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Littérature scientifique sur le sujet « Reproductive cell »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Reproductive cell"

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Zadrag-Tecza, Renata, Magdalena Kwolek-Mirek, Małgorzata Alabrudzińska, and Adrianna Skoneczna. "Cell Size Influences the Reproductive Potential and Total Lifespan of theSaccharomyces cerevisiaeYeast as Revealed by the Analysis of Polyploid Strains." Oxidative Medicine and Cellular Longevity 2018 (2018): 1–17. http://dx.doi.org/10.1155/2018/1898421.

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The total lifespan of the yeastSaccharomyces cerevisiaemay be divided into two phases: the reproductive phase, during which the cell undergoes mitosis cycles to produce successive buds, and the postreproductive phase, which extends from the last division to cell death. These phases may be regulated by a common mechanism or by distinct ones. In this paper, we proposed a more comprehensive approach to reveal the mechanisms that regulate both reproductive potential and total lifespan in cell size context. Our study was based on yeast cells, whose size was determined by increased genome copy numbe

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Vidane, Atanásio S., Helena D. Zomer, Bruna M. M. Oliveira, et al. "Reproductive Stem Cell Differentiation." Reproductive Sciences 20, no. 10 (2013): 1137–43. http://dx.doi.org/10.1177/1933719113477484.

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Boddy, Amy M., Hanna Kokko, Felix Breden, Gerald S. Wilkinson, and C. Athena Aktipis. "Cancer susceptibility and reproductive trade-offs: a model of the evolution of cancer defences." Philosophical Transactions of the Royal Society B: Biological Sciences 370, no. 1673 (2015): 20140220. http://dx.doi.org/10.1098/rstb.2014.0220.

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The factors influencing cancer susceptibility and why it varies across species are major open questions in the field of cancer biology. One underexplored source of variation in cancer susceptibility may arise from trade-offs between reproductive competitiveness (e.g. sexually selected traits, earlier reproduction and higher fertility) and cancer defence. We build a model that contrasts the probabilistic onset of cancer with other, extrinsic causes of mortality and use it to predict that intense reproductive competition will lower cancer defences and increase cancer incidence. We explore the tr

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Kustan, Jacqueline M., Karen P. Maruska, and Russell D. Fernald. "Subordinate male cichlids retain reproductive competence during social suppression." Proceedings of the Royal Society B: Biological Sciences 279, no. 1728 (2011): 434–43. http://dx.doi.org/10.1098/rspb.2011.0997.

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Subordinate males, which are excluded from reproduction often save energy by reducing their investment in sperm production. However, if their position in a dominance hierarchy changes suddenly they should also rapidly attain fertilization capability. Here, we asked how social suppression and ascension to dominance influences sperm quality, spermatogenesis and reproductive competence in the cichlid Astatotilapia burtoni , where reproduction is tightly coupled to social status. Dominant territorial (T) males are reproductively active while subordinate non-territorial (NT) males are suppressed, b

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Carrithers, Bria, Rachel Klein, and Julie Kanter. "Addressing Reproductive Education Among Young Adults with Sickle Cell Disease (SCD): Sickle Cell Reproductive Outreach and Education (ROE) Project." Blood 142, Supplement 1 (2023): 3903. http://dx.doi.org/10.1182/blood-2023-190927.

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Background: As children with sickle cell disease (SCD) survive into adulthood, it is important to address emerging reproductive health concerns. This population faces unique fertility challenges, including balancing the desire for biological parenthood, risk of pregnancy-associated complications, unintended pregnancy, and fertility concerns with the use of SCD modifying therapies (DMTs) (Smith-Whitley, Blood, 2014, Pecker, Br J Haematol, 2021) . Recent research identified knowledge gaps that impact reproductive care for adults with SCD (Carrithers, Frontiers, 2023). To overcome these gaps, we

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Lie, Merete. "Reproductive Images: The Autonomous Cell." Science as Culture 21, no. 4 (2012): 475–96. http://dx.doi.org/10.1080/09505431.2012.679728.

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Mukhopadhyay, Madhura. "Cell atlases for reproductive health." Nature Methods 22, no. 5 (2025): 893. https://doi.org/10.1038/s41592-025-02709-z.

