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Genes and obesity: Fast food isn’t only culprit in expanding waistlines — DNA is also to blame

By Guest PostJanuary 19, 2013Healthadipose, bmi, body fat response, body mass index, brian parks, cancer, control, degree of obesity, diverse mouse population, DNA, elin org, elizabeth nam, emrah kostem, environmental conditions, environmental factors, epidemic, fast food diet, fat, fat tissue, frode norheim, genetic factor, genetics, global gene expression, heart disease, high calorie diets, inbred strains, intestinal bacteria, intestinal flora, jake lusis, level, metabolic response, mice, modeling, obesity traits, sedentary lifestyles, strains, sugar, type 2 diabetes, ucla, weight gain

Researchers at UCLA say it’s not just what you eat that makes those pants tighter — it’s also genetics. In a new study, scientists discovered that body-fat responses to a typical fast-food diet are determined in large part by genetic factors, and they have identified several genes they say may control those responses.

The study is the first of its kind to detail metabolic responses to a high-fat, high-sugar diet in a large and diverse mouse population under defined environmental conditions, modeling closely what is likely to occur in human populations. The researchers found that the amount of food consumed contributed only modestly to the degree of obesity. (more…)

Searching for the Lost Royal City of Nubia in Northern Sudan

By Guest PostJanuary 18, 2013Culture, Scienceel kurru, kings of nubia, kush, lost royal city, northern sudan, nubia, nubian capital, nubian pyramid

ANN ARBOR — Geoff Emberling is doing what few archaeologists do anymore in a world that has been worked over pretty well by picks, trowels and shovels. He’s searching for a lost royal city. (more…)

Born to Lead? Leadership Can be an Inherited Trait, Study Finds

By Guest PostJanuary 18, 2013Politics, Scienceassessment, Barack Obama, born to lead, child, de neve, democratic primary, dna sequence, economic, framingham heart study, garfld986, gene, genetic difference, genetic discrimination, genetic trait, genotype, harvard, hillary clinton, inherited trait, jan emmanuel, leadership, leadership behaviour, leadership position, leadership skills, learning environment, new hampshire, nyu, political outcomes, professor john antonakis, rs4950, selection, tendency, ucl, unite for change, united states, university college london, university of california, variation, workplace

Genetic differences are significantly associated with the likelihood that people take on managerial responsibilities, according to new research from UCL (University College London).

The study, published online in Leadership Quarterly, is the first to identify a specific DNA sequence associated with the tendency for individuals to occupy a leadership position. Using a large twin sample, the international research team, which included academics from Harvard, NYU, and the University of California, estimate that a quarter of the observed variation in leadership behaviour between individuals can be explained by genes passed down from their parents. (more…)

Nanopore Sequencing: DNA Prefers to Dive Head First into Nanopores

By Guest PostJanuary 18, 2013Sciencebertrand duplantier, de gennes, derek stein, dna molecules, gelatin molecules, genetic code, mirna mihovilovic, molecule entropy, molecule zipping, molecules of dna, nanopore sequencing, nanopores, nick hagerty, nucleotide base, pierre gilles, polymer network, sensor, solid state nanopores, theory of jello

In the 1960s, Nobel laureate Pierre-Gilles de Gennes postulated that someday researchers could test his theories of polymer networks by observing single molecules. Researchers at Brown observed single molecules of DNA being drawn through nanopores by electrical current and figured out why they most often travel head first.

PROVIDENCE, R.I. [Brown University] — If you want to understand a novel, it helps to start from the beginning rather than trying to pick up the plot from somewhere in the middle. The same goes for analyzing a strand of DNA. The best way to make sense of it is to look at it head to tail.

Luckily, according to a new study by physicists at Brown University, DNA molecules have a convenient tendency to cooperate. (more…)

Credit Card Debt: Younger People Borrow More Heavily and Repay More Slowly, Study Finds

By Guest PostJanuary 18, 2013Economyamericans, borrow, cardholders, credit card, credit card behavior, credit card companies, credit card debt, data, debt level, factor, financial problems, grandparents, life cycle hypothesis, lucia dunn, marital status, minimum payments, minimum payoff rate, monthly payment, ohio economic survey, parents, psychological jolt, repay, sarah jiang, statistical model, younger americans

COLUMBUS, Ohio – Younger Americans not only take on relatively more credit card debt than their elders, but they are also paying it off at a slower rate, according to a first-of-its-kind study.

The findings suggest that younger generations may continue to add credit card debt into their 70s, and die still owing money on their cards.

“If what we found continues to hold true, we may have more elderly people with substantial financial problems in the future,” said Lucia Dunn, co-author of the study and professor of economics at Ohio State University. (more…)

Better Way to Understand Plasmid Cloning from AddGene

By Guest PostJanuary 17, 2013Scienceaddgene, ailments, backbone vector, biologically engineered, chromosomes, circular fragments, cloning process, cloning vital organs, digestion, dna strands, double stranded dna, first successful cloning, gel purification, gene, manipulating genes, medical research, molecular cloning, molecular level, molecule cloning, molly the sheep, non profit repository, original chromosomal dna, pcr, plasmid cloning, plasmid land, plasmids, prolong human life, red, red cloning, repository, restriction enzyme digest, restructure diseases, scottish lambs, sub cloning, vector

Medical research has been studying molecular cloning for centuries. While many remember the Scottish lambs as the first successful cloning, there have been countless medical advances since then. Many of them are not as evident or dramatic as Molly the sheep, they have been blazing the trail for cloning vital organs, DNA strands and chromosomes in hopes of curtailing or even curing the maladies that plague the human race. Plasmids are at the forefront of this research in hopes they can learn how to insert DNA strands and restructure diseases or ailments on a molecular level.

It is difficult to describe what Plasmid is exactly. Plasmid is a biologically engineered DNA strands that are meant to be used in existing organisms as well as creating new ones. There are many aspects of it used in different ways from molecule cloning, manipulating genes or advancing medical research. Plasmids are circular fragments of double-stranded DNA. Plasmids are used in DNA strands and they can be replicated independently of original chromosomal DNA that created them. While they are mainly used for studying purposes at the moment in biological laboratories, they are meant to advance medical research and hopefully be used to prolong human life. (more…)

Bing Brings More of Facebook to Search

By Guest PostJanuary 17, 2013Technologybing, coachella, decision, Facebook, facebook privacy settings, festival, foursquare, Google, klout, msft, nasdaq, pictures, posts, quora, search, search engine, social search, social sidebar, trip, Twitter

Bing is the only search engine to bring your Facebook friends into your search. </object></div> <p><mce:script type=”text/javascript”><!– document.write(“<script type=’text/javascript’ src=’” + (window.location.protocol) + “//c.microsoft.com/ms.js’><\/script>”); // –></mce:script></p> <p><span style=”color: #000000;” _mce_style=”color: #000000;”><strong>REDMOND, Wash. — Jan. 17, 2013 —</strong> With every search that people do, Bing believes there is a person out there who can help you […]

NASA Ozone Study May Benefit Air Standards, Climate

By Guest PostJanuary 17, 2013Environmentchemical emissions, global warming, greenhouse warming, ozone forming chemicals, ozone study

PASADENA, Calif. – A new NASA-led study finds that when it comes to combating global warming caused by emissions of ozone-forming chemicals, location matters. (more…)

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