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Balancing act at chromosome ends

Researchers have identified a novel protein, MKRN1, that regulates telomerase activity and maintains cellular telomere lengths. Increasing MKRN1 levels in cells promotes the degradation of telomerase enzyme hTERT, leading to decreased telomerase activity and shorter telomeres.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMar 31, 2005

The birth of a beak

USC researchers detail process of beak formation in journal Science, identifying BMP4 as a major mediator of beak shape. The study sheds light on how different bird species develop uniquely shaped beaks reflecting their ecological niches.

Purdue researchers discover basis for biological clock

Researchers at Purdue University have discovered a single protein that sets the length of periods of activity and inactivity within cells, known as the biological clock. The discovery has significant implications for medicine, including minimizing jet lag and determining optimal cancer treatment timing.

SourcePurdue University·JournalBiochemistry·DateJan 6, 2003

Study reveals clues to brain development

Researchers at Cold Spring Harbor Laboratory found that visual stimulation causes neurons to sprout new branches, a process that requires increased activity of certain proteins and decreased activity of others. The study provides insights into how visual stimulation guides the development of normal brain architecture.

SourceCold Spring Harbor Laboratory·JournalNature·DateOct 2, 2002

One gene, two important proteins

Researchers found that a single fly gene encodes two proteins with opposing actions: one inhibits the other's activity. This discovery provides insight into complex biological phenomena and may lead to novel treatments for human cancers, particularly those with overactive STAT proteins. The study highlights the importance of considerin...

SourceRockefeller University·JournalGenes & Development·DateSep 14, 2002

Making sense of Marfan syndrome

A recent study reveals that mutations in the FBN1 gene can cause Marfan syndrome by disrupting an exonic splicing enhancer, leading to exon skipping and compromised fibrillin protein activity. This understanding may help explain other human diseases associated with exon skipping.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateJul 14, 2002

Protein tied to Alzheimer’s also plays key role in honeybees

Researchers found that forager bees have lower activity levels of a protein called acetylcholinesterase (AChE) in their brains, which may lead to enhanced cognitive performance. A study led by Gene E. Robinson at the University of Illinois showed that reducing AChE activity improved learning abilities in foragers.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Molecular Neuroscience·DateSep 28, 2001

Stalking a Parkinson’s protein

Researchers have discovered a crucial genetic element that regulates alpha-synuclein protein activity, which is involved in both inherited and non-inherited forms of Parkinson's disease. By identifying this element, scientists hope to gain insights into the underlying mechanisms of the devastating disease.

SourceCold Spring Harbor Laboratory·JournalGenome Research·DateJan 11, 2001

A new view of visual system development

Researchers at Duke University have discovered that spontaneous neural activity plays a key role in organizing the visual cortex, contradicting current theories on ocular dominance. The study used young ferrets with closed eyes to record brain activity patterns and found that input from one eye drives the entire system.

Working Out The Risk For Stroke

A recent study by the American Heart Association found that physical activity significantly reduces the risk of stroke in individuals aged 45-64. Those who were more active at work had a 49% lower risk, while those with high levels of sports activity had a 23% reduced risk.