Alagille Syndrome (OMIM #118450) is the most commonly encountered rare cholestatic liver disease seen by pediatric hepatologists. It can affect multiple organ systems of the body including the liver, heart, skeleton, eyes and kidneys. The specific symptoms and severity of Alagille syndrome can vary greatly from one person to another, even within the same family. Some individuals may have mild forms of the disorder while others may have more serious forms.
Most people with Alagille syndrome have mutations in one copy of the JAG1 gene. A small percentage (less than 1 percent) of patients have mutations of the NOTCH2 gene. These mutations are inherited as autosomal dominant traits, however in about half of cases the mutation occurs as a new change (“de novo”) in the individual and was not inherited from a parent. The current estimated incidence of ALGS is between 1:30,000 and 1:70,000 with no difference in gender.
The video is on top, in English and Spanish, is a wonderful animated description of Alagille Syndrome. Sponsored by Travere Therapeutics for the ALGS community, it was developed by National Organization for Rare Disorders (NORD).
Below, you will find frequently asked questions about Alagille Syndrome which will continue to be expanded through 2024.
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Adults with ALGS
Alagille Syndrome (OMIM #118450) is a rare genetic pediatric cholestatic liver disease that can affect multiple organ systems of the body including the liver, heart, skeleton, eyes and kidneys. The specific symptoms and severity of Alagille syndrome can vary greatly from one person to another, even within the same family. Some individuals may have mild forms of the disorder while others may have more serious forms.
Most people with Alagille syndrome have mutations in one copy of the JAG1 gene. A small percentage (less than 1 percent) of patients have mutations of the NOTCH2 gene. These mutations are inherited as autosomal dominant traits, however in about half of cases the mutation occurs as a new change (“de novo”) in the individual and was not inherited from a parent. The current estimated incidence of ALGS is between 1:30,000 and 1:70,000 with no difference in gender.
Click on any of the images on the right hand side of this page to view a very informative video about Alagille Syndrome.
Recommended Reading
Frequently Asked Questions
How is Alagille syndrome diagnosed?
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How is Alagille syndrome diagnosed?
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Is there a cure for Alagille syndrome?
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Is Alagille syndrome hereditary?
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How is Alagille syndrome diagnosed?
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What are the symptoms / characteristics of Alagille Syndrome?
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Are there treatments for Alagille syndrome?
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Is Alagille syndrome life limiting or life threatening?
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ALGS Specialist
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Program Name (Pediatrics)
Location Details
Important Links
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USA
Program Name (Pediatrics)
Alagille Syndrome Program 650-399-3765 Alagille@stanfordchildrens.org
Location Details
Lucile Packard Children’s Hospital Stanford 725 Welch Rd State: California Palo Alto, CA 94304
The ALGSA has developed numerous educational resources, manuals and guides, one-page informational resources, and more which keep patients and families informed in many areas. Explore our resource library which will continue to grow as we load them into our new website over the next few weeks.
National Organization for Rare Disorders
NORD Alagille Syndrome Explanation Video
ALGS education is crucial for understanding the unique complexity of Alagille Syndrome. The reasons behind its varying severity remain unclear, making accessible resources essential. Explore our updated library covering diagnosis, ALGS in the classroom, genetics, and more.
Karger Learning Module for Physicians and Patients
This interactive course is designed to teach healthcare providers about the pathophysiology, diagnosis and management of Alagille Syndrome, touching on clinical advances and research directions in the field.
HCP live
Peer Exchange: Management of ALGS
HCP Live's 2022 educational series on Alagille Syndrome Management, featuring experts like Dr. Balistreri and Dr. Rosenthal, provides insights into diagnosis and treatment optimization for this condition.
Rare Disease 360
Rare Disease 360 – Alagille Syndrome Channel
Rare Disease 360, ALGSA's media partner, is a hub for rare disease information. Teaming up in 2019, they provide current insights on Alagille Syndrome for healthcare professionals through articles, case studies, and news. Explore the site for the latest on ALGS.
Resource Library
Patient and Caregiver Manuals and Guides
One-Page Educational Resources
Translated Resources
ALGSA Patient and Family Program Guide
New Diagnosis Guide
ALGS Care Manual
Succeeding in the Classroom Guide
ALGSA Navigating IEPs and 504s Quick Reference
What is Alagille Syndrome
The Genetics of ALGS
Genetics of ALGS: FAQ
Alagille Syndrome - More Than a Liver Disease
Hepatocellular carcinoma (HCC) in Alagille Syndrome
We have many translated resources and we will continue to add to the website. If you have something you're interested in please email us.