The fundamentals of facial recognition
2014-03-25
When it comes to recognizing faces, humans are extraordinarily skillful. It's no surprise – after all, from the moment humans leave the womb, the infant brains already have a preference for faces, and over the course of a lifetime, the average person sees hundreds of thousands of faces.
Among scientists, however, the question of exactly how humans came to possess this amazing ability remains a divisive one, with some researchers claiming our extraordinary abilities result from the operation of mechanisms specialized just for faces, whereas others argue that recognition ...
Study finds gout drug may reduce risk of death
2014-03-25
(Boston)--In a recently to be published study in Annals of the Rheumatic Diseases, researchers have found the use of the drug allopurinol was associated with a reduced risk of death in hyperuricemic (gout) patients. The study, the first in a general population, has found the overall benefit of allopurinol on survival may outweigh the impact of rare serious adverse effects.
Researchers from the Section of Rheumatology and Clinical Epidemiology at Boston University School of Medicine (BUSM) contributed to this study.
Gout has been associated with an increased risk of ...
NOAA led study: Crude oil causes developmental abnormalities in large marine fish
2014-03-25
Crude oil from the 2010 Deepwater Horizon disaster causes severe defects in the developing hearts of bluefin and yellowfin tunas, according to a new study by a team of NOAA and academic scientists.
The findings, published in the Proceedings of the National Academy of Sciences on the 25th anniversary of the Exxon Valdez oil spill, show how the largest marine oil spill in United States history may have affected tunas and other species that spawned in oiled offshore habitats in the northern Gulf of Mexico.
Atlantic bluefin tuna, yellowfin tuna, and other large predatory ...
For neurons in the brain, identity can be used to predict location
2014-03-25
Cold Spring Harbor, NY – Throughout the world, there are many different types of people, and their identity can tell a lot about where they live. The type of job they work, the kind of car they drive, and the foods they eat can all be used to predict the country, the state, or maybe even the city a person lives in.
The brain is no different. There are many types of neurons, defined largely by the patterns of genes they use, and they "live" in numerous distinct brain regions. But researchers do not yet have a comprehensive understanding of these neuronal types and how ...
Scientists find a molecular clue to the complex mystery of auxin signaling in plants
2014-03-25
Wikipedia lists 65 adjectives that botanists use to describe the shapes of plant leaves. In English (rather than Latin) they mean the leaf is lance-shaped, spear-shaped, kidney-shaped, diamond shaped, arrow-head-shaped, egg-shaped, circular, spoon-shaped , heart-shaped, tear-drop-shaped or sickle-shaped — among other possibilities.
How does the plant "know" how to make these shapes? The answer is by controlling the distribution of a plant hormone called auxin, which determines the rate at which plant cells divide and lengthen.
But how can one molecule make so many ...
Innovative technique provides inexpensive, rapid and detailed analysis of proteins
2014-03-25
Proteins are vital participants in virtually all life processes, including growth, repair and signaling in cells; catalysis of chemical reactions and defense against infection. For these reasons, proteins can provide critical signposts of health and disease, provided they can be identified and assessed in a clinical setting.
Accurately characterizing proteins for diagnostic and therapeutic purposes has been an enormous challenge for the medical community. At the Biodesign Institute's Molecular Biomarkers Laboratory at Arizona State University, research focuses on the ...
Researchers take mathematical route to fighting viruses
2014-03-25
Mathematicians at the University of York have joined forces with experimentalists at the University of Leeds to take an important step in discovering how viruses make new copies of themselves during an infection.
The researchers have constructed a mathematical model that provides important new insights about the molecular mechanisms behind virus assembly which helps to explain the efficiency of their operation.
The discovery opens up new possibilities for the development of anti-viral therapies and could help in the treatment of a range of diseases from HIV and Hepatitis ...
A new concept for manufacturing wrinkling patterns on hard nano-film/soft-matter substrate
2014-03-25
Wrinkling is a common phenomenon for thin stiff film adhered on soft substrate. Various wrinkling phenomenon has been reported previously. Wu Dan, Yin Yajun, Xie Huimin,et al from Tsinghua University proposed a new method to control wrinkling and buckling of thin stiff film on soft substrate. It is found that the curve pattern on the soft substrate has obvious influence on the wrinkling distribution of the thin film/soft substrate. Their work, entitled "Controlling the surface buckling wrinkles by patterning the material system of hard-nano-film/soft-matter-substrate", ...
