<html> <p>Prions are abnormally folded proteins that are infectious, causing other normal proteins to misfold in the same way. The word "prion" is coined based on the phrase "proteinacious infectious particle".</p> <p><img src="https://steemitimages.com/DQmULytVJ54hSME29tMiiAnHkBo2ZDLsPGyZwLArZn5nod4/image.png" width="599" height="449"/></p> <p>Prions cause many transmissible spongiform encephalopathies, i.e. diseases that degenerate the brain, central nervous system, and their function. The commonly known Mad Cow Disease comes from prions in the central nervous system of cows. Once a misfolded protein forms, they act as a template for converting other normal proteins into prions. The prions accumulate and agglutinate, forming clumps that interfere with neurons. The transmission of signals in the nervous is interupted, resulting in nerve cell damage and death. Eventually, the brain gets a sponge-like appearance.</p> <p><img src="https://openi.nlm.nih.gov/imgs/512/342/2423184/PMC2423184_1746-6148-4-17-1.png" width="512" height="385"/></p> <p>As prions are many times smaller than bacteria or viruses, it makes it hard for any immune system to detect their presence and destroy them. In this case, the antigen is simply a misfolded protein - something that an immune system would overlook. Usual techniques of sterilization such as UV light and radiation are ineffective against prions.</p> <p>Fortunately, prions only form a small fraction of diseases.</p> <p><br></p> <p>Sources: </p> <p>1. http://www.news-medical.net/health/What-is-a-Prion.aspx</p> <p>2. https://en.wikipedia.org/wiki/Prion</p> <p>Images:</p> <p>1. https://www.macalester.edu/academics/psychology/whathap/ubnrp/tse10/introduction.html</p> <p>2. https://openi.nlm.nih.gov/imgs/512/342/2423184/</p> <p><br></p> <p>f2a60ef93dcc6357392c4837f1b446fbd64491f34782017b8658d4af43c5f0b9</p> </html>
| author | frostfractal |
|---|---|
| permlink | bacteria-viruses-but-what-is-a-prion |
| category | science |
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upped bro
| author | antoniomontilva |
|---|---|
| permlink | re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170726t160829139z |
| category | science |
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You are upvoted for giving the correct ans ie 24 triangles @bikash-tutor see the explantion.
| author | bikash-tutor |
|---|---|
| permlink | re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170726t165637814z |
| category | science |
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Nice! I like this short introduction very much. btw, it would be great to cite the reference :D
| author | mcw |
|---|---|
| permlink | re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170726t140347202z |
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Agreed, added the references and sources
| author | frostfractal |
|---|---|
| permlink | re-mcw-re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170727t025242825z |
| category | science |
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Nice Postings I am wait another post
| author | slempase | ||||||
|---|---|---|---|---|---|---|---|
| permlink | re-frostfractal-2017726t164215917z | ||||||
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great
| author | starmakers |
|---|---|
| permlink | re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170726t082405861z |
| category | science |
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Congratulations @frostfractal! You have completed some achievement on Steemit and have been rewarded with new badge(s) : [](http://steemitboard.com/@frostfractal) Award for the number of comments Click on any badge to view your own Board of Honor on SteemitBoard. For more information about SteemitBoard, click [here](https://steemit.com/@steemitboard) If you no longer want to receive notifications, reply to this comment with the word `STOP` > By upvoting this notification, you can help all Steemit users. Learn how [here](https://steemit.com/steemitboard/@steemitboard/http-i-cubeupload-com-7ciqeo-png)!
| author | steemitboard |
|---|---|
| permlink | steemitboard-notify-frostfractal-20170727t132223000z |
| category | science |
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Hey! I'd like to nominate your post for the OCD project but you don't have any sources for your info or your pictures. Would be great if you could add those!
| author | suesa |
|---|---|
| permlink | re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170726t163706227z |
| category | science |
| json_metadata | {"tags":["science"],"app":"steemit/0.1"} |
| created | 2017-07-26 16:37:12 |
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Added the references and sources to the post!
| author | frostfractal |
|---|---|
| permlink | re-suesa-re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170727t025320032z |
| category | science |
| json_metadata | {"tags":["science"],"app":"steemit/0.1"} |
| created | 2017-07-27 02:53:21 |
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Great! Now all you need to do is answer to the comment I wrote where I ask you if you're alright with being nominated. Standard procedure :)
| author | suesa |
|---|---|
| permlink | re-frostfractal-re-suesa-re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170727t201225981z |
| category | science |
| json_metadata | {"tags":["science"],"app":"steemit/0.1"} |
| created | 2017-07-27 20:12:27 |
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| root_title | "Bacteria? Viruses? But what is a Prion?" |
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This gem of a post was discovered by the OCD Team! Reply to this comment if you accept, and are willing to let us promote your gem of a post! If you accept this, you'll be nominated and the members of the OCD team will vote on whether we'll feature your post in our next compilation post. You can follow @ocd – learn more about the project and see other Gems! We strive for transparency. --- I'm mostly curating in #science and am always glad to see quality posts like yours peeking out between the garbage and plagiarism!
| author | suesa |
|---|---|
| permlink | re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170727t040747184z |
| category | science |
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Sure! No problem
| author | frostfractal |
|---|---|
| permlink | re-suesa-re-frostfractal-bacteria-viruses-but-what-is-a-prion-20170728t015817360z |
| category | science |
| json_metadata | {"tags":["science"],"app":"steemit/0.1"} |
| created | 2017-07-28 01:58:18 |
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|---|---|---|---|---|---|
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hiveblocks