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Dissertations / Theses on the topic 'Spermatocytes'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 April 2022

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1

Redhouse, Juliet Lauren. "The nuclear organisation of Drosophila melanogaster primary spermatocytes." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611384.

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2

Crichton, James Hugh. "Dissecting the meiotic defects of Tex19.1-/- mouse spermatocytes." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/21042.

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The maintenance of genomic stability through suppression of retrotransposon activity is vital for the avoidance of potentially mutagenic genomic disruption caused by retrotransposition. Germline development is a particularly important phase for retrotransposon silencing as retrotransposition events here have the potential for transmission to the entire embryo, threatening the health of offspring. A collection of germline genome defence genes are required for the suppression of retrotransposons in the developing germline of male mice (e.g. Tex19.1, Dazl, Mili, Miwi2, Gasz, Mov10l1, Mael, Dnmt3l

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3

Messina, Kari Lynn. "SPE-7, a Novel Regulator of MSP Assembly in C elegans Spermatocytes." W&M ScholarWorks, 2012. https://scholarworks.wm.edu/etd/1539626928.

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4

Lassen, Paula Graziela. "Morfometria e desenvolvimento das gônadas de tilápias (Oreochromis niloticus) suplementadas com sal mineral composto por cobre, manganês e zinco." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/143757.

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O objetivo deste trabalho foi o de avaliar o efeito da suplementação da dieta de Tilápias (Oreochromis niloticus) utilizando sal comercial composto dos microminerais cobre, manganês e zinco, sobre a histologia e o desenvolvimento das gônadas dos machos. Foram utilizados 1200 machos masculinizados de tilápia, com média de peso de 120g, suplementadas com níveis crescentes (0,00; 0,35; 0,70; 1,05; 1,40 e 1,75 mg/kg) de um produto comercial composto por Cu 13,40 g/kg; Mn 26,70 g/kg e Zn 66,70 g/kg. O experimento foi conduzido em um sistema de recirculação de água, composto por 24 tanques divididos

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5

Perrin, Jeanne. "La méïose spermatocytaire : anomalies méiotiques chez les hommes infertiles et évaluation d'un modèle d'étude in vitro." Aix-Marseille 2, 2008. http://www.theses.fr/2008AIX20661.

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L’analyse cytogénétique des chromosomes méiotiques révèle chez les Hommes infertiles des anomalies de ségrégation chromosomique, corrélées à la sévérité de l’altération de la spermatogenèse. Notre travail évalue le taux d’asynapsis dans les spermatocytes au stade pachytène de la méiose, chez des patients présentant une infertilité d’origine obstructive (O) ou non obstructive (NO) et chez un patient porteur d’une microdélétion AZFb du chromosome Y. 41 patients et 13 témoins sont étudiés : au total, 2931 noyaux pachytène sont analysés (coloration au Giemsa, immunofluorescence). Le taux moyen de

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6

Rousseaux, Sophie. "Ségrégations méiotiques des chromosomes remaniés dans les translocations humaines : analyse par hybridation in situ en fluorescence sur les noyaux spermatiques interphasiques." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10065.

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Une translocation équilibrée résulte d'un échange de fragments entre deux chromosomes non homologues, sans perte ni gain de matériel génétique. La ségrégation méiotique des chromosomes de sujets porteurs de translocations est analysée par hybridation in situ en fluorescence (FISH) multicouleur sur noyaux spermatiques interphasiques. Elle a d'abord été étudiée dans 27 000 spermatozoïdes provenant de deux frères porteurs d'une translocation réciproque t(6 ;11) (q14 ;p14). Trois sondes centromériques, spécifiques des chromosomes 6, 11 et 1 ont été hybridées simultanément afin de détecter tous les

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7

SAIAS, MAGNAN JACQUELINE. "Reconstruction tridimensionnelle de noyaux de spermatocytes 1 au stade zygotene chez un sujet infertile porteur d'une translocation reciproque t(13;14)." Aix-Marseille 2, 1993. http://www.theses.fr/1993AIX20902.

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8

Guichaoua, Marie-Roberte. "L'infertilité masculine d'origine chromosomique : ses mécanismes : apport de l'étude du stade pachytène dans les spermatocytes I en prophase de Méiose." Aix-Marseille 2, 1990. http://www.theses.fr/1990AIX21904.

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9

Winters, Tristan. "The role of STAG3 in mammalian meiosis." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-233399.

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The cohesin complex is essential for mitosis and meiosis. The specific meiotic roles of individual cohesin proteins are incompletely understood. We report in vivo functions of the only meiosis-specific STAG component of cohesin, STAG3. Newly generated STAG3-deficient mice of both sexes are sterile with meiotic arrest. In these mice, meiotic chromosome architecture is severely disrupted as no bona fide axial elements (AE) form and homologous chromosomes do not synapse. Axial element protein SYCP3 forms dot-like structures, many partially overlapping with centromeres. Asynapsis marker HORMAD1 is

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10

Foster, Naomi. "The involvement of ARF6 in rapid membrane recycling during Drosophila spermatocyte cytokinesis." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:swb:14-1171479096001-41311.

