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Leon J Spicer

TitleProfessor
InstitutionOklahoma State University
DepartmentAnimal Science
Address310 N Monroe
Stillwater OK
Phone405/744-9268
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    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. McLean KJ, Boehmer BH, Spicer LJ, Wettemann RP. The effects of protein supplementation of fall calving beef cows on pre- and postpartum plasma insulin, glucose and IGF-I, and postnatal growth and plasma insulin and IGF-I of calves. J Anim Sci. 2018 May 22. PMID: 29790945.
      View in: PubMed
    2. Robinson CL, Zhang L, Schütz LF, Totty ML, Spicer LJ. MicroRNA 221 expression in theca and granulosa cells: hormonal regulation and function. J Anim Sci. 2018 Mar 06; 96(2):641-652. PMID: 29385487.
      View in: PubMed
    3. Zhang L, Feng T, Spicer LJ. The role of tight junction proteins in ovarian follicular development and ovarian cancer. Reproduction. 2018 Apr; 155(4):R183-R198. PMID: 29374086.
      View in: PubMed
    4. Prosperini A, Berrada H, Ruiz MJ, Caloni F, Coccini T, Spicer LJ, Perego MC, Lafranconi A. A Review of the Mycotoxin Enniatin B. Front Public Health. 2017; 5:304. PMID: 29201864.
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    5. Perego MC, Caloni F, Cortinovis C, Schutz LF, Albonico M, Tsuzukibashi D, Spicer LJ. Influence of a Roundup formulation on glyphosate effects on steroidogenesis and proliferation of bovine granulosa cells in vitro. Chemosphere. 2017 Dec; 188:274-279. PMID: 28888115.
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    6. Albonico M, Schutz LF, Caloni F, Cortinovis C, Spicer LJ. In vitro effects of the Fusarium mycotoxins fumonisin B1 and beauvericin on bovine granulosa cell proliferation and steroid production. Toxicon. 2017 Mar 15; 128:38-45. PMID: 28132864.
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    7. Spicer LJ, Schütz LF, Williams JA, Schreiber NB, Evans JR, Totty ML, Gilliam JN. G protein-coupled receptor 34 in ovarian granulosa cells of cattle: changes during follicular development and potential functional implications. Domest Anim Endocrinol. 2017 04; 59:90-99. PMID: 28040605.
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    8. Perego MC, Schutz LF, Caloni F, Cortinovis C, Albonico M, Spicer LJ. Evidence for direct effects of glyphosate on ovarian function: glyphosate influences steroidogenesis and proliferation of bovine granulosa but not theca cells in vitro. J Appl Toxicol. 2017 06; 37(6):692-698. PMID: 27917511.
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    9. Albonico M, Schütz LF, Caloni F, Cortinovis C, Spicer LJ. Toxicological effects of fumonisin B1 alone and in combination with other fusariotoxins on bovine granulosa cells. Toxicon. 2016 Aug; 118:47-53. PMID: 27108238.
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    10. Pizzo F, Caloni F, Schreiber NB, Cortinovis C, Spicer LJ. In vitro effects of deoxynivalenol and zearalenone major metabolites alone and combined, on cell proliferation, steroid production and gene expression in bovine small-follicle granulosa cells. Toxicon. 2016 Jan; 109:70-83. PMID: 26657070.
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    11. Pizzo F, Caloni F, Schutz LF, Totty ML, Spicer LJ. Individual and combined effects of deoxynivalenol and a-zearalenol on cell proliferation and steroidogenesis of granulosa cells in cattle. Environ Toxicol Pharmacol. 2015 Nov; 40(3):722-8. PMID: 26425942.
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    12. Pizzo F, Caloni F, Schreiber NB, Schutz LF, Totty ML, Albonico M, Spicer LJ. Direct effects of the algal toxin, domoic acid, on ovarian function: Bovine granulosa and theca cells as an in vitro model. Ecotoxicol Environ Saf. 2015 Mar; 113:314-20. PMID: 25528487.
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    13. Cortinovis C, Caloni F, Schreiber NB, Spicer LJ. Effects of fumonisin B1 alone and combined with deoxynivalenol or zearalenone on porcine granulosa cell proliferation and steroid production. Theriogenology. 2014 May; 81(8):1042-9. PMID: 24576714.
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    14. Cortinovis C, Pizzo F, Spicer LJ, Caloni F. Fusarium mycotoxins: effects on reproductive function in domestic animals--a review. Theriogenology. 2013 Oct 01; 80(6):557-64. PMID: 23916251.
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    15. Aad PY, Echternkamp SE, Sypherd DD, Schreiber NB, Spicer LJ. The hedgehog system in ovarian follicles of cattle selected for twin ovulations and births: evidence of a link between the IGF and hedgehog systems. Biol Reprod. 2012 Oct; 87(4):79. PMID: 22811575.
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    16. Schreiber NB, Spicer LJ. Effects of fibroblast growth factor 9 (FGF9) on steroidogenesis and gene expression and control of FGF9 mRNA in bovine granulosa cells. Endocrinology. 2012 Sep; 153(9):4491-501. PMID: 22798350; PMCID: PMC3423607.
