In a study believed to have implications for children and adults suffering from Fetal Alcohol Syndrome, rat pups given alcohol during a period of rapid brain development demonstrated significant changes in circadian or 24-hour rhythms as adults. The alcohol dosage was the equivalent of several nights of binge drinking on the part of a pregnant woman, and it was given at a time during rat brain development (shortly after birth) equivalent to the third trimester of human fetal development.
Dr. David J. Earnest, Texas A&M University Health Sciences Center, presented the findings Sunday, April 3, at an American Association of Anatomists session on dissecting the biological clock during Experimental Biology 2005 in San Diego.
Dr. Earnest says the findings are significant for three reasons:
Fetal Alcohol syndrome (FAS) can occur in the offspring of mothers who abuse alcohol during pregnancy. Some of the deleterious effects of maternal alcohol use on the developing fetus include craniofacial alterations (e.g. a thin upper lip and a small nose) and defects in brain development. Animal studies examining the spectrum of alcohol-induced brain injuries have revealed that affected offspring are most vulnerable to the damaging effects of alcohol during the brain growth spurt period, which is the human equivalent of the third trimester and that these defects in brain development often persist into adulthood.
Sarah Goodwin | EurekAlert!
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The world's highest gain high power laser amplifier - by many orders of magnitude - has been developed in research led at the University of Strathclyde.
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Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
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Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
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An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
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