institute, College of Science, National Science Complex, University of the Philippines Diliman, Quezon City 1101, Philippines.
| | - Lydia R Leonardo
- DNA Barcoding Laboratory, College of Science, National Science Complex, University of the Philippines Diliman, Quezon City 1101, Philippines.
- Graduate School, University of the East Ramon Magsaysay Memorial Medical Center, 64 Aurora Blvd., Quezon City 1100, Philippines.
| | - Louie S Sunico
- Rural Health Unit, Municipal Health Office, Gonzaga, Cagayan Valley 3515, Philippines.
| | - Satoru Kawai
- Department of Tropical Medicine and Parasitology, Dokkyo Medical University, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi 321-0293, Japan.
| | - Yuichi Chigusa
- Department of Tropical Medicine and Parasitology, Dokkyo Medical University, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi 321-0293, Japan.
| | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan.
| | - Megumi Sato
- Graduate School of Health Sciences, Niigata University 2-746 Asahimachi-dori, Chuo-ku, Niigata 951-8518, Japan.
| | - Toshifumi Minamoto
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe 657-8501, Japan.
| | - Zenaida G Baoanan
- Department of Biology, College of Science, University of the Philippines Baguio, Governor Pack Road, Baguio City 2600, Philippines.
| | - Marcello Otake Sato
- Department of Tropical Medicine and Parasitology, Dokkyo Medical University, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi 321-0293, Japan.
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20
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Tozaki T, Kikuchi M, Kakoi H, Hirota K, Nagata S, Yamashita D, Ohnuma T, Takasu M, Kobayashi I, Hobo S, Manglai D, Petersen JL. Genetic diversity and relationships among native Japanese horse breeds, the Japanese Thoroughbred and horses outside of Japan using genome-wide SNP data. Anim Genet 2019; 50:449-459. [PMID: 31282588 DOI: 10.1111/age.12819] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2019] [Indexed: 11/29/2022]
Abstract
Eight horse breeds-Hokkaido, Kiso, Misaki, Noma, Taishu, Tokara, Miyako and Yonaguni-are native to Japan. Although Japanese native breeds are believed to have originated from ancient Mongolian horses imported from the Korean Peninsula, the phylogenetic relationships among these breeds are not well elucidated. In the present study, we compared genetic diversity among 32 international horse breeds previously evaluated by the Equine Genetic Diversity Consortium, the eight Japanese native breeds and Japanese Thoroughbreds using genome-wide SNP genotype data. The proportion of polymorphic loci and expected heterozygosity showed that the native Japanese breeds, with the exception of the Hokkaido, have relatively low diversity compared to the other breeds sampled. Phylogenetic and cluster analyses demonstrated relationships among the breeds that largely reflect their geographic distribution in Japan. Based on these data, we suggest that Japanese horses originated from Mongolian horses migrating through the Korean Peninsula. The Japanese Thoroughbreds were distinct from the native breeds, and although they maintain similar overall diversity as Thoroughbreds from outside Japan, they also show evidence of uniqueness relative to the other Thoroughbred samples. This is the first study to place the eight native Japanese breeds and Japanese Thoroughbred in context with an international sample of diverse breeds.
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Affiliation(s)
- T Tozaki
- Genetic Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, 320-851, Japan.,Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan.,College of Animal Science, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - M Kikuchi
- Genetic Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, 320-851, Japan
| | - H Kakoi
- Genetic Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, 320-851, Japan
| | - K Hirota
- Genetic Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, 320-851, Japan
| | - S Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, 320-851, Japan
| | - D Yamashita
- Japan Equine Affairs Association, Chuo-ku, Tokyo, 104-0033, Japan
| | - T Ohnuma
- Japan Equine Affairs Association, Chuo-ku, Tokyo, 104-0033, Japan
| | - M Takasu
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | - I Kobayashi
- Sumiyoshi Livestock Science Station, Field Science Center, University of Miyazaki, Miyazaki, 880-0121, Japan
| | - S Hobo
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, 890-0065, Japan
| | - D Manglai
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - J L Petersen
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, 68583-0908, USA
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MINAKAWA A, Shinya K, Nishizono R, Kikuchi M, Sato Y, Fujimoto S. SUN-010 REDUCING 'PODOCYTE DENSITY' MIGHT PREDICTS FSGS BUT NOT MCD IN CASE OF NEPHROTIC SYNDROME. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.404] [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: 10/26/2022] Open
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SHINYA K, Minakawa A, Ishizaki Y, Ochiai S, Asou K, Nishizono R, Kikuchi M, Inagaki H, Sato Y, Fujimoto S. MON-011 A CASE SERIES OF MONOCLONAL GAMMOPATHY OF RENAL SIGNIFICANCE (MGRS) IN THE CONTEXT OF MONOCLONAL IMMUNOGLOBULIN DETECTION. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.767] [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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23
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Kikuchi M, Kizaki K, Shigeno S, Toji N, Ishiguro-Oonuma T, Koshi K, Takahashi T, Hashizume K. Newly identified interferon tau-responsive Hes family BHLH transcription factor 4 and cytidine/uridine monophosphate kinase 2 genes in peripheral blood granulocytes during early pregnancy in cows. Domest Anim Endocrinol 2019; 68:64-72. [PMID: 30870785 DOI: 10.1016/j.domaniend.2019.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 01/14/2019] [Accepted: 01/22/2019] [Indexed: 11/16/2022]
Abstract
In cattle, interferon-stimulated genes (ISGs) such as ISG15, MX1, MX2, and OAS1 are known as classic ISGs that are highly involved in the implantation process. Various molecules play a crucial role in the mechanisms underlying ISG effects. Although microarray analyses have highlighted the expression of various molecules during the implantation period, these molecules remain incompletely characterized. In the present study, various specifically expressed genes were selected and their characteristics were examined. The microarray data from peripheral blood leukocytes derived from artificially inseminated cows and granulocytes obtained from embryo-transferred cows, respectively, were used to identify new ISG candidates. Seven common genes, including ISG15 and OAS1, were confirmed, but only 4 of the 5 genes were amplified by reverse transcription quantitative polymerase chain reaction. In addition, 3 expressed sequence tags (ESTs) exhibited significantly greater expression in granulocytes from pregnant cows than that observed in bred nonpregnant cows, and the expression in granulocytes increased after interferon-tau stimulation. Sequence alignment revealed similar sequences within 2 ESTs on the Hairy and enhancer of split (Hes) family basic helix-loop-helix transcription factor 4 (HES4) gene. An additional EST was identified as cytidine/uridine monophosphate kinase 2 (CMPK2). In silico analysis facilitated the identification of transcription factor-binding sequences, including an interferon-stimulated response element and interferon regulatory factor-binding sites, within the promoter region of HES4 and CMPK2. These genes may function as new ISGs in the context of implantation and may participate in the coordination of the feto-maternal interface in cows.
