Transitioning through menopause is not accompanied by a decline in working memory and perceptual speed, according to a study appearing in the Sept. 23 issue of Neurology Journal. In the study, led by researchers at the Department of Preventive Medicine, Rush-Presbyterian-St. Lukes Medical Center in Chicago, 803 randomly selected Chicago-area African American and white women aged 40 to 55 were tested annually for loss of brain function over the course of six years. The study, begun in 1996, is the first longitudinal study to track cognitive performance during menopause.
Participant scores were compared annually for women in premenopausal, during menopause, and postmenopausal groups. According to a "Patient Page" on menopause and brain function that appears in the Neurology Journal issue, "If menopause harms brain function, the test scores should have gone down the most for the postmenopause group, less for the group in menopause and not at all for the group not yet in menopause. The study did not find that pattern of decline. In fact, most groups improved their scores over time. In those groups that did go down, the size of the decline was so small that it could not be linked to menopause."
"The study is important because it shows that there is little or no risk for immediate memory loss during perimenopause," said Sam Gandy, M.D., Ph.D., vice chair of the Alzheimers Associations Medical and Scientific Advisory Council, and director, Farber Institute for the Neurosciences of Thomas Jefferson University. "The issue for Alzheimers disease is that it begins a decade or more before clinical cognitive or psychological changes are apparent. There remains an issue of whether perimenopausal hormone replacement therapy (HRT) would be useful in preventing AD later on, and this study does not answer that question."
Elizabeth Wilson | EurekAlert!
New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)
Reusable carbon nanotubes could be the water filter of the future, says RIT study
30.03.2017 | Rochester Institute of Technology
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.
The researchers demonstrated the feasibility of using plasma to amplify short laser pulses of picojoule-level energy up to 100 millijoules, which is a 'gain'...
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.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
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.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
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...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
29.05.2017 | Earth Sciences
29.05.2017 | Life Sciences
29.05.2017 | Physics and Astronomy