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cryptorchidism: ultrastructure of normal and cryptorchid testis development (en Inglés)
F. Hadziselimovic
(Autor)
·
Springer
· Tapa Blanda
cryptorchidism: ultrastructure of normal and cryptorchid testis development (en Inglés) - Hadziselimovic, F.
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Origen: Estados Unidos
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Reseña del libro "cryptorchidism: ultrastructure of normal and cryptorchid testis development (en Inglés)"
Cytological techniques have greatly improved in the last twenty years, largely as a result of further development of the microscope. Electron microscopy, in particular, has opened up great prospects for the study of cell morphology, while the develop- ment of radio-immuno-assay has brought great progress in endocrinology. The applica- tion of these two techniques, which are complementary to each other and provide mutually supporting evidence, is the subject of this monograph. The work is divided into two parts. The first deals with the ultrastructure of normal testicular development, describing four main elements of the testicle - the germ cells, the Sertoli cells, the peri tubular connective tissue and the Leydig cell- with details of their individual development. To make the electron micrographs more easily understandable, diagrams have been used to explain the most important points. The second part deals with cryptorchid testicles, including the primary and sec- ondary changes involved and morphometric studies of the secondary changes. The significance of these ultrastructural observations for the treatment of cryptorchidism is emphasized. With the aid of radio-immuno-assay the level of testosterone in cryp- torchid mice was determined and comparisons drawn between the ultrastructural changes in cryptorchidism in mouse and man. The experimental studies served as a basis for the hypothesis that, in all probability, a congenital disturbance of the hy- pothalamo-hypophyso-gonadal axis is responsible for cryptorchidism. I hope that this monograph will contribute towards a better understanding of normal and cryptorchid testicular development and of the etiology of cryptorchidism.
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