1
|
Sekine A, Watanabe T, Nakabo A, Ichiryu H, Endo S, Hayashi M, Naruse G, Nakayama J, Takada A, Fujimoto S, Ozawa N, Inada T, Nohisa Y, Kikuchi R, Kanamori H, Okura H. Sitting maneuver to uncover latent left ventricular outflow tract obstruction in patients without hypertrophic cardiomyopathy. J Cardiol 2024; 83:401-406. [PMID: 38000537 DOI: 10.1016/j.jjcc.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 11/13/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND Left ventricular outflow tract obstruction [LVOTO; pressure gradient (PG) ≥30 mmHg] is observed in some patients without hypertrophic cardiomyopathy (HCM), and it may develop especially in older patients without HCM (non-HCM). The aim of this study is to investigate if the Valsalva or an upright sitting maneuver can unveil latent LVOTO in patients with non-HCM. METHODS A total of 33 non-HCM patients with a late peaking or dagger-shaped pulsed Doppler waveform of the LVOT and PG <30 mmHg were included. The Doppler flow velocity of the LVOT was measured at rest, after the Valsalva and a sitting maneuver. Peak PG of ≥30 mmHg after either maneuver was defined as latent LVOTO. The angle between the left ventricular septum and the aorta in the parasternal long-axis view and the apical three-chamber view was measured. RESULTS Twenty (61 %) of the 33 patients (mean age 74 ± 9 years) were diagnosed with latent LVOTO. Of these, five (25 %) patients were diagnosed after both the Valsalva and sitting maneuver, and 15 (75 %) were diagnosed only after the sitting maneuver. The latent LVOTO group had a significantly smaller angle than the no-LVOTO group between the ventricular septum and the aorta in the parasternal long axis views (107 ± 8° vs. 117 ± 8°, p < 0.01). CONCLUSION The sitting maneuver is better than the Valsalva maneuver in unveiling latent LVOTO in older, non-HCM patients.
Collapse
Affiliation(s)
- Ayako Sekine
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Takatomo Watanabe
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan; Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan.
| | - Ayumi Nakabo
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hajime Ichiryu
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Susumu Endo
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Misayo Hayashi
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Genki Naruse
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Juri Nakayama
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Ayae Takada
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Shingo Fujimoto
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Noriko Ozawa
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Takayuki Inada
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Yuzuru Nohisa
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Ryosuke Kikuchi
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Hiromitsu Kanamori
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hiroyuki Okura
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan; Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| |
Collapse
|
2
|
Kitano J, Ansai S, Fujimoto S, Kakioka R, Sato M, Mandagi IF, Sumarto BKA, Yamahira K. A Cryptic Sex-Linked Locus Revealed by the Elimination of a Master Sex-Determining Locus in Medaka Fish. Am Nat 2023; 202:231-240. [PMID: 37531272 DOI: 10.1086/724840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
AbstractSex chromosomes rapidly turn over in several taxonomic groups. Sex chromosome turnover is generally thought to start with the appearance of a new sex-determining gene on an autosome while an old sex-determining gene still exists, followed by the fixation of the new one. However, we do not know how prevalent the transient state is, where multiple sex-determining loci coexist within natural populations. Here, we removed a Y chromosome with a master male-determining gene DMY from medaka fish using high temperature-induced sex-reversed males. After four generations, the genomic characteristics of a sex chromosome were found on one chromosome, which was an autosome in the original population. Thus, the elimination of a master sex-determining locus can reveal a cryptic locus with a possible sex-determining effect, which can be the seed for sex chromosome turnover. Our results suggest that populations that seem to have a single-locus XY system may have other chromosomal regions with sex-determining effects. In conclusion, the coexistence of multiple sex-determining genes in a natural population may be more prevalent than previously thought. Experimental elimination of a master sex-determining locus may serve as a promising method for finding a locus that can be a protosex chromosome.
Collapse
|
3
|
Aoyama N, Nishiyama M, Namba H, Ikeuchi M, Fujimoto S, Terada Y. Tumor-induced osteomalacia. QJM 2023; 116:78-79. [PMID: 36066446 DOI: 10.1093/qjmed/hcac219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- N Aoyama
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kochi University, 1-185, Kohasu, Oko-cho, Nankoku City, Kochi 783-8505, Japan
| | - M Nishiyama
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kochi University, 1-185, Kohasu, Oko-cho, Nankoku City, Kochi 783-8505, Japan and Health Care Center, Kochi University, 1-5-2, Akebono-cho, Kochi City, Kochi 780-8520, Japan
| | - H Namba
- Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, 1-185, Kohasu, Oko-cho, Nankoku City, Kochi 783-8505, Japan
| | - M Ikeuchi
- Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, 1-185, Kohasu, Oko-cho, Nankoku City, Kochi 783-8505, Japan
| | - S Fujimoto
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kochi University, 1-185, Kohasu, Oko-cho, Nankoku City, Kochi 783-8505, Japan
| | - Y Terada
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Kochi University, 1-185, Kohasu, Oko-cho, Nankoku City, Kochi 783-8505, Japan
| |
Collapse
|
4
|
Fujimoto S, Yaguchi H, Myosho T, Aoyama H, Sato Y, Kimura R. Population admixtures in medaka inferred by multiple arbitrary amplicon sequencing. Sci Rep 2022; 12:19989. [PMID: 36411327 PMCID: PMC9678866 DOI: 10.1038/s41598-022-24498-7] [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: 08/18/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022] Open
Abstract
Cost-effective genotyping can be achieved by sequencing PCR amplicons. Short 3-10 base primers can arbitrarily amplify thousands of loci using only a few primers. To improve the sequencing efficiency of the multiple arbitrary amplicon sequencing (MAAS) approach, we designed new primers and examined their efficiency in sequencing and genotyping. To demonstrate the effectiveness of our method, we applied it to examining the population structure of the small freshwater fish, medaka (Oryzias latipes). We obtained 2987 informative SNVs with no missing genotype calls for 67 individuals from 15 wild populations and three artificial strains. The estimated phylogenic and population genetic structures of the wild populations were consistent with previous studies, corroborating the accuracy of our genotyping method. We also attempted to reconstruct the genetic backgrounds of a commercial orange mutant strain, Himedaka, which has caused a genetic disturbance in wild populations. Our admixture analysis focusing on Himedaka showed that at least two wild populations had genetically been contributed to the nuclear genome of this mutant strain. Our genotyping methods and results will be useful in quantitative assessments of genetic disturbance by this commercially available strain.
Collapse
Affiliation(s)
- Shingo Fujimoto
- grid.267625.20000 0001 0685 5104Graduate School of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0125 Japan ,grid.267625.20000 0001 0685 5104Present Address: Research Laboratory Center, Faculty of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0213 Japan ,grid.267625.20000 0001 0685 5104Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa 903-0213 Japan
| | - Hajime Yaguchi
- grid.267625.20000 0001 0685 5104Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa 903-0213 Japan ,grid.258777.80000 0001 2295 9421Present Address: Department of Bioscience, School of Science and Technology, Kwansei Gakuin University, Nishihara, Hyogo 669-1330 Japan
| | - Taijun Myosho
- grid.469280.10000 0000 9209 9298Laboratory of Molecular Reproductive Biology, Institute for Environmental Sciences, University of Shizuoka, Nishihara, 422-8526 Japan
| | - Hiroaki Aoyama
- grid.267625.20000 0001 0685 5104Center for Strategic and Research Center, University of the Ryukyus, Nishihara, Okinawa 903-0213 Japan ,grid.267625.20000 0001 0685 5104Research Planning Office, University of the Ryukyus, Nishihara, Okinawa 903-0213 Japan
| | - Yukuto Sato
- grid.267625.20000 0001 0685 5104Present Address: Research Laboratory Center, Faculty of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0213 Japan ,grid.267625.20000 0001 0685 5104Center for Strategic and Research Center, University of the Ryukyus, Nishihara, Okinawa 903-0213 Japan
| | - Ryosuke Kimura
- grid.267625.20000 0001 0685 5104Graduate School of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0125 Japan
| |
Collapse
|
5
|
Nozaki Y, Fujimoto S, Takahashi D, Kawaguchi YO, Kudo A, Aoshima C, Kamo Y, Takamura K, Hiki M, Dohi T, Tomizawa N, Minamino T. Additional clinical impact of plaque analysis for on-site CT-derived FFR in coronary CT angiography on midterm prognosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.208] [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
We previously reported that per-patient on-site computed tomography-fractional flow reserve (CT-FFR), which can be acquired on-site workstation using fluid structure interaction during the multiple optimal diastolic phases measured 1 to 2 cm distal to a target lesion may be feasible for risk stratification based on future cardiac events for patients who did not undergo planned revascularization. However, per-vessel CT-FFR and the additional impact of plaque analysis on CT-FFR have not been evaluated.
Purpose
The aim of this study is to assess the clinical and additional impact of novel plaque analysis using labeling method for per-vessel CT-FFR on midterm prognosis.
