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Diskusija o HIV-u, podrska, iskustva...

Moderatori: IriS, Moderators

#2537812
Naučnici na ivici pronalaska leka protiv HIV Video


M. Milikšić | 28. 04. 2013. - 22:10h | Foto: Ilustracija | Komentara: 13

Danski naučnici veruju da će “u roku od nekoliko meseci” doći do revolucionarnog pomaka u pronalaženju leka za virus HIV, koji uzrokuje sidu, piše “Telegraf”.

Slika

Oni trenutno sprovode kliničke testove da ispitaju novu “strategiju”, tokom koje virus HIV biva odvojen od ljudske DNK i trajno uništen imunim sistemom. Naučnici takođe očekuju da će rezultati pokazati da je lek pogodan za masovnu distribuciju i prilagođen svakom džepu, ukoliko to bude moguće. Naučnici sada sprovode testove nad pacijentima, u nadi da će se nova metoda pokazati efektivnom. Prema laboratorijskim rezultatima, njihova metoda već radi. Nova tehnika uključuje otpuštanje virusa HIV iz “rezervoara” koje on formira u ćelijama DNK, i njegovo izbacivanje na površinu ćelije. Jednom kad izbije na površinu, prirodni imuni sistem tela može da ubije virus uz malu pomoć “vakcine”.


U laboratorijskim ispitivanjima nova tehnika se pokazala toliko uspešnom da je danski Istraživački savet u januaru naučnom timu dodelio 12 miliona danskih kruna (1,6 miliona eura) za dalja istraživanja na ljudima, koja su trenutno u toku.


Štaviše, kako kaže član istraživačkog tima, dr Ole Sogard, prvi rezultati su “obećavajući”.
-Skoro sam u potpunosti siguran da ćemo biti uspešni u otpuštanju rezervoara HIV-a. Izazov je da navedemo pacijentov imuni sistem da prepozna virus i uništi ga. To zavisi od snage i osetljivosti imunog sistema – istakao je on.


U ispitivanjima učestvuje 15 pacijenata, a ako se pokaže da su izlečeni od HIV-a, lek će biti testiran u širem rasponu.


Sogard ističe da lek nije isto što i preventivna vakcinacija i da podizanje svesti o sidi ostaje važan faktor u borbi protiv HIV-a.


Kombinovana tehnika


Naučnici tek treba da sprovedu kliničke testove, u kojima će tragati za kombinovanom tehnikom otpuštanja “rezervoara” HIV-a uz imunoterapiju. Oni se fokusiraju na pacijente koji su nedavno zaraženi, jer smatraju da će lek biti uspešniji.


-Kada izlečimo prvog pacijenta na ovaj način, to će biti spektakularan trenutak – kaže dr Džon Frejter, član tima.


Naučnici u novoj tehnici primenjuju HDAC inhibitor, i to posebno jak “panobinostat”, koji se obično koristi u lečenju raka, kako bi izbacili HIV iz pacijentovog DNK.



Sada, sa modernim lekovima, pacijent može da živi maltene normalno i dočeka starost uz ograničene sporedne efekte. Međutim, ukoliko se prestane s uzimanjem lekova, “rezervoari” HIV-a se aktiviraju i počinju da proizvode više virusa, te simptomi mogu da se ponovo jave u roku od svega dve nedelje.
Otkriće leka oslobodilo bi pacijente od potrebe da stalno uzimaju lekove, a zdravstvene službe uštedile bi milijarde eura.


Nova tehnika istražuje se u Velikoj Britaniji. Univerziteti Oksford, Kembridž, Imperijalni koledž, Univerzitetski koledž i Kraljevski koledž zajedno su oformili istraživačku grupu CHERUB, posvećenu otkrivanju leka za HIV.

http://www.blic.rs/Vesti/Svet/380163/Na ... protiv-HIV" target="_blank
#2537815


Early signs for HIV cure are 'promising' as Danish scientists begin test on humans


Clinical trials are underway in Denmark, where researchers at the Aarhus University Hospital are using a 'novel approach' to fight the HIV virus. The latest testing comes as a U.S. trial first started in 2009 to prevent HIV infection was halted last week.

Slika

By Erik Ortiz / NEW YORK DAILY NEWS
Sunday, April 28, 2013, 11:21 AM

A clinical trial in Denmark to fight HIV is the latest attempt to find an elusive cure for the virus.
Tsipos/Dreamstime

A clinical trial in Denmark to fight HIV is the latest attempt to find an elusive cure for the virus.

Danish scientists claim they’re on the brink of a “promising” breakthrough to cure HIV.

Researchers at the Aarhus University Hospital in Denmark said they're now conducting clinical trials on humans using a “novel strategy” that has worked in lab tests, London’s The Telegraph reported.

The announcement comes just days after the U.S. government said it is halting a large study on creating an AIDS vaccine because experimental shots failed to prevent infection.

The Danish trial uses a treatment that forces the HIV virus from so-called reservoirs it forms in DNA cells, bringing the virus to the surface, according to The Telegraph.

Once the virus is exposed, the body’s natural immune system can destroy it with the help of a vaccine.

While the procedure appeared to work using human cells in a lab, whether it will prove successful in a human body remains to be seen, said Dr. Ole Sogaard, a senior researcher at Aarhus.

“The challenge will be getting the patients’ immune system to recognize the virus and destroy it. This depends on the strength and sensitivity of individual immune systems,” Sogaard told The Telegraph.

RELATED: AIDS VACCINE MOVES ONE STEP CLOSER TO REALIZATION

Fifteen people have been signed up for the trial, which was awarded a new round of funding from the Danish Research Council worth about $2.1 million.

Similar research is being conducted in Britain through a collaboration of five universities focusing on people who only recently were diagnosed with HIV.

Sogaard said that the research in Denmark would be a cure for those already infected, but wouldn’t prevent HIV or AIDS.



Finding a cure — one that is also widely accessible and affordable to the public — took a hit in the United States when experimental shots failed to reduce the amount of the AIDS virus in the blood, the National Institutes of Health said.

Read more: http://www.nydailynews.com/life-style/h ... z2Rr4dtvdv" target="_blank


http://www.nydailynews.com/life-style/h ... -1.1329530" target="_blank
By Sixto
#2537839
Jos da nadju lek protiv hepatitisa C, ima da se pederi fircaju bez gume sve u 16!
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