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Science News Archive 2005 - Page 76


Page 76 of 165

Insulin pulses keep the liver lean

New study reveals that acute insulin pulses limit fat synthesis in the liver by activating a key molecule called CEACAM1. Regular periods of fasting between meals help maintain a healthy liver by allowing insulin levels to fluctuate.

SourceCell Press·JournalCell Metabolism·DateJul 19, 2005

Micro-molecule plays big role in birth defects

Scientists with the UF Genetics Institute found that eliminating microRNAs from specific tissues can reveal their vital role in healthy development. The technique may provide insight into human birth defects and has potential applications in studying the function and malfunction of microRNAs, a crucial part of human gene expression.

SourceUniversity of Florida·JournalProceedings of the National Academy of Sciences·DateJul 19, 2005

Female adolescents trendsetters in teen talk

A study by Professor Sali Tagliamonte found that female adolescents tend to use words like, just, and so more frequently in their conversations as they get older. This language change occurs earlier than in males, with 15- and 16-year-old females using the word 'like' most frequently.

SourceUniversity of Toronto·JournalJournal of Pragmatics·DateJul 18, 2005

PTEN, TSC2, and tumorigenesis

Researchers investigated the roles of PTEN and TSC2 in tumorigenesis and found that TSC2 can suppress specific tumors caused by Pten heterozygosity. However, PTEN is haploinsufficient for repression of carcinogenesis resulting from Tsc2 heterozygosity.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateJul 18, 2005

Bring home the bacon

Research by Suraj Commuri and James Gentry found that women earning more than their spouses do not simultaneously earn domestic power, despite previous theories suggesting a shift in decision-making authority. The study highlights the need for further examination of household forms and consumption decisions influenced by factors such a...

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateJul 18, 2005

Does the language gender system of English and Spanish affect consumers' perception of brands?

This study examines how language gender systems impact brand attitudes and evaluations. In Spanish, consistent formal markers enhance brand recall, while semantic associations drive brand evaluation. In English, formal cues determine initial brand name gender, but congruent semantic associations improve brand evaluations and recall.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateJul 18, 2005

Prevalence of infection in a population can shape parasite virulence

Researchers found that parasite costs and virulence depend on the infection status of competitors, with infected individuals doing better when paired with an infected competitor. High prevalence of infection in a population means healthy larvae face less competition, leading to improved development and survival.

SourcePLOS·JournalPLOS Biology·DateJul 18, 2005