Think you can’t donate your tissue since you have rheumatoid arthritis? Think again. Researchers want your tissue and blood samples in order to conduct a variety of research projects.
The Robert S. Boas Center for Genomics & Human Genetics , as part of the Feinstein Institute for Medical Research in New York, is examining patterns in the human genome to find specific genetic risks for diseases such as rheumatoid arthritis or lupus to Alzheimer’s disease and schizophrenia.
Established in 1997 by a group of rheumatologists and researchers from across the country, the North American Rheumatoid Arthritis Consortium (NARAC) has identified several major risk genes for RA . NARAC is led by Feinstein Institute researcher, Peter K. Gregersen, MD, who identified the two polymorphisms associated with RA and lupus - PTPN22 and STAT4 - years ago.
Although there is still much to know about genetic risk factors rheumatoid arthritis and other diseases, co...
Bloody stools often are a sign of an injury or disorder in the digestive tract. Your doctor may use the term "melena" to describe black, tarry, and foul-smelling stools or "hematochezia" to describe red- or maroon-colored stools.
Stools - bloody; Hematochezia; Melena; Stools - black or tarry
Blood in the stool may come from anywhere along your digestive tract, from mouth to anus. It may be present in such small amounts that you cannot actually see it, and it is only detectable by a fecal occult blood test.
When there is enough blood to change the appearance of your stools, the doctor will want to know the exact color to help find the site of bleeding. To make a diagnosis, your doctor may use endoscopy or special x-ray studies.
Black stool usually means that the blood is coming from the upper part of the gastrointestinal (GI) tract. This includes the esophagus, stomach, and the first part of the small i...
Creatinine is a breakdown product of creatine, which is an important part of muscle. Creatinine is removed from the body entirely by the kidneys. This article discusses the test done to measure the amount of creatinine in your urine.
A blood test can also be used to determine your creatinine level. See: Serum creatinine
Urine creatinine test
How the test is performed
A random urine sample or a 24-hour collection may used. For information on how to collect a 24-hour urine sample, see: 24-hour urine collection .
How to prepare for the test
Your health care provider may tell you to temporarily stop taking certain medicines that may interfere with test results. Such medicines include:
How the test will feel
The test involves only normal urination, and there is no discomfort.
Why the test is performed
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