Loss of visual acuity is a common feature of aging, whether it’s from age-related conditions such as glaucoma, an impaired ability for cells to respond
Abstract Osteocalcin (OCN), the most abundant noncollagenous protein in the bone matrix, is reported to be a bone-derived endocrine hormone with wide-ranging effects on many
The first single-cell analysis of the human ovarian cortex revealed six main types of cells, but none of the oogonial stem cells that other researchers
Sometime around 2 billion years ago, a cyanobacterium slipped inside a larger cell, started producing energy there, and became the indispensable powerhouse we know today
Researchers at the University of Washington have discovered a novel DNA-sensing pathway that launches an antiviral response to foreign genetic material in human cells. Triggered
Female of most mammalian species are fertile throughout their adult life. But humans are different, says University of Copenhagen molecular geneticist Eva Hoffmann. A woman’s
Trophoblasts, cells present during development in the fetus and placenta that also circulate in a pregnant woman’s bloodstream, could potentially be used for noninvasive prenatal
Since 2006, when Shinya Yamanaka, now the director of the Center for iPS Cell Research and Application at Kyoto University, discovered a method that could
An experimental vaccine continues to show promise in preventing active tuberculosis infections in patients with the latent form of the disease, researchers reported yesterday (October
A study of nematode worms, mice, and humans indicates that, across the animal kingdom, with aging comes more neural activity and when this natural increase
Researchers have found a link between RNA splicing alterations and tau-mediated neurodegeneration in Alzheimer’s disease. The study, published today (October 8) in Cell Reports, examined
For the first time, scientists have found that complex sugars called glycans may bind to some RNA molecules, according to a bioRxiv preprint published September
In the early 2000s, Arturo Zychlinsky at the Max Planck Institute for Infection Biology in Berlin found that mammalian immune cells called neutrophils use an
Cancer cells have the ability to connect to and feed off of neurons in the brain, according to three studies published in Nature on Wednesday
A mesh-like network of cells within mice’s skin plays a previously unknown role in pain perception, researchers reported today (August 16) in Science. The scientists
When Sara Campbell first typed “exercise and microbiome” into PubMed in 2010 and hit enter, “the search literally said zero,” she tells The Scientist. Campbell
An international team of researchers has created embryos containing both human and monkey cells, the Spanish newspaper El País reported July 31. The controversial project
Last Friday (July 26), the National Institutes of Health announced new restrictions on human fetal tissue research for scientists applying for grants using the material
Even once they have enough to eat, kids that have suffered from malnutrition do not grow and develop as well as kids that have always
A newly developed method called DNA microscopy can accurately pinpoint the location of mRNA molecules within a cell and produce a visual map of the
In one of the University of Sheffield’s physics labs, a few hundred photosynthetic bacteria were nestled between two mirrors positioned less than a micrometer apart.
In mice whose sense of smell has been disabled, a squirt of stem cells into the nose can restore olfaction, researchers report today (May 30)
Scientists have known that the cancer drug ONC201 blocks cells from proliferating and kills tumors in cell and animal models—but they haven’t known exactly how
Escherichia coli is capable of synthesizing drug-resistant proteins even in the presence of antibiotics designed to cripple cell growth. That’s the finding by a group
scientists have long believed that humans and many other mammals have two types of immune systems: innate and adaptive. The former is driven by natural
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