Anuradha Subramanian
University of Alabama in Huntsville, AL·Biomedical Engineering
Cartilage, the smooth tissue that cushions joints, barely heals itself. Once it is damaged, the injury tends to progress toward osteoarthritis, and current surgical repairs usually fill the gap with fibrocartilage — scar-like tissue that is mechanically weaker than the original and integrates poorly with surrounding cartilage.
- Fields
Biomedical Engineering
Engineering
Medicine & Clinical Research
- Topics
cartilage repair
osteoarthritis
low-intensity ultrasound
- Grants
- 1 known grant, through Nov 2026
What they work on
- Demonstrate whether continuous low-intensity ultrasound (cLIUS) drives mesenchymal stromal cells to form cartilage even in a pro-inflammatory environment, using RNA sequencing to profile the transcriptome and identify the pathways involved.
- Build a computational grid from magnetic resonance images coupled with a biphasic finite element model of acoustic wave propagation in the joint to determine an optimized cLIUS regimen for sheep knees.
- Validate the model's predictions with acoustic propagation measurements in sheep cadaver knee joints to confirm how ultrasound reaches cartilage through overlying tissue.
- Test whether transdermal cLIUS improves repair of critically sized cartilage defects in sheep treated by microfracture or matrix-assisted stromal cell implantation, evaluating tissue at six months by histology, biomechanics and biochemistry.
More about the research
A further obstacle is inflammation inside the injured joint, which actively blocks stem cells from becoming cartilage cells. This project asks whether a non-invasive sound-based treatment, applied alongside standard surgery, can tip the balance toward real, durable cartilage.
Why it matters
Roughly 46 million Americans live with osteoarthritis, at an estimated cost of $128 billion a year. A non-invasive ultrasound add-on that could be applied through the skin alongside existing procedures may improve repair quality after early cartilage injury and help prevent progression to osteoarthritis, which would benefit patients facing joint damage and, eventually, joint replacement.
Known grants
From NIH and NSF research grants. Labs often have other funding we can't see.
Closest labs
Li-Hsin Han
Drexel University, PA·Biomedical Engineering
Assess the translation and commercial potential of injectable, light-crosslinkable collagen microribbon scaffolds for knee cartilage repair through I-Corps experiential learning and first-hand study of the industry ecosystem.
Sanja Novak
University of Arkansas for Medical Sciences, AR·Physiology
Evaluate how blood vessels in the synovium and subchondral bone change during OA development. Test whether early microvascular damage or later synovial angiogenesis drives cartilage damage, including after mechanical-stress knee injury.
Le Yu
University of Missouri-Kansas City, MO·Biomedical Engineering
Fabricate individual scaffold zones with distinct compositions and collagen fiber orientations by controlling biomimetic mineralization, reproducing the shift from unmineralized cartilage to heavily mineralized subchondral bone.
The school
University of Alabama in Huntsville: 4 labs on PI Pages, $154M a year on research, 45 research doctorates a year.
Reach out
A start for your email. Fill in the brackets.