Methods
A total of 254 consecutive patients with 354 vessels showing 50–90% stenosis but not revascularized within 90 days from coronary CT angiography (CCTA) on 320-row CT were retrospectively analyzed and followed during a median follow up 3.6 years. Plaque characteristics by labeling method (necrotic core/total plaque volume (% necrotic core), non-calcified plaque (NCP)/vessel volume (%NCP), and total plaque/vessel volume (%total plaque) for both total vessel volume (mm3) and at minimum lumen area (MLA, mm2)), positive remodeling (PR) and CT-FFR were analyzed on per-target vessels. The endpoint was vessel oriented-composite outcome (VOCO), including cardiac death, non-fatal MI, and unplanned revascularization.
Results
The incidence of VOCO occurred in 6.8% (24/354). In the cox proportional hazard model, a multivariate analysis identified CT-FFR≤0.80 was the most associated factor with VOCO (all values <0.01 for other plaque morphologies), but %necrotic core, %NCP, %total plaque at MLA and PR were significantly independent of CT-FFR≤0.80. (%necrotic core HR; 3.43 (p<0.01 [95% confidence interval (CI) 1.42–8.29]), %NCP HR; 4.05 (p=0.03 [95% CI 1.19–13.71]), %total plaque at MLA HR; 2.82 (p=0.02 [95% CI 1.18–6.76]), and PR HR; 2.90 (p<0.01 [95% CI 1.30–6.51]), respectively.)
Conclusion
From a view point of clinical outcomes for vessels with moderate to severe stenosis but not revascularized at initial CCTA, CT-FFR demonstrated the significant impact on per-vessel analysis. Moreover, %necrotic core, %NCP and %total plaque at MLA analyzed by labeling method provided better prognostic value in addition to CT-FFR.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- Y Nozaki
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - S Fujimoto
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - D Takahashi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - Y O Kawaguchi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - A Kudo
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - C Aoshima
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - Y Kamo
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - K Takamura
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - M Hiki
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - T Dohi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - N Tomizawa
- Juntendo University Graduate School of Medicine, Department of Radiology , Tokyo , Japan
| | - T Minamino
- Juntendo University Graduate School of Medicine, Department of Radiology , Tokyo , Japan
| |
Collapse
|
6
|
Takahashi D, Fujimoto S, Nozaki YO, Kudo A, Kawaguchi YO, Takamura K, Hiki M, Sato H, Tomizawa N, Minamino T. Clinical impact of novel pericoronary adipose tissue measurement on ECG-gated non-contrast chest CT scan. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.191] [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
Pericoronary adipose tissue (PCAT) quantified from coronary computed tomography angiography (CCTA) is a new predictor of CT-derived high-risk plaque (HRP) and adverse cardiac events. There has been no report investigating the method to assess PCAT from non-contrast CT so far. In this present study, we developed a brand-new method to quantify the value of PCAT from electrocardiogram (ECG)-gated non-contrast CT (NC-PCAT).
Purpose
To develop a brand-new method to quantify NC-PCAT accurately, and evaluate its prognostic value.
Methods
We retrospectively studied two independent cohorts of patients undergoing CCTA and ECG-gated non-contrast CT for clinical indication of coronary artery disease (CAD). For former cohort of consecutive 300 patients, we validated the agreement between the NC-PCAT and PCAT, and evaluated the association between NC-PCAT and the prevalence of HRP. For latter cohort of consecutive 333 patients, we dichotomized them into two groups with median NC-PCAT, and assessed the prognostic value of NC-PCAT. To quantify NC-PCAT, we placed 15x15mm region of interest at epicardial fat tissue dorsally adjacent to right coronary ostium in axial slice of ECG-gated non-contrast CT, and defined NC-PCAT as the mean CT value of each 1x1mm pixel there. PCAT was quantified from CCTA using conventional method as described in former researches. Primary endpoint was defined as major adverse cardiac events (MACE), composite of all-cause death and non-fatal myocardial infarction. HRP was defined as coronary artery plaque which has two or more following features; positive remodeling, low attenuation, spotty calcification, and napkin-ring sign.
Results
NC-PCAT was well-correlated with PCAT (r=0.68, p<0.0001). In former cohort, we found HRP in 34 (11.3%) patients. In multivariable logistic regression analysis, higher NC-PCAT (OR 1.06, 95% CI 1.03–1.10, p=0.0001), coronary artery calcium score (CACS) (OR 1.01 per 10 CACS increase, 95% CI 1.00–1.02, p=0.013), and current smoking (OR 2.58, 95% CI 1.03–6.49, p=0.044) were independent predictors of the prevalence of HRP. Among patients with CACS more than zero (n=193), NC-PCAT (OR 1.06, 95% CI 1.03–1.10, p=0.0002), current smoking (OR 3.02, 95% CI 1.17–7.82, p=0.027), and male (OR 2.81, 95% CI 1.06–7.48, p=0.028) were independent predictors of the prevalence of HRP, whereas CACS was not (p=0.15). In latter cohort, the median duration of follow-up was 2.9 years (IQR 1.9–3.9), and 16 (4.8%) cases of MACE were identified. The cumulative incidence of MACE was significantly higher in high NC-PCAT group. Multivariable cox hazard regression analysis revealed that higher NC-PCAT was an independent predictor of primary endpoint, even after adjustment for sex and age (HR 4.28, 95% CI 1.20–12.52, p=0.012).
Conclusions
There was a positive correlation between NC-PCAT and PCAT. Higher NC-PCAT is significantly associated with not only the prevalence of HRP, but also worse clinical outcome.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- D Takahashi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - S Fujimoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - Y O Nozaki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - A Kudo
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - Y O Kawaguchi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - K Takamura
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - M Hiki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - H Sato
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - N Tomizawa
- Juntendo University Graduate School of Medicine, Department of Radiology , Tokyo , Japan
| | - T Minamino
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| |
Collapse
|
7
|
Montenegro J, Fujimoto S, Ansai S, Nagano AJ, Sato M, Maeda Y, Tanaka R, Masengi KWA, Kimura R, Kitano J, Yamahira K. Genetic basis for the evolution of pelvic-fin brooding, a new mode of reproduction, in a Sulawesian fish. Mol Ecol 2022; 31:3798-3811. [PMID: 35638236 DOI: 10.1111/mec.16555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 05/25/2022] [Indexed: 11/29/2022]
Abstract
Modes of reproduction in animals are diverse, with different modes having evolved independently in multiple lineages across a variety of taxa. However, an understanding of the genomic change driving the transition between different modes of reproduction is limited. Several ricefishes (Adrianichthyidae) on the island of Sulawesi have a unique mode of reproduction called "pelvic-fin brooding," wherein females carry externally fertilized eggs until hatching using their pelvic fins. Phylogenomic analysis demonstrated pelvic-fin brooders to have evolved at least twice in two distant clades of the Adrianichthyidae. We investigated the genetic architecture of the evolution of this unique mode of reproduction. Morphological analyses and laboratory observations revealed that females of pelvic-fin brooders have longer pelvic fins and a deeper abdominal concavity, and that they can carry an egg clutch for longer than non-brooding adrianichthyids, suggesting that these traits play important roles in this reproductive mode. Quantitative trait locus mapping using a cross between a pelvic-fin brooder Oryzias eversi and a non-brooding O. dopingdopingensis reveals different traits involved in pelvic-fin brooding to be controlled by different loci on different chromosomes. Genomic analyses of admixture detected no signatures of introgression between two lineages with pelvic-fin brooders, indicating that introgression is unlikely to be responsible for repeated evolution of pelvic-fin brooding. These findings suggest that multiple independent mutations may have contributed to the convergent evolution of this novel mode of reproduction.
Collapse
Affiliation(s)
- Javier Montenegro
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Shingo Fujimoto
- Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.,Present address: Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Satoshi Ansai
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Atsushi J Nagano
- Faculty of Agriculture, Ryukoku University, Otsu, Japan.,Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
| | - Masahiro Sato
- World Medaka Aquarium, Nagoya Higashiyama Zoo and Botanical Gardens, Nagoya, Japan
| | - Yusuke Maeda
- World Medaka Aquarium, Nagoya Higashiyama Zoo and Botanical Gardens, Nagoya, Japan
| | - Rieko Tanaka
- World Medaka Aquarium, Nagoya Higashiyama Zoo and Botanical Gardens, Nagoya, Japan
| | | | - Ryosuke Kimura
- Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Jun Kitano
- Ecological Genetics Laboratory, National Institute of Genetics, Mishima, Japan
| | - Kazunori Yamahira
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| |
Collapse
|
8
|
Myosho T, Ishibashi A, Fujimoto S, Miyagawa S, Iguchi T, Kobayashi T. Preself-Feeding Medaka Fry Provides a Suitable Screening System for in Vivo Assessment of Thyroid Hormone-Disrupting Potential. Environ Sci Technol 2022; 56:6479-6490. [PMID: 35475622 DOI: 10.1021/acs.est.1c06729] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Endocrine-disrupting chemicals are assessed based on their physiological potential and their potential associated adverse effects. However, suitable end points for detection of chemicals that interfere with the thyroid hormone (TH) system have not been established in nonmammals, with the exception of amphibian metamorphosis. The aims of the current study were to develop an in vivo screening system using preself-feeding medaka fry (Oryzias latipes) for the detection of TH-disrupting chemicals and elucidate the underlying molecular mechanism. 17α-Ethinylestradiol (EE2: <100 ng/L) did not induce mRNA expression of estrogen-responsive genes, vitellogenins (vtgs) mRNA. Meanwhile, coexposure with thyroxin (T4) induced an increase of vtg expression. TH-disrupting chemicals (thiourea (TU), perfluorooctanoic acid (PFOA), and tetrabromobisphenol A (TBBPA)) significantly suppressed EE2 (1,000 ng/L)-induced vtg1 expression, while T4 rescued their expression as well as that of thyroid hormone receptor α (tRα) and estrogen receptors (esrs). These results were supported by in silico analysis of the 5'-transcriptional regulatory region of these genes. Furthermore, the esr1 null mutant revealed that EE2-induced vtg1 expression requires mainly esr2a and esr2b in a TH-dependent manner in preself-feeding fry. Application of preself-feeding medaka fry as a screening system might help decipher the in vivo mechanisms of action of TH-disrupting molecules, while providing an alternative to the traditional animal model.
