All news from Psychiatry

Aging worms: More Insights on Living a Stronger and Longer Life

Research from the University of Michigan Life Sciences Institute has uncovered a cause of declining motor function and increased frailty in tiny aging worms—and a way to slow it down.  The findings, scheduled to publish in Science Advances, identify a molecule that can be targeted to improve motor function and indicate that similar pathways may be at play in aging mammals as well.

AAN Guidelines: How Should Doctors Determine Brain Death?

The American Academy of Neurology (AAN) called for uniform brain death laws, policies, and practices in a new position statement. The position paper, published in  Neurology , defines brain death – otherwise known as death by neurological criteria – as the individual's death due to irreversible loss of function of the entire brain in accordance with the  Uniform Determination of Death Act  (UDDA), model state law that was approved for the US in 1981.

Study: Poking and Prodding the Molecules of Life

Applying physics to the properties and underlying structures of the molecules of life offers an insight into the mechanisms that make living beings tick. But even seemingly simple actions like muscle contraction involve a wide array of biological interactions, which has shrouded the dynamics and function of individual molecules behind a curtain of complexity.

Body's Largest Cell Receptor Located

A giant toadstool that swallow up vitamins and nutrients in the intestines and kidneys. This is how the receiver, which absorbs B12 vitamin in the small intestine, looks. For the first time, researchers have had an insight into an unknown biology which has survived hundreds of millions of years during the evolution of life.

Ondansetron: An Effective Alternative to Decrease the Incidence of Postspinal Hypotension

One of the important and predicted physiological effects of spinal anesthesia is hypotension. A range of strategies including mechanical interventions, intravenous fluids and vasoconstrictor drugs have been used to minimize or prevent spinal anesthesia-induced hypotension.

Observational studies suggest that ondansetron reduces the incidence of post-spinal hypotension (PSH) and support the use of combined fluid preloading and vasoconstrictors for this purpose (but with limited doses) to avoid side effects as fluid overload and tachycardia respectively.