1
|
Kusumi A, Nishiyama S, Tao R. Three-dimensional fruit growth analysis clarifies developmental mechanisms underlying complex shape diversity in persimmon fruit. J Exp Bot 2024; 75:1919-1933. [PMID: 37988572 DOI: 10.1093/jxb/erad472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/20/2023] [Indexed: 11/23/2023]
Abstract
The determination of fruit size and shape are of considerable interest in horticulture and developmental biology. Fruit typically exhibits three-dimensional structures characterized by geometric features that are dependent on the genotype. Although minor developmental variations have been recognized, few studies have fully visualized and measured these variations throughout fruit growth. Here, a high-resolution 3D scanner was used to investigate the fruit development of 51 persimmon (Diospyros kaki) cultivars with various complex shapes. We obtained 2380 3D models that fully represented fruit appearance, and enabled precise and automated measurements of shape features throughout fruit development, including horizontal and vertical grooves, length-to-width ratio, and roundness. The 3D fruit model analysis identified key stages that determined the shape attributes at maturity. Typically, genetic diversity was found in vertical groove development, and these grooves could be filled by tissue expansion in the carpel fusion zone during fruit development. In addition, transcriptome analysis of fruit tissues from groove and non-groove tissues revealed gene co-expression networks that were highly associated with groove depth variation. The presence of YABBY homologs was most closely associated with groove depth and indicated the possibility that this pathway is a key molecular contributor to vertical groove depth variation. Overall, our results revealed deterministic patterns of complex shape traits in persimmon fruit and showed that different growth patterns among tissues are the main factor contributing to the shape of both vertical and horizontal grooves.
Collapse
Affiliation(s)
- Akane Kusumi
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Soichiro Nishiyama
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| |
Collapse
|
2
|
Sun P, Nishiyama S, Li H, Mai Y, Han W, Suo Y, Liang C, Du H, Diao S, Wang Y, Yuan J, Zhang Y, Tao R, Li F, Fu J. Genetic insights into the dissolution of dioecy in diploid persimmon Diospyros oleifera Cheng. BMC Plant Biol 2023; 23:606. [PMID: 38030968 PMCID: PMC10688080 DOI: 10.1186/s12870-023-04610-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/15/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND Dioecy, a sexual system of single-sexual (gynoecious/androecious) individuals, is rare in flowering plants. This rarity may be a result of the frequent transition from dioecy into systems with co-sexual individuals. RESULTS In this study, co-sexual expression (monoecy and hermaphroditic development), previously thought to be polyploid-specific in Diospyros species, was identified in the diploid D. oleifeara historically. We characterized potential genetic mechanisms that underlie the dissolution of dioecy to monoecy and andro(gyno)monoecy, based on multiscale genome-wide investigations of 150 accessions of Diospyros oleifera. We found all co-sexual plants, including monoecious and andro(gyno)monoecious individuals, possessed the male determinant gene OGI, implying the presence of genetic factors controlling gynoecia development in genetically male D. oleifera. Importantly, discrepancies in the OGI/MeGI module were found in diploid monoecious D. oleifera compared with polyploid monoecious D. kaki, including no Kali insertion on the promoter of OGI, no different abundance of smRNAs targeting MeGI (a counterpart of OGI), and no different expression of MeGI between female and male floral buds. On the contrary, in both single- and co-sexual plants, female function was expressed in the presence of a genome-wide decrease in methylation levels, along with sexually distinct regulatory networks of smRNAs and their targets. Furthermore, a genome-wide association study (GWAS) identified a genomic region and a DUF247 gene cluster strongly associated with the monoecious phenotype and several regions that may contribute to andromonoecy. CONCLUSIONS Collectively, our findings demonstrate stable breakdown of the dioecious system in D. oleifera, presumably also a result of genomic features of the Y-linked region.
Collapse
Affiliation(s)
- Peng Sun
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Soichiro Nishiyama
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-Ku, Kyoto, 606-8502, Japan
| | - Huawei Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Yini Mai
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Weijuan Han
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Yujing Suo
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Chengzhi Liang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Huilong Du
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Songfeng Diao
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Yiru Wang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Jiaying Yuan
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Yue Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-Ku, Kyoto, 606-8502, Japan.
| | - Fangdong Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China.
| | - Jianmin Fu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Non-Timber Forest Germplasm Enhancement & Utilization of State Administration of Forestry and Grassland, Research Institute of Non-Timber Forestry, Chinese Academy of Forestry, Zhengzhou, 450003, China.
| |
Collapse
|
3
|
Nishiyama S, Sato K, Tao R. Integer programming for selecting set of informative markers in paternity inference. BMC Bioinformatics 2022; 23:265. [PMID: 35804290 PMCID: PMC9264695 DOI: 10.1186/s12859-022-04801-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/09/2022] [Indexed: 11/24/2022] Open
Abstract
Background Parentage information is fundamental to various life sciences. Recent advances in sequencing technologies have made it possible to accurately infer parentage even in non-model species. The optimization of sets of genome-wide markers is valuable for cost-effective applications but requires extremely large amounts of computation, which presses for the development of new efficient algorithms. Results Here, for a closed half-sib population, we generalized the process of marker loci selection as a binary integer programming problem. The proposed systematic formulation considered marker localization and the family structure of the potential parental population, resulting in an accurate assignment with a small set of markers. We also proposed an efficient heuristic approach, which effectively improved the number of markers, localization, and tolerance to missing data of the set. Applying this method to the actual genotypes of apple (Malus × domestica) germplasm, we identified a set of 34 SNP markers that distinguished 300 potential parents crossed to a particular cultivar with a greater than 99% accuracy. Conclusions We present a novel approach for selecting informative markers based on binary integer programming. Since the data generated by high-throughput sequencing technology far exceeds the requirement for parentage assignment, a combination of the systematic marker selection with targeted SNP genotyping, such as KASP, allows flexibly enlarging the analysis up to a scale that has been unrealistic in various species. The method developed in this study can be directly applied to unsolved large-scale problems in breeding, reproduction, and ecological research, and is expected to lead to novel knowledge in various biological fields. The implementation is available at https://github.com/SoNishiyama/IP-SIMPAT. Supplementary Information The online version contains supplementary material available at 10.1186/s12859-022-04801-z.
Collapse
Affiliation(s)
| | - Kengo Sato
- School of System Design and Technology, Tokyo Denki University, Tokyo, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| |
Collapse
|
4
|
Saito Y, Otaki Y, Watanabe T, Wanezaki M, Kutsuzawa D, Tamura H, Kato S, Nishiyama S, Arimoto T, Takahashi H, Watanabe M. Effect of endothelial nitric oxide synthase gene polymorphism on cardiovascular death and nonfatal myocardial infarction in Japanese general population. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2461] [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
Introduction
Single nucleotide polymorphisms (SNP) of endothelial nitric oxide synthase (NOS3) have been reported to be associated with diabetes mellitus and myocardial infarction. However, few reports have prospectively investigated the effects of NOS3 SNP on cardiovascular death and nonfatal myocardial infarction.
Purpose
The purpose of this study was to investigate the impact of NOS3 SNP on cardiovascular death and the development of nonfatal myocardial infarction.
Methods
This prospective cohort study included 2,752 subjects (aged ≥40) who participated in a community based health checkup. We genotyped two SNPs within NOS3 (rs1808593, rs1799983). All subjects were prospectively followed during the median follow-up period of 15.4 years with the end point of cardiovascular death and nonfatal myocardial infarction.
Results
The homozygous G-allele (GG), heterozygous (GT), and homozygous T-allele (TT) carriers of rs1808593 were identified in 60 (2%), 706 (26%), and 1,986 (72%) subjects, respectively. Kaplan-Meier analysis demonstrated that homozygous G-allele carriers of rs1808593 had the greater risk than those without. Multivariate Cox proportional hazard regression analysis revealed that the homozygous G allele of rs1808593 was associated with cardiovascular death and the development of nonfatal myocardial infarction after adjusting for confounding risk factors.
Conclusions
NOS3 gene polymorphism could be a genetic risk factor for cardiovascular death and nonfatal myocardial infarction in the Japanese general population.
Funding Acknowledgement
Type of funding sources: None. Figure 1
Collapse
Affiliation(s)
- Y Saito
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - Y Otaki
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Wanezaki
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - D Kutsuzawa
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tamura
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Kato
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Takahashi
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University School of Medicine, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
5
|
Watanabe K, Watanabe T, Otaki Y, Murase T, Nakamura T, Hashimoto N, Kutsuzawa D, Kato S, Tamura H, Nishiyama S, Takahashi H, Arimoto T, Watanabe M. Gender differences in the impact of plasma xanthine oxidoreductase activity on coronary artery spasm. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1304] [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: 11/12/2022] Open
Abstract
Abstract
Background
It has been reported that decreased nitric oxide bioavailability due to increased reactive oxygen species (ROS) is one of the most important causes of coronary artery spasm (CAS). Xanthine oxidoreductase (XOR) is the rate-limiting enzyme for uric acid (UA) production and plays a pivotal role in generating ROS. It was reported that the gender differences exist in the impact of serum UA levels on cardiovascular risks. We previously demonstrated that increased plasma XOR activity is significantly associated with the incidence of CAS. However, the gender differences in the impact of plasma XOR activity on CAS remain unclear.
