Zsolt Peter Nagy
The Modern Laboratory · People
The Modern Laboratory
Zsolt Peter Nagy
A Hungarian doctor and embryologist who helped turn egg vitrification into a bank that families could draw on.
Budapest to Brussels. Zsolt Peter Nagy, known to colleagues as Peter, was born in Hungary. He graduated summa cum laude from Semmelweis Medical University in Budapest in 1986. In 1989 he joined the Department of Reproductive Medicine at the Free University of Brussels as a medical scientist.
The ICSI years. He arrived as the Brussels team led by André Van Steirteghem and Paul Devroey was bringing intracytoplasmic sperm injection into clinical use. He was a co-author on their 1993 reports of high fertilisation and implantation rates. In 1994 and 1995 he led studies on the timing of fertilisation after injection, on how the egg membrane is broken, and on using sperm taken from the epididymis or testis. One 1995 paper showed that the result of ICSI did not depend on the three basic sperm measures. He earned his PhD from the same university in 1998.
Rome, São Paulo, Atlanta. After posts as scientific director in São Paulo and in Rome, he joined Reproductive Biology Associates in Atlanta in August 2002 as Scientific and Laboratory Director.
An egg bank. In Atlanta his team used vitrification to freeze eggs from donors, so that the eggs could wait until a family needed them. In 2009 they reported that 15 of 20 recipients using vitrified donor eggs achieved ongoing pregnancies. Later work with Emory University described 989 recipients and 856 embryo transfers that ended in a live birth.
A wide reach. He has written or co-written more than 200 peer-reviewed papers and served as an associate editor of Human Reproduction and Reproductive BioMedicine Online. The same vitrification approach has also given women facing cancer treatment a way to keep their eggs.
Also see: André Van Steirteghem, Paul Devroey, Hubert Joris
About the sources
- Zsolt Peter Nagy, MD, PhD. Board of directors biography, Alliance for Fertility Preservation, accessed October 2026.
- Dr Zsolt Nagy. Physician biography, Reproductive Biology Associates (rbafertility.com), accessed October 2026.
- Hipp HS, Gaskins AJ, Nagy ZP, Capelouto SM, Shapiro DB, Spencer JB. Effect of oocyte donor stimulation on recipient outcomes: data from a US national donor oocyte bank. Human Reproduction 2020;35(4):847–858.
- Nagy ZP, Chang CC, Shapiro DB, et al. Clinical evaluation of the efficiency of an oocyte donation program using egg cryo-banking. Fertility and Sterility 2009;92(2):520–526. PMID 18692830.
- Nagy ZP, Liu J, Joris H, et al. The result of intracytoplasmic sperm injection is not related to any of the three basic sperm parameters. Human Reproduction 1995;10(5):1123–1129. PMID 7657751.
- Nagy Z, Liu J, Cecile J, Silber S, Devroey P, Van Steirteghem A. Using ejaculated, fresh, and frozen-thawed epididymal and testicular spermatozoa gives rise to comparable results after intracytoplasmic sperm injection. Fertility and Sterility 1995;63(4):808–815. PMID 7890067.
- Nagy ZP, Liu J, Joris H, et al. The influence of the site of sperm deposition and mode of oolemma breakage at intracytoplasmic sperm injection on fertilization and embryo development rates. Human Reproduction 1995;10(12):3171–3177. PMID 8822437.
- Nagy ZP, Liu J, Joris H, Devroey P, Van Steirteghem A. Time-course of oocyte activation, pronucleus formation and cleavage in human oocytes fertilized by intracytoplasmic sperm injection. Human Reproduction 1994;9(9):1743–1748. PMID 7836530.
- Van Steirteghem AC, Nagy Z, Joris H, et al. High fertilization and implantation rates after intracytoplasmic sperm injection. Human Reproduction 1993;8(7):1061–1066. PMID 8408487.
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Compiled with AI-assisted research and checked against the original sources. Not yet peer-reviewed. Corrections are warmly welcomed.