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Study reveals cancer immunotherapy patients at most risk of life-threatening side effects

Results will help guide care for many patients with advanced cancer

2021-04-12
(Press-News.org) BOSTON - Many patients with cancer receive immune checkpoint inhibitors that strengthen their immune response against tumor cells. While the medications can be life-saving, they can also cause potentially life-threatening side effects in internal organs. This double-edged sword makes it challenging for clinicians to decide who should be considered candidates for treatment. A new analysis led by researchers at Massachusetts General Hospital (MGH) indicates which patients are at elevated risk of side effects severe enough to require hospitalization. The findings are published in the END


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Study reveals crucial details on skin-related side effects of cancer immune therapies

2021-04-12
BOSTON - Immune checkpoint inhibitors, which boost the immune system's response against tumor cells, have transformed treatment for many advanced cancers, but short-term clinical trials and small observational studies have linked the medications with various side effects, most commonly involving the skin. A more comprehensive, population-level analysis now provides a thorough look at the extent of these side effects and provides insights on which patients may be more likely to experience them. The research was led by investigators at Massachusetts General ...

Researchers identify surface protein as a new osteosarcoma therapeutic target for antibody-drug conjugates

Researchers identify surface protein as a new osteosarcoma therapeutic target for antibody-drug conjugates
2021-04-12
Abstract #LB008 HOUSTON -- A preclinical study led by researchers at The University of Texas MD Anderson Cancer Center shows an antibody-drug conjugate (ADC) targeting surface protein MT1-MMP can act as a guided missile in eradicating osteosarcoma tumor cells without damaging normal tissues. This technology, using precision therapy targeting of cell-surface proteins through a Bicycle toxin conjugate (BTC), shows encouraging results for the treatment of osteosarcoma. Findings from the study were presented today by Yifei Wang, M.D., a postdoctoral fellow of Pediatrics Research, at the virtual ...

Differences in B cell responses to coronaviruses and other pathogens in children and adults

2021-04-12
Blood taken from a small group of children before the COVID-19 pandemic contains memory B cells that bind SARS-CoV-2 and weakly cross-react with other coronaviruses, a new study finds, while adult blood and tissue showed few such cells. "Further study of the role of cross-reactive memory B cell populations... will be important for ongoing improvement of vaccines to SARS-CoV-2, its viral variants, and other pathogens," the authors say. As the COVID-19 pandemic has continued, children have often exhibited faster viral clearance and lower viral antigen loads than adults; whether B cell repertoires against SARS-CoV-2 (and other pathogens) differ between children and ...

Bottom-up is the way forward for nitrogen reduction at institutions

Bottom-up is the way forward for nitrogen reduction at institutions
2021-04-12
WOODS HOLE, Mass. -- Nitrogen is an element basic for life -- plants need it, animals need it, it's in our DNA -- but when there's too much nitrogen in the environment, things can go haywire. On Cape Cod, excess nitrogen in estuaries and salt marshes can lead to algal blooms, fish kills, and degradation of the environment. In a study published in Environmental Research Letters, scientists at the Marine Biological Laboratory (MBL) Ecosystems Center examine ways to reduce the nitrogen footprint of smaller institutions, like the MBL, by focusing on a bottom-up approach. "This bottom-up approach is all about balancing the needs of various stakeholders to come up with the best, ...

Road salts and other human sources are threatening world's freshwater supplies

Road salts and other human sources are threatening worlds freshwater supplies
2021-04-12
When winter storms threaten to make travel dangerous, people often turn to salt, spreading it liberally over highways, streets and sidewalks to melt snow and ice. Road salt is an important tool for safety, because many thousands of people die or are injured every year due to weather related accidents. But a new study led by Sujay Kaushal of the University of Maryland warns that introducing salt into the environment--whether it's for de-icing roads, fertilizing farmland or other purposes--releases toxic chemical cocktails that create a serious and growing global threat to our freshwater supply and human health. Previous studies by Kaushal and his team showed that added salts in the environment can interact with soils and infrastructure to release a cocktail of metals, ...

Researchers engineer probiotic yeast to produce beta-carotene

2021-04-12
Researchers have genetically engineered a probiotic yeast to produce beta-carotene in the guts of laboratory mice. The advance demonstrates the utility of work the researchers have done to detail how a suite of genetic engineering tools can be used to modify the yeast. "There are clear advantages to being able to engineer probiotics so that they produce the desired molecules right where they are needed," says Nathan Crook, corresponding author of the study and an assistant professor of chemical and biomolecular engineering at North Carolina State University. "You're not just delivering drugs or nutrients; you are effectively manufacturing the drugs or nutrients on site." The study focused ...

Spanking may affect the brain development of a child

2021-04-12
Spanking may affect a child's brain development in similar ways to more severe forms of violence, according to a new study led by Harvard researchers. The research, published recently in the journal Child Development, builds on existing studies that show heightened activity in certain regions of the brains of children who experience abuse in response to threat cues. The group found that children who had been spanked had a greater neural response in multiple regions of the prefrontal cortex (PFC), including in regions that are part of the salience network. These areas of the brain respond to cues in the environment that tend ...

UConn researchers find bubbles speed up energy transfer

2021-04-12
Energy flows through a system of atoms or molecules by a series of processes such as transfers, emissions, or decay. You can visualize some of these details like passing a ball (the energy) to someone else (another particle), except the pass happens quicker than the blink of an eye, so fast that the details about the exchange are not well understood. Imagine the same exchange happening in a busy room, with others bumping into you and generally complicating and slowing the pass. Then, imagine how much faster the exchange would be if everyone stepped back and created a safe bubble for the pass to happen unhindered. An international collaboration of scientists, including UConn Professor of Physics Nora Berrah and post-doctoral researcher ...

Antidepressant use in pregnancy tied to affective disorders in offspring; no causal link

Antidepressant use in pregnancy tied to affective disorders in offspring; no causal link
2021-04-12
New York, NY - Major depressive disorder is highly prevalent, with one in five people experiencing an episode at some point in their life, and is almost twice as common in women than in men. Antidepressants are usually given as a first-line treatment, including during pregnancy, either to prevent the recurrence of depression, or as acute treatment in newly depressed patients. Antidepressant use during pregnancy is widespread and since antidepressants cross the placenta and the blood-brain barrier, concern exists about potential long-term effects of intrauterine antidepressant exposure in the unborn child. Using the Danish National Registers to follow more than 42,000 singleton babies born ...

Binge-eating is not caused by stress-induced impulsivity

Binge-eating is not caused by stress-induced impulsivity
2021-04-12
Stress alters brain activity in self-inhibition areas yet doesn't trigger binge-eating, according to new research published in JNeurosci. People who binge-eat, a hallmark symptom of several eating disorders, can feel out of control and unable to stop, and often binge after stressful events. This led scientists to theorize stress impairs the brain regions responsible for inhibitory control -- the ability to stop what you are about to do or currently doing -- and triggers binge-eating. Westwater et al. tested this theory by using fMRI to measure the brain activity of women with anorexia, bulimia, or without ...

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[Press-News.org] Study reveals cancer immunotherapy patients at most risk of life-threatening side effects
Results will help guide care for many patients with advanced cancer