A study by University of California, Santa Cruz researchers found a significant shift in the North Pacific Subtropical Gyre's food web since 1850, driven by changes in nitrogen sources. The shift may be related to the expansion and warming of open ocean gyres, which limits nutrient delivery to surface waters.
A new animal study led by researchers at the University of Pittsburgh School of Medicine found that TB lung lesions are surprisingly variable and independent of each other, regardless of whether the patient has clinically active or latent disease. The findings could point the way to new vaccines to prevent the hard-to-treat infection.
Researchers used high-resolution 3D imaging to study the disassembly process of the Golgi apparatus during cell division. The results show that the Golgi apparatus is tightly linked to the endoplasmic reticulum (ER) and redistributes into the ER during mitosis, resolving a basic cellular question.
Research found that reducing glucose metabolism weakens the ability of influenza viruses to infect mammalian cells in lab cultures. The study suggests that altering glucose metabolism may be a potential new approach to inhibit influenza viral infection.
A team of researchers has identified a critical balance point between tau and a master cellular regulator disrupted by amyloid-beta oligomers, driving adult neurons into cell cycle re-entry and eventual death. The study suggests that the protein complexes mTORC1 and mTORC2 play a key role in regulating this process.
The American Society for Cell Biology's Celldance 2013 video contest recognized top videos showcasing cellular processes. The first-place winner received a $500 cash prize for his time-lapse video of muscle cell differentiation, while two second-place winners shared a $250 cash prize each.
Researchers observed strong energy loss due to frictional effects near charge density waves. The study has significant implications for controlling nanoscale friction.
Researchers at Purdue University and Macquarie University have developed a way to control the length of time light from luminescent nanocrystals lingers, exponentially boosting detection capabilities. This technology can identify thousands of different target molecules simultaneously, far surpassing current limits.
Research reveals that fusion between cancer cells and macrophages empowers cancer cells to spread, forming tumors more rapidly. The study's findings suggest a new mechanism by which cancer progression is driven.
A study found that female prisoners in England and Wales self-harmed at an alarming rate, with women accounting for roughly half of all incidents. Self-harm was associated with a higher risk of suicide, particularly among male inmates.
Researchers from the University of Houston have discovered a catalyst that can quickly generate hydrogen from water using sunlight, producing twice as much hydrogen as oxygen. The technology has potential as a clean and renewable source of energy, but its efficiency rate is still too low to be commercially viable at present.
Researchers discovered a temporary tube-shaped structure in the phiX174 virus to deliver its DNA during infection. The tube attaches to host cell membranes and contains amino acids ideal for DNA transfer. This finding may be crucial for efficient genome translocation.
Research suggests nicotine drives cell invasion contributing to atherosclerosis and plaque formation in coronary arteries. E-cigarettes may not significantly reduce smokers' risk for heart disease, according to Brown University study findings.
Researchers have found that an experimental drug targeting tumor-associated macrophages decreases glioblastoma growth and extends the survival of laboratory mice with the cancer. The treatment increases rates of programmed cell death in both the macrophages and tumor cells, leading to reduced tumor proliferation and increased survival.
Scientists at the University of Edinburgh made a groundbreaking discovery that could help combat the spread of sleeping sickness. By understanding how parasites communicate with each other, researchers may be able to develop new drugs to disrupt these messages and limit the disease's transmission.
A study published in Nature Climate Change suggests that climate change will endanger the habitat of caribou, a species already threatened by the loss of critical lichen-rich environments. The research, led by University of Calgary professor Marco Musiani, analyzed DNA from reindeer and caribou populations across North America and Europe.
Caribou populations in climatically stable areas have the greatest genetic diversity, but climate change is expected to reduce viable habitat and lead to population isolation and fragmentation. As a result, caribou will lose the ability to adapt to change and become more vulnerable to extinction.