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Affiliation(s)
- M Kikuchi
- Cooperative Department of Veterinary Medicine, Laboratory of Veterinary Physiology, Iwate University, Morioka, Iwate 020-8550, Japan
| | - K Kizaki
- Cooperative Department of Veterinary Medicine, Laboratory of Veterinary Physiology, Iwate University, Morioka, Iwate 020-8550, Japan.
| | - S Shigeno
- Cooperative Department of Veterinary Medicine, Laboratory of Veterinary Physiology, Iwate University, Morioka, Iwate 020-8550, Japan
| | - N Toji
- Cooperative Department of Veterinary Medicine, Laboratory of Veterinary Physiology, Iwate University, Morioka, Iwate 020-8550, Japan
| | - T Ishiguro-Oonuma
- Cooperative Department of Veterinary Medicine, Laboratory of Veterinary Physiology, Iwate University, Morioka, Iwate 020-8550, Japan
| | - K Koshi
- Cooperative Department of Veterinary Medicine, Laboratory of Veterinary Physiology, Iwate University, Morioka, Iwate 020-8550, Japan
| | - T Takahashi
- Cooperative Department of Veterinary Medicine, Laboratory of Veterinary Theriogenology, Iwate University, Morioka, Iwate 020-8550, Japan
| | - K Hashizume
- Cooperative Department of Veterinary Medicine, Laboratory of Veterinary Physiology, Iwate University, Morioka, Iwate 020-8550, Japan
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24
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Fornillos RJC, Fontanilla IKC, Chigusa Y, Kikuchi M, Kirinoki M, Kato-Hayashi N, Kawazu S, Angeles JM, Tabios IK, Moendeg K, Goto Y, Tamayo PG, Gampoy EF, Pates I, Chua JC, Leonardo LR. Infection rate of Schistosoma japonicum in the snail Oncomelania hupensis quadrasi in endemic villages in the Philippines: Need for snail surveillance technique. Trop Biomed 2019; 36:402-411. [PMID: 33597401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Schistosomiasis japonica is one of seven NTDs endemic in the Philippines that continues to threaten public health in the country. The causative agent, the blood fluke Schistosoma japonicum, uses an amphibious snail Oncomelania hupensis quadrasi which can harbor larval stages that multiply asexually, eventually producing the infective cercariae which are shed into the water. Contamination of freshwater bodies inhabited by the snail intermediate host occurs through release of human and animal feces containing S. japonicum eggs. Miracidia hatching from these eggs subsequently infect the snails that inhabit these water bodies. The degree of fecal contamination can vary across snail sites and influences snail infection rates in these sites. In this study, conventional malacological surveys using intensive manual search for snails were conducted from 2015 to 2016 in seven selected endemic provinces, namely Leyte and Bohol in the Visayas and Surigao del Norte, Agusan del Sur, Bukidnon, Lanao del Norte and Compostela Valley in Mindanao. A total of 6,279 O. hupensis quadrasi snails were collected from 38 snail sites. The municipality of Trento in Agusan del Sur recorded the highest number of snail sites (7) that yielded O. hupensis quadrasi snails while only one snail site was found positive for O. hupensis quadrasi snails in Kapatagan in Lanao del Norte and Talibon in Bohol. Alegria in Surigao del Norte yielded the highest number of snail sites (5) that were found to harbor snails positive for S. japonicum infection. The snail infection rates in this municipality ranged from 0.43% to 14.71%. None of the snails collected from Talibon in Bohol was infected. Bohol is the only province among the 28 schistosomiasis-endemic provinces which has reached near elimination status. Snail infection rates were found to vary considerably across snail sites, which could be due to the degree of fecal contamination of the snail sites and their connectivity to water that can serve as contamination source.
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Affiliation(s)
- R J C Fornillos
- Institute of Biology, National Science Complex, College of Science, University of the Philippines Diliman, Regidor St, Quezon City, 1101 Metro Manila, Philippines
| | - I K C Fontanilla
- Institute of Biology, National Science Complex, College of Science, University of the Philippines Diliman, Regidor St, Quezon City, 1101 Metro Manila, Philippines
| | - Y Chigusa
- Department of Tropical Medicine and Parasitology, Dokkyo Medical University, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi, Japan
| | - M Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN) Nagasaki University, Nagasaki, Japan
| | - M Kirinoki
- Department of Tropical Medicine and Parasitology, Dokkyo Medical University, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi, Japan
| | - N Kato-Hayashi
- Department of Tropical Medicine and Parasitology, Dokkyo Medical University, 880 Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi, Japan
| | - S Kawazu
- National Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - J M Angeles
- National Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - I K Tabios
- College of Medicine, University of the Philippines Manila, 625 Pedro Gil St, Ermita, 1000 Metro Manila, Philippines
| | - K Moendeg
- National Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
- Department of Biology, School of Science and Engineering, Ateneo de Manila University, Loyola Heights, Quezon City 1108, Metro Manila, Philippines
| | - Y Goto
- Graduate School Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - P G Tamayo
- Department of Parasitology, College of Public Health, University of the Philippines Manila, 625 Pedro Gil St, Ermita, 1000 Metro Manila Manila
| | - E F Gampoy
- College of Medicine, University of the Philippines Manila, 625 Pedro Gil St, Ermita, 1000 Metro Manila, Philippines
| | - I Pates
- Department of Parasitology, College of Public Health, University of the Philippines Manila, 625 Pedro Gil St, Ermita, 1000 Metro Manila Manila
| | - J C Chua
- College of Medical Technology, Chinese General Hospital, 286 Blumentritt St, Sta. Cruz, 1014 Metro Manila, Philippines
| | - L R Leonardo
- Institute of Biology, National Science Complex, College of Science, University of the Philippines Diliman, Regidor St, Quezon City, 1101 Metro Manila, Philippines
- Department of Parasitology, College of Public Health, University of the Philippines Manila, 625 Pedro Gil St, Ermita, 1000 Metro Manila Manila
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Sato C, Wakabayashi K, Honda Y, Shibata K, Furuya T, Nishikura T, Ikeda N, Kikuchi M, Miyoshi F, Toshida T, Tanno K. P241Low exercise tolerance predicts critical myocardial ischemia in asymptomatic patients with diabetic mellitus. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p241] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C Sato
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - K Wakabayashi
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - Y Honda
- Fuji hospital, Division of Cardiology, Shizuoka, Japan
| | - K Shibata
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - T Furuya
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - T Nishikura
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - N Ikeda
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - M Kikuchi
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - F Miyoshi
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - T Toshida
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
| | - K Tanno
- Showa University Koto-Toyosu Hospital, Division of Cardiology, Cardiovascular Center, Tokyo, Japan
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Abstract
SummaryThe effects of verapamil, a coronary vasodilator, on platelet functions were studied.Platelet aggregation induced by ADP, epinephrine or collagen was inhibited by verapamil in vitro. Calcium ionophore A23187-induced platelet aggregation was also inhibited by verapamil in a concentration dependent manner. In washed platelets, verapamil caused a dose-dependent inhibition of serotonin release induced either by thrombin or A23187 in the absence of extracellular calcium. Addition of 1 mM CaCl2 with A23187 or thrombin partially overcame this inhibition. Addition of 1 mM CaCl2 in the absence of verapamil had no effect on thrombin- or A23187-induced secretion. When verapamil was administered to the healthy volunteers at the dosage commonly used, inhibition of platelet aggregation was observed 2 hrs after the drug ingestion. It is of great interest that verapamil potentiated the anti-aggregating activity of prostacyclin in vitro.Our results may suggest a potential role for verapamil in the treatment of thrombotic disorders.