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Templeman, Nicole M., and Coleen T. Murphy. "Regulation of reproduction and longevity by nutrient-sensing pathways." Journal of Cell Biology 217, no. 1 (2017): 93–106. http://dx.doi.org/10.1083/jcb.201707168.

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Nutrients are necessary for life, as they are a crucial requirement for biological processes including reproduction, somatic growth, and tissue maintenance. Therefore, signaling systems involved in detecting and interpreting nutrient or energy levels—most notably, the insulin/insulin-like growth factor 1 (IGF-1) signaling pathway, mechanistic target of rapamycin (mTOR), and adenosine monophosphate-activated protein kinase (AMPK)—play important roles in regulating physiological decisions to reproduce, grow, and age. In this review, we discuss the connections between reproductive senescence and

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Ra, Kihae, Se Chang Park, and Byeong Chun Lee. "Female Reproductive Aging and Oxidative Stress: Mesenchymal Stem Cell Conditioned Medium as a Promising Antioxidant." International Journal of Molecular Sciences 24, no. 5 (2023): 5053. http://dx.doi.org/10.3390/ijms24055053.

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The recent tendency to delay pregnancy has increased the incidence of age-related infertility, as female reproductive competence decreases with aging. Along with aging, a lowered capacity of antioxidant defense causes a loss of normal function in the ovaries and uterus due to oxidative damage. Therefore, advancements have been made in assisted reproduction to resolve infertility caused by reproductive aging and oxidative stress, following an emphasis on their use. The application of mesenchymal stem cells (MSCs) with intensive antioxidative properties has been extensively validated as a regene

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Wocławek-Potocka, Izabela, Paulina Rawińska, Ilona Kowalczyk-Zieba, et al. "Lysophosphatidic Acid (LPA) Signaling in Human and Ruminant Reproductive Tract." Mediators of Inflammation 2014 (2014): 1–14. http://dx.doi.org/10.1155/2014/649702.

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Lysophosphatidic acid (LPA) through activating its G protein-coupled receptors (LPAR 1–6) exerts diverse cellular effects that in turn influence several physiological processes including reproductive function of the female. Studies in various species of animals and also in humans have identified important roles for the receptor-mediated LPA signaling in multiple aspects of human and animal reproductive tract function. These aspects range from ovarian and uterine function, estrous cycle regulation, early embryo development, embryo implantation, decidualization to pregnancy maintenance and partu

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Thèses sur le sujet "Reproductive cell"

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Hofsten, Jonas von. "Developmental and reproductive regulation of NR5A genes in teleosts." Doctoral thesis, Umeå : Univ, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-374.

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Giedt, Michelle Suzanne. "JAK/STAT SIGNALING REGULATES GAMETOGENESIS AND AGE-RELATED REPRODUCTIVE MAINTENANCE." UKnowledge, 2018. https://uknowledge.uky.edu/biology_etds/52.

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Cell signaling is central to integration of internal and external cues that regulate development and homeostasis. Most development is thought of as pre-adult, but limited developmental processes occur in adults. Gametogenesis incorporates elements of both these facets, with a distinct developmental plan for gamete synthesis which is regulated by integration of homeostatic inputs such as nutrient status, and environmental cues. Signaling pathways integrate and transduce information from these cues to evoke a response. A decline in homeostasis and subsequent cues occurs over time, in the case of

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Van, Praet Oliver. "Co-expression and interaction of cubilin and megalin in the adult male rat reproductive system." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29485.

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Cubilin is a peripheral membrane protein that co-operates with the endocytic receptor megalin to mediate the endocytosis of ligands in various polarized epithelia. Megalin is expressed in the male reproductive tract where is has been implicated in the process of sperm membrane remodeling. A potential role for cubilin in the male reproductive tract has not been explored. Using RT-PCR, we found that cubilin and megalin mRNAs are expressed in the efferent ducts, corpus and cauda epididymides, and proximal and distal vas deferens. Immunohistological analysis revealed that cubilin was expressed in

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Mercurio, S. "ROLE OF STEROID HORMONES IN ECHINOID REPRODUCTIVE BIOLOGY." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/230752.