Purpose
The aim of this study was to examine the gender differences in the clinical impact of plasma XOR activity on CAS.
Methods
We investigated plasma XOR activity in 132 patients suspected for CAS (male, n=78; female, n=54), and underwent intracoronary acetylcholine provocation test. XOR activity assay was performed using stable isotope-labeled substrate and liquid chromatography-triple quadrupole mass spectrometry. Provoked CAS was defined as total or subtotal occlusion (≥90%) with accompanying symptoms of chest pain and/or ischemic ST-segment changes on the electrocardiogram. We excluded the patients who had significant coronary artery stenosis (≥50%) and/or were taking XOR inhibitors.
Results
Plasma XOR activity was significantly lower in female compared with male patients (30.3 pmol/h/mL, interquartile range (IQR) 22.8–42.7 vs. 51.7 pmol/h/mL, IQR 34.7–101.8; P<0.001). CAS was provoked in 36 male patients and 17 female patients, and they each had significantly higher plasma XOR activity compared with those without, respectively. Multivariate logistic regression analysis showed that plasma XOR activity was independently associated with the incidence of CAS in both genders after adjustment for confounding factors. The optimal cut-off values for predicting CAS were lower in female than those in male patients (52.3 vs. 91.6 pmol/h/mL). Multivariate analysis demonstrated that female patients with high XOR activity (≥52.3 pmol/h/mL; odds ratio [OR] 22.6, P<0.001) exhibited a higher incidence of CAS compared with that in male patients (≥91.6 pmol/h/mL; OR 8.2, P<0.001).
Conclusions
Plasma XOR activity was an independent predictor for the incidence of CAS in both genders. The impact of plasma XOR activity on CAS was stronger in female patients than in male patients.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
Collapse
Affiliation(s)
- K Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - Y Otaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Murase
- Sanwa Kagaku Kenkyusho Co., Ltd., Radioisotope and Chemical Analysis Center, Mie, Japan
| | - T Nakamura
- Sanwa Kagaku Kenkyusho Co., Ltd., Pharmacological Study Group, Pharmaceutical Research Laboratories, Mie, Japan
| | - N Hashimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - D Kutsuzawa
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Kato
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tamura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
6
|
Sun P, Nishiyama S, Asakuma H, Voorrips RE, Fu J, Tao R. Genomics-based discrimination of 2n gamete formation mechanisms in polyploids: a case study in nonaploid Diospyros kaki 'Akiou'. G3 (Bethesda) 2021; 11:6288453. [PMID: 34849809 PMCID: PMC8496294 DOI: 10.1093/g3journal/jkab188] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/24/2021] [Indexed: 11/17/2022]
Abstract
Unreduced gametes (2n gametes), possessing double the haploid genome, whatever ploidy that happens to be, are a common source of ploidy variation in plant populations. First and second division restitution (FDR and SDR) are the dominant mechanisms of 2n gamete production; all else being equal, FDR gametes have a higher degree of heterozygosity, thus they are advantageous in breeding. The discrimination of these mechanisms from the consequence of hybridization is challenging, especially in higher polyploids, and usually requires information on centromere location. In this study, we propose a genotyping-based strategy to uncover the mechanisms of 2n gamete formation in progeny that has a higher ploidy than its parents. Simulation of 2n gamete production revealed that FDR and SDR pathways can be discriminated based on allele transmission patterns alone without information on centromere location. We applied this strategy to study the formation mechanism of a nonaploid Diospyros kaki ‘Akiou', which was bred via hybridization between D. kaki hexaploid cultivars. The result demonstrated that ‘Akiou' was derived from the fertilization of a normal female gamete by a 2n male gamete and that this 2n gamete was produced through FDR. Consequently, the distinct duplex transmission pattern in the FDR gamete enabled us to infer the genomic characteristics of polyploid persimmon. The method could be tested only for the plant being polypoid, which allows for the ability to discriminate causes of 2n gamete formation using allele dosage in progeny, and will be useful in future studies of polyploid genomics.
Collapse
Affiliation(s)
- Peng Sun
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.,Key Laboratory of Non-timber Forest Germplasm Enhancement & Utilization of State Forestry and Grassland Administration, Zhengzhou 450003, China.,Non-timber Forest Research and Development Center, Chinese Academy of Forestry, Zhengzhou 450003, China.,National Innovation Alliance of Persimmon Industry, Zhengzhou 450003, China
| | - Soichiro Nishiyama
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideaki Asakuma
- Fukuoka Agriculture and Forestry Research Center, Chikushino, Fukuoka 818-8549, Japan
| | - Roeland E Voorrips
- Department of Plant Breeding, Wageningen University & Research, Wageningen, the Netherlands
| | - Jianmin Fu
- Key Laboratory of Non-timber Forest Germplasm Enhancement & Utilization of State Forestry and Grassland Administration, Zhengzhou 450003, China.,Non-timber Forest Research and Development Center, Chinese Academy of Forestry, Zhengzhou 450003, China.,National Innovation Alliance of Persimmon Industry, Zhengzhou 450003, China
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| |
Collapse
|
7
|
Nishiyama S, Matsushita MC, Yamane H, Honda C, Okada K, Tamada Y, Moriya S, Tao R. Functional and expressional analyses of apple FLC-like in relation to dormancy progress and flower bud development. Tree Physiol 2021; 41:562-570. [PMID: 31728534 DOI: 10.1093/treephys/tpz111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 09/22/2019] [Indexed: 05/26/2023]
Abstract
We previously identified the FLOWERING LOCUS C (FLC)-like gene, a MADS-box transcription factor gene that belongs to Arabidopsis thaliana L. FLC clade, in apple (Malus $\times$ domestica Borkh.), and its expression in dormant flower buds is positively correlated with cumulative cold exposure. To elucidate the role of the MdFLC-like in the dormancy process and flower development, we first characterized the phenotypes of MdFLC-like overexpressing lines with the Arabidopsis Columbia-0 background. The overexpression of MdFLC-like significantly delayed the bolting date and reduced the plant size, but it did not significantly affect the number of rosette leaves or flower organ formation. Thus, MdFLC-like may affect vegetative growth and development rather than flowering when expressed in Arabidopsis, which is not like Arabidopsis FLC that affects development of flowering. We compared seasonal expression patterns of MdFLC-like in low-chill 'Anna' and high-chill 'Fuji' and 'Tsugaru' apples collected from trees grown in a cold winter region in temperate zone and found an earlier upregulation in 'Anna' compared with 'Fuji' and 'Tsugaru'. Expression patterns were also compared in relation to developmental changes in the flower primordia during the chilling accumulation period. Overall, MdFLC-like was progressively upregulated during flower primordia differentiation and development in autumn to early winter and reached a maximum expression level at around the same time as the genotype-dependent chilling requirements were fulfilled in high-chill cultivars. Thus, we hypothesize MdFLC-like may be upregulated in response to cold exposure and flower primordia development during the progress of endodormancy. Our study also suggests MdFLC-like may have a growth-inhibiting function during the end of endodormancy and ecodormancy when the temperature is low and unfavorable for rapid bud outgrowth.
Collapse
Affiliation(s)
- Soichiro Nishiyama
- Graduate School of Agriculture, Kyoto University, Sakyo-Ku, Kyoto 606-8502, Japan
| | | | - Hisayo Yamane
- Graduate School of Agriculture, Kyoto University, Sakyo-Ku, Kyoto 606-8502, Japan
| | - Chikako Honda
- Graduate School of Agricultural and Life Science, The University of Tokyo, Midori-Cho, Nishitokyo, Tokyo 188-0002, Japan
| | - Kazuma Okada
- Apple Research Station, Institute of Fruit Tree and Tea Science, NARO, Morioka 020-0123, Japan
| | - Yosuke Tamada
- National Institute for Basic Biology, Okazaki 444-8585, Japan
- School of Life Science, Sokendai, Okazaki 444-8585, Japan
| | - Shigeki Moriya
- Apple Research Station, Institute of Fruit Tree and Tea Science, NARO, Morioka 020-0123, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Sakyo-Ku, Kyoto 606-8502, Japan
| |
Collapse
|
8
|
Nagasaka K, Nishiyama S, Fujikawa M, Yamane H, Shirasawa K, Babiker E, Tao R. Genome-Wide Identification of Loci Associated With Phenology-Related Traits and Their Adaptive Variations in a Highbush Blueberry Collection. Front Plant Sci 2021; 12:793679. [PMID: 35126419 PMCID: PMC8814416 DOI: 10.3389/fpls.2021.793679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/07/2021] [Indexed: 05/04/2023]
Abstract
Genetic variation in phenological traits is the key in expanding production areas of crops. Southern highbush blueberry (SHB) is a blueberry cultivar group adapted to warmer climates and has been developed by multiple interspecific hybridizations between elite northern highbush blueberry (NHB) (Vaccinium corymbosum L.) and low-chill Vaccinium species native to the southern United States. In this study, we employed a collection of diverse SHB accessions and performed a genome-wide association study (GWAS) for five phenology-related traits [chilling requirement (CR), flowering date, ripening date, fruit development period, and continuous flowering] using polyploid GWAS models. Phenology-related traits showed higher heritability and larger correlation coefficients between year replications, which resulted in the detection of robust phenotype-genotype association peaks. Notably, a single association peak for the CR was detected on Chromosome 4. Comparison of genotypes at the GWAS peaks between NHB and SHB revealed the putative introgression of low-chill and late-flowering alleles into the highbush genetic pool. Our results provide basic insights into the diversity of phenological traits in blueberry and the genetic establishment of current highbush cultivar groups.
