Gene expression in specific cells and in specific regions can provide a more precise, neuroprotective approach than traditional treatments for neurological diseases. For multiple sclerosis, specifically, increasing cholesterol synthesis gene expression in astrocytes of the spinal cord can be a pathway to repair nerves that affect walking.
Pharmaceutical interventions are routinely prescribed to help people quit smoking. However, a new study by University of California San Diego School of Medicine researchers suggests that, despite promising results in clinical trials, smoking cessation drugs alone may not be improving the chances of successful quitting among smokers in general.
When researchers examined information on pairs of kidneys from the same donor in which 1 kidney was used but the other was discarded, the kidneys that were used tended to perform well even though they were similar in quality to their partner kidneys that were not used. The findings from a study provide further evidence that many of the donated kidneys that are discarded are in fact suitable for…
Tissue engineering, broadly described as the combination of cells, engineering methods and biochemical factors to create living biological tissue, is a fast-growing field that has the potential to significantly accelerate the advancement of medicine. In IDTechEx’s new report, Tissue Engineering 2018 – 2028: Technologies, Markets, Forecasts, the market for engineered living tissues is…
Researchers at the Duke Human Vaccine Institute have led an effort to develop a more accurate way to gauge the incidence of HIV infections in large populations, which will improve research and prevention strategies worldwide. The new method more correctly identifies new vs. long-standing infections – an important distinction for determining where to target public health measures and research,…
Using molecular scissors wrapped in a greasy delivery package, researchers have disrupted a gene variant that leads to deafness in mice. A single treatment involving injection of a genome editing cocktail prevented progressive hearing loss in young animals that would have otherwise gone deaf, Howard Hughes Medical Institute (HHMI) Investigator David Liu and colleagues report in the journal…
A new video by the University of Warwick highlights a bitter side to our sugar consumption at Christmas. The short film highlights how excessive consumption of sugar can affect our health – and how the sugar trade in the past and today has caused inequality and bloodshed. Today Britons eat too much sugar, on average 10 per cent of our daily calories come from sugar which is equivalent to 60 g…
The chemical compound “anle138b” eases cognitive deficits and normalizes gene expression in a mouse model of Alzheimer’s disease. Furthermore, the drug seems to close harmful openings in the membrane of nerve cells. An international collaboration reports these findings in the journal “EMBO Molecular Medicine”. The scientists suggest that anle138b should be validated in clinical trials…
Viral infections kill millions of people worldwide every year, but currently available antiviral drugs are limited in that they mostly act against one or a small handful of related viruses. A few broad-spectrum drugs that prevent viral entry into healthy cells exist, but they usually need to be taken continuously to prevent infection, and resistance through viral mutation is a serious risk. Now,…
Lawrence Livermore National Laboratory scientists and engineers have developed a “brain-on-a-chip” device aimed at testing and predicting the effects of biological and chemical agents, disease, or pharmaceutical drugs on the brain over time without the need for human or animal subjects. The device, part of the Lab’s iCHIP (in-vitro Chip-Based Human Investigational Platform) project,…
The holidays are supposed to be a happy time of the year, but many isolated seniors often are left feeling lonely — which can be harmful to their health. Loneliness is linked to serious medical conditions, including Alzheimer’s disease, stroke and heart disease as well as a higher risk of premature death. But loneliness can be easily overlooked as a health risk because healthcare providers…
Managing diabetes and high blood pressure can feel like a solitary enterprise dependent on relationships with objects (like pills or foods) and activities (like brisk walks or early bedtimes) instead of relationships with people, but a group of West Virginia University researchers is hoping to change that. The National Institutes of Health has awarded $450,000 to Ranjita Misra, a professor of…
For many of us, a flu shot is a fall routine. Roll up a sleeve, take a needle to the upper arm and hope this year’s vaccine matches whichever viruses circulate through the winter. The most common method to make that vaccine is now more than 70 years old. It requires growing viruses in special, pathogen-free chicken eggs. It’s not a quick and easy manufacturing process. And, at best, it…