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Echinoid reproductive cycle has been extensively studied in several species but the mechanisms regulating gametogenesis processes are still scarcely understood. Apart from environmental factors, different research have suggested a steroid role in gonad maturation and growth. Particularly, in echinoderms steroid involvement in reproduction has been suggested by both studies on seasonal changes of steroid levels during the gonadal cycle and experiments of hormone administration. Nevertheless, the steroid function in echinoid reproductive processes has not been clearly identified, probably due to

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Chen, Hsin-Ying. "T CELL RESPONSE TO INFECTION BY THE PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-01062005-170050/.

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The purpose of the research has been to characterize the response of naïve or virus-specific swine T lymphocytes from different lymphoid compartments to Porcine Reproductive and Respiratory Syndrome Virus (PRRSV). Peripheral blood mononuclear cells (PBMCs), tracheobronchial lymph node (TLN) and lateral retropharyngeal lymph node (LLN) cells were labeled with PKH67 green fluorescence dye to measure cell proliferation and surface phenotypes were examined using anti-CD4, anti-CD8 or anti-CD25 monoclonal antibodies. Stimulation with Concanavalin A was also included as a positive control. Our resul

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Dias, Tânia Isabel Rodrigues Amaral. "Evaluation of cell death markers and reproductive parameters in models of diabetes mellitus." Master's thesis, Universidade da Beira Interior, 2012. http://hdl.handle.net/10400.6/1121.

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Diabetes mellitus (DM) represents one of the greatest threats to modern global health and its incidence is rapidly rising worldwide. It describes a metabolic disorder characterized by hyperglycaemia resulting from defective insulin secretion, resistance to insulin action, or both. There are two types of DM, type-1 DM (T1DM) and type-2 DM (T2DM), both associated with male infertility. T1DM is associated with insulin deprivation and although the overall in vivo effects in the reproductive function is well known, there is a lack of studies concerning about the insulin control over the physiologic

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Ismail, Rubina Siddiqi. "Expression, hormonal regulation and function of Kit ligand, the ligand for thec-Kit receptor, in the rat reproductive system." Thesis, University of Ottawa (Canada), 1998. http://hdl.handle.net/10393/4364.

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Mice having mutations at the Kit and Mast Cell Growth Factor loci suffer from severe development abnormalities in gametogenesis suggesting that the protein products produced at these loci, Kit receptor and kit ligand (KL), serve an essential role in the reproductive system. The purposes of this study were: (1) to identify the expression Kit and KL in the ovary which is the organ in which gametogenesis occurs in the female animal, (2) to determine the expression of Kit and KL in the female reproductive tract, (3) to determine the influence of hormones and growth factors on the expression of Kit

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Perrini, C. "EQUINE AND BOVINE MICROVESICLES DERIVED FROM AMNIOTIC PROGENITOR CELLS IN REGENERATIVE AND REPRODUCTIVE TOPICS." Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/490022.

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Durante questo progetto di dottorato sono stati condotti studi per comprendere la capacità delle cellule mesenchimali amniotiche (AMCs) di agire attraverso meccanismi paracrini. La prima fase del disegno sperimentale ha valutato l’efficacia delle AMCs sulla proliferazione delle cellule endometriali (EDCs) in assenza di un contatto cellula-cellula. Le EDCs sono state co-coltivate in un sistema trans-well con le AMCs o sono state coltivate in presenza del loro medium condizionato (CM). In entrambe le condizioni sperimentali è stato osservato un aumento del tasso di proliferazione delle EDCs defi

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Uebler, Susanne [Verfasser], Thomas [Akademischer Betreuer] Dresselhaus, and Reinhard [Akademischer Betreuer] Sterner. "Analysis of cell-cell communication during reproductive processes by EA1-like peptides in maize / Susanne Uebler ; Thomas Dresselhaus, Reinhard Sterner." Regensburg : Universitätsbibliothek Regensburg, 2015. http://d-nb.info/1122354932/34.

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Uebler, Susanne Verfasser], Thomas [Akademischer Betreuer] [Dresselhaus, and Reinhard [Akademischer Betreuer] Sterner. "Analysis of cell-cell communication during reproductive processes by EA1-like peptides in maize / Susanne Uebler ; Thomas Dresselhaus, Reinhard Sterner." Regensburg : Universitätsbibliothek Regensburg, 2015. http://d-nb.info/1122354932/34.

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Livres sur le sujet "Reproductive cell"

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Tilly, Jonathan L., Jerome F. Strauss, and Martin Tenniswood, eds. Cell Death in Reproductive Physiology. Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1944-6.

