Medical research

Scientists identify an innate function of vitamin E

It's rubbed on the skin to reduce signs of aging and consumed by athletes to improve endurance but scientists now have the first evidence of one of vitamin E's normal body functions.

Neuroscience

How neurons talk to each other

Neurons are connected to each other through synapses, sites where signals are transmitted in the form of chemical messengers. Reinhard Jahn, Director at the Max Planck Institute for Biophysical Chemistry in Göttingen, has ...

Neuroscience

Control of secretory trafficking in neurons

(Medical Xpress)—Neuroscience typically proceeds by trimming back previous overly dogmatic statements. Such is the case with new findings that proteins are locally manufactured to order throughout an extended neuronal tree. ...

Immunology

Exosomal transmission of viral resistance in Hepatitis B

(Medical Xpress)—To move material in bulk, the standard shipping container used by cells, is the vesicle. These approximately 40-micron sized spheres are essentially recyclable grocery bags that can be loaded and adorned ...

HIV & AIDS

New view of HIV entry may lead to next generation of inhibitors

Scientists may need to rethink the design of drugs meant to block HIV from infecting human cells, according to a study that appears in the May 1st issue of the journal Cell, a Cell Press publication. That's because the new ...

Oncology & Cancer

Researchers uncover new target to stop cancer growth

Researchers at the University of Wisconsin-Madison have discovered that a protein called Munc13-4 helps cancer cells secrete large numbers of exosomes—tiny, membrane-bound packages containing proteins and RNAs that stimulate ...

page 1 from 6

Cell membrane

The cell membrane (also called the plasma membrane or plasmalemma) is the biological membrane separating the interior of a cell from the outside environment.

It is a semipermeable lipid bilayer found in all cells. It contains a wide variety of biological molecules, primarily proteins and lipids, which are involved in a vast array of cellular processes such as cell adhesion, ion channel conductance and cell signaling. The plasma membrane also serves as the attachment point for both the intracellular cytoskeleton and, if present, the extracellular cell wall.

This text uses material from Wikipedia, licensed under CC BY-SA