Home»Tecnologie»Cosa rischia il cervello se si dorme poco?

Cosa rischia il cervello se si dorme poco?

Pinterest Google+

La scoperta, grazie ad uno studio condotto sui topi, è stata pubblicata sul “Journal of Neuroscience” da Michele Bellesi dell’Università Politecnica delle Marche.

Se la deprivazione di sonno diventa cronica, il cervello comincia a distruggere e a digerire le proprie cellule danneggiate. Questo comportamento nasce dal bisogno di difendersi, inizialmente ha anche degli effetti benefici, ma nel tempo rischia di aumentare il pericolo di ammalarsi di Alzheimer o di altri disturbi neurologici.

Durante la sperimentazione i ricercatori hanno confrontato il cervello di animali che dormivano quanto volevano con quello di roditori tenuti svegli per 8 ore e con quello di un altro gruppo che non dormiva da 5 giorni, concentrandosi soprattutto sull’attività delle cellule gliali che formano il “sistema di pulizia” del cervello.

Gli scienziati hanno lavorato in particolare sugli astrociti e sulle cellule microgliali che eliminano le cellule danneggiate e i loro rifiuti.

E’ emerso che sia le cellule microgliali che gli astrociti erano più attivi nei topi assonnati che in quelli riposati.

Gli autori sottolineano: “Un’attivazione microgliale sostenuta è stata osservata nella malattia di Alzheimer e in altre forme di neurodegenerazione”.

“Abbiamo dimostrato per la prima volta che porzioni di sinapsi vengono letteralmente mangiate dagli astrociti a causa della perdita di sonno”, spiega Bellesi.

Questo potrebbe rappresentare inizialmente una buona cosa, perché si è visto che le sinapsi colpite sono quelle più “anziane”, e quindi più “stanche”.

“Sono come vecchi mobili che probabilmente hanno bisogno di più attenzione e pulizia”.

Il problema, ribadisce l’autore, sembra piuttosto l’iperattivazione della microglia. Queste evidenze potrebbero spiegare perché una mancanza prolungata di sonno rende le persone più vulnerabili al rischio di demenza, conferma Agnès Nadjar dell’università di Bordeaux in Francia, citata dal ‘New Scientist’.

Non è ancora chiaro se dormire di più può proteggere il cervello o salvarlo dagli effetti delle notti in bianco, lo studio andrà quindi sicuramente approfondito.

Previous post

Rosmarino, un valido alleato per gli studenti

Next post

Stop al tour di Olivia Newton-John, il cancro è tornato


  1. 15/08/2018 at 12:12

    “This is one awesome blog article.Much thanks again. Cool.”

  2. 02/09/2018 at 14:48

    Like!! I blog quite often and I genuinely thank you for your information. The article has truly peaked my interest.

  3. It is in reality a great and useful piece of info. Thanks for sharing. 🙂

  4. 07/10/2018 at 21:55

    I believe you have noted some very interesting details, thankyou for the post. 🙂

  5. 激光是單一波段的光能 , 在同一時間發射 , 光線能量較為集中 , 能深入皮膚打擊患處之異常色素或血管 , 溫和地刺激皮膚內的骨膠原更生, 新生的骨膠原令您的膚質光澤柔嫩 , 煥然一新 , 抗老效果顯著。有效治療色斑(雀斑 , 太陽斑 , 咖啡斑 , 太田痣 , 紋身) , 血管問題 (葡萄色斑 , 微絲血管擴張) , 膚色不均 , 皮膚鬆弛 , 毛孔粗大 治療後皮膚會出現短暫的紅腫 , 要注意防曬及遵照醫生指示護理皮膚

  6. 空穴爆脂+RF – 泰富國安集團有限公司Top Group Limited 空穴爆脂+RF – 泰富國安集團有限公司Top Group Limited

  7. BURBERRY 【彩妝系列】絲柔絢彩唇膏 Lip Mist的商品介紹 BURBERRY,彩妝系列,絲柔絢彩唇膏 Lip Mist

  8. 28/10/2018 at 21:28

    It’s laborious to find knowledgeable folks on this matter, however you sound like you know what you’re speaking about! Thanks

  9. Liverpool captain Steven Gerrard is in contention for Tuesday’s trip to Wolves after returning ahead of schedule from injury. He was expected to be out for a fortnight. Liverpool skipper Steven Gerrard poised to return from injury at Wolves

  10. 06/11/2018 at 12:06

    Very nice post. I just stumbled upon your weblog and wished to mention that I have really enjoyed surfing around your blog posts. After all I’ll be subscribing in your feed and I’m hoping you write once more soon!