Collapse
Affiliation(s)
- Taijun Myosho
- Laboratory of Molecular Reproductive Biology, Institute for Environmental Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
- Graduate School of Integrated Pharmaceutical and Nutrition Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Ayaka Ishibashi
- Graduate School of Integrated Pharmaceutical and Nutrition Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Shingo Fujimoto
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Shinichi Miyagawa
- Faculty of Advanced Engineering, Tokyo University of Science, Tokyo 125-8585, Japan
| | - Taisen Iguchi
- Graduate School of Nanobioscience, Yokohama City University, Yokohama 236-0027, Japan
| | - Tohru Kobayashi
- Laboratory of Molecular Reproductive Biology, Institute for Environmental Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
- Graduate School of Integrated Pharmaceutical and Nutrition Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| |
Collapse
|
9
|
Affiliation(s)
- Kazunori Yamahira
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Shingo Fujimoto
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Yasuoki Takami
- Graduate School of Human Development and Environment, Kobe University, Kobe 657-8501, Japan
| |
Collapse
|
10
|
Morii Y, Fujimoto S, Nakahara R, Okawa K, Senaha H, Fujiwara K, Tsubaki M, Matzno S, Takegami M, Shimomura K, Nishida S. Effect of proton pump inhibitors on the development of hypomagnesemia induced by panitumumab. Pharmazie 2022; 77:81-84. [PMID: 35209968 DOI: 10.1691/ph.2022.1988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Panitumumab, a therapeutic agent for unresectable advanced/recurrent colorectal cancer, is a human IgG2 monoclonal antibody that binds to and inhibits the activity of the epidermal growth factor receptor (EGFR). The onset of hypomagnesemia is a known side effect of anti-EGFR inhibitors, including panitumumab, and it is thought that inhibition of reabsorption of Mg in renal tubules is one of the causes. In addition, recent reports have shown that long-term administration of proton pump inhibitors (PPIs) reduces serum magnesium levels. Therefore, in this study, 102 patients who received oral PPIs treated with panitumumab were classified into a PPI combination group and a PPI non-combination group, and the effect of PPIs on the development of grade 2 or higher hypomagnesemia was investigated. The incidence of hypomagnesemia in the PPI combination group (46.9%, 15/32) was higher than that in the PPI non-combination group (25.7%, 18/70). A comparison of the backgrounds of the two groups of patients showed a significant difference in serum albumin levels. PPI administration was significantly associated with panitumumab-induced hypomagnesemia development when adjusted for known risk factors, serum albumin level, renal function, and oral magnesium oxide tablets in Cox proportional hazards regression analysis (hazard ratio 2.09; 95% confidence interval 1.03-4.22; P =0.040). These results indicate that detailed monitoring of serum magnesium levels is recommended for patients treated with panitumumab and co-administration of PPIs.
Collapse
Affiliation(s)
- Y Morii
- Department of Pharmacy, Ikeda City Hospital, Osaka, Japan; Division of Pharmacotherapy, Kindai University Faculty of Pharmacy, Osaka, Japan
| | - S Fujimoto
- Department of Pharmacy, Kindai University Hospital, Osaka, Japan
| | - R Nakahara
- Department of Pharmacy, Kindai University Hospital, Osaka, Japan
| | - K Okawa
- Department of Pharmacy, Ikeda City Hospital, Osaka, Japan
| | - H Senaha
- Department of Pharmacy, Ikeda City Hospital, Osaka, Japan
| | - K Fujiwara
- Department of Pharmacy, Kindai University Hospital, Osaka, Japan
| | - M Tsubaki
- Division of Pharmacotherapy, Kindai University Faculty of Pharmacy, Osaka, Japan
| | - S Matzno
- Division of Pharmaceutical Education, Kindai University Faculty of Pharmacy, Osaka, Japan
| | - M Takegami
- Department of Pharmacy, Kindai University Hospital, Osaka, Japan
| | - K Shimomura
- Department of Pharmacy, Ikeda City Hospital, Osaka, Japan
| | - S Nishida
- Division of Pharmacotherapy, Kindai University Faculty of Pharmacy, Osaka, Japan;,
| |
Collapse
|
11
|
Okada-Nozaki Y, Fujimoto S, Aoshima C, Kamo Y, Okano-Kawaguchi Y, Takamura K, Kudo A, Takahashi D, Hiki M, Dohi T, Okazaki S, Tomizawa N, Minamino T. Optimal measurement location of on-site based CT-derived FFR on midterm prognosis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0194] [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: 11/15/2022] Open
Abstract
Abstract
Background
Fractional Flow Reserve (FFR) derived from coronary computed tomography angiography (CCTA) enables anatomical and hemodynamical assessment of coronary artery disease. CT-FFR, which can be acquired on-site workstation using fluid structure interaction during the multiple optimal diastolic phase, has an incremental diagnostic value over conventional CCTA. However, few studies are focused on investigating the appropriate measurement location of CT-FFR, considering the prognosis, using CCTA as a standalone modality.
Purpose
The aim of this study is to assess the clinical impact on CT-FFR with an appropriate measurement.
Methods
A total of 370 consecutive patients who underwent CCTA in a single-heartbeat scan with a phase window of 70% to 99% of the R-R interval, showing 50–90% stenosis of at least one major epicardial vessel measuring ≥1.8 mm in diameter on CCTA were retrospectively analyzed and followed during a median follow up 2.9 years. CT-FFR values were measured at three points: 1, 2 cm distal to a target lesion (CT-FFR1cm, 2cm) and the vessel terminus (CT-FFRlowest), and a CT-FFR value ≤0.80 was considered abnormal. The endpoint was MACE, a composite of cardiac death, non-fatal MI, and unplanned revascularization.
Results
The incidence of MACE occurred in 8.4% (31/370) of the whole patients, including four cardiac deaths, ten all cause deaths, two non-fatal MI, and twenty unplanned revascularization. The Kaplan-Meier survival analysis demonstrated a significantly higher cumulative MACE rate in patients with positive CT-FFR1cm and 2cm than those with negative CT-FFR1cm and 2cm, while there was no significant difference between negative and positive in CT-FFRlowest, among patients with negative CT-FFR1cm and 2cm (Figure 1). Among 221 patients, who did not perform early revascularization within 90 days from CCTA, there was no significant difference in CT-FFRlowest in the incidence of MACE. In contrast, the risk of MACE was significantly higher in both positive CT-FFR1cm and CT-FFR2cm (Figure 2).
Conclusion
From a view point of clinical outcome for patients with moderate to severe stenosis on CCTA, a CT-FFR value when measured at 1-to-2 cm distal to a target lesion could be feasible for the deferral of unnecessary invasive coronary angiography safely. Moreover, CT-FFR1–2cm showed better risk stratification measurement rather than CT-FFRlowest, based on future adverse cardiac event.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): Canon Medical Systems Corporation Kaplan-Meier 1Kaplan-Meier 2
Collapse
Affiliation(s)
- Y Okada-Nozaki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - S Fujimoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - C Aoshima
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - Y Kamo
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - Y Okano-Kawaguchi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - K Takamura
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - A Kudo
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - D Takahashi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - M Hiki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - T Dohi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - S Okazaki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - N Tomizawa
- Juntendo University Graduate School of Medicine, Department of Radiology, Tokyo, Japan
| | - T Minamino
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| |
Collapse
|
12
|
Yamahira K, Ansai S, Kakioka R, Yaguchi H, Kon T, Montenegro J, Kobayashi H, Fujimoto S, Kimura R, Takehana Y, Setiamarga DHE, Takami Y, Tanaka R, Maeda K, Tran HD, Koizumi N, Morioka S, Bounsong V, Watanabe K, Musikasinthorn P, Tun S, Yun LKC, Masengi KWA, Anoop VK, Raghavan R, Kitano J. Mesozoic origin and 'out-of-India' radiation of ricefishes (Adrianichthyidae). Biol Lett 2021; 17:20210212. [PMID: 34343438 DOI: 10.1098/rsbl.2021.0212] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The Indian subcontinent has an origin geologically different from Eurasia, but many terrestrial animal and plant species on it have congeneric or sister species in other parts of Asia, especially in the Southeast. This faunal and floral similarity between India and Southeast Asia is explained by either of the two biogeographic scenarios, 'into-India' or 'out-of-India'. Phylogenies based on complete mitochondrial genomes and five nuclear genes were undertaken for ricefishes (Adrianichthyidae) to examine which of these two biogeographic scenarios fits better. We found that Oryzias setnai, the only adrianichthyid distributed in and endemic to the Western Ghats, a mountain range running parallel to the western coast of the Indian subcontinent, is sister to all other adrianichthyids from eastern India and Southeast-East Asia. Divergence time estimates and ancestral area reconstructions reveal that this western Indian species diverged in the late Mesozoic during the northward drift of the Indian subcontinent. These findings indicate that adrianichthyids dispersed eastward 'out-of-India' after the collision of the Indian subcontinent with Eurasia, and subsequently diversified in Southeast-East Asia. A review of geographic distributions of 'out-of-India' taxa reveals that they may have largely fuelled or modified the biodiversity of Eurasia.
