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news archive: Nov-Dec 2007
Health & longevity news archive: Nov-Dec 2007
Drug target to stop cancer spread
(Dec 29, 2007)
UK scientists have uncovered a vital clue to stopping cancers
spreading around the body. A protein called Tes is able to block
a second protein, Mena, from helping cancer cells "crawl" away
from the initial tumour. The London Research Institute team says
this knowledge should help in the design of new drug treatments
to anchor a tumour in one site.
Read
more. Source: BBC |
Sperm clue to 'disease immunity'
(Dec 15, 2007)
Sperm could provide a vital clue to how diseases like cancer and
HIV spread through the body, a study suggests. UK researchers
have identified markers on the surface of human sperm which prevent
them being attacked by the female immune system. The markers are
also found on cancer cells and HIV-infected blood cells and may
help the diseases to take hold.
Read
more. Source: BBC |
'Burned foods' linked to cancers
(Dec 3, 2007)
Women who eat crisps or chips every day may double their chances
of ovarian or womb cancer, say scientists. The fears surround
acrylamides, chemicals produced when you fry, grill or roast a
wide range of foods. Dutch researchers quizzed 120,000 people
on their eating habits, and found that women who ate more acrylamide
appeared more at risk.
Read
more. Source: BBC |
Skin ageing 'reversed' in mice
(Nov 30, 2007)
Scientists have reversed the effects of ageing on the skin of
mice by blocking the action of a specific protein. In two-year
old mice, Californian researchers found that they could rejuvenate
skin to look more youthful. Further analysis published in the
journal Genes and Development showed the skin had the
same genetic profile as the skin of newborn mice.
Read
more. Source: BBC |
Lifespan link to depression drug
(Nov 26, 2007)
An antidepressant drug lengthens tiny worms' lives and offers
hope of humans living longer too, US scientists say. In the study,
detailed in journal Nature, nematode worms were exposed to 88,000
chemicals in turn and mianserin extended lifespan by almost a
third. The drug seems to mimic the effects on the body of the
only known animal long-life regime – virtual starvation.
Read
more. Source: BBC |
Human skin 'reprogrammed' to form stem
cells
(Nov 20, 2007)
At last, a milestone in stem-cell technology has been reached
that could enable patients to be treated with new tissues made
from their own cells. Crucially, the tissues can be generated
without having to extract cells from human embryos, a major ethical
objection that has obstructed stem cell research until now.
Read
more. Source: New Scientist |
Breakthrough in primate cloning
(Nov 14, 2007)
Experts have for the first time created cloned embryos from an
adult monkey – a technical breakthrough that could bring
efficient human cloning a step closer. A team in the US created
dozens of cloned embryos from a 10-year-old male macaque, the
journal Nature reports. This could make it easier to clone human
embryos for use in research.
Read
more. Source: BBC |
Healthy diet 'cuts dementia risk'
(Nov 13, 2007)
More evidence that a diet rich in oily fish and vegetables can
reduce the chances of dementia later in life has been uncovered
by scientists. Studies published in US journals suggested that
a "Mediterranean diet" or long-term beta-carotene supplements
could ward off the illness. Both contain anti-oxidants, which
could protect the brain from damage.
Read
more. Source: BBC |
Vitamin D 'may help slow ageing'
(Nov 8, 2007)
A vitamin made when sunlight hits the skin could help slow down
the ageing of cells and tissues, say researchers. A King's College
London study of more than 2,000 women found those with higher
vitamin D levels showed fewer ageing-related changes in their
DNA. However, the American Journal of Clinical Nutrition study
stops short of proving cause and effect.
Read
more. Source: BBC |
Onions 'cut heart disease risk'
(Nov 4, 2007)
Eating a meal rich in compounds called flavonoids reduces some
early signs of heart disease, research shows. An Institute of
Food Research team focused on one of the compounds, quercetin,
which is found in tea, onions, apples and red wine. The Atherosclerosis
study examined the effect of the compounds produced after quercetin
is broken down by the body.
Read
more. Source: BBC |
The mouse that shook the world
(Nov 2, 2007)
Scientists have been astounded by the creation of a genetically
modified "supermouse" with extraordinary physical abilities –
comparable to the performance of the very best athletes –
raising the prospect that the discovery may one day be used to
transform people's capacities. The mouse can run up to six kilometres
(3.7 miles) at a speed of 20 metres per minute for five hours
or more without stopping.
Read
more. Source: The Independent |
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