Collapse
Affiliation(s)
- Kyoka Nagasaka
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Soichiro Nishiyama
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
- *Correspondence: Soichiro Nishiyama,
| | - Mao Fujikawa
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hisayo Yamane
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | | | - Ebrahiem Babiker
- Thad Cochran Southern Horticultural Laboratory, United States Department of Agriculture, Agricultural Research Service, Poplarville, MS, United States
- Ebrahiem Babiker,
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| |
Collapse
|
9
|
Aono T, Watanabe T, Toshima T, Takahashi T, Otaki Y, Wanezaki M, Kutsuzawa D, Kato S, Tamura H, Nishiyama S, Takahashi H, Arimoto T, Shishido T, Watanabe M. Elevated serum carboxy-terminal telopeptide of type I collagen predicts clinical outcome in patients with acute coronary syndrome who underwent percutaneous coronary intervention. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1605] [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
Introduction
Serum carboxy-terminal telopeptide of type I collagen (I-CTP) is a collagen degradation product of type I collagen in the extracellular matrix of the heart, blood vessels, and bone. The serum levels of I-CTP were reportedly a predictive marker for cardiac remodeling after acute myocardial infarction. However, it remains unclear whether I-CTP can predict poor clinical outcome in patient with acute coronary syndrome (ACS).
Purpose
The aim of this study was to investigate the association between serum levels of I-CTP and clinical outcome in patients with ACS.
Methods
Serum levels of I-CTP were measured in 200 patients with ACS who underwent percutaneous coronary intervention (PCI). All patients were prospectively followed during the median follow-up period of 1312 days with the end point of major adverse cardiovascular events (MACE). We divided the patients into tertiles according to serum I-CTP level: low I-CTP group (≤4.4 ng/ml, n=72), middle I-CTP group (4.4–6.4 ng/ml, n=65), and high I-CTP group (≥6.5 ng/ml, n=63).
Results
There were 44 MACE, including 24 all-cause death and 9 rehospitalization due to heart failure. I-CTP was significantly higher in patients with MACE than those without (4.90 [interquartile range (IQR): 3.80–6.38] ng/ml vs. 6.65 [IQR: 5.00–10.08] ng/ml, p<0.001). Kaplan-Meier analysis demonstrated that patients in the highest tertile of I-CTP had the greatest risk of MACE. In a univariate analysis, age, Albumin, estimated glomerular filtration rate (eGFR), low-density lipoprotein cholesterol (LDL-C), brain natriuretic peptide (BNP), high-sensitivity C-reactive protein (hsCRP) and I-CTP were significant predictors of MACE. A multivariate Cox proportional hazard analysis showed that the high I-CTP group had a higher risk for MACE (Hazard ratio [HR] 2.6, p=0.049) compared with the low I-CTP group after adjusting for confounding factors.
Conclusions
I-CTP was significantly associated with MACE, suggesting that I-CTP could be a reliable marker for clinical outcome in patients with ACS who underwent PCI.
Figure 1
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- T Aono
- Yamagata University, Yamagata, Japan
| | | | - T Toshima
- Yamagata University, Yamagata, Japan
| | | | - Y Otaki
- Yamagata University, Yamagata, Japan
| | | | | | - S Kato
- Yamagata University, Yamagata, Japan
| | - H Tamura
- Yamagata University, Yamagata, Japan
| | | | | | - T Arimoto
- Yamagata University, Yamagata, Japan
| | | | | |
Collapse
|
10
|
Goto J, Watanabe T, Kobayashi Y, Toshima T, Wanezaki M, Nishiyama S, Otaki Y, Kutsuzawa D, Kato S, Tamura H, Arimoto T, Takahashi H, Shishido T, Kubota I, Watanabe M. Impact of percutaneous coronary intervention on short and long-term prognosis of elderly patients with acute myocardial infarction from 2010 to 2017 in Japanese population. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1625] [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
Advances in therapies have successfully decreased short-term mortality in patients with acute myocardial infarction (AMI). Although aging population is recently increasing in developed countries, there are few reports about the association between prevalence of percutaneous coronary intervention (PCI) and long-term prognosis in elderly patients with AMI in Japan.
Purpose
The aim of this study was to clarify the prevalence of PCI and the impact of PCI on short and long-term prognosis of elderly patients with AMI.
Methods and results
We investigated the prevalence of PCI and short-term mortality in 4,109 patients with AMI who were registered in Yamagata AMI Registry from 2010 to 2017. Long-term mortality was investigated using data from death certification in July 2019. We divided patients with AMI into three age groups (group 1, <65 years old; group 2, 65–79 years old; and group 3, ≥80 years old). Short-term mortality within 30 days was 6.5%, 12.1%, and 28.6%, respectively. Also, prevalence of PCI was 88.0%, 84.7%, and 62.7%, respectively. Multivariate analysis revealed that age, PCI, and severity of Killip classification were significantly associated with short-term mortality after adjustment for confound factors in group 3. Since the prevalence of PCI in group 3 was the lowest among three groups, the cause of PCI not being executed was investigated in 1,429 patients aged ≥80 years old. Elderly patients who didn't undergo PCI was older, more women, and had higher prevalence of chronic kidney disease, previous stroke, and severe Killip classification. Multivariate analysis revealed that age and Killip III/IV were significantly associated with non-executed PCI after adjustment for confound factors. Next, we investigated impact of PCI on long-term mortality in elderly patients who escaped acute death. Multivariate Cox hazard analysis revealed that PCI was associated with lower mortality after adjustment for confound factors (adjusted hazard ratio 2.47, 95% CI: 1.47–4.06; p=0.0008).
Conclusion
Lower prevalence of PCI and higher short-term mortality were observed in elderly patients with AMI aged ≥80 years old. PCI ameliorated long-term mortality as well as short-term mortality in elderly patients with AMI.
