Amy E. Sparks, PhD

Portrait
Director, In Vitro Fertilization and Reproductive Testing Laboratories
Clinical Assistant Professor of Obstetrics and Gynecology - Reproducive Testing Laboratories
Clinical Assistant Professor of Obstetrics and Gynecology - Reproductive Endocrinology and Infertility

Contact Information

Primary Office: 40014 PFP
200 Hawkins Drive
Iowa City, IA 52242
319-384-8349

Office:
319-384-8349

Education

BS, Animal Science, Michigan State University
MS, Dairy Science, Virginia Polytechnic Institute and State University
PhD, Animal Sciences, Reproductive Physiology, Virginia Polytechnic Institute and State University

Licensure and Certifications

High Complexity Laboratory Director - American Board of Bioanalysis
Technical Supervisor - American Board of Bioanalysis, Andrology and Embryology Specialties

Publications

Munch, E. M., Sparks, A. E., Zimmerman, M. B., Van Voorhis, B. J. & Duran, E. H. (2017). High FSH dosing is associated with reduced live birth rate in fresh but not subsequent frozen embryo transfers. Hum Reprod [Epub ahead of print]. PMID: 28472321.

Thurston, S. W., Mendiola, J., Bellamy, A. R., Levine, H., Wang, C., Sparks, A., Redmon, J. B., Drobnis, E. Z. & Swan, S. H. (2016). Phthalate exposure and semen quality in fertile US men. Andrology, 4(4), 632-8. PMID: 26601918.

Sparks, A. E. (In Press). Processing surgically retrieved sperm in the IVF laboratory. In D. Morbeck , M. Montag (Eds.) Principles of IVF Laboratory Practice: Optimizing Performance and Outcomes.. Cambridge: Cambridge University Press.

Munch, E. M., Sparks, A. E., Gonzalez Bosquet, J., Christenson, L. K., Devor, E. J. & Van Voorhis, B. J. (2016). Differentially expressed genes in preimplantation human embryos: potential candidate genes for blastocyst formation and implantation. J Assist Reprod Genet, 33(8), 1017-25. PMID: 27241529.

Munch, E. M., Sparks, A. E., Duran, H. E. & Van Voorhis, B. J. (2015). Lack of carbon air filtration impacts early embryo development. J Assist Reprod Genet, 32(7), 1009-17. PMID: 26003657.

Kresowik, J., Sparks, A., Duran, E. H. & Shah, D. K. (2015). Lapse in embryo transfer training does not negatively affect clinical pregnancy rates for reproductive endocrinology and infertility fellows. Fertil Steril, 103(3), 728-33.e2. PMID: 25557242.

Sparks, A. E. (2015). Human embryo cryopreservation-methods, timing, and other considerations for optimizing an embryo cryopreservation program. (Vols. 33). (2), pp. 128-144. Seminars in Reproductive Medicine. DOI: 10.1055/s-0035-1546826.

Krohn, M., Sparks, A. E. & Shah, D. K. (2015). Outcomes of ovulation induction-intrauterine insemination in lean, overweight, and obese women with polycystic ovary syndrome. Proc Obstet Gynecol, 5(2), Article 5 [ 9 p. ].

Cookingham, L. M., Goossen, R. P., Sparks, A. E., Van Voorhis, B. J. & Duran, E. H. (2015). A successful treatment algorithm for evaluation of early pregnancy after in vitro fertilization. Fertil Steril, 104(4), 932-937.e1. PMID: 26260201.

Rosenbluth, E. M., Shelton, D. N., Wells, L. M., Sparks, A. E. & Van Voorhis, B. J. (2014). Human embryos secrete microRNAs into culture media-a potential biomarker for implantation. Fertil Steril., 101(5), 1493-1500.

Barrett, E. S., Redmon, J. B., Wang, C., Sparks, A. & Swan, S. H. (2014). Exposure to prenatal life events stress is associated with masculinized play behavior in girls. (Vols. 41). pp. 20-27. Neurotoxicology. DOI: 10.1016/j.neuro.2013.12.011.

Jensen, T. K., Swan, S., Jørgensen, N., Toppari, J., Redmon, B., Punab, M., Drobnis, E. Z., Haugen, T. B., Zilaitiene, B., Sparks, A. E., Irvine, D. S., Wang, C., Jouannet, P., Brazil, C., Paasch, U., Salzbrunn, A., Skakkebæk, N. E. & Andersson, A. M. (2014). Alcohol and male reproductive health: a cross-sectional study of 8344 healthy men from Europe and the USA. Hum Reprod, 29(8), 1801-9. PMID: 24893607.

