Getting a consistent good night’s sleep supports immune function, study shows

Getting a consistent good night's sleep supports immune function, study shows

Getting a consistent good night’s sleep supports normal production and programming of hematopoietic stem cells, a building block of the body’s innate immune system, according to a small National Institutes of Health-supported study in humans and mice. Sleep has long been linked to immune function, but researchers discovered that getting enough of it influenced the … Read more

Why fatigue from long COVID goes beyond simply feeling tired

Study: Severe fatigue as symptom of long COVID is characterized by increased expression of inflammatory genes in monocytes, increased serum pro-inflammatory cytokines, and increased CD8+ T-lymphocytes: A putative dysregulation of the immune-brain axis, the coagulation process, and auto-inflammation to explain the diversity of long COVID symptoms. Image Credit: eamesBot / Shutterstock

In a recent study posted to the medRxiv* preprint server, researchers in the Netherlands examined the role of inflammatory genes, cytotoxic T-lymphocytes (CD8+ T cells), and pro-inflammatory cytokines in long-lasting severe fatigue experienced by a large number of coronavirus disease 2019 (COVID-19) patients. Study: Severe fatigue as symptom of long COVID is characterized by increased … Read more

The TB Vaccine Mysteriously Protects Against Lots of Things. Now We Know Why

The TB Vaccine Mysteriously Protects Against Lots of Things.  Now We Know Why

When babies in the African countries of Guinea Bissau and Uganda were given the tuberculosis vaccine, something remarkable happened. Instead of the vaccine only protecting against the target bacteria – Myocbacterium tuberculosis – the tuberculosis vaccine offered broad protection against a range of unrelated infections, including respiratory infections and serious complications such as sepsis. Australian … Read more

‘Zombie Cells’ Are Still Alive But Can’t Function, And They Accumulate as We Age

'Zombie Cells' Are Still Alive But Can't Function, And They Accumulate as We Age

Damage to the ends of your chromosomes can create “zombie cells” that are still alive but can’t function, according to our recently published study in Nature Structural and Molecular Biology. When cells prepare to divide, their DNA is tightly wound around proteins to form chromosomes that provide structure and support for genetic material. At the … Read more