Mitochondria are the body's energy producers, the power stations inside our cells. Researchers at the University of Gothenburg, Sweden, have now identified a group of mitochondrial proteins, the absence of which allows other protein groups to stabilise the genome. This could delay the onset of age-related diseases and increase lifespan.
- A Roy
from Bookmarklet
Hi Avi, I'm a PhD student at Loughborough University in the UK. I found your name on the list of people who follow Navigenics on Twitter, and followed a link in your profile to your blog. I was wondering if you'd be willing to fill in a survey for my PhD research, it's for people who have either bought a genetic test from a company like Navigenics, or are thinking of doing so. There's...
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- Corin Egglestone
"Far from being just an accessory, mobile phones are starting to be used to collect data in an increasing number of disciplines. Roberta Kwok looks into their potential. Roberta Kwok Download a PDF of this story Download a PDF of this story When Martin Lukac felt a small earthquake rattle his Los Angeles apartment, he immediately thought of the mobile phone lying on his desk. Two weeks earlier, he had programmed the phone to capture readings from its built-in accelerometer, a sensor originally intended to support features such as games. Now, Lukac — a doctoral student in computer science at the University of California, Los Angeles — transferred the phone's data to his computer and saw the readings plotted as a series of tell-tale spikes. Success! His phone had become a mobile seismometer. Such moments are happening more and more often these days, as researchers seek out innovative ways to exploit mobile phones. The opportunities are tantalizing. Phones are increasingly being equipped...
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- A Roy
from Bookmarklet
Yup absolutely no one is horny in India, as seen by the reproductive fecundity. Also, it's great when India's 'laws' are in agreement with freedom loving and humanitarian Middle East countries. Brilliant!
- A Roy
Mice artificially produced with two sets of female genomes have an increased average lifespan of 28%, along with other benefits - http://www.fightaging.org/archive...
"Researchers look for root causes of the longevity enhancement produced by eliminating the male contribution to the mouse genome: "A recent study by Kawahara and Kono (2010) reports that mice artificially produced with two sets of female genomes have an increased average lifespan of 28%. Moreover, these animals exhibit a smaller body size, a trait also observed in several other long-lived mouse models. One hypothesis is that alterations in the expression of paternally methylated imprinted genes are responsible for the life-extension of bi-maternal mice. Considering the similarities in postnatal growth retardation between mice with mutations in the Rasgrf1 imprinted gene and bi-maternal mice, Rasgrf1 is the most likely culprit for the low body weight and extended lifespan of bi-maternal mice. Rasgrf1 is a neuronal guanine-nucleotide exchange factor that induces Ras signaling in a calcium-dependent manner and has been implicated in learning and memory. Like other long-lived mouse...
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- A Roy
from Bookmarklet
The first ever footage of a person being cryonically frozen is to be broadcast in a Channel Five documentary that will follow a woman who is terminally ill with cancer before and after her death. “We’re really very proud of what we have achieved with this programme – the human and emotional journey we captured with one contributor in particular, filming prior to her death and the subsequent process of her preservation, in conjunction with the amazing scientific and ethical questions raised by this subject, makes for one of our most challenging and fascinating productions to date. Filming was earlier this year, according the Alcor newsletter; I’m hoping this turns out to have more of a respectful positioning than the Guardian article suggests.” Cryonics is an essential insurance policy; the best and only option available to all too many people who will die before the onset of meaningful healthy life extension technologies.
- A Roy
from Bookmarklet
Chinese researchers found that fetal DNA floating in the mother's blood contains the entire fetal genome and can reveal a number of genetic and chromosomal disorders in the fetus. They used the method on a couple undergoing prenatal diagnosis for a type of genetic anemia called beta-thalassemia. The results showed that the fetus had inherited the beta-thalassemia mutation from the father and a normal gene from the mother, meaning the fetus was a carrier of the disease.
- A Roy
from Bookmarklet
As in humans, the actions and reactions of male and female fruitflies during courtship are quite distinct. The differences seem to lie in gender-specific neural interpretations of the same sensory signals.
- A Roy
from Bookmarklet
Is a vast undersea grid bringing wind-generated electricity from the North Sea to Europe a feasible proposition or an overpriced fantasy?
- A Roy
from Bookmarklet
The idea that life boils down to chemistry is being usurped by a much more ambitious idea, says two of the world's leading biophysicists
- A Roy
from Bookmarklet
Aging and the accumulation of misfolded proteins, and how heat-shock proteins can help: Shock and Age via The Scientist - http://www.the-scientist.com/2010...
