Medical News from ScienceDaily: Health & Medicine

New method helps identify causal mechanisms in depression

December 6, 2017, 9:25 am by ScienceDaily: Health & Medicine

People with major depressive disorder have alterations in the activity and connectivity of brain systems underlying reward and memory, according to a new study. The findings provide clues as to which regions of the brain could be at the root of symptoms, such as reduced happiness and pleasure, in depression.


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More medical news from ScienceDaily: Health & Medicine

Allergy potential of strawberries and tomatoes depends on the variety
ScienceDaily: Health & Medicine : July 13, 2018, 8:19 am
Strawberries and tomatoes are among the most widely consumed fruits and vegetables worldwide. However, many people are allergic to them, especially if they have been diagnosed with birch pollen allergy. A team has investigated which strawberry or tomato varieties contain fewer allergens than others and to what extent cultivation or preparation methods are involved.

Synapse-specific plasticity governs the identity of overlapping memory traces
ScienceDaily: Health & Medicine : July 13, 2018, 6:51 am
Each memory is stored in a specific population of neurons called engram cells. When a memory is linked with another to generate an associative memory, two memory traces overlap. At the same time, individual memories maintain their own identities. Using two overlapping fear memories in mice, researchers show that synapse-specific plasticity guarantees both storage and identity of individual memories. They also show that memory traces no longer exist in the brain after complete retrograde amnesia.

How fast can acute stroke treatment become to still be reliable?
ScienceDaily: Health & Medicine : July 13, 2018, 6:35 am
Every day roughly three new stroke suspects are rushed by ambulance to Helsinki University Hospital Emergency Department to be considered for urgent clot-busting thrombolytic therapy or thrombectomy to prevent permanent stroke caused by acute cerebral ischemia. But perilously, out of one hundred such 'thrombolysis candidates' only half is actually caused by this condition and the rest have other kinds of diagnoses. Despite the tremendous time-pressure, the rapid diagnoses need to be accurate.

Teaching robots to be more reliable teammates for soldiers
ScienceDaily: Health & Medicine : July 13, 2018, 6:35 am
Researchers have developed a new technique to quickly teach robots novel traversal behaviors with minimal human oversight.

One step closer to finding a cure for brain diseases
ScienceDaily: Health & Medicine : July 13, 2018, 6:35 am
Researchers have identified a mechanism for signaling brain nerve cells through excitatory synaptic binding proteins. The finding provides important clues to understanding the principles of synaptic nerve transmission and thus can be used to analyze the fundamental causes of brain diseases and treat them.