Investigators have discovered that some type of protective system goes into action in some cases when a babys immune system is deficient. This discovery indicates a hidden safety net that might have far-reaching consequences for treating diseases of the immune system such as AIDS. The Mayo Clinic-led study was conducted with colleagues in Toronto and Baltimore, and is reported in the early online edition of the Feb. 1 Journal of Immunology.
The researchers studied 20 patients who as infants underwent heart transplantation and had their thymus removed. As a result the infants were deficient in T cells, the cells depleted in AIDS patients that are crucial to fighting viruses and cancer tumors. The researchers found that over a 10-year-period the infant transplant patients resisted the same infections that often kill adult AIDS patients. The transplant patients maintained their health even with low T cell counts. The finding could help improve treatments of AIDS, cancers and diseases of aging related to declining function of the immune system.
"We are very excited by this result," says Jeffrey Platt, M.D., the Mayo transplant researcher who led the team. "This will be the first step to discovering how to make the immune system work in patients who have severe defects in their immune systems or who have cancer."
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MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
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.
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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
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