Related Science News

July 20, 2020

Turning off “junk DNA” may free stem cells to become neurons

For every cell in the body there comes a time when it must decide what it wants to do for the rest of its life. In an article published in the journal PNAS, National Institutes of Health researchers report for the first time that ancient viral genes that were once […]
July 17, 2020

Novel Hyperbaric Oxygen Therapy Protocol Can Improve Cognitive Function of Healthy Older Adults

The Sagol Center for Hyperbaric Medicine and Research at Shamir Medical Center, together with the Sackler School of Medicine and Sagol School of Neuroscience at Tel Aviv University, announced today that a peer-reviewed study has demonstrated for the first time that hyperbaric oxygen therapy (HBOT) can significantly enhance the cognitive performance of healthy older adults. […]
July 17, 2020

Penn Researchers Find Three Distinct Immune Responses for Sicker COVID-19 Patients

Researchers from the Penn Institute of Immunology discovered three distinct immune responses to the SARS-CoV2 infection that could help predict the trajectory of disease in severe COVID-19 patients and may ultimately inform how to best treat them. The findings were published in Science. “For patients who are hospitalized with COVID-19, there isn’t just […]
July 17, 2020

Researchers 3D print a working heart pump with real human cells

In a groundbreaking new study, researchers at the University of Minnesota have 3D printed a functioning centimeter-scale human heart pump in the lab. The discovery could have major implications for studying heart disease, the leading cause of death in the United States killing more than 600,000 people a year. The […]
July 17, 2020

Simple twist of DNA determines fate of placenta

The development of the mammalian placenta depends upon an unusual twist that separates DNA’s classic double helix into a single-stranded form, Yale researchers report in the journal Nature. The Yale team also identified the molecular regulator that acts upon this single strand to accelerate or stop placental development, a discovery with […]
July 17, 2020

Researchers discover potential treatment for rare degenerative disease

Yale pharmacology professor Barbara Ehrlich and her team have uncovered a mechanism driving a rare, lethal disease called Wolfram Syndrome and also a potential treatment. Their findings appear in the Proceedings of the National Academy of Sciences. Wolfram Syndrome — a progressive degenerative disease that affects about one in 500,000 people worldwide […]
July 17, 2020

Megaphages harbor mini-Cas proteins ideal for gene editing

The DNA-cutting proteins central to CRISPR-Cas9 and related gene-editing tools originally came from bacteria, but a newfound variety of Cas proteins apparently evolved in viruses that infect bacteria. The new Cas proteins were found in the largest known bacteria-infecting viruses, called bacteriophages, and are the most compact working Cas variants […]
July 16, 2020

MicroRNA-34a Promotes Vascular Cellular Senescence and Consequent Calcification

With the growing interest in the accumulation of senescent cells as an important cause of aging, and more funding flowing into this part of the field, researchers are uncovering numerous direct links between cellular senescence and age-related conditions. Senescent cells cause harm to tissues via their inflammatory secretions, the senescence-associated […]
July 16, 2020

Air pollution affects brain development – but when does the damage start?

The emergency rooms in Barcelona were collapsing under the pressure. Hundreds of patients were arriving in desperate need as they struggled to breathe, while intensive care units struggled to cope with the sudden influx of respiratory problems. Epidemiologists scrambled to trace the source of the outbreak. This epidemic in the […]
July 16, 2020

Fruit flies help shed light on tumor formation, migration and growth

What can the common fruit fly teach us about cancer? “Over the last few decades, the fruit fly – Drosophila melanogaster – has become a successful model for studying human cancers,” said Wu-Min Deng, Ph.D., professor of biochemistry and molecular biology and the Gerald and Flora Jo Mansfield Piltz Professor of […]
July 16, 2020

Flatworms muscle new eyes' wiring into their brains

Peter Reddien's lab at the Whitehead Institute takes a step forward in understanding how neural circuits could be regenerated in adults. If anything happens to the eyes of the tiny, freshwater-dwelling planarian Schmidtea mediterranea, they can grow them back within just a few days. How they do this is a scientific conundrum […]
July 15, 2020

Stem Cell Exhaustion in the Aging Lung

Stem cell activity declines with age throughout the body. In some cases this is because stem cells become less active in response to changes in the signaling environment. In other cases, the cells are damaged or the populations greatly reduced. The consequence of this decline is that fewer daughter somatic […]
July 15, 2020

Scientists discover way to stop spread of devastating childhood cancer

Researchers at the University of East Anglia and the University of Manchester have made an important breakthrough that could lead to ‘kinder’ treatments for children with bone cancer, and save lives. Current treatment is grueling, with outdated chemotherapy cocktails and limb amputation. But despite all of this, the five-year survival […]
July 15, 2020