Collapse
Affiliation(s)
- Kazunori Yamahira
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Satoshi Ansai
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Ryo Kakioka
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Hajime Yaguchi
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan.,School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Takeshi Kon
- Center for Strategic Research Project, University of the Ryukyus, Okinawa, Japan
| | - Javier Montenegro
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Hirozumi Kobayashi
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Shingo Fujimoto
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Ryosuke Kimura
- Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Yusuke Takehana
- Faculty of Bio-Science, Nagahama Institute of Bio-Science and Technology, Japan
| | - Davin H E Setiamarga
- Department of Applied Chemistry and Biochemistry, National Institute of Technology, Wakayama College, Wakayama, Japan
| | - Yasuoki Takami
- Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | - Rieko Tanaka
- World Medaka Aquarium, Nagoya Higashiyama Zoo and Botanical Gardens, Nagoya, Japan
| | - Ken Maeda
- Marine Eco-Evo-Devo Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Hau D Tran
- Faculty of Biology, Hanoi National University of Education, Hanoi, Vietnam
| | - Noriyuki Koizumi
- Strategic Planning Headquarters, National Agriculture and Food Research Organization, Ibaraki, Japan
| | - Shinsuke Morioka
- Fisheries Division, Japan International Research Center for Agricultural Sciences, Ibaraki, Japan
| | | | - Katsutoshi Watanabe
- Division of Biological Sciences, Graduate School of Science, Kyoto University, Kyoto, Japan
| | | | - Sein Tun
- Inlay Lake Wildlife Sanctuary, Ministry of Natural Resources and Environmental Conservation, Nyaungshwe, Myanmar
| | - L K C Yun
- Inlay Lake Wildlife Sanctuary, Ministry of Natural Resources and Environmental Conservation, Nyaungshwe, Myanmar
| | | | - V K Anoop
- School of Ocean Science and Technology, Kerala University of Fisheries and Ocean Studies, Kochi, India
| | - Rajeev Raghavan
- Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies, Kochi, India
| | - Jun Kitano
- Ecological Genetics Laboratory, National Institute of Genetics, Mishima, Japan
| |
Collapse
|
13
|
Cho A, Tomihama R, Chen R, Cooper K, Malit A, Jin D, Fujimoto S, Kassir M, Smith J. Abstract No. 135 Point-of-care ultrasound (POCUS) versus conventional ultrasound imaging quality. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
14
|
Fujimoto S, Tsurui‐Sato K, Katsube N, Tatsuta H, Tsuji K. Alternative reproductive tactics in male freshwater fish influence the accuracy of species recognition. Ecol Evol 2021; 11:3884-3900. [PMID: 33976782 PMCID: PMC8093699 DOI: 10.1002/ece3.7267] [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: 07/02/2020] [Revised: 01/07/2021] [Accepted: 01/19/2021] [Indexed: 11/30/2022] Open
Abstract
Sexual conflict can result in coercive mating. Because males bear low costs of heterospecific mating, coercive males may engage in misdirected mating attempts toward heterospecific females. In contrast, sexual selection through consensual mate choice can cause mate recognition cues among species to diverge, leading to more accurate species recognition. Some species show both coercive mating and mate choice-associated courtship behaviors as male alternative reproductive tactics. We hypothesized that if the selection pressures on each tactic differ, then the accuracy of species recognition would also change depending on the mating tactic adopted. We tested this hypothesis in the guppy (Poecilia reticulata) and mosquitofish (Gambusia affinis) by a series of choice experiments. Poecilia reticulata and G. affinis males both showed imperfect species recognition and directed all components of mating behavior toward heterospecific females. They tended to direct courtship displays more frequently toward conspecific than heterospecific females. With male P. reticulata, however, accurate species recognition disappeared when they attempted coercive copulation: they directed coercions more frequently toward heterospecific females. We also found that heterospecific sexual interaction had little effect on the fecundity of gravid females, which suggests that prepregnancy interactions likely underpin the exclusion of G. affinis by P. reticulata in our region.
Collapse
Affiliation(s)
- Shingo Fujimoto
- Center for Strategic Research ProjectUniversity of the RyukyusNishiharaJapan
- Present address:
Graduate School of MedicineUniversity of the RyukyusOkinawaJapan
| | - Kaori Tsurui‐Sato
- Center for Strategic Research ProjectUniversity of the RyukyusNishiharaJapan
| | - Naotaka Katsube
- Faculty of AgricultureUniversity of the RyukyusNishiharaJapan
| | - Haruki Tatsuta
- Faculty of AgricultureUniversity of the RyukyusNishiharaJapan
- The United Graduate School of Agricultural SciencesKagoshima UniversityKagoshimaJapan
| | - Kazuki Tsuji
- Faculty of AgricultureUniversity of the RyukyusNishiharaJapan
- The United Graduate School of Agricultural SciencesKagoshima UniversityKagoshimaJapan
| |
Collapse
|
15
|
Sumarto BKA, Nofrianto AB, Mokodongan DF, Lawelle SA, Masengi KWA, Fujimoto S, Yamahira K. Variation in Mating Behaviors Between a Tropical and a Temperate Species of Medaka Fishes. Zoolog Sci 2021; 38:45-50. [PMID: 33639717 DOI: 10.2108/zs200114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 08/27/2020] [Indexed: 11/17/2022]
Abstract
In medaka fishes, the family Adrianichthyidae, tropical species are known to be sexually more dimorphic than temperate species. If this reflects that tropical species are exposed to stronger sexual-selection pressures than temperate species, mating behaviors may also differ between tropical and temperate species. Our mating experiments revealed that males of Oryzias woworae, a tropical species of the family, perform "chasing" another male more frequently than males of O. sakaizumii, a temperate congener, and that male-male "combats" of O. woworae tended to be followed by chasing compared with combats of O. sakaizumii males, indicating that O. woworae males are more aggressive in male-male interactions than O. sakaizumii males. Males of O. woworae also performed "approaching" a female and "mating dance" more frequently than O. sakaizumii males, indicating that O. woworae males are also more active in courting females. Males of O. sakaizumii often omitted "mating dance" in their mating sequences, supporting this view. Moreover, O. woworae females tended to reject male "wrapping", an attempt for fertilization, more frequently than O. sakaizumii females, suggesting that O. woworae females are choosier in mating than O. sakaizumii females. These findings are concordant with the view that O. woworae is exposed to stronger sexual-selection pressures than O. sakaizumii.
Collapse
Affiliation(s)
- Bayu K A Sumarto
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Andy B Nofrianto
- Faculty of Fisheries and Marine Science, Halu Oleo University, Kendari 93232, Indonesia
| | - Daniel F Mokodongan
- Faculty of Fisheries and Marine Science, Halu Oleo University, Kendari 93232, Indonesia
| | - Sjamsu A Lawelle
- Faculty of Fisheries and Marine Science, Halu Oleo University, Kendari 93232, Indonesia
| | - Kawilarang W A Masengi
- Faculty of Fisheries and Marine Science, Sam Ratulangi University, Manado 95115, Indonesia
| | - Shingo Fujimoto
- Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0125, Japan,
| | - Kazunori Yamahira
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan,
| |
Collapse
|
16
|
Ansai S, Mochida K, Fujimoto S, Mokodongan DF, Sumarto BKA, Masengi KWA, Hadiaty RK, Nagano AJ, Toyoda A, Naruse K, Yamahira K, Kitano J. Genome editing reveals fitness effects of a gene for sexual dichromatism in Sulawesian fishes. Nat Commun 2021; 12:1350. [PMID: 33649298 PMCID: PMC7921647 DOI: 10.1038/s41467-021-21697-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 02/02/2021] [Indexed: 01/31/2023] Open
Abstract
Sexual selection drives rapid phenotypic diversification of mating traits. However, we know little about the causative genes underlying divergence in sexually selected traits. Here, we investigate the genetic basis of male mating trait diversification in the medaka fishes (genus Oryzias) from Sulawesi, Indonesia. Using linkage mapping, transcriptome analysis, and genome editing, we identify csf1 as a causative gene for red pectoral fins that are unique to male Oryzias woworae. A cis-regulatory mutation enables androgen-induced expression of csf1 in male fins. csf1-knockout males have reduced red coloration and require longer for mating, suggesting that coloration can contribute to male reproductive success. Contrary to expectations, non-red males are more attractive to a predatory fish than are red males. Our results demonstrate that integrating genomics with genome editing enables us to identify causative genes underlying sexually selected traits and provides a new avenue for testing theories of sexual selection.
