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Northwestern Medicine scientists have uncovered how a major Parkinson's disease gene disrupts the brain's most vulnerable dopamine-producing neurons before detectable neuronal loss. The study offers new clues for developing treatments that target the disease in its earliest stage

Glyphosate was long thought to be safe for honeybees because they lack the enzyme the chemical targets in weeds. However, researchers found that exposed bees foraged 13 percent less after only three days and showed changes in brain chemicals linked to behavior. Across a whole hiv

When a heart attack damages the heart, the injured muscle is replaced by scar tissue. That scar can interfere with the electrical signals that coordinate each heartbeat, increasing the risk of dangerous rhythm disorders known as arrhythmias.