Rosenbluth, E. M., Shelton, D. N., Sparks, A. E., Devor, E., Christenson, L. & Van Voorhis, B. J. (2013). MicroRNA expression in the human blastocyst. Fertil Steril, 99(3), 855-861. PMID: 23211712.

Eppsteiner, E. E., Sparks, A. E., Liu, D. & Van Voorhis, B. J. (2013). Change in oocyte yield in repeated in vitro fertilization cycles: effect of ovarian reserve. Fertil Steril, 101(2), 399-102.

Redmon, J. B., Thomas, W., Ma, W., Drobnis, E. Z., Sparks, A., Wang, C., Brazil, C., Overstreet, J. W., Liu, F., Swan, S. H. & Study for Future Family Research Group, (2013). The Study for Future Families Research Group. Semen parameters in fertile US men: the Study for Future Families. Andrology, 1(6), 806-14. PMID: 24009155.

Mediola, J., Meeker, J. D., Jorgensen, N., Andersson, A. M., Liu, F., Redmon, J. B., Drobnis, E. Z., Sparks, A. E., Wang, C., Hauser, R. & Swan, S. H. (2012). Urinary concentrations of di(2-ethylhexyl) phthalate metabolites and serum reproductive hormones: Pooled analysis of fertile and infertile men. J Androl, 33(3), 488-98. PMID: 21597090.

Sparks, A. E. (2012). Culture systems: embryo culture and monozygotic twinning. Humana Press, SpringerProtocols, 912, 387-97. PMID: 22829386.

Kresowik, J. D., Sparks, A. E. & Van Voorhis, B. J. (2012). Clinical factors associated with live birth after single embryo transfer. Fertility and sterility, 98(5), 1152-6. PMID: 22959461.

Kresowik, J. D., Stegmann, B. J., Sparks, A. E., Ryan, G. L. & Van Voorhis, B. J. (2011). Five-years of a mandatory single-embryo transfer (mSET) policy dramatically reduces twinning rate without lowering pregnancy rates. Fertil Steril, 6, 1367-9. PMID: 21962964.

Mains, L. M., Christenson, L., Yang, B., Sparks, A. E., Mathur, S. & Van Voorhis, B. J. (2011). Identification of apolipoprotein A1 in the human embryonic secretome. Fertility and sterility, 96(2), 422-427.e2. PMID: 21676393.

Martini, S., Van Voorhis, B. J., Stegmann, B. J., Sparks, A. E., Shochet, T., Zimmerman, M. B. & Ryan, G. L. (2011). In vitro fertilization patients support a single blastocyst transfer policy. Fertility and sterility, 96(4), 993-7. PMID: 21868000.

King, J. L., Yang, B., Sparks, A. E., Mains, L. M., Murray, J. C. & Van Voorhis, B. J. (2010). Skewed X inactivation and IVF-conceived infants. Reproductive biomedicine online, 20(5), 660-3. PMID: 20207584.

Gollenberg, A. L., Liu, F., Brazil, C., Drobnis, E. Z., Guzick, D., Overstreet, J. W., Redmon, J. B., Sparks, A., Wang, C. & Swan, S. H. (2010). Semen quality in fertile men in relation to psychosocial stress. Fertil Steril, 93(4), 1104-11. PMID: 19243749.

Van Voorhis, B. J., Thomas, M., Surrey, E. S. & Sparks, A. (2010). What do consistently high-performing in vitro fertilization programs in the US do?. Fertil Steril, 94(4). PMID: 20674899.

Thomas, M. R., Sparks, A. E., Ryan, G. L. & Van Voorhis, B. J. (2010). Clinical predictors of human blastocyst formation and pregnancy after extended embryo culture and transfer. Fertility and sterility, 94(2), 543-8. PMID: 19409548.

Jørgensen, N., Liu, F., Andersson, A. M., Vierula, M., Irvine, D. S., Auger, J., Brazil, C. K., Drobnis, E. Z., Jensen, T. K., Jouannet, P., Overstreet, J. W., Redmon, J. B., Sparks, A., Toppari, J., Wang, C., Skakkebæk, N. E. & Swan, S. H. (2010). Serum inhibin-b in fertile men is strongly correlated with low but not high sperm counts: a coordinated study of 1,797 European and US men. Fertil Steril, 94(6), 2128-2134. PMID: 20149358.

