Results 201 to 210 of about 33,731 (224)

The Sensitivity to X Rays of Mouse Spermatogonia That Are Committed to Differentiate and of Differentiating Spermatogonia

Radiation Research, 1992
In the CBA mouse the radiosensitivity of the undifferentiated spermatogonia that are committed to differentiate was determined by counting their more developed descendants 10 days after graded doses of X rays. Decreasing D0 values were found when these differentiating spermatogonia were derived from undifferentiated spermatogonia that were located in ...
Yvonne van der Meer, René Huiskamp, Jan A. G. Davids, Ingeborg van der Tweel, Dirk G. de Rooij, Rene Huiskamp   +5 more
openaire   +2 more sources

Cytotoxicity of ethyl methanesulfonate in mice spermatogonia

Experientia, 1979
Enumeration of different types of spermatogonia, following a single i.p. administration of different doses of ethyl methanesulfonate in mice, showed a survival of A1-A4 and in spermatogonia is markedly reduced due to cell killing while the remaining types of spermatogonia were affected marginally.
D, Bhattacharjee, T K, Shetty, K, Sundaram   +2 more
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Isolated spermatogonia protrude active pseudopodia in vitro

Fertility and Sterility, 2008
When dispersed spermatogenic cells obtained by enzymatic digestion from prepuberal mice, adult male mice, nonazoospermic men and normospermic men were observed live using Normarski optics, it was found that, respectively, 47.4%, 1.4%, 5.1%, and 2.4% of them protruded active pseudopodia.
Atsushi, Tanaka, Motoi, Nagayoshi, Shoichiro, Awata, Norio, Himeno, Izumi, Tanaka, Hiroshi, Kusunoki   +5 more
openaire   +2 more sources

High-Resolution Light Microscopic Characterization of Spermatogonia

2008
It is possible to distinguish the morphological features of the spermatogonial nuclei and nucleoli and to further identify their distinct generations using an appropriate method to fix whole testes via vascular perfusion with glutaraldehyde, postfixation by immersion in reduced osmium, embedding in araldite, and staining of semithin tissue sections.
Hélio, Chiarini-Garcia, Marvin L, Meistrich   +1 more
openaire   +2 more sources

Cytogenetic effects of cyclophosphamide on mouse spermatogonia

Human Genetics, 1975
NMRI mice were treated with single doses of cyclophosphamide (Cytoxan) and spermatogonia were analysed for chromosome aberrations at various time intervals after treatment. The maxima of aberrations were found 24 hrs p.i. Chromatid type aberrations were observed exclusively.
openaire   +2 more sources

In Vitro Differentiation of Spermatogonia

2017
Presence of functional spermatogonial population secures continuing spermatogenesis, by repeated commencement of spermatogenic cycles from them. In vitro manipulation of spermatogonia, thus, can be divided into two aspects: proliferation of spermatogonia for their maintenance and initiation of their differentiation toward sperm formation.
openaire   +1 more source

[Atypical spermatogonias as precancerous conditions].

Schweizerische medizinische Wochenschrift, 1977
Atypical spermatogonia are relatively frequent in the vicinity of testicular teratomas or seminomas. These voluminous cells are seminoma-like, showing broad and clear cytoplasm borders, big nuclei and peculiarly enlarged nucleoli. Atypical spermatogonia usually line the tubules and displace the remaining Sertoli cells towards the middle of the tubules.
I H, Nüesch-Bachmann, , Hedinger Chr
openaire   +1 more source

Spermatogonia

2008
John B. Heppner, David B. Richman, Steven E. Naranjo, Dale Habeck, Christopher Asaro, Jean-Luc Boevé, Johann Baumgärtner, David C. Schneider, Paris Lambdin, Ronald D. Cave, Brett C. Ratcliffe, John B. Heppner, Rebecca W. Baldwin, Clay W. Scherer, J. Howard Frank, James C. Dunford, Louis A. Somma, David. B. Richman, E. S. Krafsur, Allen Crooker, John B. Heppner, John L. Capinera, Fabián D. Menalled, Matt Liebman, John L. Capinera, Peter E. A. Teal, Marjorie A. Hoy, James E. Lloyd, John Sivinski, Whitney Cranshaw, John B. Heppner, John B. Heppner, Peter H. Adler, John B. Heppner, James H. Tsai, Pauline O. Lawrence, Jennifer M. Zaspel, John B. Heppner, John L. Capinera, John B. Heppner, Oscar E. Liburd, Erin M. Sarzynski, Antônio R. Panizzi, Jamie Ellis, Amanda Ellis, Mark Headings, Antônio R. Panizzi, Paul D. Scotti, Peter D. Christian, Lionel Stange, John B. Heppner, John B. Heppner, Rebecca Baldwin, Robert K. Vander Meer, Catherine A. Preston, Gard W. Otis, Joseph W. Noling, Marjorie A. Hoy, Drion G. Bouicas, Allen Sanborn, Antônio R. Panizzi, David W. Ragsdale, John B. Heppner, Anthony Rossi, Marc Branham, Andrei Sourakov, Divina Amalin, Paula E. Cushing, Patrick De Clercq, Daniel C. Peck, Vinton Thompson, David E. Bowles, John L. Capinera, Vincent G. Nealis, John L. Capinera, James E. Cilek, Waldemar Klassen, Erich Tilgner, Miguel Costas, Ángeles Vázquez, Antônio R. Panizzi, Jorge R. Rey, Boris C. Kondratieff, Norbert H. Haunerland, Daniel A. Hahn, Jeffrey C. Lord, Jeyaraney Kathirithamby, Allan T. Showler, Rufolf H. Scheffrahn, Robert L. Meagher, Maria Gallo, Fiona F. Hunter, John B. Heppner, John B. Heppner, John B. Heppner, Dan Gerling, Pierre Jolivet, John L. Capinera, Seiichi Moriya, Marjorie A. Hoy, Roger F. Hou, Pauline O. Lawrence, Beverly Burden, Kun Yan Zhu, George Hangay   +104 more
openaire   +2 more sources

Spermatogonia

2018
Adetunji Fayomi, Sherin David, Chatchanan Doungkamchan, Kyle E. Orwig   +3 more
openaire   +1 more source

Spermatogonia

2009
Makoto C. Nagano, Jonathan R. Yeh, Khaled Zohni   +2 more
openaire   +1 more source