Body

New research from Washington University School of Medicine in St. Louis suggests that radiation therapy can reprogram heart muscle cells to what appears to be a younger state, fixing electrical problems that cause a life-threatening arrhythmia without the need for a long-used, invasive procedure.

Sarbecoviruses have crossed into humans twice in the last decade, leading to the deadly SARS-CoV-1 outbreak in 2002-04 and the current COVID-19 pandemic, caused by the SARS-CoV-2 virus. A new study, published today, shows that the most recent common ancestor of these viruses existed more than 21,000 years ago, nearly 30 times older than previous estimates.

 

Mammalian sperm cannot fertilize an egg from the get-go. It’s an ability acquired only after insemination, during passage through the female reproductive tract, and requires two consecutive, time-sensitive processes to provide sperm with the physical and biochemical traits necessary to complete their fundamental job.

If heart attacks blared a warning signal, patients would have a better chance of avoiding them. That’s the idea behind a new imaging technique developed by a Spartan-led team of researchers.

“We shine light into an artery where we’ve delivered certain types of particles that can absorb that light,” said Bryan Smith, an associate professor in Michigan State University’s College of Engineering. “As a product of the release of that energy, they can literally shout back at us in ways that we can detect and use to create 3D images.”

DALLAS, July 26, 2021 -- People who are just beginning treatment for high blood pressure can benefit equally from two different classes of medicine - angiotensin-converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARBs) - yet ARBs may be less likely to cause medication side effects, according to an analysis of real-world data published today in Hypertension, an American Heart Association journal.

As opioid overdose deaths rose during the COVID-19 pandemic, people seeking treatment for opioid addiction had to wait nearly twice as long to begin methadone treatment in the United States than in Canada, a new Yale study has shown.

In both countries during the pandemic, about one in 10 methadone clinics were not accepting new patients and a third of those cited COVID-19 as the reason, according to research published July 23 in the journal JAMA Network Open.

An estimated 90,000 people in the United States died from drug overdoses last year.

A research team led by Dr Rosario Delgado from the UAB Department of Mathematics, in collaboration with the Hospital de Mataró, developed a new machine learning-based model that predicts the risk of mortality of intensive care unit patients according to their characteristics. The research was published in the latest edition of the journal Artificial Intelligence in Medicine, with a special mention as a "Position paper".

MUSC Hollings Cancer Center was one of 28 clinical sites around the world that participated in the LOTIS-2 trial to test the efficacy of Loncastuximab tesirine, a promising new treatment for aggressive B-cell lymphoma. The results of the single-arm, phase 2 trial were published online in May 2021 in Lancet Oncology.

Brian Hess, M.D., a Hollings researcher and lymphoma specialist at MUSC Health, was instrumental in bringing the phase 2 trial to Hollings. The manufacturer of Loncastuximab tesirine, ADC Therapeutics S.A., sponsored the trial.

In the evolving field of cancer biology and treatment, innovations in organ-on-a-chip microdevices allow researchers to discover more about the disease outside the human body. These organs-on-chips serve as a model of the state an actual cancer patient is in, thus allowing an opportunity to finding the correct treatment before administering it to the patient. At Texas A&M University, researchers are pushing these devices to new levels that could change the way clinicians approach cancer treatment, particularly ovarian cancer.

A study by researchers at the Texas A&M University School of Public Health shows that inexpensive and convenient devices such as silicone wristbands can be used to yield quantitative air quality data, which is particularly appealing for periods of susceptibility such as pregnancy.

The first clinical trial of a new dietary treatment for children and adults with severe forms of epilepsy, co-developed by UCL researchers and based on the ketogenic diet, has been successfully completed.

For the study, published in Brain Communications, clinicians evaluated the use of K.Vita®, (also known as Betashot), an oral liquid dietary supplement developed by UCL in collaboration with Royal Holloway, University of London, and Vitaflo International Ltd.

Gene therapy in mouse models showed promise in preventing vision loss or blindness from serious retinal injury including optic nerve damage, and from retinal disease including diabetic retinopathy and glaucoma, Mount Sinai researchers report. Their study, published in the July 22 online publication of Cell, could transform treatment for those at risk of major vision loss from retinal degenerative diseases, which currently have no cure.

A form of gene therapy protects optic nerve cells and preserves vision in mouse models of glaucoma, according to research supported by NIH's National Eye Institute. The findings suggest a way forward for developing neuroprotective therapies for glaucoma, a leading cause of visual impairment and blindness. The report was published in Cell.

What The Study Did: This study included 647 patients with untreated nonmetastatic prostate cancer (269 patients during the pandemic and 378 from before the pandemic). During the initial COVID-19 lockdown, only 1% of Black men underwent prostatectomy, while 26% of white patients did. Prior to the pandemic, there was no difference in the rate of prostatectomy between the two races (18% of Black men and 19% of white men). The lessons from this study suggest systemic inequities within health care and are likely applicable across medical specialties.