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Affiliation(s)
- Y Ikeda
- The Department of Hematology, Keio University, School of Medicine, Tokyo, Japan
| | - M Kikuchi
- The Department of Hematology, Keio University, School of Medicine, Tokyo, Japan
| | - K Toyama
- The Department of Hematology, Keio University, School of Medicine, Tokyo, Japan
| | - K Watanabe
- Department of Clinical Pathology, Keio University, School of Medicine, Tokyo, Japan
| | - Y Ando
- Department of Clinical Pathology, Keio University, School of Medicine, Tokyo, Japan
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Suzuki Y, Saito J, Kikuchi M, Uematsu M, Fukuhara A, Sato S, Munakata M. Sputum-to-serum hydrogen sulphide ratio as a novel biomarker of predicting future risks of asthma exacerbation. Clin Exp Allergy 2018; 48:1155-1163. [PMID: 29758106 DOI: 10.1111/cea.13173] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 04/16/2018] [Accepted: 04/22/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Increased level of hydrogen sulphide (H2 S) in sputum is reported to be a new biomarker of neutrophilic airway inflammation in chronic airway disorders. However, the relationship between H2 S and disease activity remains unclear. OBJECTIVE We investigated whether H2 S levels could vary during different conditions in asthma. METHOD H2 S levels in sputum and serum were measured using a sulphide-sensitive electrode in 47 stable asthmatic subjects (S-BA), 21 uncontrolled asthmatic subjects (UC-BA), 26 asthmatic subjects with acute exacerbation (AE-BA) and 15 healthy subjects. Of these, H2 S levels during stable, as well as exacerbation states, were obtained in 13 asthmatic subjects. RESULTS Sputum H2 S levels were significantly higher in the AE-BA subjects compared to the UC-BA and healthy subjects (P < .05). However, serum H2 S levels in the AE-BA subjects were lower than in the S-BA subjects (P < .001) and similar to those in healthy subjects. Thus, the sputum-to-serum ratio of H2 S (H2 S ratio) in the AE-BA subjects was significantly higher than in the S-BA, UC-BA and healthy subjects (P < .05). Among all subjects, sputum H2 S levels showed a trend to decrease with FEV1 %predicted and significantly positive correlations with sputum neutrophils (%), sputum IL-8 and serum IL-8. A multiple linear regression analysis showed that sputum H2 S was independently associated with increased sputum neutrophils (%) and decreased FEV1 %predicted (P < .05). The cut-off level of H2 S ratio to indicate an exacerbation was ≥0.34 (area under the curve; 0.88, with a sensitivity of 81.8% and specificity of 72.7%, P < .001). Furthermore, half of the asthmatic subjects with H2 S ratios higher than the cut-off level experienced asthma exacerbations over the following 3 months after enrolment. CONCLUSIONS The H2 S ratio may provide useful information on predicting future risks of asthma exacerbation, as well as on obstructive neutrophilic airway inflammation as one of the non-Th2 biomarkers, in asthma.
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Affiliation(s)
- Y Suzuki
- Department of Pulmonary Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - J Saito
- Department of Pulmonary Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - M Kikuchi
- Department of Pulmonary Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - M Uematsu
- Department of Pulmonary Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - A Fukuhara
- Department of Pulmonary Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - S Sato
- Department of Pulmonary Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - M Munakata
- Department of Pulmonary Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
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Helegbe GK, Huy NT, Yanagi T, Shuaibu MN, Kikuchi M, Cherif MS, Hirayama K. Elevated IL-17 levels in semi-immune anaemic mice infected with Plasmodium berghei ANKA. Malar J 2018; 17:169. [PMID: 29665817 PMCID: PMC5905139 DOI: 10.1186/s12936-018-2257-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 11/26/2017] [Accepted: 03/03/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Alterations in inflammatory cytokines and genetic background of the host contribute to the outcome of malaria infection. Despite the promising protective role of IL-17 in infections, little attention is given to further understand its importance in the pathogenesis of severe malaria anaemia in chronic/endemic situations. The objective of this study, therefore, was to evaluate IL-17 levels in anaemic condition and its association with host genetic factors. METHODS Two mice strains (Balb/c and CBA) were crossed to get the F1 progeny, and were (F1, Balb/c, CBA) taken through 6 cycles of Plasmodium berghei (ANKA strain) infection and chloroquine/pyrimethamine treatment to generate semi-immune status. Cytokine levels and kinetics of antibody production, CD4+CD25+T regulatory cells were evaluated by bead-based multiplex assay kit, ELISA and FACs, respectively. RESULTS High survival with high Hb loss at significantly low parasitaemia was observed in Balb/c and F1. Furthermore, IgG levels were two times higher in Balb/c, F1 than CBA. While CD4+CD25+ Treg cells were lower in CBA; IL-4, IFN-γ, IL-12α and IL-17 were significantly higher (p < 0.05) in Balb/c, F1. CONCLUSIONS In conclusion, elevated IL-17 levels together with high IL-4, IL-12α and IFN-γ levels may be a marker of protection, and the mechanism may be controlled by host factor (s). Further studies of F2 between the F1 and Balb/c will be informative in evaluating if these genes are segregated or further apart.
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Affiliation(s)
- Gideon Kofi Helegbe
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.,Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, University for Development Studies, Tamale, Ghana.,West Africa Center for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry, Cell and Molecular Biology, University of Ghana, Accra, Ghana
| | - Nguyen Tien Huy
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Tetsuo Yanagi
- National Bio-Resource Center (NBRC), NEKKEN, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Mohammed Nasir Shuaibu
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.,Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Mahamoud Sama Cherif
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan. .,National Bio-Resource Center (NBRC), NEKKEN, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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Ogisawa K, Uchiyama N, Watase C, Kurihara T, Shiino S, Iwamoto E, Jimbo K, Asaga S, Takayama S, Kikuchi M, Kurihara H, Kinoshita T. Clinical Usefulness of digital breast tomosynthesis (DBT) and 18F-FDG-PET/MR (PET/MR) for Neoadjuvant chemotherapy (NAC) cases. Eur J Cancer 2018. [DOI: 10.1016/s0959-8049(18)30670-1] [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]
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30
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Iwase M, Kikuchi M, Nunoi K, Wakisaka M, Maki Y, Sadoshima S, Fujishima M. Blood Pressure Changes in Spontaneously Hypertensive and Normotensive Rats with Neonatal Streptozotocin Induced Type 2 Diabetes. ACTA ACUST UNITED AC 2018. [DOI: 10.1080/07300077.1987.11983332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- M Iwase
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812, Japan
| | - M Kikuchi
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812, Japan
| | - K Nunoi
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812, Japan
| | - M Wakisaka
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812, Japan
| | - Y Maki
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812, Japan
| | - S Sadoshima
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812, Japan
| | - M Fujishima
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, 812, Japan
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Nakashoji A, Hayashida T, Yokoe T, Maeda H, Watanuki R, Kikuchi M, Seki T, Takahashi M, Abe T, Kitagawa Y. Abstract P5-20-11: Comparative effectiveness of neoadjuvant therapy for HER2-Positive breast cancer: Addition of new clinical evidence to network meta-analysis and data update after 5 years. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p5-20-11] [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: 11/16/2022]
Abstract
Abstract
Background: It is becoming more popular to perform neoadjuvant chemotherapy including anti-HER2 agents to operable HER2-positive breast cancer patients. Increasing HER2-targeted treatment options urge us to define the best neoadjuvant therapy. In 2014, we reported the systematical assessment of the efficacy and safety of neoadjuvant therapy for HER2-positive breast cancer, using network meta-analysis based on Bayesian model (Nagayama et al., JNCI 2014). Network meta-analysis synthesizes information from a network of trials, which helps interpret the randomized evidence and can rank treatments from different trials. After five years from our first literature search, we decided to update our analysis due to accumulation of new clinical evidence.
