Medical research

'Mystical' psychedelic compound found in normal brains

In the past few years, thrill-seekers from Hollywood, Silicon Valley and beyond have been travelling to South America to take part in so-called Ayahuasca retreats. Their goal: to partake in a brewed concoction made from a ...

Medical research

Study reveals biology of leptin, the hunger hormone

In a new study, Yale researchers offer insight into leptin, a hormone that plays a key role in appetite, overeating, and obesity. Their findings advance knowledge about leptin and weight gain, and also suggest a potential ...

Oncology & Cancer

Study shows more effective method for detecting prostate cancer

Each year, 1 million men in the U.S. undergo biopsies to determine whether they have prostate cancer. The biopsy procedure traditionally has been guided by ultrasound imaging, but this method cannot clearly display the location ...

Oncology & Cancer

New review identifies four hallmarks of cancer metastasis

Researchers at the University of Alabama at Birmingham and the University of Kansas Cancer Center have identified four hallmarks of cancer metastasis—when cancer has spread to different parts of the body from where it started. ...

Oncology & Cancer

Pathogens find safe harbor deep in the gastric glands

Scientists have long tried to understand how pathogenic bacteria like Helicobacter pylori, a risk factor for stomach ulcers and cancer, survive in the harsh environment of the stomach. In a new study publishing May 2 in the ...

Oncology & Cancer

Study shows why stomach pathogen is so tough to eradicate

The stomach-dwelling bacteria Helicobacter pylori survives in the stomach—a hellish, churning vat of hydrochloric acid—by holing up inside that organ's pitlike glands and establishing squatter's rights. Once the germ ...

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