High-resolution micro-OCT for endothelial cell visualization in the coronary arteries (Conference Presentation)

Author(s):  
Kensuke Nishimiya ◽  
Osman O. Ahsen ◽  
Biwei Yin ◽  
Zhonglie Piao ◽  
Jiheun Ryu ◽  
...  
2018 ◽  
Vol 71 (11) ◽  
pp. A1350
Author(s):  
Kensuke Nishimiya ◽  
Biwei Yin ◽  
Zhonglie Piao ◽  
Gargi Sharma ◽  
Hany Osman ◽  
...  

2018 ◽  
Vol 39 (suppl_1) ◽  
Author(s):  
K Nishimiya ◽  
B Yin ◽  
Z Piao ◽  
H Osman ◽  
J Ryu ◽  
...  

Author(s):  
Fei Ge ◽  
Qi Pan ◽  
Yue Qin ◽  
Mengping Jia ◽  
Chengchao Ruan ◽  
...  

Vascular aging is a potent driver of cardiovascular and cerebrovascular diseases. Vascular aging features cellular and functional changes, while its molecular mechanisms and the cell heterogeneity are poorly understood. This study aims to 1) explore the cellular and molecular properties of aged cardiac vasculature in monkey and mouse and 2) demonstrate the role of transcription factor BACH1 in the regulation of endothelial cell (EC) senescence and its mechanisms. Here we analyzed published single-cell RNA sequencing (scRNA-seq) data from monkey coronary arteries and aortic arches and mouse hearts. We revealed that the gene expression of YAP1, insulin receptor, and VEGF receptor 2 was downregulated in both aged ECs of coronary arteries’ of monkey and aged cardiac capillary ECs of mouse, and proliferation-related cardiac capillary ECs were significantly decreased in aged mouse. Increased interaction of ECs and immunocytes was observed in aged vasculature of both monkey and mouse. Gene regulatory network analysis identified BACH1 as a master regulator of aging-related genes in both coronary and aorta ECs of monkey and cardiac ECs of mouse. The expression of BACH1 was upregulated in aged cardiac ECs and aortas of mouse. BACH1 aggravated endothelial cell senescence under oxidative stress. Mechanistically, BACH1 occupied at regions of open chromatin and bound to CDKN1A (encoding for P21) gene enhancers, activating its transcription in senescent human umbilical vein endothelial cells (HUVECs). Thus, these findings demonstrate that BACH1 plays an important role in endothelial cell senescence and vascular aging.


Author(s):  
Juhani Knuuti ◽  
Philipp A. Kaufmann

Hybrid scanners combining PET or SPECT with high resolution multi-detector CT are becoming the standard for almost all commercially available nuclear imaging systems. In addition, the newest generation of scanners offers combination of PET with MRI. Hybrid scanners offer the ability to assess the anatomy of the heart and coronary arteries, and the functional evaluation either at stress (for assessment of induced ischaemia), or at rest (for viability) in association with the left ventricular systolic function. Therefore, combining functional information with anatomy by using hybrid systems is appealing.


2004 ◽  
Vol 38 (2) ◽  
pp. 121-126 ◽  
Author(s):  
Li‐ming Gan ◽  
Johannes Wikström ◽  
Göran Bergström ◽  
Birger Wandt

2020 ◽  
Vol 13 (5) ◽  
pp. 1135-1148 ◽  
Author(s):  
Pierre-Francois Lintingre ◽  
Hubert Nivet ◽  
Stéphanie Clément-Guinaudeau ◽  
Claudia Camaioni ◽  
Soumaya Sridi ◽  
...  

2015 ◽  
Vol 45 (8) ◽  
pp. 1146-1152 ◽  
Author(s):  
David M. Biko ◽  
Claudia Chung ◽  
David M. Hitt ◽  
Gregory Kurio ◽  
Olaf Reinhartz ◽  
...  

1988 ◽  
Vol 63 (5) ◽  
pp. 903-910 ◽  
Author(s):  
R A Cohen ◽  
K M Zitnay ◽  
C C Haudenschild ◽  
L D Cunningham

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