Mother Infant Research Institute (MIRI)

MIRI's Research Focus

The lifelong consequences of the intimate and unique biological relationship between mother and baby during pregnancy.

Medical research has already established that events that occur at critical stages of human development in the womb influence the later occurrence of diabetes, heart disease, stroke, osteoporosis and inflammatory disorders, such as asthma, in both childhood and adulthood.

The in-utero environment has a profound influence on the developing fetus, altering his or her gene expression and therefore affecting lifelong health.  Pregnancy is also a “stress test” for later health problems in the mother, such as cardiovascular disease and diabetes. 

Learn more about the research focus areas at MIRI >


MIRI’s Guiding Principle

Clinical and translational multi-disciplinary research to ensure healthy pregnancies, full-term deliveries, and normal birth weights will positively affect both health and health care costs for millions of people over multiple generations.

MIRI’s Major Objectives

  • To create new knowledge that translates to improved clinical care
  • To train young physicians and scientists in the conduct of research

MIRI Is Unique

  • No other multidisciplinary research institute in the US combines Pediatrics and Obstetrics.
  • MIRI’s research draws on the seamless integration of care for pregnant women, children, & adults at Tufts Medical Center and Floating Hospital for Children.

Mom and baby

Recruiting study participants now

Attention, new moms! If you’ve given birth in the past 3 months and are planning for another pregnancy in the next one to two years, you may be eligible to participate in a clinical trial.

Learn more about the study here

Spotlight on MIRI Researchers


Dr. Tomo Tarui publishes first paper on MRI analysis of Down syndrome fetal brain development

Read more about the paper


Dr. Jill Maron and Dr. Errol Norwitz Receive NICHD Committee Appointments

Read more about their appointments


MIRI’s Executive Director Jill Maron, MD is Co-PI on $8 Million NIH Award to Integrate Targeted Genomic Sequencing Into Neonatal Diagnosis and Care.

Learn more about the grant