Primary spermatocytes
N acetyl endorphin in rat spermatogonia and primary spermatocytes
... confirmed these previous reports and extended them by showing that the majority of testicular endorphins are acetylated forms, N-acetyl gamma-endorphin, N-acetyl alpha- endorphin, and N-acetyl beta-endorphin1-27. In ...
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Mega-introns in the Dynein Gene DhDhc7(Y) on the Heterochromatic Y Chromosome Give Rise to the Giant Threads Loops in Primary Spermatocytes of Drosophila hydei
... to primary spermatocytes and correlates with the unfolding of species-specific lampbrush loop- like structures resulting from huge transcripts mainly derived from clusters of loop-specific Y chromosomal ...
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FSH initiated differentiation of newt spermatogonia to primary spermatocytes in germ somatic cell reaggregates cultured within a collagen matrix
... be primary spermatocytes in zygotene or early pachytene stages ...newt primary spermatocytes (Yamamoto, et ...into primary spermatocytes in the presence of FSH and somatic ...
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IGF I, IGF II and insulin promote differentiation of spermatogonia to primary spermatocytes in organ culture of newt testes
... both spermatogonia-rich and Sertoli-rich fractions. These results pose several interpretations regarding the mechanism of IGF-I action on spermatogonial differentiation. First, IGF-I directly stimu- lates spermatogonial ...
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X-Y NONDISJUNCTION AND EXCHANGE INDUCED BY X RAYS IN PRIMARY SPERMATOCYTES OF THE ADULT DROSOPHILA
... If the wild-type females are due to induced crossing over, there will appear two classes of non- recombinant females ( y w sn and wild-type) while there will be four nonre[r] ...
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The effects of zinc supplement on fertility in male mice
... cells, primary spermatocytes, histological changes of epididymis slides, the amount of epididymal sperm and relative testis weight were ...and primary spermatocytes were increased ...
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The THO complex is required for nucleolar integrity in Drosophila spermatocytes
... conserved throughout evolution from yeast to human (for a review, see Jimeno and Aguilera, 2010), its exact role in various types of cells at the multicellular organism level is still largely unknown. Recent studies ...
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Morphometrical Study of Seminiferous Tubules of Mice After Using Arsenic and Chlorophytum Borivilianum.
... produces primary spermatocytes. Primary spermatocytes, the largest germ cells in the seminiferous tubules occupy the middle region of the germinal ...The primary spermatocytes ...
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REVERSIBLE ACTION OF JUSSIAEA REPENS (L) INDUCED ALTERATIONS OF HISTOARCHITECHTURE VIS À VIS FUNCTIONS IN TESTICULAR TISSUES OF RAT
... few primary spermatocytes with pyknotic nuclei in seminiferous tubules were predominant in treated groups (Fig ...preleptotene spermatocytes (pLSc), mid pachytene spermatocytes (mPSc) (P < ...
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Key mediators of somatic ATR signaling localize to unpaired chromosomes in spermatocytes
... zygotene spermatocytes, as homologous chromosomes are completing ...prophase, spermatocytes were co-stained with antibodies against γ H2AFX and SCP3 (SYCP3 – Mouse Genome Informatics), a component of the ...
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Bovid microRNAs involved in the process of spermatogonia differentiation into spermatocytes
... regulating miR-221/222 abundance [40]. The induction of miR-let-7 families through the repression of the pluripotency factor LIN28 by RA blocked spermogonial proliferation and promoted the RA-induced spermatogonial ...
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... In primary spermatocytes, the nuclei had fi ne chromatin accumulation and the cytoplasm was copious with a well-developed Golgi complex and aggregated mitochondrial ...
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Regulation of transcription of meiotic cell cycle and terminal differentiation genes by the testis specific Zn finger protein matotopetli
... interconnected primary spermatocytes, which then enter an extended period of growth and gene expression followed by meiotic division to produce a cyst of 64 round ...mature primary ...
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Tombola, a tesmin/TSO1 family protein, regulates transcriptional activation in the Drosophila male germline and physically interacts with Always early
... We conducted a yeast two-hybrid screen to identify proteins that act with Aly to control transcriptional activation in Drosophila primary spermatocytes. Using the C-terminal half of Aly as bait we recovered ...
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Cohesin loading factor Nipbl localizes to chromosome axes during mammalian meiotic prophase
... three primary antibodies and found no significant difference amongst them (data not shown), suggesting that the Nipbl isoforms exhibit indistinguishable localization ...
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Expression of a Testis Specific Nuclear Protein, TRA98, in Mouse Testis during Spermatogenesis A Quantitative and Qualitative Immunoelectron Microscopy (IEM) Analysis
... pachytene spermatocytes, testis-specific histones, tH2A and tH2B, are lost [29], and, instead, H1t appears ...entiating spermatocytes though in varying ...diplotene spermatocytes because in ...
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RNF17, a component of the mammalian germ cell nuage, is essential for spermiogenesis
... Spermatogenesis, the elaborate process by which sperm are produced, is marked by dramatic cell proliferation and differentiation (Russell et al., 1990; Sharpe, 1993). Spermatogenesis can be divided into three phases: ...
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Acid glycohydrolases in rat spermatocytes, spermatids and spermatozoa: enzyme activities, biosynthesis and immunolocalization
... At the ultrastructural level, the enzyme was visualized by the presence of gold particles in the Golgi apparatus, Golgi- associated vesicles and lysosome-like structures present within the spermatocytes and early ...
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RADIATION INDUCED X-Y EXCHANGE AND NONDISJUNCTION IN SPERMATOCYTES OF THE IMMATURE TESTIS OF DROSOPHILA
... I n the above cited work of SAVHAGEN and of STRANGIO, carried out on adult males, the in- crease in the rate of nondisjunction of X and Y chromosomes was taken as[r] ...
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CALCULATING ANCESTRAL INFLUENCE IN MAN: A MATHEMATICAL MEASURE OF THE FACTS OF BISEXUAL HEREDITY
... HAKVEY, ETHEL BROWNE, 1916 A review of the chromosome numbers in the metazoa. L., 1917 The chromosomes of human spermatocytes. The formulae upon which these calculations [r] ...
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