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Lower levels of HDL cholesterol were associated with increased risks for heart attacks in white but not Black adults, and higher levels were not protective for either group A National Institutes of Health-supported study found that high-density lipoprotein (HDL) cholesterol, often called the “good cholesterol,” may not be as effective as scientists...
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Research Feature
Blood has been called the river of life, and for good reason. Blood transports life-sustaining oxygen and nutrients. Blood automatically forms a clot when we get cut. Blood helps our immune system fight off germs. Each year, nearly 5 million Americans need a blood transfusion. Fortunately, the vast majority of transfusions are effective and cause...
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Research Feature
The heart is the first organ to form and begin working in humans. More than two decades of research have told us a lot about normal heart development. New diagnostic tools such as fetal echocardiography now allow doctors to find heart defects during pregnancy. In 1950, a child born with a congenital heart defect had only a 20 percent chance of...
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Research Feature
In the mid-20th century, deaths from cardiovascular diseases, and particularly coronary heart disease and stroke, were skyrocketing, yet no one was sure what caused cardiovascular diseases or how they could be treated or prevented. By 1950, more than twice as many Americans died annually from cardiovascular diseases as from cancer. Until the 1950s...
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Research Feature
[embed type:node embed_type:image id:1929 align:right]Today, many people know that a diet high in saturated fat and cholesterol can lead to clogged arteries and heart attacks, but that was not always common knowledge. The landmark Framingham Heart Study of the National Heart, Lung, and Blood Institute (NHLBI), begun in 1948, helped identify the...
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Research Feature
Meeting 26-year old Tiffany McCoy, a bubbly and happy mother, you would never know that she has a serious disease. She is one of about 100,000 Americans with sickle cell disease. Her life, like that of many others with sickle cell disease, has been immeasurably improved because of research supported by the National Institutes of Health (NIH)...
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Research Feature
In English Al conocer a Tiffany McCoy, una madre feliz y efusiva de 26 años, nadie pensaría que tiene una enfermedad grave. Ella es uno de cerca de 100.000 estadounidenses con anemia de células falciformes. Su vida, así como la de muchas otras personas con anemia de células falciformes, ha mejorado enormemente gracias a las investigaciones...
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Research Feature
[embed type:node embed_type:image id:2041 align:right]In August 1963, the younger son of President and Mrs. Kennedy died of respiratory distress syndrome (RDS). Patrick Bouvier Kennedy, who was born 5½ weeks prematurely and weighed only 4 pounds, 10½ ounces, lived for less than two days. Because his lungs were not fully developed, breathing was for...
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Research Feature
In English Preguntas ¿Qué es el rasgo de células falciformes? ¿Cuál es la diferencia entre el rasgo de células falciformes y la anemia de células falciformes? ¿Qué significa que alguien tenga el rasgo de células falciformes? ¿Qué investigación se está llevando a cabo para entender mejor el rasgo de células falciformes? ¿Qué es el rasgo de células...
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Research Feature
Questions What is sickle cell trait? What is the difference between sickle cell trait and sickle cell disease? What does it mean if someone has sickle cell trait? What research is being done to better understand sickle cell trait? What is sickle cell trait? Sickle cell trait occurs when a person carries a single copy of the sickle globin gene...
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Research Feature
Today, the National Heart, Lung, and Blood Institute (NHLBI), one of the National Institutes of Health, announced a "Grand Opportunity" Large-Scale DNA Sequencing Project that will spend more than $64 million over two years to identify genetic connections to heart, lung, and blood diseases that account for three of the four leading causes of death...