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Often when Dr. Thomas Valley sees a new patient in the intensive care unit at Michigan Medicine in Ann Arbor, he clamps a pulse oximeter on their finger – one of the many devices he uses to gauge their health and what course of care they might require, whether they are a child having seizures, a teenage car accident victim or an older person with Covid-19.

But recently, Valley, an assistant professor in the University of Michigan’s Division of Pulmonary and Critical Care, realized first-hand that the small device may yield less accurate oxygen readings in patients with dark skin.

Continue reading “Scientists are searching for solutions after studies show pulse oximeters don’t work as well for people of color” »

Mike George’s proposal for an autonomous fleet of modular emergency vehicles that can be arranged to form an on-the-go hospital has been awarded third place in Dezeen’s Future Mobility Competition powered by Arrival.

Called National Health Network Modular Hospital System, George’s proposal features a network of modular autonomous vehicles that can be combined into purpose-built clusters to enable hospitals to grow, adapt and respond to emergencies as effectively and flexibly as required.

Each module has a chassis and mobile platform, which can be customised with various interior components to respond to different medical situations. Each interior is designed to foster patient accessibility and comfort, as well as safety.

Although rare, people become infected by Naegleria fowleri when water containing the amoeba enters the body through the nose. It then travels to the brain, where it destroys brain tissue. This infection cannot spread from one person to another, and it cannot be contracted by swallowing contaminated water.

“These situations are extremely rare in the United States and in Missouri specifically, but it’s important for people to know that the infection is a possibility so they can seek medical care in a timely manner if related symptoms present,” Dr. George Turabelidze, Missouri’s state epidemiologist, said in a statement.

Symptoms can include severe headaches, fever, nausea, vomiting, stiff neck, seizures, altered mental state and hallucinations. Anyone who experiences these symptoms after swimming in a warm body of water should contact their health care provider immediately.

Serious psychological distress among U.S. adults remained fairly steady between April and July 2020, according to a research letter published online Nov. 23 in the Journal of the American Medical Association.

Emma E. McGinty, Ph.D., from the Johns Hopkins Bloomberg School of Public Health in Baltimore, and colleagues conducted two waves of the Johns Hopkins COVID-19 Civic Life and Public Health Survey (April 7 to April 13, 2020, and July 7 to July 22, 2020). Changes in psychological distress during the COVID-19 pandemic was evaluated among 1,337 U.S. adults.

The researchers found that 13 percent of respondents reported serious distress in July 2020 versus 14.2 percent in April 2020, with 72 percent of adults reporting serious distress in both waves. The prevalence of serious distress was highest among adults aged 18 to 29 years (25.4 percent in April versus 26.5 percent in July), those with income less than $35,000 (20.2 percent in April versus 21.2 percent in July), and Hispanic individuals (17.9 percent in April versus 19.2 percent in July) at both time points. Among those with serious distress, the most common stressors were concerns about contracting COVID-19 (65.9 percent) and pandemic effects on employment (65.1 percent) and finances (60.6 percent). Educational interruptions were a stressor among adults with serious distress attending college and/or with school-aged children (69 percent).

When the novel coronavirus roared into the U.S., mental health took a back seat to physical health. The number one priority was making sure hospitals wouldn’t be overwhelmed and that as many lives as possible could be saved.

Schools closed, remote work became the norm, restaurants shuttered and getting together with friends was no longer possible. The news cycle spun with story after story highlighting the ever-increasing number of cases and deaths, while unemployment soared to levels not seen since the Great Depression.

Any one of these shifts could be expected to cause an increase in mental health issues. Put together, they created a a perfect storm for a crisis.

New immune-evading Omicron subvariant BA.5 is now dominant in the U.S.—and previous heavy hitter “stealth Omicron” is now a shadow of its former self, according to federal health data released Tuesday.

BA.5 is estimated to have caused nearly 54% of COVID infections in the U.S. last week, according to data from the U.S. Centers for Disease Control and Prevention. Along with twin variant BA.4, it swept South Africa this spring thanks to its ability to evade immunity from both prior infection and vaccination.

The week before that, the two variants combined made up slightly more than half of U.S. cases. But last week, BA.5 accomplished the same feat alone, without the help of BA.4, which came in third at 16.5%.

A new UC Davis-led study sheds light on cell type-specific biomarkers, or signs, of melanoma. The research was recently published in the Journal of Investigative Dermatology.

Melanoma, the deadliest of the common skin cancers, is curable with early diagnosis and treatment. However, diagnosing melanoma clinically and under the microscope can be complicated by what are called melanocytic nevi—otherwise known as birth marks or moles that are non-cancerous. The development of melanoma is a multi-step process where “melanocytes,” or the cells in the skin that contain melanin, mutate and proliferate. Properly identifying melanoma at an early stage is critical for improved survival.

“The biomarkers of early melanoma evolution and their origin within the tumor and its microenvironment are a potential key to early diagnosis of melanoma,” said corresponding author of the study Maija Kiuru, associate professor of clinical dermatology and pathology at UC Davis Health. “To unravel the mystery, we used high-plex spatial RNA profiling to capture distinct gene expression patterns across cell types during melanoma development. This approach allows studying the expression of hundreds or thousands of genes without disrupting the native architecture of the tumor.”

Near-invisible graphene tattoos deliver high-speed and long-term continuous monitoring of blood pressure with high accuracy.

Wrapping a cuff around a patient’s arm and inflating it to measure blood pressure is one of the most routinely performed medical tests. It provides a quick and reliable assessment of cardiovascular health, as blood pressure is an independent predictor of all-cause mortality. But such arm cuffs are bulky and uncomfortable, making them impractical for continuous monitoring outside of clinics.

For this reason, researchers are developing cuffless alternatives with the goal of unlocking new possibilities for patient diagnostics and management, as well as providing new understanding of physiology. However, none of these tools has become a mainstay yet.

Continue reading “Graphene tattoo provides cuffless blood pressure monitoring” »

Chinese researchers have reportedly developed artificial intelligence (AI) that can read the minds of Chinese Communist Party (CCP) officials.

A video report detailed the software’s features and attributed it to the Hefei Comprehensive National Science Center, a relatively new institute focused on health and environment, energy research, information management and artificial intelligence.

The technology essentially tests one’s level of loyalty to the CCP. According to the center, it would “further solidify their [members’] confidence and determination to be grateful to the party, listen to the party and follow the party.”