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Using geometry, researchers coax human embryonic stem cells to organize themselves

Using geometry, researchers coax human embryonic stem cells to organize themselves

About seven days after conception, something remarkable occurs in the clump of cells that will eventually become a new human being. Continue reading

Noninvasive brain control: New light-sensitive protein enables simpler, more powerful optogenetics

Noninvasive brain control: New light-sensitive protein enables simpler, more powerful optogenetics

Optogenetics, a technology that allows scientists to control brain activity by shining light on neurons, relies on light-sensitive proteins that can suppress or stimulate electrical signals within cells. This technique requires a light source to be implanted in the brain, where it can reach the cells to be controlled. Continue reading

Some aggressive cancers may respond to anti-inflammatory drugs

Some aggressive cancers may respond to anti-inflammatory drugs

New research raises the prospect that some cancer patients with aggressive tumors may benefit from a class of anti-inflammatory drugs used to treat rheumatoid arthritis. Studying triple-negative breast cancer, researchers at Washington University School of Medicine in St Continue reading

New device could improve biomarker analyses

New device could improve biomarker analyses

A device proposed by researchers at Sweden’s KTH Royal Institute of Technology could offer a more reliable alternative for detecting biomarkers in patients facing such illnesses as cancer or malaria. Continue reading

New device could improve biomarker analyses

New device could improve biomarker analyses

A device proposed by researchers at Sweden’s KTH Royal Institute of Technology could offer a more reliable alternative for detecting biomarkers in patients facing such illnesses as cancer or malaria. Whether to extract circulating tumor cells from the blood of a cancer patient, or to measure the elasticity of red blood cells due to malaria infection, the physical attributes of cells are important biomarkers in medicine. Continue reading

Invisibility cloak for immune cells keeps system healthy

Invisibility cloak for immune cells keeps system healthy

The human immune system is very complex. Continue reading

Invisibility cloak for immune cells keeps system healthy

Invisibility cloak for immune cells keeps system healthy

The human immune system is very complex. A large number of different cells with various functions ensure that invading microorganisms such as viruses or bacteria can quickly be rendered innocuous and the entire organism stays healthy Continue reading

Prior drug use is greatest predictor of ecstasy use among U.S. high school seniors

Prior drug use is greatest predictor of ecstasy use among U.S. high school seniors

Ecstasy, also known by its chemical abbreviation MDMA, is an illicit drug that is commonly taken at nightclubs and dance parties. Ecstasy’s street names include: “Molly” (U.S.), “Mandy” (U.K.), “E,” and “X.” Although not limited to nightlife scenes, ecstasy is popular at dance parties, as it tends to enhance the party experience (e.g., perceptions of lights and music, nightlife socialization). A study just published in the journal Substance Use & Misuse by researchers affiliated with New York University’s Center for Drug Use and HIV Research (CDUHR), examined a national sample of high school seniors to determine who is currently at high risk for ecstasy use. Continue reading

BMI measurement may be missing 25 percent of children who could be considered obese

BMI measurement may be missing 25 percent of children who could be considered obese

Physicians using body mass index (BMI) to diagnose children as obese may be missing 25 percent of kids who have excess body fat despite a normal BMI, which can be a serious concern for long-term health, according to a Mayo Clinic study published online in Pediatric Obesity . Continue reading

Virus kills triple negative breast cancer cells, tumor cells in mice

Virus kills triple negative breast cancer cells, tumor cells in mice

A virus not known to cause disease kills triple-negative breast cancer cells and killed tumors grown from these cells in mice, according to Penn State College of Medicine researchers. Understanding how the virus kills cancer may lead to new treatments for breast cancer Continue reading