  11. 07/11/2018 at 14:47

    Does your blog have a contact page? I’m having trouble locating it but, I’d like to send you an e-mail. I’ve got some suggestions for your blog you might be interested in hearing. Either way, great website and I look forward to seeing it improve over time.

  12. AC Milan have also asked about Borini while Lazio are understood to be proposing a £1million loan fee with view to making the deal permanent for £4m at the end of the season. Lazio lining up move for Sunderland forward Fabio Borini in deal which could be worth as much as £4m

  13. 11/11/2018 at 9:56

    Hello there! Would you mind if I share your blog with my facebook group? There’s a lot of people that I think would really enjoy your content. Please let me know. Thank you

  14. 12/11/2018 at 7:42

    You made some first rate factors there. I looked on the web for the issue and located most individuals will go along with along with your website.

  15. This web site is really a stroll-via for all of the data you wanted about this and didn’t know who to ask. Glimpse right here, and you’ll undoubtedly uncover it.

  16. 13/11/2018 at 6:56

    Hi! Aw, this was a really nice post. In idea I would like to put in writing like this additionally – taking time and actual effort to make a very good article… but what can I say… I procrastinate alot and by no means seem to get something done.

  17. 16/11/2018 at 12:55

    Some times its a pain in the ass to read what people wrote but this website is real user genial ! .

  18. 17/11/2018 at 16:57

    After I initially commented I clicked the -Notify me when new comments are added- checkbox and now every time a comment is added I get four emails with the same comment. Is there any method you possibly can take away me from that service? Thanks!

  19. 17/11/2018 at 19:53

    Good web site! I really love how it is simple on my eyes and the data are well written. I am wondering how I could be notified whenever a new post has been made. I’ve subscribed to your feed which must do the trick! Have a nice day!

  20. 17/11/2018 at 21:38

    whoah this weblog is great i like reading your articles. Stay up the great paintings! You recognize, a lot of individuals are looking around for this information, you could aid them greatly.

  21. 18/11/2018 at 1:31

    It is best to take part in a contest for among the best blogs on the web. I’ll suggest this site!

  22. 18/11/2018 at 3:03

    Exceptional post however I was wanting to know if you could write a litte more on this subject? I’d be very thankful if you could elaborate a little bit more. Cheers!

  23. 18/11/2018 at 11:31

    Hi there just wanted to give you a quick heads up. The words in your article seem to be running off the screen in Ie. I’m not sure if this is a formatting issue or something to do with browser compatibility but I thought I’d post to let you know. The design and style look great though! Hope you get the problem solved soon. Many thanks

  24. 18/11/2018 at 21:56

    I’m really enjoying the design and layout of your website. It’s a very easy on the eyes which makes it much more pleasant for me to come here and visit more often. Did you hire out a developer to create your theme? Fantastic work!

  25. 18/11/2018 at 22:38

    Thank you, I’ve just been searching for info approximately this subject for a long time and yours is the best I have discovered so far. However, what about the bottom line? Are you sure concerning the source?

  26. 19/11/2018 at 2:18

    Hello there! Do you know if they make any plugins to assist with SEO? I’m trying to get my blog to rank for some targeted keywords but I’m not seeing very good results. If you know of any please share. Kudos!

  27. 19/11/2018 at 3:35

    After research a couple of of the weblog posts in your web site now, and I truly like your way of blogging. I bookmarked it to my bookmark web site checklist and will likely be checking back soon. Pls try my website as effectively and let me know what you think.

  28. The Premier League is crying out for new stars to sparkle yet our clubs are facing a task in convincing Europe’s elite that England is the place to be. Here, Sportsmail spotlights some of the stars in demand. Paul Pogba, Karim Benzema and Kevin De Bruyne… Who are the big names that could come to the Premier League this summer?

  29. 21/11/2018 at 8:26

    Hi! Someone in my Myspace group shared this website withus so I came to look it over. I’m definitely enjoying the information.I’m book-marking and will be tweeting this to my followers!Exceptional blog and fantastic design and style.

