Showing posts with label Beethoven. Show all posts
Showing posts with label Beethoven. Show all posts

Friday, April 12, 2024

What Really Killed the Famous Composer Beethoven?

 Recent discoveries involving DNA samples from Beethoven, a famous composer in the 19th century, have shown was his cause of death may have actually been. Before any research was conducted it was believed that he had passed from liver failure. Though, a lock of his hair revealed to scientists that he carried several risk factors for liver disease. The locks of hair collected were used to reconstruct Beethoven's genome. This revealed a variant of the gene PNPLA3 which is linked to liver failure. Scientists also discovered hepatitis B in his genome. Hepatitis B can also severely affect the liver. After these findings and having the prior knowledge of Beethoven's drinking habits, it was concluded that liver failure was his cause of death.

    It is insanely impressive that scientists can recreate a genome from someone who lived over 200 years ago. The ability to recreate genome sequences such as the scientists did in this case is a big stepping stone for understanding life, medical research, drug development, and evolutionary studies. It will be interesting to see how researchers use this technology as time progresses and what will come of it.

https://www.sciencenews.org/article/beethoven-hair-dna-composer-death

https://medlineplus.gov/genetics/gene/pnpla3/

Tuesday, March 26, 2024

Beethoven's Report Card


This entertaining article discussed if the famous musical composer from the late 16th century, had genetic predisposition to be a gifted musician, and if we have the means to confidently make such a claim. This sounds like a drunken bet someone would make at a bar, but whoever said scientist can't get out and have a good time?
    It turns out Beethoven's genome was already sequenced in 2023 by researchers using a lock of his hair (I'd love to hear the story of how someone got their hands on his hair!). So these researchers working together from different international universities were able to analyze the sequence and run a polygenic test on 'beat synchronization'; basically testing if Beethoven could hold a rhythym (a 1 and a 2 and a). Unfortunately, Beethoven's scores were nothing to write to the queen about. 
   So what's the value in this? Well obviously Beethoven was and is and exceptional musician, so this actually points us to the reliability of the test. Polygenic tests are used when multiple genes are thought to influence a disease, trait, or behaivor. We compile data from a population for these tests, and then can use them to predict the likeyhood or intensity someone will have said disease, trait, behaivor. It's a lot to get into, but two important things to know: is music ability influenced by our genes: partially, Yes. Can we rely on a tests to say whether someone's unborn child will be musically gifted: No, that would ruin the suprise.

Posted by Michael Breslin
 
Source: https://news.vumc.org/2024/03/26/beethovens-genes-reveal-low-predisposition-for-beat-synchronization/#:~:text=Ludwig%20van%20Beethoven%2C%20one%20of,Aesthetics%20in%20Frankfurt%20am%20Main%2C