Overview
TRPV4-related bone disorder is a group of rare genetic conditions caused by changes (mutations) in the TRPV4 gene. This gene provides instructions for making a protein that acts as a channel in cell membranes, helping regulate how calcium and other signals move in and out of cells. When this gene does not work properly, it can affect how bones and cartilage grow and develop, leading to a range of skeletal problems. The TRPV4-related bone disorders include a spectrum of conditions ranging from mild to severe. On the milder end, some people may have slightly short stature with joint problems. On the more severe end, conditions like metatropic dysplasia can cause significant short stature, abnormal curvature of the spine (scoliosis or kyphosis), and changes in the shape of the chest and limbs. Other conditions in this spectrum include spondylometaphyseal dysplasia Kozlowski type, brachyolmia, and parastremmatic dwarfism. Symptoms can vary widely even within the same family. There is currently no cure for TRPV4-related bone disorders. Treatment focuses on managing symptoms and may include orthopedic surgery, physical therapy, pain management, and monitoring for complications such as breathing difficulties caused by a small chest or spinal cord compression. Regular follow-up with a team of specialists is important to address problems as they arise and maintain the best possible quality of life.
Key symptoms:
Short statureAbnormal curvature of the spine (scoliosis or kyphosis)Short limbs compared to the trunkJoint stiffness or limited range of motionEnlarged or swollen-looking jointsFlat vertebrae (platyspondyly) seen on X-rayAbnormal shape of the long bonesWaddling gait or difficulty walkingSmall or narrow chestBreathing difficultiesChronic bone or joint painProgressive skeletal deformities over timeKnock knees or bowed legs
Autosomal dominant
Passed on from just one parent; each child has about a 50% chance of inheriting it
Variable
Can begin at different ages, from infancy through adulthood
Treatments
No FDA-approved treatments are currently listed for TRPV4-related bone disorder.
View clinical trials →Clinical Trials
View all trials with filters →No actively recruiting trials found for TRPV4-related bone disorder at this time.
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Specialists
View all specialists →No specialists are currently listed for TRPV4-related bone disorder.
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to TRPV4-related bone disorder.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
Rare disease caregiving can be isolating. Connect with counseling and peer support.
Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.What specific type of TRPV4-related bone disorder does my child or I have, and what does that mean for the future?,How often should we have X-rays or other imaging to monitor bone and spine changes?,Are there any activities or sports we should avoid to protect the bones and joints?,What signs of spinal cord compression should I watch for, and when should I seek emergency care?,What physical therapy or rehabilitation programs would be most helpful?,Should other family members be tested for the TRPV4 gene change?,Are there any clinical trials or new research studies we could participate in?
Common questions about TRPV4-related bone disorder
What is TRPV4-related bone disorder?
TRPV4-related bone disorder is a group of rare genetic conditions caused by changes (mutations) in the TRPV4 gene. This gene provides instructions for making a protein that acts as a channel in cell membranes, helping regulate how calcium and other signals move in and out of cells. When this gene does not work properly, it can affect how bones and cartilage grow and develop, leading to a range of skeletal problems. The TRPV4-related bone disorders include a spectrum of conditions ranging from mild to severe. On the milder end, some people may have slightly short stature with joint problems. O
How is TRPV4-related bone disorder inherited?
TRPV4-related bone disorder follows a autosomal dominant inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.