Researchers have found that an enzyme in the bacteria that causes cholera uses a previously unknown mechanism in providing the bacteria with energy. Because the enzyme is not found in most other organisms, including humans, the finding offers insights into how drugs might be created to kill the bacteria without harming humans.
Investigators have described a previously unknown biological mechanism in cells that prevents them from cannibalizing themselves for fuel. The mechanism involves the fuel used by cells under normal conditions and relies on an ongoing transfer of calcium between two cell components via an ion channel. Without this transfer, cells start consuming themselves as a way of to get enough energy.
Researchers at UT Southwestern Medical Center have uncovered the biological rationale for why large doses of corticosteroids given repeatedly over several weeks may help individuals with lupus, a chronic inflammatory disease that affects more than 1 million people in the U.S.
Apoptosis, programmed cell death, is essential to normal development, healthy immune system function, and cancer prevention. The process dramatically transforms cellular structures but the limitations of conventional microscopy methods have kept much about this structural reorganization a mystery.
A new study by Johns Hopkins researchers has found that insulin, the sugar-regulating hormone, is required for normal bone development and that it may provide a link between bone health and metabolic disease, such as diabetes.
Virginia Tech engineers and Tufts biologists have discovered internal soft-tissue movements of freely crawling caterpillars are massively out of sync with the external body movements.
New research, published in the journal Development, by Dr. Anthony-Samuel LaMantia, professor of Pharmacology & Physiology and director of the newly formed GW Institute for Neuroscience, and his colleagues have identified the stem cells that generate three critical classes of nerve cells – olfactory receptors (ORNs), vomeronasal (VRNs) and gonadotropin releasing hormone (GnRH) neurons – that are responsible for enabling animals and humans, to eat, interact socially and reproduce.
New research at the University of Haifa has made a breakthrough in identifying chemical substances released by mosquitoes' natural predators that function as warning signals for egg laying mosquitoes.
The Association for Molecular Pathology (AMP) participated in the Food and Drug Administration (FDA) Center for Devices and Radiological Health (CDRH) public meeting on the oversight of laboratory developed tests (LDTs). Dr. Karen Mann, President of AMP, served on the second panel of the meeting titled, Clinical Laboratory Challenges. Additionally, Dr. Elaine Lyon, Chair of the AMP Professional Relations Committee, presented public comments.
A major discovery, led by researchers from The George Washington University Medical Center, promises to revolutionize the way scientists think about key aspects of cellular lifecycle and offers a new avenue for cancer researchers to explore in their quest to one day slow down the progression of cancer.
Research finds that mice without working rods and cones can still see -- and not just light, but also patterns and images -- thanks to other photosensitive cells in the retina.
In cells, as in cities, disposing of garbage and recycling anything that can be reused is an essential service. In both city and cell, health problems can arise when the process breaks down.
Using ever-growing genome data, scientists with the Department of Energy’s (DOE) Oak Ridge National Laboratory and the University of Tennessee are tracing the evolution of the bacterial regulatory system that controls cellular motility, potentially giving researchers a method for predicting important cellular functions that will impact both medical and biotechnology research.
Scientists have learned how a gene controls cell division, a finding that could be useful for understanding why increasing numbers of children are being born with genital malformations.
Research of how Galapagos marine iguanas respond to El Niño could provide insight into how wildlife in the Gulf of Mexico will respond to the current oil spill. In emergencies, animals secrete corticosterone to help them cope. However, prolonged hormone production can also be lethal.
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