Methods: We assessed odds ratio for pathological complete response (pCR), completion, and safety in seven treatment arms utilizing pooling effect sizes. The treatment arms included the combinations of chemotherapy (CT), trastzumab (tzmb), lapatinib (lpnb) and pertzumab (pzmb). All statistical tests were two-sided, and we followed Preferred Reporting Items for Systematic Reviews and MetaAnalyses (PRISMA) guidelines.
Results: A database search identified 993 articles with 13 studies meeting the eligibility criteria, adding three studies (a trial of CT + tzmb vs CT + lpnb, and two trials of CT + tzmb vs CT + lpnb vs CT + tzmb + lpnb) to previous analysis. In direct comparison, CT + tzmb significantly achieved more pCR than CT + lpnb (OR=0.68, 95% CI = 0.52 to 0.89, p=.005) despite no statistical difference was found previously. In indirect comparison, treatment arms of dual anti-HER2 agents with CT achieved more pCR than other arms, reducing their credibility intervals against all other arms. This trend was stronger in CT + tzmb + lpnb arm (CT + tzmb + lpnb vs CT + tzmb, OR = 1.62, 95% CrI = 1.19 to 2.22, p = .003), which we added sufficient clinical evidence. Moreover, it exposed the need for additional clinical data for pzmb relative arms. Values of surface under the cumulative ranking (SUCRA) suggested that CT + tzmb + pzmb had the highest probability of being the best treatment arm for pCR (SUCRA = 0.95), followed by CT + tzmb + lpnb (SUCRA = 0.87), and CT + tzmb (SUCRA = 0.62), widening the gap and differentiating the top two dual blockade arms which were close in our previous report. All outcomes from our present analysis were consistent with our previous report and strengthened data solidity by reducing confidence or credibility intervals.
Conclusion: Consistent results in not only in pCR but also in completion rates and adverse events indicate that we are looking at the results which are close to the truth. Additional trials of lpnb relative regimens are not probable to change the results, but pzmb relative trials are required to improve evidence solidity. New clinical data established stronger evidence in network meta-analysis that combining two anti-HER2 agents with CT is most effective in the neoadjuvant setting for HER2-positive breast cancer.
Citation Format: Nakashoji A, Hayashida T, Yokoe T, Maeda H, Watanuki R, Kikuchi M, Seki T, Takahashi M, Abe T, Kitagawa Y. Comparative effectiveness of neoadjuvant therapy for HER2-Positive breast cancer: Addition of new clinical evidence to network meta-analysis and data update after 5 years [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P5-20-11.
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Affiliation(s)
| | | | - T Yokoe
- Keio University School of Medicine
| | - H Maeda
- Keio University School of Medicine
| | | | | | - T Seki
- Keio University School of Medicine
| | | | - T Abe
- Keio University School of Medicine
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Shimokawa C, Senba M, Kobayashi S, Kikuchi M, Obi S, Olia A, Hamano S, Hisaeda H. Intestinal Inflammation-Mediated Clearance of Amebic Parasites Is Dependent on IFN-γ. J Immunol 2017; 200:1101-1109. [PMID: 29255076 DOI: 10.4049/jimmunol.1700806] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 11/15/2017] [Indexed: 01/22/2023]
Abstract
Intestinal amebiasis is a major cause of diarrhea. However, research on host-amebae interactions has been hampered owing to a lack of appropriate animal models. Recently, a mouse model of intestinal amebiasis was established, and using it, we reported that Entamoeba moshkovskii colonized the intestine in a manner similar to that of the pathogenic Entamoeba histolytica In this study, we evaluated the protective mechanisms present against amebae using this model. CBA/J mice infected with E. histolytica had a persistent infection without apparent symptoms. In contrast, E. moshkovskii-infected mice rapidly expelled the ameba, which was associated with weight loss, diarrhea, and intestinal damage characterized by apoptosis of intestinal epithelial cells (IECs). Expression of NKG2D on intestinal intraepithelial lymphocytes (IELs) and IFN-γ-producing cells in Peyer's patches were significantly induced after infection with E. moshkovskii but not with E. histolytica IFN-γ-deficient mice infected with E. moshkovskii showed no obvious symptoms. Notably, none of these mice expelled E. moshkovskii, indicating that IFN-γ is responsible not only for intestinal symptoms but also for the expulsion of amebae. Furthermore, apoptosis of IECs and expression of NKG2D on IELs observed in E. moshkovskii-infected mice did not occur in the absence of IFN-γ. In vivo blocking of NKG2D in mice infected with E. moshkovskii enabled ameba to survive longer and remarkably reduced apoptotic IECs. Our results clearly demonstrate a novel protective mechanism exerted by IFN-γ against intestinal amebae, including induction of cytotoxicity of IELs toward IECs.
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Affiliation(s)
- Chikako Shimokawa
- Department of Parasitology, Graduate School of Medicine, Gunma University, Maebashi 371-8511, Japan
| | - Masachika Senba
- Department of Pathology, Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
| | - Seiki Kobayashi
- Department of Infectious Diseases, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan
| | - Mihoko Kikuchi
- Department of Immunogenetics, Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan; and
| | - Seiji Obi
- Department of Parasitology, Graduate School of Medicine, Gunma University, Maebashi 371-8511, Japan
| | - Alex Olia
- Department of Parasitology, Graduate School of Medicine, Gunma University, Maebashi 371-8511, Japan
| | - Shinjiro Hamano
- Department of Parasitology, Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine, Nagasaki University, Nagasaki 852-8523, Japan
| | - Hajime Hisaeda
- Department of Parasitology, Graduate School of Medicine, Gunma University, Maebashi 371-8511, Japan;
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Kikuchi M, Okamoto H, Sato K, Suzuki K, Cesana G, Hagihara Y, Takahashi N, Hayasaka T, Oki R. Development of Algorithm for Discriminating Hydrometeor Particle Types with a Synergistic Use of CloudSat and CALIPSO. J Geophys Res Atmos 2017; 122:11022-11044. [PMID: 32818127 PMCID: PMC7430508 DOI: 10.1002/2017jd027113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We developed a method for classifying hydrometeor particle types, including cloud and precipitation phase and ice crystal habit, by a synergistic use of CloudSat/Cloud Profiling Radar (CPR) and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO)/Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP). We investigated how the cloud phase and ice crystal habit characterized by CALIOP globally relate with radar reflectivity and temperature. The global relationship thus identified was employed to develop an algorithm for hydrometeor type classification with CPR alone. The CPR-based type classification was then combined with CALIPSO-based type characterization to give CPR-CALIOP synergy classification. A unique aspect of this algorithm is to exploit and combine the lidar's sensitivity to thin ice clouds and the radar's ability to penetrate light precipitation to offer more complete picture of vertically resolved hydrometeor type classification than has been provided by previous studies. Given the complementary nature of radar and lidar detections of hydrometeors, our algorithm delivers thirteen hydrometeor types: warm water, supercooled water, randomly-oriented ice crystal (3D-ice), horizontally-oriented plate (2D-plate), 3D-ice+2D-plate, liquid drizzle, mixed-phase drizzle, rain, snow, mixed-phase cloud, water+liquid drizzle, water+rain and unknown. The global statistics of three-dimensional occurrence frequency of each hydrometeor type revealed that 3D-ice contributes the most to the total cloud occurrence frequency (53.8%), followed by supercooled water (14.3%), 2D-plate (9.2%), rain (5.9%), warm water (5.7%), snow (4.8%), mixed-phase drizzle (2.3%), and the remaining types (4.0%). This hydrometeor type classification provides useful observation-based information for climate model diagnostics in representation of cloud phase and their microphysical characteristics.
