Author Archives: Rocio Gallegos, MD

New Bacterial Species Involved in Tooth Decay

Researchers have discovered that a bacterial species called Selenomonas sputigena can have a major role in causing tooth decay. Scientists have long considered another bacterial species, the plaque-forming, acid-making Streptococcus mutans, as the principal cause of tooth decay. However, in the study, S. sputigena, previously associated only with gum disease, can work as a key […]

Ensuring a Better Diagnosis of Hereditary Diseases

Researchers at the Department of Biology, University of Copenhagen, have now contributed to solving this problem for a specific gene called GCK. Rasmus Hartmann-Petersen, Professor at the Department of Biology, explains:– “The GCK gene, which codes for the enzyme glucokinase, regulates the secretion of insulin in the pancreas. GCK gene variants can therefore cause a […]

Ultra-Processed Foods May Play a Part in Feeling Anxious

Although ultra-processed foods are convenient, low cost, quick to prepare or ready-to-eat, these industrial formulations of processed food substances contain little or no whole food. They result from extensive ‘physical, biological, and chemical processes’ that create food products that are deficient in original and natural food.  Researchers explored a nationally representative sample of the United […]

Monitoring Glucose Levels with Non-Invasive Methods

Noninvasive glucose monitoring devices are not currently commercially available in the United States, so people with diabetes must collect blood samples or use sensors embedded under the skin to measure their blood sugar levels. Now, with a new wearable device created by Penn State researchers, less intrusive glucose monitoring could become the norm. The researchers […]

Low Sexual Satisfaction in Middle Age May Serve as an Early Warning Sign for Future Cognitive Decline

A study, which tracked associations between erectile function, sexual satisfaction and cognition in hundreds of men aged 56 through 68, found that declines in sexual satisfaction and erectile function were correlated with future memory loss. The study explored the relationship between physical changes like the microvascular changes relevant for erectile function, and psychological changes, such […]

New Cell Culture System for Expanding Human Hematopoietic Stem Cells

Hematopoietic stem cells (HSCs) are important immature blood cells in bone marrow that can be triggered to develop into any blood cell type. HSC transplants can be used to treat conditions where bone marrow is damaged and no longer able to produce healthy blood cells, but the widespread and safe use of HSCs is limited […]

Obesity Increases Risk of Mental Disorders in All Age Groups

Being obese significantly increases the chances of also developing mental disorders.  “We analyzed a population-wide national registry of inpatient hospitalizations in Austria from 1997 to 2014 in order to determine the relative risks of comorbidities in obesity and identify statistically significant sex differences,” explains Elma Dervic of the Complexity Science Hub. Consequently, it became evident […]

Skin Patch Shows Promise Desensitizing Patients with Peanut Allergy

Peanut allergy affects approximately 2 percent of children in the United States, Canada and other westernized countries, and it commonly persists into adulthood. Life-threatening allergic reactions can be triggered by unintentional exposure to minute quantities, including through products manufactured on shared equipment as peanuts. Currently, there are no approved treatments for peanut-allergic children younger than […]

Regular Walks Strengthen Connections in and Between Brain Networks

A new University of Maryland School of Public Health study reveals how walking strengthens connections within and between three of the brain’s networks, including one associated with Alzheimer’s disease, adding to the growing evidence that exercise improves brain health. The study examined the brains and story recollection abilities of older adults with normal brain function […]