Mendiola, J., Jorgensen, N., Andersson, A. M., Calafat, A. M., Ye, X., Redmon, J. B., Drobnis, E. Z., Wang, C., Sparks, A., Thurston, S. W., Liu, F. & Swan, S. H. (2010). Are environmental levels of bisphenol associated with reproductive function in fertile men?. Environ Health Perspect, 118(9), 1286-91. PMID: 20494855.

Mains, L., Ryan, G. L., Sparks, A. E. & VanVoorhis, B. J. (2009). Sextuplets: an unusual complication of single embryo transfer. (Vols. 91). (3), pp. 932.e1-2. Fertility and Sterility. DOI: 10.1016/j.fertnstert.2008.09.021.

Sparks, A. E., Thomas, M. R., Mains, L. M., Davis, W. A., Ryan, G. L. & Van Voorhis, B. J. (2008). Does insemination method or indication for use of ICSI affect blastocyst quality?. (Vols. 90). (suppl 1), pp. S461. Fertil Steril.

Mains, L., King, J., Yang, B., Sparks, A., Murray, J. & Van Voorhis, B. (2008). To determine the relationship between skewed X chromosome inactivation (XCI) and in-vitro fertilization (IVF). (Vols. 90). (suppl 1), pp. S294-295. Fertil Steril.

Feng, H. L., Han, Y. B., Sparks, A. E. & Sandlow, J. I. (2008). Characterization of human sperm antigens reacting with anti-sperm antibodies from an infertile female patient's serum. Journal of andrology, 29(4), 440-8. PMID: 18359754.

Sparks, A. E., Thomas, M. R., Mains, L. M., Sparks, A. E., Ryan, G. L. & Van Voorhis, B. J. (2008). Clinical predictors of successful pregnancy following in vitro human blastocyst culture and transfer. (Vols. 90). (suppl 1), pp. S410. Fertil Steril.

Mains, L., Shochet, T., Thomas, M., Sparks, A., Ryan, G. & Van Voorhis, B. (2008). Clinical characteristics and outcomes of patients undergoing single embryo transfer. (Vols. 90). (suppl 1), pp. S403-S404. Fertil Steril.

Stahl, B. C., Patil, S. R., Syrop, C. H., Sparks, A. E. & Wald, M. (2007). Supernumerary minute ring chromosome 14 in a man with primary infertility and left varicocele. Fertility and sterility, 87(5), 1213.e1-3. PMID: 17208235.

Ryan, G. L., Sparks, A. E., Sipe, C. S., Syrop, C. H., Dokras, A. & Van Voorhis, B. J. (2007). A mandatory single blastocyst transfer policy with educational campaign in a United States IVF program reduces multiple gestation rates without sacrificing pregnancy rates. Fertility and sterility, 88(2), 354-60. PMID: 17490657.

Thomas, M. R., Sipe, C. S., Sparks, A. E., Dokras, A., Ryan, G. L. & Van Voorhis, B. J. (2007). Clinical predictors of human blastocyst formation in vitro. (Vols. 88). (suppl 1), pp. S138-S139. Fertil Steril.

Sparks, A. E., Ryan, G. L., Sipe, C. S., Thomas, M. R., Dokras, A. & Van Voorhis, B. J. (2007). Mandatory single embryo transfer in a selected patient population reduces the risk of multifetal gestation without compromising pregnancy rate. (Vols. 88). (suppl 1), pp. S102-S103. Fertil Steril.

Stokes-Riner, A., Thurston, S. W., Brazil, C., Guzick, D., Liu, F., Overstreet, J. W., Wang, C., Sparks, A., Redmon, J. B. & Swan, S. H. (2007). One semen sample or 2? Insights from a study of fertile men. J Androl, 28(5), 638-43. PMID: 17522415.

Hollinrake, E., Abreu, A., Maifield, M., Van Voorhis, B. J. & Dokras, A. (2006). Increased Risk Of Depression In Women With Polycystic Ovary Syndrome. (Vols. 84). (suppl 1), pp. S55. Fertil Steril.

Van Voorhis, B. J., Sparks, A. E., Syrop, C. H., Sipe, C. S., Ryan, G. L. & Dokras, A. (2006). Anovulation may be a risk factor for major birth defects in children born after infertility treatment. (Vols. 86). (suppl 1), pp. S7. Fertility and sterility.

