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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Naturally occurring lipid blocks RSV infection in lungs

Medicine & Health / Research

created Dec 21, 2009 | popularity 5 / 5 (2) | comments 0

Researchers at National Jewish Health have discovered that a naturally occurring lipid in the lung can prevent RSV infection and inhibit spread of the virus after an infection is established. RSV is the major cause of hospitalization ...


Pores finding reveals targets for cancer and degenerative disease

Pores finding reveals targets for cancer and degenerative disease

Medicine & Health / Cancer

created Dec 18, 2009 | popularity 5 / 5 (1) | comments 0

Walter and Eliza Hall Institute scientists have identified a key step in the biological process of programmed cell death, also called apoptosis.


Drug kills cells through novel mechanism

Drug kills cells through novel mechanism

Biology / Cell & Microbiology

created Dec 10, 2009 | popularity not rated yet | comments 0

MIT and Boston University researchers have discovered that the drug hydroxyurea kills bacteria by inducing them to produce molecules toxic to themselves — a conclusion that raises the possibility of finding ...


Researchers identify proteins in lung cancer cells that may provide potential drug targets

Medicine & Health / Cancer

created Nov 25, 2009 | popularity not rated yet | comments 0

Researchers from Boston University School of Medicine (BUSM) and the Boston University Biomedical Engineering Department have identified a number of proteins whose activation allows them to distinguish between cancer and ...


New understanding about mechanism for cell death after stroke leads to possible therapy

Medicine & Health / Research

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

Scientists at the Brain Research Centre, a partnership of the University of British Columbia Faculty of Medicine and Vancouver Coastal Health Research Institute, have uncovered new information about the mechanism by which ...


Nanoparticles used in common household items caused genetic damage in mice

Nanotechnology / Bio & Medicine

created Nov 16, 2009 | popularity 4.8 / 5 (24) | comments 11

Titanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study conducted by researchers at UCLA's Jonsson ...


How cells tolerate DNA damage -- start signal for cell survival program identified

Biology / Cell & Microbiology

created Nov 16, 2009 | popularity not rated yet | comments 0

Cancer researchers of the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch, Germany, have gained new insights into how cells react to DNA damage. Dr. Michael Stilmann, Dr. Michael Hinz and Professor Claus Scheidereit ...


Now hear this: Mouse study sheds light on hearing loss in older adults

Medicine & Health / Genetics

created Nov 09, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- Becoming "hard of hearing" is a standard but unfortunate part of aging: A syndrome called age-related hearing loss affects about 40 percent of people over 65 in the United States, and will afflict an estimated ...


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 ...