Videnskab

Nyt og spændende #1

Jeg elsker at læse om nye og spændende forskningsresultater. Om de skøre og skæve, dem med potentiale og dem der lyder som en fjern fremtid. Her er et lille udpluk af hvad jeg er stødt på det seneste stykke tid.

Ny forskning tyder på at du skal ryge marihuana for at forbedre din hukommelse. I hvert fald hvis du er en gammel mus. I et tysk studie publiceret i Nature Communications gav forskerne lave doser af det aktive stof i marihuana (THC) til unge, voksne og gamle mus. Efter 28 dage kunne de voksne og gamle mus klare sig lige så godt som de unge mus (der ikke havde fået THC) i en række indlærings- og hukommelses tests. De unge mus, der havde fået THC, klarede sig derimod markant dårligere end deres jævnaldrene, ikke-rygende venner. Konklusionen fra artiklen gik dog mere på den molekylære mekanisme bag, nemlig at man muligvis kan behandle alders-relateret kognitiv forfald ved aktivering af cannabinoid receptor type 1.

Et hold amerikanske forskere har opfundet en kunstig livmoder, der på sigt skal kunne afhjælpe de alvorlige komplikationer, der er ofte ses hos for tidligt fødte børn. Den kunstige livmoder er indtil nu afprøvet med stor succes på lam og det er lykkes forskerne at “føde” sunde og raske lam, der blev indstalleret i den kunstige livmoder på et stadie, der svarer til et menneskefoster i uge 22-23. Studiet er publiceret i Nature Communications og er i den grad ny og banebrydende forskning, der samtidig skaber flere etiske dilemmaer, som jeg har skrevet mere om her.

Og indtil den kunstige livmoder bliver udviklet, så den kan gennemføre en hel graviditet i stuen, så er der måske en anden form for hjælp at hente for kvinder, der har mistet fertiliteten pga. f.eks. kræftbehandling. I et nyt studie publiceret i Nature Communications er forskere er nemlig lykkedes med at lave 3D printede æggestokke. De er indtil nu kun afprøvet på mus, som er blevet gravide og har født levende unger efter først at have fået fjernet deres egene æggestokke og derefter indsat et sæt 3D printede af slagsen.

Har du en ualmindelig stor trang til at snacke i løbet af dagen, så skyldes det måske en arvelig fejl i et af dine gener. En gruppe danske forskere fra Københavns Universitet har nemlig fundet en sammenhæng mellem en mutation i genet med det mundrette navn Fibroblast Growth Factor 21 (FGF21) og øget trang til at snacke. Studiet er publiceret i tidsskriftet Cell Metabolism og viser desuden at folk, der ikke bryder sig om slik (hvor har de mon støvet sådan nogle forsøgspersoner op?) har et øget niveau af FGF21 uden den føromtalte mutation. Måske vi skal droppe vores fordomme om at overvægt altid er selvforskyldt?

To nye studier, der er publiceret samtidig i Nature, er begge lykkedes med for første gang at lave blodstamceller i laboratoriet, der kan bruges til behandling af leukæmi og andre blod-sygdomme. Det ene studie tog udgangspunkt i hudceller fra et menneske, der blev genetisk modificeret først til inducerede pluripotente stamceller (over-stamceller om man vil) og dernæst specialiseret til blodstamceller. Det andet studie blev udført på mus og tog udgangspunkt i celler fra blodkar, der blev lavet om til blodstamceller. Der er fordele og ulemper ved begge metoder, men håbet er, at en af dem kan videreudvikles så f.eks. leukæmipatienter kan blive behandlet med deres egne celler i stedet for at skulle have en knoglemarvstrandplation.

 

20 thoughts on “Nyt og spændende #1

  1. I have to get across my respect for your kindness for individuals that actually need guidance on this one area. Your personal dedication to passing the message along ended up being incredibly effective and have usually allowed others just like me to reach their endeavors. This interesting information signifies much a person like me and further more to my office workers. Regards; from everyone of us.

  2. I simply wanted to jot down a simple note in order to express gratitude to you for these amazing ways you are sharing at this site. My extended internet lookup has at the end been compensated with extremely good content to talk about with my family members. I would suppose that many of us visitors are undeniably fortunate to dwell in a magnificent network with very many special people with great principles. I feel quite fortunate to have seen your weblog and look forward to some more entertaining minutes reading here. Thank you once more for a lot of things.

  3. A lot of thanks for every one of your hard work on this blog. My daughter takes pleasure in carrying out investigation and it’s really easy to see why. We learn all relating to the powerful tactic you convey powerful techniques on the website and therefore encourage contribution from some others on this article so my princess is truly discovering a whole lot. Have fun with the rest of the year. Your doing a dazzling job.

  4. I happen to be commenting to let you be aware of of the brilliant encounter my wife’s child went through browsing your webblog. She mastered such a lot of things, not to mention what it is like to have an amazing coaching mindset to let most people just master chosen very confusing things. You undoubtedly did more than her expectations. Thanks for providing such great, dependable, informative not to mention fun tips on the topic to Mary.

  5. Thanks a lot for giving everyone an exceptionally memorable opportunity to read from this site. It’s always very pleasurable plus full of fun for me and my office friends to visit your blog at the least three times in one week to study the new issues you will have. Not to mention, I am just certainly amazed with your splendid opinions you give. Some 1 ideas in this posting are undoubtedly the finest I have ever had.

