Patients with lupus are at increased risk of heart disease. Exposing endothelial cells -- known to protect against heart disease, in part by producing nitric oxide -- to the serum of patients with ...

Doctors have long treated heart attacks, improved asthma symptoms, and cured impotence by increasing levels of a single molecule in the body: nitric oxide. The tiny molecule can change how proteins ...

Enzymes help with specific functions that are vital to the operation and overall health of the body. They help speed up chemical reactions in the human body. They are essential for respiration, ...

Scientists at the University of Bonn have clarified a surprising dual function of ceramide synthase. The enzyme not only catalyzes a central step of the production of vital lipids. It also has the ...

Transfer RNAs (tRNAs) are among the most common types of RNA in a cell and are indispensable for protein production in all known organisms. They have an important "translation" function: They ...

Steviol glycosides, natural sweeteners extracted from Stevia rebaudiana, are widely used as sucrose substitutes due to their ...

A groundbreaking study published in Nature reveals a transformative enzyme that could revolutionize the production of second-generation biofuels. Developed by scientists at Brazil’s Center for ...

Recent findings from a preclinical study conducted by Weill Cornell Medicine researchers have uncovered a pivotal role of the enzyme PGK1 in brain cell energy production, offering new hope for ...

Proceedings of a symposium jointly organized by the IAEA and FAO, Vienna, 15–19 April 1991. The symposium reviewed advances in nutrition and reproduction of ruminant and other herbivorous animals, as ...