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Martha Susiarjo Featured in NIEHS Success Stories

Friday, June 29, 2018

Recently featured as an NIEHS Success Story, NIEHS grantee Martha Susiarjo, Ph.D., studies how exposure to endocrine disrupting chemicals (EDCs) may negatively affect the health of a pregnant mother and her baby. EDCs are chemicals that can interfere with how hormones in the body communicate. Bisphenol A (BPA), flame retardants, and other contaminants that may act as EDCs are found in everyday consumer products, such as plastic bottles, metal food cans, and household furniture.

As a graduate student at Case Western Reserve University, Susiarjo performed genetics research to determine the effects of BPA on oocyte development in mice. This research was conducted under the mentorship of Patricia Hunt, Ph.D., a geneticist who discovered chromosomal abnormalities in the offspring of pregnant mice inadvertently exposed to BPA from damaged caging materials.

After successful completion of her doctoral research in 2007, Susiarjo went on to receive postdoctoral training under the direction of Marisa Bartolomei, Ph.D., an epigenetics researcher at the University of Pennsylvania. While there, Susiarjo received an NIEHS postdoctoral training grant to study the impact of BPA exposure on the mouse epigenome.

“These experiences helped me get where I am today,” Susiarjo said. “I was very fortunate to have mentors who saw great potential in me and pushed me to do more.”

Susiarjo now leads research in her own laboratory at the University of Rochester School of Medicine and Dentistry. Her lab uses mice as a model organism to explore the molecular mechanisms that regulate the effects of EDCs on maternal health and fetal development during pregnancy. Her research shows that epigenetics, or heritable changes that affect gene expression without changing the genetic sequence in DNA, can play a large role in these effects.

Read More: Martha Susiarjo Featured in NIEHS Success Stories

NIEHS eFactor Features Susiarjo's Lecture

Tuesday, April 3, 2018

susiarjo

Imprinted genes and how their interactions with environmental chemicals can affect maternal and fetal health was the focus of a talk by Martha Susiarjo, Ph.D., from the University of Rochester. She spoke March 21 as part of the NIEHS Keystone Science Lecture Seminar Series.

Imprinted genes are those in which the copy from one parent is silenced through epigenetic modifications, which are changes to DNA that affect the function of genes but not the underlying DNA sequence.

“Although imprinted genes represent a small portion of the mammalian genome, they play a critical role during early development,” said Susiarjo. “We are working to understand how epigenetic markers mediate these effects and how gene-environment interactions can reprogram development of the fetus.”

Fred Tyson, Ph.D., a program director in the NIEHS Genes Environment and Health Branch, hosted the talk. “It was exciting to learn more about Susiarjo’s innovative work as an early-stage investigator,” said Tyson. “Her research is revealing new information about how epigenetic regulation of genes contributes to early development, and how environmental chemicals may alter this process.”

Read More: NIEHS eFactor Features Susiarjo's Lecture