vesicles

Dark skin protects

...anin cells.In mammals, melanin is contained inside vesicles called melanosomes. Larger, more numerous melanosomes make for darker skin. Mackintosh suggests melanosomes might act like lysosomes in the immune system, which engulf invading microorganisms and use enzymes to kill them. "Melanin is a sticky molecu...

Medical Boon in the Form of a Biofriendly Capsule

...ranes. The construction of useful artificial lipid vesicles was previously not possible, because the vesicles were too delicate. Granick and graduate student Liangfang Zhang found a way to stabilize lipids and ...

Scientists Uncover The Secret Behind The Speed In Nerve cells Conduction

...s for us to read these words, tens of thousands of vesicles in our optic nerves are released in sequence, whic...ls are one of the few cells in our bodies in which vesicles are prepositioned at the cell membrane, because they have to be ready to release neurotransmitter to...

Study Shows Tomosyn Plays an Important Role in Learning and Memory

...ture of where neurotransmitter-containing synaptic vesicles and proteins cluster. Mutant worms lacking tomosyn...rotein helps put a limit on the number of synaptic vesicles that become competent to fuse at synapses, thereby regulating the amount of neurotransmitter release...

Link Between Huntington’s and Abnormal Cholesterol Levels in Brain Establishe

...aveolin-1 is the major structural protein of small vesicles called caveolae, which capture cholesterol and move it in and out of the neuronal membranes. When the researchers “knocked out” expression of caveolin, the neurons expressing mutant Huntington’s protein stopped accumulating cholesterol. ource-News...

Genetic Test for Type II Diabetes Moves Closer

...zinc transporter expressed solely by the secretory vesicles of beta-cells. This gene is implicated in the final stages of insulin biosynthesis, which involve the co-crystallisation with zinc. Notably, the over-expression of the SLC30A8 gene in insulinoma cells (pancreatic endocrine cancer cells) increases glu...

Study Revises Dynamin's Role in Nerve Cell Function

...nals, called neurotransmitters, into tiny synaptic vesicles within the cell. The new study finds that the enzyme is not always necessary for this process. Instead, dynamin 1 goes into action only when the synapse enters moments of especially high activity. 'In that sense, dynamin 1 remains crucial, allowi...

Researchers Link Bacteria Destroying Proteins to Alzheimer's Treatment

...ucing accumulation of the amyloid beta proteins in vesicles inside the cell called endosomes. "A lot of research has been done on protein clusters outside nerve cells," Gouras says. "In this study, we investigated for the first time what happens inside the cells and how antibodies can help prevent clusters ...