Chapter title |
Ultrastructure of the Subcutaneous Primo-Vascular System in Rat Abdomen.
|
---|---|
Chapter number | 42 |
Book title |
Oxygen Transport to Tissue XXXVIII
|
Published in |
Advances in experimental medicine and biology, January 2016
|
DOI | 10.1007/978-3-319-38810-6_42 |
Pubmed ID | |
Book ISBNs |
978-3-31-938808-3, 978-3-31-938810-6
|
Authors |
Chae Jeong Lim, So Yeong Lee, Pan Dong Ryu |
Editors |
Qingming Luo, Lin Z. Li, David K. Harrison, Hua Shi, Duane F. Bruley |
Abstract |
Recently, we identified the primo-vascular system (PVS), a novel vascular network, in rat subcutaneous tissues. Little is known about the subcutaneous PVS (sc-PVS). Here, we examined the ultrastructure of the sc-PVS in the hypodermis at the rat abdominal midline by electron microscopy. On the surface of sc-PVS, we observed three types of cells: microcells (5-6 μm), large elliptical cells (>20 μm), and erythrocyte (3-4 μm). The inside of the sc-PVS was filled with numerous cells, which can be classified into three major groups: leucocytes, mast cells, and erythrocytes. The dense leucocytes and mast cells were easily noticed. The extracellular matrix of the sc-PVS was mainly composed of extensive fibers (79 ± 6.5 nm) tightly covered by micro- (0.5-1 μm) and nanoparticles (10-100 nm). In conclusion, the ultrastructural features, such as the resident cells on and in the sc-PVS and fiber meshwork covered by particles, indicate that sc-PVS might act as a circulatory channel for the flow and delivery of numerous cells and particles. Our findings will help understand the nature of various sc-PVS beneath-the-skin layers and how they relate to acupuncture meridians. |
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Student > Bachelor | 3 | 38% |
Researcher | 2 | 25% |
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Unknown | 2 | 25% |