Biomaterial Database

Ultrastructural morphometric features of human sural nerve endoneurial microvessels. 1993

C Giannini, and P J Dyck

Peripheral Neuropathy Research Center, Mayo Clinic, Rochester, MN 55905.

We studied the morphometric features of 366 transversely sectioned endoneurial microvessels in sural nerves from 50 healthy volunteers (mean age 34.5 +/- 15.8, range 20 to 66 years). Nerves were obtained and processed by the same techniques and standards used to study biopsied nerves from patients with neuropathy. Endothelial area, basement membrane area, number of endothelial nuclei and junctions, and number of periendothelial nuclei all increase significantly with vessel size as judged by mural area. Periendothelial cell coverage of endothelial perimeter does not correlate with vessel size. Components of endoneurial microvessels, specifically the area containing basement membrane, do not change significantly with age. The present report provides a detailed characterization of the ultrastructural features of endoneurial microvessels with age in humans and provides optimal reference values for study of microvessel pathologic changes in disease.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008833	Microcirculation	The circulation of the BLOOD through the MICROVASCULAR NETWORK.	Microvascular Blood Flow,Microvascular Circulation,Blood Flow, Microvascular,Circulation, Microvascular,Flow, Microvascular Blood,Microvascular Blood Flows,Microvascular Circulations
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D012016	Reference Values	The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.	Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D001808	Blood Vessels	Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).	Blood Vessel,Vessel, Blood,Vessels, Blood
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000375	Aging	The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.	Senescence,Aging, Biological,Biological Aging