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Affiliation(s)
- M Kikuchi
- Earth Observation Research Center, Japan Aerospace Exploration Agency, Ibaraki, Japan
| | - H Okamoto
- Research Institute for Applied Mechanics, Kyushu University, Fukuoka, Japan
| | - K Sato
- Research Institute for Applied Mechanics, Kyushu University, Fukuoka, Japan
| | - K Suzuki
- Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan
| | - G Cesana
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
- Goddard Institute for Space Studies, Columbia University, New York, New York, USA
| | - Y Hagihara
- Earth Observation Research Center, Japan Aerospace Exploration Agency, Ibaraki, Japan
| | - N Takahashi
- Hydrospheric Atmospheric Research Center, Nagoya University, Aichi, Japan
| | - T Hayasaka
- Center for Atmospheric and Oceanic Studies, Tohoku University, Miyagi, Japan
| | - R Oki
- Earth Observation Research Center, Japan Aerospace Exploration Agency, Ibaraki, Japan
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Chadeka EA, Nagi S, Sunahara T, Cheruiyot NB, Bahati F, Ozeki Y, Inoue M, Osada-Oka M, Okabe M, Hirayama Y, Changoma M, Adachi K, Mwende F, Kikuchi M, Nakamura R, Kalenda YDJ, Kaneko S, Hirayama K, Shimada M, Ichinose Y, Njenga SM, Matsumoto S, Hamano S. Spatial distribution and risk factors of Schistosoma haematobium and hookworm infections among schoolchildren in Kwale, Kenya. PLoS Negl Trop Dis 2017; 11:e0005872. [PMID: 28863133 PMCID: PMC5599053 DOI: 10.1371/journal.pntd.0005872] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 01/27/2017] [Revised: 09/14/2017] [Accepted: 08/14/2017] [Indexed: 11/19/2022] Open
Abstract
Background Large-scale schistosomiasis control programs are implemented in regions with diverse social and economic environments. A key epidemiological feature of schistosomiasis is its small-scale heterogeneity. Locally profiling disease dynamics including risk factors associated with its transmission is essential for designing appropriate control programs. To determine spatial distribution of schistosomiasis and its drivers, we examined schoolchildren in Kwale, Kenya. Methodology/Principal findings We conducted a cross-sectional study of 368 schoolchildren from six primary schools. Soil-transmitted helminths and Schistosoma mansoni eggs in stool were evaluated by the Kato-Katz method. We measured the intensity of Schistosoma haematobium infection by urine filtration. The geometrical mean intensity of S. haematobium was 3.1 eggs/10 ml urine (school range, 1.4–9.2). The hookworm geometric mean intensity was 3.2 eggs/g feces (school range, 0–17.4). Heterogeneity in the intensity of S. haematobium and hookworm infections was evident in the study area. To identify factors associated with the intensity of helminth infections, we utilized negative binomial generalized linear mixed models. The intensity of S. haematobium infection was associated with religion and socioeconomic status (SES), while that of hookworm infection was related to SES, sex, distance to river and history of anthelmintic treatment. Conclusions/Significance Both S. haematobium and hookworm infections showed micro-geographical heterogeneities in this Kwale community. To confirm and explain our observation of high S. haematobium risk among Muslims, further extensive investigations are necessary. The observed small scale clustering of the S. haematobium and hookworm infections might imply less uniform strategies even at finer scale for efficient utilization of limited resources. The World Health Organization is spearheading the war on neglected tropical diseases, including helminth infections, by encouraging its member states to intensify control efforts. This call has recently been answered in most endemic regions of helminthiasis and governments are scaling up chemotherapy-based control programs in collaboration with private and public partners. However, it is necessary to clearly understand factors driving local transmission dynamics of helminth infections to design effective control programs. Here, we conducted a cross-sectional survey of 368 primary schoolchildren in Kwale, Kenya, and identified factors associated with the intensity of Schistosoma haematobium and hookworm infections. The negative binomial generalized linear mixed model showed the intensity of S. haematobium infection was much higher among Muslims and schoolchildren from low socioeconomic status households. High intensity of hookworm infection was associated with sex, SES, distance to river and history of anthelmintic treatment. Our findings demonstrate considering social and cultural drivers of NTDs could be beneficial in designing of efficient control programs and expediting NTDs control.
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Affiliation(s)
- Evans Asena Chadeka
- Leading Program, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- 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
| | - Sachiyo Nagi
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Toshihiko Sunahara
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Department of Vector Ecology and Environment, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | | | - Felix Bahati
- Nagasaki University, Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Yuriko Ozeki
- Department of Bacteriology, Niigata University School of Medicine, Niigata, Japan
| | - Manabu Inoue
- Department of Bacteriology and Virology, Osaka-City University Graduate School of Medicine, Osaka, Japan
| | - Mayuko Osada-Oka
- Food Hygiene and Environmental Health Division of Applied Life Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Mayuko Okabe
- Department of Immunology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yukio Hirayama
- Department of Bacteriology, Niigata University School of Medicine, Niigata, Japan
| | - Mwatasa Changoma
- Nagasaki University, Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Keishi Adachi
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Department of Immunology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Faith Mwende
- Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - 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
| | - Risa Nakamura
- Leading Program, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- 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
| | - Yombo Dan Justin Kalenda
- 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
- Department of Eco-Epidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - 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
| | - Kenji Hirayama
- Leading Program, 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
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Masaaki Shimada
- Nagasaki University, Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
- Department of Eco-Epidemiology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Yoshio Ichinose
- Leading Program, 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
| | - Sammy M. Njenga
- Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - Sohkichi Matsumoto
- Department of Bacteriology, Niigata University School of Medicine, Niigata, Japan
| | - Shinjiro Hamano
- Leading Program, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- 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
- * E-mail:
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Murakami M, Arunasalam V, Bell J, Bell M, Bitter M, Blanchard W, Boody F, Boyd D, Bretz N, Bush C, Callen J, Cecchi J, Colchin R, Coonrod J, Davis S, Dimock D, Dylla H, Efthimion P, Emerson L, England A, Eubank H, Fonck R, Fredrickson E, Furth H, Grisham L, von Goeler S, Goldston R, Grek B, Grove D, Hawryluk R, Hendel H, Hill K, Hulse R, Johnson D, Johnson L, Kaita R, Kamperschroer J, Kaye S, Kikuchi M, Kilpatrick S, Kugel H, LaMarche P, Little R, Ma C, Manos D, Mansfield D, McCarthy M, McCann R, McCune D, McGuire K, Meade D, Medley S, Mikkelsen D, Mueller D, Nieschmidt E, Owens D, Pare V, Park H, Prichard B, Ramsey A, Rasmussen D, Roquemore A, Rutherford P, Sauthoff N, Schivell J, Schwob JL, Scott S, Sesnic S, Shimada M, Simpkins J, Sinnis J, Stauffer F, Stratton B, Suckewer S, Tait G, Taylor G, Tenney F, Thomas C, Towner H, Ulrickson M, Wieland R, Williams M, Wong KL, Wouters A, Yamada H, Yoshikawa S, Young K, Zarnstorff M. Confinement Studies In TFTR. ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst85-a40115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Murakami