Collapse
Affiliation(s)
- Satoshi Ansai
- grid.288127.60000 0004 0466 9350Ecological Genetics Laboratory, Department of Genomics and Evolutionary Biology, National Institute of Genetics, Mishima, Shizuoka, Japan ,grid.419396.00000 0004 0618 8593Laboratory of Bioresources, National Institute for Basic Biology, Okazaki, Aichi, Japan ,grid.69566.3a0000 0001 2248 6943Present Address: Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi Japan
| | - Koji Mochida
- grid.267625.20000 0001 0685 5104Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa, Japan ,grid.26091.3c0000 0004 1936 9959Department of Biology, Keio University, Yokohama, Kanagawa, Japan
| | - Shingo Fujimoto
- grid.267625.20000 0001 0685 5104Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa, Japan ,grid.267625.20000 0001 0685 5104Present Address: Department of Human Biology and Anatomy, Graduate School of Medicine, University of the Ryukyus, Nishihara, Okinawa Japan
| | - Daniel F. Mokodongan
- grid.267625.20000 0001 0685 5104Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa, Japan ,grid.249566.a0000 0004 0644 6054Present Address: Museum Zoologicum Bogoriense (MZB), Zoology Division of Research Center for Biology, Indonesian Institute of Science (LIPI), Cibinong, Indonesia
| | - Bayu Kreshna Adhitya Sumarto
- grid.267625.20000 0001 0685 5104Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa, Japan
| | - Kawilarang W. A. Masengi
- grid.412381.d0000 0001 0702 3254Faculty of Fisheries and Marine Science, Sam Ratulangi University, Manado, Indonesia
| | - Renny K. Hadiaty
- grid.249566.a0000 0004 0644 6054Research Center for Biology, Indonesian Institute of Science (LIPI), Cibinong, Indonesia
| | - Atsushi J. Nagano
- grid.440926.d0000 0001 0744 5780Faculty of Agriculture, Ryukoku University, Ohtsu, Shiga, Japan
| | - Atsushi Toyoda
- grid.288127.60000 0004 0466 9350Comparative Genomics Laboratory, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Kiyoshi Naruse
- grid.419396.00000 0004 0618 8593Laboratory of Bioresources, National Institute for Basic Biology, Okazaki, Aichi, Japan
| | - Kazunori Yamahira
- grid.267625.20000 0001 0685 5104Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa, Japan
| | - Jun Kitano
- grid.288127.60000 0004 0466 9350Ecological Genetics Laboratory, Department of Genomics and Evolutionary Biology, National Institute of Genetics, Mishima, Shizuoka, Japan
| |
Collapse
|
17
|
Kurita N, Wakita T, Fujimoto S, Yanagi M, Koitabashi K, Suzuki T, Yazawa M, Kawarazaki H, Shibagaki Y, Ishibashi Y. Hopelessness and Depression Predict Sarcopenia in Advanced CKD and Dialysis: A Multicenter Cohort Study. J Nutr Health Aging 2021; 25:593-599. [PMID: 33949624 DOI: 10.1007/s12603-020-1556-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND/OBJECTIVES Depression and hopelessness are frequently experienced in chronic kidney disease (CKD) and are generally associated with lessened physical activity. The aim of this study was to quantify the associations between sarcopenia as determined by SARC-F with both depression and hopelessness. DESIGN AND SETTING This multicenter cohort study involving cross-sectional and longitudinal analyses was conducted in a university hospital and four general hospitals, each with a nephrology center, in Japan. PARTICIPANTS Participants consisted of 314 CKD patients (mean age 67.6), some of whom were receiving dialysis (228, 73%). MEASUREMENTS The main exposures were depression, measured using the Center for Epidemiologic Studies Depression (CES-D) questionnaire, and hopelessness, measured using a recently developed 18-item health-related hope scale (HR-Hope). The outcomes were sarcopenia at baseline and one year after, measured using the SARC-F questionnaire. Logistic regression models were applied. RESULTS The cross-sectional and longitudinal analyses included 314 and 180 patients, respectively. Eighty-nine (28.3%) patients experienced sarcopenia at baseline, and 44 (24.4%) had sarcopenia at the one-year follow-up. More hopelessness (per 10-point lower, adjusted odds ratio [AOR]: 1.33, 95% confidence interval [95% CI] 1.12-1.58), depression (AOR: 1.87, 95% CI 1.003-3.49), age (per 10-year higher, AOR: 1.70, 95% CI 1.29-2.25), being female (AOR: 2.67, 95% CI 1.43-4.98), and undergoing hemodialysis (AOR, 2.92; 95% CI, 1.41-6.05) were associated with a higher likelihood of having baseline sarcopenia. More hopelessness (per 10-point lower, AOR: 1.69, 95% CI 1.14-2.51) and depression (AOR: 4.64, 95% CI: 1.33-16.2) were associated with a higher likelihood of having sarcopenia after one year. CONCLUSIONS Among patients with different stages of CKD, both hopelessness and depression predicted sarcopenia. Provision of antidepressant therapies or goal-oriented educational programs to alleviate depression or hopelessness can be useful options to prevent sarcopenia.
Collapse
Affiliation(s)
- N Kurita
- Noriaki Kurita, MD, PhD, Department of Clinical Epidemiology, Graduate School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima City, Fukushima 960-1295, Japan, Tel: +81-24-547-1471, Fax: +81-24-547-1468, E-mail: , (Twitter handle: @kuritanoriaki)
| | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Sekine A, Watanabe T, Naruse G, Takada A, Fujimoto S, Ozawa N, Shinoda K, Nohisa Y, Okura H. "Locked Tricuspid Valve" in Carcinoid Heart Disease. Circ J 2020; 85:78. [PMID: 33208594 DOI: 10.1253/circj.cj-20-0779] [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: 11/09/2022]
Affiliation(s)
- Ayako Sekine
- Division of Clinical Laboratory, Gifu University Hospital
| | - Takatomo Watanabe
- Division of Clinical Laboratory, Gifu University Hospital.,Department of Cardiology, Gifu University Graduate School of Medicine
| | - Genki Naruse
- Department of Cardiology, Gifu University Graduate School of Medicine
| | - Ayae Takada
- Division of Clinical Laboratory, Gifu University Hospital
| | | | - Noriko Ozawa
- Division of Clinical Laboratory, Gifu University Hospital
| | - Koichi Shinoda
- Division of Clinical Laboratory, Gifu University Hospital
| | - Yuzuru Nohisa
- Division of Clinical Laboratory, Gifu University Hospital
| | - Hiroyuki Okura
- Division of Clinical Laboratory, Gifu University Hospital.,Department of Cardiology, Gifu University Graduate School of Medicine
| |
Collapse
|
19
|
Sumarto BKA, Kobayashi H, Kakioka R, Tanaka R, Maeda K, Tran HD, Koizumi N, Morioka S, Bounsong V, Watanabe K, Musikasinthorn P, Tun S, Yun LKC, Anoop VK, Raghavan R, Masengi KWA, Fujimoto S, Yamahira K. Latitudinal variation in sexual dimorphism in a freshwater fish group. Biol J Linn Soc Lond 2020. [DOI: 10.1093/biolinnean/blaa166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Abstract
Tropical animals are characterized by showy ornaments and conspicuous body colours as compared with their temperate relatives. Some recent studies have hypothesized that sexual selection pressures are stronger in the tropics than in the temperate zone. Although negative correlations between latitude and the degree of sexual dimorphism would support this hypothesis, phylogeny should be taken into account in such comparative studies. Comparisons of the degree of sexual dimorphism in body size and fin lengths among species of the Adrianichthyidae, a freshwater fish family having a wide geographical range throughout Southeast and East Asia, revealed that lower latitude species are sexually more dimorphic in all characters than higher latitude species. Phylogenetic generalized least squares analyses using a mitochondrial DNA phylogeny demonstrated that the negative correlations between latitude and the degree of sexual dimorphism become non-significant when phylogeny is considered, but that the variance in the degree of sexual dimorphism is explained not only by phylogeny but also almost equally by latitude. Ancestral state reconstruction indicated that sexual dimorphisms have evolved independently even within major clades. These findings are consistent with the view that tropical species are exposed to stronger sexual selection pressures than temperate species. We discuss possible causes of the latitudinal variation in sexual selection pressure.
