Kidney function monitoring vital for people on lithium
2014-11-14
People with bipolar disorder who are being treated with the drug lithium are at risk of acute kidney damage and need careful monitoring, according to new research from the University of East Anglia (UEA) and Norfolk and Suffolk NHS Foundation Trust.
Lithium is a mainstay treatment for bipolar disorder and it is known that the drug can cause a loss of kidney function. The new research establishes the link between short-term exposure to high levels and potential damage to the kidneys.
It is still not known what the impact of more than a single exposure to high levels ...
DNA sequencing helps identify genetic defects in glaucoma
2014-11-14
Scientists from the University of Liverpool have sequenced the mitochondrial genome in glaucoma patients to help further understanding into the genetic basis for the disease.
Glaucoma is a major cause of irreversible blindness, affecting more than 60 million people worldwide, increasing to an estimated 79.6 million people by 2020. It is thought that the condition has genetic origins and many experiments have shown that new sequencing approaches could help understand how the condition develops.
Studies on primary open-angle glaucoma - the most common form of glaucoma ...
New insight into common cause of blindness
2014-11-14
Age-related Macular Degeneration (AMD) is the major cause of blindness in the western world, affecting around 50 million people. It has been shown that sufferers are genetically predisposed to develop the condition.
One of the most important risk associated genes is called complement factor H (CFH). This encodes a protein called factor H (FH) that is responsible for protecting our eyes from attack by part of our immune system, called the complement system. FH achieves this by sticking to tissues, and when it is present in sufficient quantities it prevents the complement ...
New mechanism for growth control discovered
2014-11-14
Animal growth is closely regulated by environmental factors such as nutrition. If the nutrition of a growing animal is limited, growth slows down and the eventual size of the animal remains smaller. Insulin-like signaling plays a key role in coordinating growth in response to dietary status in multicellular animals.
Doctoral student Kiran Hasygar and Assistant Professor Ville Hietakangas from the Department of Biosciences and Institute of Biotechnology, University of Helsinki, Finland, have now uncovered a new regulatory mechanism coordinating animal growth in response ...
Conventional therapies are less efficient in cancer patients carrying 'BRCA' mutations
2014-11-14
Prostate cancer patients carrying inherited mutations in the BRCA genes respond less well to conventional treatment, including surgery and/or radiotherapy - and they also have a lower survival rate than those who are non-carriers of these genetic mutations. Data from the study, which has been published in the journal European Urology, points to the need for new clinical trials aimed at targeting these mutations in order to tailor treatment for these patients.
The study has been led by David Olmos and Elena Castro at the Spanish National Cancer Research Centre (CNIO) ...
Expression of SIP1 protein indicates poor prognosis in pharyngeal cancer
2014-11-14
The expression of SIP1 protein in pharyngeal squamous cell carcinoma tumours often indicates an advanced tumour stage, a high risk of recurrence and a poor prognosis, according to research from the University of Eastern Finland. Based on the results, SIP1 is a potential new prognostic factor for clinical use, helping to single out patients with more aggressive tumour behaviour requiring more intensive therapy and closer follow-up. Ms Anna Jouppila-Mättö, MD, presented the results in her doctoral thesis.
Although pharyngeal squamous cell carcinoma (PSCC) is a ...
HIV risks high in Mexico City's male sex trade
2014-11-14
PROVIDENCE, R.I. [Brown University] -- A new study documents the stark health dangers of the male sex trade in the streets, hotels, and discotheques of Mexico City. Lead author and health economist Omar Galárraga's point in making the grim assessment of the legal but perilous market is to find an incentive that might reduce the spread of HIV and other diseases in the nation's community of men who have sex with men.
"It's a very highly at-risk population," said Galárraga, assistant professor of health services, policy and practice in the Brown University School ...
New form of crystalline order holds promise for thermoelectric applications
2014-11-14
Since the 1850's scientists have known that crystalline materials are organized into fourteen different basic lattice structures. However, a team of researchers from Vanderbilt University and Oak Ridge National Laboratory (ORNL) now reports that it has discovered an entirely new form of crystalline order that simultaneously exhibits both crystal and polycrystalline properties, which they describe as "interlaced crystals."
Writing in the Nov. 14 issue of the journal Nature Communications, the researchers describe finding this unusual arrangement of atoms while studying ...
Mission to discover hundreds of black holes could unlock secrets of the Universe
2014-11-14
A team of Cardiff University researchers have made a breakthrough in helping scientists discover hundreds of black holes throughout the universe.
