Using data from RNA sequencing, researchers have identified three molecular subtypes of Alzheimer's disease. Read More
Training neural circuits for tissue engineering at youthful stages generates a better response than training mature cells. Read More
In both human cell and mouse models of Huntington's disease, RNA from mitochondria was misplaced within spiny projection neurons. The stray RNAs, which looked different to cells than RNA derived from the cell nucleus, trigger an immune reaction that can lead to striatal cell type vulnerability. Read More
Study reports SARS-CoV-2, the virus that causes COVID-19, was well suited to making the jump from animals to humans by shapeshifting as it gained the ability to infect human cells. The virus's ability to infect humans occurred via exchanging gene fragments from a coronavirus that infected pangolins. The species-to-species transmission was a result of the ability of SARS-CoV-2 to bind to host cells through alterations to its genetic material. Read More
Researchers have identified 6,822 mutations of SARS-CoV-2 across a global dataset. 273 mutations have occurred repeatedly and independently. Of those, researchers investigated 31 mutations that have occurred at least ten times during the current pandemic. They found no evidence that any of the common mutations are increasing the ability of the virus to be transmitted. Some common mutations are neutral, but most are mildly detrimental to the virus. New evidence also suggests the viral spike protein, D614G, is not associated with increased viral transmission. Read More
Researchers isolated live SARS-CoV-2, the virus responsible for COVID-19, from the feces of patients who died as a result of coronavirus infection. Antigens to the virus were also found in post-mortem gastrointestinal surface cells. Isolating the live virus from fecal matter indicates evidence of the infectious virus in feces is a common manifestation of COVID-19. Researchers also found SARS-CoV-2 RNA on surfaces and bedding samples in hotel rooms used by two presymptomatic people who were later diagnosed with COVID-19. Read More
MicroRNAs that should attack SARS-CoV-2, the virus that causes COVID-19, diminish with age, and due to chronic health problems. The findings shed light on why those who are older, and those with health conditions are more susceptible to coronavirus. Read More
The ability to extinguish fear memories may rely on the flexibility of a person's DNA. Read More
SARS-CoV-2, the virus that causes COVID-19, can infect intestinal cells and multiple in the gastrointestinal system. When researchers added SARS-CoV-2 to intestinal organoids, they noticed rapid infection. Researchers say in addition to nasal and throat swabs, rectal swabs and stool samples could be key for coronavirus testing. Read More
Researchers have identified the structural basis for SARS-CoV-2 inhibition by the drug Remdesivir. The findings reveal a potential binding pattern that offers support for the design of new, more efficient, and specific anti-COVID-19 drugs. Read More
Researchers have identified specific cell types that appear to be the main targets of SARS-CoV-2, the virus that causes COVID-19. Using existing data on the RNA found in different types of cells, researchers were able to identify cells that expressed ACE2 and TMPRSS2, two proteins that assist coronavirus to enter human cells. Cells in the lungs, nasal passage and intestines appear to be the main targets for SARS-CoV-2. Read More
Long non-coding RNAs (lncRNAs) are significantly altered in depression in both sex and brain site-specific manners. The LINC00473 gene is downregulated in the prefrontal cortex of depressed females, but not males. Findings reveal the role of LINC00473 in sex-specific depression and may explain why females are more vulnerable to depressive symptoms than males. Read More