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11

Foster, Naomi. "The involvement of ARF6 in rapid membrane recycling during Drosophila spermatocyte cytokinesis." Doctoral thesis, Technische Universität Dresden, 2006. https://tud.qucosa.de/id/qucosa%3A25038.

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Cytokinesis involves constriction of the cell at the equator. Without decreasing in volume, a spherical cell requires a net increase in the surface area during this constriction. The constriction is driven by formation of an actomyosin contractile ring, and the surface increase by addition of membrane during the formation of the cleavage furrow. Both events depend on the central spindle microtubules at the midzone of the spindle and, in particular, on the centralspindlin protein complex. The communication between the central spindle microtubules and the actomyosin ring involves binding of a GA

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12

Engert, Christoph G. "A C. elegans histone methyltransferase promotes spermatocyte gene expression, spermatid production and fertility." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112432.

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Thesis: Ph. D., Massachusetts Institute of Technology, Computational and Systems Biology Program, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>To better understand the tissue-specific regulation of chromatin state in cell-fate determination and development, we defined the tissue-specific expression of all 36 lysine methyltransferase (KMT) genes by endogenous mRNA detection in C. elegans. We found that most KMTs are expressed in only one or two tissues and that the germline is the tissue with the most general KMT expression. We discovered that the ge

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13

Laurentis, Marie-Régine de. "Contribution à l'étude du comportement des chromosomes méiotiques dans le spermatocyte humain au stade pachytène." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37599011w.

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14

Laurentis, Marie Régine de. "Contribution à l'étude du comportement des chromosomes méiotiques dans le spermatocyte humain au stade pachytène." Aix-Marseille 1, 1986. http://www.theses.fr/1986AIX11054.

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15

Chevret, Edith. "Ségrégations méiotiques des chromosomes sexuels chez les sujets 46,XY et chez les sujets porteurs d'anomalies numériques de ces chromosomes : analyse par hybridation in situ fluorescente (FISH) sur les noyaux de spermatozoides humains." Université Joseph Fourier (Grenoble ; 1971-2015), 1995. http://www.theses.fr/1995GRE10072.

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Les segregations meiotiques des chromosomes 2, 7, 14 et 22 sont etudies par fish deux-couleurs sur les noyaux spermatiques interphasiques de sujets a caryotype somatique normal et de sujets porteurs d'une anomalie numerique constitutionnelle. Ces profils de segregation etant similaires chez les sujets 46,xy et chez les sujets 46,xy/47,xxy et 47,xyy, nous suggerons que la presence du gonosome surnumeraire n'a pas d'influence sur la segregation des autosomes. Les segregations meiotiques des chromosomes x et y sont etudiees par fish trois-couleurs. La cohybridation des deux sondes gonosomales et

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16

Krisztian, Kaszas. "Mise en évidence et analyse de nouvelles isoformes du proto-oncogène c-Cbl et rôle émergeant de ce gène dans la régulation de l'apoptose et de la prolifération cellulaire." Phd thesis, Université Claude Bernard - Lyon I, 2007. http://tel.archives-ouvertes.fr/tel-00162460.

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Le proto-oncogène c-Cbl code pour une protéine cytoplasmique abondamment exprimé dans les tissus hématopoïétiques et testiculaires. Elle possède un rôle de protéine multi-adaptatrice et/ou de régulateur négatif des RTKs. Nous rapportons ici que l'expression majoritaire de c-Cbl dans le testicule de rat et de souris est limité aux cellules germinales et son expression augmente en présence de testostérone et diminue après traitement in vivo par l'anti-androgène flutamide. L'apoptose dépendante des androgènes survenant à la fin de la méïose 1 est notablement moins importante dans le testicule de

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17

Sigala, Julien. "Qualité du protéome du spermatozoïde humain et infertilité." Thesis, Lille 2, 2016. http://www.theses.fr/2016LIL2S039/document.

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La mobilité est une fonction clé de la qualité fécondante et de sélection des spermatozoïdes des techniques d’assistance médicale à la procréation (AMP). Nous manquons cependant d'information des mécanismes moléculaires contrôlant cette mobilité. Ce travail de thèse est articulé autour de 2 protéines d’intérêts impliquées dans la mobilité spermatique: la protéine Tau (Tubule-associated unit) associée à la polymérisation des microtubules dans le neurone, et la protéine d’ancrage aux kinases A4 (AKAP4), protéine majeure de la gaine fibreuse du flagelle spermatique, connue pour son implication da

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18

Eaker, Shannon Stewart. "Analysis of events governing the meiotic division in mouse spermatocytes." 2001. http://etd.utk.edu/2001/EakerShannon.pdf.

