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Health News >> Medical Science >> Biology and Biochemistry
Biology and Biochemistry News
Biology / Biochemistry News From Medical News Today
Yale researchers have identified an unusual molecular process in normal tissues that causes RNA molecules produced from separate genes to be clipped and stitched together. The discovery that these rearranged products exist in normal as well as cancerous cells potentially complicates the diagnosis of some cancers and raises the possibility that anti-cancer drugs like Gleevec could have predictable side effects. The work is reported in the journal Science.
Biology / Biochemistry News From Medical News Today
University of Texas Medical Branch at Galveston researchers have discovered a key biochemical link in the process by which the Ebola Zaire virus infects cells - a critical step to finding a way to treat the deadly disease produced by the virus. Ebola produces severe and often fatal hemorrhagic fever in its victims and inflicts mortality rates close to 90 percent in some outbreaks.
Interdisciplinary Volume On Biological Rhythms Serves As Both Primer And In-depth Resource, New Book
Biology / Biochemistry News From Medical News Today
A variety of organisms-from bacteria and fungi to plants and animals - have biological rhythms, where the timing and duration of fundamental biological processes is naturally adjusted to allow them to adapt and survive, even under fluctuating environmental conditions. In recent years, significant advances have been made to understand the molecular basis of these rhythms and how they translate into modifications in cellular physiology and organismal behavior.
Biology / Biochemistry News From Medical News Today
Microbial identification systems (MISs) are test systems that utilize multiple substrates and/or reagents to identify aerobic or anaerobic bacteria, yeasts, molds, or yeast-like algae grown from culture. MISs have become increasingly complex, which has resulted in the need for a greater number of quality control (QC) organisms to check positive and negative reactivity for all components.
Biology / Biochemistry News From Medical News Today
Emergent BioSolutions Inc. (NYSE:EBS) announced that it has received a contract from the Department of Health and Human Services (HHS) for over $24.3 million to fund the further development of Emergent's anthrax monoclonal antibody AVP-21D9.
Biology / Biochemistry News From Medical News Today
Victoria and New South Wales have put aside their competitive interstate rivalry to collaborate on a stem cell research project, as announced by Innovation Minister Gavin Jennings and NSW Minister for Science and Medical Research, Verity Firth.
Biology / Biochemistry News From Medical News Today
Why is it that the origins of many serious diseases remain a mystery? In considering that question, a scientist at the University of California, San Diego School of Medicine has come up with a unified molecular view of the indivisible unit of life, the cell, which may provide an answer. Reviewing findings from multiple disciplines, Jamey Marth, Ph.D.
Biology / Biochemistry News From Medical News Today
Dogs suffering from lymphoma will be able to receive the same type of medical treatment as their human counterparts, as North Carolina State University becomes the first university in the nation to offer canine bone marrow transplants in a clinical setting. Dr. Steven Suter, assistant professor of oncology in NC State's College of Veterinary Medicine, received three leukophoresis machines donated by the Mayo Clinic in Rochester, Minn.
Biology / Biochemistry News From Medical News Today
UCLA scientists have succeeded in making unique nanoscale droplets that are much smaller than a human cell and can potentially be used to deliver pharmaceuticals. "What we found that was unexpected was within each oil droplet there was also a water droplet - a double emulsion," said Timothy Deming, professor and chair of the UCLA Department of Bioengineering and a member of both the California NanoSystems Institute (CNSI) at UCLA and UCLA's Jonsson Cancer Center.
Biology / Biochemistry News From Medical News Today
Imagine having to copy an entire book by hand without missing a comma. Our cells face a similar task every time they divide. They must duplicate both their DNA and a subtle pattern of punctuation-like modifications on the DNA known as methylation. Scientists at Emory University School of Medicine have caught in action one of the tools mammalian cells use to maintain their pattern of methylation.
Biology / Biochemistry News From Medical News Today
Two studies published in the current issue of Cell Transplantation (17:6) examine the efficacy of transplanting bone marrow cells (BMCs) for the repair of heart tissue. The first study found that implanting adult cardiomyocytes (heart muscle cells) in combination with BMCs has two advantages over transplanting cardiomyocytes alone.
Biology / Biochemistry News From Medical News Today
Dr. Marcus Conrad of the Institute of Clinical Molecular Biology and Tumor Genetics at the Helmholtz Zentrum München has decrypted the molecular mechanism through which the death of cells is caused by oxidative stress. This knowledge opens novel perspectives to systematically explore the benefit of targeted therapeutic interventions in the cure of ageing and stress-related degenerative diseases.
