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Science News for June 23, 2004


Mutant mice lead to memory insights

Researchers discover that drugs already being tested for cancer and Huntington's disease may help restore some memory capability to patients with RTS, a heritable disorder characterized by mental and growth retardation. The study found that restoring acetylation activity alleviates memory problems in mutant mice.

SourceCell Press·JournalNeuron·DateJun 23, 2004

Evidence for fat hormone target in brain

Researchers found that leptin signaling is necessary for regulating body weight homeostasis in mice. The study revealed that leptin receptors on POMC neurons play a key role in this process, and their absence leads to increased fat mass.

SourceCell Press·JournalNeuron·DateJun 23, 2004

AGU journal highlights - 23 June 2004

Scientists explore new explanations for auroral lights, elephant communication, and the impact of volcanic eruptions on global climate change. Researchers analyze electron interactions with nitric oxide molecules and propose a new method for monitoring small-scale flow variations in the Earth-space boundary.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateJun 23, 2004

Anorexia nervosa often chronic, study finds

A study published in Psychological Medicine found that 35% of women with anorexia nervosa relapsed into the disorder within two years of leaving the hospital. The mean time before relapse was 18 months, highlighting the need for improved relapse prevention treatments.

SourceUniversity of Toronto·JournalPsychological Medicine·DateJun 23, 2004