    17. Spicer LJ, Schreiber NB, Lagaly DV, Aad PY, Douthit LB, Grado-Ahuir JA. Effect of resistin on granulosa and theca cell function in cattle. Anim Reprod Sci. 2011 Mar; 124(1-2):19-27. PMID: 21315524.
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    18. Caloni F, Ranzenigo G, Cremonesi F, Spicer LJ. Effects of a trichothecene, T-2 toxin, on proliferation and steroid production by porcine granulosa cells. Toxicon. 2009 Sep 01; 54(3):337-44. PMID: 19463844.
      View in: PubMed
    19. Spicer LJ, Sudo S, Aad PY, Wang LS, Chun SY, Ben-Shlomo I, Klein C, Hsueh AJ. The hedgehog-patched signaling pathway and function in the mammalian ovary: a novel role for hedgehog proteins in stimulating proliferation and steroidogenesis of theca cells. Reproduction. 2009 Aug; 138(2):329-39. PMID: 19433502.
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    20. Lagaly DV, Aad PY, Grado-Ahuir JA, Hulsey LB, Spicer LJ. Role of adiponectin in regulating ovarian theca and granulosa cell function. Mol Cell Endocrinol. 2008 Mar 12; 284(1-2):38-45. PMID: 18289773.
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    21. Spicer LJ, Aad PY, Allen DT, Mazerbourg S, Payne AH, Hsueh AJ. Growth differentiation factor 9 (GDF9) stimulates proliferation and inhibits steroidogenesis by bovine theca cells: influence of follicle size on responses to GDF9. Biol Reprod. 2008 Feb; 78(2):243-53. PMID: 17959852.
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    22. Flanagan AM, Brown JL, Santiago CA, Aad PY, Spicer LJ, Spicer MT. High-fat diets promote insulin resistance through cytokine gene expression in growing female rats. J Nutr Biochem. 2008 Aug; 19(8):505-13. PMID: 17904344.
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    23. Spicer LJ, Bossis I, Wettemann RP. Effect of plasma from cyclic versus nutritionally induced anovulatory beef heifers on proliferation of granulosa cells in vitro. Domest Anim Endocrinol. 2008 Apr; 34(3):250-3. PMID: 17764867.
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    24. Ranzenigo G, Caloni F, Cremonesi F, Aad PY, Spicer LJ. Effects of Fusarium mycotoxins on steroid production by porcine granulosa cells. Anim Reprod Sci. 2008 Aug; 107(1-2):115-30. PMID: 17656051.
      View in: PubMed
    25. Spicer LJ, Aad PY. Insulin-like growth factor (IGF) 2 stimulates steroidogenesis and mitosis of bovine granulosa cells through the IGF1 receptor: role of follicle-stimulating hormone and IGF2 receptor. Biol Reprod. 2007 Jul; 77(1):18-27. PMID: 17360960.
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    26. Aleman MM, Stein DR, Allen DT, Perry E, Lehloenya KV, Rehberger TG, Mertz KJ, Jones DA, Spicer LJ. Effects of feeding two levels of propionibacteria to dairy cows on plasma hormones and metabolites. J Dairy Res. 2007 May; 74(2):146-53. PMID: 17227593.
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    27. Aad PY, Voge JL, Santiago CA, Malayer JR, Spicer LJ. Real-time RT-PCR quantification of pregnancy-associated plasma protein-A mRNA abundance in bovine granulosa and theca cells: effects of hormones in vitro. Domest Anim Endocrinol. 2006 Nov; 31(4):357-72. PMID: 16439093.
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    28. Hayashi K, Carpenter KD, Welsh TH, Burghardt RC, Spicer LJ, Spencer TE. The IGF system in the neonatal ovine uterus. Reproduction. 2005 Mar; 129(3):337-47. PMID: 15749960.
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    29. Santiago CA, Voge JL, Aad PY, Allen DT, Stein DR, Malayer JR, Spicer LJ. Pregnancy-associated plasma protein-A and insulin-like growth factor binding protein mRNAs in granulosa cells of dominant and subordinate follicles of preovulatory cattle. Domest Anim Endocrinol. 2005 Jan; 28(1):46-63. PMID: 15620806.
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    30. Spicer LJ. Proteolytic degradation of insulin-like growth factor binding proteins by ovarian follicles: a control mechanism for selection of dominant follicles. Biol Reprod. 2004 May; 70(5):1223-30. PMID: 14668213.
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    31. Davidson TR, Chamberlain CS, Bridges TS, Spicer LJ. Effect of follicle size on in vitro production of steroids and insulin-like growth factor (IGF)-I, IGF-II, and the IGF-binding proteins by equine ovarian granulosa cells. Biol Reprod. 2002 Jun; 66(6):1640-8. PMID: 12021042.
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    32. Spicer LJ, Chamberlain CS, Maciel SM. Influence of gonadotropins on insulin- and insulin-like growth factor-I (IGF-I)-induced steroid production by bovine granulosa cells. Domest Anim Endocrinol. 2002 Jun; 22(4):237-54. PMID: 12044613.
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    33. Spicer LJ, Chamberlain CS. Estradiol and luteinizing hormone regulation of insulin-like growth factor binding protein production by bovine granulosa and thecal cells. Endocrine. 2002 Apr; 17(3):161-8. PMID: 12108515.
      View in: PubMed
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