Dokras, A., Baredziak, L., Blaine, J., Syrop, C., Van Voorhis, B. J. & Sparks, A. (2006). Obstetric outcomes after in vitro fertilization in obese and morbidly obese women. Obstet Gynecol, 108(1), 61-9.

Sparks, A. E., Ryan, G. L., Sipe, C. S., Dokras, A. J., Syrop, C. & Van Voorhis, B. J. (2005). Reducing the Risk of Multi-Fetal Gestation by Implementation of a Single Blastocyst Transfer Policy. (Vols. 84). (suppl 1), pp. S86-S87. Fertil Steril.

Van Voorhis, B. J., Greensmith, J. E., Dokras, A., Sparks, A. E., Simmons, S. T. & Syrop, C. H. (2005). Hyperbaric oxygen and ovarian follicular stimulation for in vitro fertilization: a pilot study. Fertility and sterility, 83(1), 226-8. PMID: 15652917.

Wald, M., Sparks, A., Sandlow, J., Van Voorhis, B. J., Syrop, C. H. & Niederberger, C. S. (2005). Computational models for prediction of IVF/ICSI outcomes with surgically retrieved spermatozoa. Reprod Biomed Online., 11(3), 325-31. PMID: 16176672.

Olson, C. K., Keppler-Noreuil, K. M., Romitti, P. A., Budelier, W. T., Ryan, G., Sparks, A. E. & Van Voorhis, B. J. (2005). In vitro fertilization is associated with an increase in major birth defects. Fertility and sterility, 84(5), 1308-15. PMID: 16275219.

Ryan, G. L., Moss, V., Davis, W. A., Sparks, A. E., Dokras, A. & Van Voorhis, B. J. (2005). Oral ovulation induction agents combined with low-dose gonadotropin injections and intrauterine insemination: cost- and clinical effectiveness. The Journal of reproductive medicine, 50(12), 943-50. PMID: 16444896.

Sparks, A. E., Ryan, G. L., Dokras, A., Davis, W. A., Syrop, C. & Van Voorhis, B. J. (2004). Day 5 transfers - When are two blastocysts too many?. (Vols. 82). (suppl 1), pp. S220-221. Fertil Steril.

Ryan, G. L., Olson, C. K., Sparks, A. E. & Van Voorhis, B. J. (2004). The risk of low birth weight after intrauterine insemination (IUI). (Vols. 82). (suppl 1), pp. S17. Fertil Steril.

Olson, C. K., Syrop, C. H., Dokras, A., Ryan, G. L., Sparks, A. E. & Van Voorhis, B. J. (2004). Assisted reproduction and birth defects. (Vols. 82). (suppl 2), pp. S18-S19. Fertil Steril.

Ryan, G. L., Moss, V., Davis, W. A., Sparks, A. E., Dokras, A. & Van Voorhis, B. J. (2004). Efficacy and cost-effectiveness of gonadotropin/intrauterine insemination therapy with and without oral induction agents. (Vols. 82). (suppl 2), pp. S137. Fertil Steril.

Fretz, P. C., Blaine, J., Milleman, J., Sparks, A. E. & Sandlow, J. I. (2003). Pregnancy rates following varicocele repair without seminal improvement. (Vols. 80). (suppl 3), pp. S229. Fertil Steril.

Olson, C. K., Syrop, C. H., Dokras, A., Sparks, A. E., Davis, W. A. & Van Voorhis, B. J. (2003). Assisted reproduction and risk of birth defects. (Vols. 80). (suppl 3), pp. S175. Fertil Steril.

Sparks, A. E., Van Voorhis, B. J., Holz, L. R., Dokras, A., Davis, W. A. & Syrop, C. H. (2003). Predictive value of strict criteria sperm morphology for intrauterine insemination outcomes. (Vols. 80). (suppl 3), pp. S48-49. Fertil Steril.

Feng, H. L., Sandlow, J. I. & Sparks, A. E. (2001). Decreased expression of the heat shock protein hsp70-2 is associated with the pathogenesis of male infertility. Fertility and sterility, 76(6), 1136-9. PMID: 11730740.

Schrepferman, C. G., Carson, M. R., Sparks, A. E. & Sandlow, J. I. (2001). Need for sperm retrieval and cryopreservation at vasectomy reversal. The Journal of urology, 166(5), 1787-9. PMID: 11586225.