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - V. Arunasalam
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - J.D. Bell
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - M.G. Bell
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - M. Bitter
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - W.R. Blanchard
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - F. Boody
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D. Boyd
- Permanent Address: University of Maryland, College Park, MD
| | - N. Bretz
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - C.E. Bush
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - J.D. Callen
- Permanent Address: University of Wisconsin, Madison, WI
| | - J.L. Cecchi
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R.J. Colchin
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - J. Coonrod
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - S.L. Davis
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D. Dimock
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - H.F. Dylla
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - P.C. Efthimion
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - L.C. Emerson
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - A.C. England
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - H.P. Eubank
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R. Fonck
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - E. Fredrickson
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - H.P. Furth
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - L.R. Grisham
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - S. von Goeler
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R.J. Goldston
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - B. Grek
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D.J. Grove
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R.J. Hawryluk
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - H. Hendel
- Permanent Address: RCA David Sarnoff Research Center, Princeton, NJ
| | - K.W. Hill
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R. Hulse
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D. Johnson
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - L.C. Johnson
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R. Kaita
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - J. Kamperschroer
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - S.M. Kaye
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - M. Kikuchi
- Permanent Address: Japan Atomic Energy Research Institute, Japan
| | - S. Kilpatrick
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - H. Kugel
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - P.H. LaMarche
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R. Little
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - C.H. Ma
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - D. Manos
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D. Mansfield
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - M. McCarthy
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R.T. McCann
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D.C. McCune
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - K. McGuire
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D.M. Meade
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - S.S. Medley
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D.R. Mikkelsen
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D. Mueller
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | | | - D.K. Owens
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - V.K. Pare
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - H. Park
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - B. Prichard
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - A. Ramsey
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - D.A. Rasmussen
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - A.L. Roquemore
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - P.H. Rutherford
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - N.R. Sauthoff
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - J. Schivell
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - J-L. Schwob
- Permanent Address: Hebrew University of Jerusalem, Israel
| | - S.D Scott
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - S. Sesnic
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - M. Shimada
- Permanent Address: Japan Atomic Energy Research Institute, Japan
| | - J.E. Simpkins
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - J. Sinnis
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - F. Stauffer
- Permanent Address: University of Maryland, College Park, MD
| | - B. Stratton
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - S. Suckewer
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - G.D. Tait
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - G. Taylor
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - F. Tenney
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - C.E. Thomas
- Permanent Address: Oak Ridge National Laboratory, Oak Ridge, TN
| | - H.H. Towner
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - M. Ulrickson
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - R. Wieland
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - M. Williams
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - K-L. Wong
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - A. Wouters
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - H. Yamada
- Permanent Address: Univeristy of Tokyo, Japan
| | - S. Yoshikawa
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - K.M Young
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
| | - M.C. Zarnstorff
- Plasma Physics Laboratory, Princeton University P.O. Box 451, Princeton, NJ 08544
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Mori S, Miura H, Yamazaki S, Suzuki T, Shimizu A, Seki Y, Kunugi T, Nishio S, Fujisawa N, Hishinuma A, Kikuchi M. Preliminary Design of a Solid Particulate Cooled Blanket for the Steady State Tokamak Reactor (SSTR). ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst92-a29973] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Mori
- Kawasaki Heavy Industries, Ltd., 2-4-25 Minami-suna, Koto-ku,Tokyo, 136, Japan (3)3615-5147
| | - H. Miura
- Kawasaki Heavy Industries, Ltd., 2-4-25 Minami-suna, Koto-ku,Tokyo, 136, Japan (3)3615-5147
| | - S. Yamazaki
- Kawasaki Heavy Industries, Ltd., 2-4-25 Minami-suna, Koto-ku,Tokyo, 136, Japan (3)3615-5147
| | - T. Suzuki
- Kawasaki Heavy Industries, Ltd., 2-4-25 Minami-suna, Koto-ku,Tokyo, 136, Japan (3)3615-5147
| | - A. Shimizu
- Kyushu University, 6-1 Kasuga-koen, Kasuga city, Fukuoka-ken, 816, Japan (92)573-9611
| | - Y. Seki
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - T. Kunugi
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - S. Nishio
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - N. Fujisawa
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - A. Hishinuma
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - M. Kikuchi
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
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Yoshimoto S, Araki T, Uemura T, Nezu T, Kondo M, Sasai K, Iwase M, Satake H, Yoshida A, Kikuchi M, Sekitani T. Wireless EEG patch sensor on forehead using on-demand stretchable electrode sheet and electrode-tissue impedance scanner. Annu Int Conf IEEE Eng Med Biol Soc 2017; 2016:6286-6289. [PMID: 28269686 DOI: 10.1109/embc.2016.7592165] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A wireless electroencephalogram (EEG) sensor using a stretchable electrode sheet and electrode-tissue impedance measurement module is presented herein. The sensor can be attached to the forehead using biocompatible gel with the electrode sheet. The sensor is compactly designed for 3 cm × 9 cm × 6 mm with weight of 12 g. Impedance scanning circuit is also proposed to evaluate the skin surface condition before EEG measurements. We developed the impedance scanning board for 3 cm × 5 cm × 3 mm, with weight of 5.6 g. Results show that the proposed system demonstrates a promising performance in diagnosing the Alzheimer's disease using frequency domain analysis.
