Publication: Types of vascular wall as related to vasa vasorum in common tree shrew (Tupaia glis)
Issued Date
2005-08-15
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ISSN
1059910X
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2-s2.0-26844457029
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Mahidol University
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SCOPUS
Bibliographic Citation
Microscopy Research and Technique. Vol.67, No.6 (2005), 317-324
Suggested Citation
Sununta Chuncher, Reon Somana Types of vascular wall as related to vasa vasorum in common tree shrew (Tupaia glis). Microscopy Research and Technique. Vol.67, No.6 (2005), 317-324. doi:10.1002/jemt.20207 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/16525
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Title
Types of vascular wall as related to vasa vasorum in common tree shrew (Tupaia glis)
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Abstract
Blood vessels of the common tree shrew (Tupaia glis) were embedded in Araldite, sectioned at 0.5-1 μm thickness, and observed with light microscope (LM). It was found that the vascular wall could be classified into three categories: (1) those with proper vasa vasorum (PVV); (2) those with collaborative vasa vasorum in perimural tissues; (3) those without vasa vasorum. The PVV were located in the the tunica media, between the tunica media and the tunica adventitia, and in the tunica adventitia of the vascular wall. On studying the vascular casts with a scanning electron microscope (SEM), it was noted that what appeared to be vasa vasorum did not always conform to those found under the LM. Furthermore, the PVV seen in a particular blood vessel among different tree shrews were not always related to intraluminal partial pressure of oxygen, vascular size, and thickness of the wall. In contrast, the results of this study indicate that the activeness of the vascular wall in varying the amount of blood flow to certain organs is an important factor that is associated with the existence, density, and distribution of the vasa vasorum. © 2005 Wiley-Liss, Inc.