  30. Luiz’s mother, Regina Celia, showed little sympathy towards the striker, mocking his state of shock when he was shown the red card by referee Anthony Taylor at the Etihad Stadium. Chelsea star David Luiz’s mother mocks Man City striker Sergio Aguero after his horror tackle on her son 

  31. 25/11/2018 at 4:21

    If you’re still on the fence: grab your favorite earphones, head down to a Best Buy and ask to plug them into a Zune then an iPod and see which one sounds better to you, and which interface makes you smile more. Then you’ll know which is right for you.

  32. 25/11/2018 at 22:21

    Enjoyed reading through this, very good stuff, thankyou .

  33. 27/11/2018 at 23:05

    I don’t even know how I ended up here, but I thought this post was great. I do not know who you are but certainly you are going to a famous blogger if you aren’t already 😉 Cheers!|

  34. 30/11/2018 at 6:25

    I like what you guys are up too. Such clever work and reporting! Carry on the excellent works guys I’ve incorporated you guys to my blogroll. I think it will improve the value of my site 🙂

  35. 30/11/2018 at 22:55

    of course like your website but you have to check the spelling on quite a few of your posts. Several of them are rife with spelling problems and I find it very troublesome to tell the truth nevertheless I’ll certainly come back again.

  36. 01/12/2018 at 2:26

    This might be the proper blog for all who desires to be familiar with this topic.You know much its practically difficult to arguealong. Outstanding stuff, simply great!

  37. 03/12/2018 at 5:08

    I have read a few good stuff here. Certainly worth bookmarking for revisiting. I wonder how much effort you put to create such a great informative site.

  38. 04/12/2018 at 7:04

    I would like to thank you for the efforts you’ve put in writing this website. I am hoping the same high-grade site post from you in the upcoming as well. In fact your creative writing skills has encouraged me to get my own website now. Actually the blogging is spreading its wings rapidly. Your write up is a great example of it.

  39. I’ve been absent for a while, but now I remember why I used to love this blog. Thank you, I will try and check back more often. How frequently you update your website?

  40. 05/12/2018 at 13:19

    Spot on with this write-up, I truly assume this website wants far more consideration. I’ll probably be again to learn rather more, thanks for that info.

  41. 06/12/2018 at 3:42

    I really appreciate this post. I’ve been looking all over for this! Thank goodness I found it on Bing. You have made my day! Thanks again

  42. 06/12/2018 at 3:48

    Great post.Really thank you! Fantastic.

  43. 12/12/2018 at 2:08

    Hey there! Someone in my Myspace group shared this site with us so I came to take a look. I’m definitely enjoying the information. I’m book-marking and will be tweeting this to my followers! Outstanding blog and outstanding design and style.

  44. Undeniably believe that which you said. Your favorite reason appeared to be on the internet the simplest thing to be aware of. I say to you, I certainly get annoyed while people consider worries that they just don’t know about. You managed to hit the nail upon the top as well as defined out the whole thing without having side effect , people could take a signal. Will likely be back to get more. Thanks

  45. 14/12/2018 at 12:57

    I am continuously looking online for posts that can facilitate me. Thx!

  46. 15/12/2018 at 14:29

    It’s really a great and helpful piece of information. I’m glad that you shared this helpful info with us. Please keep us up to date like this. Thanks for sharing.

  47. After I initially commented I clicked the -Notify me when new comments are added- checkbox and now every time a remark is added I get 4 emails with the identical comment. Is there any manner you may remove me from that service? Thanks!

  48. 17/12/2018 at 6:39

    Hi there, just became alert to your blog through Google, and found that it’s truly informative. I am going to watch out for brussels. I’ll appreciate if you continue this in future. Numerous people will be benefited from your writing. Cheers!

  49. 18/12/2018 at 4:54

    At this time it looks like Expression Engine is the preferred blogging platform available right now. (from what I’ve read) Is that what you’re using on your blog?

  50. 18/12/2018 at 7:14

    I like what you guys are usually up too. Such clever work and exposure! Keep up the very good works guys I’ve you guys to blogroll.

  51. 18/12/2018 at 12:25

    Greetings from California! I’m bored at work so I decided to browse your website on my iphone during lunch break. I love the info you provide here and can’t wait to take a look when I get home. I’m amazed at how quick your blog loaded on my cell phone .. I’m not even using WIFI, just 3G .. Anyhow, very good site!

  52. Nice blog! Is your theme custom made or did you download it from somewhere? A design like yours with a few simple tweeks would really make my blog stand out. Please let me know where you got your design. Appreciate it

  53. Hello! I could have sworn I’ve been to this blog before but after browsing through some of the post I realized it’s new to me. Nonetheless, I’m definitely happy I found it and I’ll be book-marking and checking back often!

