Dr. Evan Taerk
Published Research

On this page you will find research and published papers by Drs. Ryan and Claessens and many other associates.  These papers deal with studies and findings related to infertility and its treatment.  Please read at your leisure as you will find many interesting and important facts to ponder.


Posting                   Publication
Date

2 Dec 2016    EAJ Ryan, EA Claessens, S Blanco Mejia. Pregnancy Rates in Women with Diminished Ovarian Reserve (DOR) Undergoing IVF. A 10 Year Experience Using DHEA Supplementation. 2nd World Congress on Recurrent Pregnancy Loss, 19-22 January 2017.
 
2 Dec 2016    I Gat, S Blanco Mejia, H Balakier, CL Librach, A Claessens, and EAJ Ryan. The use of coenzyme Q10 and DHEA during IUI and IVF cycles in patients with decreased ovarian reserve. Gynecol Endocrinol. 2016 Jul;32(7):534-7
 
21 Oct 2015    I. Gat, S. Blanco Mejia, Balakier H, C. L. Librach, A. Claessens, E.A. Ryan. The use of coenzyme Q10 and DHEA during COH and IVF cycles in patients with decreased ovarian reserve (DOR). Fertility and Sterility. 2015;104(3), Supplement e325
 
3 Oct 2015    Edward AJ Ryan, Sonia Blanco Mejia and E. Anne Claessens. An unusual case of ischemic stroke following ovarian stimulation for oocyte donation. A case report. Canadian Fertility and Andrology Society (CFAS) Annual Meeting. October 3rd, 2015.
 
5 Dec 2014    Edward Ryan, Sonia Blanco Mejia, Anne Claessens. The cost-effectivenes of COS/IUI Vs. IVF/ICSI in 436 dehydroepinadrosterone (DHEA) supplemented cycles. 43rd Association of Academic Professionals in Obstetrics and Gynaecology (APOG) Annual Meeting: Innovation in Medical Education. Dec 6th, 2014.
 
12 Sep 2014    Edward Ryan, Sonia Blanco Mejia, Anne Claessens. The cost-effectiveness of controlled ovarian stimulation with intra uterine insemination (COS/IUI) versus IVF with intra cytoplasmic injection (IVF/ICSI) in 434 dehydroepiandrosterone (DHEA) supplemented cycles. 2014 Canadian Fertility and Andrology Society (CFAS) Annual Meeting. September 12th, 2014.
 
9 May 2014    Sonia Blanco Mejia and Edward A.J. Ryan. Pregnancy rates in poor-ovarian-response patients undergoing conventional IVF treatment supplemented with dehydroepiandrosterone and coenzyme Q10. 31st Annual Research Day & Henderson lecture, Department of Obstetrics and Gynecology, University of Toronto. May 11th, 2014.
 
14 Oct 2013    E.A.J. Ryan, E.A. Claessens, S. Blanco Mejia. Pregnancy rates in patients with diminished ovarian reserve (DOR) treated with dehydroepiandrosterone (DHEA) some with coenzyme Q10 (CoQ10). Meeting of the American Society of Reproductive Medicine, Boston, USA. October 2013.
 
27 Sep 2013    E.A.J. Ryan, S. Blanco Mejia, E.A. Claessens. Improving fertility in patients with diminished ovarian reserve undergoing controlled ovarian hyperstimulation with intra uterine insemination. Meeting of the Canadian Fertility and Andrology Society, Vancouver, Canada. September 2013.
 
7 Sep 2012    E.A. Claessens, S. Blanco Mejia, M. Maroleanu, M. Moruzanu, E.A.J. Ryan. Pregnancy outcome in 401 cycles in women with diminished ovarian reserve undergoing controlled ovarian Hyperstimulation and intrauterine insemination, pretreated with exogenous androgens. Meeting of the Canadian Fertility and Andrology Society, Ottawa, Canada. September 2012.
 
7 Sep 2012    E.A. Claessens, S. Blanco Mejia, M. Maroleanu, M. Moruzanu, E.A.J. Ryan. Analysis of 146 IVF cycles in women with diminished ovarian reserve or premature ovarian failure undergoing IVF. Meeting of the Canadian Fertility and Andrology Society, Ottawa, Canada. September 2012.
 
9 Mar 2012    E.A. Claessens, S. Blanco Mejia, M. Maroleanu, M. Moruzanu, E.A.J. Ryan. The Role of Androgen Supplementation in the Improvement of IVF Success Rates in Older Women - A 5 Year Experience. World Congress of Gynecological Endocrinology, Firenze, Italy. March 2012.
 
