Category Health/Medical

Scientists find Neurochemicals have Unexpectedly Profound Roles in the Human Brain

Electrodes for brain research
Virginia Tech researchers with the Fralin Biomedical Research Institute at VTC Center for Human Neuroscience Research construct carbon fiber microelectrodes for real-time detection of dopamine and serotonin activity in human patients. The in-house, custom-made electrodes are narrow and used during deep brain stimulation electrode implantation surgeries to measure activity of both dopamine and serotonin in patients. Shown at right in comparison with a paper clip.

Dopamine, serotonin involved in sub-second perception, cognition...

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The effects of Oxytocin on Social Anxiety depend on Location, location, location

Mouse
Working with California mice, UC Davis researches showed that the “love hormone” oxytocin can sometimes have antisocial effects depending on where in the brain it is made. (Mark Chappell/UC Riverside)

Finding a better route to treating social anxiety disorder may lie in another part of the brain, researchers suggest. The findings of the study show that oxytocin produced in the BNST increases stress-induced social anxiety behaviors in mice. This may provide an explanation as to why oxytocin can sometimes have antisocial effects.

Studies have long suggested that oxytocin – a hormone that can also act as a neurotransmitter – regulates prosocial behavior such as empathy, trust and bonding, which led to its popular labeling as the “love hormone...

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A Hydrogel that could help Repair Damaged Nerves

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A conductive polymer hydrogel could help repair damaged peripheral nerves.
Credit: Adapted from ACS Nano 2020, DOI: 10.1021/acsnano.0c05197

Injuries to peripheral nerves – tissues that transmit bioelectrical signals from the brain to the rest of the body – often result in chronic pain, neurologic disorders, paralysis or disability. Now, researchers have developed a stretchable conductive hydrogel that could someday be used to repair these types of nerves when there’s damage. They report their results in ACS Nano.

Injuries in which a peripheral nerve has been completely severed, such as a deep cut from an accident, are difficult to treat...

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Remote Control of Blood Sugar: Electromagnetic Fields treat Diabetes in Animal Models

Study suggests EMFs alter redox signaling to improve insulin sensitivity. Researchers from the University of Iowa may have discovered a safe new way to manage blood sugar non-invasively. Exposing diabetic mice to a combination of static electric and magnetic fields for a few hours per day normalizes two major hallmarks of type 2 diabetes, according to new findings published Oct. 6 in Cell Metabolism.

“We’ve built a remote control to manage diabetes,” says Calvin Carter, PhD, one of the study’s lead authors and a postdoc in the lab of senior author Val Sheffield, MD, PhD, professor of pediatrics, and of ophthalmology and visual sciences at the UI Carver College of Medicine...

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