Epigenetic Safety of Assisted Reproductive Technology

Epigenetic Safety of Various Protocols in Assisted Reproductive Technology

The primary purpose of the study is to investigate the relationship between different protocols of assisted reproductive technology and the epigenetic safety of the offspring. Different interventions of assisted reproductive technology include controlled ovarian hyperstimulation (COH), in vitro embryo culture, in vitro fertilization(IVF), intracytoplasmic sperm injection(ICSI), frozen-thawed embryo transfer(FET), preimplantation genetic testing(PGT). The investigators are also interested in the relationship between pregnancy outcomes in ART or natural conception and environmental, nutritional and lifestyle factors.

Inclusion Criteria:

1. Couples undergoing treatment for infertility or getting pregnant naturally and wanting to deliver their babies in Women's Hospital School of Medicine Zhejiang University, The International Peace Maternity & Child Health Hospital, and Changhai Hospital of Shanghai.
2. Men 22-55 years old
3. Women 20 - 45 years old

Exclusion Criteria:

1. Any individual or couple who is outside of age range .
2. Any couple who don't plan to complete their pregnancy check-up or deliver their babies in Women's Hospital School of Medicine Zhejiang University, The International Peace Maternity & Child Health Hospital, or Changhai Hospital of Shanghai.