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Moving targets

Researchers at Caltech used Caenorhabditis elegans to study cell migration, identifying genes that are active during this process. These findings may lead to the development of new drugs that block cell migration, which is linked to tumor formation and metastatic cancer.

SourceCalifornia Institute of Technology·JournalProceedings of the National Academy of Sciences·DateSep 20, 2012

Computer, read my lips

Researchers developed an emotion detector using a genetic algorithm that recognizes six human emotions and neutral expression. The system analyzes upper and lower lip shapes to improve interaction between humans and computers.

SourceInderscience Publishers·JournalInternational Journal of Artificial Intelligence and Soft Computing·DateSep 10, 2012

Ancient genome reveals its secrets

A study led by Svante Pääbo describes the Denisovan genome, revealing genetic variation was extremely low, suggesting a small population that grew quickly. The research documents genetic changes between modern humans and their archaic relatives, including genes associated with brain function and nervous system development.

SourceMax-Planck-Gesellschaft·JournalScience·DateAug 30, 2012

Most mutations come from dad

Researchers found that humans inherit more than three times as many mutations from their fathers as from their mothers. The study also suggests that the mutation rate in fathers doubles with age, while there is no association with mother's age. This new insight challenges theories of human evolution and sheds light on conditions such a...

SourceHarvard Medical School·JournalNature Genetics·DateAug 23, 2012

Blood vessel forming potential of stem cells from human placenta and umbilical cord blood

Researchers found that human placenta-derived endothelial colony-forming cells (ECFCs) are more proliferative and better at forming new blood vessels than those derived from umbilical cord blood. The study, published in Cell Medicine, suggests that the placenta could be an abundant source of ECFCs for therapeutic use.

Male fertility genes discovered

A recent study has identified more than 40 genetic regions influencing fertility in Hutterite men, which may shed light on unexplained cases of male infertility. The research also found nine genetic regions impacting sperm quality in non-Hutterites.

SourceCell Press·JournalAmerican Journal of Human Genetics·DateMay 24, 2012

New technique reveals unseen information in DNA code

A new technique called TAB-Seq has enabled scientists to map the entire genome of 5-hydroxymethylcytosine sites at single-base resolution. This breakthrough has revealed new information about its patterns of distribution in human and mouse embryonic stem cells, indicating a major role in regulating gene expression and development.

SourceUniversity of Chicago·JournalCell·DateMay 17, 2012

Study suggests new way to treat chronic pain

A recent study by McGill University researchers has identified a key gene affecting chronic pain sensitivity, offering a potential new approach to individualized therapy. The findings suggest that targeting the pore-forming function of P2X7 receptors may provide relief for patients with genetically inherited low pain sensitivity.

SourceMcGill University·JournalNature Medicine·DateMar 26, 2012

The Viking journey of mice and men

A multinational team of researchers found that house mice (M. m. domesticus) colonized Iceland and Greenland during the Viking age, mirroring human settlement patterns. The analysis of mouse mitochondrial DNA showed no evidence of mice in Newfoundland, suggesting a fleeting presence.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateMar 18, 2012

The molecular basis of touch sensation

MDC researchers have identified a crucial function of the c-Maf gene in the development of neurons responsible for mechanosensory function. In mice with deleted c-Maf, high-frequency vibrations are not detected, leading to impaired touch sensation and early-onset cataracts.

SourceHelmholtz Association·JournalScience·DateFeb 21, 2012