Van Voorhis, B. J., Barnett, M., Sparks, A. E., Syrop, C. H., Rosenthal, G. & Dawson, J. (2001). Effect of the total motile sperm count on the efficacy and cost-effectiveness of intrauterine insemination and in vitro fertilization. Fertility and sterility, 75(4), 661-8. PMID: 11287015.

Feng, H. L., Sandlow, J. I., Sparks, A. E. & Eddy, M. (2000). Decreased Expression of hsp-70, Estrogen and Progesterone Receptors Is Associated with the Pathogenesis of Male Infertility. (Vols. 74). (3), pp. S126. Fertility and Sterility.

Van Voorhis, B. J., Barnett, M., Sparks, A. E., Syrop, C. H., Dokras, A. & Sandlow, J. I. (2000). Prognostic Factors for Pregnancy Following Intrauterine Insemination and In Vitro Fertilization. (Vols. 74). (suppl 1), pp. S46. Fertility and Sterility.

Sandlow, J. I., Zenni, M., Ehle, J., Donovan, F. & Sparks, A. E. (2000). Size of Varicocele Corresponds with Pregnancy Rates Following Surgical Treatment: Updated Results. (Vols. 74). (suppl 1), pp. S87. Fertility and Sterility.

Schrepferman, C. G., Ehle, J., Sparks, A. E., Donovan Jr, J. F. & Sandlow, J. I. (2000). Preoperative Total Motile Count (TMC) and Follicle-Stimulating Hormone (FSH) Are Predictive of Response to Varicocelectomy. (Vols. 74). (suppl 1), pp. S240. Fertility and Sterility.

Feng, H. L., Sandlow, J. I., Sparks, A. E., Sandra, A. & Zheng, L. J. (1999). Decreased expression of the c-kit receptor is associated with increased apoptosis in subfertile human testes. Fertility and sterility, 71(1), 85-9. PMID: 9935121.

Van Voorhis, B. J., Grinstead, D. M., Sparks, A. E., Gerard, J. L. & Weir, R. F. (1999). Establishment of a successful donor embryo program: medical, ethical, and policy issues. Fertility and sterility, 71(4), 604-8. PMID: 10202866.

Beilin, Y., Bodian, C. A., Mukherjee, T., Andres, L. A., Vincent, R. D., Hock, D. L., Sparks, A. E., Munson, A. K., Minnich, M. E., Steinkampf, M. P., Christman, G. M., McKay, R. S. & Eisenkraft, J. B. (1999). The use of propofol, nitrous oxide, or isoflurane does not affect the reproductive success rate following gamete intrafallopian transfer (GIFT): a multicenter pilot trial/survey. Anesthesiology, 90(1), 36-41. PMID: 9915310.

Syrop, C. H., Dawson, J. D., Husman, K. J., Sparks, A. E. & Van Voorhis, B. J. (1999). Ovarian volume may predict assisted reproductive outcomes better than follicle stimulating hormone concentration on day 3. Human reproduction (Oxford, England), 14(7), 1752-6. PMID: 10402382.

Van Voorhis, B. J., Sparks, A. E. (1999). Semen analysis: what tests are clinically useful?. Clinical obstetrics and gynecology, 42(4), 957-71. PMID: 10572708.

Stovall, D. W., Allen, B. D., Sparks, A. E., Syrop, C. H., Saunders, R. G. & VanVoorhis, B. J. (1999). The cost of infertility evaluation and therapy: findings of a self-insured university healthcare plan. Fertility and sterility, 72(5), 778-84. PMID: 10560977.

Feng, H., Sandlow, J. I., Sparks, A. E. & Sandra, A. (1999). Development of an immunocontraceptive vaccine. Current status. The Journal of reproductive medicine, 44(9), 759-65. PMID: 10509297.

Sparks, A. E. (1998). Human embryo cryopreservation: Benefits and adverse consequences. In , R. F. Weir (Eds.) Stored Tissue Samples: ethical, legal and public policy implications. Iowa City: University of Iowa Press.

Sandlow, J. I., Sparks, A. E. (1998). Evaluation of the male in couples seeking reproductive assistance: going beyond the seminal fluid analysis. Asst Reprod Rev, 8, 36-39.