"The accumulation of misfolded protein marks the accrual of years as the body ages. Could heat shock proteins be used to reduce the effects of aging and diminish the risk of disease by untangling improperly folded proteins?"
- A Roy
from Bookmarklet
Comparisons of the scientific prowess of countries frequently begin with spending. One measure of this is GERD, gross domestic expenditure on R&D. Globally, GERD amounted to $1.15 trillion in 2007 (the last year the UNESCO report measures). That was up 45% compared with 2002. Moreover, in those five years Asia’s share of the total rose from 27% to 32%.
- A Roy
from Bookmarklet
"Reporting in the journal Science, Paul Kubes and colleagues filmed immune cells called neutrophils finding their way to a mouse's wounded liver. The researchers wanted to understand how neutrophils find injuries when bacteria aren't around to signal the damage."
- A Roy
from Bookmarklet
"Lichens grow practically everywhere, but they have been neglected by scientists for years, says James Lendemer, a lichenologist with New York Botanical Garden. Lendemer took Science Friday on a trip to the Tannersville Cranberry Bog in Pennsylvania to track down these misunderstood creatures"
- A Roy
from Bookmarklet
"older white Americans are sicker than their counterparts in the United Kingdom but they still manage to live as long as the Brits"
- A Roy
from Bookmarklet
Yup, you are correct. According to this short article the researchers left out minorities in both populations in order to avoid statistical analysis complication. I haven't read the journal article, so do not know the validity of their argument.
- A Roy
Older white Americans do tend to get better care, but that's at the expense of the less fortunate, less white Americans left out of that study. Instead of subsidizing the care of the poor as in the UK, we're subsidizing the unhealthy lifestyles of the relatively more wealthy. Interesting this would come out now, just as a bunch of wealthy white American politicians have announced that one of their policy priorities is to revoke coverage from the poor. I don't buy their explanation, in other words ;-)
- Mr. Gunn
from YouFeed
Americans will keep growing fatter until 42 percent of the nation is considered obese, and having fat friends is part of the problem, researchers said on Thursday.
- A Roy
from Bookmarklet
BioLabeler extracts UMLS concepts from Biomedical texts such as scientific paper abstracts, experiments descriptions or medical notes and can be use to automatically curate and annotate BioMedical Literature or to index large documents databases and improve searches or discover relationships between them
- A Roy
More than 22 percent of Americans have arthritis, with a million new cases being diagnosed every year, according to a new government estimate released on Thursday.
- A Roy
from Bookmarklet
"Francis Collins explains why the NIH is launching a bid to help some doctoral students dramatically reduce the time required to start an independent career."
- A Roy
from Bookmarklet
Are you SERIOUS! Please tell me this is not true :( Answers Research Journal - Creation, Evolution, Scientific Research - Answers Research Journal - http://www.answersingenesis.org/arj
It began on January 9, 2008, with much controversy. Despite such an initial reaction Answers Research Journal has, in just over two years, grown from a humble start with three peer-reviewed papers to a popular destination for serious creation researchers, and as a fast-growing repository of investigations from those on the new frontiers of science. ARJ launched early in 2008 with the goal of bringing the best in creation science to publication as quickly, efficiently, and accurately as possible. This research is not only at the cutting edge, but freely available for everyone. The journal isn’t the first peer-reviewed biblical scientific journal, though critics attacked it as if it were, but it is the first free technical journal to break though the academic censorship with cutting insights not limited by page length or other restrictions common to printed journals. Understandably, the secular world has not been happy. A journal that shows how God’s creation affirms the trustworthiness...
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- A Roy
from Bookmarklet
Diseasome: explore the human disease network. Dataset, interactive map and printable poster of gene-disease relationships. - http://diseasome.eu/index.html
Mouse fibroblasts (L cells) in suspension culture incorporated isolated chloroplasts of spinach and African violets and isolated mitochondria of chicken liver. The organelles resided in the cell cytoplasm and were not contained in vacuoles or digestion vesicles. Green cells divided like normal cells. Green chloroplasts were followed for five cell generations or 5 days, at which time hybrid cells were greatly outnumbered by nongreen progeny cells. The ingested chloroplasts retained their structural integrity as determined by electron microscopy of organelles and hybrid cells and by analysis of photochemical activity and DNA in chloroplasts reisolated from cells after 1 or 2 days in culture.
- A Roy