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1962-, Tilly Jonathan L., Strauss Jerome F. 1947-, Tenniswood M, Serono Symposia USA, and International Symposium on Cell Death in Reproductive Physiology (1996 : Chicago, Ill.), eds. Cell death in reproductive physiology. Springer-Verlag, 1997.

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Scott, Christopher Thomas. Stem Cell Now. Penguin Group USA, Inc., 2008.

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Loke, Y. W. Human implantation: Cell biology and immunology. Cambridge University Press, 1995.

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Scott, Christopher Thomas. The stem cell: Science, ethics, politics. Roberts and Co., 2006.

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del, Mazo Jesús, and Workshop on Reproductive Toxicology (1997 : Granada, Spain), eds. Reproductive toxicology: In vitro germ cell developmental toxicology, from science to social and industrial demand. Plenum Press, 1998.

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Mazo, Jesús. Reproductive toxicology: In vitro germ cell developmental toxicology, from science to social and industrial demand. Springer, 1998.

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Symposium, on Biology of Reproduction and Cell Motility in Plants and Animals (1986 Siena Italy). Biology of reproduction and cell motility in plants and animals: Proceedings of the Symposium on: Biology of Reproduction and Cell Motility in Plants and Animals, Siena, Italy, April 7-8, 1986. University of Siena, 1986.

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International Conference on Medical Ethics (1st 2004 Nicosia, Cyprus). Progress in science and the danger of hubris: Genetics, transplantation, stem cell research : proceedings of the First International Conference on Medical Ethics, Nicosia, 24-26 September 2004. Waxmann, 2006.

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United States. Congress. Senate. Committee on Health, Education, Labor, and Pensions. The dangers of cloning and the promise of regenerative medicine: Hearing before the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Seventh Congress, second session on examining cloning research, focusing on the clarification of how stem cell research, or therapeutic cloning, differs from human reproductive cloning, and the ethical and public-policy issues related to both, and related issues of S. 1853 to ban human cloning while protecting stem cell research, March 5, 2002. U.S. G.P.O., 2002.

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Chapitres de livres sur le sujet "Reproductive cell"

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Fahey, John V., Charu Kaushic, and Charles R. Wira. "Human Uterine Epithelial Cells: Influence of culture conditions and stromal cells on epithelial cell transepithelial cell resistance." In Reproductive Immunology. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4197-0_38.

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Lawit, Shai J., and Mark A. Chamberlin. "Transgenic Reproductive Cell Ablation." In Methods in Molecular Biology. Springer New York, 2017. http://dx.doi.org/10.1007/978-1-4939-7286-9_28.

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Peluso, John J. "Cell-to-Cell Contact and the Role of Cadherins Cell Survival." In Cell Death in Reproductive Physiology. Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1944-6_11.

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Rapley, Elizabeth A. "Susceptibility Alleles for Testicular Germ Cell Tumor." In Male Reproductive Cancers. Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0449-2_11.

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Nathanson, Katherine L. "Molecular Genetics of Testicular Germ Cell Tumor." In Male Reproductive Cancers. Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0449-2_6.

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Pesce, Maurizio, Maria Grazia Farrace, Alessandra Amendola, Mauro Piacentini, and Massimo De Felici. "Stem Cell Factor Regulation of Apoptosis in Mouse Primordial Germ Cells." In Cell Death in Reproductive Physiology. Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1944-6_3.

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Chedrese, Pedro J., and Alejandro M. Bertorello. "The Molecules That Transmit Information into the Cell: The Intracellular Signaling Pathways." In Reproductive Endocrinology. Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-88186-7_3.

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Ansell, I. D. "Testis — Non-Germ Cell Tumours." In Atlas of Male Reproductive Pathology. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4868-6_8.

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Tilly, Jonathan L., and Kim I. Tilly. "Dissecting the Functions, Mechanisms, and Genes of Physiological Cell Death in Reproductive Tissues: An Overview." In Cell Death in Reproductive Physiology. Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1944-6_1.

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Schomberg, David W., and Jonathan L. Tilly. "Regulation of Apoptosis Versus Mitosis in Immature Granulosa Cells." In Cell Death in Reproductive Physiology. Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-1944-6_10.

