Women who use estrogen replacement therapy to relieve menopausal symptoms are more likely to develop risk factors for potentially fatal irregular heartbeats (arrythmias) and heart attacks than women who take hormone therapy combining estrogen and progestin.
Prior to the early termination of the estrogen plus progestin arm of a nationwide womens health study, postmenopausal hormone replacement therapy was the most commonly prescribed medication in the United States, based on its alleged cholesterol-lowering and cardioprotective effects.
As a result, according to a study in the August issue of Annals of Epidemiology, a large number of women who used hormone replacement therapy may have been at increased risk -- and women who continue to use "unopposed" estrogen replacement remain at risk -- for developing heart problems.
Elizabeth Crown | EurekAlert!
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Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
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Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
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