Sparks, A. E., Basuray, R. (1998). Human sperm cryopreservation. In G. Allahbadia (Eds.) Intrauterine Insemination. Mumbai: Rotunda Medical Technologies Pvt. Ltd.

Donovan, J. F., DiBaise, M., Sparks, A. E., Kessler, J. & Sandlow, J. I. (1998). Comparison of microscopic epididymal sperm aspiration and intracytoplasmic sperm injection/in-vitro fertilization with repeat microscopic reconstruction following vasectomy: is second attempt vas reversal worth the effort?. Human reproduction (Oxford, England), 13(2), 387-93. PMID: 9557844.

Stovall, D. W., Parrish, S. B., Van Voorhis, B. J., Hahn, S. J., Sparks, A. E. & Syrop, C. H. (1998). Uterine leiomyomas reduce the efficacy of assisted reproduction cycles: results of a matched follow-up study. Human reproduction (Oxford, England), 13(1), 192-7. PMID: 9512256.

Stovall, D. W., Van Voorhis, B. J., Sparks, A. E., Adams, L. M. & Syrop, C. H. (1998). Selective early elimination of luteal support in assisted reproduction cycles using a gonadotropin-releasing hormone agonist during ovarian stimulation. Fertility and sterility, 70(6), 1056-62. PMID: 9848295.

Van Voorhis, B. J., Sparks, A. E., Syrop, C. H. & Stovall, D. W. (1998). Ultrasound-guided aspiration of hydrosalpinges is associated with improved pregnancy and implantation rates after in-vitro fertilization cycles. Human reproduction, 13(3), 736-9. PMID: 9572444.

Cooper, C. S., Perry, P. J., Sparks, A. E., MacIndoe, J. H., Yates, W. R. & Williams, R. D. (1998). Effect of exogenous testosterone on prostate volume, serum and semen prostate specific antigen levels in healthy young men. The Journal of urology, 159(2), 441-3. PMID: 9649259.

Donovan, J. F., DiBaise, M., Sparks, A. E., Kessler, J. A. & Sandlow, J. I. (1997). Is Vas Reconstruction Worth the Effort? Comparison of Repeat Microscopic Reconstruction of Vas Following Failed Vasectomy Reversal and Advanced Reproductive Techniques. (Vols. 68). (suppl 1), pp. S35. Fertility and Sterility.

Van Voorhis, B. J., Stovall, D. W., Sparks, A. E. & Syrop, C. (1997). Tubal Versus Uterine Transfer of Cryopreserved Embryos: A Comparative Analysis. (Vols. 68). (suppl 1), pp. S191. Fertility and Sterility.

Stovall, D. W., Van Voorhis, B. J., Sparks, A. E., Adams, L. M. & Syrop, C. H. (1997). Selective Discontinuation of Luteal Phase Support in Assisted Reproduction Cycles Using a Gonadotropin-Releasing Hormone Agonist and Human Menopausal Gonadotropins for Ovarian Stimulation. (Vols. 68). (suppl 1), pp. S207-S208. Fertility and Sterility.

Mukherjee, T., Billin, Y., Andres, L. A., Vincent, R. D. & Sparks, A. E. (1997). Gamete Intrafallopian Transfer Pregnancy Rates are not Affected by Use of Propofol Anesthesia. (Vols. 68). (suppl 1), pp. S136. Fertility and Sterility.

Van Voorhis, B. J., Sparks, A. E., Allen, B. D., Stovall, D. W., Syrop, C. H. & Chapler, F. K. (1997). Cost-effectiveness of infertility treatments: a cohort study. Fertility and sterility, 67(5), 830-6. PMID: 9130886.

Sparks, A. E., Smith, K. A., Nolan, P. J., Hahn, S. J., Van Voorhis, B. J., Stovall, D. W. & Syrop, C. H. (1996). Effect of assisted hatching on clinical pregnancy rate following cryopreserved embryo transfer: results of a prospective randomized trial. (Vols. 66). (suppl 1), pp. S115. Fertility and Sterility.

Stovall, D. W., Van Voorhis, B. J., Mattingly, K. L., Sparks, A. E., Chapler, F. K. & Syrop, C. H. (1996). The effectiveness of sublingual progesterone administration during cryopreserved embryo transfer cycles: results of a matched follow-up study. Fertility and sterility, 65(5), 986-91. PMID: 8612862.