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19

Wong, Raymond. "The Role of PtdIns(4,5)P2 during Cytokinesis in Drosophila Spermatocytes." Thesis, 2011. http://hdl.handle.net/1807/31974.

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Cytokinesis, the final step of cell division, is characterized by formation of a cleavage furrow that ingresses to separate the cell into two daughter cells. This process requires rearrangement of the cytoskeleton and addition of membrane to the growing furrow. The phospholipid phosphatidylinositol 4,5-bisphosphate [PtdIns(4,5)P2] has been implicated in regulating both actin dynamics and membrane trafficking and, thus, is uniquely poised to coordinate these different processes during cytokinesis. In this study, I show that PtdIns(4,5)P2 is involved in another aspect of cytokinesis: regulation

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20

Xie, Lele. "The effects of jasplakinolide on chromosome movement in primary crane-fly spermatocytes /." 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:MR29631.

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Thesis (M.Sc.)--York University, 2006. Graduate Programme in Biology.<br>Typescript. Includes bibliographical references (leaves 72-88). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:MR29631

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21

Inselman, Amy Lynn. "Elucidation of the players and events regulating the first meiotic division in mouse spermatocytes." 2003. http://etd.utk.edu/2003/Inselman.Amy.pdf.

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Thesis (Ph. D.)--University of Tennessee, Knoxville, 2003.<br>Title from title page screen (viewed Apr. 13, 2004). Thesis advisor: Mary Ann Handel. Document formatted into pages (xi, 214 p. : ill. (some col)). Vita. Includes bibliographical references (p. 21-27).

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22

MILLER, GEORGE EDWARD JR. "IN VITRO TOXICITY OF 1,2-DIBROMO-3-CHLOROPROPANE TO ISOLATED TESTICULAR CELLS (SPERMATOCYTES, SERTOLI CELLS, LACTATE METABOLISM, MITOCHONDRIA)." 1986. http://books.google.com/books?id=cfg9AAAAMAAJ.

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23

Wang, Pin-Ya, and 王品雅. "Characterization of the specialized gene expression during the onset of primary spermatocytes: using senp2 as a key paradigm." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/16390202286685559080.

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碩士<br>東海大學<br>畜產與生物科技學系<br>93<br>The quality of semen relies immensely on spermatogenesis. In this study, we intended to understand the differential gene expression patterns between spermatogonia and primary spermatocytes. We prepared total RNA from the 8-day-old (containing only Sertoli cells and spermatogonia) and the 10-day-old (primary spermatocytes starting to appear) mouse testes, respectively, for the DD RT-PCR analysis to study the differential gene expression between these two cell populations. We recovered differentially expressed cDNA fragments, and cloned them by TA Cloning for DNA

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24

Winters, Tristan. "The role of STAG3 in mammalian meiosis." Doctoral thesis, 2017. https://tud.qucosa.de/id/qucosa%3A30815.

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The cohesin complex is essential for mitosis and meiosis. The specific meiotic roles of individual cohesin proteins are incompletely understood. We report in vivo functions of the only meiosis-specific STAG component of cohesin, STAG3. Newly generated STAG3-deficient mice of both sexes are sterile with meiotic arrest. In these mice, meiotic chromosome architecture is severely disrupted as no bona fide axial elements (AE) form and homologous chromosomes do not synapse. Axial element protein SYCP3 forms dot-like structures, many partially overlapping with centromeres. Asynapsis marker HORMAD1 is

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25

Foster, Naomi [Verfasser]. "The involvement of ARF6 in rapid membrane recycling during Drosophila spermatocyte cytokinesis / von Naomi Foster." 2007. http://d-nb.info/98362738X/34.

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26

Matulis, Shannon Marie. "Cross-species comparison of spermatocyte responses to induced DNA damage the laboratory mouse and Drosophila melanogaster /." 2006. http://etd.utk.edu/2006/MatulisShannon.pdf.

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27

Cyprys, Anya. "Investigating the Role of Fwd and Potential Role of the Rab11-interacting Protein dRip11 in Drosophila Spermatocyte Cytokinesis." Thesis, 2012. http://hdl.handle.net/1807/32570.

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Cytokinesis is the final separation of daughter cells after division. Membrane trafficking increases the surface area of dividing cells and may deliver cargo needed for division. The Drosophila PI4-kinase Fwd is required for spermatocyte cytokinesis and likely acts, in part, by mediating Rab11-dependent trafficking to the furrow. To further understand the mechanism of action of Fwd, I attempted to place fwd in a pathway with other cytokinesis genes encoding Rab11, phosphatidylinositol transfer protein and a subunit of the exocyst. I also investigated a potential role for the Rab11 interacting

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