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A fierce debate rages between drug treatment and harm reduction advocates in Alberta. But that misses the point, argues Chris McBain, a former injection drug user. He needed both to get his life back.
One of the most well-studied synapses in the brain continues to surprise neuroscientists. According to a May 18 study in Nature Communications, mossy fiber synapses, so named because their terminals look a bit like moss growing on the axons, have an unexpected way of regulating the flow of information in the hippocampus: the postsynaptic cells that receive neurotransmitter signals can release their own glutamate to tamp down the transmission from the cell on the presynaptic side. This so-called retrograde signaling was totally unexpected and depends on calcium influx to the postsynaptic ce...
