Dataset Information

Characterizing Phenotype(s) in MPS III

ABSTRACT:

Mucopolysaccharidosis III (MPSIII) syndrome is characterized by a severe cognitive decline ending in dementia and death. MPSIII is also associated with a range of abnormal and disruptive behaviors that can include, but go well beyond, childhood noncompliance and oppositionality. The purpose of this study is to conduct a cross-sectional investigation to identify the behavioral phenotype and its neural basis in MPSIII. An overall goal of this research is to develop easily administered, sensitive and specific neurobehavioral markers to characterize the behavioral phenotype(s) of MPSIII, track their progression, and to delineate their possible neural substrates. The study looks to develop develop a sensitive and specific behavioral rating of disease progression in MPS III which can be used for clinical outcome studies.

The research objectives are:

Develop a measure for the use of health professionals to use in tracking MPSIII phenotypes and disease progression.
Test our model of MPSIII with objectively recorded behaviors in a well-defined experimental setting.
Elucidate the neural bases of MPSIII by correlating behavioral profiles with changes in brain structures through quantitative neuroimaging.
Determine the relationship between the loss of cognitive functions and development of behavioral abnormalities in MPSIII.

This is an observational pilot study that will enroll 45 individuals with MPS III Type A or B. Those participating in the study will be evaluated during a one-day assessment and chart review.

PROVIDER: phs001330 | dbGaP |

SECONDARY ACCESSION(S): PRJNA378818PRJNA378817

REPOSITORIES: dbGaP

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Dataset's files

Source:

			Action	DRS
	GapExchange_phs001330.v1.p1.xml	Xml
	dbGaPEx2.1.5.xsd	Other
	phs001330.v1-Documents.zip	Other
	Study_Report.phs001330.LDN_6707.v1.p1.MULTI.pdf	Pdf
	manifest_phs001330.LDN_6707.v1.p1.c1.GRU-IRB-PUB.pdf	Pdf

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Project description:Mucopolysaccharidosis (MPS) types I, II, IV, VI and VII, are inherited diseases that result from the bodies inability to break down large sugar molecules that are by-products of metabolism. MPS affects most organs of the body and causes abnormalities in the liver, spleen, bones, and brain. We are studying the central nervous system (primarily the brain) so we can better understand the nature of the problems individuals with MPS I, II, IV, VI and VII have so we can find ways of better treating these problems. We would like to find out about the changes in the brain of individuals with MPS I, II, IV, VI and VII using data from MRI and neuropsychological tests. This is a longitudinal study so patients who enroll will need to be seen 3 times over 5 years. The longitudinal nature of the study allows us to make conclusions about how changes in some structures of the brain and changes in cognitive ability are related. The research objectives are: <ol> <li>To identify abnormalities of brain (and central nervous system) structure and function in patients with MPS I, II, IV, VI and VII, regardless of how they are being treated or have been treated in the past; and to track disease progression over time.</li> <li>To examine the degree to which independent variables (e.g., age at first treatment, severity of disease, types of medical abnormalities, mutation, medical events, and sensory abnormalities) have an impact on both functional and structural outcomes as well as on quality-of-life.</li> <li>To identify, through longitudinal study, those measures that most accurately reflect the current disease state.</li> </ol> This is a longitudinal study of 75-100 individuals with either MPS I, II, IV, VI and VII. Those participating in the study will be evaluated 3 times over 5 years. The primary site for this study is the University of Minnesota but there are an additional 6 centers in the United States and Canada that are also participating and will provide data for analysis. You will need to be able to travel to Minnesota or one of the participating centers in order to be a part of this study.

Dataset Information

Characterizing Phenotype(s) in MPS III

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