When two detectors are switched on in the US next year, the Cardiff team hope their research will help scientists pick up the faint ripples of black hole collisions millions of years ago, known as gravitational waves.
Black holes cannot be seen, but scientists hope the revamped detectors - which act like giant microphones - will find remnants of black hole collisions.
Led by Dr Mark Hannam from the School of Physics and Astronomy, ...
Killing cancer by protecting normal cells
2014-11-14
(PHILADELPHIA) - Although radiation treatments have become much more refined in recent years, it remains a challenge to both sufficiently dose the tumor while sparing the surrounding tissue. A new anti-cancer drug, already in clinical development, may help address this issue by protecting normal cells - but not the cancer - from the effects of radiation. The research, published November 14th in Molecular Cancer Therapeutics, further suggests this drug may also be useful in treating accidental exposure to radiation.
"It was a stroke of luck that the drug that most effectively ...
Nonsmokers in automobiles are exposed to significant secondhand smoke
2014-11-14
Nonsmokers sitting in an automobile with a smoker for one hour had markers of significantly increased levels of carcinogens and other toxins in their urine, indicating that secondhand smoke in motor vehicles poses a potentially major health risk according to a groundbreaking study led by UC San Francisco researchers.
The nonsmoking passengers showed elevated levels of butadiene, acrylonitrile, benzene, methylating agents and ethylene oxide. This group of toxic chemicals is "thought to be the most important among the thousands in tobacco smoke that cause smoking-related ...
Scientists uncover vast numbers of DNA 'blind spots' that may hide cancer-causing mistakes
2014-11-14
Cancer Research UK scientists have found more than 400 'blind spots' in DNA which could hide cancer-causing gene faults, according to research published* today (Friday) in Cancer Research.
The researchers found hidden faults in areas that are tricky for gene-reading technology to decode. This technique, which unravels cancer's genetic blueprint, is an important part of the research that scientists carry out to understand more about cancer's biology.
By finding new ways to unlock these blind spots in the future, the researchers hope this will help us understand these ...
Warmest oceans ever recorded
2014-11-14
"This summer has seen the highest global mean sea surface temperatures ever recorded since their systematic measuring started. Temperatures even exceed those of the record-breaking 1998 El Niño year," says Axel Timmermann, climate scientist and professor, studying variability of the global climate system at the International Pacific Research Center, University of Hawaii at Manoa.
From 2000-2013 the global ocean surface temperature rise paused, in spite of increasing greenhouse gas concentrations. This period, referred to as the Global Warming Hiatus, raised a lot ...
Western researchers identify estrogen's role in regulating common health disease risks
2014-11-13
What makes some women more susceptible to heart disease than others?
To help answer that question, researchers at Western University's Robarts Research Institute have identified that an estrogen receptor, previously shown to regulate blood pressure in women, also plays an important role in regulating low-density lipoprotein (LDL) cholesterol levels. LDL, also known as bad cholesterol, drives the process that leads to heart disease.
This finding provides evidence that the hormone estrogen plays a key role in regulating two of the most common risk factors for heart disease ...
New Alzheimer's-related memory disorder identified
2014-11-13
VIDEO:
A multi-institutional study has defined and established criteria for a new neurological disease closely resembling Alzheimer's disease called primary age-related tauopathy (PART). Patients with PART develop cognitive impairment that can...
Click here for more information.
LEXINGTON, Ky (Nov. 13, 2014) -- A multi-institutional study has defined and established criteria for a new neurological disease closely resembling Alzheimer's disease called primary age-related tauopathy ...
UH chemists develop porous molecules that bind greenhouse gases
2014-11-13
HOUSTON, Nov. 13, 2014 - A team of University of Houston (UH) chemistry researchers have developed a molecule that assembles spontaneously into a lightweight structure with microscopic pores capable of binding large quantities of several potent greenhouse gases.
"Greenhouse gases, such a carbon dioxide, have received much attention lately because of their potential to dramatically affect Earth's climate, primarily the temperature of the planet," said Ognjen Miljanić, a UH associate professor of chemistry and leader of the team.
While carbon dioxide presents the ...
'Tis the season to indulge in walnuts
2014-11-13
(SACRAMENTO, Calif.) -- Researchers at UC Davis and other institutions have found that diets rich in whole walnuts or walnut oil slowed prostate cancer growth in mice. In addition, both walnuts and walnut oil reduced cholesterol and increased insulin sensitivity. The walnut diet also reduced levels of the hormone IGF-1, which had been previously implicated in both prostate and breast cancer. The study was published online in the Journal of Medicinal Food.