Multiple Purkinje cell types: A new logic of cerebellar organization in zebrafish

In a study published in PNAS, researchers from Karolinska Institutet, the Royal Institute of Technology (KTH), Nagoya University and Technische Universität Braunschweig show an undiscovered heterogeneity of adult zebrafish Purkinje cells, revealing the existence of anatomically and functionally distinct cell types. The cerebellum, sometimes referred to as the “tree of […]
July 15, 2020

Deconstructing glioblastoma complexity reveals its pattern of development

Brain cancers have long been thought of as being resistant to treatments because of the presence of multiple types of cancer cells within each tumor. A new study uncovers a cancer cell hierarchy that originates from a single cancer cell type, which can be targeted to slow cancer growth. The […]
July 15, 2020

Sodium found to regulate the biological clock of mice

A new study from McGill University shows that increases in the concentrations of blood sodium can have an influence on the biological clock of mice, opening new research avenues for potentially treating the negative effects associated with long-distance travel or shift work. The findings, published in Nature by former McGill Ph.D. student […]
July 15, 2020

Study Suggests Method to Starve Pancreatic Cancer Cells

A University of Michigan-led study is shedding new light on the way pancreatic cancer cells turn nearby connective tissue cells into co-conspirators in their deadly growth. The findings, which appear in Nature Metabolism, also suggest a new potential strategy against pancreatic cancer by identifying critical components of metabolic cross-talk between cells that might be […]
July 15, 2020

New Drug Combo Shows Promise in Fight Against High Cholesterol

If you’ve ever been diagnosed with high cholesterol, also known as hyperlipidemia, your doctor has probably prescribed a statin. And while statins have been the go-to drug for managing cholesterol for nearly 25 years, there’s a new weapon in the fight. Recent studies suggest that adding a new class of medications — either […]
July 15, 2020

Swap Meet

Researchers at Harvard Medical School, the Broad Institute of MIT and Harvard and Brigham and Women’s Hospital have uncovered a genetic mechanism that helps drive clonal hematopoiesis, a common age-related condition known to increase the risk of blood cancer and cardiovascular disease. In clonal hematopoiesis or CH, some blood stem […]
July 15, 2020

NFL outperforms other blood tests to predict and diagnose traumatic brain injury

A study from the National Institutes of Health showed that neurofilament light chain (NfL) delivered a superior diagnostic and prognostic performance as a blood biomarker for mild, moderate, and severe traumatic brain injury (TBI) when compared to blood proteins glial fibrillary acidic protein, tau, and ubiquitin c-terminal hydrolase-L1. The research […]
July 14, 2020

NIH researchers reframe dog-to-human aging comparisons

One of the most common misconceptions is that one human year equals seven dog years in terms of aging. However, this equivalency is misleading and has been consistently dismissed by veterinarians. A recent study, published in the journal Cell Systems(link is external), lays out a new framework for comparing dog-to-human aging. In […]
July 14, 2020

Fertility decline in ageing fruit flies is about ‘more than just sperm’

Research by the universities of Liverpool and Oxford reveals new insight into age-related fertility decline in male fruit flies. Infertility is one of the most striking effects of ageing. The impact of ageing on females’ fertility is more severe and much better understood, but it also affects males. Male reproductive […]
July 14, 2020

Living close to natural green space benefits gut bacteria of urban, formula-fed infants

First study of its kind shows formula-fed babies’ gut microbiomes more like those of breastfed babies when they live near natural environments. Living close to natural green space can mitigate some of the changes in infant gut bacteria associated with formula feeding, according to new research published in the journal Environment International. “Not […]
July 14, 2020

New database aims to make Alzheimer's diagnosis easier and earlier

Volunteers can add data with a five-minute online session. Do you get nervous when you can’t think of a word? Chances are it’s a momentary lapse, but problems with language are one of the symptoms that can indicate a neurodegenerative disorder like Alzheimer’s disease. Unfortunately, diagnosing these conditions requires scoring […]
July 14, 2020

Sensory Neurons Outside the Brain Drive Autistic Social Behaviors, Penn Study Suggests

A new study from Penn Medicine lends further evidence that the social behaviors tied to autism spectrum disorders (ASD) emerge from the abnormal function of sensory neurons outside the brain. It’s an important finding, published in the journal Cell Reports because peripheral sensory systems—which determine how we perceive the environment around us […]
July 14, 2020

New Model of Breast Cancer’s Causes Developed by UCSF-led Team

A new model of the causes of breast cancer, created by a team led by researchers at UC San Francisco, Genentech and Stanford University, is designed to capture the complex interrelationships between dozens of primary and secondary breast cancer causes and stimulate further research. Breast cancer is the most common […]