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Actes de conférences sur le sujet "Reproductive cell"

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Videla, H. A., S. G. Gómez de Saravia, M. F. L. de Mele, G. Hernandez, and W. Hartt. "The Influence of Microbial Biofilms on Cathodic Protection at Different Temperatures." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93298.

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Abstract The effect of cathodic protection on Vibrio alginolyticus biofilms formed on stainless steel samples, was studied at different temperatures (6C, 12C and 20C). Bacterial settlement and reproduction was reduced by cathodic protection in the initial stages of biofilm formation. However, this effect was less relevant when the steady state of growth was reached. A reduction in the number of sessile cells was observed at low temperatures (6C, 12C). The analysis of current density vs. contact time curves suggests that the formation of calcareous deposits is modified by organic adsorption and

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Vlašković, Veljko. "Pravni značaj biomedicinske usluge čuvanja reproduktivnih ćelija maloletnog lica." In XVI Majsko savetovanje. University of Kragujevac, Faculty of Law, 2020. http://dx.doi.org/10.46793/upk20.451v.

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Serbian Law on Medically Assisted Reproduction has widened the number of persons who enjoy the right to preserve their reproductive material for postponed reproduction due to threatened infertility. In this context, that right now belongs also to underage person if her/his parents gave the explicit and written consent to harvesting, freezing and banking of their child's reproductive cells. These are the cases when the underage person currently has reproductive capability, but she/ he is threatened by loss of reproductive function in the near future due to developing illness or forthcoming medi

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Vlašković, Veljko. "Pravni značaj biomedicinske usluge čuvanja reproduktivnih ćelija maloletnog lica." In XVI Majsko savetovanje. University of Kragujevac, Faculty of Law, 2020. http://dx.doi.org/10.46793/upk20.451v.

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Serbian Law on Medically Assisted Reproduction has widened the number of persons who enjoy the right to preserve their reproductive material for postponed reproduction due to threatened infertility. In this context, that right now belongs also to underage person if her/his parents gave the explicit and written consent to harvesting, freezing and banking of their child's reproductive cells. These are the cases when the underage person currently has reproductive capability, but she/ he is threatened by loss of reproductive function in the near future due to developing illness or forthcoming medi

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Leshkova, I. V., O. V. Dolgih, and O. YU Ustinova. "IMMUNOLOGICAL DISORDERS OF THE REPRODUCTIVE SYSTEM THAT OCCUR WHEN EXPOSED TO BENZENE, IN EMPLOYEES OF OIL-PRODUCING ENTERPRISES." In The 16th «OCCUPATION and HEALTH» Russian National Congress with International Participation (OHRNC-2021). FSBSI “IRIOH”, 2021. http://dx.doi.org/10.31089/978-5-6042929-2-1-2021-1-313-316.

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Abstract. Introduction. The protection of the reproductive health of the working-age population is the most important direction of State policy. In 5-15% of cases, the causes of reproductive dysfunction are immunological disorders. Benzene belongs to the group of industrial reprotoxicants, however, its effect of benzene on the reproductive system has not been sufficiently studied. Objective: to study the immunological aspects of the effect of benzene on the reproductive system. Methods. We examined 50 men exposed to benzene with reproductive disorders (26-49 years old), as well as 4 workers wi

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Tuğlu, Ibrahim. "The Role of Stem Cell on The Reproductive organs." In 15th International Congress of Histochemistry and Cytochemistry. LookUs Scientific, 2017. http://dx.doi.org/10.5505/2017ichc.op-41.

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A.A., Matrosov, Nizhnik D.A., and Soloviev A.N. "DIFFUSION OF A CRYOPROTECTANT THROUGH THE MEMBRANE OF REPRODUCTIVE CELLS." In OF THE ANNIVERSARY Х INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE «INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION» («ITSE 2022» CONFERENCE). DSTU-Print, 2022. http://dx.doi.org/10.23947/itse.2022.124-126.

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In order to develop a new technology for low-temperature preservation of fish reproductive cells, and sturgeon fish in particular, mathematical modeling of acoustic impact on biological objects has been performed. A mathematical model of cryoprotectant diffusion through the reproductive cell membrane is constructed. It is assumed that a special piezoactuator creates an acoustic field in the cryoprotectant. By virtue of this, the corresponding velocity field of the environment is assumed to be set. The resulting boundary value problem is solved numerically using the finite element method.

