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Latest Organelles Stories

2012-08-24 00:23:33

Researchers find that optimal length of mitochondria in neurons is essential to preventing onset of Alzheimer's and other tau-related diseases Goldilocks was on to something when she preferred everything "just right." Harvard Medical School researchers have found that when it comes to the length of mitochondria, the power-producing organelles, applying the fairy tale's mantra is crucial to the health of a cell. More specifically, abnormalities in mitochondrial length promote the...

2012-08-07 23:33:26

Inflammation and cell stress play important roles in the death of insulin-secreting cells and are major factors in diabetes. Cell stress also plays a role in Wolfram syndrome, a rare, genetic disorder that afflicts children with many symptoms, including juvenile-onset diabetes. Now a molecule has been identified that's key to the cell stress-modulated inflammation that causes insulin cells to die, report scientists at Washington University School of Medicine in St. Louis, the University of...

2012-08-04 02:07:05

3D movie at ℠ultraresolution´ shows how cell´s machinery bends membrane inwards Scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, have combined the power of two kinds of microscope to produce a 3-dimensional movie of how cells ℠swallow´ nutrients and other molecules by engulfing them. The study, published today in Cell, is the first to follow changes in the shape of the cell´s membrane and track proteins thought to...

Programmed Cell Death Explained By Lace Plants
2012-07-25 08:21:31

Programmed cell death (PCD) is a highly regulated process that occurs in all animals and plants as part of normal development and in response to the environment. New research published in BioMed Central's open access journal BMC Plant Biology is the first to document the physiological events in the lace plant (Aponogeton madagascariensis) which occur via PCD to produce the characteristic holes in its leaves. The aquatic lace plant, endemic to Madagascar, uses PCD to generate holes in its...

Mechanism For Organ Placement Shared By Human Cells, Plants, Worms And Frogs
2012-07-17 10:19:48

New research identifies special protein that determines what goes where As organisms develop, their internal organs arrange in a consistent asymmetrical pattern--heart and stomach to the left, liver and appendix to the right. But how does this happen? Biologists at Tufts University have produced the first evidence that a class of proteins that make up a cell's skeleton -- tubulin proteins -- drives asymmetrical patterning across a broad spectrum of species, including plants, nematode...

2012-07-11 14:36:43

Tracked step for step ATP splitting in membrane protein dynamically measured for the first time RUB researchers report in the Journal of Biological Chemistry How a transport protein obtains its driving force from the energy storage molecule ATP, has been tracked dynamically by RUB researchers. Using time-resolved infrared spectroscopy, they measured the structural changes in the bacterial membrane protein MsbA and its interaction partner ATP. The researchers led by Prof. Dr. Eckhard...

2012-07-05 23:58:43

The findings have implications for the development of new anti-cancer drugs Scientists from the Florida campus of The Scripps Research Institute have identified a series of intricate biochemical steps that lead to the successful production of proteins, the basic working units of any cell. The study, which appears in the July 6, 2012 edition of the journal Cell, sheds light on the assembly of a structure called the ribosome, a large and complex protein-producing machine inside all living...

2012-07-04 22:48:34

Finding biocompatible carriers that can get drugs to their targets in the body involves significant challenges.  Beyond practical concerns of manufacturing and loading these vehicles, the carriers must work effectively with the drug and be safe to consume. Vesicles, hollow capsules shaped like double-walled bubbles, are ideal candidates, as the body naturally produces similar structures to move chemicals from one place to another. Finding the right molecules to assemble into capsules,...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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