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- J Goto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - Y Kobayashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Toshima
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Wanezaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - Y Otaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - D Kutsuzawa
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Kato
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tamura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Shishido
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - I Kubota
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
11
|
Yoshii I, Nishiyama S. SAT0486 BONE MINERAL DENSITY IN PATIENT WITH SHRUNKEN PORE SYNDROME IS SIGNIFICANTLY LOWER THAN THAT IN PATIENT WITHOUT, HOWEVER SERUM PARATHYROID HORMONE DOES NOT CORRELATED MUCH WITH IT. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Shrunken pore syndrome (SPS), defined by cystatin C (CysC) based estimated glomerular filtration rate (eGFRCysC) < 60% of creatinine (Cr) based eGFR (eGFRCr) in the absence of extrarenal influences on the plasma levels of CysC or Cr, is associated with a higher increase in mortality. SPS often causes reduced bone mineral density (BMD).Objectives:In this study, relationship between BMD and SPS was investigated.Methods:Patient with rheumatic diseases who were measured BMD with dual-energy X-ray absorptiometry and at the same time, CysC and Cr were also measured, were picked up. eGFRCysCand eGFRCr,were calculated, and a patient group with SPS were recruited. Relationship between serum PTH and CysC, or Cr was evaluated with univariate linear regression analysis. Between the SPS groups and the other patient group, statistical difference was evaluated regarding sex, age, Cr, CysC, serum Cr-CysC ratio (Cr/CysC), serum calcium corrected with albumin (Ca), creatinine phosphokinase (CPK), parathyroid hormone (PTH), eGFRCysC, eGFRCr,, BMD in the lumbar spine (BMD_LS) and femoral neck (BMD_FN) were evaluated with Mann-Whitney U-test. Relationship between BMD for each bone and sex, age, CPK, PTH, Cr/CysC, eGFRCysC, and being SPS was statistically evaluated with multivariate linear regression analysis. Furtherly, sensitivity and specificity regarding being SPS for T-score < -2.5, that is defined as diagnosis criteria of osteoporosis calculated from BMD, was evaluated with chi square test.Results:A total of 819 participants with 75 males and 744 females joined. Patient with SPS counted 31 and without SPS counted 782. Underlying diseases are shown in Table 1. Average age, CysC, Cr, PTH, eGFRCr,and eGFRCysCwere 76.5, 1.18, 0.76, 42.1, 66.2 and 59.0, respectively. PTH significantly correlated with CyC (p=0.015), but not correlated with Cr (p=0.079). SPS demonstrated significantly higher ratio for being male (P<1.0x10-10), higher age (p=1.07x10-3), higher titer of CysC (p=5.5x10-10), lower titer of CPK (p=1.5x10-4), lower Cr/CysC (P<1.0x10-10), lower eGFRCysC(p=2.8x10-7), BMD_LS (P<1.0x10-10) and BMD_FN (P<1.0x10-10), however no significant difference demonstrated for Cr (2.4x10-1), PTH (p=1.7x10-1) and Ca (p=6.3x10-1). BMD_LS demonstrated significant positive correlation with CPK (p=2.6x10-4), and negative correlation with being female (p=4.9x10-7), age (p=2.1x10-3), PTH (p=2.2x10-2), eGFRCysC(p=2.5x10-9) and being SPS (p=4.9x10-3), while BMD-FN demonstrated significant positive correlation with Cr/CysC (p=7.3x10-4), and negative correlation with being female (p=1.5x10-6), age (p=4.9x10-8) and being SPS (7.3x10-3). Sensitivity and specificity of T-score < -2.5 in the LS regarding SPS was 50.0% and 74.0% (p=6.9x10-3), while in the FN 67.9% and 61.7% (p=1.7x10-3), respectively.Table 1.Number of patients who were picked up in the study Abbreviations: RA, rheumatoid arthritis; PsA, psoriatic arthritis; AJA, Sjoren Syndrome; SLE, systemic lupus erythematosus; PPP, pustulosis palmaris et plantaris; AS, ankylosing spondylitis; SSc, systemic sclerosis; UA, ulcerative colitis; PM/DM, polymyositis/dermatomyositis; MCTD, mixed connective tissue disease; FMF, Familial Medditeranean fever; PAN, polyarteritis nodosa.DiseasesNumber of patientRA512PsA110SJS67SLE66PPP17AS16SSc13UA11Behcet8PM/DM3MCTD2FMF2PAN1total828Conclusion:These results suggested that SPS has serious potential risk of osteoporosis. BMD_LS loss may correlate elevation of PTH due to filtration disorder, however BMD_FN loss is not affected. Split of Cr and CysC is more important.Disclosure of Interests:None declared
Collapse
|
12
|
Horie R, Horigane K, Nishiyama S, Akimitsu M, Kobayashi K, Onari S, Kambe T, Kubozono Y, Akimitsu J. Superconductivity in 5d transition metal Laves phase SrIr 2. J Phys Condens Matter 2020; 32:175703. [PMID: 31923904 DOI: 10.1088/1361-648x/ab6a2e] [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] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report here the superconducting properties of a Laves phase superconductor SrIr2, which has a cubic MgCu2 structure. SrIr2 is a type-II superconductor, with a T c of 5.9 K. The estimated superconducting parameters of lower critical field µ 0 H c1 and upper critical field µ 0 H c2, coherence length ξ(0), penetration depth λ(0) and Ginzburg-Landau (GL) parameter κ(0) are approximately µ 0 H c1 = 101 Oe, µ 0 H c2(0) = 5.9 T, ξ(0) = 7.47 nm, λ(0) = 237 nm, and κ(0) = 31.7, respectively. The specific-heat data indicate that SrIr2 is a strong-coupling superconductor because the value of ΔC/γT c is approximately 1.71, which is larger than the value of 1.43 that is expected from the BCS theory. The physical properties obtained in this study are explained well by theoretical calculations including spin-orbit coupling (SOC). This result indicates that the physical properties of SrIr2 are strongly affected by the presence of SOC.
Collapse
Affiliation(s)
- R Horie
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Hees A, Do T, Roberts BM, Ghez AM, Nishiyama S, Bentley RO, Gautam AK, Jia S, Kara T, Lu JR, Saida H, Sakai S, Takahashi M, Takamori Y. Search for a Variation of the Fine Structure Constant around the Supermassive Black Hole in Our Galactic Center. Phys Rev Lett 2020; 124:081101. [PMID: 32167338 DOI: 10.1103/physrevlett.124.081101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
Searching for space-time variations of the constants of Nature is a promising way to search for new physics beyond general relativity and the standard model motivated by unification theories and models of dark matter and dark energy. We propose a new way to search for a variation of the fine-structure constant using measurements of late-type evolved giant stars from the S star cluster orbiting the supermassive black hole in our Galactic Center. A measurement of the difference between distinct absorption lines (with different sensitivity to the fine structure constant) from a star leads to a direct estimate of a variation of the fine structure constant between the star's location and Earth. Using spectroscopic measurements of five stars, we obtain a constraint on the relative variation of the fine structure constant below 10^{-5}. This is the first time a varying constant of nature is searched for around a black hole and in a high gravitational potential. This analysis shows new ways the monitoring of stars in the Galactic Center can be used to probe fundamental physics.
Collapse
Affiliation(s)
- A Hees
- SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, LNE, 61 avenue de l'Observatoire 75014 Paris, France
| | - T Do
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - B M Roberts
- SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, LNE, 61 avenue de l'Observatoire 75014 Paris, France
- School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - A M Ghez
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - S Nishiyama
- Miyagi University of Education, 149 Aramaki-aza-aoba, Aoba-ku, Sendai, Miyagi 980-0845, Japan
| | - R O Bentley
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - A K Gautam
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - S Jia
- Astronomy Department, University of California, Berkeley, California 94720, USA
| | - T Kara
- Miyagi University of Education, 149 Aramaki-aza-aoba, Aoba-ku, Sendai, Miyagi 980-0845, Japan
| | - J R Lu
- Astronomy Department, University of California, Berkeley, California 94720, USA
| | - H Saida
- Daido University, 10-3 Takiharu-cho, Minami-ku, Nagoya, Aichi 457-8530, Japan
| | - S Sakai
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - M Takahashi
- Aichi University of Education, 1 Hirosawa, Igaya-cho, Kariya, Aichi 448-8542, Japan
| | - Y Takamori
- National Institute of Technology, Wakayama College, 77 Noshima, Nada-cho, Gobo, Wakayama 644-0023, Japan
| |
Collapse
|
14
|
Aono T, Watanabe T, Kato S, Tamura H, Nishiyama S, Takahashi H, Arimoto T, Shishido T, Watanabe M. 5950Lymphocyte-to-monocyte ratio could predict adverse clinical outcomes in patients with heart failure with preserved ejection fraction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0100] [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
Heart failure with preserved ejection fraction (HFpEF) is increasing with aging of the population, whereas the mechanisms of HFpEF remain poorly understood. It was reported that systemic inflammation is associated with pathophysiology of HFpEF. Lymphocyte-to-monocyte ratio (LMR) is a marker of systemic inflammation, which predicts clinical outcomes in various cancers. However, the prognostic value of LMR has not yet been elucidated in patients with HFpEF.
Purpose
The aim of this study was to investigate the impact of LMR on clinical outcomes in patients with HFpEF.
Methods and results
We prospectively analyzed 414 consecutive patients with HFpEF. Preserved EF was defined as an EF ≥50%. During a median follow-up period of 740 days, there were 111 major adverse cardiovascular events (MACE). When patients were divided into tertiles according to LMR, Kaplan-Meier analysis demonstrated that the low LMR was associated with the greatest risk for MACE. Multivariate Cox proportional hazard regression analysis showed that the low LMR was significantly associated with MACE after adjustment for confounding factors.
Conclusions
Low LMR could predict poor clinical outcomes in patients with HFpEF. LMR is a feasible marker for predicting MACE in patients with HFpEF.
Collapse
Affiliation(s)
- T Aono
- Yamagata University, Yamagata, Japan
| | | | - S Kato
- Yamagata University, Yamagata, Japan
| | - H Tamura
- Yamagata University, Yamagata, Japan
| | | | | | - T Arimoto
- Yamagata University, Yamagata, Japan
| | | | | |
Collapse
|
15
|
Watanabe K, Watanabe T, Otaki Y, Shishido T, Kato S, Tamura H, Nishiyama S, Takahashi H, Arimoto T, Watanabe M. 129Elevated plasma xanthine oxidoreductase activity predicts cardiovascular events in patients with heart failure with preserved ejection fraction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0045] [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
The pathophysiology of heart failure with preserved ejection fraction (HFpEF) remains poorly understood, although reactive oxygen species (ROS) is reportedly involved in underlying mechanisms. Xanthine oxidoreductase (XOR) is the rate-limiting enzyme of purine metabolism that plays an important role in producing uric acid, and also generates the ROS. However, the impact of plasma XOR activity on the clinical outcomes in patients with HFpEF remains unclear.
Purpose
The aim of this study was to assess whether plasma XOR activity predicts cardiovascular events in patients with HFpEF.
Methods and results
We measured plasma XOR activity in 257 patients with HFpEF. The patients were divided into 3 groups based on XOR activity: low XOR group (<33 pmol/h/mL, n=45), normal XOR group (33 - 120 pmol/h/mL, n=160), and high XOR group (≥120 pmol/h/mL, n=52). During a median follow-up period of 809 days, there were 74 major adverse cardiovascular events (MACEs). Kaplan-Meier analysis demonstrated that the patients with high XOR activity were at greatest risk for MACEs. A multivariate Cox proportional hazard regression analysis showed that high XOR activity was significantly associated with MACEs after adjustment for confounding factors. Furthermore, we divided the patients into 4 groups according to the presence of high XOR activity and/or hyperuricemia. Cox multivariate hazard regression analysis revealed that the patients with high XOR activity were associated with cardiovascular events in patients with HFpEF, regardless of whether hyperuricemia was present or not.