22 Sep 2011    E.A.J. Ryan, S. Blanco Mejia, M. Maroleanu, M. Moruzanu, E.A. Claessens. The use of DHEA in women with DOR/POR and older women to improve their fecundity, reduce their pregnancy loss and cycle cancellation rates. Meeting of the Canadian Fertility and Andrology Society, Toronto, Canada. September 2011.
 
22 Sep 2011    E.A.J. Ryan, S. Blanco Mejia, M. Maroleanu, M. Moruzanu, E.A. Claessens. Exogenous androgens can improve pregnancy and take home baby rates in women over 40 years of age. Fact or fiction. Meeting of the Canadian Fertility and Andrology Society, Toronto, Canada. September 2011.
 
30 Sep 2010    E.A.J. Ryan, S. Blanco Mejia, M. Maroleanu, M. Moruzanu, E.A. Claessens. An analysis of the effects of exogenous androgen administration on fertility rates in different age groups and with different adjunctive treatments. Meeting of the Canadian Fertility and Andrology Society, Vancouver, Canada. September 2010
 
7 May 2010    S. Blanco Mejia, E.A. Claessens, M. Maroleanu, E.A.J. Ryan. The role of androgen supplementation in ovulation induction in older women, Annual Research Day, Obstetrics & Gynaecology, University of Toronto, Toronto, Canada. May 2010.
 
5 Mar 2010    E.A. Claessens, S. Blanco Mejia, M. Maroleanu, E.A. Ryan. The role of androgen supplementation in ovulation induction in older women, World Congress of Gynecological Endocrinology, Firenze, Italy. March 2010.
 
19 Nov 2009    Bedaiwy MA, Ryan E, Shaaban O, Claessens EA, Blanco Mejia S, Casper RF. Follicular conditioning with dehydroepiandrosterone co-treatment improves IUI outcome in clomiphene citrate patients. Meeting of the Canadian Fertility and Andrology Society, Montreal, Canada, November 2009.
 
19 Nov 2009    Bedaiwy MA, Ryan E, Shaaban O, Claessens EA, Blanco Mejia S, Casper RF. Dehydroepiandrosterone co-treatment in infertile women 35 years old and older receiving controlled ovarian stimulation and timed intercourse. Meeting of the Canadian Fertility and Andrology Society, Montreal, Canada, November 2009.
 
19 Nov 2009    E.A.J. Ryan, S. Blanco Mejia, M. Maroleanu, E.A. Claessens. A novel method to improve the success rate of I.V.F./I.C.S.I. in older women with diminished ovarian reserve using dehydroepiandrosterone (DHEA) supplementation. Meeting of the Canadian Fertility and Andrology Society, Montreal, Canada. November 2009.
 
19 Nov 2009    E.A.J. Ryan, S. Blanco Mejia, M. Maroleanu, E.A. Claessens. A re-evaluation of the efficacy of COH/IUI in older women with diminished ovarian reserve supplemented with dehydroepiandrosterone (DHEA). Meeting of the Canadian Fertility and Andrology Society, Montreal, Canada, November 2009
 
7 Oct 2009    Gleicher, N.; Ryan, E.; Weghofer, A.; Blanco Mejia, S and David H Barad. Miscarriage rates after dehydroepiandrosterone (DHEA) supplementation in women with diminished ovarian reserve: a case control study. Reproductive Biology and Endocrinology, 2009. 7:108.
 
28 Sep 2009    E.A.J. Ryan, E.A. Claessons, S. Blanco Mejia. The sex ratio of offspring born to women using dehydroepiandrosterone (DHEA) to improve ovarian response. Meeting of the American Society for Reproductive Medicine, Atlanta, USA. November 2008.
 

