Andreas Miething's Books

The Establishment of Spermatogenesis in the Seminiferous Epithelium of the Pubertal Golden Hamster (Mesocricetus auratus)

By: Andreas Miething

Write a review Read reviews Take a Quiz Solve Book Puzzle

The Establishment of Spermatogenesis in the Seminiferous Epithelium of the Pubertal Golden Hamster (Mesocricetus auratus)

By: Andreas Miething

During pubertal development of the testes, germ cells pass initially through the complete succession of spermatogenic differentiation. Using the golden hamster as a model, this volume presents a comprehensive analysis of that establishing period of mammalian spermatogenesis. Detailed morphological and cell kinetic data of the pubertal seminiferous epithelium reveal a level of cellular organization and synchronization coming near to the adult situation. Characteristic, temporarily occurring perturbations of spermatogenic progression are related to specific delays of Sertoli or Leydig cell maturation, respectively. These results emphasize and specify the close structural and functional interdependence of germ and somatic cell development.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

136

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642720056

ISBN 13

9783642720055

The Origin of a New Progenitor Stem Cell Group in Human Development

An Immunohistochemical-, Light- and Electronmicroscopical Analysis

By: Hubert Wartenberg,Andreas Miething,Kjeld Møllgård

Write a review Read reviews Take a Quiz Solve Book Puzzle

The Origin of a New Progenitor Stem Cell Group in Human Development

An Immunohistochemical-, Light- and Electronmicroscopical Analysis

By: Hubert Wartenberg,Andreas Miething,Kjeld Møllgård

This book presents an overview of a new group of progenitor stem cells. Their origins were originally detected in light- and electron microscopical sections of plastic embedded human embryonal and fetal organs. The distribution of these cells can result in a large quantity of ectopic stem cells. The observation of these ectopic stem cells leads us to postulate the existence of a basic wave of stem cell progenitors. This process proceeds earlier and independently from germ cell migration. This first wave of progenitor stem cell migration initially reaches the peri-aortal AMG-region (Aortal-Mesonephric-Gonadal region). From here, some of these progenitor cells enter the aorta, are distributed through the vascular system and become the embryonal stem cells (reserve cells) in many peripheral tissues. A second part delivers progenitor cells for the adrenal 'anlage'. Within the peripheral Zona definitiva of the adrenal cortex the progenitor cells multiplicate and subsequently leave the adrenal cortex through a gate of the capsule. The progenitor cells arrive at the pre-aortal sympathic plexus ('second brain'). Within the plexus ganglia they form new organ-like clusters, the paraganglia. In a second process the progenitor cells (Chromaffine cells) enter sympathetic nerve bundles. Here an 'axonal migration' starts, which guides the progenitor cells to several peripheral organs. During this migration process the stem cells develop into their final state. In the adrenal cortex the ingrowing nerves guide the stem cells to the adrenal medulla. In the pancreas the ingrowing nerve fibers guide the stem cells to the islets. These newly detected stem cells represent a specific developmental step which is found only in humans.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

Publisher

Springer

Published Date

ISBN 10

3030020509

ISBN 13

9783030020507

The Origin of a New Progenitor Stem Cell Group in Human Development

An Immunohistochemical-, Light- and Electronmicroscopical Analysis

By: Hubert Wartenberg,Andreas Miething,Kjeld Møllgård

Write a review Read reviews Take a Quiz Solve Book Puzzle

The Origin of a New Progenitor Stem Cell Group in Human Development

An Immunohistochemical-, Light- and Electronmicroscopical Analysis

By: Hubert Wartenberg,Andreas Miething,Kjeld Møllgård

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

Publisher

Springer

Published Date

ISBN 10

3030020509

ISBN 13

9783030020507

Book's by Andreas Miething

The Establishment of Spermatogenesis in the Seminiferous Epithelium of the Pubertal Golden Hamster (Mesocricetus auratus)

The Establishment of Spermatogenesis in the Seminiferous Epithelium of the Pubertal Golden Hamster (Mesocricetus auratus)

The Origin of a New Progenitor Stem Cell Group in Human Development

The Origin of a New Progenitor Stem Cell Group in Human Development

The Origin of a New Progenitor Stem Cell Group in Human Development

The Origin of a New Progenitor Stem Cell Group in Human Development

Username

Password

Username

Password

Password again

Birthday

Email