Collapse
Affiliation(s)
- Bayu K A Sumarto
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Hirozumi Kobayashi
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Ryo Kakioka
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| | - Rieko Tanaka
- World Medaka Aquarium, Nagoya Higashiyama Zoo and Botanical Gardens, Nagoya, Japan
| | - Ken Maeda
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Hau D Tran
- Faculty of Biology, Hanoi National University of Education, Hanoi, Vietnam
| | - Noriyuki Koizumi
- Institute for Rural Engineering, National Agriculture and Food Research Organization, Ibaraki, Japan
| | - Shinsuke Morioka
- Fisheries Division, Japan International Research Center for Agricultural Sciences, Ibaraki, Japan
| | | | | | | | - Sein Tun
- Inlay Lake Wildlife Sanctuary, Nature and Wildlife Conservation Division, Forest Department, Ministry of Natural Resources and Environmental Conservation, Myanmar
| | - L K C Yun
- Inlay Lake Wildlife Sanctuary, Nature and Wildlife Conservation Division, Forest Department, Ministry of Natural Resources and Environmental Conservation, Myanmar
| | - V K Anoop
- School of Ocean Science and Technology, Kerala University of Fisheries and Ocean Studies, Kochi, India
| | - Rajeev Raghavan
- Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies, Kochi, India
| | | | - Shingo Fujimoto
- Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Kazunori Yamahira
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa, Japan
| |
Collapse
|
20
|
Nishikawa H, Taniguchi Y, Ogasawara M, Inotani S, Amano E, Matsumoto T, Hamada-Ode K, Shimamura Y, Horino T, Fujimoto S, Terada Y. AB1050 CLINICAL IMPLICATIONS OF ULTRASONOGRAPHY (US) IN DIAGNOSIS AND MONITORING DISEASE ACTIVITY OF RELAPSING POLYCHONDRITIS (RP) AND COMPARATIVE INVESTIGATION BY US BETWEEN AURICLE OF RP, REPEATED TRAUMA, CELLULITIS AND HEALTHY SUBJECT. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4158] [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
Objectives:To assess the clinical implications of ultrasonography (US) in monitoring disease activity and diagnosis of relapsing polychondritis (RP).Methods:Firstly, auricular (n=5) and nasal (n=1) chondritis of six patients with RP were assessed by US before and after treatments. The relationship between US findings and serum markers were evaluated. Moreover, the comparisons of US findings between the auricle of patients with RP (n=5), repeated trauma (n=5), cellulitis (n=2) and healthy subjects (n=5) were also assessed.Results:US finding before treatment showed low-echoic swollen auricular and nasal cartilage with increased power Doppler signals (PDS) in all cases of RP. US findings corresponded to biopsy findings. After treatment, the swollen ear and nose completely resolved. Then, US findings also showed dramatic reductions in swollen cartilage with the decrease in PDS. Although serum markers completely improved, US finding remained in 1 of 6 cases, and this case showed flare due to PSL tapering. Finally, RP could be differentiated from the damage of repeated trauma and cellulitis by the presence or absence of PDS and subperichondrial serous effusion.Conclusion:US of auricular and nasal cartilage in RP possibly facilitates evaluation of auricular lesions and monitoring of disease activity, especially when we consider the treatment response and the timing of drug tapering.Disclosure of Interests:None declared
Collapse
|
21
|
Ihdayhid AR, Motoyama S, Fujimoto S, Isa M, Nerlekar N, Kato E, Miyajima K, Comella A, Kamo Y, Sarai M, Kawai H, Arakita K, Hislop-Jambrich J, Cameron J, Ko B. P7 The impact of coronary calcification on diagnostic performance of workstation CT derived fractional flow reserve - a multicentre experience. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.014] [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
On-site workstation based computed tomography derived fractional flow reserve (CT-FFR) is an emerging method to assess the vessel specific ischaemia in coronary artery disease (CAD). The impact of coronary calcification on its diagnostic performance is unknown.
Purpose
To evaluate the impact of coronary calcification on the diagnostic performance of reduced-order CT-FFR at detecting vessel specific ischaemia.
Methods
This is a retrospective pooled analysis of 141 patients with suspected CAD enrolled from 3 global centres who underwent CT-coronary angiography (CTA), onsite CT-FFR and invasive FFR. Coronary calcification was assessed by Agatston score (AS). The diagnostic performance of CT-FFR (≤0.8) and CTA (≥50%) in evaluation of vessel specific ischaemia (FFR ≤ 0.8) was assessed across AS quartiles (Q1-4). A comparison of diagnostic performance of the low to mid AS (Q1 to Q3) versus high AS (Q4) was performed.
Results
Mean age and median AS was 65.8 ± 9.9 and 327.3 (interquartile range = 78.5 – 798.1). Diagnostic accuracy, sensitivity and specificity of CT-FFR for low-mid AS (0-798) and high AS (799-4019) were 77.4% vs 82.9%; 78.9% vs 94.7%; 68.8% vs 76.5% respectively with no statistical difference between the two groups. The AUC for ischaemia of CT-FFR in low to mid AS was comparable with AUC in the high AS (0.76 [95% CI: 0.66-0.86] vs 0.84 [0.69-0.99]; P = 0.397). The AUC for ischemia for CT-FFR in both low to mid AS and high AS was significantly higher than for CTA (0.76 [0.66-0.86] vs 0.57 [0.50-0.64]; P = 0.003 and 0.84 [0.69-0.99] vs 0.48 [0.38-0.57]; P < 0.001 respectively).
Conclusion
On-site workstation CT-FFR demonstrated consistently high diagnostic performance in patients with high AS. Its diagnostic performance was superior when compared with significant stenosis assessment on CTA across all spectrum of Agatston scores.
Collapse
Affiliation(s)
- A R Ihdayhid
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - S Motoyama
- Fujita Health University, Department of Cardiology, Fujita, Japan
| | - S Fujimoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Isa
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - N Nerlekar
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - E Kato
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Miyajima
- Fujita Health University, Department of Cardiology, Fujita, Japan
| | - A Comella
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - Y Kamo
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Sarai
- Fujita Health University, Department of Cardiology, Fujita, Japan
| | - H Kawai
- Fujita Health University, Department of Cardiology, Fujita, Japan
| | - K Arakita
- Canon Medical Systems Japan, Otawara, Japan
| | | | - J Cameron
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - B Ko
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| |
Collapse
|
22
|
Kazuyori T, Seki Y, Sato A, Fujimoto S, Yamada M, Yamanaka Y, Fujisaki I, Odashima K, Seki A, Ishikawa T, Kuwano K. P2.16-32 Best Supportive Care for Extreme Elderly Lung Cancer Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
23
|
Ihdayhid AR, Fujimoto S, Motoyama S, Comella A, Kato E, Miyajima K, Isa M, Kamo Y, Sarai M, Kawai H, Arakita K, Hislop-Jambrich J, Cameron J, Seneviratne S, Ko B. P6187Multicentre diagnostic performance of on-site workstation CT derived fractional flow reserve. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0793] [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
On-site workstation based computed tomography derived fractional flow reserve (CT-FFR) is an emerging method to assess vessel specific ischaemia in coronary artery disease (CAD). Global data on its diagnostic performance when compared with CT coronary angiography (CTA) is limited.
Purpose
To evaluate the on-site multicentre diagnostic performance of reduced-order CT-FFR at detecting vessel specific ischaemia.
Method
This is a retrospective pooled analysis of 141 patients (204 vessels) with suspected CAD enrolled from 3 global centres who underwent CTA, onsite CT-FFR and invasive FFR. On-site CT-FFR was performed using a reduced order model on a standard desktop computer with dedicated software. The per vessel diagnostic performance of CT-FFR (≤0.8) for vessel specific ischemia (FFR≤0.8) was compared with CTA (≥50% stenosis).
Results
Mean age was 65.8±9.9, 70.7% were male. FFR significant stenosis was present in 34.3% (70/204) of vessels. Pearson correlation of CT-FFR for invasive FFR was 0.52, P<0.001. Bland Altman analysis demonstrated a mean difference of 0.06±0.15 (95% limits of agreement −0.22 to 0.35). Per vessel diagnostic accuracy, sensitivity and specificity of CT-FFR and CTA were 79.9% vs 53.5%; 78.6% vs 85.7%; 80.6% vs 35.9% respectively. Diagnostic performance as assessed by area under the receiver operator curve (AUC) for CT FFR was superior to CTA (0.82 [95% CI 0.76–0.88] vs 0.61 [0.55–0.67]; P<0.001).
Conclusion
On-site workstation CT-FFR demonstrated high per vessel diagnostic performance and was superior when compared with CTA in assessment of vessel specific ischaemia as assessed by invasive FFR in a multicentre setting.
Collapse
Affiliation(s)
- A R Ihdayhid
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - S Fujimoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - S Motoyama
- Fujita Health University, Department of Cardiology, Fujita, Japan
| | - A Comella
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - E Kato
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Miyajima
- Fujita Health University, Department of Cardiology, Fujita, Japan
| | - M Isa
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - Y Kamo
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Sarai
- Fujita Health University, Department of Cardiology, Fujita, Japan
| | - H Kawai
- Fujita Health University, Department of Cardiology, Fujita, Japan
| | - K Arakita
- Canon Medical Systems Japan, Otawara, Japan
| | | | - J Cameron
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - S Seneviratne
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| | - B Ko
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Melbourne, Australia
| |
Collapse
|
24
|
Seki Y, Kazuyori T, Sato A, Fujimoto S, Yamada M, Yamanaka Y, Fujisaki I, Odashima K, Seki A, Ishikawa T, Kuwano K. P2.16-07 How to Manage Toxicities of EGFR-TKI for Extreme Elderly Lung Cancer Patients: Supportive Care for Patients Aged 85 and Older. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1874] [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: 11/15/2022]
|
25
|
Aoshima C, Fujimoto S, Kawaguchi Y, Dohi T, Kato E, Takamura K, Kamo Y, Hiki M, Kato Y, Okai I, Okazaki S, Kumamaru K, Daida H. P6173Plaque characteristics on coronary CT angiography in case of discordance between fractional flow reserve (FFR) and instantaneous wave-free ratio (IFR). Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0779] [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 usefulness of fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) evaluation has been confirmed in the determination of revascularization of coronary artery disease. When FFR≤0.8 and iFR≤0.89 were regarded as the criteria for positivity, the discordance was noted in approximately 20%, but this cause has not been well established.
