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Science News for September 2, 2003


Chicken embryo research tunes into inner ear

Researchers control the development of stem cells in the inner ears of embryonic chickens by introducing new genes, leading to the growth of balance-related hairs instead of sound-detecting ones. This breakthrough could potentially improve our understanding of inner ear disorders and lead to therapies for deafness and vertigo.

SourcePurdue University·JournalDevelopmental Biology·DateSep 2, 2003

New algorithm offers fast and accurate X-ray crystal structure identification

Researchers at the University of Illinois have developed an algorithm that provides fast and accurate structure determination for organic compounds with a center of symmetry. The new approach reformulates the phase problem into an integer programming problem, allowing for rapid solution finding using off-the-shelf optimization software.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalActa Crystallographica Section A·DateSep 2, 2003

Safely achieving tolerance to stem cell transplantation

Researchers developed a costimulatory blockade-based protocol to induce peripheral tolerance in stem cell transplantation. This approach combines donor-specific transfusion and anti-CD154 monoclonal antibody administration to achieve functional HSC populations without myeloablation or GVHD induction.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 2, 2003

Adopting some osteopathic traits might help M.D.s boost their patient communication skills

A study found that osteopathic physicians were more likely to use patients' first names, explain medical conditions, and discuss social and emotional impacts of illnesses. Osteopaths also asked patients more questions about their concerns, while allopaths focused on the scientific basis of treatment.

SourceUniversity of North Carolina at Chapel Hill·JournalThe Journal of the American Osteopathic Association·DateSep 2, 2003

Mouse, stripped of a key gene, resists diabetes

Researchers have discovered an engineered mouse that can eat a high-fat diet without gaining weight or developing diabetes. The mouse lacks the SCD-1 gene, which affects fat production and glucose regulation. As a result, muscle cells are more sensitive to insulin, enabling them to absorb glucose and regulate blood sugar levels.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateSep 2, 2003

Terrible hours and more...

A historic conference at the U.S. Naval Academy brought together experts on underwater rescue and salvage, including survivors of notable submarine accidents like USS SQUALUS and USS TANG. The accounts of these men are now transcribed in a new book that explores some of the most daring undersea missions of the last century.

JCI Table of Contents

A comprehensive study on anthrax lethal toxin reveals that human infection is not caused by septic shock but rather hypoxia-induced liver failure. The findings suggest that existing therapies for cytokine-mediated sepsis will not be effective in treating anthrax, highlighting the need for new approaches to treatment.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 2, 2003