Discovery opens doors to treating symptom that can cause the body to attack itself
Researchers at the University of Pennsylvania School of Medicine have identified a variant of the human gene for tumor necrosis factor-alpha (TNF-alpha) as the cause for photosensitivity in lupus patients. This discovery, which was presented today at the annual scientific meeting of the American College of Rheumatology, will not only help in treating photosensitivity, but will also advance research on treating this potentially damaging symptom and possibly point to one of the genetic causes of lupus.
Victoria Werth, MD Associate Professor of Dermatology and Medicine in Penn’s School of Medicine, working in collaboration with Kathleen E. Sullivan, MD, PhD, Associate Professor of Pediatrics, University of Pennsylvania School of Medicine, and attending physician in The Children’s Hospital of Philadelphia Division of Allergy and Immunology, identified a variant of the TNF-alpha promoter that showed increased activity when exposed to sunlight. This discovery is crucial to understanding photosensitivity and lupus because TNF-alpha has been shown to stimulate apoptosis, the process of cellular death. As skin cells die, intracellular proteins move to the cell’s surfaces where they stimulate an immune reaction. The immune system makes new antibodies against these proteins and triggers further inflammation, causing the body to attack its own internal organs - just from sunlight.
Jen Miller | University of Pennsylvania
Chronic stress induces fatal organ dysfunctions via a new neural circuit
21.08.2017 | Hokkaido University
New malaria analysis method reveals disease severity in minutes
14.08.2017 | University of British Columbia
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
16.08.2017 | Event News
04.08.2017 | Event News
26.07.2017 | Event News
21.08.2017 | Materials Sciences
21.08.2017 | Health and Medicine
21.08.2017 | Materials Sciences