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Science News for July 18, 1997


UT-Houston Researchers Probe Mechanism Behind Heartbeat

Researchers have identified key features of cardiac troponin C, a protein that regulates muscle contraction. The study's findings may lead to the development of new therapies for patients with congestive heart failure, by targeting calcium binding to regulatory proteins.

SourceUniversity of Texas Health Science Center at Houston·JournalJournal of Biological Chemistry·DateJul 18, 1997

Identification Of The Gene Causing Griscelli Disease

Researchers have identified the genetic link to Griscelli disease, a rare autosomal recessive disorder characterized by partial albinism and immunologic abnormalities. The gene responsible for the condition is myosin-5a, which plays a crucial role in organelle transport within cells.

SourceFrench National Institute for Health and Medical Research (INSERM)·JournalNature Genetics·DateJul 18, 1997
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Messenger RNA Localization In Yeast Yields New Clues On Development

A new study in Saccharomyces cerevisiae, also known as Brewer's yeast, indicates that mRNA localization regulates differential gene expression in the organism. The localization of a protein called ASH1 to the tip of budding daughter cells controls its expression.

SourceAlbert Einstein College of Medicine·JournalScience·DateJul 18, 1997

Penn Researchers Prove Smoking Increases Risk Of Brain Complication

A study published in the Journal of Neurosurgery found a significant link between smoking and cerebral blood-vessel damage. Smokers are nearly five times more likely to develop vasospasm, a violent constriction of arterial walls that can lead to stroke-like symptoms.

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Neurosurgery·DateJul 18, 1997