Sandlow, J., Donovan, J., Sparks, A., Syrop, C., Van Voorhis, B. & Stovall, D. (1996). Microsurgical epididymal sperm aspiration. Iowa Med., 86(9), 367-8. PMID: 8961632.

Van Voorhis, B. J., Dawson, J. D., Stovall, D. W., Sparks, A. E. & Syrop, C. H. (1996). The effects of smoking on ovarian function and fertility during assisted reproduction cycles. Obstetrics and gynecology, 88(5), 785-91. PMID: 8885914.

Sandlow, J., Donovan, J., Sparks, A., Syrop, C., Van Voorhis, B. & Stovall, D. (1996). Microsurgical epididymal sperm aspiration. Iowa Med., 86(9), 367-8. PMID: 8961632.

Donovan Jr, J., Cooper, C., Kwon, E. D., Sandlow, J. I. & Sparks, A. (1995). Preservation of fertility in the testicular cancer patient: Considerations before and after cancer therapy. In , L. Weissbach (Eds.) Hoden-tunoren Testis Cancer. Berlin: Blackwell Wissenschafts-Verlag.

Sparks, A. E. (1995). Gamete microsurgery for assisted fertilization. Microsurgery, 16(5), 345-8. PMID: 7565026.

Syrop, C. H., Sparks, A. E., Van Voorhis, B. J., Hahn, S. J., Kantamneni, J. R. & Stovall, D. W. (1995). Embryo adoption and embryo research: will patients donate their embryos?. Fertility and Sterility, 64(suppl), S208.

Van Voorhis, B. J., Syrop, C. H., Vincent, R. D., Chestnut, D. H., Sparks, A. E. & Chapler, F. K. (1995). Tubal versus uterine transfer of cryopreserved embryos: a prospective randomized trial. Fertility and sterility, 63(3), 578-83. PMID: 7851590.

Van Voorhis, B. J., Syrop, C. H., Allen, B. D., Sparks, A. E. & Stovall, D. W. (1995). The efficacy and cost effectiveness of embryo cryopreservation compared with other assisted reproductive techniques. Fertility and sterility, 64(3), 647-50. PMID: 7641925.

Vincent, R. D., Syrop, C. H., Van Voorhis, B. J., Chestnut, D. H., Sparks, A. E., McGrath, J. M., Choi, W. W., Bates, J. N. & Penning, D. H. (1995). An evaluation of the effect of anesthetic technique on reproductive success after laparoscopic pronuclear stage transfer. Propofol/nitrous oxide versus isoflurane/nitrous oxide. Anesthesiology, 82(2), 352-8. PMID: 7856893.

Van Voorhis, B. J., Syrop, C. H., Vincent, R. & Sparks, A. E. (1994). Increased pregnancy rates with tubal transfer of cryopreserved embryos compared to uterine transfer; a prospective, randomized trial. (Vols. 62). (suppl), pp. S88. Fertility and Sterility.

Canseco, R. S., Sparks, A. E., Page, R. L., Russell, C. G., Johnson, J. L., Velander, W. H., Pearson, R. E., Drohan, W. N. & Gwazdauskas, F. C. (1994). Gene transfer efficiency during gestation and the influence of co-transfer of non-manipulated embryos on production of transgenic mice. Transgenic research, 3(1), 20-5. PMID: 8142948.

Sparks, A., Canseco, R. S., Russell, C. G., Johnson, J. L., Page, J. L., Velander, W. H., Mcgilliard, M. L. & Gwazdauskas, F. C. (1994). Development of bovine morulae after bisection and biopsy and assessment of DNA amplification by the polymerase chain reaction. Animal Reproductive Science, 35(1-2), 1-7.

Krisher, R. L., Gwazdauskas, F. C., Page, R. L., Russell, C. G., Canseco, R. S., Sparks, A. E., Velander, W. H., Johnson, J. L. & Pearson, R. E. (1994). Ovulation rate, zygote recovery and follicular populations in FSH-superovulated goats treated with PGF(2alpha) and/or GnRH. Theriogenology, 41(2), 491-8. PMID: 16727407.

Sparks, A. E., Canseco, R. S., Russell, C. G., Johnson, J. L., Moll, H. D., Velander, W. H. & Gwazdauskas, F. C. (1994). Effects of time of deoxyribonucleic acid microinjection on gene detection and in vitro development of bovine embryos. Journal of dairy science, 77(3), 718-24. PMID: 8169279.

