A womans risk of ovarian cancer rises significantly if she carries either of two previously unexamined variations in the gene that codes for the progesterone receptor, according to a team of researchers led by scientists from the Keck School of Medicine of the University of Southern California.
The study, which is being published in the January 5th issue of the Journal of the National Cancer Institute, was initially supposed to be a more in-depth look at one particular version-or allele-of the progesterone receptor gene (PGR). The PROGINS allele, says Celeste Leigh Pearce, a preventive medicine researcher from the USC/Norris Comprehensive Cancer Center and the papers first author, had previously been linked to a higher ovarian cancer risk as well as a lower breast cancer risk in women who carry it.
To see if the PROGINS allele did indeed confer a higher ovarian cancer risk on women, the researchers-led by the studys principal investigator, USC preventive medicine professor Malcolm Pike-first used biological samples collected by the Hawaii/Los Angeles Multiethnic Cohort Study. (The Multiethnic Cohort is one of the largest ongoing population studies in the world, and is led by Brian E. Henderson, M.D., the Kenneth T. Norris Jr. Chair in Cancer Prevention and dean of the Keck School of Medicine.) The scientists examined the variety of genetic variations found in the PGR gene as part of a long-term collaboration between USC researchers and those at the Broad Institute in Cambridge, MA, looking to ascertain if the PROGINS allele held a particular risk of ovarian cancer for women.
Jon Weiner | 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.
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.
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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.
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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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