"For years, the United States government has been on a crusade against fat, and I think it's been to our detriment," ...
'Topological insulators' promising for spintronics, quantum computers
2014-11-13
WEST LAFAYETTE, Ind. - Researches have uncovered "smoking-gun" evidence to confirm the workings of an emerging class of materials that could make possible "spintronic" devices and practical quantum computers far more powerful than today's technologies.
The materials are called "topological insulators." Unlike ordinary materials that are either insulators or conductors, topological insulators are in some sense both at the same time - they are insulators inside but always conduct electricity via the surface. Specifically, the researchers have reported the clearest demonstration ...
Seismic hazard in the Puget Lowland, Washington state, USA
2014-11-13
Boulder, Colo., USA - Seismic hazards in the Puget Lowland of northwestern Washington include deep earthquakes associated with the Cascadia subduction zone and shallow earthquakes associated with crustal faults across the region. Research presented in Geosphere this month establishes not only that one of the more prominent crustal faults, the Darrington-Devils Mountain fault zone, displays evidence of strong earthquakes in the past, but that it will likely be a source of strong earthquakes in the future.
Paleoseismic investigations on the Darrington-Devils Mountain fault ...
Modified DNA backbone enables success of existing and novel oligonucleotide therapeutics
2014-11-13
New Rochelle, NY, November 13, 2014--The two U.S. FDA approved oligonucleotide-based drugs on the market both have a modified chemical backbone made of phosphorothioates. The therapeutic advantages of the phosphorothioate group and the new types of gene expression-regulation oligonucleotide drugs that it is enabling are detailed in a Review article in Nucleic Acid Therapeutics, a peer-reviewed journal from Mary Ann Liebert, Inc. publishers. The article is available free on the Nucleic Acid Therapeutics website until December 13, 2014.
In the article "Phosphorothioates, ...
Study: Fungus behind deadly disease in walnut trees mutates easily, complicating control
2014-11-13
WEST LAFAYETTE, Ind. - Researchers from Purdue and Colorado State universities have discovered that the fungus responsible for thousand cankers disease, a lethal affliction of walnut trees and related species, has a rich genetic diversity that may make the disease more difficult to control.
Adjunct assistant professor of forestry Keith Woeste and fellow researchers analyzed the genes of 209 samples of Geosmithia morbida from 17 regions of the U.S. to determine the genetic diversity of the fungus, its possible origin and how it spread throughout the West and to parts of ...
Study offers new clue into how anesthesia works
2014-11-13
Anesthesia, long considered a blessing to patients and surgeons, has been a mystery for much of its 160-plus-year history in the operating room.
No one could figure out how these drugs interact with the brain to block pain and induce a coma-like, memory-free state. The debate has divided the anesthesia research community into two camps: one that believes anesthetics primarily act on the cell membrane (the lipid bilayer) of nerve cells, perhaps altering it to the point that embedded proteins cannot function normally. The other says the membrane proteins themselves are ...
Aiming high: Tel Aviv University research leads to historic comet landing
2014-11-13
For the first time in history, a spacecraft has landed on a comet. The momentous event represents the culmination of 35 years of research on comets by Prof. Akiva Bar-Nun of Tel Aviv University's Department of Geosciences and other scientists working for the European Space Agency.
At 08:35 GMT on Wednesday, November 12, the European Space Agency's Rosetta satellite released its lander Philae towards Comet 67P/Churyumov-Gerasimenko, a large mass of ice and dust some 316 million miles from Earth. The descent took approximately seven hours, with a signal confirming touchdown ...
A beetle and its longtime fungal associate go rogue
2014-11-13
West Lafayette, Ind. (November 13, 2014): Scientists with the U.S. Forest Service and Colorado State University examined a fungus native to North America, the native beetle that carries it, and their host tree and found something surprising: Geosmithia morbida and the walnut twig beetle co-evolved and, while the beetle/fungus complex was once the equivalent of a hang nail for a black walnut tree, it has become lethal.
Research published today in the journal PLOS ONE by U.S. Forest Service scientist Keith Woeste, Colorado State University scientists Marcelo M. Zerillo ...
Total recall: The science behind it
2014-11-13
This news release is available in French. Montreal November 13, 2014 - Is it possible to change the amount of information the brain can store? Maybe, according to a new international study led by the Research Institute of the McGill University Health Centre (RI-MUHC). Their research has identified a molecule that puts a brake on brain processing and when removed, brain function and memory recall is improved. Published in the latest issue of Cell Reports, the study has implications for neurodevelopmental and neurodegenerative diseases, such as autism spectral disorders ...
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