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Science News for February 6, 2014


Intervention in first 1,000 days vital to fulfilling childhood potential

The special issue emphasizes the importance of combining intervention strategies focusing on both nutrition and early learning to support healthy development. The research reveals that 200 million children under five are not reaching their developmental potential due to poverty, nutritional deficiencies, and lack of responsive caregiving.

SourceWiley·JournalAnnals of the New York Academy of Sciences·DateFeb 6, 2014

DNA reveals new clues: Why did mammoths die out?

A new DNA study suggests that the drastic change in vegetation from protein-rich herbs to less nutritious grass may be behind the demise of mammoths and other large mammals. The study shows that the mammoth steppe was dominated by herbs during the last ice age, which may have led to a decline in animal populations.

SourceLund University·JournalNature·DateFeb 6, 2014

Histones may hold the key to the generation of totipotent stem cells

Researchers from RIKEN in Japan have identified a duo of histone proteins, TH2A and TH2B, that dramatically enhance the generation of induced pluripotent stem cells (iPSCs). The study demonstrates that these proteins function as substitutes for two Yamanaka factors and increase iPSC cell generation by twentyfold and speed up the process.

SourceRIKEN·JournalCell Stem Cell·DateFeb 6, 2014

Toxin in seafood causes kidney damage in mice at levels considered safe for consumption

A study by American Society of Nephrology reveals domoic acid, a neurotoxin found in seafood, can harm kidneys even at levels considered safe for consumption. The toxin damages kidneys at concentrations 100 times lower than what causes neurological effects, raising concerns about potential kidney failure and dialysis.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateFeb 6, 2014

Early treatment with AED reduces duration of febrile seizures

A new study published in Epilepsia found that early treatment with antiepileptic drugs (AEDs) significantly reduces the duration of febrile seizures. The research suggests that a standard Emergency Medical Services (EMS) treatment protocol is needed in the US to improve outcomes for children with prolonged seizures. A total of 199 pedi...

SourceWiley·JournalEpilepsia·DateFeb 6, 2014

Avian flu variant stalks Egypt

A new study tracks the spread of an H5N1 variant in Egypt using phylogeography, a technique that combines viral sequence data and geographical information. The study aims to enhance efforts by public health officials to identify viral outbreaks, limit their spread, and inform the public of risks.

SourceArizona State University·JournalBMC Genomics·DateFeb 6, 2014

Two sides of a safety switch

A team of researchers has found a link between chloracne and a molecular switch called Nrf2, which causes skin changes similar to those in dioxin victims. The study suggests that therapeutic targeting of Nrf2 may be problematic due to its role in detoxification.

SourceETH Zurich·JournalEMBO Molecular Medicine·DateFeb 6, 2014

First large-scale study of whole-genome testing helps identify best treatment for women with advanced breast cancer

A large-scale study of whole-genome testing has identified a unique treatment approach for women with advanced breast cancer, targeting genomic alterations in their tumors. The study found that around half of patients had targetable genomic alterations, and 39% had rare alterations, many of which no treatments currently exist.

SourceThe Lancet_DELETED·JournalThe Lancet Oncology·DateFeb 6, 2014

Prickly protein

Researchers discovered a genetic mechanism controlling the production of a large spike-like protein on staph bacteria that prevents clumping and reduces disease-causing ability. The study suggests targeting clumping behavior for therapy, potentially reducing staph infections.

SourceUniversity of Iowa Health Care·JournalPLOS Pathogens·DateFeb 6, 2014

What's love got to do with it?

A groundbreaking study published by George Mason University and Indiana University found that nearly all (92.6 percent) gay and bisexual men reported being in love with their partner during a recent sexual event. The study also revealed that men who were in love with their partners experienced sex as more pleasurable.

SourceGeorge Mason University·JournalArchives of Sexual Behavior·DateFeb 6, 2014

Quick test finds signs of diarrheal disease

Researchers have created a rapid, affordable diagnostic test for cryptosporidiosis using recombinase polymerase amplification (RPA) technique. The test can detect the presence of even one parasite in a sample, with high accuracy rates, and requires minimal equipment.

SourceRice University·JournalAnalytical Chemistry·DateFeb 6, 2014

Gender influences symptoms of genetic disorder

A new study reveals that girls with NF1 are at greater risk of vision loss from brain tumors, while boys are more vulnerable to learning disabilities. The research identifies gender-linked differences in male mice that may help explain these findings.

SourceWashU Medicine·JournalAnnals of Neurology·DateFeb 6, 2014

A microchip for metastasis

MIT researchers create a microfluidic platform that mimics the spread of breast cancer cells into a bonelike environment. The study found that certain molecules, such as CXCL5 and CXCR2, may encourage cancer cell metastasis, potentially leading to new targets for cancer therapy.

SourceMassachusetts Institute of Technology·JournalBiomaterials·DateFeb 6, 2014

Heart health through gut health

A new study published in Nutrition Reviews found that certain probiotics can significantly reduce LDL-cholesterol and improve other coronary heart disease risk factors. L. reuteri NCIMB 30242 (Cardioviva) was found to be the most effective, with results similar to those of existing therapeutic lifestyle change dietary options.

SourceFoodMinds LLC·JournalNutrition Reviews·DateFeb 6, 2014

Birds of a different color

Researchers at the University of Utah identified three key genes controlling feather color in domestic rock pigeons, which also influence human skin pigmentation. The study found that variations in these genes result in diverse feather colors, with specific combinations explaining a significant amount of color variation across pigeon b...

SourceUniversity of Utah·JournalCurrent Biology·DateFeb 6, 2014

Scientific review points to supplement users engaging in a pattern of healthy habits

A new review published in Nutrition Journal found that dietary supplement users engage in various healthy habits, such as consuming healthier diets and exercising regularly. The study also showed that supplement users tend to make better food choices and incorporate supplements into their lifestyle as part of a broader focus on wellness.

SourceCouncil for Responsible Nutrition·JournalNutrition Journal·DateFeb 6, 2014

Columbia study finds hospitals don't follow infection prevention rules

A new study from Columbia University found that hospitals are not following evidence-based guidelines for preventing health care-associated infections. Despite decades of research, approximately one in 10 hospitals lack checklists to prevent certain infections, and these checklists are followed only half the time. The study's findings ...

SourceColumbia University Irving Medical Center·JournalAmerican Journal of Infection Control·DateFeb 6, 2014

UI researchers evaluate best weather forecasting models

UI researchers assessed global numerical weather prediction models' performance in predicting severe flooding in Boulder, Colo. in September 2013. The study found that while models generally performed well, there is room for improvement in capturing persistent rainfall and accurately forecasting flood events.

SourceUniversity of Iowa·JournalGeophysical Research Letters·DateFeb 6, 2014