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"Establishment of embryonic stem cell-like cells in pigs." In Recent progress in swine breeding and raising technologies and cutting-edge reproductive technologies and perspectives for their usage in swine. Food and Fertilizer Technology Center for the Asian and Pacific Region, 2014. https://doi.org/10.56669/pihy7435.

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Liu, Yehe, Shi Gu, Michiko Watanabe, Andrew M. Rollins, and Michael W. Jenkins. "Cell counting in whole mount tissue volumes using expansion OCT (Conference Presentation)." In Diagnosis and Treatment of Diseases in the Breast and Reproductive System III, edited by Melissa C. Skala and Paul J. Campagnola. SPIE, 2017. http://dx.doi.org/10.1117/12.2253162.

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S. rajab, Eslah. "Date Palm Pollen (Phoenix dactylifera L.) Supplementations: impact on the Fertility and Anti-Cancer Properties." In XII. International Scientific Congress of Pure, Applied and Technological Sciences. Rimar Academy, 2024. https://doi.org/10.47832/minarcongress12-16.

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Infertility and cancer are a major public health challenge globally. Date palm pollen (DPP), the male reproductive cells of the palm tree's flowers, has a long-standing use as a nutritional supplement, especially as an aphrodisiac and fertility ameliorative. Recently, some studies have looked into its effect against some types of cancer. This study sought to assay the impact of DPP extract (DPPE) supplementation on the fertility of adult healthy male Swiss albino mice in vivo and to evaluate its cytotoxic effect against human rhabdomyosarcoma (RD) cancer cell line in vitro. Forty male mice wer

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V.P., Osipova, and Kolyada M.N. "APPLICATION OF NEW GENERATION ANTIOXIDANTS AS CRYOPROTECTORS IN LOWTEMPERATURE PRESERVATION OF STURGEON REPRODUCTIVE CELLS." In II INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE "DEVELOPMENT AND MODERN PROBLEMS OF AQUACULTURE" ("AQUACULTURE 2022" CONFERENCE). DSTU-Print, 2022. http://dx.doi.org/10.23947/aquaculture.2022.103-105.

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The paper presents the results of a study of the cryoprotective activity of a new generation of antioxidants – hybrid multifunctional phenolic derivatives during low-temperature preservation of sturgeon reproductive cells. It has been shown that the addition of phosphorus-containing sterically hindered phenol, pyrrolidine and thioacetamide phenolic derivatives to the basic modified Stein cryoprotective medium, makes it possible to increase the low cryoresistance of sturgeon sperm: the level of lipid peroxidation decreases, cell motility improves, and the fertility of defrosted sperm increases.

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Rapports d'organisations sur le sujet "Reproductive cell"

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Heifetz, Yael, and Michael Bender. Success and failure in insect fertilization and reproduction - the role of the female accessory glands. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7695586.bard.

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The research problem. Understanding of insect reproduction has been critical to the design of insect pest control strategies including disruptions of mate-finding, courtship and sperm transfer by male insects. It is well known that males transfer proteins to females during mating that profoundly affect female reproductive physiology, but little is known about the molecular basis of female mating response and no attempts have yet been made to interfere with female post-mating responses that directly bear on the efficacy of fertilization. The female reproductive tract provides a crucial environm

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Daley, George. Ovarian Cancer and Reproductive System Biology: A Harvard Stem Cell Institution Consortium. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada542144.

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Ohad, Nir, and Robert Fischer. Control of Fertilization-Independent Development by the FIE1 Gene. United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7575290.bard.

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A fundamental problem in biology is to understand how fertilization initiates reproductive development. During plant reproduction, one sperm cell fuses with the egg to form an embryo, whereas a second sperm cell fuses with the adjacent central cell nucleus to form the endosperm tissue that supports embryo and/or seedling development. To understand the mechanisms that initiate reproduction, we have isolated mutants of Arabidopsis that allow for replication of the central cell and subsequent endosperm development without fertilization. In this project we have cloned the MEA gene and showed that

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Delwiche, Michael, Boaz Zion, Robert BonDurant, Judith Rishpon, Ephraim Maltz, and Miriam Rosenberg. Biosensors for On-Line Measurement of Reproductive Hormones and Milk Proteins to Improve Dairy Herd Management. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7573998.bard.

