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Tamponom protiv HIV-a

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Post by Guest Mon 18 Aug - 13:37

Naletjela sam na zanimljiv članak maloprije na Dagens Nyheter portalu pa sam malo kopala i našla nešto informativniji i na engleskom jeziku napisan članak, objavljen na stranici Medical News Today. Naime, radi se o novom mogućem načinu zaštite od zaraze virusom HIV-a.

http://www.medicalnewstoday.com/articles/280442.php


Isječak iz članka:

How were the dissolvable fibers created?


In a 2012 study published in PLOS One, the researchers first discovered that fibers created by electrospinning - a process that uses an electrical charge to pull tiny fibers from liquid - could be dissolved to release drugs.


In this latest study, recently published in the journal Antimicrobial Agents and Chemotherapy, the team finds that these fibers can hold concentrations of anti-HIV drugs 10 times higher than that of microbicides.


To create the fibers, the researchers dissolved a polymer - a large molecule - and combined it with a drug currently used to treat symptoms of HIV, called maraviroc. This created a substance syrupy in texture.


This substance was then electrically charged with a high-voltage generator before being passed through a syringe. The researchers explain that the electrical charge on the surface of the substance makes it form a long string from the syringe. This string then spins and accumulates on an electrically grounded surface.


Because maraviroc and other anti-HIV drugs are slow to absorb in the body, the researchers wanted to develop a method that speeds up the process, while still delivering high concentrations.


They explain that electrically spun fibers have large surface areas. Because of this, the researchers were able to develop sample fibers where almost 30% of their total mass was made up of the drug. By comparison, the researchers say that only around 3% of microbicides' mass consists of drugs.


The researchers then modified the ingredients in the fibers, allowing them to dissolve the drug in around 6 minutes, regardless of the drug concentration.

Fibers could be incorporated with tampon applicator or vaginal ring


The researchers believe these fibers hold promise for faster HIV protection in women. They say they could be placed into a cardboard tampon applicator for easy insertion into the vagina, or even made into the shape of a vaginal ring just like those used for contraception.


"We think the fiber platform technology has the capability of being developed into multifunctional medical fabrics that address, simultaneously, challenges related to biological efficacy and user preferences," says Woodrow.


The team explains that when the fibers combine with moisture, they quickly hydrate and dissolve to create a gel. During sex, the gel would spread around the vagina, deliver the anti-HIV drug and protect against HIV.


They note that the fibers can hold an array of anti-HIV drugs, and studies are currently underway to test their capabilities. Furthermore, the team are looking to create user-guided prototypes of the fibers and test their safety and effectiveness in animal models.
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Post by Guest Sun 24 Aug - 16:09

Ajd sad lijepo sazmi na hrv. :D
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Post by Guest Sun 24 Aug - 19:48

U najkraćim crtama  :^0 lijek koji bi sprečavao zarazu HIV-om bi se nalazio u tamponu s raspadajućim vlaknima koja se nakon umetanja rastope i otpuštaju djelujuću supstancu.   :D
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Post by Trinity Sun 24 Aug - 21:46

A za muške? scratch
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Post by Guest Sun 24 Aug - 22:24

Imaju i oni gdje stavit tampon!

Sorry morala sam!!!  :h5
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Post by Trinity Sun 24 Aug - 22:30

:^0 nije mi palo na pamet... geek
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Post by Guest Sun 24 Aug - 22:52

Moje su misli uvijek razvratne..... :D
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Post by Guest Sun 24 Aug - 23:00

:^0  :^0
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Post by Guest Sat 4 Apr - 3:17

a zasto bi ste se seksale sa Hivonjom???Bolje sa zdravim.. :clown
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Post by drop_dead_gorgeous Mon 14 Sep - 20:33

Ovo nisam znala . 
 Ali sad znam kako pomaknuti razinu uzbuđenja , barem dok čekam nalaz , pozitivan stav,nemoj biti minus.
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Post by Guest Mon 14 Sep - 20:38

Vidi ove zagy :D
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Post by Guest Mon 14 Sep - 20:40

Kae? :D
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Post by Guest Mon 14 Sep - 22:19

A niš :)
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Post by veber Tue 15 Sep - 12:05

Zagy wrote:Imaju i oni gdje stavit tampon!

Sorry morala sam!!!  :h5
recimo u nos.
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Post by Guest Tue 15 Sep - 13:34

Naravno...;)
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Post by drop_dead_gorgeous Tue 15 Sep - 19:58

Kupila sam anti -hiv tampone .Sad moram naći u registru pozitivnih potencijalnog .
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