Transcription is a cellular process by which genetic information from DNA is copied to messenger RNA for protein production. But anticancer drugs and environmental chemicals can sometimes interrupt this flow of genetic information by causing modifications in DNA.
A scientific instrument featured on CSI and CSI: Miami for instant fingerprint analysis is forging another life in real-world medicine, helping during brain surgery and ensuring that cancer patients get effective doses of chemotherapy, a scientist said here today.
About 110 million light years away, the bright, barred spiral galaxy NGC 3259 was just forming stars in dark bands of dust and gas. Here on the part of the Earth where NASA's Goddard Space Flight Center would eventually be built, a plant-eating dinosaur sensed predators nearby and quickened its pace, leaving a deep imprint in the Cretaceous mud.
A new study highlights the protein Nek9 as a decisive factor in cell division, a fundamental process for both the development of an organism and tissue maintenance. Nek9 is shown to be required for a cell to be able to divide the chromosomes into two identical groups in order to ensure efficient and accurate cell division.
Scientists have developed "RNA switches" which allow them to specifically turn on and off genes in viruses. This will help to enhance regulation of gene therapy and viral therapy of cancer.
Two new species of forget-me-nots were discovered in the mountains of New Zealand. One of the species is known from the entrance of a few small caves at the base of limestone bluffs and the other from a single site in the forest. Both species are extremely rare and their conservation status is rated Nationally Critical.
(Phys.org) -- Virginia Commonwealth University School of Medicine researchers have uncovered a novel way by which the activity of voltage-gated potassium channels are regulated, according to a study published online last week in the Early Edition of the Proceedings of the National Academy of Sciences.
(Phys.org) -- A computer model that can identify the best molecular candidates for removing carbon dioxide, molecular nitrogen and other greenhouse gases from power plant flues has been developed by researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab), the University of California (UC) Berkeley and the University of Minnesota. The model is the first computational method to provide accurate simulations of the interactions between flue gases and a special variety of the gas-capturing molecular systems known as metal-organic frameworks (MOFs). It should greatly accelerate the search for new low-cost and efficient ways to burn coal without exacerbating global climate change.
Life in the world's oceans faces far greater change and risk of large-scale extinctions than at any previous time in human history, a team of the world's leading marine scientists has warned. The researchers have compared events which drove massive extinctions of sea life in the past with what is observed to be taking place in the seas and oceans globally today.
Many marine species will be harmed or won't survive if the levels of carbon dioxide continue to increase. Current protection policies and management practices are unlikely to be enough to save them. Unconventional, non-passive methods to conserve marine ecosystems need to be considered if various marine species are to survive.
Traditional remedies have always been controversial — lauded by their users and scrutinized by science. The CLS synchrotron lately has been the tool of choice to study these preparations for Dr. Kenneth Reimer, a professor at the Royal Military College of Canada and co-chair of the Bioaccessibility Research Canada. Reimer and his team have recently taken to examining traditional Indian Ayurvedic medicine to understand the bioaccessibility of the ingredients used in them. The remedies often consist of gemstones, plant and animal materials, and elementsof concern such as arsenic and lead.
An inexpensive antifungal drug, thiabendazole, slows tumor growth and shows promise as a chemotherapy for cancer. Scientists made this discovery by exploiting the evolutionary relatedness of yeast, frogs, mice and humans.
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