Programmed cell death

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Programmed cell-death (or PCD) is death of a cell in any form, mediated by an intracellular program. In contrast to necrosis, which is a form of cell-death that results from acute tissue injury and provokes an inflammatory response, PCD is carried out in a regulated process which generally confers advantage during an organism's life-cycle. PCD serves fundamental functions during both plant and metazoa (multicellular animals) tissue development.

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News tagged with cell death

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Newly Discovered Fat Molecule: An Undersea Killer with an Upside

Newly Discovered Fat Molecule: An Undersea Killer with an Upside

Chemistry / Biochemistry

created Nov 05, 2009 | popularity 4.8 / 5 (10) | comments 0

(PhysOrg.com) -- A chemical culprit responsible for the rapid, mysterious death of phytoplankton in the North Atlantic Ocean has been found by collaborating scientists at Rutgers University and the Woods Hole ...


Messenger RNA with FLASH

Biology / Cell & Microbiology

created Oct 22, 2009 | popularity not rated yet | comments 0

A study from the University of North Carolina at Chapel Hill has identified a key player in a molecular process essential for DNA replication within cells.


Could drugs for mood disorders, pain and epilepsy cause psychiatric disorders later in life?

Medicine & Health / Neuroscience

created Oct 20, 2009 | popularity not rated yet | comments 0

Young animals treated with commonly-prescribed drugs develop behavioral abnormalities in adulthood say researchers at Georgetown University Medical Center. The drugs tested include those used to treat epilepsy, mood disorders ...


Researchers optimizing progesterone for brain injury treatment

Medicine & Health / Research

created Oct 19, 2009 | popularity not rated yet | comments 0

As doctors begin to test progesterone for traumatic brain injury at sites across the country, researchers are looking ahead to optimizing the hormone's effectiveness.


APP -- Good, bad or both?

Medicine & Health / Neuroscience

created Oct 18, 2009 | popularity not rated yet | comments 0

New data about amyloid precursor protein, or APP, a protein implicated in development of Alzheimer's disease, suggests it also may have a positive role -- directly affecting learning and memory during brain development. So ...


Cell death occurs in the same way in plants, animals and humans

Cell death occurs in the same way in plants, animals and humans

Biology / Cell & Microbiology

created Oct 13, 2009 | popularity 5 / 5 (2) | comments 0

Research has previously assumed that animals and plants developed different genetic programs for cell death. Now an international constellation of research teams, including one at the Swedish University of ...


Too much of a good thing? Scientists explain cellular effects of vitamin A overdose and deficiency

Medicine & Health / Research

created Oct 08, 2009 | popularity 4 / 5 (4) | comments 0

If a little vitamin A is good, more must be better, right? Wrong! New research published online in the FASEB Journal shows that vitamin A plays a crucial role in energy production within cells, explaining why too much or too ...


The amazing maze of maize evolution

Biology / Plants & Animals

created Oct 02, 2009 | popularity 4.5 / 5 (2) | comments 0

Understanding the evolution and domestication of maize has been a holy grail for many researchers. As one of the most important crops worldwide and as a crop that appears very different from its wild relatives as a result ...


Research puts a 'Fas' to the cause of programmed cell death

Research puts a 'Fas' to the cause of programmed cell death

Medicine & Health / Research

created Sep 30, 2009 | popularity 4.7 / 5 (3) | comments 0

Walter and Eliza Hall Institute researchers have put an end to a 10-year debate over which form of a molecular messenger called Fas ligand is responsible for killing cells during programmed cell death (also ...


How proteins talk to each other: Caspase-3 cleaves in unforeseen ways

Biology / Cell & Microbiology

created Sep 21, 2009 | popularity not rated yet | comments 0

Investigators at Burnham Institute for Medical Research have identified novel cleavage sites for the enzyme caspase-3 (an enzyme that proteolytically cleaves target proteins). Using an advanced proteomic technique called ...


Memories of the way they used to be

Memories of the way they used to be

Biology / Biotechnology

created Sep 18, 2009 | popularity 4.3 / 5 (7) | comments 2

A team of researchers from the University of California, San Diego School of Medicine and the Salk Institute for Biological Studies in La Jolla have developed a safe strategy for reprogramming cells to a pluripotent ...


Green tea component may help preserve stored platelets, tissues

Medicine & Health / Research

created Sep 14, 2009 | popularity 5 / 5 (2) | comments 0

In two separate studies, a major component in green tea, epigallocatechin-3-O-gallate (EGCG), has been found to help prolong the preservation of both stored blood platelets and cryopreserved skin tissues.


Lipid involved with gene regulation uncovered

Medicine & Health / Genetics

created Sep 08, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Virginia Commonwealth University School of Medicine researchers have discovered a new role for the bioactive lipid messenger, sphingosine-1-phosphate, or S1P, that is abundant in our blood - a finding that ...


Important development in the treatment of MS

Important development in the treatment of multiple sclerosis reported

Medicine & Health / Research

created Aug 24, 2009 | popularity 5 / 5 (2) | comments 1

A major step forward, with important implications for understanding how to reduce the severity of multiple sclerosis, has been made by scientists at the University of Bristol. The results are published online ...


Hepatitis C virus channels efforts into cell survival

Medicine & Health / Research

created Aug 17, 2009 | popularity not rated yet | comments 0

Researchers at the University of Leeds have discovered a previously unknown mechanism that allows the hepatitis C virus (HCV) to remain in the body for decades.