Biology / Biochemistry News From Medical News Today
In a collaborative study at the University of California, San Diego, investigators from neurosciences, chemistry and medicine, as well as the San Diego Supercomputer Center (SDSC) have investigated how proteins involved in neurodegenerative diseases such as Alzheimer's and Parkinson's disease interact to form unique complexes. Their findings explain why Alzheimer's patients might develop Parkinson's, and vice versa.
Biology / Biochemistry News From Medical News Today
Current human exposure to bisphenol A (BPA), a chemical used in many polycarbonate plastics and epoxy resins, is of "some concern" for effects on development of the prostate gland and brain and for behavioral effects in fetuses, infants and children, according to a final report released today by the National Toxicology Program (NTP). The report provides the NTP's current opinion on BPA's potential to cause harm to human reproduction or development.
Biology / Biochemistry News From Medical News Today
A recent study (doi:10.1016/j.clim.2008.06.009) published in Clinical Immunology, the official journal of the Clinical Immunology Society (CIS), describes a new method enabling the detection of multiple parameters of single human cells. The report demonstrates the characterization of specific blood cells from an individual with type 1 diabetes, providing information about the role these cells might play in the development of the disease and during therapy.
Biology / Biochemistry News From Medical News Today
Yale molecular and evolutionary biologists in collaboration with Department of Energy scientists produced the full genome sequence of Trichoplax, one of nature's most primitive multicellular organisms, providing a new insight into the evolution of all higher animals.
Biology / Biochemistry News From Medical News Today
Treatments that ramp up production of the tiny "motors" that power cells may have promise for treating one of the most common forms of inherited neuromuscular disease, according to a report in the September Cell Metabolism, a Cell Press publication. Neuromuscular disorders caused by defects in those mitochondrial motors affect a large number of children and adults worldwide, but today remain without treatment, the researchers said.
Biology / Biochemistry News From Medical News Today
Why are not all hosts resistant to their parasites? Possibly, because the necessary defences are costly. Evolutionary biologists distinguish between long-term, evolutionary costs of possessing defences against parasites, and the short-term costs of using them. Yet they typically focus on the former in the search for constraints on the evolution of resistance. This article shows that short-term costs may be of equal evolutionary importance.
Biology / Biochemistry News From Medical News Today
The paper analyze the dynamics of human plague cases (caused by the bacterium Yersinia pestis) in Western United States. Using data for the last 56 years on human plague cases we show that the Pacific Decadal Oscillation (PDO) contribute to determining the dynamics of plague in this part of the world.
Biology / Biochemistry News From Medical News Today
The funding of a network of nine centers across the country that will use high tech screening methods to identify small molecules for use as probes to investigate the diverse functions of cells was announced recently by the National Institutes of Health (NIH).
Biology / Biochemistry News From Medical News Today
Integral Molecular, Inc. initiates a federally-funded program to discover new drugs to combat influenza infection. Sponsored by the National Institute of Allergy and Infectious Diseases, Integral Molecular's R&D program will utilize its proprietary Lipoparticle technology to discover new ways of inhibiting M2, a critical viral ion channel. The M2 ion channel is a validated drug target for all strains of influenza, including the most dangerous H5N1 pandemic strains.
Biology / Biochemistry News From Medical News Today
Humans live in societies consisting of a number of levels, from core social groups of 3-5 close relatives termed support cliques to larger, looser aggregations such as tribes that contain over 1000 individuals. Recent research has shown that these networks have a consistent structure; each subsequent level of the networks is 3-4 times the size of the preceding smaller grouping level.
Biology / Biochemistry News From Medical News Today
Internal clocks tell night-migrating birds when to fly. Many migratory birds travel alone in a series of nocturnal flights. A new study shows that an internal time-keeping system ensures that migrants remain on schedule. European redstarts that were captured during their return migration from Africa behaved like clockwork in continuously illuminated flight chambers offering all-day-round feeding opportunities.
Biology / Biochemistry News From Medical News Today
Hutchinson-Gilford progeria syndrome (HGPS) is a rare childhood disease that resembles premature aging, and few affected children reach their teenage years. It is caused by a mutation in the LMNA gene that leads to the formation of progerin - a mutant form of the protein prelamin A. Once made, both progerin and normal prelamin A have the molecule farnesyl attached to them. This addition is later removed from normal prelamin A, whereas it cannot be removed from progerin.
Biology / Biochemistry News From Medical News Today
The brown alga Fucus serratus is a key foundation species on rocky intertidal shores of Northern Europe. We sampled the same population off the coast of southern Norway in 2000 and 2008, and using 26 microsatellite loci, estimated changes in genetic diversity and effective population size (Ne).
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