Showing posts with label Health. Show all posts
Showing posts with label Health. Show all posts

Thursday, May 5, 2011

Remain happy forever!!! Gene for the Happiness have been identified


If you wants to remain happy forver in your life now it seems it is possible. According to the TG daily,Scientists have for the first time discovered a 'happiness gene', which works by regulating the transport of serotonin in the brain.

It forms the first direct link between a specific genetic condition and a person’s happiness, as measured by their satisfaction with life.
Behavioural economist Jan-Emmanuel De Neve of the London School of Economics and Political Science (LSE) examined genetic data from more than 2,500 participants in the US National Longitudinal Study of Adolescent Health, examining which functional variant of the 5-HTT gene they possessed.
This gene helps control serotonin transporters in neuron cell walls, and has a variation, or allele, which can be either long or short. The long version is more efficient, resulting in more serotonin transporters in the cell membrane.
The team asked subjects how satisfied they were with theirlife as a whole. There were five possible answers: very satisfied, satisfied, dissatisfied, very dissatisfied or none of the above.
The results showed that nearly 70 percent of those with the efficient (long-long) version of the gene were either very satisfied or satisfied with their life – compared to just 19 per cent for those with the less efficient short-short form.
Conversely, 26 per cent of those with the short-short allele were dissatisfied, compared with only 20 per cent of those with the long-long variant.
Even possessing one long allele increased the likelihood of being very satisfied with life by 8.5 per cent, the team found.
"It has long been suspected that this gene plays a role in mental health but this is the first study to show that it is instrumental in shaping our individual happiness levels," says De Neve.
“The results of our study suggest a strong link between happiness and this functional variation in the 5-HTT gene."

He points out that other genes - as well as one's life experiences - also influence a person's happiness levels. But, he says, "This finding helps to explain why we each have a unique baseline level of happiness and why some people tend to be naturally happier than others."

Monday, May 2, 2011

China to create alternative to human breast milk

Beijing, April 15 China will soon create dairy products from milk produced by genetically modified cattle and containing most of the nutrients as in human breast milk.
The ministry of agriculture has given the go-ahead to test the "human-like" milk, which will be available in the Chinese market in two years, said Li Ning, a researcher at the State Key Laboratories for Agro-biotechnology at China Agricultural University.
The milk, which cows produced after researchers tweaked their genetic codes, is rich in lactalbumin, lactoferrin, and lysozume - proteins that are found in human breast milk, according to Xinhua.
"Such proteins can be easily absorbed by the human body and can boost the immune system, which is why breastfeeding is always better than using bovine milk and infant formula," said Li.
Though not yet a perfect substitute for breast milk, as it lacks some antibodies and a protein that helps boost babies' intelligence, the milk had a potential for great marketing.
"The milk pumped out by our cattle will be a cheap source for such rare proteins, which are precious components hailed by the pharmaceutical, cosmetic, and food industries," said Li.
Though genetic engineering has been a rising technology, studied by pharmaceutical and biological industries and widely used to mass-produce vaccines and drugs like insulin, food production is yet to gain international recognition.
Similar concerns are present in the Chinese market, as consumers complain about lack of available information about the potential hazards of such food.
"I think the scientists are doing a good thing (by developing genetically-modified milk) as it may help mothers who are unable to breast feed, but I, myself, won't drink such milk just because it contains more nutrients," said a consumer named Tan.
Li Ning said they have highlighted the safety issue in their work, and that no research has yet indicated that such food was detrimental to human health.
The modified milk has reportedly passed the safety test of the Chinese Centre for Disease Prevention and Control, which said the milk "proved more healthy than the conventional one".