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Science News Archive May 2019 - Page 31


Page 31 of 42

New clues about how ancient galaxies lit up the universe

New observations using NASA's Spitzer Space Telescope reveal that some of the earliest galaxies in the Universe were significantly brighter than anticipated. The excess light suggests that these galaxies released high amounts of ionising radiation, which may have played a key role in the Epoch of Reionisation.

SourceRoyal Astronomical Society·JournalMonthly Notices of the Royal Astronomical Society·DateMay 9, 2019

NIH trial tests long-acting HIV medication for people unable to stick to daily regimens

The LATITUDE study evaluates the effectiveness of a combination of two experimental injectable formulations of antiretroviral drugs in managing HIV infection. Volunteers will receive either conventional oral ART or long-acting injectable therapies, with the goal of achieving durable viral suppression and improved treatment adherence.

Location is everything for plant cell differentiation

In Arabidopsis thaliana, the location of proteins within a cell and the position of the cell itself play crucial roles in determining cell type. The study found that ATML1 protein accumulation is inhibited in internal cell layers, leading to epidermal cell differentiation. This post-transcriptional regulation enables plants to form a s...

SourceOsaka University·JournalDevelopment·DateMay 9, 2019

Inflammatory bowel disease during childhood linked to higher cancer rates and early death

A new study found that children with inflammatory bowel disease, including ulcerative colitis and Crohn's disease, have a higher risk of developing cancer and dying early compared to the general population. The study suggests that cancer surveillance and mental health assessment are crucial for young patients with these conditions.

SourceWiley·JournalAlimentary Pharmacology & Therapeutics·DateMay 9, 2019

Fragmented turtles

Scientists studied the impact of fragmentation on Dahl's toad headed turtle populations in Colombia, finding restricted gene flow and genetic erosion. They recommend gene flow restoration via genetic rescue to counteract these threats and provide guidance for this strategy.

SourceWildlife Conservation Society·JournalMolecular Ecology·DateMay 9, 2019

How the dengue virus replicates in infected cells

The dengue virus uses nonstructural protein 1 (NS1) to replicate in infected cells, with a key role in viral RNA replication and formation of the membranous replication organelle. A novel interaction between NS1 and NS4A-2K-4B is required for viral RNA replication but not for replication organelle formation.

SourcePLOS·JournalPLOS Pathogens·DateMay 9, 2019

New treatment could become first targeted therapy designed for 'untreatable' childhood brain cancer

Researchers have discovered a new type of drug that targets the genetic weakness in 'diffuse intrinsic pontine glioma', a devastating childhood brain cancer. The treatment also shows promise for patients with stone man syndrome, a rare genetic disease where muscles and ligaments turn to bone. Clinical trials are expected to begin in 2021.

SourceInstitute of Cancer Research·JournalCommunications Biology·DateMay 9, 2019

No developmental differences in children conceived via assisted reproductive technology

A study by Fertility Centers of Illinois found that children conceived through assisted reproductive technology (ART) achieve similar developmental milestones as those conceived naturally, with a slight advantage at 12 months. The study analyzed data from over 1,800 parents and showed no significant impact on childhood development.

SourceFertility Centers of Illinois·JournalFertility and Sterility·DateMay 8, 2019

Development of graphene with enhanced speed of high frequency signal transmission

Researchers at DGIST developed a graphene-based transmission line with improved electron speed, contributing to faster processing speeds in semiconductor and communication devices. The team increased device concentration inside graphene, reducing resistance and enhancing electrical characteristics.

SourceDGIST (Daegu Gyeongbuk Institute of Science and Technology)·JournalAdvanced Functional Materials·DateMay 8, 2019

Study shows MD Anderson-developed drug effective in overcoming ibrutinib resistance in mantle cell lymphona

Researchers at MD Anderson Cancer Center discovered a small molecule drug, IACS-10759, that targets metabolic reprogramming and inhibits OXPHOS, leading to marked growth inhibition in ibrutinib-resistant mantle cell lymphoma cells. The study provides hope for patients with this incurable B-cell lymphoma.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalScience Translational Medicine·DateMay 8, 2019

Grading conservation: Which reserves defend forests?

A recent study by Michigan State University researchers found that nature reserves close to cities are more effective at preventing deforestation than remote areas. The study evaluated China's protected areas and concluded that these reserves can sequester significant amounts of carbon dioxide, helping to combat global deforestation.

SourceMichigan State University·JournalEnvironmental Science and Pollution Research·DateMay 8, 2019