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Science News for December 7, 2005


Physicists demonstrate storage and retrieval of single photons between remote memories

Researchers at Georgia Institute of Technology have successfully stored and retrieved single photons between remote quantum memories composed of rubidium atoms. This breakthrough demonstrates the storage of light-based information in matter, a necessary step for transmitting quantum information long distances through optical fibers.

Similar stem cells in insect and human gut

Researchers have discovered that adult fruitflies have the same stem cells controlling cell regulation in their gut as humans do. This finding is significant for understanding digestive disorders, including some cancers, and developing cures. The similarity between insect and human gut stem cells suggests a common evolutionary origin.

TLR4 gene found to protect against tumor development

Researchers at the National Institute of Environmental Health Sciences discovered that the TLR4 gene plays a critical role in protecting against tumor development and chronic inflammation. This finding suggests targeting the innate immune system may be a useful tool in fighting various human diseases, including cancer.

SourceNIH/National Institute of Environmental Health Sciences·JournalJNCI Journal of the National Cancer Institute·DateDec 7, 2005

A Jekyll-and-Hyde enzyme's role in Alzheimer's

Researchers discovered that a Jekyll-and-Hyde enzyme plays a crucial role in Alzheimer's disease. Transient production of the enzyme p25 enhances learning and memory, whereas chronic expression impairs these cognitive functions. The study uses mice to demonstrate the dual effects of p25 on neural mechanisms.

SourceCell Press·JournalNeuron·DateDec 7, 2005

Acne, milk and the iodine connection

Researcher Harvey Arbesman links acne and dairy products to the presence of iodine in milk. Studies have shown significant iodine levels in various countries' dairy products. Iodine intake has been linked to acne exacerbation since the 1960s.

SourceUniversity at Buffalo·JournalJournal of the American Academy of Dermatology·DateDec 7, 2005

Gene loops

Researchers at Cold Spring Harbor Laboratory have identified a new mechanism for gene regulation known as 'gene loops', which play a crucial role in controlling the expression of genes. This discovery has significant implications for our understanding of gene function and regulation.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateDec 7, 2005