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Immune System Boosted By Stem-Cell-Based Strategy In Mouse Model
Date: May-20-2013Raising hopes for cell-based therapies, UC San Francisco researchers have created the first functioning human thymus tissue from embryonic stem cells in the laboratory. The researchers showed that, in mice, the tissue can be used to foster the development of white blood cells the body needs to mount healthy immune responses and to prevent harmful autoimmune reactions...
Men With High-Testosterone More Likely To Choose Red In Competitions
Date: May-20-2013Why do so many sports players and athletes choose to wear the color red when they compete? A new study to be published in Psychological Science, a journal of the Association for Psychological Science, suggests that it may have to do with their testosterone levels. The new study, conducted by psychological scientist Daniel Farrelly of the University of Sunderland and colleagues, demonstrated that males who chose red as their color in a competitive task had higher testosterone levels than other males who chose blue...
20% Of Handbags Carry More Bacteria Than A Toilet
Date: May-20-2013Astonishingly, a high percentage of women's handbags carry more bacteria than the average toilet, says British company Initial Washroom Hygiene. The company reported that, on average, one in five handbags contains a significant amount of harmful bacteria that can pose a threat to human health. Technical Manager at Initial Hygiene, Peter Barratt, said: "Handbags come into regular contact with our hands and a variety of surfaces, so the risk of transferring different germs onto them is very high, especially as bags are rarely cleaned...
Major IVF Breakthrough - Time-Lapse Imaging
Date: May-20-2013A new IVF advance that significantly increases the chances of having a baby through artificial reproduction could bring hope to infertile couples across the country, according to an article published in Reproductive BioMedicine Online. A technology which records a series of images at regular intervals, known as time-lapse imaging, is now available for monitoring the development of in vitro fertilization (IVF) embryos before they're implanted in the womb. The first test tube baby was born in July 1978, in England...
Scientists Identify Another Gene Important To Morning Wake-Up Call
Date: May-20-2013Northwestern University scientists have shown a gene involved in neurodegenerative disease also plays a critical role in the proper function of the circadian clock. In a study of the common fruit fly, the researchers found the gene, called Ataxin-2, keeps the clock responsible for sleeping and waking on a 24-hour rhythm. Without the gene, the rhythm of the fruit fly's sleep-wake cycle is disturbed, making waking up on a regular schedule difficult for the fly...
Non-Invasive Procedure Aids IVF
Date: May-20-2013Elsevier, a world-leading provider of scientific, technical and medical information products and services, has announced the publication of a recent study in Reproductive BioMedicine Online on 5-day old human blastocysts showing that those with an abnormal chromosomal composition can be identified by the rate at which they have developed to blastocysts, thereby classifying the risk of genetic abnormality without a biopsy...
Caution Urged Over Use Of New Genetic Sequencing Techniques By European Society Of Human Genetics
Date: May-20-2013The use of genome-wide analysis (GWA), where the entirety of an individual's DNA is examined to look for the genomic mutations or variants which can cause health problems is a massively useful technology for diagnosing disease. However, it can also pose major ethical problems if used incorrectly, say new recommendations from the European Society of Human Genetics (ESHG) published on line today (16 May 2013) in the European Journal of Human Genetics...
Infections Can Trigger Hematopoiesis At Sites Outside The Bone Marrow - In The Liver, The Spleen Or The Skin
Date: May-20-2013Balanced hematopoiesis is essential for the function of the immune system. During fetal development, hematopoiesis takes place mainly in the liver and the spleen. Later the process is delegated to the bone marrow, and this tissue normally serves as the sole source of blood cells for the rest of one's lifetime. However, certain infections can reactivate hematopoiesis at sites other than the bone marrow, a process which is referred to as "extramedullary" hematopoiesis...
Association Between Genetic Risk For Schizophrenia And Reduced IQ
Date: May-20-2013The relationship between the heritable risk for schizophrenia and low intelligence (IQ) has not been clear. Schizophrenia is commonly associated with cognitive impairments that may cause functional disability. There are clues that reduced IQ may be linked to the risk for developing schizophrenia. For example, reduced cognitive ability may precede the onset of schizophrenia symptoms. Also, these deficits may be present in healthy relatives of people diagnosed with schizophrenia. In a remarkable new study published in Biological Psychiatry, Dr...
Researchers Visualize Memory Formation For The First Time In Zebrafish
Date: May-20-2013In our interaction with our environment we constantly refer to past experiences stored as memories to guide behavioral decisions. But how memories are formed, stored and then retrieved to assist decision-making remains a mystery. By observing whole-brain activity in live zebrafish, researchers from the RIKEN Brain Science Institute have visualized for the first time how information stored as long-term memory in the cerebral cortex is processed to guide behavioral choices. The study, published in the journal Neuron was carried out by Dr. Tazu Aoki and Dr...
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