Researchers at Baylor College of Medicine’s Human Genome Sequencing Center have trained an AI assistant to explain genetic test results to patients. Photo via Getty Images

Artificial intelligence in the health care setting has a lot of potential, and one Houston institution is looking into one particular use.

Researchers at Baylor College of Medicine’s Human Genome Sequencing Center have trained an AI assistant to explain genetic test results to patients. According to findings published in the Journal of the American Medical Informatics Association (JAMIA), the team has developed generative AI to understand and interpret genetic tests. They have also tested its accuracy against Open AI’s ChatGPT 3.5.

“We created a chatbot that can provide guidance on general pharmacogenomic testing, dosage implications, and the side effects of therapeutics, and address patient concerns,” explains first author Mullai Murugan in a press release. Murugan is director of software engineering and programming at the Human Genome Sequencing Center. “We see this tool as a superpowered assistant that can increase accessibility and help both physicians and patients answer questions about genetic test results.”

The initial chatbot training specifically targeted pharmacogenomic testing for statins, meaning a patient’s potential response to cholesterol-lowering drugs, as dictated by genetics.

Murugan explains why they decided to create their own chatbot in the key publication on statin pharmacogenomics was published in May 2022, four months after the training cutoff date for ChatGPT 3.5 in January 2022. Alternatively, her team’s technology uses Retrieval Augmented Generation (RAG) and was trained on the most recent guidelines.

How did the two AI assistants compare? Four experts on cardiology and pharmacogenomics rated both chatbots based on accuracy, relevancy, risk management, and language clarity, among other factors. Though the AI scored similarly on language clarity, Baylor’s chatbot scored 85 percent in accuracy and 81 percent in relevancy compared to ChatGPT’s 58 percent in accuracy and 62 percent in relevancy when asked questions from healthcare providers.

“We are working to fine-tune the chatbot to better respond to certain questions, and we want to get feedback from real patients,” Murugan says. “Based on this study, it is very clear that there is a lot of potential here.” Nonetheless, Murugan emphasized that there is much work still to be done before the program is ready for clinical applications. That includes training the chatbot to explain results in the language used by genetic counselors. Funds from the NIH’s All of Us Research Program helped to make the research possible.

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

Houston researchers develop breakthrough device that could bypass spinal injuries

breakthrough research

Scientists at Houston Methodist have announced a significant leap forward for spinal cord injury recovery.

The researchers have developed a device that essentially bypasses spinal injuries, allowing signals from previously “lost” functions to reach the brain, a new study published in Nature Communications shows.

“Most current technologies try to improve whatever function remains after a spinal cord injury,” Dr. Damiano Barone, assistant professor of neurosurgery in the Department of Neurosurgery at Houston Methodist and co-lead on the study, said in a news release. “Our goal is different. Rather than fixing the injury itself, we want to bypass it completely and create an alternative route for signals to travel.”

The study involved a single ultrathin circumferential electrode array made to conform around the spinal cord without penetrating neural tissue, which was implanted into rodent and pig models with spinal injuries. The electrode array was able to interpret motor, sensory and autonomic signals around the injury. Think of it as a set of detours that restore road access to isolated towns after a disaster destroys the highway instead of just rebuilding the highway.

Over the course of three days, the arrays detected signals of intended movement from low-frequency spinal oscillations with more than 94 percent accuracy. This worked across species and was replicated in feasibility studies on human cadavers.

This research could serve as a new foundation for neuroprosthetic implants that could restore connectivity to the 2.5 million people worldwide suffering from spinal injuries that result in loss of ability. Future development could result in everything from restored organ function to mobility, according to Houston Methodist.

George Malliaras, the Prince Professor of Technology in the Department of Engineering at the University of Cambridge, who co-led the study, sees it as a fundamental restructuring of the science of spinal trauma.

“This could represent a paradigm change in how we think about spinal cord injuries,” Malliaras said. “Instead of starting from the idea that what is lost is gone forever, this approach asks whether we can restore function by carrying the signal around the injury.”

Further work involving laboratory models will need to be completed before launching human trials.

Grants from the National Institutes of Health, Houston Methodist Katz Investigator Award, Helaers Research Award and the Engineering and Physical Sciences Research Council helped support the study. Other collaborators on the study include Salim Hadwe, Ruben Serrano, George Psaltakis, Margaux Forner, Chaeyeon Lee, Sydney Swedick, Moleca Ghnnam, Tawfique Hasan and Alejandro Carnicer-Lombarte from the University of Cambridge; and Anton Banta and Xueer Zhang from Houston Methodist.

Abbott assembles expert team to help lure U.S. Space Academy to Texas

space race

State Rep. Greg Bonnen of Friendswood has been tapped to lead a new team that will promote Texas as the future home of the U.S. Space Academy.

Bonnen, a neurosurgeon, chairs Houston Physicians’ Hospital and the powerful Texas House Appropriations Committee. His House district is close to NASA’s Johnson Space Center.

Gov. Greg Abbott appointed the seven-member team. Last month, President Trump signed an executive order establishing the Presidential Commission on the U.S. Space Academy. Commission members, who held their first meeting this month, will recommend a permanent location for the academy.

Texas officials are pushing a site near Johnson Space Center to host the academy. Alabama, Colorado and Florida are among Texas’ competitors.

In a joint statement, U.S. Sen. Ted Cruz and U.S. Rep. Brian Babin, both of Texas, issued a statement backing the state’s bid for the academy. Cruz lives in Houston. Babbin lives in Woodville, about 55 miles south of Beaumont.

“America’s space program is built across the country, but Texas is where the pieces come together,” the lawmakers said. “We are ready to lead the next generation of space pioneers and look forward to showing why Texas is the right home for the U.S. Space Academy.”

The academy’s curriculum will include technical education, leadership development and public service components. Graduates will be set up for careers in the U.S. military, civil service, and aerospace sectors.

The Abbott-appointed team will work with the Texas Space Commission to prepare the state’s proposal for the academy.

In addition to Bonnen, team members with ties to Houston include:

  • Robert Ambrose, who grew up in Houston. He worked at Johnson Space Center before becoming associate director of the Texas A&M Space Institute.
  • Former NASA astronaut Nancy Curry-Gregg, director of the Texas A&M Space Institute. She earned a doctoral degree from the University of Houston and previously worked at Johnson Space Center.
  • Former NASA astronaut Jack Fischer, senior vice president of Houston-based Intuitive Machines. The company builds spacecraft, delivers payloads to the moon and launches satellites.

“Texas is the home of America’s human spaceflight program,” Abbott said in a release. “No state can match what Texas brings to this mission.”

“NASA’s Johnson Space Center, world-class universities, a premier commercial space industry, major military installations, and an unmatched aerospace workforce give Texas every asset the United States Space Academy requires,” the governor added.