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- 저자 : Haruko Takano (검색결과 2 건)
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Spatial Allocation and Specification of Cardiomyocytes during Zebrafish Embryogenesis
Hajime Fukui,Ayano Chiba,Takahiro Miyazaki,Haruko Takano,Hiroyuki Ishikawa,Naoki Mochiuzki,Toyonori Omori 대한심장학회 2017 Korean Circulation Journal Vol.47 No.2
Incomplete development and severe malformation of the heart result in miscarriage of embryos because of its malfunction as a pump for circulation. During cardiogenesis, development of the heart is precisely coordinated by the genetically-primed program that is revealed by the sequential expression of transcription factors. It is important to investigate how spatial allocation of the heart containing cardiomyocytes and other mesoderm-derived cells is determined. In addition, the molecular mechanism underlying cardiomyocyte differentiation still remains elusive. The location of ectoderm-, mesoderm-, and endoderm-derived organs is determined by their initial allocation and subsequent mutual cell-cell interactions or paracrine-based regulation. In the present work, we provide an overview of cardiac development controlled by the germ layers and discuss the points that should be uncovered in future for understanding cardiogenesis.
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Cardiac Rehabilitation Increases Exercise Capacity with a Reduction of Oxidative Stress
Taira Fukuda,Miwa Kurano,Kazuya Fukumura,Tomohiro Yasuda,Haruko Iida,Toshihiro Morita,Yumiko Yamamoto,Nami Takano,Issei Komuro,Toshiaki Nakajima 대한심장학회 2013 Korean Circulation Journal Vol.43 No.7
Background and Objectives: Reactive oxygen species (ROS) mediate various signaling pathways that underlie vascular inflammation in atherogenesis and cardiovascular diseases. Cardiac rehabilitation (CR) has a variety of multiple beneficial effects, including anti-inflam -matory effects. The purpose of the present study was to investigate the effects of CR on ROS in patients with cardiovascular diseases. Subjects and Methods: The serum level of derivatives of reactive oxidative metabolites, an index of oxidative stress, was measured in 100 patients with cardiovascular diseases before, and, subsequently, 3 and 6 months after, CR. A biological antioxidant potential (BAP) test was applied to assess the antioxidant power of the serum. Results: The resting reactive oxidative metabolite levels decreased 3-6 months after CR {pre: 351±97 Carratelli unit (CARR U), 3 months:329±77 CARR U, 6 months: 325±63 CARR U, all p<0.01} with the increase of the percentage of the predicted values of V˙O 2 peak and the percentage of the predicted values of V˙O 2 at the anaerobic threshold (V˙O 2 AT ) and the decrease of the B-type natriuretic peptide (BNP). The BAP test and antioxidative/oxidative stress ratio increased 6 months after CR. The % changes of the antioxidative/oxidative stress ratio was positively correlated with the % changes of V˙O 2 AT , and negatively correlated with the % changes of the BNP. Conclusion: These results suggest that intensive supervised CR significantly improved exercise capacity, which may be attributable to an adaptive response involving more efficient oxidative metabolites or the increased capacity of endogenous anti-oxidative systems in pa -tients with cardiovascular diseases.
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