Researchers at Ruhr-University Bochum found that sildenafil, the active ingredient in Viagra, makes stiffened cardiac walls more elastic. The drug activates an enzyme that phosphorylates the giant protein titin, causing blood vessels to relax and improving diastolic distensibility.
Researchers found that patients with initial metastatic breast cancer tend to be older and have lower-grade tumors, while those with early relapse after treatment are younger and have more aggressive cancer. The study emphasizes the importance of increasing awareness about breast care and the need for novel therapeutic strategies to im...
Researchers found three genes linked to an increased risk of thyroid cancer, including PTEN, which is a tumor suppressor gene. The study recommends increased surveillance for children with PTEN mutation-causing Cowden syndrome-related disease.
Researchers found that pion decays would produce superluminal neutrinos only if energy and momentum were conserved. However, the OPERA experiment's results cannot be replicated under current physics. The creation of high-energy neutrinos is also supported by observations from IceCube.
A new study proposes four proactive management options for conservation of island bird species, including captive propagation and vaccination against diseases enhanced by climate change. The San Diego Zoo Wildlife Alliance highlights the importance of acting now to prevent long-term survival challenges faced by the island scrub-jay.
A mysterious line dividing two millipede species in northwest Tasmania reveals a 'border control' mechanism that surpasses human capabilities. The boundary is approximately 230 km long and meets at only one point, with the millipedes rarely entering each other's territory.
Researchers at Imperial College London found that UK's discarded wrapping paper and Christmas cards can be turned into high-grade biofuel, powering vehicles with lower greenhouse gas emissions. The study suggests that using this technology could provide a sustainable alternative to fossil fuels.
A Wayne State University researcher is studying the signaling process that triggers breast cancer transformation. The objective of his three-year study is to evaluate the potential roles of two small proteins in breast cancer progression.
The study suggests that facial expressions evolved as a physiological response to threats, but also took on social roles in human evolution. The authors propose the concept of 'exaptation' and 'ritualization,' where original functions changed over time to become social signals.