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Science News Archive January 2014 - Page 5


Page 5 of 28

Converting adult human cells to hair-follicle-generating stem cells

Researchers at the University of Pennsylvania School of Medicine have successfully converted adult human cells into epithelial stem cells that can regenerate human skin and hair follicles. The breakthrough could potentially enable hair regeneration in people, but further work is needed to address other cell types involved in hair growth.

SourceUniversity of Pennsylvania School of Medicine·JournalNature Communications·DateJan 28, 2014

Tropics are main source of global mammal diversity

A recent study reveals that the tropics are the main source of global mammal diversity, driven by higher speciation rates and lower extinction rates. The research, published in PLOS Biology, suggests that tropical regions have been a continuous source of biodiversity, allowing for repeated colonization of temperate regions.

SourcePLOS·JournalPLOS Biology·DateJan 28, 2014

Research into 'silent' adrenal tumors detected by CT scans provides much-needed guidance for clinical management

A new study in The Lancet Diabetes & Endocrinology assesses the progression of 'silent' adrenal tumours (adrenal incidentalomas) and their impact on cardiovascular events and death. The results show that some tumours became more active over time, increasing cardiovascular risk, especially in patients whose tumours secrete cortisol.

SourceThe Lancet_DELETED·JournalThe Lancet Diabetes & Endocrinology·DateJan 28, 2014

H.M.'s brain yields new evidence

A 3D model of Henry Molaison's (H.M.) brain has been created, providing new insight into the neurological basis of his severe amnesia. The study reveals a small lesion in the left orbitofrontal cortex that was likely created during H.M.'s 1953 surgery, which may help scientists understand the consequences of similar operations today.

SourceUniversity of California - San Diego·JournalNature Communications·DateJan 28, 2014

Measuring waist circumference would improve the detection of children and adolescents with cardiometabolic risk

A study published in PLOS ONE found that including waist circumference measurements in clinical practice can help identify children and adolescents at higher risk for cardiovascular disease and type 2 diabetes. In Spanish children aged 6-17, 21.3% have abdominal obesity, with traditional screening methods missing 70% of cases.

UH researchers create new flexible, transparent conductor

University of Houston researchers have developed a new stretchable and transparent electrical conductor that could bring bendable cell phones and foldable flat-screen TVs closer to reality. The gold nanomesh electrodes demonstrate good electrical conductivity, transparency, and flexibility, with potential applications for biomedical de...

SourceUniversity of Houston·JournalNature Communications·DateJan 28, 2014

Certain probiotics could help women lose weight

A recent study found that consuming certain probiotics from the Lactobacillus rhamnosus family can lead to significant weight loss in women, with an average loss of 4.4 kg over 12 weeks. The probiotics also helped maintain weight loss over a longer period and reduced appetite-regulating hormone leptin levels.

SourceUniversité Laval·JournalBritish Journal Of Nutrition·DateJan 28, 2014

Agent Orange linked to skin cancer risk, reports Plastic and Reconstructive Surgery

A recent study published in Plastic and Reconstructive Surgery suggests that Vietnam War veterans with prior exposure to Agent Orange may be at increased risk for non-melanoma invasive skin cancer. The study found that 51% of TCDD-exposed veterans developed NMISC, with those actively spraying Agent Orange having a rate of 73%.

SourceWolters Kluwer Health·JournalPlastic & Reconstructive Surgery·DateJan 28, 2014

Resetting the metabolic clock

Researchers at UC Santa Barbara gained insight into factors affecting mammalian circadian oscillations, which could lend themselves to circadian regulation and pharmacological control. Their work suggests that high-amplitude circadian rhythms are associated with a lower risk of diseases like diabetes and obesity.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateJan 28, 2014

Study on DSM-5 shows effects on autism diagnosis and prevalence

A new study found that combining autism with social communication disorder (SCD) would decrease estimated prevalence under DSM-5 criteria. The researchers discovered that 83% of children diagnosed with autism under the DSM-IV would also receive the diagnosis under DSM-5, while 14% were diagnosed with SCD.

SourceAutism Speaks·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateJan 27, 2014

Put a plastic bag in your tank

Researchers in India have developed a low-temperature process to convert LDPE into liquid fuel, releasing carbon-rich molecules that are similar to conventional petrochemical fuels. The process uses kaolin catalyst and can produce up to 700 grams of liquid fuel per kilogram of waste plastic.

SourceInderscience Publishers·JournalInternational Journal of Environment and Waste Management·DateJan 27, 2014

How did we get 4 limbs? Because we have a belly

Researchers propose that fins and limbs develop from the area surrounding the belly due to the interaction of ectodermal tissues with mesoderm layers. This model, published in Evolution & Development, suggests that epigenetic factors play a crucial role in shaping embryonic development and ultimately giving rise to paired appendages.

SourceUniversity of Vienna·JournalEvolution & Development·DateJan 27, 2014

U of Tennessee research finds link between alcohol use and domestic violence

Studies conducted by University of Tennessee researchers found a strong link between alcohol consumption and increased risk of physical, psychological, and sexual abuse in intimate partner relationships. In contrast, marijuana use was not associated with an increased risk of violence. The findings suggest that domestic violence prevent...

SourceUniversity of Tennessee at Knoxville·JournalPsychology of Addictive Behaviors·DateJan 27, 2014