Women who drink alcohol during pregnancy may put their daughters at a higher risk of breast cancer, according to researchers at Lombardi Cancer Center at Georgetown University Medical Center. Their findings were reported at the American Association for Cancer Research (AACR) Cancer Prevention meeting in Boston.
"Previous studies have shown a strong link between alcohol consumption and increased breast cancer risk, and this may be caused by alcohol increasing levels of circulating estrogen," said Anna Cabanes, PhD, instructor of oncology and lead author of the paper presented at the AACR meeting. "Our study shows that alcohol consumption during pregnancy is likely to increase not just the mothers breast cancer risk, but her daughters as well."
Hilakivi-Clarke and her colleague found that female rats exposed to alcohol in utero developed breast tumors at a significantly higher rate; their study also showed that the female offspring had higher breast density, and more estrogen receptors--both of which have been linked to higher breast cancer risk in humans. Rat mothers consuming alcohol during pregnancy had higher circulating estrogen levels, and high in utero estrogen levels have been linked to increased breast cancer risk both in humans and rats. The findings in the laboratory animals may be similar to what humans would experience, because the rat model used in the study mimics human breast cancer, Hilakivi-Clarke said.
Beth Porter | EurekAlert!
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Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
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Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
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For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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