Medical Xpress news

Medical Xpress / Macrophages need constant reminders to retain memories of prior infections, researchers discover

Researchers from the University of California, Los Angeles, have discovered that immune cells known as macrophages remain poised to fight repeat infections due to the persistent presence of signaling molecules left behind ...

22 hours ago in Immunology
Medical Xpress / Evidence suggests chatbot disclaimers may backfire, strengthening emotional bonds

Concerns that chatbot use can cause mental and physical harm have prompted policies that require AI chatbots to deliver regular or constant reminders that they are not human. In an opinion appearing in Trends in Cognitive ...

21 hours ago in Psychology & Psychiatry
Medical Xpress / Babies are exposed to more 'forever chemicals' before birth than previously known, new study finds

Babies born between 2003 and 2006 were exposed to many more "forever chemicals" before birth than scientists previously understood, according to new research published in Environmental Science & Technology.

23 hours ago in Health
Medical Xpress / Bone marrow cell atlas created for improved leukemia research

What do healthy bone marrow cells in children look like? For the first time, researchers have mapped this out. Scientists at the Princess Máxima Center examined nearly 91,000 individual bone marrow cells from healthy children. ...

13 hours ago in Immunology
Medical Xpress / Booster shots reduce the risks of COVID-19 deaths, study finds

Booster vaccines reduced the risk of COVID‑19-related hospitalization and death, according to a new study of over 3 million adults who had the autumn 2022 vaccine in England. The research, led by the universities of Bristol ...

14 hours ago in Vaccination
Medical Xpress / Senescent cells after pregnancy may fuel postpartum breast cancer spread

Postpartum breast cancer is diagnosed five to ten years after giving birth. It is associated with a higher risk of metastasis and a lower survival rate compared with women who have not been pregnant or those diagnosed during ...

15 hours ago in Oncology & Cancer
Medical Xpress / Menopausal hormone therapy not linked to increased risk of death, study shows

Menopausal hormone therapy (commonly known as hormone replacement therapy or HRT) is not associated with an increased risk of death, finds a Danish study of over 800,000 women published in The BMJ. The findings support current ...

14 hours ago in Endocrinology & Metabolism
Medical Xpress / Daily exercise and protein drinks may cut care needs for dementia patients, study finds

A simple combination of daily physical exercise and protein-rich nutritional drinks appears to offer significant health benefits for people with dementia. In a new study from Karolinska Institutet, not only did the participants' ...

Medical Xpress / Existing hospital analyzers offer a low-cost method to screen for fake vaccines

The World Health Organization (WHO) estimates that 10.5% of medicines worldwide in low- and middle-income countries are substandard or are falsified (i.e., fake). These medicines and vaccines fail to prevent and treat the ...

14 hours ago in Vaccination
Medical Xpress / Scalable human neuron networks reveal brain-like rhythms and how drugs reshape them

An EEG (electroencephalogram) is a painless test that uses small sensors placed on the scalp to measure the brain's electrical activity. It provides a real-time readout of brain "waves"—rhythms generated by large groups ...

16 hours ago in Neuroscience
Medical Xpress / How a parent's concern may help flag a child's sudden severe illness in over 90% of cases

A parent's intuition about their child's condition is a significant medical indicator. A new study from the University of Oulu and Oulu University Hospital shows that even comprehensive digital symptom questionnaires may ...

15 hours ago in Pediatrics
Medical Xpress / How age, sex and genetics shape our antibodies

Age, biological sex, and human genetic factors influence the production of antibodies during the immune response. A team of scientists from the Institut Pasteur, the CNRS and the Collège de France have shown that these factors ...

16 hours ago in Immunology