  54. Hi, i believe that i saw you visited my website so i got here to “return the desire”.I’m trying to find things to improve my web site!I assume its ok to make use of some of your concepts!!

  55. A lot of thanks for every one of your hard work on this web page. Ellie takes pleasure in working on research and it’s obvious why. I notice all about the compelling medium you create good secrets via this web blog and therefore improve contribution from other ones on the idea then our favorite daughter is in fact learning a great deal. Have fun with the remaining portion of the year. You’re doing a wonderful job.

  56. 23/12/2018 at 20:28

    I like the valuable info you provide in your articles. I will bookmark your weblog and check again here regularly. I am quite certain I’ll learn a lot of new stuff right here! Good luck for the next!

  57. Thank you for sharing superb informations. Your web-site is so cool. I’m impressed by the details that you’ve on this web site. It reveals how nicely you perceive this subject. Bookmarked this website page, will come back for more articles. You, my friend, ROCK! I found simply the info I already searched all over the place and just could not come across. What a perfect web-site.

  58. I have been absent for some time, but now I remember why I used to love this site. Thanks , I will try and check back more often. How frequently you update your web site?

  59. I do love the manner in which you have framed this specific concern and it really does present me some fodder for consideration. Nonetheless, from everything that I have seen, I simply just trust as other reviews stack on that people stay on point and don’t embark on a soap box of some other news du jour. Still, thank you for this excellent piece and though I do not agree with this in totality, I value your viewpoint.

  60. 24/12/2018 at 16:47

    I just like the helpful information you provide on your articles. I’ll bookmark your weblog and test once more right here frequently. I am quite sure I will be informed plenty of new stuff proper here! Best of luck for the following!

  61. It’s a shame you don’t have a donate button! I’d without a doubt donate to this outstanding blog! I suppose for now i’ll settle for bookmarking and adding your RSS feed to my Google account. I look forward to fresh updates and will talk about this website with my Facebook group. Chat soon!

  62. 26/12/2018 at 9:49

    I really like what you guys are up too. This type of clever work and exposure! Keep up the fantastic works guys I’ve added you guys to blogroll.

  63. 07/01/2019 at 0:09

    Hey very nice site!! Man .. Beautiful .. Amazing .. I will bookmark your website and take the feeds also…I’m happy to find so many useful info here in the post, we need develop more strategies in this regard, thanks for sharing. . . . . .

  64. 11/01/2019 at 6:32

    F*ckin’ amazing things here. I am very happy to look your post. Thank you a lot and i’m taking a look forward to touch you. Will you please drop me a e-mail?

  65. 11/01/2019 at 21:13

    Have you ever considered about including a little bit more than just your articles? I mean, what you say is fundamental and everything. Nevertheless imagine if you added some great visuals or videos to give your posts more, “pop”! Your content is excellent but with pics and video clips, this blog could undeniably be one of the greatest in its niche. Excellent blog!

  66. 13/01/2019 at 2:44

    Pretty component to content. I simply stumbled upon your web site and in accession capital to claim that I get in fact loved account your weblog posts. Anyway I’ll be subscribing to your augment and even I success you access constantly rapidly.

  67. Magnificent site. Lots of useful information here. I’m sending it to several friends ans also sharing in delicious. And of course, thanks for your sweat!

  68. 16/01/2019 at 22:52

    hello there and thank you for your information – I have definitely picked up anything new from right here. I did however experience a few technical points the usage of this web site, as I experienced to reload the web site a lot of times previous to I may just get it to load correctly. I had been brooding about in case your web hosting is OK? No longer that I’m complaining, but slow loading circumstances times will often affect your placement in google and could harm your high-quality rating if ads and ***********|advertising|advertising|advertising and *********** with Adwords. Well I am adding this RSS to my e-mail and can glance out for a lot extra of your respective intriguing content. Make sure you replace this again very soon..

  69. 19/01/2019 at 0:21

    Hey very cool site!! Man .. Beautiful .. Amazing .. I’ll bookmark your blog and take the feeds also…I’m happy to find a lot of useful info here in the post, we need develop more strategies in this regard, thanks for sharing. . . . . .

  70. 19/01/2019 at 13:23

    I have learn several good stuff here. Definitely worth bookmarking for revisiting. I surprise how a lot attempt you set to make this sort of excellent informative website.

Leave a reply

Il tuo indirizzo email non sarà pubblicato.