Before cells divide, they have to unwind their chromosomes, copy of all of their DNA, and then wrap the DNA backup into chromosomes. When this process happens, cells often lose a little bit of DNA from the tips of their chromosomes. An enzyme, called telomerase, can help repair chromosomes by adding that DNA back onto the ends. Scientists are interested in telomerase because inhibiting it … Continue reading Cellular Secrets: Getting a look at how cells repair DNA
It is 2018, and we are well on our way towards curing cancer. Yet, as we look around, we find another nightmare haunting our society that is as formidable, if not more so, as it has been for centuries. That nightmare is opioid addiction. Overcoming opioid addiction is notoriously difficult, because of the excruciating symptoms associated with the withdrawal process, during which the only aid … Continue reading The FDA Approves the First Non-Opioid Drug to Ease Opioid Withdrawal Symptoms
For the first time, an inherited disorder has been reversed in babies before birth. “There are a number of conditions for which we would seek treatment in utero, but traditionally these have been non-genetic, non-inherited conditions,” Dr. Maisa Feghali, an assistant professor of maternal fetal medicine at the University of Pittsburgh, who was not involved in this study, told STAT. The disease, X-linked hypohidrotic ectodermal … Continue reading Successful treatment of a rare genetic disorder in the womb
by Fernanda Ferreira figures by Daniel Utter There are tens of thousands of buildings in São Paulo, the largest city in the Western hemisphere and Brazil’s financial center. From the sky, São Paulo looks like a fossilized forest of concrete trees. From the ground, it’s a pulsing behemoth, every avenue crammed with cars and people. The urban sprawl of Metropolitan São Paulo engulfs 39 municipalities … Continue reading Disease Never Sleeps: Yellow fever and the importance of vaccine stockpiles in emergency epidemic prevention
Is this apple safe to eat? Did that course of antibiotics work? To answer these types of questions we often need to know how to find and count illness-causing bacteria. Several bacteria counting techniques already exist. However, these approaches are slow and sensitive to laboratory conditions. Sam Nugen and his team from Cornell University are streamlining this process using a type of virus called phages, … Continue reading Viruses to the Rescue: Can we use viruses to find bacteria in our environment?
“A healthy mind in a health body.” It’s a saying that is often tossed around when discussing the link between exercise and brain health. Many studies have shown that exercise can improve cognitive performance. In a new study, researchers asked if body strength could be used to predict brain health. Hand grip strength has been used in a variety of studies to assess cardiovascular health, … Continue reading What does your grip strength say about your mental health?
Where scientists previously assumed a harsh transition from reef life to deep-sea life, scientists have found a ‘missing link’ in oceanic life: the rariphotic zone. Between 150m-300m below the surface, this ‘twilight zone’ in the Caribbean houses a ‘deep sea reef’, complete with 30 new invertebrate species and 71 new species of reef fish. It was previously thought that reef fish couldn’t survive this deep, and their presence is a surprise to everyone. Continue reading Who lives in the Twilight Zone under the sea?