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Medical Xpress / How the brain uses context boundaries to guide decision-making in both spatial and abstract environments

The DAM-Decision and Memory group at Universitat Jaume I in Castelló, led by Raphael Kaplan and composed of researchers from Spain, Italy and the United States, has recently published the results of two studies that provide ...

Apr 4, 2025 in Psychology & Psychiatry
Medical Xpress / Metabolic modeling reveals aging microbiome produces fewer vital substances

The intestine is home to a complex ecosystem of microorganisms. This so-called gut microbiome plays an important role in health, disease, and aging. Various studies suggest that the microbiome "ages" and drives the host's ...

Apr 4, 2025 in Inflammatory disorders
Medical Xpress / Serotonin functions as 'prospective code for value' in brain's reward processing system

In our day-to-day lives, we're constantly making a slew of decisions, from immediate matters to prospects on the far horizon. But the evolutionary nuts-and-bolts of how our brains weigh these numerous daily decisions and ...

Apr 4, 2025 in Neuroscience
Medical Xpress / Pancreatic cells 'remember' cancer-linked epigenetic marks without mutations, study shows

Johns Hopkins Medicine scientists say they have found a pattern of so-called epigenetic "marks" in a transition state between normal and pancreatic cancer cells in mice, and that the normal cells may keep at least a temporary ...

Apr 4, 2025 in Oncology & Cancer
Medical Xpress / Novel genomic screening tool enables precision reverse-engineering of genetic programming in cells

Collaborative research led by investigators at Dana-Farber/Boston Children's Cancer and Blood Disorders Center defines a novel approach to understanding how certain proteins called transcription factors determine which genetic ...

Apr 4, 2025 in Genetics
Medical Xpress / Alzheimer's early detection tests using video games may be as effective as blood tests

Alzheimer's early detection tests using video games developed by Rutgers-Newark researchers may help spot the disease years before symptoms are noticeable and provide a noninvasive form of dementia screening.

Medical Xpress / Immune system's age-related changes mapped with unprecedented detail

Why are older people more susceptible to infections than younger people? Why do vaccinations sometimes have less of an effect on them? In order to better understand the mechanisms of the aging immune system, the RESIST-Senior ...

Apr 4, 2025 in Immunology
Medical Xpress / Platform-predicted treatments improve outcomes for platinum-resistant ovarian cancer

Results from a new Phase 3 trial published in the journal npj Precision Oncology found that a cancer stem cell test can accurately choose more effective treatments and lead to improved outcomes for patients with platinum-resistant ...

Apr 4, 2025 in Oncology & Cancer
Medical Xpress / Hospital study finds C. diff spreads three times more than thought

One of the most common health-care-associated infections spreads within intensive care units (ICUs) more than three times more than previously thought, new research has found.

Medical Xpress / AI screening for opioid use disorder associated with fewer hospital readmissions

An artificial intelligence (AI)-driven screening tool successfully identified hospitalized adults at risk for opioid use disorder and recommended referral to inpatient addiction specialists.

Apr 4, 2025 in Addiction
Medical Xpress / How microRNAs act as a 'blueprint' for the developing brain

Our brains contain billions of neurons and trillions of connections, and scientists are only beginning to understand the intricate process required to build this level of complexity. This includes uncovering the role of microRNAs: ...

Apr 4, 2025 in Genetics
Medical Xpress / Molecular messenger of sight: Scientists investigate protein structure RBP3's role in vision

Scientists have for the first time looked deep into the protein structure that may determine our vision—and discovered that it is much more dynamic than previously thought. RBP3 not only changes its shape depending on its ...

Apr 4, 2025 in Medical research