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The original objectives of this research project were to: (1) develop immunoassays, photometric sensors, and electrochemical sensors for real-time measurement of progesterone and estradiol in milk, (2) develop biosensors for measurement of caseins in milk, and (3) integrate and adapt these sensor technologies to create an automated electronic sensing system for operation in dairy parlors during milking. The overall direction of research was not changed, although the work was expanded to include other milk components such as urea and lactose. A second generation biosensor for on-line measuremen

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Tummaruk, Padet, Peerapong Sumransarp, Wanpen Adulyanubap, Jinda Singlor, and Mongkol Techakumphu. Fertilization rate after deep intra uterine insemination in pig. Chulalongkorn University, 2006. https://doi.org/10.58837/chula.res.2006.92.

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The objectives of the present study were to investigate fertilization rate and number of embryo on each side of the reproductive tract after inseminated multiparous sows using deep intra uterine insemination (DIUI) technique with fresh semen. Eight crossbred multiparous sows were used in the experiment. The sows were examined for the onset of standing oestrus every 6 h by using a back pressure test in the presence of a mature boar. Transrectal ultrasonography was performed every 4 h using a 5 MHz probe to examine the time when ovulation took place in all sows. During the second oestrus after w

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Newton, Ronald, Joseph Riov, and John Cairney. Isolation and Functional Analysis of Drought-Induced Genes in Pinus. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568752.bard.

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Drought is a common factor limiting timber production in the U.S. and Israel. Loblolly (Pinus taeda) and alleppo pine (Pinus halepensis) seedling survival is reduced when out planted, and growth and reproduction are often hindered by periodic droughts during later stages of tree development. Molecular and gene responses to drought stress have not been characterized. The objectives were to characterize drought-induced gene clones from these pines, to determine the effects of a growth regulator on drought tolerance, ABA levels, and drought-induced gene expression in alleppo pine, and to develop

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Wolfenson, David, William W. Thatcher, Rina Meidan, Charles R. Staples, and Israel Flamenbaum. Hormonal and Nutritional Stretegies to Optimize Reproductive Function and Improve Fertility of Dairy Cattle during Heat Stress in Summer. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7568773.bard.

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The BARD program includes two main parts. In the first, experiments were conducted to complete our understanding of the mechanisms responsible for the impairment of reproductive functions under heat stress. Experiments focused on follicular development and function, since results obtained in our previous BARD project indicate that the preovulatory follicle is susceptible to heat stress. The theca cells, sensitive to thermal stress, produced less androgen during the summer, as well as during the autumn. Similarly, luteinized theca cells obtained from cows in summer produced much less progestero

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Ohad, Nir, and Robert Fischer. Regulation of Fertilization-Independent Endosperm Development by Polycomb Proteins. United States Department of Agriculture, 2004. http://dx.doi.org/10.32747/2004.7695869.bard.

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Arabidopsis mutants that we have isolated, encode for fertilization-independent endosperm (fie), fertilization-independent seed2 (fis2) and medea (mea) genes, act in the female gametophyte and allow endosperm to develop without fertilization when mutated. We cloned the FIE and MEA genes and showed that they encode WD and SET domain polycomb (Pc G) proteins, respectively. Homologous proteins of FIE and MEA in other organisms are known to regulate gene transcription by modulating chromatin structure. Based on our results, we proposed a model whereby both FIE and MEA interact to suppress transcri

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Zhang, Zhibing, Qian Huang, Yonghong Man, et al. Inactivation of Cops5 in smooth muscle cells causes abnormal reproductive hormone homeostasis and development in mice. Peeref, 2023. http://dx.doi.org/10.54985/peeref.2306p3662949.

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Ohad, Nir, and Robert Fischer. Regulation of plant development by polycomb group proteins. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7695858.bard.

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Our genetic and molecular studies have indicated that FIE a WD-repeat Polycomb group (PcG) protein takes part in multi-component protein complexes. We have shown that FIE PcG protein represses inappropriate programs of development during the reproductive and vegetative phases of the Arabidopsis life cycle. Moreover, we have shown that FIE represses the expression of key regulatory genes that promote flowering (AG and LFY), embryogenesis (LEC1), and shoot formation (KNAT1). These results suggest that the FIE PcG protein participates in the formation of distinct PcG complexes that repress inappr

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