 

Additional Research, Published Papers and Studies

  1. Ryan, E.A. and S.A. Mehmi, A case report of primary adenocarcinoma of the fallopian tube. Am J Obstet Gynecol, 1985. 151(2): p. 211-2. http://www.ncbi.nlm.nih.gov/pubmed/3970088
  2. Dische, M.R., et al., Genital mycoplasma infection. Intrauterine infection: pathologic study of the fetus and placenta. Am J Clin Pathol, 1979. 72(2): p. 167-74http://www.ncbi.nlm.nih.gov/pubmed/474493
  3. Quinn, P.A., Mycoplasma infection of the fetus and newborn. Prog Clin Biol Res, 1988. 281: p. 107-51.  http://www.ncbi.nlm.nih.gov/pubmed/3051032
  4. Quinn, P.A., et al., A prospective study of microbial infection in stillbirths and early neonatal death. Am J Obstet Gynecol, 1985. 151(2): p. 238-49http://www.ncbi.nlm.nih.gov/pubmed/3970093
  5. Quinn, P.A. and M. Petric, Anticomplementary activity in serum of women with a history of recurrent pregnancy loss. Am J Obstet Gynecol, 1988. 158(2): p. 368-72http://www.ncbi.nlm.nih.gov/pubmed/3341412
  6. Quinn PA, Shewchuk AB, Shuber J, Lie K, Ryan E, Sheu M, and Chipman ML. Serologic evidence of ureaplasma urealyticum infection in women with spontaneous pregnancy loss. Am J Obstet Gynecol, 1983. 145(2): p. 245-50. http://www.ncbi.nlm.nih.gov/pubmed/6849359
  7. Quinn PA, Shewchuk AB, Shuber J, Lie KI, Ryan E, Chipman ML, and Nocilla DM. Efficacy of antibiotic therapy in preventing spontaneous pregnancy loss among couples colonized with genital mycoplasmas. Am J Obstet Gynecol, 1983. 145(2): p. 239-44. http://www.ncbi.nlm.nih.gov/pubmed/6849358
  8. Quinn, P.A., et al., Chorioamnionitis: its association with pregnancy outcome and microbial infection. Am J Obstet Gynecol, 1987. 156(2): p. 379-87. http://www.ncbi.nlm.nih.gov/pubmed/3826174
  9. Quinn, P.A., et al., Serological evidence of Ureaplasma urealyticum infection in neonatal respiratory disease. Yale J Biol Med, 1983. 56(5-6): p. 565-72http://www.ncbi.nlm.nih.gov/pubmed/6679149
  10. Gideon Koren, Cameron Gilbert and Maria Valois. Metformin use during the first trimester of pregnancy. Is it safe? Canadian Family Physician February 2006 vol. 52 no. 2 171-172. http://www.cfp.ca/content/52/2/171.short
  11. Case report on In-Vitro Maturation of immature oocytes in minimally stimulated ovaries and embryo quality . Presented at the American Fertility Society meeting in San Diego, November, 2000.  R. Chian, et al. 
  12. Serologic evidence of Ureaplasma Urealyticum infections in women with spontaneous pregnancy loss.  Dr.'s Quinn P.A., Shewchuk K., Lie K.I., Ryan E., Sheu, Chipman M.L., et al.  American Journal OBGYN; January 15th, Vol 145 #2, pp 245-250.
  13. Efficacy of antibiotic therapy in preventing spontaneous pregnancy loss among couples colonized with genital mycoplasma.  By Dr.'s Quinn P.A., Shewchuk A.B., Shuber J., Lie K.I., Ryan E., Chipman M.L., Nocilla D.M.  American Journal OBGYN; January 15th, 1983, Volume 145 #2, pp 239-244.
  14. Prevalence of antibody to Chlamydia Trachomatis in spontaneous abortion and Infertility.  Quinn et al.
  15. Efficacy of doxycycline in the eradication of mycoplasma from the genital tract of couples with reproductive failure; American Journal of OBGYN. Quinn et al.
  16. Recurrence of genital mycoplasma infections in pregnancy, Proc. of 49th conjoint meeting on Infectious diseases, Ottawa, Ont. November 25-27, 1981.
  17. Incidence of antibody to Chlamydia trachomatis in spontaneous abortion and infertility.  Quinn, et al.
  18. Genital mycoplasma and their recurrence in spontaneous pregnancy loss.  Quinn, et al.  Presented at 1st International Conference on Ureaplasma Urealyticum infections, Seattle, WA.  October 10 - 12, 1985.
  19. Abstract:  "A possible association between endometrial biopsy and increased implantation and pregnancy rate in subsequent frozen embryo transfer."  Esfandiari N., Claessens, E.A., Ryan, E., Gotlieb, L., Casper, R.F.A.  Presented at the A.S.R.M.  October 5. 16 - 20, 2004.  Philadelphia, PA.
