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Misregulated genes may have big autism role

By Guest PostApril 1, 2013Healthautism, autism cerebral cortex, bank, biochemical exchanges, brain tissue, brains of children, brown university, christianson syndrome, daniel geschwind, endosomes of cells, epilepsy, eric morrow, genetic pathway, human behavior, irinia voineagu, karoly mirnics, key molecular player, krassimira garbett, los angeles, messenger rna, misregulated genes, mutations, nhe6, nhe9, proteins, raw data, statistical analysis, university of california, vanderbilt university

A genetic pathway involving proteins in the endosomes of cells appears to be misregulated in the brains of children with autism, according to a newly published statistical analysis in the journal Molecular Psychiatry. Previously the genes were shown to cause rare forms of the disease but the new study suggests they have a wider role.

PROVIDENCE, R.I. [Brown University] — A new study finds that two genes individually associated with rare autism-related disorders are also jointly linked to more general forms of autism. The finding suggests a new genetic pathway to investigate in general autism research. (more…)

Multi-Toxin Biotech Crops Not Silver Bullets, UA Scientists Warn

By Guest PostMarch 31, 2013Naturebiotech crops, bt crops, crop protecting toxins

The popular new strategy of planting genetically engineered crops that make two or more toxins to fend off insect pests rests on assumptions that don’t always apply, UA researchers have discovered. Their study helps explain why one major pest is evolving resistance much faster than predicted and offers ideas for more sustainable pest control.

A strategy widely used to prevent pests from quickly adapting to crop-protecting toxins may fail in some cases unless better preventive actions are taken, suggests new research by University of Arizona entomologists published in the Proceedings of the National Academy of Sciences. (more…)

‘Sideline quasars’ helped to stifle early galaxy formation, says CU study

By Guest PostMarch 31, 2013Scienceearly galaxy formation, helium reionization era, intergalactic helium, sideline quasars

University of Colorado Boulder astronomers targeting one of the brightest quasars glowing in the universe some 11 billion years ago say “sideline quasars” likely teamed up with it to heat abundant helium gas billions of years ago, preventing small galaxy formation. (more…)

Endangered Lemurs’ Genomes Sequenced

By Guest PostMarch 31, 2013Natureaakrosh ratan, african agriculturalists, anthropologist, aquarium, aye aye populations, aye ayes, biologist, dna samples, ecological niche, edward louis, endangered lemur, european descent, forest habitats, fragmentation, Galaxy, genetically distinct, genome, george perry, henry doorly zoo, human dna sequence, human genetic diversity, loss, Madagascar, madagascar biodiversity, national science foundation, omaha, open source, oscar bedoya reina, penn state university, population, regions of madagascar, richard burhans, sequence, simon malcomber, software, southeast asian, stephan schuster, type of lemur, webb miller, woodpecker

Three populations of aye-ayes on Madagascar studied

For the first time, the complete genomes of three populations of aye-ayes–a type of lemur–have been sequenced and analyzed.

The results of the genome-sequence analyses are published this week in the journal Proceedings of the National Academy of Sciences (PNAS). (more…)

Men May Have Natural Aversion to Adultery with Friends’ Wives, Says MU Researcher

By Guest PostMarch 31, 2013Healthdangers of adultery, girl next door, marital partner, propositions for adultery, sexual partner, testosterone level

Findings about testosterone levels illuminate how humans evolved to form alliances

COLUMBIA, Mo. – After outgrowing teenage infatuations with the girl next door, adult males seem to be biologically designed to avoid amorous attractions to the wife next door, according to a University of Missouri study that found adult males’ testosterone levels dropped when they were interacting with the marital partner of a close friend. Understanding the biological mechanisms that keep men from constantly competing for each others’ wives may shed light on how people manage to cooperate on the levels of neighborhoods, cities and even globally. (more…)

Study Shows How Vitamin E Can Help Prevent Cancer

By Guest PostMarch 30, 2013Healthakt, anti cancer effect, anti cancer property, cancer cell survival, cancer prevention, chemical analysis, ching shih chen, enzyme, formulation, gujarat, hao chieh chiu, India, mutation, naval kapuriya, optimize, phlpp1, prevent cancer, protein, pten gene, saurashtra university, tocopherols, treatment, tumor cell death, vitamin e

COLUMBUS, Ohio – Researchers have identified an elusive anti-cancer property of vitamin E that has long been presumed to exist, but difficult to find.

Many animal studies have suggested that vitamin E could prevent cancer, but human clinical trials following up on those findings have not shown the same benefits. (more…)

True colors of some fossil feathers now in doubt

By Guest PostMarch 30, 2013Naturedinosaur feather colors, feathered dinosaurs, fossil feather colour, fossil feathers, melanosomes

Geological processes can affect evidence of the original colors of fossil feathers, according to new research by Yale University scientists, who said some previous reconstructions of fossil bird and dinosaur feather colors may now merit revision. (more…)

Power of integrity

By Guest PostMarch 30, 2013Economybarbados group, efficiency, eugene fama, fortune magazine, harvard university, hidden moonwalking bear, hidden power, hutchinson lecture, michael jensen, normative virtues, positive theory, power of integrity, productivity, robert merton, university of chicago, university of delaware, veil of invisibility, violation

Hutchinson Lecture features financial economics expert Jensen

It can be easy to miss what’s right in front of you, said Michael Jensen as he shared an awareness test video of basketball players and a “hidden” moonwalking bear in the opening of the 23rd annual Hutchinson Lecture last week at the University of Delaware.

“In effect, integrity is the unforeseen bear in our lives and my intention is to shift the parts of our world group, our frames of reference, relevant to our view of integrity so that we see it differently, in fact as it is, or much closer to what it is,” said Jensen, who presented “The Hidden Power of Integrity and Access to Vast Increases in Performance.” (more…)

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