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Yamada T, Kikuchi M, Yagihashi D, Yamakawa S, Ishizu H, Shiina T. Screening test for radioactivity of self-consumption products in Fukushima after the Fukushima Dai-ichi NPP accident in Japan. Appl Radiat Isot 2017; 126:93-99. [DOI: 10.1016/j.apradiso.2017.02.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 12/21/2016] [Accepted: 02/11/2017] [Indexed: 11/27/2022]
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Matsuki E, Kohashi S, Ishida A, Murakami H, Kikuchi M. REAL-LIFE USE OF BENDAMUSTINE FOR B-CELL NON-HODGKIN LYMPHOMA IN A COMMUNITY HOSPITAL IN JAPAN-RETREATMENT WITH BENDAMUSTINE IS SAFE AND FEASIBLE. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_196] [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: 11/09/2022]
Affiliation(s)
- E. Matsuki
- Department of Medicine; Tachikawa Hospital; Tokyo Japan
| | - S. Kohashi
- Department of Medicine; Tachikawa Hospital; Tokyo Japan
| | - A. Ishida
- Department of Medicine; Tachikawa Hospital; Tokyo Japan
| | - H. Murakami
- Department of Medicine; Tachikawa Hospital; Tokyo Japan
| | - M. Kikuchi
- Department of Medicine; Tachikawa Hospital; Tokyo Japan
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40
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Nakagawa Y, Ikeda M, Ando T, Tasaki M, Saito K, Takahashi K, Aikawa A, Kikuchi M, Akazawa K, Tomita Y. Re-evaluating Cut-off Points for the Expansion of Deceased Donor Criteria for Kidney Transplantation in Japan. Transplant Proc 2017; 49:10-15. [PMID: 28104114 DOI: 10.1016/j.transproceed.2016.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND A shortage of donors poses a serious problem for organ transplantation around the world. In response, the concept of the expanded criteria donor (ECD) has been defined to include donors with traditionally less favorable characteristics. That definition has now been accepted and is being applied in kidney transplantation in the United States and Europe. However, the ECD has not yet been defined for deceased donor kidney transplantation in Japan. PATIENTS AND METHODS We analyzed data on graft survival and relevant risk factors in patients who received deceased donor kidney transplants through the East Japan Branch of the Japan Organ Transplant network (n = 1051). Recipients were divided into two groups: the standard-function group (estimated glomerular filtration rate [eGFR] ≥20 mL/min/1.73 m2; n = 906) and the poor-function group (eGFR <20 mL/min/1.73 m2; n = 145; Cox proportional hazards regression analysis; P < .0001). RESULTS The 10-year survival rate was significantly lower in the poor-function group than in the standard-function group (85.5% vs 22.5%; P < .0001). The two groups differed significantly in recipient and donor risk for graft failure. Recipient risk factors were length of time on dialysis before renal transplantation and incidence of acute rejection after transplantation. Donor risk factors were donor category (heart death), age, history of hypertension, presence of cerebrovascular disease, mean urine output, and donor creatinine level immediately before donor nephrectomy, total ischemic time, and warm ischemic time. CONCLUSION Data from deceased donor transplantation should be analyzed in depth to determine which factors influence renal function after transplantation. In addition, ECD standards should be reconsidered for use in a Japanese context.
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Affiliation(s)
- Y Nakagawa
- Division of Urology, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
| | - M Ikeda
- Division of Urology, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - T Ando
- Division of Urology, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - M Tasaki
- Division of Urology, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - K Saito
- Division of Urology, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | | | - A Aikawa
- Japan Organ Transplant Network, Tokyo, Japan
| | - M Kikuchi
- Japan Organ Transplant Network, Tokyo, Japan
| | - K Akazawa
- Department of Medical Informatics, Niigata University, Niigata, Japan
| | - Y Tomita
- Division of Urology, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
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Kamada Y, Fujita T, Ishida S, Kikuchi M, Ide S, Takizuka T, Shirai H, Koide Y, Fukuda T, Hosogane N, Tsuchiya K, Hatae T, Takenaga H, Sato M, Nakamura H, Naito O, Asakura N, Kubo H, Higashijima S, Miura Y, Yoshino R, Shimizu K, Ozeki T, Hirayama T, Mori M, Sakamoto Y, Kawano Y, Isayama A, Ushigusa K, Ikeda Y, Kimura H, Fujii T, Imai T, Nagami M, Takeji S, Oikawa T, Suzuki T, Nakano T, Oyama N, Sakurai S, Konoshima S, Sugie T, Tobita K, Kondoh T, Tamai H, Neyatani Y, Sakasai A, Kusama Y, Itami K, Shimada M, Ninomiya H, Urano H. Fusion Plasma Performance and Confinement Studies on JT-60 and JT-60U. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a227] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Kamada
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fujita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Ishida
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Kikuchi
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Ide
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Takizuka
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Shirai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Koide
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fukuda
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Hosogane
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Tsuchiya
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Hatae
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Takenaga
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Nakamura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - O. Naito
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Asakura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Kubo
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Higashijima
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Miura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - R. Yoshino
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Shimizu
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Ozeki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Hirayama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Mori
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Sakamoto
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Kawano
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Ushigusa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Ikeda
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Kimura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fujii
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Imai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Nagami
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Takeji
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Oikawa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Suzuki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Nakano
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Oyama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Sakurai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Konoshima
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Sugie
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Tobita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Kondoh
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Tamai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Neyatani
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - A. Sakasai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Itami
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Shimada
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Ninomiya
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
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Affiliation(s)
- M. Kikuchi
- Japan Atomic Energy Agency, Mukoyama 801-1, Naka, Ibaraki 311-0193, Japan
| | - D. J. Campbell
- ITER Organization, Route de Vinon sur Verdon, F-13115 St Paul lez Durance, France
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Ushigusa K, Ide S, Oikawa T, Suzuki T, Kamada Y, Fujita T, Ikeda Y, Naito O, Matsuoka M, Kondoh T, Isayama A, Seki M, Imai T, Sakamoto K, Umeda N, Hamamatsu K, Fujii T, Uehara K, Yamamoto T, Miura Y, Kikuchi M, Kuriyama M, Ninomiy H. Noninductive Current Drive and Steady-State Operation in JT-60U. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a228] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Ushigusa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Ide
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Oikawa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Suzuki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Kamada
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Fujita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Ikeda
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - O. Naito
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - M. Matsuoka
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Kondoh
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - M. Seki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Imai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - K. Sakamoto
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - N. Umeda
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - K. Hamamatsu
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Fujii
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - K. Uehara
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Yamamoto
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Miura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - M. Kikuchi
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - M. Kuriyama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - H. Ninomiy
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, 801-1 Mukoyama, Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
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Ke XD, Shen S, Song LJ, Yu CX, Kikuchi M, Hirayama K, Gao H, Wang J, Yin X, Yao Y, Liu Q, Zhou W. Characterization of Schistosoma japonicum CP1412 protein as a novel member of the ribonuclease T2 molecule family with immune regulatory function. Parasit Vectors 2017; 10:89. [PMID: 28212670 PMCID: PMC5316207 DOI: 10.1186/s13071-016-1962-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 08/09/2016] [Accepted: 12/29/2016] [Indexed: 01/05/2023] Open
Abstract
Background Schistosome infection typically induces a polarized Th2 type host immune response. As egg antigen molecules play key roles in this immunoregulatory process, clarifying their functions in schistosomiasis would facilitate the development of vaccine and immunotherapeutic methods. Schistosoma japonicum (Sj) CP1412 (GenBank: AY57074.1) has been identified as a new member of the RNase T2 family with immune regulatory functions. Methods The expression plasmid Sj CP1412-pET28a was constructed and transformed into bacteria for production of recombinant Sj CP1412 protein (rSj CP1412) via IPTG induction. The RNase activity of Sj CP1412 was predicted by bioinformatic analysis and confirmed by digesting the yeast tRNA with rSj CP1412.C57BL/6j mice were immunized with rSj CP1412, and its immune regulatory effects in vivo and in vitro were investigated. Meanwhile, the relationship between the RNase activity of Sj CP1412 and its immune regulation was observed. Results Sj CP1412 was confirmed as a novel RNase T2 family protein with RNase activity. Immunoblotting and RT-PCR analyses demonstrated Sj CP1412 as a protein exclusively secreted/excreted from eggs, but not cercariae and adult worms. Stimulating RAW264.7 macrophages with rSj CP1412 raised the expression of CD206, Arg-1 and IL-10, which are related to M2 type macrophage differentiation. Stimulating dendritic cells (DCs) with rSjCP1412 failed to induce their maturation, and the recombinant protein also inhibited LPS-stimulated DC maturation. Depletion of Sj CP1412 from soluble egg antigen (SEA) impaired the ability of SEA to induce M2 type polarization of RAW264.7 macrophages. Immunizing mice with rSj CP1412 induced high antibody titers, increased serum IL-4 and TGF-β levels and splenic CD4 + CD25 + Foxp3 + T cells, downregulated serum IFN-γ levels and alleviated the egg granuloma pathology of schistosome infection. In vitro stimulation by rSj CP1412 significantly increased CD4 + CD25 + Foxp3 + T cell numbers in splenocytes of healthy mice. The rSj CP1412 protein with RNase activity inactivated by DEPC failed to induce M2 surface marker CD206 expression in RAW264.7 macrophages. Conclusions The Sj CP1412 protein expressed specifically in S. japonicum eggs is a novel member of the RNase T2 family. Similar to Omega-1 of Schistosoma mansoni, the Sj CP1412 protein drives polarization of the host Th2 immune response, which is dependent on its RNase activity. These data provide new evidence towards understanding the immune regulatory role of RNase T2 family proteins during schistosome infection. Electronic supplementary material The online version of this article (doi:10.1186/s13071-016-1962-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xue-Dan Ke
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China
| | - Shuang Shen
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China.,Medical College, Jiangnan University, Wuxi, 214122, China.,Public Health Research Center, Jiangnan University, Wuxi, 214122, People's Republic of China.,Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, People's Republic of China
| | - Li-Jun Song
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China
| | - Chuan-Xin Yu
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China. .,Medical College, Jiangnan University, Wuxi, 214122, China. .,Public Health Research Center, Jiangnan University, Wuxi, 214122, People's Republic of China.
| | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Hong Gao
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China.,Department of Pathology, Nanjing Drum Tower Hospital, Nanjing, 210003, People's Republic of China
| | - Jie Wang
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China
| | - Xuren Yin
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China
| | - Yuan Yao
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China
| | - Qian Liu
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China
| | - Wei Zhou
- Key Laboratory on Technology for Parasitic Disease Prevention and Control, Ministry of Health; Jiangsu Provincial Key Laboratory on Technology for Parasite and Vector Control, Jiangsu Institute of Parasitic Diseases, Wuxi, 214064, People's Republic of China
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Nakashima T, Ohashi Y, Oki S, Saito R, Koido K, Ogawa C, Sato N, Seto K, Negishi Y, Kondo N, Kikuchi M, Yokoyama A, Ueno H, Koinuma M, Yachi Y, Terakado H. 349P A retrospective multicenter survey of hepatitis B virus infection (HBV) screening and HBV-DNA monitoring in patients receiving hematopoietic stem cell transplantation and rituximab-based chemotherapy. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00507-x] [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: 11/16/2022] Open
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Nakashima T, Ohashi Y, Oki S, Saito R, Koido K, Ogawa C, Sato N, Seto K, Negishi Y, Kondo N, Kikuchi M, Yokoyama A, Ueno H, Koinuma M, Yachi Y, Terakado H. 349P A retrospective multicenter survey of hepatitis B virus infection (HBV) screening and HBV-DNA monitoring in patients receiving hematopoietic stem cell transplantation and rituximab-based chemotherapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw586.018] [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: 11/12/2022] Open
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Kakoi H, Tozaki T, Kikuchi M, Hirota KI, Nagata SI, Takasu M. P4017 Distribution of Y chromosomal haplotypes in Japanese native horse populations. J Anim Sci 2016. [DOI: 10.2527/jas2016.94supplement486b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tozaki T, Miyake T, Kikuchi M, Kakoi H, Hirota KI, Nagata SI. P6004 Estimation of heritability for fracture in the Thoroughbred racehorse. J Anim Sci 2016. [DOI: 10.2527/jas2016.94supplement4149a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Cherif MS, Mbanefo EC, Shuaibu MN, Kodama Y, Avenido EF, Campos-Alberto E, Mizukami S, Camara F, Helegbe GK, Kikuchi M, Yanagi T, Sasaki H, Huy NT, Karbwang J, Hirayama K. Human-applicable dendrigraft poly-l-lysine-based nanoparticle-coated Plasmodium yoelii-transamidase DNA vaccine is immunogenic and protective as the polyethylenimine-based formulation. J BIOACT COMPAT POL 2015. [DOI: 10.1177/0883911515614011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The objective was to assess the immunoequivalence and protective efficacy of the novel, relatively safe dendrigraft poly-l-lysine-based nanoparticle formulation in comparison to the non-degradable polyethylenimine-based system. Groups of 6-week-old female C57BL/6 mice were immunized three times biweekly. Each mouse received 100 µg of the Plasmodium yoelii GPI8p-transamidase PyTAM formulated with nanoball that consisted of PyTAM/PEI/γ-PGA or PyTAM/DGL/γ-PGA and their respective nanoparticle-coated blank vector controls. Two weeks after the last immunization, the humoral responses and cellular immune response were assessed. The survival and parasitemia were evaluated in each group challenged intraperitoneally with 106 of a lethal strain of P. yoelii 17XL-parasitized red blood cells. Mice immunized with PyTAM/PEI/γ-PGA or PyTAM/DGL/γ-PGA showed similar survival rates, humoral responses and T helper 1 pro-inflammatory cellular immune responses in vivo and ex vivo. In particular, the PyTAM/DGL/γ-PGA formulation showed a significant increase in conventional dendritic cells in the spleen, which were consistently associated with high interleukin-12 production, the driver of the T helper 1 response. We show that the substitution of non-degradable polyethylenimine with the biodegradable dendrigraft poly-l-lysine in the nanoparticle formulation is immunoequivalent and elicits protective immunity against the lethal strain of P. yoelii. Therefore, this new gene-delivery vehicle with a good safety profile presents an exciting prospect for application in vaccination strategies.
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Affiliation(s)
- Mahamoud Sama Cherif
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Faculty of Medicine, Université Gamal Abdel Nasser de Conakry, Conakry, Guinea
| | - Evaristus Chibunna Mbanefo
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Mohammed Nasir Shuaibu
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | - Yukinobu Kodama
- Department of Hospital Pharmacy, Nagasaki University, Nagasaki, Japan
| | - Eleonor Fundan Avenido
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | | | - Shusaku Mizukami
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Facely Camara
- Faculty of Medicine, Université Gamal Abdel Nasser de Conakry, Conakry, Guinea
| | - Gideon Kofi Helegbe
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Mihoko Kikuchi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Tetsuo Yanagi
- National Bio-Resource Project (NBRP), Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Hitoshi Sasaki
- Department of Hospital Pharmacy, Nagasaki University, Nagasaki, Japan
| | - Nguyen Tien Huy
- Department of Clinical Product Development, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Juntra Karbwang
- Department of Clinical Product Development, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
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Vasquez Velasquez C, Roman AD, Lan NTP, Huy NT, Mercado ES, Espino FE, Perez MLM, Huong VTQ, Thuy TT, Tham VD, Nga CTP, Ha TTN, Bilar JM, Bajaro JDP, Baello BQ, Kikuchi M, Yasunami M, Morita K, Watanabe N, Karbwang J, Hirayama K. Alpha tryptase allele of Tryptase 1 (TPSAB1) gene associated with Dengue Hemorrhagic Fever (DHF) and Dengue Shock Syndrome (DSS) in Vietnam and Philippines. Hum Immunol 2015; 76:318-23. [DOI: 10.1016/j.humimm.2015.03.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 03/03/2015] [Accepted: 03/11/2015] [Indexed: 01/19/2023]
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