All news from Anaesthesiology

Study On Signalling Efficiency Of Axon

A team of bioengineers at UC San Diego has answered a question that has long puzzled neuroscientists, and may hold a key to better understanding the complexities of neurological disorders: Why are axons, the spindly arms extending from neurons that transmit information from neuron to neuron in the brain, designed the way they are?

Circadian Rhythms Depends On Neuropeptide Release Of VIP SCN Neurons

Scientists unlocked a cure for jet lag in mice by activating a small subset of the neurons involved in setting daily rhythms. The mammalian suprachiasmatic nucleus (SCN) functions as a master circadian pacemaker, integrating environmental input to align physiological and behavioral rhythms to local time cues. The study was published in the journal Neuron.

Approximately 10% of SCN neurons express vasoactive intestinal polypeptide (VIP); however, it is unknown how the firing activity of VIP neurons releases VIP to entrain circadian rhythms. To identify physiologically relevant firing patterns, they optically tagged VIP neurons and characterized spontaneous firing over 3 days.  VIP neurons had circadian rhythms in firing rate and exhibited two classes of instantaneous firing activity.

Elite weightlifter: It Takes a Strong Pair of Knees for the Journey

Researchers from China's Ningbo University have discovered what makes the critical difference between an elite snatch style weightlifter and a sub-elite one, according to a new study published in the journal Heliyon.

In the Olympic sport of snatch style weightlifting, athletes squat, take hold of a barbell on the ground, and then lift it with outstretched arms overhead, using one continuous motion. Findings show that the success of this maneuver comes down to the strength of a part of the body that might not seem immediately obvious: the knees.