Gwazdauskas, F. C., Page, R. L., Russell, C. G., Canseco, R. S., Sparks, A. E., Velander, W. H., Johnson, J. L. & Pearson, R. E. (1992). FSH induced superovulatory responses of dairy goats with PGF2a and GnRH. (Vols. 75). (suppl 1), pp. 239. J. Dairy Sci..

Sparks, A. E., Gwazdauskas, F. C. & McGilliard, M. L. (1992). Culture of one-cell bovine embryos in explanted mouse oviduct and bovine oviductal epithelial cells. Theriogenology, 37(3), 587-94. PMID: 16727061.

Sparks, A. E., Canseco, C. G., Russell, C. G., Moll, H. D., Velander, W. H., Johnson, J. L. & Gwazdauskas, F. C. (1992). Utilization of pronuclear DNA microinjection, in vitro culture, microsurgery, and the polymerase chain reaction technique for production and selection of transgenic bovine preimplantation embryos. (Vols. 46). (suppl 1), pp. 71. Biol. Reprod..

Williams, B. L., Sparks, A. E., Canseco, R. S., Knight, J. W., Johnson, J. L., Velander, W. H., Page, R. L., Drohan, W. N., Kornegay, E. T., Pearson, R. E., Wilkins, T. D. & Gwazdauskas, F. C. (1992). Evaluation of systems for collection of porcine zygotes for DNA microinjection and transfer. Theriogenology, 38(3), 501-11. PMID: 16727153.

Canseco, R. S., Sparks, A. E., Pearson, R. E. & Gwazdauskas, F. C. (1992). Embryo density and medium volume effects on early murine embryo development. Journal of assisted reproduction and genetics, 9(5), 454-7. PMID: 1482840.

Thuemmel, A. E., Gwazdauskas, F. C., Whittier, W. D. & McGilliard, M. L. (1992). Effect of progesterone supplementation in repeat-breeder cattle on conception and plasma progesterone. J Endocrinol Invest., 15(5), 393-6. PMID: 1506623.

Williams, B. L., Sparks, A. E., Canseco, R. S., Knight, J. W., Johnson, J. L., Velander, W. H., Page, R. L., Drohan, W. N., Young, J. M. & Pearson, R. E. (1992). In vitro development of zygotes from prepubertal gilts after microinjection of DNA. Journal of animal science, 70(7), 2207-11. PMID: 1644695.

Sparks, A. E., Canseco, R. S. & Gwazdauskas, F. C. (1991). Evaluation of bovine morula bisection and biopsy on subsequent embryonic development in vitro. pp. 59. Symposium on Preimplantation Embryo Development, Boston, MA.

Sparks, A. E., Whittier, W. D., Canseco, R. S., McGilliard, M. L. & Gwazdauskas, F. C. (1991). The influence of a priming dose of PMSG on follicular development and response to superovulation in dairy cattle. (Vols. 74). (suppl 1), pp. 194. J. Dairy Sci.

Sparks, A. E., Whittier, W. D., McGilliard, M. L., Pearson, R. E. & Gwazdauskas, F. C. (1991). Effect of microdrop size and number of embryos per microdrop on early murine embryos development. pp. 29. Symposium on Preimplantation Embryo Development, Boston, MA.

Thuemmel, A. E., Gwazdauskas, F. C., Canseco, R. S., Pearson, R. E. & Jochle, W. (1991). Culture of bovine embryos in deproteinized hemodialysate-supplemented media and immature mouse uterine horns. J Dairy Sci, 74(6), 1815-20.

Williams, B. L., Knight, J. W., Canseco, R. S., Sparks, A. E., Gwazdauskas, F. C., Kornegay, E. T., Velander, W. H. & Wilkins, T. D. (1990). Comparison of synchronization procedures for the collection of one-cell porcine embryos. (Vols. 68). (suppl 1), pp. 431. J. Anim. Sci..

Thuemmel, A. E., Gwazdauskas, F. C., Canseco, R. S. & McGilliard, M. L. (1989). (Vols. 72). (suppl 1), pp. 401. J. Dairy Sci..

Thuemmel, A. E., Gwazdauskas, F. C., Whittier, W. D. & McGilliard, M. L. (1988). Plasma progesterone and conception rate in repeat-breeder cattle administered progesterone from d 6-10 following insemination. (Vols. 71). (suppl 1), pp. 137. J. Dairy Sci..