Unfortunately, I cannot create a summary of the requested article because the full text of the article titled "Neurodegenerative diseases need more mechanism-informed trials" from the journal Nature Medicine is not found in the search results provided. The search results only contain links to research centers and a list of publications with short abstracts, but not the article itself that you requested to be summarized. Without access to the full text of the article, I cannot comply with your request for factuality and verification of information solely from the given source. If you would provide me with the full text of the article or its abstract, I would like to create an accurate and concise summary in Slovak according to your specifications.