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Science News for September 21, 2006


Pregnant prehistoric fossil offers clues to past

Scientists have named a new species of ancient marine reptile, Maiaspondylus lindoei, and discovered pregnant embryos in its fossil, marking the most recent record of a live birth in an ichthyosaur. The findings provide valuable insights into the evolution and extinction of these aquatic animals.

SourceUniversity of Alberta·JournalPalaeontology·DateSep 21, 2006

JCI table of contents: September 21, 2006

Researchers have identified calcineurin as essential for complete lung development, and its absence led to respiratory problems in mice. A new model of human placental development also sheds light on the complex process of placentation, while a study on thyroid structures reveals that mature T cells trigger their formation.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 21, 2006

Watching DNA repair in real time

Direct observations of DNA are giving new insights into genetic material copying and repair processes, revealing how enzymes like RecA assemble into filaments. The findings have implications for understanding breast cancer risk and future studies on single enzymes at work unwinding DNA strands.

Lighting up the heart

Researchers at University of Bristol have made a major breakthrough in measuring energy levels inside living heart cells, real-time. This could lead to better understanding of heart disease and improved recovery of the heart during cardiac surgery or after a heart attack.

SourceUniversity of Bristol·JournalJournal of Biological Chemistry·DateSep 21, 2006

Calcineurin helps newborns breathe easy

In a study published in JCI Journals, researchers found that calcineurin is essential for complete lung development in mice. Mice lacking calcineurin function died shortly after birth due to lung failure.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 21, 2006

A better diet through online shopping?

Researchers found that tailored dietary advice delivered through an internet shopping system led to participants buying foods lower in saturated fat. This study demonstrates the potential of low-cost technologies to motivate users to change their behavior.

SourcePLOS·JournalPLOS Clinical Trials·DateSep 21, 2006

Video games: Medicine for the body

The Federation of American Scientists has developed a new educational video game called Immune Attack, which engages students in learning about immunology concepts. The game features a first-person strategy game where immune cells face off against bacterial and viral infections, aiming to make learning fun and exciting.