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medicine<br />

By Ilana Teitelbaum<br />

16<br />

The war on drugs makes headlines,<br />

but it’s the victims of addiction who are<br />

caught in the crossfire, facing a grueling<br />

road to recovery for which there are few<br />

effective treatments. And in cases of<br />

prescription drugs such as Oxycodone<br />

or Ritalin, even patients in a clinical<br />

setting can fall prey to addiction.<br />

At TAU’s Dr. Miriam and Sheldon<br />

G. Adelson Center for the Biology of<br />

Addictive Diseases, scientists are analyzing<br />

– practically molecule by molecule<br />

– the biological processes of addiction.<br />

They are advancing new and unexpected<br />

solutions and finding hidden properties<br />

to addictive drugs that may offer treatments<br />

for various degenerative diseases.<br />

Comprising researchers from a variety<br />

of disciplines, including neurobiology<br />

and psychology, the center is part of<br />

the Sackler Faculty of <strong>Medicine</strong> and is<br />

the first of its kind in Israel.<br />

Taking the pain out of morphine<br />

withdrawal<br />

The capacity of morphine to treat<br />

debilitating pain comes with a serious<br />

downside: it is a highly addictive drug.<br />

Withdrawal produces intense pain, diarrhea<br />

and other symptoms, all of which<br />

make recovery from addiction extremely<br />

traumatic for patients.<br />

Until now there has been no treatment<br />

that could completely and permanently<br />

alleviate the withdrawal<br />

symptoms from morphine addiction.<br />

Thinking<br />

Outside the Box<br />

about Addiction<br />

TAU scientists are researching new<br />

medications and therapies for the<br />

treatment of addictive drugs<br />

Prof. Yosef Sarne, a researcher at the<br />

Adelson Center who is investigating<br />

the properties of morphine, discovered<br />

that a miniscule dose of morphine – less<br />

<strong>than</strong> one thousandth of a normal dose<br />

– causes the same severe pain and diarrhea<br />

that occur during withdrawal from<br />

morphine. Prof. Sarne determined that<br />

the blood of patients undergoing withdrawal<br />

contains these same miniscule<br />

doses of morphine. Because the drug<br />

takes time to leave the body entirely, it<br />

may be these tiny quantities of the drug<br />

Prof. Zvi<br />

Vogel,<br />

Director of<br />

the Adelson<br />

Center<br />

that cause the debilitating withdrawal<br />

symptoms.<br />

Armed with <strong>this</strong> knowledge, Prof.<br />

Sarne is now exploring the possibility<br />

of treating morphine withdrawal<br />

by using naloxone, which prevents the<br />

binding of morphine to opiate receptors<br />

in the brain and thereby neutralizes<br />

the effects of the drug. In patients<br />

undergoing withdrawal, high doses of<br />

naloxone may prevent the painful side<br />

effects caused by small quantities of<br />

residual morphine in the bloodstream,<br />

and ease the road from withdrawal to<br />

recovery.<br />

Developing a non-addictive pain<br />

killer<br />

Researchers around the world are<br />

constantly in search of analgesic drugs<br />

that will treat pain as effectively as<br />

morphine, but without the addiction<br />

and side effects that make morphine<br />

so problematic.<br />

Currently it is known that a small<br />

dose of morphine combined with antidepressant<br />

drugs can amplify the efficacy<br />

of the morphine. Based on <strong>this</strong> principle,

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