Welcome to our book review site go-pdf.online!
You may have to Search all our reviewed books and magazines, click the sign up button below to create a free account.
The Holstein Papers: Volume 2, Diaries
This second volume of Friedrich von Holstein's work, Bismarck's subordinate at the German Foreign Office, containing his diaries.
The Holstein Papers
None
The Fate of the Male Germ Cell
THE FASCINATION The male germ cell is the only cell of the human organism that leaves the body when it has achieved its final, highly sophisticated structure and properties. The male germ cell is designed for one purpose only: to reach the female gametes and to fertilize them. The various stages in the development of the male germ cell are characterized by proliferative phases, by the recombination of the maternal and paternal chromosomes, and by the differentiation and development of a specialized transport vehicle, the spermato zoon. Furthermore, the establishment of a special pool of stem cells, the spermatogonia, guarantees the continuity of the sperm-generation process from puberty to o...
The Neuroendocrine Leydig Cells and their Stem Cell Progenitors, the Pericytes
cells, and the testicular localization of the intermediate filament protein nestin, known to be expressed in neural stem cells, by our group was the first step to define mural cells (pericytes and vascular smooth muscle cells) of the testis microvascu- ture as the stem/progenitor cells of the adult Leydig cells. In summary, we were able to demonstrate specific proliferation of vascular progenitors and their subsequent transdifferentiation into steroidogenic Leydig cells, which – in addition – rapidly acquire neuronal and glial properties. Since both newly developed fetal and adult Leydig cell populations show the same features, a common origin of both popu- tions seems likely. Pericytes ...
The Holstein Papers: Volume 4, Correspondence 1897-1909
The fourth volume of Friedrich von Holstein, Bismarck's subordinate at the German Foreign Office, containing his correspondence, 1897-1909.