Using light-emitting nanoparticles, Rutgers University-New Brunswick scientists have invented a highly effective method to detect tiny tumors and track their spread, potentially leading to earlier cancer detection and more precise treatment. The technology could improve patient cure rates and survival times. “We’ve always had this dream that we can track the progression of cancer in real…
When immune cells invade the tumor, this is usually considered a good sign because the body's own immune system appears to be responding to the cancer. In the case of certain types of breast cancer immune cells, namely so-called tumor-infiltrating lymphocytes (TILs), these can determine survival rates and predict the usefulness of chemotherapy. This was shown by the largest meta study on TIL…
Genentech researchers have identified an enzyme that shifts pancreatic cancer cells to a more aggressive, drug-resistant state by epigenetically modifying the cells’ chromatin. The study, which will be published in the Journal of Cell Biology, suggests that targeting this enzyme could make pancreatic cancer cells more vulnerable to existing therapies that currently have only limited effect…
Princeton researchers have discovered that when water flows around long plastic fibers, the flexible fiber strands tangle like a plate of spaghetti. Instead of a muddled mess, however, this product is in fact a highly useful material known as a hydrogel. Investigated for half a century, hydrogels are increasingly finding uses in areas including artificial tissue engineering, sustained drug…
Loyola University Medical Center is the only Chicago center that participated in the pivotal clinical trial of a groundbreaking cancer treatment that genetically engineers a patient's immune system to attack cancer cells. Patrick Stiff, MD, director of Loyola's Cardinal Bernardin Cancer Center, is a co-author of the study, published in the New England Journal of Medicine. The treatment used in…
If you're between 55 and 75 years old, you may want to try playing 3D platform games like Super Mario 64 to stave off mild cognitive impairment and perhaps even prevent Alzheimer's disease. That's the finding of a new Canadian study by Université de Montréal psychology professors Gregory West, Sylvie Belleville and Isabelle Peretz. Published in PLOS ONE, it was done in cooperation with the…
By no means are only elderly people at risk from heart diseases. Physically active individuals can also be affected, for example if a seemingly harmless flu bug spreads to the heart muscle. Should this remain undetected and if, for example, a builder continues with his strenuous job or an athlete carries on training, this can lead to chronic inflammation and in the worst case even to sudden…
A team of researchers led by the University of Minnesota has 3D printed lifelike artificial organ models that mimic the exact anatomical structure, mechanical properties, and look and feel of real organs. These patient-specific organ models, which include integrated soft sensors, can be used for practice surgeries to improve surgical outcomes in thousands of patients worldwide. “We are…
Johns Hopkins Kimmel Cancer Center researchers demonstrated that mice with ovarian cancer that received drugs to reactivate dormant genes along with other drugs that activate the immune system had a greater reduction of tumor burden and significantly longer survival than those that received any of the drugs alone. The study already spurred a clinical trial in ovarian cancer patients. The…
Determining where breast cancer ends and healthy tissue begins is a critical part of breast cancer surgery. Surgeons are used to working closely during surgery with anatomic pathologists who generate pathology reports that specify the surgical or tumor margin, an area of healthy tissue surrounding a tumor that also must be excised to ensure none of the tumor is left behind. This helps prevent the…
UV radiation has been known for a long time to be a risk factor for the development of skin cancer. Simultaneous infection with human papillomaviruses (HPV) has also been suspected to promote skin cancer, particularly in organ transplant recipients. Scientists from the German Cancer Research Center (DKFZ) have now been able to show for the first time in a natural system that papillomaviruses…
Fueled by physician staffing shortages and shifting employment patterns, temporary substitute physicians, so-called “locum tenens” physicians, become a regular sight in the medical field. But do they provide the same level of care as the doctors they are filling in for? The answer appears to be “yes,” at least when it comes to death rates in the month following treatment, according to…