Biomaterial Database

Secondary amyloidosis of the testis: an electron microscopic and histochemical study. 1989

M Nistal, and L Santamaria, and J Codesal, and R Paniagua

Department of Morphology, School of Medicine, Autonomous University of Madrid, Spain.

A histochemical and ultrastructural study of the testes, epididymides and spermatic cords from 6 adult men with amyloidosis secondary to several diseases is described. Amyloid fibrils, consisting mainly of AA protein, were deposited in the walls of blood vessels of the testis, epididymis and spermatic cord, as well as in the tunica propria of the seminiferous tubules. The seminiferous epithelium showed slight hypospermatogenesis. Many Leydig cells exhibited unstained 'bar' or 'arc'-shaped cytoplasmic areas similar to the cholesterol deposits of Leydig cells in adrenoleukodystrophy.

UI	MeSH Term	Description	Entries
D007985	Leydig Cells	Steroid-producing cells in the interstitial tissue of the TESTIS. They are under the regulation of PITUITARY HORMONES; LUTEINIZING HORMONE; or interstitial cell-stimulating hormone. TESTOSTERONE is the major androgen (ANDROGENS) produced.	Interstitial Cells, Testicular,Leydig Cell,Testicular Interstitial Cell,Testicular Interstitial Cells,Cell, Leydig,Cell, Testicular Interstitial,Cells, Leydig,Cells, Testicular Interstitial,Interstitial Cell, Testicular
D008297	Male		Males
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
D004822	Epididymis	The convoluted cordlike structure attached to the posterior of the TESTIS. Epididymis consists of the head (caput), the body (corpus), and the tail (cauda). A network of ducts leaving the testis joins into a common epididymal tubule proper which provides the transport, storage, and maturation of SPERMATOZOA.
D006651	Histocytochemistry	Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods.	Cytochemistry
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
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D000685	Serum Amyloid A Protein	An ACUTE PHASE REACTION protein present in low concentrations in normal sera, but found at higher concentrations in sera of older persons and in patients with AMYLOIDOSIS. It is the circulating precusor of amyloid A protein, which is found deposited in AA type AMYLOID FIBRILS.	Amyloid Protein SAA,Amyloid Serum Protein SAA,Serum A Related Protein,Amyloid A Precursor,Amyloid A Protein,Amyloid A Protein-Related Serum Component,Amyloid Fibril Protein AA,Amyloid Protein AA,Amyloid Protein AA Precursor,Amyloid-Related Serum Protein (SAA),Serum Amyloid A,Serum Amyloid Protein A,Amyloid A Protein Related Serum Component