Treating Arthritis with ALGAE: A Miracle Discovery?
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Treating Arthritis with ALGAE: A Miracle Discovery?

News Staff — Swiss Federal Laboratories for Materials Science and Technology
Aug 25, 2017

One can only hope!

(Switzerland) — Arthritis is the most-widespread joint disease, with around 90 percent of all people over 65 being affected to varying degrees, but this degenerative disease is also widespread amongst younger people. In arthritis, the cartilage in the joint, a type of protective layer on bones that "lubricates" the joint, degenerates over time. This can be extremely painful for sufferers, because inflammatory reactions are associated with cartilage degeneration. In the later stages of the disease, bones are no longer adequately protected and can directly rub against each other. (Photo Credit: Pixabay)

Arthritis can affect all joints in the body, but most often affects the knee joint, hip joint and fingers. The disease has been considered incurable until now. Current treatment methods, such as anti-inflammatory drugs and painkillers, mainly address the symptoms. Often, the only remaining option is an operation to replace the affected joint with an artificial one.

Initial research results are encouraging

In laboratory tests, the team led by ETHZ researcher Marcy Zenobi-Wong and Empa researcher Katharina Maniura have now succeeded, together with SINTEF in Norway, in identifying a substance with the potential to halt cartilage degeneration in joints. This substance is the polysaccharide alginate extracted from the stems of brown algae … (Photo Credit: Flickr)

Alginate sulfate was also able to suppress the inflammatory reaction, again depending on the number of sulfate groups, and was able to down-regulate the expression of genes that trigger an inflammatory reaction in both human cartilage cells, known as chondrocytes, and in macrophages, the "scavenger cells" of our immune system. The algal molecules should therefore slow down cartilage degeneration. "The hope is that they can even stop this degeneration," says Empa researcher Markus Rottmar.

Further research work necessary

The alginate sulfates have so far only been tested in vitro, i.e. in the laboratory with cell cultures. However, the encouraging results mean that research will now continue. The next stage is to test the substances on animals. If this is also successful, clinical trials can then be conducted on people. These tests are, however, laborious and time-consuming. If everything were to work perfectly, it would still be a few years before arthritis patients could be treated with alginate sulfate.

Swiss Federal Laboratories for Materials Science and Technology

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