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Treating cancer with light

Scientists at UC Irvine have designed a new device using spatial frequency domain imaging to image cancerous lesions and monitor the effectiveness of photodynamic therapy (PDT) for skin cancer. The device, which uses an array of LEDs, can provide detailed images of the biochemistry of tissue, enabling targeted treatment.

SourceOptica·DateOct 18, 2010

Embargoed news from Annals of Internal Medicine

A new study found that dieters who slept 8.5 hours per night lost 56% more body fat compared to those who slept 5.5 hours, highlighting the importance of adequate sleep for weight maintenance. Researchers also discovered that sleep restriction increased ghrelin levels, leading to increased hunger and food intake.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateOct 4, 2010

Cancer risk for kidney transplant

A significant study found that no single immunosuppressive drug regimen increases the risk of cancer among kidney transplant patients. However, factors such as age and smoking history contribute to increased cancer risk.

SourceResearch Australia·JournalJournal of the American Society of Nephrology·DateApr 29, 2010

New model of skin cancer provides insights on second-most common type of cancer

Scientists at the University of Pennsylvania School of Medicine have developed a new model of skin cancer that sheds light on the role of Src kinase and its anti-oncogene counterpart, Srcasm. The study found that Fyn, a member of the Src family of proteins, is a potent oncogene in skin cancer, while Srcasm levels are decreased and acti...

How stem cells make skin

Researchers identified two proteins, C/EBPα and β, that control the transition from stem cell to skin cell development in mice. Mice lacking these proteins had defective skin formation and died shortly after birth. The study sheds light on the mechanisms involved in skin cancer and other epithelial cancers.

SourceEuropean Molecular Biology Laboratory·JournalNature Cell Biology·DateSep 13, 2009

Study reveals new role of vitamin C in skin protection

A new study reveals that vitamin C helps promote wound healing and protects skin cells from DNA damage, a finding with great relevance to the cosmetics industry. The research also suggests that vitamin C can help remove DNA damage caused by free radicals, leading to potential advances in skin regeneration and cancer prevention.

SourceUniversity of Leicester·JournalFree Radical Biology and Medicine·DateSep 9, 2009

Mice with skin condition help scientists understand tumor growth

Researchers engineered mice with a persistent wound-like skin condition to study tumor growth. The study found that chronic skin wounds promote skin tumors by secreting molecules that activate dermal cells and increase inflammation. Notch1 signaling plays a critical role in this process, suggesting potential complications for drug design.

SourceWashU Medicine·JournalCancer Cell·DateJul 6, 2009