Microbiology

Circadian rhythm is the basic 24-hour cycle that involves various behaviors, including sleeping and eating, in all living organisms. In mammals, the circadian clock is organized hierarchically in a…

Physical alterations of DNA in chromosomes can cause serious diseases such as Down syndrome, Prader-Willi syndrome, or cancer. Likewise, changes to the physiological environment of cells—with drugs…

Copper is an essential part of our lives. From copper pipes and wires - to important copper-containing proteins in the body, copper is necessary for healthy growth and neurological development.…

Recent data from the Lung Allograft Rejection Gene expression Observational (LARGO) study provides compelling evidence that profiling gene expression in peripheral blood can detect organ rejection in…

New studies in the laboratory of Dr. Darwin J. Prockop, Director of Tulane University’s Center for Gene Therapy, are shedding light on the previously mysterious mechanism through which even…

Scientists have determined that a specific class of PCB causes significant developmental abnormalities in rat pups whose mothers were exposed to the toxicant in their food during pregnancy and…

Despite the fact that they both infect the liver, the hepatitis A and hepatitis C viruses actually have very little in common. The two are far apart genetically, are transmitted differently, and…

Working with fruit flies, scientists at Johns Hopkins have discovered a protein required for two neighboring cells to fuse and become one "super cell." Most cells enjoy their singular existence,…

The aphid Acyrthosiphon pisum depends on a bacterial symbiont, Buchnera aphidicola, for amino acids it can't get from plants. The aphid, in turn, provides the bacterium with energy and carbon as…

Proteins, which form much of the molecular machinery required for life, are the targets of most drug molecules. One third of all proteins are membrane proteins – embedded within the cell’s fatty…