A new study finds men treated with hormone therapy for prostate cancer may experience temporary cognitive changes that can affect verbal fluency, visual recognition and visual memory. The study, published in the April 1, 2005 issue of CANCER, a peer-reviewed journal of the American Cancer Society, finds the degree of cognitive dysfunction appeared to be related to a decline in serum estradiol brought on by hormonal treatment.
Androgen-deprivation therapy (AD) is an effective adjuvant therapy in the treatment of prostate cancer. It effectively reduces levels of testosterone, which acts as a tumor stimulant, and estradiol, a form of estrogen in men. Testosterone and estradiol are known to be important in neurological development and play a particularly important role in the cognitive areas of learning and memory. Previous studies in women have shown declining estradiol levels to effect cognition but until now little data existed in men.
Eeva Salminen, M.D. and colleagues at Turku University Hospital in Turku, Finland investigated the relationship between serum estradiol and cognitive functioning in men with prostate cancer treated with androgen-deprivation therapy.
Amputees can learn to control a robotic arm with their minds
28.11.2017 | University of Chicago Medical Center
The importance of biodiversity in forests could increase due to climate change
17.11.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
An interdisciplinary group of researchers interfaced individual bacteria with a computer to build a hybrid bio-digital circuit - Study published in Nature Communications
Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...
Physicists in the Laboratory for Attosecond Physics (run jointly by LMU Munich and the Max Planck Institute for Quantum Optics) have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions of electrons in atoms.
The most basic of all physical interactions in nature is that between light and matter. This interaction takes place in attosecond times (i.e. billionths of a...
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