  20. Gargaun S, Ryan E, Greenblatt E, Fettes I, Shapiro H, Padjen A, Nulman I, Vlois M, and Koren G. Pregnancy outcome in women with polycystic ovarian syndrome exposed to metformin. Canadian Journal of Clinical Pharmacology, Volume 10 (3) - Autumn, 2003.
  21. Effect of a statin on in-vitro model of endometriosis; Esfandiari N., Khazaei, M., A.I.J., Gotlieb, L., Ryan, E., Casper, R.F.  Fertility and Sterility, Volume 87, #2 - February 2007.
  22. The presence of pinopods in the human endometrium does not delineate the implantation window.  Quinn, C.E., Ryan, E., Claessens, E.A., Greenblatt, E., et al.  Fertility and Sterility, Volume 87, #5 - May, 2007.
  23. Expression of pinopods in the human endometrium during the secretology phase of the menstrual cycle.  Quinn, C.E., Ryan, E.A., Claessens, E.A., Greenblatt, E., Esfandiari, N., Casper, R.F.  Annual meeting of C.F.A. Society, Montreal, P.Q., Canada.  October 15 - 19, 2005.
  24. Successful pregnancy following transfer of embryos from oocytes with abnormal zona pellucida and cytoplasmic morphology.  Esfandiari, N., Ryan, E., Gotlieb, L., Casper, R.F.  Fertility & Sterility, November 11, 2005.  Reproductive Biomedicine Online, 2005, Volume 11(5): 620-3.
  25. A possible association between endometrial biopsy and increased implantation rates in subsequent frozen embryo transfer.  Esfandiari, N., Claessens, E.A., Ryan, E., Casper, R.F., et al.  Abstract submission to A.S.R.M., 2004.
  26. Pregnancy outcome after the use of metformin in PCOS patients.  Bedawy, M.A., Shabaan, O.M., Ryan, E., Casper, R.F.  Presented at A.S.R.M., Washington, D.C., October, 2007.
  27. Dehydroepiandrosterone (DHEA) supplementation in women with diminished ovarian reserve reduces spontaneous miscarriage rates:  a multicentric study.  Ryan, E., Gleisher, B.D.; Toronto West Fertility Center; The Center for Human Reproduction, NYC Dep't of OBGYN; and Reproductive Sciences, Yale University, School of Medicine.  Submitted to E.S.H.R.E. in February 2008 as an abstract for the July 2008 annual meeting in Barcelona, Spain.
  28. The effect of dehydroepiandrosterone co-treatment on the reproductive outcomes of women with previously unsuccessful ovulation induction.  Badawy, M., Ryan, E., Claessens, E.A., et al.  Cleveland Clinic; University of New York; Toronto West Fertility Center.  Submitted in February 2008 as an abstract for the E.S.H.R.E. annual meeting in July, 2008, Barcelona, Spain.
  29. Dehydroepiandrosterone (DHEA) supplementation in women with diminished ovarian reserve reduces miscarriages.  Gleisher, N., Ryan, E., Barad, D.  Center for Human Reproduction, New York; Toronto West Fertility Center; Dep't of Epidemiology and Social Medicine and OBGYN, Albert Einstein College of Medicine, Bronx, N.Y.  Submitted to the New England Journal of Medicine for publication, March, 2008.
  30. Abstract Submission:  Cryopreservation of human oocytes; freeze/thaw survival - embryo development and implantation following ICSI.  Forman, R.A., Esfandiari, N., Claessens, E.A., Ryan, E., Gotlieb, L., Casper, R.F.; TCART, Toronto, Ont.  Submitted to A.S.R.M., 2005.
  31. Poster presentation with Drs Barad and Gleicher from the Center for Human Reproduction N.Y. and  Yale University, titled "DHEA reduces the miscarriage rate in women with diminished ovarian reserve", a multicentric study.  Presented at A.S.R.M. meeting in San Francisco, November, 2008.
  32. Poster presentation accepted for the American Fertility Society Annual Meeting in Atlanta, GA, October 17 - 21, 2009.  Dehydroepiandrosterone co-treatment in infertile women 35 years of age and older receiving controlled ovarian stimulation and timed intercourse.  Bedawy, M., Ryan, E., Shaaban, O., Claessens, E.A., Casper, R.F.
  33. "Pregnancy outcome after Metformin co-treatment in ovulation induction": Bedaiwy M, Ryan E et al, accepted for Dec.2009 publication in the Journal of the M.E.F.S.( Middle Eastern Fertility Society)