Conclusions
Elevated plasma XOR activity is significantly associated with adverse clinical outcomes in patients with HFpEF. Inhibition of XOR could be a potential therapy for HFpEF.
Collapse
Affiliation(s)
- K Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - Y Otaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Shishido
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Kato
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tamura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
16
|
Watanabe K, Narumi T, Watanabe T, Aono T, Goto J, Sugai T, Toshima T, Kato S, Tamura H, Nishiyama S, Takahashi H, Arimoto T, Shishido T, Watanabe M. P1626MicroRNA-21 deteriorates left ventricular reverse remodeling by promoting cardiac fibrosis in non-ischemic cardiomyopathy. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0385] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Left ventricular reverse remodeling (LVRR) contributes to better outcomes in patients with non-ischemic cardiomyopathy (NICM). It is reported that LVRR is associated with progression of cardiac fibrosis. MicroRNAs (miRs) have emerged as powerful regulators of post-transcriptional gene expression. We focused on miR-21, which plays a key role in pathogenesis of fibrosis in multiple organs. The aim of this study was to clarify the effect of miR-21 on cardiac fibrosis and LVRR in patients with NICM.
Methods
We measured plasma miR-21 levels in 16 patients with NICM. LVRR was defined as increased LVEF by ≥10% and decreased LV end-diastolic diameter index by ≥10% from baseline data after optimal medication treatment at 1-year of follow-up. Further, we examined miR-21 expression and its potential role in cardiac fibrosis induced by transverse aortic constriction (TAC) in mice and angiotensin II (Ang II) stimulation in neonatal rat cardiomyocytes (NRCMs).
Results
There were 12 patients without LVRR and 4 patients with LVRR. Plasma miR-21 levels were significantly higher in patients without LVRR compared with those with LVRR. In TAC mice heart, miR-21 levels were significantly increased and programmed cell death 4 (PDCD4), a main target of miR-21, was decreased. In vitro, miR-21 levels were significantly increased and its upstream transcriptional factor, activator protein 1 (AP-1), was activated by Ang II stimulation in NRCMs. After transfection of miR-21 specific inhibitor, PDCD4 levels were upregulated. Furthermore, AP-1 activity, expression of collagen type I, and α-smooth muscle actin levels were significantly decreased after miR-21 inhibition.
Conclusions
These findings suggested that miR-21/PDCD4/AP-1 feedback loop pathway was involved in LVRR in patients with NICM by promoting cardiac fibrosis. MiR-21 can be the therapeutic target in NICM.
Collapse
Affiliation(s)
- K Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Narumi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Aono
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - J Goto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Sugai
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Toshima
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Kato
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tamura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Shishido
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
17
|
Katoh S, Watanabe T, Arimoto T, Narumi T, Aono T, Goto J, Sugai T, Takahashi T, Tamura H, Nishiyama S, Takahashi H, Shishido T, Watanabe M. P3355Stress-induced left ventricular dyssynchrony predicts future cardiac events in patients with known or suspected coronary artery disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0231] [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
Prognostic value of stress induced left ventricular (LV) dyssynchrony has not been fully understood.
The aim of this study was to evaluate the possible impact between cardiovascular events and stress induced worsening LV dyssynchrony.
Methods and results
One hundred and eighty consecutive subjects with known or suspected coronary artery disease (CAD) (142 men, mean age 68±12 years) underwent both gated myocardial single photon emission computed tomography (SPECT) with 99mTc-sestamibi or tetrofosmin according to a standard same day stress-rest protocol and coronary angiography or coronary computed tomography. The summed difference score (SDS) was calculated in every subjects. LV ejection fraction (EF) and phase Entropy at after stress and rest were determined by cardioREPO software. We determined %ΔEntropy = (stress Entropy - rest Entropy)/rest Entropy x100, as an indicator of stress-induced LV dyssynchrony. In the study population, the mean SDS was 2.7±3.9 and LVEF was 58±16%, stress and rest Entropy were 0.62±0.15 and 0.57±0.13, respectively.
%ΔEntropy was higher in patients with CAD than in those without CAD (3.3±11.5 vs. 10.2±15.0, respectively). Moreover, there was a strict correlation between the presence of CAD and %ΔEntropy, indicator of stress induced LV dyssynchrony (non-CAD vs. CAD and/or 1 vessel disease vs. multivessel disease: 4.3±12.5 vs. 8.8±15.6 vs. 12.7±14.3, respectively. p<0.05)
We examined all study subjects and they were divided into 2 groups by cut off value of the %ΔEntropy constructed with receiver operating characteristic curve (=15.4). Kaplan-Meier analysis revealed that future cardiovascular event rate was significantly higher in %ΔEntropy >15.4 group (20/57) than in %ΔEntropy <15.4 group (24/123) (Log-rank p<0.01). On the other hand, summed stress score and SDS were no significant differences between 2 groups.
However, SDS was higher in patients with future cardiovascular event than in those without cardiovascular event (4.4±5.4 vs. 2.2±3.2, respectively. p=0.001).
Conclusion
In patients with known or suspected CAD, stress-induced worsening LV dyssynchrony may predict the presence of CAD and future cardiac events.
Acknowledgement/Funding
None
Collapse
Affiliation(s)
- S Katoh
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Watanabe
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Arimoto
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Narumi
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Aono
- Yamagata University School of Medicine, Yamagata, Japan
| | - J Goto
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Sugai
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Takahashi
- Yamagata University School of Medicine, Yamagata, Japan
| | - H Tamura
- Yamagata University School of Medicine, Yamagata, Japan
| | - S Nishiyama
- Yamagata University School of Medicine, Yamagata, Japan
| | - H Takahashi
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Shishido
- Yamagata University School of Medicine, Yamagata, Japan
| | - M Watanabe
- Yamagata University School of Medicine, Yamagata, Japan
| |
Collapse
|
18
|
Aono T, Watanabe T, Takahashi T, Kato S, Tamura H, Nishiyama S, Takahashi H, Arimoto T, Shishido T, Watanabe M. 5945Single nucleotide polymorphisms of PAR2 gene is associated with subclinical myocardial damage in the general population. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0095] [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: 11/12/2022] Open
Abstract
Abstract
Introduction
The protease activated receptor (PAR) 2 is a G protein-coupled receptor and expressed in cardiomyocytes, vascular cells, and leukocytes. Experimental studies demonstrated that PAR2 signaling is associated with adverse cardiac remodeling, heart failure, vascular inflammation and atherosclerosis. Recently, we and others demonstrated that subclinical myocardial damage is associated with cardiovascular mortality in general population. However, the impact of single nucleotide polymorphisms (SNPs) of PAR2 gene on subclinical myocardial damage in general population is unclear.
Purpose
The aim of this study was to investigate whether SNPs of PAR2 gene is associated with subclinical myocardial damage in general population.
Methods
The present study included 2,926 apparently healthy subjects (aged ≥40) who participated in a community-based health checkup. We investigated 639 SNPs and measured serum heart-type fatty acid binding protein (H-FABP) as markers of subclinical myocardial damage.
Results
We found the association of SNPs rs616235 within a PAR2 gene with subclinical myocardial damage. The homozygous A-allele (AA), heterozygous (AG), and homozygous G-allele (GG) carriers of rs616235 were identified in 2084 (71%), 791 (27%), and 51 (2%) subjects, respectively. The prevalence rates of subclinical myocardial damage were 29% in AA carriers, 23% in AG carriers, and 18% in GG carriers. Multivariate logistic analysis showed that the homozygous (AA) of rs616235 was independently associated with subclinical myocardial damage (odds ratio: 1.330, 95% confidence interval: 1.077–1.641, P=0.0080) after adjustment for conventional cardiovascular risk factors.
Conclusions
Genetic variant of PAR2 gene was independently associated with subclinical myocardial damage in the general population.
Collapse
Affiliation(s)
- T Aono
- Yamagata University, Yamagata, Japan
| | | | | | - S Kato
- Yamagata University, Yamagata, Japan
| | - H Tamura
- Yamagata University, Yamagata, Japan
| | | | | | - T Arimoto
- Yamagata University, Yamagata, Japan
| | | | | |
Collapse
|
19
|
Hashimoto N, Watanabe T, Tamura H, Tsuchiya H, Wanezaki M, Kato S, Nishiyama S, Arimoto T, Takahashi H, Shishido T, Watanabe M. P2462Left atrial appendage wall velocity evaluated by transthoracic echocardiography is a feasible parameter for predicting cardiac prognosis in patients with heart failure. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0794] [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
It was reported that left atrial (LA) remodeling is occurred in patients with heart failure (HF), and increased LA volume index (LAVI) is a feasible predictor for poor prognosis of HF. It was reported that LA remodeling is associated with LA appendage (LAA) dysfunction. We previously reported that LAA wall motion velocity (LAWV) obtained by transthoracic echocardiography (TTE) can noninvasively evaluate LAA dysfunction. However, it remains to be determined whether LAWV is useful for predicting poor prognosis in patients with HF.
