WS-SAVE Study (Williams Syndrome Skin and Vessel Elasticity Study)
| Status: | Completed |
|---|---|
| Conditions: | Cognitive Studies, High Blood Pressure (Hypertension), Other Indications, Peripheral Vascular Disease |
| Therapuetic Areas: | Cardiology / Vascular Diseases, Psychiatry / Psychology, Other |
| Healthy: | No |
| Age Range: | 1 - 70 |
| Updated: | 4/3/2019 |
| Start Date: | February 25, 2016 |
| End Date: | December 15, 2017 |
Williams Syndrome Skin and Vascular Elasticity Study (WS-SAVE Study)
Background:
Williams Syndrome (WS) is a genetic disorder. People with WS have less of a protein that
allows parts of the body to stretch than other individuals. Researchers are interested in the
stretchiness of the skin of people with WS and how it may relate to cardiovascular problems
some people with WS develop. They are also interested in identifying exposures such as
medications that may change the elasticity of the skin and vessels.
Objective:
To learn more about the skin and blood vessels in individuals with WS and how those tissues
change over time.
Eligibility:
People ages 5-70 with WS.
People ages 1-70 with a medical condition that affects connective tissue.
Design:
Participants will be screened with a review of their medical records.
Participants will have 1 visit. Participants with WS may do so at a Williams Syndrome
Association family meeting or camp, or at NIH. Other participants will be seen at NIH.
During the visit, participants will have height, weight, and blood pressure measured.
Researchers will listen to the participant s chest and abdomen.
Participants skin will be examined. It may be photographed.
Participants will have photos of their eyes and face taken.
Researchers will use a DermaLab Suction Cup Probe. A small suction cup will be placed on the
arm with a sticker. It will pull lightly on the skin. This allows a computer to measure skin
flexibility.
Researchers will use a SphygmoCor. A probe that looks like a dull pencil will be placed on
the wrist, neck, and groin area. A computer will measure how fast the pulse is moving and
will estimate blood vessel flexibility.
Participants may be invited to have these procedures repeated at a later date (2 years from
now or more).
Williams Syndrome (WS) is a genetic disorder. People with WS have less of a protein that
allows parts of the body to stretch than other individuals. Researchers are interested in the
stretchiness of the skin of people with WS and how it may relate to cardiovascular problems
some people with WS develop. They are also interested in identifying exposures such as
medications that may change the elasticity of the skin and vessels.
Objective:
To learn more about the skin and blood vessels in individuals with WS and how those tissues
change over time.
Eligibility:
People ages 5-70 with WS.
People ages 1-70 with a medical condition that affects connective tissue.
Design:
Participants will be screened with a review of their medical records.
Participants will have 1 visit. Participants with WS may do so at a Williams Syndrome
Association family meeting or camp, or at NIH. Other participants will be seen at NIH.
During the visit, participants will have height, weight, and blood pressure measured.
Researchers will listen to the participant s chest and abdomen.
Participants skin will be examined. It may be photographed.
Participants will have photos of their eyes and face taken.
Researchers will use a DermaLab Suction Cup Probe. A small suction cup will be placed on the
arm with a sticker. It will pull lightly on the skin. This allows a computer to measure skin
flexibility.
Researchers will use a SphygmoCor. A probe that looks like a dull pencil will be placed on
the wrist, neck, and groin area. A computer will measure how fast the pulse is moving and
will estimate blood vessel flexibility.
Participants may be invited to have these procedures repeated at a later date (2 years from
now or more).
Williams syndrome (WS) is a multisystem developmental disorder caused by deletion of 26-28
genes, including the elastin gene, located on chromosome 7q11.23. Cardiovascular disease in
WS, including obstructive vascular disease and hypertension, and relatively mild skin changes
are caused by the elastin gene deletion. Even though all WS subjects are missing one copy of
this gene, the expression of cardiovascular problems is highly variable, ranging from no
significant disease to severe generalized arteriopathy leading to infant death. The causes of
vascular variability are currently unknown, and male gender is the only disease modifier
described to date. Clinically, skin is described as abnormally soft, smooth and easily
mobilized , while ultrastructurally the elastic fibers are abnormal with reduced amorphous
elastin.
The overall objective of this study is to establish quantitative norms that can be used to
determine the severity of vascular disease in elastin insufficiency and then to identify risk
factors that contribute to that variability. It is also important to determine how
stable/variable these findings are over time.
genes, including the elastin gene, located on chromosome 7q11.23. Cardiovascular disease in
WS, including obstructive vascular disease and hypertension, and relatively mild skin changes
are caused by the elastin gene deletion. Even though all WS subjects are missing one copy of
this gene, the expression of cardiovascular problems is highly variable, ranging from no
significant disease to severe generalized arteriopathy leading to infant death. The causes of
vascular variability are currently unknown, and male gender is the only disease modifier
described to date. Clinically, skin is described as abnormally soft, smooth and easily
mobilized , while ultrastructurally the elastic fibers are abnormal with reduced amorphous
elastin.
The overall objective of this study is to establish quantitative norms that can be used to
determine the severity of vascular disease in elastin insufficiency and then to identify risk
factors that contribute to that variability. It is also important to determine how
stable/variable these findings are over time.
- INCLUSION/EXCLUSION CRITERIA:
For WS participants:
Individuals participating in this study must:
- Have a diagnosis of WS
- Be between the ages of 5 and 70 years old
- Be able to tolerate blood pressure measurements
- Have a parent/guardian available to provide consent and assist in answering medical
questions.
- Express willingness to schedule an in-person assessment with us.
The only indication for study staff to terminate an individual s participation in this
study would be if the family is unable to schedule an in-person assessment with us.
For unaffected control participants:
Individuals participating in this study must:
- Not have a diagnosis of WS or other connective tissue disease.
- Be between the ages of 1 and 70 years old
- If a minor, have a parent/guardian available to provide consent and assist in
answering medical questions.
For control participants with connective tissue disease:
Individuals participating in this study must:
- Not have a diagnosis of WS
- Have a clinical or molecular diagnosis of connective tissue disease.
- Be between the ages of 1 and 70 years old
- If a minor, have a parent/guardian available to provide consent and assist in
answering medical questions.
We found this trial at
1
site
9000 Rockville Pike
Bethesda, Maryland 20892
Bethesda, Maryland 20892
Phone: 800-411-1222
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