Psychiatric complications in women with PCOS often linked to menstrual irregularity
2014-03-25
(NEW YORK, NY, March 24, 2014) – Polycystic ovary syndrome (PCOS), a hormone imbalance that causes infertility, obesity, and excessive facial hair in women, can also lead to severe mental health issues including anxiety, depression, and eating disorders. A study supervised by Columbia University School of Nursing professor Nancy Reame, MSN, PhD, FAAN, and published in the Journal of Behavioral Health Services & Research, identifies the PCOS complications that may be most responsible for psychiatric problems. While weight gain and unwanted body hair can be distressing, irregular ...
Shorter sleepers are over-eaters
2014-03-25
Young children who sleep less eat more, which can lead to obesity and related health problems later in life, reports a new study by UCL researchers.
The study found that 16 month-old children who slept for less than 10 hours each day consumed on average 105kcal more per day than children who slept for more than 13 hours. This is an increase of around 10% from 982kcal to 1087kcal.
Associations between eating, weight and sleep have been reported previously in older children and adults, but the study, published in the International Journal of Obesity, is the first to directly ...
Instant immune booster dramatically improves outcome of bacterial meningitis and pneumonia
2014-03-25
AUDIO:
This is a podcast interview with Professor Schwaeble.
Click here for more information.
"I am really excited about this landmark discovery. We demonstrate that boosting the innate immune system can have a significant impact on the body's ability to defend itself against life-threatening infections" - Professor Wilhelm Schwaeble from the University of Leicester's Department of Infection, Immunity and Inflammation
IMAGES AND A PODCAST INTERVIEW WITH PROFESSOR SCHWAEBLE ...
Protein plays key role in infection by oral pathogen
2014-03-25
CAMBRIDGE, Mass., March 24 — Scientists at Forsyth, along with a colleague from Northwestern University, have discovered that the protein, Transgultaminase 2 (TG2), is a key component in the process of gum disease. TG2 is widely distributed inside and outside of human cells. The scientists found that blocking some associations of TG2 prevents the bacteria Porphyromonas gingivalis (PG) from adhering to cells. This insight may one day help lead to novel therapies to prevent gum disease caused by PG.
Periodontal, or gum, disease is one of the most common infectious diseases. ...
Studying crops, from outer space
2014-03-25
Washington, D.C.— Plants convert energy from sunlight into chemical energy during a process called photosynthesis. This energy is passed on to humans and animals that eat the plants, and thus photosynthesis is the primary source of energy for all life on Earth. But the photosynthetic activity of various regions is changing due to human interaction with the environment, including climate change, which makes large-scale studies of photosynthetic activity of interest. New research from a team including Carnegie's Joe Berry reveals a fundamentally new approach for measuring ...
Violent video games associated with increased aggression in children
2014-03-25
Bottom Line: Habitually playing violent video games appears to increase aggression in children, regardless of parental involvement and other factors.
Author: Douglas A. Gentile, Ph.D., of Iowa State University, Ames, and colleagues.
Background: More than 90 percent of American youths play video games, and many of these games depict violence, which is often portrayed as fun, justified and without negative consequences.
How the Study Was Conducted: The authors tracked children and adolescents in Singapore over three years on self-reported measures of gaming habits, ...
E-cigarettes not associated with more smokers quitting, reduced consumption
2014-03-25
Bottom Line: The use of electronic cigarettes (e-cigarettes) by smokers is not associated with greater rates of quitting cigarettes or reduced cigarette consumption after one year.
Author: Rachel A. Grana, Ph.D., M.P.H., and colleagues from the University California, San Francisco.
Background: E-cigarettes are promoted as smoking cessation tools, but studies of their effectiveness have been unconvincing.
How the Study Was Conducted: The authors analyzed self-reported data from 949 smokers (88 of the smokers used e-cigarettes at baseline) to determine if e-cigarettes ...
Natalizumab treatment in patients with MS associated with JC virus infection
2014-03-25
Treatment with natalizumab in patients with multiple sclerosis (MS) appears linked with JC virus (JCV) infection, which can lead to a rare and often fatal demyelinating disease of the central nervous system called progressive multifocal leukoencephalopathy (PML) that destroys the myelin that protects nerve cells. The movement of cells with JC virus into the blood stream may provide researchers with a possible reason why patients with MS develop PML
Since natalizumab was reintroduced as a biologic therapy for MS in 2006, more than 440 cases of PML have been reported. ...
Researchers issue state-of-the-state on genetic-based testing and treatment for breast cancer
2014-03-25
(Lebanon, NH, 03/24/2014)- Dartmouth researchers at its Norris Cotton Cancer Center have compiled a review of the role that information gathered through genetic testing plays in the diagnosis and treatment of breast cancer. The paper entitled "Personalized Therapy for Breast Cancer" was accepted on March 17, 2014, for publication in Clinical Genetics. The paper discusses targeted therapies, new biomarkers, and the quality of commercially available testing methods.
