Marcin Czerwinski
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czerwinsmarcin.bsky.social
Marcin Czerwinski
@czerwinsmarcin.bsky.social
Researcher | glycobiology | blood groups | enviroment | photography digital and analog | Poland
I like the week date complication, quite an important feature for a retired person. Here is a 1975 automatic Omega that I inherited from my dad, with Polish day names (CZWartek is Thursday).
November 25, 2025 at 11:16 AM
The enzyme becomes overactivated, producing a lot of citrullinated proteins, which are detected by specific antibodies. When bound to the joint proteins, such antibodies activate immune cells. This leads to the tissue injury caused by active immune cells and specific proteins called cytokines.
November 24, 2025 at 2:39 PM
Rheumatoid arthritis (RA) usually starts with local inflammation, leading to (often small) damage to joints. Damaged joints release negatively charged polysaccharides called glycosaminoglycans, which activate the enzyme PAD4 (the main enzyme responsible for biochemical changes in RA).
November 24, 2025 at 2:39 PM
Kościół św. Jakuba i św. Agnieszki, w środku jeszcze piękniejszy.
November 23, 2025 at 9:23 PM
O ciekawe, poczytam!
November 15, 2025 at 10:37 PM
Czy są sekwencje DNA, które mogą służyć do indentyfikacji podobnych gstunków?
November 15, 2025 at 10:14 PM
Dzięki, następnym razem zrobię lepsze zdjęcie:).
November 15, 2025 at 8:59 PM
Great pic, Phil! My dad was an avid photographer; here is a photo from our vacation in the Tatra Mountains in 1968. The sitting boy is me:).
November 15, 2025 at 2:21 PM
Mój ulubiony!
November 13, 2025 at 12:31 PM
It was the Austrian-Italian border; the fighting continued here from May 1915 until October 1917. Some 10,000 people died in this area.
November 12, 2025 at 7:14 PM