Purpose
The purpose of this study was to investigate the patient background and features on coronary CT angiography (CCTA) showing the discordance between FFR≤0.8 and iFR≤0.89.
Methods
The subjects were consecutive 85 cases with 108 vessels in which stenosis of 30–90% was detected at one vessel of at least 2mm or more in the major epicardial vessels and FFR and iFR was performed within subsequent 90 days, among suspected cases of coronary arterial diseases which underwent CCTA. The factors showing the discordance between FFR and iFR (patient background, coronary artery calcification score, high risk plaque features on CCTA (positive remodeling, low attenuation plaque), plaque characteristics by a plaque analysis software using a new algorithm called labeling method (vessel volume, plaque volume, lumen volume, plaque length, maximum plaque burden, necrotic core area, fibrous area and calcium area) were evaluated using logistic regression analysis on per-patient and per-vessel basis.
Results
There were no significant both FFR and iFR positive definite factors on per-patient basis. The lumen volume/vessel volume (OR: 0.93, 95% CI: 0.88–0.98, P=0.0032) (OR: 0.90, 95% CI: 0.85–0.95, P<0.0001),minimum lumen area (MLA) (OR: 0.59, 95% CI: 0.41–0.85, P=0.0006) (OR: 0.64, 95% CI: 0.44–0.92, P=0.0047), the plaque volume/vessel volume (OR: 1.05, 95% CI: 1.01–1.10, P=0.0114) (OR: 1.09, 95% CI: 1.04–1.15, P=0.0002) and maximum plaque burden (OR: 1.08, 95% CI: 1.01–1.15, P=0.0095) (OR: 1.06, 95% CI: 1.00–1.13, P=0.0406) were significant both FFR and iFR positive definite factors on per-vessels basis. Discordance between FFR≤0.8 and iFR≤0.89 was observed in 23 vessels (21.3%) of 19 patients. In FFR positive and iFR negative group (15 vessels, 13.9%), positive remodeling (PR) (OR: 4.38, 95% CI: 1.13–17.00, P=0.0294) was only significant predictor. In FFR negative and iFR positive group, there was no significant predictors.
Conclusions
In both FFR and iFR, only lumen volume /vessel volume, MLA, plaque volume/vessel volume and plaque burden were significant positive definite factors. As for the discordance between FFR and iFR, PR is significant predictor in FFR positive and iFR negative group.
Collapse
Affiliation(s)
- C Aoshima
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - S Fujimoto
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Y Kawaguchi
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - T Dohi
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - E Kato
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - K Takamura
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Y Kamo
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - M Hiki
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Y Kato
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - I Okai
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - S Okazaki
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - K Kumamaru
- Juntendo University Graduate School of Medicine, Radiology, Tokyo, Japan
| | - H Daida
- Juntendo University Graduate School of Medicine, Tokyo, Japan
| |
Collapse
|
26
|
Sutra N, Kusumi J, Montenegro J, Kobayashi H, Fujimoto S, Masengi KWA, Nagano AJ, Toyoda A, Matsunami M, Kimura R, Yamahira K. Evidence for sympatric speciation in a Wallacean ancient lake. Evolution 2019; 73:1898-1915. [DOI: 10.1111/evo.13821] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 08/03/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Nobu Sutra
- Tropical Biosphere Research CenterUniversity of the Ryukyus Okinawa 903‐0213 Japan
| | - Junko Kusumi
- Faculty of Social and Cultural StudiesKyushu University Fukuoka 819‐0395 Japan
| | - Javier Montenegro
- Tropical Biosphere Research CenterUniversity of the Ryukyus Okinawa 903‐0213 Japan
| | - Hirozumi Kobayashi
- Tropical Biosphere Research CenterUniversity of the Ryukyus Okinawa 903‐0213 Japan
| | - Shingo Fujimoto
- Graduate School of MedicineUniversity of the Ryukyus Okinawa 903‐0125 Japan
| | | | | | - Atsushi Toyoda
- Comparative Genomics LaboratoryNational Institute of Genetics Mishima 411‐8540 Japan
| | | | - Ryosuke Kimura
- Graduate School of MedicineUniversity of the Ryukyus Okinawa 903‐0125 Japan
| | - Kazunori Yamahira
- Tropical Biosphere Research CenterUniversity of the Ryukyus Okinawa 903‐0213 Japan
| |
Collapse
|
27
|
MINAKAWA A, Shinya K, Nishizono R, Kikuchi M, Sato Y, Fujimoto S. SUN-010 REDUCING 'PODOCYTE DENSITY' MIGHT PREDICTS FSGS BUT NOT MCD IN CASE OF NEPHROTIC SYNDROME. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
28
|
SHINYA K, Minakawa A, Ishizaki Y, Ochiai S, Asou K, Nishizono R, Kikuchi M, Inagaki H, Sato Y, Fujimoto S. MON-011 A CASE SERIES OF MONOCLONAL GAMMOPATHY OF RENAL SIGNIFICANCE (MGRS) IN THE CONTEXT OF MONOCLONAL IMMUNOGLOBULIN DETECTION. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
29
|
Sai E, Shimada K, Yokoyama T, Hiki M, Aikawa T, Ouchi S, Aoshima C, Kawaguchi Y, Miyazaki T, Fujimoto S, Tamura Y, Aoki S, Watada H, Kawamori R, Daida H. P192Associations between ectopic fat accumulations and cardio-metabolic factors in apparently healthy subjects: assessed by 1H-magnetic resonance spectroscopy in myocardium, liver, and skeletal muscles. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.054] [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)
- E Sai
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Shimada
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Yokoyama
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Hiki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Aikawa
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - S Ouchi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - C Aoshima
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - Y Kawaguchi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Miyazaki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - S Fujimoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - Y Tamura
- Juntendo University Graduate School of Medicine, Department of Metabolism and Endocrinology, Tokyo, Japan
| | - S Aoki
- Juntendo University Graduate School of Medicine, Department of Radiology, Tokyo, Japan
| | - H Watada
- Juntendo University Graduate School of Medicine, Department of Metabolism and Endocrinology, Tokyo, Japan
| | - R Kawamori
- Juntendo University Graduate School of Medicine, Department of Metabolism and Endocrinology, Tokyo, Japan
| | - H Daida
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| |
Collapse
|
30
|
Tsurui-Sato K, Fujimoto S, Deki O, Suzuki T, Tatsuta H, Tsuji K. Reproductive interference in live-bearing fish: the male guppy is a potential biological agent for eradicating invasive mosquitofish. Sci Rep 2019; 9:5439. [PMID: 30931976 PMCID: PMC6443680 DOI: 10.1038/s41598-019-41858-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/18/2019] [Indexed: 11/27/2022] Open
Abstract
The eradication of invasive exotic species is desirable but often infeasible. Here, we show that male guppies are a potential biological agent for eradicating invasive mosquitofish through the mechanism of reproductive interference, which is defined as any sexual behavior erratically directed at a different species that damages female and/or male fitness. Together with decades of data on species distribution, our field surveys suggest that mosquitofish initially became established on Okinawa Island before being replaced by the more recently introduced guppies. More importantly, our laboratory experiments suggest that reproductive interference was one of the mechanisms underlying this species exclusion, and that in this case, the negative effects were asymmetric, i.e., they only impacted mosquitofish. Reproductive interference may offer a safer and more convenient method of biological control than the traditional sterile male release method because radiation is not necessary.
Collapse
Affiliation(s)
- K Tsurui-Sato
- Center for Strategic Research Project, University of the Ryukyus, Sembaru, Nishihara, Okinawa, 903-0213, Japan.