Genomic testing is changing the way breast cancer is diagnosed and treated. By examining a woman's genes ...
Excess weight at 1 year postpartum increases moms' risk for diabetes, heart problems
2014-03-25
TORONTO – 'Watch out for weight gain within a year of giving birth to prevent new risk of diabetes and cardiovascular disease.' That advice for women comes from a study published today in the journal Diabetes Care.
While it has long been believed that not losing 'baby weight' for several years after pregnancy carries long-term risks of diabetes and heart disease the research team at Mount Sinai Hospital, Toronto, aimed to test this theory by tracking risk factors and weight in the first 12 months after giving birth.
The team led by clinician-researcher Dr. Ravi ...
New drug raises potential for cancer treatment revolution
2014-03-25
A revolution in cancer treatment could soon be underway following a breakthrough that may lead to a dramatic improvement in cancer survival rates.
A new study at the University of Warwick, published today in the journal Angewandte Chemie International Edition, has developed a new drug that can manipulate the body's natural signalling and energy systems, allowing the body to attack and shut down cancerous cells.
Called ZL105, the drug is a compound based on the precious metal iridium. The study has found ZL105 could potentially replace currently used anticancer drugs, ...
Can virtual reality-based therapy help veterans overcome posttraumatic stress disorder?
2014-03-25
New Rochelle, NY, March 25, 2014—Posttraumatic stress disorder (PTSD) is common among military veterans and together with the often-related anxiety, depression, and psychological and emotional impairment can dramatically affect quality of life. A type of virtual reality (VR) treatment called Graded Exposure Therapy (GET) can improve PTSD symptoms and may also have a positive impact on these associated disorders, as described in an article in Cyberpsychology, Behavior, and Social Networking, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is ...
Electronic medication alerts designed with provider in mind reduce prescribing errors
2014-03-25
INDIANAPOLIS -- Changing how medication alerts are presented in electronic medical records resulted in safer prescribing, increased efficiency and reduced workload for health care providers who placed drug orders in a study published online in the Journal of the American Medical Informatics Association.
"The VA electronic medical record system is one of the most widely used and respected EMR systems in the country," said Alissa L. Russ, Ph.D., a human factors engineer who led the study. "This EMR is used by providers at over 150 VA hospitals. We are looking at ways to ...
Pesticides make the life of earthworms miserable
2014-03-25
Pesticides have a direct impact on the physiology and behaviour of earthworms, a Danish/French research team reports after having studied earthworms that were exposed to pesticides over generations.
"We see that the worms have developed methods to detoxify themselves, so that they can live in soil sprayed with fungicide. They spend a lot of energy on detoxifying, and that comes with a cost: The worms do not reach the same size as other worms, and we see that there are fewer of them in sprayed soil. An explanation could be that they are less successful at reproducing, ...
RI Hospital: Number of patients admitted with antibiotic-resistant infections is rising
2014-03-25
PROVIDENCE, R.I. – The emergence of community-acquired infections, such as urinary tract infections (UTI), due to strains resistant to common antibiotics are on the rise, according to Rhode Island Hospital researchers. The study is published online in the journal Antimicrobial Resistance and Infection Control.
"Over the last several years, we've seen an increase in the number of bacteria -- many of which are forms of E. coli -- that are resistant to commonly administered antibiotics," said Leonard Mermel, D.O., medical director of the department of epidemiology and infection ...
Twenty-five percent of breast cancer survivors report financial decline due to treatment
2014-03-25
ANN ARBOR, Mich. — Four years after being treated for breast cancer, a quarter of survivors say they are worse off financially, at least partly because of their treatment, according to a new study led by University of Michigan Comprehensive Cancer Center researchers.
In addition, 12 percent reported that they still have medical debt from their treatment.
Financial decline varied significantly by race, with Spanish-speaking Latinas most likely to be impacted. Debt was reported more frequently in English-speaking Latinas and Blacks, the study found. Results appear in ...
Blood test may help predict whether a child will become obese
2014-03-25
Scientists have found that a simple blood test, which can read DNA, could be used to predict obesity levels in children.
Researchers at the Universities of Southampton, Exeter and Plymouth used the test to assess the levels of epigenetic switches in the PGC1a gene – a gene that regulates fat storage in the body.
Epigenetic switches take place through a chemical change called DNA methylation which controls how genes work and is set during early life.
The Southampton team found that the test, when carried out on children at five years old, differentiates between children ...
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