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Science News Archive September 2019 - Page 2


Page 2 of 43

Bateman's cowbirds

A study by researchers at the University of Illinois found that male cowbirds exhibit greater variation in offspring production, conforming to Bateman's Principle. Surprisingly, approximately 75% of cowbirds were monogamous for the entire breeding season despite not providing food or resources to their young.

SourceUniversity of Illinois College of Liberal Arts & Sciences·JournalJournal of Evolutionary Biology·DateSep 30, 2019

Johns Hopkins researchers advance search for safer, easier way to deliver vision-saving gene therapy

Researchers have developed a new approach to delivering sight-saving gene therapy to the retina, using a small needle to inject harmless viruses into the suprachoroidal space. This method could provide a more permanent therapeutic option for patients with common diseases such as wet age-related macular degeneration and inherited retina...

SourceJohns Hopkins Medicine·JournalJournal of Clinical Investigation·DateSep 30, 2019

First-time pregnancy complications linked to increased risk of hypertension later in life

Researchers found that women who experience complications such as preterm births and preeclampsia during their first pregnancy are nearly twice more likely than women without complications to develop high blood pressure later in life. The study emphasizes the need for doctors to focus on knowing the health histories of women.

SourceNIH/National Heart, Lung and Blood Institute·JournalJournal of the American Heart Association·DateSep 30, 2019

Fish fathers exhibit signatures of 'baby brain' that may facilitate parental care behavior

A study of stickleback fish found that male parental care is accompanied by changes in gene activity in the brain, similar to those experienced by mammals. The researchers identified genes associated with mothering and aggression, suggesting a molecular link between fish and mammal parents.

The Lancet journals: Papers at ERS Congress 2019

The Lancet Respiratory Medicine published a series of papers on cystic fibrosis treatment, including new CFTR modulator drugs showing promise and improving patient outcomes. Additionally, a three-in-one inhaler therapy was found to improve lung function and reduce asthma attacks in patients with severe asthma.

SourceThe Lancet·JournalThe Lancet Respiratory Medicine·DateSep 30, 2019

Cornell researchers reveal molecular basis of vision

Researchers at Cornell University have solved the three-dimensional structure of a protein complex involved in vertebrate vision at atomic resolution, revealing how signals from photons are amplified in the eye. The study provides insights into G-protein-coupled receptors and their role in human vision, with potential implications for ...

SourceCornell University·JournalMolecular Cell·DateSep 30, 2019

Fruit flies live longer with combination drug treatment

A triple drug combination of lithium, trametinib, and rapamycin has been shown to extend the lifespan of fruit flies by 48%, a significant increase compared to previous studies. The treatment targets different cellular processes and may have potential benefits for preventing age-related diseases in humans.

SourceUniversity College London·JournalProceedings of the National Academy of Sciences·DateSep 30, 2019

Is this brain cell your 'mind's eye'?

Researchers suggest a structural connection between 'content circuits' in the cortex and 'switchboard circuits' that allocate awareness, mediated by L5p neurons. Studies demonstrate interaction between state and contents of consciousness in these cells.

SourceFrontiers·JournalFrontiers in Systems Neuroscience·DateSep 30, 2019

Georgia State research finds early life racial discrimination linked to depression, accelerated aging

A study led by Georgia State University researchers found that early life racial discrimination is linked to elevated depressive symptoms and accelerated aging processes in African American youth. The study, which analyzed data from over 800 African American families, suggests that experiences of racial discrimination may be driving a ...

SourceGeorgia State University·JournalHealth Psychology·DateSep 30, 2019

German fishermen's scepticism towards EU impedes compliance with its regulations

A game of chance experiment revealed that German commercial fishermen are more honest than students when not under suspicion. However, when told to report their results in favor of the EU, almost one in three fishermen answered dishonestly. The study highlights the importance of trust between fishermen and regulatory authorities.

Biologists track the invasion of herbicide-resistant weeds into southwestern Ontario

Researchers identified two mechanisms driving herbicide-resistant weed emergence in Ontario: pollen and seed dispersal via wind and water, and spontaneous genetic mutations. This study highlights the need for integrated management approaches to minimize gene flow and resistances, including thorough equipment cleaning and crop rotation.

SourceUniversity of Toronto·JournalProceedings of the National Academy of Sciences·DateSep 30, 2019

Veg 'nudge': an extra vegetarian option cuts meat consumption without denting food sales

A study found that doubling vegetarian options reduced meat-rich purchases by 40-80%. The results suggest tweaking food availability can influence people's decisions for human health and environmental preservation. No rebound effect was detected, meaning opting for a veggie lunch didn't lead to a compensatory meat-heavy dinner.

SourceUniversity of Cambridge·JournalProceedings of the National Academy of Sciences·DateSep 30, 2019

New clinical trial analyses predict response to benralizumab by patients with COPD

A new analysis of two international clinical trials predicts that benralizumab may be effective for a subpopulation of patients with moderate to very severe COPD who have elevated blood eosinophil counts and a history of frequent exacerbations. The study found no significant efficacy in reducing annual COPD exacerbation rates for patie...

SourceTemple University Health System·JournalThe Lancet Respiratory Medicine·DateSep 30, 2019