Purpose
We investigated whether LAA dysfunction assessed by LAWV is associated with poor prognosis in patients with HF.
Methods
We performed TTE at discharge in 217 consecutive patients who hospitalized for HF (126 males, 71±13 years) and prospectively followed them up. LAWV was measured using Doppler tissue imaging at the LAA tip from the parasternal short-axis view on TTE imaging.
Results
There were 86 patients with cardiac events including 14 cardiac deaths and 72 rehospitalizations for HF during a median follow-up period of 404 days (interquartile range 168–748 days). LAWV was significantly lower in patients with cardiac events than in those without. LAWV was significantly decreased with advancing left ventricular diastolic dysfunction grade. Kaplan-Meier analysis demonstrated that significantly higher cardiac event rate was observed in patients with low LAWV (log-rank test, P=0.004). Cox multivariate hazard analysis revealed that LAWV was an independent predictor for cardiac events after adjusting for confounding factors (hazard ratio 0.57, 95% confidence interval 0.40–0.82, P<0.05). Further, we categorized the patients into 3 groups based on the median of LAWV and left atrial volume index (LAVI), and Kaplan-Meier analysis showed that patients with both low LAWV and high LAVI had the highest rate of cardiac events among 3 groups (log-rank test, P<0.001; Figure).
Figure 1
Conclusion
LAWV may be a feasible parameter for predicting cardiac prognosis in patients with HF.
Collapse
Affiliation(s)
- N Hashimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tamura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tsuchiya
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Wanezaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Kato
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Shishido
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
20
|
Goto J, Otaki Y, Watanabe T, Aono T, Watanabe K, Toshima T, Kato S, Tamura H, Nishiyama S, Arimoto T, Takahashi H, Shishido T, Kubota I, Watanabe M. P1615HECT-Type Ubiquitin E3 Ligase ITCH attenuates cardiac hypertrophy by suppressing Wnt signaling pathway. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0374] [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
The homologous to the E6-AP carboxyl terminus (HECT)–type ubiquitin E3 ligase ITCH is an enzyme that plays an important role in ubiquitin proteasomal protein degradation. Dishevelled proteins (Dvl1, Dvl2 and Dvl3), which are involved in canonical Wnt/β catenin signaling pathway, play a role in cardiac hypertrophy.
Purpose
The aim of this study was to examine whether ITCH interacts with Dvls and prevents cardiac hypertrophy induced by pressure overload.
Methods and results
We confirmed the protein interaction between ITCH and Dvls in cardiomyocytes. Overexpression of ITCH decreased protein expression levels of Dvls, phospho-GSK3β and β-catenin. Conversely, knockdown of ITCH using small interfering RNA augmented canonical Wnt/β catenin signaling pathway. Thoracic transverse aortic constriction (TAC) was performed in transgenic mice with cardiac-specific overexpression of ITCH (ITCH-Tg) and wild-type (WT) mice. The canonical Wnt/β catenin signaling pathway was inhibited and cardiac hypertrophy was attenuated in ITCH-Tg mice compared with WT mice after TAC.
Overexpression of ITCH in cardiomyocytes
Conclusion
We demonstrated that ITCH targets Dvls for ubiquitin-proteasome degradation in cardiomyocytes and ameliorates cardiac hypertrophy by suppressing canonical Wnt/β catenin signaling pathway.
Collapse
Affiliation(s)
- J Goto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - Y Otaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Aono
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - K Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Toshima
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Kato
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tamura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Shishido
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - I Kubota
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
21
|
Tsuchiya H, Otaki Y, Watanabe T, Yamaura G, Hashimoto N, Wanezaki M, Tamura H, Nishiyama S, Arimoto T, Takahashi H, Shishido T, Kubota I, Watanabe M. P6351Direct comparison of prognostic ability of BNP and NT-proBNP for cardiogenic stroke and clinical outcome in patients with stroke. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6351] [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)
- H Tsuchiya
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - Y Otaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - G Yamaura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - N Hashimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - M Wanezaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - H Tamura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - H Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - T Shishido
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - I Kubota
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan
| |
Collapse
|
22
|
Kinoshita D, Shishido T, Takahashi T, Otaki Y, Narumi T, Nishiyama S, Takahashi H, Arimoto T, Miyamoto T, Watanabe T, Watanabe M. 1209Surface nucleolin involves in the development of pulmonary arterial hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1209] [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: 11/13/2022] Open
Affiliation(s)
- D Kinoshita
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Shishido
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - Y Otaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Narumi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Miyamoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
23
|
Kinoshita D, Shishido T, Takahashi T, Sugai T, Narumi T, Otaki Y, Tamura H, Nishiyama S, Takahashi T, Arimoto T, Miyamoto T, Watanabe T, Watanabe M. P1860Contribution of surface nucleolin to vascular remodeling of pulmonary arterial hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1860] [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: 11/13/2022] Open
Affiliation(s)
- D Kinoshita
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Shishido
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Sugai
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Narumi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - Y Otaki
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - H Tamura
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - S Nishiyama
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Takahashi
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Arimoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Miyamoto
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - T Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| | - M Watanabe
- Yamagata University, Department of Cardiology, Pulmonology, and Nephrology, Yamagata, Japan
| |
Collapse
|
24
|
Nishiyama S, Onoue N, Kono A, Sato A, Yonemori K, Tao R. Characterization of a gene regulatory network underlying astringency loss in persimmon fruit. Planta 2018; 247:733-743. [PMID: 29188374 DOI: 10.1007/s00425-017-2819-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 08/07/2017] [Accepted: 11/22/2017] [Indexed: 05/09/2023]
Abstract
Transcriptome analysis of a persimmon population segregating for an astringency trait in fruit suggested central roles for a limited number of transcriptional regulators in the loss of proanthocyanidin accumulation. Persimmon (Diospyros kaki; 2n = 6x = 90) accumulates a large amount of proanthocyanidins (PAs) in its fruit, resulting in an astringent taste. Persimmon cultivars are classified into four types based on the nature of astringency loss and the amount of PAs at maturity. Pollination constant and non-astringent (PCNA)-type cultivars stop accumulating PAs in the early stages of fruit development and their fruit can be consumed when still firm without the need for artificial deastringency treatments. While the PCNA trait has been shown to be conferred by a recessive allele at a single locus (ASTRINGENCY; AST), the exact genetic determinant remains unidentified. Here, we conducted transcriptome analyses to elucidate the regulatory mechanism underlying this trait using developing fruits of an F1 population segregating for the PCNA trait. Comparisons of the transcriptomes of PCNA and non-PCNA individuals and hierarchical clustering revealed that genes related to the flavonoid pathway and to abiotic stress responses involving light stimulation were expressed coordinately with PA accumulation. Furthermore, coexpression network analyses suggested that three putative transcription factors were central to the PA regulatory network and that at least DkMYB4 and/or DkMYC1, which have been reported to form a protein complex with each other for PA regulation, may have a central role in the differential expression of PA biosynthetic pathway genes between PCNA and non-PCNA.
Collapse
Affiliation(s)
- Soichiro Nishiyama
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Noriyuki Onoue
- Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO), Akitsu, Higashihiroshima, Hiroshima, 739-2494, Japan
| | - Atsushi Kono
- Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO), Akitsu, Higashihiroshima, Hiroshima, 739-2494, Japan
| | - Akihiko Sato
- Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO), Akitsu, Higashihiroshima, Hiroshima, 739-2494, Japan
| | - Keizo Yonemori
- Faculty of Agriculture, Ryukoku University, Seta Oe-cho, Otsu, 520-2194, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan.
