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Home NEWS Science News Science

Imaging technology will offer new clues to embryonic development

Bioengineer by Bioengineer
April 8, 2019
in Science
Reading Time: 3 mins read
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Better understanding could lead to new prevention and treatment for birth defects

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Credit: University of Houston

Soon after conception, an embryo’s circulatory system connects to that of its mother. Complications that occur at this critical time can result in miscarriage or birth defects with long-term chronic conditions. Unfortunately, limitations in imaging technologies prevent researchers from fully understanding the cellular-level events leading up to this crucial point.

Researchers from the University of Houston and Baylor College of Medicine are developing a new technology to allow simultaneous imaging of both embryonic structural development and the molecular underpinnings that occur in the developing circulatory system.

David Mayerich, assistant professor of electrical and computer engineering at UH, is leading the $3.7 million project funded by the National Heart, Lung and Blood Institute, with Kirill Larin, professor of biomedical engineering at UH; Mary Dickinson, professor of molecular physiology and biophysics at Baylor; and Joshua Wythe, assistant professor of molecular physiology at Baylor.

“When you look at an embryo, things happen at two scales, structural and molecular,” Mayerich said. It just hasn’t been possible to see both changes at the same time because the imaging systems used to capture them aren’t compatible.

Current studies require multiple imaging methods: optical coherence tomography (OCT), a non-invasive imaging method typically used to study the eye, to collect high-resolution images of structural growth and changes, and three-dimensional fluorescence imaging such as light sheet microscopy to observe cellular changes.

Even a short time lag between images taken with OCT and microscopy can make it impossible to synchronize the structural and chemical changes, said Mayerich, whose work involves the application of data science to microscopy, allowing for high resolution imaging at massive scales. This new system will merge both imaging methods and align them in 3D, he said, using specially designed software to synchronize the data collection.

Larin, an expert in using OCT to study developmental biology, said the technical challenges include the fact that the two imaging systems typically use different wavelengths of light. Using one microscopic lens for both OCT and microscopy will require overlapping optical paths.

Mayerich and his lab will also determine how to interpret the resulting aligned images, identifying and measuring components including blood vessels, blood flow and individual cells as they change over time.

Ultimately, they hope to identify biomarkers correlated with certain birth defects, improving early detection.

“It’s technically very difficult,” Larin said. “But it will help us to grasp a fundamental understanding of the process,” potentially leading to treatments that could help avoid miscarriage, fetal death and birth defects.

###

About the University of Houston

The University of Houston is a Carnegie-designated Tier One public research university recognized with a Phi Beta Kappa chapter for excellence in undergraduate education. UH serves the globally competitive Houston and Gulf Coast Region by providing world-class faculty, experiential learning and strategic industry partnerships. Located in the nation’s fourth-largest city and one of the most ethnically and culturally diverse regions in the country, UH is a federally designated Hispanic- and Asian-American-Serving institution with enrollment of more than 46,000 students.

Media Contact
Jeannie Kever
[email protected]

Original Source

http://www.uh.edu/news-events/stories/2019/april-2019/04082019mayerich-embryonic-imaging.php

Tags: Biomedical/Environmental/Chemical EngineeringDiagnosticsMedicine/HealthMultimedia/Networking/Interface DesignSoftware EngineeringTechnology/Engineering/Computer Science
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