Overview
HNRNPDL-related limb-girdle muscular dystrophy D3 (also called LGMD D3 or LGMD1G) is a rare inherited muscle disease caused by changes in the HNRNPDL gene. This gene provides instructions for making a protein that helps control how genetic information is processed inside cells. When this protein does not work correctly, muscle fibers gradually weaken and break down over time. This condition mainly affects the muscles closest to the center of the body — the hips, thighs, and shoulders — which is why it is called 'limb-girdle' muscular dystrophy. People with LGMD D3 typically notice difficulty climbing stairs, rising from a chair, or lifting their arms above their head. Muscle weakness tends to get slowly worse over the years. Some people also develop problems with swallowing or breathing as the disease progresses, and a small number develop heart muscle involvement. There is currently no cure for LGMD D3. Treatment focuses on managing symptoms, maintaining strength and mobility through physical therapy, and monitoring for complications such as breathing or heart problems. A team of specialists works together to help people live as comfortably and independently as possible. Research into this condition is ongoing, and gene-based therapies are an area of active scientific interest.
Also known as:
Key symptoms:
Weakness in the hip and thigh musclesWeakness in the shoulder and upper arm musclesDifficulty climbing stairs or getting up from a chairTrouble lifting arms above the headWaddling or unsteady walking patternMuscle cramps or stiffnessDifficulty swallowing (in some people)Shortness of breath or reduced breathing capacity (in some people)Fatigue with everyday activitiesGradual loss of muscle bulk over timeHeart muscle weakness (in some people)
Autosomal dominant
Passed on from just one parent; each child has about a 50% chance of inheriting it
Adult
Begins in adulthood (age 18 or older)
Treatments
No FDA-approved treatments are currently listed for HNRNPDL-related limb-girdle muscular dystrophy D3.
View clinical trials →Clinical Trials
View all trials with filters →No actively recruiting trials found for HNRNPDL-related limb-girdle muscular dystrophy D3 at this time.
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Rare Disease Specialist
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 HNRNPDL-related limb-girdle muscular dystrophy D3.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
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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 change was found in my HNRNPDL gene, and what does it mean for my prognosis?,How quickly is this condition likely to progress in my case?,Should my family members be tested for the same gene change?,Do I need heart or breathing tests, and how often should these be repeated?,What physical therapy program is best suited for my current level of strength?,Are there any clinical trials I might be eligible for?,What warning signs should prompt me to seek emergency care?
Common questions about HNRNPDL-related limb-girdle muscular dystrophy D3
What is HNRNPDL-related limb-girdle muscular dystrophy D3?
HNRNPDL-related limb-girdle muscular dystrophy D3 (also called LGMD D3 or LGMD1G) is a rare inherited muscle disease caused by changes in the HNRNPDL gene. This gene provides instructions for making a protein that helps control how genetic information is processed inside cells. When this protein does not work correctly, muscle fibers gradually weaken and break down over time. This condition mainly affects the muscles closest to the center of the body — the hips, thighs, and shoulders — which is why it is called 'limb-girdle' muscular dystrophy. People with LGMD D3 typically notice difficulty
How is HNRNPDL-related limb-girdle muscular dystrophy D3 inherited?
HNRNPDL-related limb-girdle muscular dystrophy D3 follows a autosomal dominant inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does HNRNPDL-related limb-girdle muscular dystrophy D3 typically begin?
Typical onset of HNRNPDL-related limb-girdle muscular dystrophy D3 is adult. Age of onset can vary across affected individuals.
Which specialists treat HNRNPDL-related limb-girdle muscular dystrophy D3?
1 specialists and care centers treating HNRNPDL-related limb-girdle muscular dystrophy D3 are listed on UniteRare, sourced from ClinicalTrials.gov principal investigators, published research, and the NPPES NPI registry.