Dr. Darren G. Woodside (right), Dr. Ronald J. Biediger, and their team at the Texas Heart Institute received a $1.14 million grant from The National Heart, Lung, and Blood Institute to develop a novel, first-in-class drug. Photo via texasheart.org

Atherosclerosis is a prime pathway to heart attack, heart failure, and stroke. In fact, one in every five deaths recorded in 2021 was due to cardiovascular disease, much of which was caused by atherosclerosis. The thickening and hardening of arteries due to plaque buildup causes the blood vessels to narrow and block blood flow. That leads to the chronic inflammation that causes cardiac events due to atherosclerotic plaque rupture or erosion.

But what if we could lower that inflammation and cut those cardiac incidents off at the pass? Last week, The Texas Heart Institute announced that it had received a two-year, $1.14 million grant from The National Heart, Lung, and Blood Institute to develop a novel, first-in-class drug to treat the cardiovascular disease that arises from atherosclerosis.

“Given the sobering mortality statistics associated with heart disease, a novel therapy that could change disease trajectory and delay or prevent events associated with atherosclerotic cardiovascular disease would be a significant improvement to current treatment regimens,” Dr. Darren G. Woodside, vice president for research, senior investigator, and director of the Flow Cytometry and Imaging Core at The THI, says in a press release.

The most common way to prevent an adverse event is through prescribing patients a statin drug, which lowers lipids. There is ample evidence that this isn’t enough to prevent an incident and most current treatments for atherosclerosis are targeted at helping patients only after plaque rupture has already occurred.

The new technology being developed by THI is focused on a new strategy that will suppress white blood cell activation within atherosclerotic plaques before plaque rupture can take place.

Woodside’s co-principal investigator is Dr. Ronald J. Biediger, director of Medicinal Chemistry at THI. Alongside other members of the Molecular Cardiology Research Laboratories at THI, the two doctors are responsible for the technologies that could lead to drug development.

“If successful, our approach would represent a first-in-class therapeutic, as no drugs marketed today take advantage of this specific strategy of targeting integrin signaling through Syk,” says Dr. Woodside, referring to the intracellular protein important to the production of interleukin.

This is just the latest news THI has to celebrate. Earlier this month, the organization received a $32 million donation received a $32 million donation from a patient — the largest charitable donation in its history. Shortly after that news came out, the institute announced a new partnership with the University of Houston Tilman J. Fertitta Family College of Medicine that allows those UH medical students to join a clinical rotation at The Texas Heart Institute. The alliance means valuable insights and experience with both inpatient and outpatient cardiology for UH's future doctors.

Dr. Joseph Rogers, president and CEO of THI, shared on the Houston Innovators Podcast his dedication to THI's 60-year legacy and continuing to find new ways to reach heart health care patients.

"Despite all of the advances, cardiovascular disease is still one of the largest killers of Americans. It actually kills more Americans than all types of cancer combined," Rogers says on the show.


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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.