| |
Collapse
|
25
|
Takai Y, Misu T, Nishiyama S, Kuroda H, Kaneko K, Ogawa R, Takahashi T, Ichiro N, Suzuki H, Kazuo F, Masashi A. The staging of astrocytopathy in aquaporin 4-igg-positive neuromyelitis optica spectrum disorders. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
26
|
Ogawa R, Nakashima I, Takahashi T, Kaneko K, Akaishi T, Takai Y, Sato D, Nishiyama S, Fujimori J, Misu T, Kuroda H, Ikeda T, Uchibori A, Ohashi T, Fujihara K, Aoki M. Autoimmune encephalitis in patients with anti-myelin oligodendrocyte glycoprotein-antibody. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
27
|
Kaneko K, Sato D, Ogawa R, Akaishi T, Takai Y, Nishiyama S, Takahashi T, Misu T, Kuroda H, Nakashima I, Kazuo F, Aoki M. Efficacy of Interferon-β for myelin oligodendrocyte glycoprotein antibody-positive demyelinating disorder. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
28
|
Watanabe K, Watanabe T, Yamaura G, Wanezaki M, Kutsuzawa D, Iwayama T, Tamura H, Nishiyama S, Takahashi H, Arimoto T, Shishido T, Yamauchi S, Miyamoto T, Kubota I. P6217Myocardial damage markers can risk-stratify aortic aneurysm patients with coronary artery disease. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6217] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
29
|
Takahashi T, Shishido T, Watanabe T, Watanabe K, Sugai T, Toshima T, Nishiyama S, Takahashi H, Arimoto T, Miyamoto T, Kubota I. P4252Relationship between pulse pressure and silent and ongoing myocardial damage in the general population. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4252] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
30
|
Toshima T, Watanabe T, Nishiyama S, Wanezaki M, Tamura H, Arimoto T, Takahashi H, Shishido T, Yamanaka T, Miyamoto T, Konta T, Kubota I. P6487Percutaneous coronary intervention ameliorates short-term mortality even in acute myocardial infarction patients with severe renal dysfunction. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6487] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
31
|
Hashimoto N, Tamura H, Watanabe T, Nishiyama S, Wanezaki M, Yamaura G, Iwayama T, Arimoto T, Takahashi H, Shishido T, Yamanaka T, Miyamoto T, Kubota I. P2412Decreased left atrial appendage wall motion velocity by transthoracic echocardiography is a feasible marker for recurrence of atrial fibrillation after pulmonary vein isolation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2412] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
32
|
Hashimoto S, Fujimori Y, Yamazaki K, Baba T, Nishiyama S, Yamanaka Y, Ebisuda K, Kurihara K, Wakabayashi T, Imai T. P2388Efficay of intracoronary saline injection induced Pd/Pa ratio to evaluate functional significance of coronary artery stenosis assessed by fractional flow reserve. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2388] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
33
|
Nishiyama S, Misu T, Nuriya M, Takano R, Takahashi T, Nakashima I, Yasui M, Itoyama Y, Aoki M, Fujihara K. Complement-dependent and -independent aquaporin 4-antibody-mediated cytotoxicity in human astrocytes: Pathogenetic implications in neuromyelitis optica. Biochem Biophys Rep 2016; 7:45-51. [PMID: 29114578 PMCID: PMC5627508 DOI: 10.1016/j.bbrep.2016.05.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 04/25/2016] [Accepted: 05/17/2016] [Indexed: 11/19/2022] Open
Abstract
Background Neuromyelitis optica (NMO) is an inflammatory disease caused by the aquaporin (AQP)-4-antibody. Pathological studies on NMO have revealed extensive astrocytic damage, as evidenced by the loss of AQP4 and glial fibrillary acidic protein (GFAP), specifically in perivascular regions with immunoglobulin and complement depositions, although other pathological patterns, such as a loss of AQP4 without astrocyte destruction and clasmatodendrosis, have also been observed. Previous studies have shown that complement-dependent antibody-mediated astrocyte lysis is likely a major pathomechanism in NMO. However, there are also data to suggest antibody-mediated astrocyte dysfunction in the absence of complement. Thus, the importance of complement inhibitory proteins in complement-dependent AQP4-antibody-mediated astrocyte lysis in NMO is unclear. In most of the previous studies, the complement and target cells (astrocytes or AQP4-transfected cells) were derived from different species; however, the complement inhibitory proteins that are expressed on the cell surface cannot protect themselves against complement-dependent cytolysis unless the complements and complement inhibitory proteins are from the same species. To resolve these issues, we studied human astrocytes in primary culture treated with AQP4-antibody in the presence or absence of human complement and examined the effect of complement inhibitory proteins using small interfering RNA (siRNA). Methods Purified IgG (10 mg/mL) was obtained from 5 patients with AQP4-antibody-positive NMO, 3 patients with multiple sclerosis (MS), and 3 healthy controls. Confluent human astrocytes transfected with Venus-M1-AQP4-cDNA were incubated with IgG (5% volume). After washing, we cultured the cells with human complements with or without heat inactivation. We observed time-lapse morphological and immunohistochemical changes using a fluorescence microscope. We also evaluated cytotoxicity using a propidium iodide (PI) kit and the lactate dehydrogenase (LDH) assay. Result AQP4-antibody alone caused clustering and degradation followed by endocytosis of membraneous AQP4, thereby resulting in decreased cellular adherence and the shrinkage of astrocytic processes. However, these changes were partially reversed by the removal of IgG in culture. In contrast, following the application of AQP4-antibody and non-heated human complements, the cell bodies and nuclei started to swell. At 3 h, most of the astrocytes had lost mobility and adherence and were eventually destroyed or had swollen and were then destroyed. In addition, the remaining adherent cells were mostly PI-positive, indicating necrosis. Astrocyte lysis caused by rabbit complement occurred much faster than did cell lysis with human complement. However, the cell lysis was significantly enhanced by the transfection of astrocytes with siRNA against human CD55 and CD59, which are major complement inhibitory proteins on the astrocyte membrane. AQP4-antibody-negative IgG in MS or control did not induce such changes. Conclusion Taken together, these findings suggest that both complement-dependent and complement-independent AQP4-antibody-mediated astrocytopathies may operate in NMO, potentially contributing to diverse pathological patterns. Our results also suggest that the effect of complement inhibitory proteins should be considered when evaluating AQP4-antibody-mediated cytotoxicity in AQP4-expressing cells.
Collapse
Affiliation(s)
- S. Nishiyama
- Departments of Neurology Tohoku University Graduate School of Medicine, Sendai, Japan
- Correspondence to: Department of Neurology, Tohoku University Graduate School of Medicine, 1–1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan.Department of Neurology, Tohoku University Graduate School of Medicine1–1 Seiryo-machiAoba-kuSendai980-8574Japan
| | - T. Misu
- Multiple Sclerosis Therapeutics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M. Nuriya
- Department of Pharmacology, School of Medicine, Keio University, Tokyo, Japan
| | - R. Takano
- Departments of Neurology Tohoku University Graduate School of Medicine, Sendai, Japan
| | - T. Takahashi
- Departments of Neurology Tohoku University Graduate School of Medicine, Sendai, Japan
| | - I. Nakashima
- Departments of Neurology Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M. Yasui
- Department of Pharmacology, School of Medicine, Keio University, Tokyo, Japan
| | - Y. Itoyama
- Departments of Neurology Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M. Aoki
- Departments of Neurology Tohoku University Graduate School of Medicine, Sendai, Japan
| | - K. Fujihara
- Multiple Sclerosis Therapeutics, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|
34
|
Tsumori K, Ikeda K, Nakano H, Kisaki M, Geng S, Wada M, Sasaki K, Nishiyama S, Goto M, Serianni G, Agostinetti P, Sartori E, Brombin M, Veltri P, Wimmer C, Nagaoka K, Osakabe M, Takeiri Y, Kaneko O. Negative ion production and beam extraction processes in a large ion source (invited). Rev Sci Instrum 2016; 87:02B936. [PMID: 26932108 DOI: 10.1063/1.4938254] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Recent research results on negative-ion-rich plasmas in a large negative ion source have been reviewed. Spatial density and flow distributions of negative hydrogen ions (H(-)) and positive hydrogen ions together with those of electrons are investigated with a 4-pin probe and a photodetachment (PD) signal of a Langmuir probe. The PD signal is converted to local H(-) density from signal calibration to a scanning cavity ring down PD measurement. Introduction of Cs changes the slope of plasma potential local distribution depending upon the plasma grid bias. A higher electron density H2 plasma locally shields the bias potential and behaves like a metallic free electron gas. On the other hand, the bias and extraction electric fields penetrate in a Cs-seeded electronegative plasma even when the electron density is similar. Electrons are transported by the penetrated electric fields from the driver region along and across the filter and electron deflection magnetic fields. Plasma ions exhibited a completely different response against the penetration of electric fields.