| | - S Fujimoto
- Center for Strategic Research Project, University of the Ryukyus, Sembaru, Nishihara, Okinawa, 903-0213, Japan
| | - O Deki
- Department of Agro-Environmental Sciences, Faculty of Agriculture, University of the Ryukyus, Sembaru, Nishihara, Okinawa, 903-0213, Japan
| | - T Suzuki
- Department of Agro-Environmental Sciences, Faculty of Agriculture, University of the Ryukyus, Sembaru, Nishihara, Okinawa, 903-0213, Japan
| | - H Tatsuta
- Department of Agro-Environmental Sciences, Faculty of Agriculture, University of the Ryukyus, Sembaru, Nishihara, Okinawa, 903-0213, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, Korimoto 1-21-24, Kagoshima, 890-8580, Japan
| | - K Tsuji
- Department of Agro-Environmental Sciences, Faculty of Agriculture, University of the Ryukyus, Sembaru, Nishihara, Okinawa, 903-0213, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, Korimoto 1-21-24, Kagoshima, 890-8580, Japan
| |
Collapse
|
31
|
Kojima F, Fujimoto S. In vitro penetrability of Anisakis simplex larvae. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
32
|
Fujimoto S, Kojima F. Efficient isolation of therapeutic erythromycin-resistant Campylobacter. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
33
|
Kato E, Fujimoto S, Kawaguchi Y, Kumamaru K, Dohi T, Takamura K, Aoshima C, Hiki M, Kato Y, Okazaki S, Daida H. 3286Incremental diagnostic value of CT-fractional flow reserve using subtraction coronary CT angiography for patients with severe calcification. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3286] [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: 11/12/2022] Open
Affiliation(s)
- E Kato
- Juntendo University, Cardiology, Tokyo, Japan
| | - S Fujimoto
- Juntendo University, Cardiology, Tokyo, Japan
| | - Y Kawaguchi
- Juntendo University, Cardiology, Tokyo, Japan
| | - K Kumamaru
- Juntendo University, Radiology, Tokyo, Japan
| | - T Dohi
- Juntendo University, Cardiology, Tokyo, Japan
| | - K Takamura
- Juntendo University, Cardiology, Tokyo, Japan
| | - C Aoshima
- Juntendo University, Cardiology, Tokyo, Japan
| | - M Hiki
- Juntendo University, Cardiology, Tokyo, Japan
| | - Y Kato
- Juntendo University, Cardiology, Tokyo, Japan
| | - S Okazaki
- Juntendo University, Cardiology, Tokyo, Japan
| | - H Daida
- Juntendo University, Cardiology, Tokyo, Japan
| |
Collapse
|
34
|
Moon D, Fujimoto S, Oyoyo U. 3:09 PM Abstract No. 132 Complete stasis embolization may convey survival benefit in hepatocellular carcinoma patients treated with doxorubicin eluting bead transcatheter arterial chemoembolization. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
|
35
|
Mokodongan DF, Montenegro J, Mochida K, Fujimoto S, Ishikawa A, Kakioka R, Yong L, Mulis, Hadiaty RK, Mandagi IF, Masengi KW, Wachi N, Hashiguchi Y, Kitano J, Yamahira K. Phylogenomics reveals habitat-associated body shape divergence in Oryzias woworae species group (Teleostei: Adrianichthyidae). Mol Phylogenet Evol 2018; 118:194-203. [DOI: 10.1016/j.ympev.2017.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/11/2017] [Accepted: 10/04/2017] [Indexed: 12/24/2022]
|
36
|
Taniguchi Y, Nishikawa H, Amano E, Fujimoto S, Terada Y. Ultrasonographic findings as diagnostic and follow-up tool in cranial giant cell arteritis. QJM 2017; 110:851-852. [PMID: 29024993 DOI: 10.1093/qjmed/hcx174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Taniguchi
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Nankoku, Kochi, Japan
| | - H Nishikawa
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Nankoku, Kochi, Japan
| | - E Amano
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Nankoku, Kochi, Japan
| | - S Fujimoto
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Nankoku, Kochi, Japan
| | - Y Terada
- Department of Endocrinology, Metabolism and Nephrology, Kochi Medical School, Nankoku, Kochi, Japan
| |
Collapse
|
37
|
Kim Y, Ozawa T, Mashiko T, Koide R, Shimazaki H, Matsuura T, Fujimoto S. Cerebrovascular complications of orbital apex inflammatory disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3398] [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]
|
38
|
Ozawa T, Chiba Y, Kim Y, Mashiko T, Tada M, Koide R, Shimazaki H, Matsuura T, Fujimoto S. Trigeminal herpes zoster with a long-segmental enhanced lesion of the spinal trigeminal nucleus and tract on magnetic resonance imaging. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
39
|
Shimazaki H, Sugaya R, Yoneyama N, Mashiko T, Kim Y, Ozawa T, Koide R, Matsuura T, Fujimoto S. Spastic paraplegia with cerebral white matter changes. Three cases with different gene mutations. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2003] [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]
|
40
|
Naoi T, Morita M, Kawakami T, Fujimoto S. Various ophthalmological findings and possible underlying mechanisms in patients with brainstem and thalamic infarction. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1779] [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: 11/27/2022]
|
41
|
Miyata Y, Ishii K, Kojima A, Yamaguchi T, Fujimoto S, Kaidou N, Kakiuchi H, Cho T. Detection of Bounce Ions by Use of Charge Exchange Bounce Ion Analyzer. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Miyata
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, JAPAN
| | - K. Ishii
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, JAPAN
| | - A. Kojima
- Fusion Research and Development, Japan Atomic Energy Agency, Ibaraki 311-0913, JAPAN
| | - T. Yamaguchi
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, JAPAN
| | - S. Fujimoto
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, JAPAN
| | - N. Kaidou
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, JAPAN
| | - H. Kakiuchi
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, JAPAN
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, JAPAN
| |
Collapse
|
42
|
|
43
|
Kubota K, Miyanaga A, Hosomi Y, Okuma Y, Minato K, Fujimoto S, Takiguchi Y, Okamoto H, Hattori Y, Isobe H, Aono H. Phase II trial of S-1 plus cisplatin combined with bevacizumab for advanced non-squamous non-small cell lung cancer (TCOG LC-1202). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw391.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
44
|
Ono K, Fujimoto S, Hayashi S, Hioki K, Miyazawa M, Akagi Y, Hirokawa Y. SU-G-BRB-17: Dosimetric Evaluation of the Respiratory Interplay Effect During VMAT Delivery Using IPAGAT Polymer Gel Dosimeter. Med Phys 2016. [DOI: 10.1118/1.4956924] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
45
|
Ono K, Fujimoto S, Hayashi S, Miyazawa M, Akagi Y, Hirokawa Y. SU-E-T-318: Dosimetric Evaluation of ArcCHECK and 3DVH System Using Customized Polymer Gel Dosimeter. Med Phys 2015. [DOI: 10.1118/1.4924679] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
46
|
Fujimoto S, Kon N, Otaka Y, Yamaguchi T, Osu R, Kondo K, Tanaka S. Transcranial direct current stimulation improves tactile discrimination in stroke patients. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
47
|
Yatabe T, Taniguchi Y, Nishiyama M, Inoue K, Ikezoe T, Fujimoto S, Terada Y, Yokoyama M. Lactic acidosis and asymptomatic hypoglycaemia due to plasmablastic lymphoma. Anaesth Intensive Care 2015; 43:416-417. [PMID: 25943618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
|
48
|
Aoki K, Dohi Y, Kojima M, Fujimoto S. Abnormality in sarcoplasmic reticulum-dependent arterial contraction in responses to caffeine and noradrenaline in spontaneously hypertensive rats. Contrib Nephrol 2015; 90:19-24. [PMID: 1959346 DOI: 10.1159/000420118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We studied caffeine- and noradrenaline-induced contraction in tail arteries from 4-week-old male SHR and age- and sex-matched WKY. After the sarcoplasmic reticulum Ca2+ had been depleted by the Ca(2+)-free EGTA (0.1 mmol/l) solution, the caffeine (10 mmol/l)-induced contractions in a low-Ca2+ (0.5 mmol/l) solution were smaller in SHR than in WKY. After the sarcoplasmic reticulum had been loaded with Ca2+ in physiological Ca2+ (2.5 mmol/l) solution, caffeine- and noradrenaline (10(-5) mol/l)-induced contractions in a Ca(2+)-free EGTA solution were smaller in SHR than in WKY. The Ca2+ concentration-tension relationship in skinned arterial fibres was similar in WKY and SHR. These data suggest that the ability of the sarcoplasmic reticulum to take up Ca2+ and store Ca2+ is decreased in SHR. The decreased take up and store of Ca2+ may increase cytosolic Ca2+, which elevates arterial resistance and develops hypertension in gene hypertension.
Collapse
Affiliation(s)
- K Aoki
- Second Department of Internal Medicine, Nagoya City University Medical School, Japan
| | | | | | | |
Collapse
|
49
|
|
50
|
Kawajiri M, Yoshida K, Fujimoto S, Mokodongan DF, Ravinet M, Kirkpatrick M, Yamahira K, Kitano J. Ontogenetic stage-specific quantitative trait loci contribute to divergence in developmental trajectories of sexually dimorphic fins between medaka populations. Mol Ecol 2014; 23:5258-75. [PMID: 25251151 DOI: 10.1111/mec.12933] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 09/16/2014] [Accepted: 09/17/2014] [Indexed: 11/29/2022]
Abstract
Sexual dimorphism can evolve when males and females differ in phenotypic optima. Genetic constraints can, however, limit the evolution of sexual dimorphism. One possible constraint is derived from alleles expressed in both sexes. Because males and females share most of their genome, shared alleles with different fitness effects between sexes are faced with intralocus sexual conflict. Another potential constraint is derived from genetic correlations between developmental stages. Sexually dimorphic traits are often favoured at adult stages, but selected against as juvenile, so developmental decoupling of traits between ontogenetic stages may be necessary for the evolution of sexual dimorphism in adults. Resolving intralocus conflicts between sexes and ages is therefore a key to the evolution of age-specific expression of sexual dimorphism. We investigated the genetic architecture of divergence in the ontogeny of sexual dimorphism between two populations of the Japanese medaka (Oryzias latipes) that differ in the magnitude of dimorphism in anal and dorsal fin length. Quantitative trait loci (QTL) mapping revealed that few QTL had consistent effects throughout ontogenetic stages and the majority of QTL change the sizes and directions of effects on fin growth rates during ontogeny. We also found that most QTL were sex-specific, suggesting that intralocus sexual conflict is almost resolved. Our results indicate that sex- and age-specific QTL enable the populations to achieve optimal developmental trajectories of sexually dimorphic traits in response to complex natural and sexual selection.
Collapse
Affiliation(s)
- Maiko Kawajiri
- Ecological Genetics Laboratory, National Institute of Genetics, Yata 1111, Mishima, Shizuoka, 411-8540, Japan
| | | | | | | | | | | | | | | |
Collapse
|