MEND syndrome

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ORPHA:401973OMIM:300960Q87.8
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9Specialists8Treatment centers

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UniteRare data is sourced from FDA.gov, ClinicalTrials.gov, Orphanet, OMIM, and NORD.
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Overview

MEND syndrome stands for Male Epilepsy Neurodegeneration Dysmorphism syndrome. It is an extremely rare genetic condition that primarily affects males and involves a combination of seizures (epilepsy), progressive loss of brain function (neurodegeneration), and unusual facial or body features (dysmorphism). The condition is caused by changes in a gene located on the X chromosome, which is why it mainly affects boys and men. Children with MEND syndrome typically show signs early in life, including seizures that can be difficult to control, developmental delays, and intellectual disability. Over time, brain function may decline, leading to loss of previously acquired skills. Physical features may include distinctive facial characteristics, though these can vary from person to person. There is currently no cure for MEND syndrome. Treatment focuses on managing symptoms, particularly controlling seizures with anti-epileptic medications, and providing supportive therapies such as physical therapy, occupational therapy, and speech therapy. Because the condition is so rare, much of the medical understanding comes from a small number of reported cases, and research is still ongoing to better understand the disease and develop more effective treatments.

Also known as:

Key symptoms:

Seizures that are hard to controlDevelopmental delayIntellectual disabilityLoss of previously learned skillsUnusual facial featuresLow muscle toneMovement problemsDifficulty with speech and languageFeeding difficultiesPoor growthBrain abnormalities seen on imagingBehavioral challenges

Clinical phenotype terms (45)— hover any for plain English
Elevated 8-dehydrocholesterolHP:0003462Elevated 8(9)-cholestenolHP:0003465Abnormal nasal bridge morphologyHP:0000422Long neckHP:0000472
Inheritance

X-linked recessive

Carried on the X chromosome; typically affects males more than females

Age of Onset

Infantile

Begins in infancy, roughly 1 month to 2 years old

Orphanet ↗OMIM ↗NORD ↗

Treatments

No FDA-approved treatments are currently listed for MEND syndrome.

View clinical trials →

No actively recruiting trials found for MEND syndrome at this time.

New trials open frequently. Follow this disease to get notified.

Search ClinicalTrials.gov ↗Join the MEND syndrome community →

Specialists

9 foundView all specialists →
RA
Riaz Ahmad
SOLON, OH
Specialist
1 MEND syndrome publication
SE
Stephanie Efthymiou
Specialist
1 MEND syndrome publication
FR
Fatima Rahman
WICHITA, KS
Specialist
1 MEND syndrome publication
SM
Shazia Maqbool
DETROIT, MI
Specialist
1 MEND syndrome publication
MN
Muhammad Naeem
Specialist
1 MEND syndrome publication
HB
Hadiba Bibi
Specialist
1 MEND syndrome publication
SP
Stephanie A Gamble, Ph.D.
FISHERS, IN
Specialist
PI on 1 active trial
RP
Rebecca Gary, PhD
YORKVILLE, IL
Specialist
PI on 1 active trial
DP
Drenna Waldrop-Valverde, PhD
Specialist
PI on 1 active trial

Treatment Centers

8 centers
🏥 NORD

Baylor College of Medicine Rare Disease Center

Baylor College of Medicine

📍 Houston, TX

🏥 NORD

Stanford Medicine Rare Disease Center

Stanford Medicine

📍 Stanford, CA

🔬 UDN

NIH Clinical Center Undiagnosed Diseases Program

National Institutes of Health

📍 Bethesda, MD

🔬 UDN

UCLA UDN Clinical Site

UCLA Health

📍 Los Angeles, CA

🔬 UDN

Baylor College of Medicine UDN Clinical Site

Baylor College of Medicine

📍 Houston, TX

🔬 UDN

Harvard/MGH UDN Clinical Site

Massachusetts General Hospital

📍 Boston, MA

🏥 NORD

Mayo Clinic Center for Individualized Medicine

Mayo Clinic

📍 Rochester, MN

👤 Mayo Clinic Center for Individualized Medicine

🏥 NORD

UCLA Rare Disease Day Program

UCLA Health

📍 Los Angeles, CA

Travel Grants

No travel grants are currently matched to MEND syndrome.

Search all travel grants →NORD Financial Assistance ↗

Community

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Latest news about MEND syndrome

No recent news articles for MEND syndrome.

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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 type of seizures does my child have, and what is the best medication plan?,Are there any clinical trials or experimental treatments available for MEND syndrome?,What therapies (physical, occupational, speech) should we start, and how often?,What should I do if my child has a prolonged seizure at home?,How will this condition likely progress over time in my child's case?,Should other family members be tested for carrier status?,What support services and educational programs are available for my child?

Common questions about MEND syndrome

What is MEND syndrome?

MEND syndrome stands for Male Epilepsy Neurodegeneration Dysmorphism syndrome. It is an extremely rare genetic condition that primarily affects males and involves a combination of seizures (epilepsy), progressive loss of brain function (neurodegeneration), and unusual facial or body features (dysmorphism). The condition is caused by changes in a gene located on the X chromosome, which is why it mainly affects boys and men. Children with MEND syndrome typically show signs early in life, including seizures that can be difficult to control, developmental delays, and intellectual disability. Over

How is MEND syndrome inherited?

MEND syndrome follows a x-linked recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.

At what age does MEND syndrome typically begin?

Typical onset of MEND syndrome is infantile. Age of onset can vary across affected individuals.

Which specialists treat MEND syndrome?

9 specialists and care centers treating MEND syndrome are listed on UniteRare, sourced from ClinicalTrials.gov principal investigators, published research, and the NPPES NPI registry.