Collapse
Affiliation(s)
- K Tsumori
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - K Ikeda
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - H Nakano
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - M Kisaki
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - S Geng
- The Graduate University for Advanced Studies, Shonan Village, Hayama, Kanagawa 240-0193, Japan
| | - M Wada
- Graduate School of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - K Sasaki
- Division of Quantum Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - S Nishiyama
- Division of Quantum Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - M Goto
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - G Serianni
- Plasma Engineering Group, Consorzio RFX, Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Agostinetti
- Plasma Engineering Group, Consorzio RFX, Corso Stati Uniti 4, 35127 Padova, Italy
| | - E Sartori
- Plasma Engineering Group, Consorzio RFX, Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Brombin
- Plasma Engineering Group, Consorzio RFX, Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Veltri
- Plasma Engineering Group, Consorzio RFX, Corso Stati Uniti 4, 35127 Padova, Italy
| | - C Wimmer
- Max-Planck-Institut für Plasmaphysik, Bereich ITER-Technologie und -Diagnostik/N-NBI Boltzmannstr. 2, 85748 Garching, Germany
| | - K Nagaoka
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - M Osakabe
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - Y Takeiri
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - O Kaneko
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| |
Collapse
|
35
|
Ito S, Nemoto T, Tsujino N, Ohmuro N, Matsumoto K, Matsuoka H, Tanaka K, Nishiyama S, Suzuki M, Kinoshita H, Ozawa H, Fujita H, Shimodera S, Kishimoto T, Matsumoto K, Hasegawa T, Mizuno M. Differential impacts of duration of untreated psychosis (DUP) on cognitive function in first-episode schizophrenia according to mode of onset. Eur Psychiatry 2015; 30:995-1001. [DOI: 10.1016/j.eurpsy.2015.08.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 08/17/2015] [Accepted: 08/18/2015] [Indexed: 01/10/2023] Open
Abstract
AbstractBackgroundThe mode of onset and the course of schizophrenia illness exhibit substantial individual variations. Previous studies have pointed out that the mode of onset affects the duration of untreated psychosis (DUP) and clinical outcomes, such as cognitive and social functioning. This study attempted to clarify the association between the DUP and clinical features, taking the different modes of onset into consideration, in a prospective longitudinal study examining patients with first-episode schizophrenia.MethodsThis study was conducted in six areas of Japan. Patients with first-episode schizophrenia were followed for over 18 months. Cognitive function, psychopathology, and social functioning were assessed at baseline and at 6, 12, and 18-month follow-up points.ResultsWe identified 168 patients and sufficient information was available to determine the DUP and the mode of onset for 156 patients (92.9%): 79 had an acute onset, and 77 had an insidious onset. The DUP was significantly associated with quality of life (QOL), social functioning, and cognitive function at most of the follow-up points in the insidious-onset group. The DUP and negative symptoms at baseline were significant predictors of cognitive function at the 18-month follow-up in the insidious-onset group.ConclusionsThe present results further support the hypothesis that the DUP affects QOL, social functioning, and cognitive function over the course of illness, especially in patients with an insidious onset. Effective strategies for detecting and caring for individuals with insidious onset early during the course of schizophrenia will be essential for achieving a full patient recovery.
Collapse
|
36
|
Takahashi R, Tachibana H, Kamima T, Itano M, Yamazaki T, Ishibashi S, Higuchi Y, Shimizu H, Yamamoto T, Yamashita M, Baba H, Sugawara Y, Sato A, Nishiyama S, Kawai D, Miyaoka S. SU-E-T-48: A Multi-Institutional Study of Independent Dose Verification for Conventional, SRS and SBRT. Med Phys 2015. [DOI: 10.1118/1.4924409] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
37
|
Taniguchi Y, Tsuno M, Karashima T, Nishiyama S, Yoshinaga Y, Ode K, Ogata K, Shimamura Y, Nakayama S, Shuin T, Fujimoto S, Terada Y. THU0302 Clinical Characteristics of Japanese Patients with Reactive Arthritis Induced by Intravesical BCG Therapy for Bladder Cancer: A Retrospective Two-Center Study. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4230] [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: 11/03/2022]
|
38
|
Kishimoto H, Nishiyama S, Yoshinaga Y, Aita T, Ohashi K, Miyawaki S, Miyoshi S, Yoshihara Y, Toda M, Tsuno M. SAT0470 Matrix Metalloproteinase-3 (MMP-3) Correlates with Low Bone Mineral Density (BMD) at the Lumbar Spine, but not at the Femoral Neck in Patients with Systematic Lupus Erythematosus (SLE). Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2923] [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: 11/04/2022]
|
39
|
Nishiyama S, Ohashi K, Aita T, Yoshinaga Y, Miyawaki S. AB0551 Cystatin C Associates with Disease Activity in Patients with Systemic Lupus Erythematosus Independent of Renal Function. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5003] [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: 11/04/2022]
|
40
|
Nishiyama S, Ohashi K, Aita T, Yoshinaga Y, Miyawaki S. AB0552 Correlation between Change in Esspri Items and Change in Essdai Domains. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5068] [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: 11/04/2022]
|
41
|
Kenmochi T, Nishiyama S, Hayashi M, Ito T, Kato Y, Hoshinaga K. Organ Donation From Brain-Dead and Circulatory-Dead Donors: Single-Institution Experiences. Transplant Proc 2014; 46:1051-3. [DOI: 10.1016/j.transproceed.2013.11.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 11/22/2013] [Indexed: 10/25/2022]
|
42
|
Nishiyama S, Ohashi K, Aita T, Yoshinaga Y, Miyawaki S, Nishino J, Tohma S. AB0195 To develop a regression model for predicting damage-related haq: a nationwide study based on the ninja (national database of rheumatic diseases by ir-net in japan) 2011. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-eular.2518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
43
|
Abstract
Abstract A 39-year-old woman with systemic lupus erythematosus (SLE) developed severe acute pancreatitis during a well-controlled disease stage. Treatment with intraarterial injections of antipancreatic enzyme and a small amount of prednisone (20 mg/day) led to remission of the pancreatitis. Disease activity of the SLE did not flare up throughout the course of this treatment. The development of severe acute pancreatitis in SLE is rare. We discuss the cause of pancreatitis in SLE, and whether corticosteroids may induce or improve pancreatitis.
Collapse
Affiliation(s)
- S Nishiyama
- Rheumatic Disease Center, Medical Center Kurashiki , 250 Bakuro-cho, Kurashiki 710-0824 , Japan
| | | | | |
Collapse
|
44
|
Akagi T, Kajita K, Kibe T, Morimura H, Tsujimoto T, Nishiyama S, Kawai T, Yamane H, Tao R. Development of Molecular Markers Associated with Sexuality in Diospyros lotus L. and Their Application in D. kaki Thunb. ACTA ACUST UNITED AC 2014. [DOI: 10.2503/jjshs1.ch-109] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
45
|
Yasuno K, Nishiyama S, Kobayashi R, Yoshimura H, Takahashi K, Omachi T, Kamiie J, Shirota K. Proliferative lesions of intra-epidermal cytokeratin CAM5.2-positive cells in canine nipples. J Comp Pathol 2013; 150:18-26. [PMID: 24060153 DOI: 10.1016/j.jcpa.2013.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 05/27/2013] [Accepted: 07/10/2013] [Indexed: 11/28/2022]
Abstract
Non-keratinocyte cells with clear or vacuolated cytoplasm are frequently observed in the epidermis of canine nipples. Most of these cells express cytokeratin (CK) CAM5.2, a marker of luminal epithelial cells. The morphological and immunohistochemical characteristics of these clear cells were investigated. Nipple tissue from 36 dogs of both sexes was collected and labelled immunohistochemically for CAM5.2, CK7, CK14, CK18, CK20, α-smooth muscle actin, p63, melan-A, E-cadherin, epidermal growth factor receptor and oestrogen receptor (OR). The intra-epidermal CAM5.2(+) clear cells were present singly or as small clusters, mostly within the basal layer, in 22 dogs (61%). These cells also expressed CK7, CK18, E-cadherin and OR. Electron microscopy revealed that some of these cells had surface microvilli. Multifocal proliferative lesions consisting of these cells were observed in the nipples of four dogs. In these lesions, proliferating cells formed bilayered tubules with CAM5.2(+) inner and CK14/p63(+) outer cells. This is the first report describing intra-epidermal CAM5.2(+) clear cells, distinct from melanocytes and Merkel cells in dog nipples. These cells might arise from the luminal epithelium of the papillary duct.
Collapse
Affiliation(s)
- K Yasuno
- Research Institute of Biosciences, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - S Nishiyama
- Research Institute of Biosciences, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - R Kobayashi
- Research Institute of Biosciences, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - H Yoshimura
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - K Takahashi
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - T Omachi
- PATHO LABO Co., Ltd, Shizuoka, Japan
| | - J Kamiie
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - K Shirota
- Research Institute of Biosciences, School of Veterinary Medicine, Azabu University, Kanagawa, Japan; Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University, Kanagawa, Japan.
| |
Collapse
|
46
|
Honda Y, Watanabe T, Tamura H, Nishiyama S, Takahashi H, Arimoto T, Shishido T, Miyashita T, Miyamoto T, Kubota I. Elevated Cardio-Ankle Vascular Index (CAVI) predicts severe sleep disordered breathing in non-overweight patients with chronic heart failure. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5737] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
47
|
Sasaki S, Tamura H, Watanabe T, Nishiyama S, Wanezaki M, Ishino M, Sato C, Kubota I. Decreased left atrial peak systolic strain evaluated by two-dimensional speckle tracking reflects left atrial appendage dysfunction in sinus rhythm patients with acute ischemic stroke. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p402] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
48
|
Otaki Y, Watanabe T, Takahashi H, Tamura H, Nishiyama S, Arimoto T, Miyashita T, Shishido T, Miyamoto T, Kubota I. Plasma thioredoxin-1 level is associated with renal tubular damage and predicts poor prognosis in patients with chronic heart failure. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1524] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
49
|
Wanezaki M, Nishiyama S, Watanabe T, Hirayama A, Kubota I. Trends in the incidence of acute myocardial infarction in coastal and inland area in Japan: the AMI registry. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1587] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
50
|
Nishiyama S, Watanabe T, Wanezaki M, Hirayama A, Arimoto T, Takahashi H, Shishido T, Miyashita T, Miyamoto T, Kubota I. Prevalence of percutaneous coronary intervention is a key to reduce a higher early mortality in female patients with acute myocardial infarction: the Yamagata AMI registry. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5469] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|