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Science News Archive 2004 - Page 33


Page 33 of 135

Melanin makes skin vulnerable to harmful ultraviolet rays

Research finds that melanin in hair follicles can increase cell death in response to UV radiation, depending on its color. The study used mice with engineered pigmentation to demonstrate this effect, suggesting that people with darker skin may not be as vulnerable to skin cancer as those with fair skin.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateOct 13, 2004

Coke versus Pepsi: It's all in the head

A recent study found that Coke preference is influenced by brand knowledge and activates specific brain regions, including the hippocampus. This discovery highlights the role of cultural messages in shaping taste perception and has important implications for understanding obesity and other health issues related to sugared colas.

SourceCell Press·JournalNeuron·DateOct 13, 2004

Epilepsy study shows memory loss after brain surgery

A recent study published in Epilepsia found that selective amygdalohippocampectomy (SAH) surgery can lead to verbal memory loss in patients, especially those who underwent left temporal lobe surgery. The study revealed that 30% to 50% of patients who underwent SAH on the left side showed no recovery of verbal memory after 12 months.

SourceBlackwell Publishing Ltd.·JournalEpilepsia·DateOct 12, 2004

Seroquel: The patient's choice

A new study reveals that 8 out of 10 patients with serious mental illnesses are satisfied with their Seroquel treatment, experiencing improved positive and negative symptoms. This is attributed to its effectiveness and favorable side effect profile, leading to better compliance and outcomes.

Genetic link to risky pregnancy

Researchers found a genetic connection between preeclampsia and the interaction between trophoblast cells and natural killer cells. The study suggests that a specific protein combination may be responsible for suppressing the NK cells' ability to stimulate vessel remodeling, leading to decreased blood flow to the fetus.

SourceJournal of Experimental Medicine·JournalJournal of Experimental Medicine·DateOct 11, 2004