Lifeboat Foundation

Scientists have discovered what turns off the molecular alarm system that plays a critical role in our immune response.

The antibacterial superhero MR1 (MHC class I-related molecule) is a protein found in every cell of the human body that functions as a molecular alarm system, alerting powerful cells of our immune system, our white blood cells, when cancer or bacterial infection is present.

While prior groundbreaking research revealed the cellular machinery that MR1 depends on to activate, nothing was understood about how the MR1 alarm is “turned off” until now.

New research from the University of Cincinnati bolsters a hypothesis that Alzheimer’s disease is caused by a decline in levels of a specific protein, contrary to a prevailing theory that has been recently called into question.

UC researchers led by Alberto Espay, MD, and Andrea Sturchio, MD, in collaboration with the Karolinska Institute in Sweden, published the research on Oct. 4 in the Journal of Alzheimer’s Disease.

The research is focused on a protein called amyloid-beta. The protein normally carries out its functions in the brain in a form that is soluble, meaning dissolvable in water, but it sometimes hardens into clumps, known as amyloid plaques.

The advanced Computer Vision and Artificial Intelligence technologies in X·TERROIR allow enologists to make optimal decisions about the wine destination of grapes.

X·TERROIR technology makes possible cost-effective phenotypic profiling of every vine in the vineyard. This is an exponential increase over what is possible with current technology. The more information that Enologists have to work their magic… the more quality and value they can extract from the vineyard.

Continue reading “X·terroir” »

Himanshu Brahmbhatt was staring at the results of a clinical trial that looked too good to be true. A co-founder and CEO of EnGeneIC, a biopharmaceutical company, Brahmbhatt was running a small trial that was testing a fundamentally different approach to fighting cancer. Patients in the group had grim prospects. They had exhausted all other options. With nothing left to lose and not expecting any miracles, they enrolled in the trial. They wanted to give it one more chance. Now their scans showed their tumors had stopped progressing. Even more remarkable was they didn’t have the same type of tumors. They had malignancies affecting different organs—lungs, bladders, colons, pancreases—and yet, they uniformly did well.

“These people were facing death,” Brahmbhatt says. “Then we started seeing that they were actually succeeding. You could see in the scan that the tumor has stopped growing. It was a feeling of such extreme internal joy that it’s very difficult to describe.”

The results may have appeared miraculous, but they were anything but. They stemmed from fundamental research into cell division that forms the basis of the EnGeneIC process. A longtime advisor to the company, Bruce Stillman, professor of biochemistry and president and CEO of Cold Spring Harbor Laboratory, has been studying the process of DNA replication, which plays a key role in cell division and cancer progression.

Two groundbreaking studies recently published in the journals Nature and Genome Medicine found genetic signatures that explain ethnic disparities in the severity of prostate cancer, notably in Sub-Saharan Africa.

By genetically analyzing prostate cancer tumors from Australian, Brazilian, and South African donors, the team developed a new prostate cancer taxonomy (classification scheme) and cancer drivers that not only distinguish patients based on their genetic ancestry but also predict which cancers are likely to become life-threatening, a task that is currently difficult.

“Our understanding of prostate cancer has been severely limited by a research focus on Western populations,” said senior author Professor Vanessa Hayes, genomicist and Petre Chair of Prostate Cancer Research at the University of Sydney’s Charles Perkins Centre and Faculty of Medicine and Health in Australia. “Being of African descent, or from Africa, more than doubles a man’s risk for lethal prostate cancer. While genomics holds a critical key to unraveling contributing genetic and non-genetic factors, data for Africa has till now, been lacking.”

The devastating loss of a pair of newborns has provided critical insights into a rare set of blood types spotted for the first time in humans 40 years ago.

By unravelling the molecular identity of the relatively new blood type known as the Er system, a new study could hopefully prevent such tragedies in the future.

“This work demonstrates that even after all the research conducted to date, the simple red blood cell can still surprise us,” says University of Bristol cell biologist Ash Toye.

Summary: A newly discovered second stem cell population in the mouse brain is responsible for the production of new neurons in the olfactory bulb of adult mice.

Source: Heidelburg University.

In the brain of adult mammals, neural stem cells ensure that new nerve cells, i.e. neurons, are constantly formed. This process, known as adult neurogenesis, helps mice maintain their sense of smell.

Summary: Boosting omega-3 fatty acid intake helps to preserve brain health and improve cognition in middle age, a new study reports. For those with the Alzheimer’s associated APOE4 gene, omega-3 fatty acid intake was associated with greater hippocampal volume and less small vessel disease.

Source: UT San Antonio.

Eating cold-water fish and other sources of omega-3 fatty acids may preserve brain health and enhance cognition in middle age, new evidence indicates.

A multidisciplinary team from two Johns Hopkins University institutions, including neurotoxicologists and virologists from the Bloomberg School of Public Health and infectious disease specialists from the school of medicine, has found that organoids (tiny tissue cultures made from human cells that simulate whole organs) known as “mini-brains” can be infected by the SARS-CoV-2 virus that causes COVID-19.

The results, which suggest that the virus can infect human brain cells, were published online June 26, 2020, in the journal ALTEX: Alternatives to Animal Experimentation.

Early reports from Wuhan, China, the origin of the COVID-19 pandemic, have suggested that 36% of patients with the disease show neurological symptoms, but it has been unclear whether or not the virus infects human brain cells. In their study, the Johns Hopkins researchers demonstrated that certain human neurons express a receptor, ACE2, which is the same one that the SARS-CoV-2 virus uses to enter the lungs. Therefore, they surmised, ACE2 also might provide access to the brain.