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Prof. Peter N. Schlegel

Weill Medical College of Cornell University, USA


Email: pnschleg@med.cornell.edu


1983 M.D., University of Massachusetts Medical School

1979 A.B., Hamilton College, Chemistry & Mathematics

Publications (selected)

  1. Stahl PJ, Mielnik A, Schlegel PN, Paduch DA. Heat shock factor Y chromosome (HSFY) mRNA level predicts the presence of retrievable testicular sperm in men with nonobstructive azoospermia. Fertil Steril. 2011 Aug; 96 (2): 303-8. Epub 2011 Jun 15. PubMed PMID: 21676392.
  2. Stahl P, Schlegel PN. Standardization and documentation of varicocele evaluation. Curr Opin Urol. 2011 Nov; 21 (6): 500-5. Review. PubMed PMID: 21926627.
  3. Ramasamy R, Sterling J, Fisher ES, Li PS, Jain M, Robinson, BD, Shevchuck M, Huland D, Xu C, Mukherjee S, Schlegel PN. Identification of spermatogenesis with multiphoton microscopy: an evaluation in a rodent model. J Urol. 2011 Dec; 186 (6): 2487-92. Epub 2011 Oct 21. PubMed PMID: 22019169.
  4. Stahl PJ, Stember DS, Schlegel PN. Interpretation of the semen analysis and initial male factor management. Clin Obstet Gynecol. 2011 December; 54 (4): 656-665.
  5. Schlegel PN, Goldstein M. Alternate indications for varicocele repair: non-obstructive azoospermia, pain, androgen deficiency and progressive testicular dysfunction. Fertil Steril. 2011 Dec; 96 (6): 1288-
  6. 93. Review. PubMed PMID: 22130099.
  7. Ramasamy R, Sterling J, Li PS, Robinson BD, Parekattil S, Chen J, Felsen D, Mukherjee S, Goldstein M, Schlegel PN. Multiphoton imaging and laser ablation of rodent spermatic cord nerves: potential treatment for patients with chronic orchialgia. J Urol. 2012 Feb; 187 (2); 733-8.
  8. Ramasamy R, Stahl PJ, Schlegel PN. Medical therapy for spermatogenic failure. Asian J Urol. 2012 Jan; 14 (1); 57-60.
  9. Reifsnyder JE, Ramasamy R, Husseini J, Schlegel PN. Role of optimizing testosterone prior to microdissection testicular sperm extraction in men with nonobstructive azoospermia. J Urol. 2012 Aug; 188 (2): 532-7.
  10. Ramasay R, Sterling J, Manzoor M, Salamoon B, Jain M, Fisher E, Li PS, Schlegel PN, et al. Full field optical coherence tomography can identify spermatogenesis in a rodent sertoli-cell only model. J Pathol Inform. 2012; 3: 4.
  11. Mehta A, Malek-Jones M, Bolyakov A, Mielnik A, Schlegel PN, Paduch, DA. Methylation-specific PCR allows for fast diagnosis of X chromosome disomy and reveals skewed inactivation of the X chromosome in men with Klinefelter syndrome. J Androl. 202 Sep-Oct; 33 (5): 955-62. Epub 2012 Mar 22.
  12. O’Bryan MK, Grealy, A, Stahl PJ, Schlegel PN, McLachlan RI, Jamsai D. Genetic variants in the ETV5 gene in fertile and infertile men with non-obstructive azoospermia associated with Sertoli cell only syndrome. Fertil Steril. 2012 Oct; 98 (4): 827-35.
  13. Stahl PJ & Schlegel PN. Genetic evaluation of the azoospermic or severely oligozoospermic male. Curr Opin Obstet Gynecol. 2012 Aug; 24 (4): 221-228.
  14. Najari B, Ramasamy R, Sterling J, Aggarwal A, Sheth S, Li PS, Dubin JM, Goldenberg S, Jain M, Robinson BD, Shevchuk M, Scherr DS, Goldstein M, Mukherjee S, Schlegel PN. Pilot study of the correlation of multiphoton tomography of ex vivo human testis with histology. J Urol. 2012 Aug; 188 (2): 538-43. Epub 2012 Jun 15.
  15. Stahl PJ, Mielnik AN, Barbieri CE, Schlegel PN, Paduch DA. Deletion or underexpression of the Y-chromosome genes CDY2 and HSFY is associated with maturation arrest in American men with nonobstructive azoospermia. Asian J Androl. 2012 Sep; 14 (5): 676-82. Epub 2012 Jul 23.
  16. Schlegel PN. Re: Antioxidants for male subfertility. Euro Urol. 2012; 62: 562-7.
  17. Burnett AL, Perreault Darney S, Sandlow J, Bartke A, Orgebin-Crist MC, Desjardins C, Lewis RW, Tindall D, Hamilton DW, Pryor JL, Schlegel PN, Hardy MP. Parting Messages from Current and Former Editors of the Journal of Andrology. J Androl. 2012 Aug 9.
  18. Ramasamy R, Fisher ES, Schegel PN. Testosterone replacement and prostate cancer. Indian J Urol. 2012 Apr; 28 (2): 123-8.
  19. Schlegel PN. Role of FSH to optimize adolescent testicular growth. Fertil Steril. 2012 Oct; 98 (4): 818.
  20. Schlegel PN. Contemporary issues in varicocele management. Curr Opin Urol. 2012 Nov; 22 (6); 487-488.
  21. Kim DY, Silverman RH, Chan RV, Shanifar AA, Rondeau M, Lloyd H, Schlegel P, Coleman DJ. Measurement of choroidal perfusion and thickness following systemic sildenafil (Viagra®). Acta Ophthalmol. 2012 Sep13.
  22. Schlegel PN. Chromosomal analysis is still indicated for men with severely impaired sperm production. Fertil Steril. 2012 Dec; 98 (6): 1418.
  23. Schlegel PN. Aromatase inhibitors for male infertility. Fertil Steril. 2012 Dec; 98 (6): 1359-62.
  24. Ramasamy R, Bryson C, Reifsnyder JE, Neri Q, Palermo GD, Schlegel PN. Overweight men with nonobstructive azoospermia have worse pregnancy outcomes after microdissection testicular sperm extraction. Fertil Steril. 2012 Oct 31.
  25. Ramasamy R, Reifsnyder JE, Husseini J, Eid PA, Bryson C, Schlegel PN. Localization of sperm during microdissection testicular sperm extraction for men with nonobstructive azoospermia. J Urol. 2013 Feb; 189 (2): 643-6. doi: 10.1016/j.juro.2012.09.031. Epub 2012 Dec 20.

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