Category Health/Medical

NASA continues BioNutrients space-fermented food research

NASA astronaut and Expedition 72 Commander Suni Williams displays a set of BioNutrients production packs during an experiment aboard the International Space Station. The experiment uses engineered yeast to produce nutrients and vitamins to support future astronaut health.
NASA

NASA’s BioNutrients series of experiments is testing ways to use microorganisms to make nutrients that will be needed for human health during future long-duration deep space exploration missions.

Some vital nutrients lack the shelf-life needed to span multi-year human missions, such as a mission to Mars, and may need to be produced in space to support astronaut health. To meet this need, the BioNutrients project uses a biomanufacturing approach similar to making familiar fermented foods, such as yogurt...

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Blood test shows promise for early detection of dementia

Research findings focus on people with a sleep disorder, but could have broader implications. For people with a certain sleep disorder, a simple blood test could help predict the development of dementia years before symptoms appear, a new study indicates.

Idiopathic REM sleep behaviour disorder (iRBD) causes people to physically act out their dreams while sleeping.

The disorder is also associated with a very high risk of Parkinson’s disease and a related condition called Dementia with Lewy Bodies.

This is a form of dementia that often causes memory and cognitive loss, as well as vivid visual hallucinations and movement difficulties similar to Parkinson’s.

McGill University researchers have discovered that a blood test, originally developed to detect Alzheimer’s disease, co...

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Decoding the neural basis of affective empathy: How the brain feels others’ pain

[그림1] 통증과 가려움 유발 자극에 의해 활성화된 뉴런의 시각화
Experimental setup for observational fear testing and calcium imaging in observer mice. The observer mouse witnesses the demonstrator mouse receiving electric shocks, enabling the assessment of observational fear. During the experiment, miniature endoscopic calcium imaging is used to monitor neuronal activity in the observer’s anterior cingulate cortex (ACC). Green-labeled neurons indicate cells expressing calcium indicators (GCamp6f), while white-labeled neurons represent activated cells observed through calcium imaging (Raw). The observed behaviors in the observational fear experiment include observer freezing (OB-freezing; pink), demonstrator pain response (DM-reaction; blue), and demonstrator freezing (DM-freezing; yellow)...
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Can melatonin supplements really ‘reverse’ DNA damage caused by lack of sleep?

Sleep isn’t just a luxury, it’s a vital process that helps our bodies repair and rejuvenate. Researchers have started to uncover how the quality and timing of sleep can affect more than just how rested we feel—it might also affect the very blueprint of our cells: our DNA.

A new study from Canada found that melatonin, a hormone known for its role in regulating sleep, might help reverse some of the DNA damage caused by years of poor sleep.

Melatonin is produced by the pineal gland in our brains when darkness falls. It signals to our bodies that it’s time to wind down and prepare for sleep. Beyond its sleep-inducing properties, melatonin is also a powerful antioxidant.

Antioxidants help protect our cells from oxidative stress—a condition in which an imbalance between free radi...

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