  6. I’m writing to make you be aware of what a outstanding encounter my friend’s daughter developed studying your blog. She figured out numerous issues, including what it is like to have a marvelous giving character to let a number of people with ease learn some tortuous subject matter. You actually did more than visitors’ expectations. Many thanks for displaying such useful, trustworthy, educational and cool thoughts on the topic to Ethel.

  7. I as well as my pals were found to be checking the best tips and tricks on your website and all of the sudden I had a terrible feeling I never thanked the web site owner for them. My young men had been as a result glad to read through all of them and now have in actuality been taking advantage of those things. Many thanks for being so considerate as well as for going for variety of perfect tips most people are really desperate to know about. Our sincere apologies for not expressing appreciation to you sooner.

  8. I am only commenting to let you understand of the really good discovery my cousin’s girl gained checking your site. She mastered numerous issues, with the inclusion of what it’s like to have a wonderful coaching nature to make the rest really easily have an understanding of chosen complex matters. You undoubtedly surpassed my desires. Thank you for presenting those valuable, trusted, revealing and cool tips about your topic to Mary.

  9. I’m commenting to let you be aware of what a fine discovery our girl had going through your web page. She picked up a wide variety of things, which included what it is like to have a marvelous helping nature to get many others smoothly learn certain grueling subject areas. You really exceeded our expected results. I appreciate you for offering those practical, safe, informative and also cool guidance on that topic to Mary.

  10. I must show my respect for your kindness supporting men who require guidance on that situation. Your very own dedication to getting the solution along ended up being quite helpful and has frequently allowed somebody like me to arrive at their objectives. Your entire valuable facts denotes this much to me and additionally to my mates. Thanks a ton; from each one of us.

  11. I wanted to draft you the tiny note just to say thank you the moment again with the nice knowledge you have featured on this page. It has been simply remarkably generous of people like you to present publicly what exactly most people could have offered for sale as an e book in making some cash for themselves, even more so given that you might have done it in case you considered necessary. These smart ideas additionally worked to become a fantastic way to be sure that other individuals have the same keenness really like my very own to know a great deal more when it comes to this matter. I’m sure there are lots of more pleasant opportunities up front for many who see your site.

  12. I simply had to thank you so much again. I do not know what I could possibly have used without those suggestions discussed by you on my theme. It had been a real traumatic case in my view, however , noticing your well-written avenue you treated it made me to jump with gladness. Now i am happier for this advice and even expect you know what an amazing job you were providing educating many others via your site. Most likely you have never met all of us.

  13. Thank you so much for giving everyone such a splendid chance to check tips from this site. It is always very superb and as well , jam-packed with a lot of fun for me personally and my office co-workers to visit the blog minimum thrice per week to see the newest guides you have. And indeed, I’m so at all times satisfied with your staggering tactics you give. Some two tips in this article are rather the very best I’ve ever had.

  14. I truly wanted to develop a quick remark to be able to thank you for all the precious ideas you are placing here. My extensive internet search has at the end of the day been rewarded with pleasant points to share with my family and friends. I would assume that many of us readers actually are really fortunate to be in a magnificent community with very many marvellous individuals with beneficial tips. I feel very fortunate to have come across the webpages and look forward to many more enjoyable moments reading here. Thanks once more for all the details.

  15. I have to express my thanks to the writer for rescuing me from this particular trouble. As a result of browsing through the search engines and seeing recommendations which were not helpful, I thought my entire life was well over. Living minus the approaches to the difficulties you have fixed by means of this site is a critical case, as well as those that would have adversely damaged my career if I had not noticed the blog. Your mastery and kindness in touching all the pieces was crucial. I’m not sure what I would’ve done if I had not discovered such a subject like this. I’m able to at this time look forward to my future. Thanks a lot very much for the expert and result oriented help. I won’t hesitate to recommend your blog post to anybody who wants and needs assistance about this situation.

  16. My husband and i have been quite joyful Chris could do his web research through your precious recommendations he got while using the weblog. It is now and again perplexing just to always be giving for free tips and hints people might have been trying to sell. And we all figure out we now have the writer to give thanks to because of that. The illustrations you’ve made, the straightforward blog menu, the relationships your site assist to create – it is everything extraordinary, and it is helping our son and our family know that that topic is excellent, which is certainly incredibly indispensable. Thanks for all!

  17. Thanks so much for providing individuals with an exceptionally superb chance to read from this site. It’s usually so pleasurable and also jam-packed with amusement for me and my office mates to search your site a minimum of thrice in 7 days to learn the new issues you will have. Of course, I am also always fulfilled with the amazing strategies served by you. Certain two facts on this page are unquestionably the most effective I have had.

  18. I simply had to say thanks once more. I do not know what I might have used without these concepts contributed by you about that area. It absolutely was a frightful circumstance in my opinion, nevertheless viewing a well-written way you treated it forced me to jump over joy. I am thankful for this help as well as hope that you are aware of an amazing job you were accomplishing educating some other people using your site. More than likely you haven’t encountered all of us.

  19. I wish to express my respect for your kind-heartedness for individuals that really need guidance on this question. Your special dedication to passing the message all over ended up being amazingly informative and have encouraged guys just like me to realize their endeavors. This valuable help signifies a whole lot to me and extremely more to my office workers. Thank you; from everyone of us.

  20. I would like to get across my admiration for your kind-heartedness in support of people who really need help on your situation. Your real commitment to getting the message all-around turned out to be remarkably powerful and has continually encouraged others much like me to realize their desired goals. Your entire invaluable facts implies a great deal to me and further more to my peers. Thanks a ton; from each one of us.

Skriv et svar

Din e-mailadresse vil ikke blive publiceret. Krævede felter er markeret med *