Loeys-Dietz syndrome type 1A

Common Name(s)

Loeys-Dietz syndrome type 1A

The Loeys-Dietz syndrome (LDS) is an autosomal dominant aortic aneurysm syndrome with widespread systemic involvement. As defined by {8:Loeys et al. (2006)}, the disorder is characterized by the triad of arterial tortuosity and aneurysms, hypertelorism, and bifid uvula or cleft palate. Some patients have craniofacial involvement consisting of cleft palate, craniosynostosis, or hypertelorism. Bifid uvula may also be present. The natural history is characterized by aggressive arterial aneurysms and a high rate of pregnancy-related complications. LDS is also associated with immunologic-related disorders: approximately one-third of affected individuals exhibit food allergies, in contrast to a prevalence of 6 to 8% in the general population, and LDS patients have an increased prevalence of asthma, rhinitis, and eczema (summary by {9:MacCarrick et al., 2014}). Genetic Heterogeneity of Loeys-Dietz Syndrome LDS1 is caused by mutation in the TGFBR1 gene. LDS2 ({610168}) is caused by mutation in the TGFBR2 gene ({190182}). LDS3 ({613795}), which is associated with early-onset osteoarthritis, is caused by mutation in the SMAD3 gene ({603109}). LDS4 ({614816}) is caused by mutation in the TGFB2 gene ({190220}). Reviews {9:MacCarrick et al. (2014)} provided a review of LDS, stating that there are no specific clinical criteria for the diagnosis, which is confirmed by molecular testing. They proposed that mutation in any of the 4 genes, TGFBR1, TGFBR2, SMAD3, or TGFB2, in combination with arterial aneurysm or dissection or a family history of documented LDS, should be sufficient to establish the diagnosis. The authors noted that rapidly progressive aortic aneurysmal disease is a distinct feature of LDS, and they discussed management strategies for cardiovascular issues as well as other complications of LDS.
 

Advocacy and Support Organizations

 

Condition Specific Organizations

Following organizations serve the condition "Loeys-Dietz syndrome type 1A" for support, advocacy or research.

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Canadian Marfan Association

Increasing awareness, saving lives, and improving the quality of life for patients, their families, and medical professionals affected by Marfan syndrome, genetic aortic disorders, and related connective tissue disorders through national programs of education, support, and research.

Last Updated: 22 Jan 2013

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Loeys Dietz Syndrome Foundation

The Loeys-Dietz Syndrome Foundation (LDSF) is a 501(c)3 nonprofit organization dedicated to bringing greater awareness to Loeys-Dietz syndrome (LDS) by encouraging education, fostering research and providing support for those impacted by LDS.

Last Updated: 5 May 2014

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Advocacy and Support Organizations

 

Condition Specific Organizations

Following organizations serve the condition "Loeys-Dietz syndrome type 1A" for support, advocacy or research.

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Canadian Marfan Association

Increasing awareness, saving lives, and improving the quality of life for patients, their families, and medical professionals affected by Marfan syndrome, genetic aortic disorders, and related connective tissue disorders through national programs of education, support, and research.

http://www.marfan.ca

Last Updated: 22 Jan 2013

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Loeys Dietz Syndrome Foundation

The Loeys-Dietz Syndrome Foundation (LDSF) is a 501(c)3 nonprofit organization dedicated to bringing greater awareness to Loeys-Dietz syndrome (LDS) by encouraging education, fostering research and providing support for those impacted by LDS.

http://www.loeysdietz.org/en/

Last Updated: 5 May 2014

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Scientific Literature

Articles from the PubMed Database

Research articles describe the outcome of a single study. They are the published results of original research.
The terms "Loeys-Dietz syndrome type 1A" returned 0 free, full-text research articles on human participants.

Reviews from the PubMed Database

Review articles summarize what is currently known about a disease. They discuss research previously published by others.
The terms "Loeys-Dietz syndrome type 1A" returned 0 free, full-text review articles on human participants.

 
 
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Symptoms, Diagnosis, and Treatment

There are currently no related results available in Genetics Home Reference.

 
 
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Clinical Trial Information This information is provided by ClinicalTrials.gov

There are currently no open clinical trials for this condition.