Embryology Staff

Embryology StaffLeft to right: Murat Basar PhD, Kathi Greco, Jonathan Lo M.Sc. (IVF Laboratory Manager) , Sarah Grant
Left to right: Murat Basar PhD, Kathi Greco, Jonathan Lo M.Sc. (IVF Laboratory Manager) , Sarah Grant
The Yale Fertility Center operates one of the most renowned IVF laboratories that incorporates state-of-the-art technology, equipment and protocols. Dr. Dawn Kelk, PhD, HCLD leads an experienced embryologist team that perform all IVF techniques including Intracytoplasmic Sperm Injection (ICSI), Assisted Zona Hatching (AZH), embryo biopsy (blastomere and blastocyst) for Preimplantation Genetic Diagnosis and Screening (PGD / PGS), and cryopreservation by vitrification. Our accomplished embryology team has pioneered innovations that have led to success in extended embryo culture, trophectoderm biopsy and vitrification of blastocysts and oocytes.

Dawn Kelk

Lab Director

Associate Research Scientist in Obstetrics, Gynecology, and Reproductive Sciences

Biography

Dawn A. Kelk, PhD, HCLD is Director of the IVF Laboratory at Yale Fertility Center and Associate Research Scientist at the Yale University School of Medicine. Dr. Kelk’s clinical expertise includes trophectoderm biopsy and vitrification of blastocysts and oocytes. Her work has demonstrated higher pregnancy rates with frozen (vitrified) blastocysts as compared to fresh embryo transfer. At the American Society of Reproductive Medicine Meeting in 2013, Dr Kelk was awarded the Society...

Dawn A. Kelk, PhD, HCLD is Director of the IVF Laboratory at Yale Fertility Center and Associate Research Scientist at the Yale University School of Medicine. Dr. Kelk’s clinical expertise includes trophectoderm biopsy and vitrification of blastocysts and oocytes. Her work has demonstrated higher pregnancy rates with frozen (vitrified) blastocysts as compared to fresh embryo transfer. At the American Society of Reproductive Medicine Meeting in 2013, Dr Kelk was awarded the Society for Reproductive Biologists and Technologists Clinical Science Award for her abstract “Day 2 Cell Number Correlates with Blastocyst Aneuploidy Rates Following Comprehensive 24-Chromosome Screening (CCS)”.

Dr. Kelk’s primary clinical interest is in optimizing laboratory conditions, vitrification techniques and 24-chromosome testing for aneuploidy to increase confidence and utilization of elective single embryo transfer (eSET) leading to healthier IVF birth outcomes. Her research interests include oocyte and ovarian tissue freezing, fertility preservation, nuclear and cytoplasmic involvement in preimplantation development and fresh versus frozen IVF birth outcomes.

Dr. Kelk obtained a BSc in Molecular Biology and Genetics followed by MSc and PhD in Biomedical Sciences at the University of Guelph, Canada. She is board certified as a High Complexity Laboratory Director. Dr. Kelk is an active member of the American Society of Reproductive Medicine (ASRM), Society of Reproductive Biologists and Technologists (SRBT) and American Board of Bioanalysts (ABB).

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Jonathan Lo

Lab Manager

Biography

Jonathan Lo, MSc has been IVF Laboratory Manager at Yale Fertility Center since 2014. He obtained his Bachelor of Science degree in Cell Biology and Genetics from the University of British Colombia, Canada in 2001 and his Masters of Science in Clinical Embryology from the University of Leeds, UK in 2014. Jonathan honed his micromanipulation skills for 2 years working in mouse transgenic research at the University of British Colombia before moving to clinical embryology. His skills and...

Jonathan Lo, MSc has been IVF Laboratory Manager at Yale Fertility Center since 2014. He obtained his Bachelor of Science degree in Cell Biology and Genetics from the University of British Colombia, Canada in 2001 and his Masters of Science in Clinical Embryology from the University of Leeds, UK in 2014. Jonathan honed his micromanipulation skills for 2 years working in mouse transgenic research at the University of British Colombia before moving to clinical embryology. His skills and thoughtful, meticulous approach made for a smooth transition to the human IVF laboratory setting. Jonathan has worked with Dr. Dawn Kelk, PhD in clinical IVF laboratories for more than 7 years. He has contributed to multiple scientific abstracts examining 24-chromosome screening of blastocysts and vitrification. Jonathan’s interests include trophectoderm biopsy as well as oocyte and embryo vitrification.

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Murat Basar

Associate Research Scientist in Obstetrics, Gynecology, and Reproductive Sciences

Biography

Murat Basar, PhD is an embryologist at Yale Fertility Center and Associate Research Scientist at the Yale University School of Medicine. He obtained his MSc and PhD in Histology and Embryology from the Istanbul University, Cerrahpasa, Turkey with an integrated PhD program at Yale University, USA. Dr. Basar has been involved in the field of clinical embryology since 2009, working initially as an Embryologist at Yale Fertility Center before returning to practice embryology in Turkey....

Murat Basar, PhD is an embryologist at Yale Fertility Center and Associate Research Scientist at the Yale University School of Medicine. He obtained his MSc and PhD in Histology and Embryology from the Istanbul University, Cerrahpasa, Turkey with an integrated PhD program at Yale University, USA. Dr. Basar has been involved in the field of clinical embryology since 2009, working initially as an Embryologist at Yale Fertility Center before returning to practice embryology in Turkey. Fortunately, he chose to return to Yale Fertility Center and the Yale University School of Medicine in 2014.

During his doctoral studies, Dr. Basar investigated cytokine-mediated regulation of inflammation in endometrium and decidua during the menstrual cycle and pregnancy. He has published multiple original research articles and reviews in leading scientific journals in the field of implantation, pre-implantation embryo development and pregnancy complications. He has also presented dozens of abstracts on topics of implantation and pre-implantation embryo development at national and international medical conferences. Dr. Basar’s current research is focused on the investigation of pre-implantation embryo stress and oogenesis. He is currently on the Editorial Board of Obstetrics & Gynecology International.

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Sarah Grant

Biography

Sarah Grant has been an embryologist at Yale Fertility Center since 2010. She obtained her BA in Biology from Western Connecticut State University in 2005. Sarah has been working in fertility laboratories for the past 10 years. She initially gained experience in both Endocrinology and Andrology before moving to the Embryology laboratory. Sarah is highly skilled at all aspects of IVF and brings a well-rounded experience to the Yale IVF Laboratory.


Kathleen Greco

Biography

Kathleen Greco MLT, ASCP started her career at Yale Univeristy of Medicine in 1995 as a Research Scientist in the Department of OB/GYN and Reproductive Sciences. Working closely with the IVF Laboratory staff she joined the team in 1996 and was trained as an Embryologist. Highly skilled, Kathleen brings years of experience to the department as a senior member of the Yale IVF Laboratory.