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PI left the University, sponsor pulled funding
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The investigators propose to characterize MPs in aHUS and TTP both at the onset and throughout treatment. The investigators believe that the number, size, and cell origin of MPs will differ between these two diseases. The hypothesis is that endothelial derived MPs will be higher in number and comprise a larger portion of the MP population in aHUS and that platelet MPs will comprise a larger number and greater proportion of MPs in TTP. The investigators believe that MP identity and number can be used to reliably differentiate between aHUS and TTP at disease onset.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| aHUS | atypical Hemolytic Uremic Syndrome | ||
| TTP | Thrombotic thrombocytopenic purpura | ||
| MAHA | other microangiopathic hemolytic anemias |
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| Measure | Description | Time Frame |
|---|---|---|
| Microparticle/Nanoparticle number (an absolute number) | an average of 3 months | |
| Microparticle/Nanoparticle size (in nanometers or micrometers) | an average of 3 months | |
| Microparticle/Nanoparticle identity (identity of cell type from which they are derived) | an average of 3 months |
| Measure | Description | Time Frame |
|---|---|---|
| Morbidities | 3 months | |
| Mortality | 3 months |
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Inclusion Criteria:
Exclusion Criteria:
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Patients presenting with Microangiopathic Hemolytic Anemias (MAHA), TTP, and/or aHUS are eligible.
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| Name | Affiliation | Role |
|---|---|---|
| Amy Schmidt, MD PhD | University of Rochester | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Rochester Medical Center | Rochester | New York | United States |
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| ID | Term |
|---|---|
| D065766 | Atypical Hemolytic Uremic Syndrome |
| D011697 | Purpura, Thrombotic Thrombocytopenic |
| D000743 | Anemia, Hemolytic |
| ID | Term |
|---|---|
| D006463 | Hemolytic-Uremic Syndrome |
| D014511 | Uremia |
| D007674 | Kidney Diseases |
| D014570 | Urologic Diseases |
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platelet poor plasma samples will be retained. These samples will contain Microparticles and nanoparticles as well as microRNA.
| D052776 |
| Female Urogenital Diseases |
| D005261 | Female Urogenital Diseases and Pregnancy Complications |
| D000091642 | Urogenital Diseases |
| D052801 | Male Urogenital Diseases |
| D000740 | Anemia |
| D006402 | Hematologic Diseases |
| D006425 | Hemic and Lymphatic Diseases |
| D057049 | Thrombotic Microangiopathies |
| D013921 | Thrombocytopenia |
| D001791 | Blood Platelet Disorders |
| D000095542 | Cytopenia |
| D011696 | Purpura, Thrombocytopenic |
| D011693 | Purpura |
| D001778 | Blood Coagulation Disorders |
| D019851 | Thrombophilia |
| D006470 | Hemorrhage |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012877 | Skin Manifestations |
| D012816 | Signs and Symptoms |