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ARE VACCINES THE ANSWER
PROLONGING THE Study suggests painkillers may be having the opposite effect in the long run PAIN
Booming Problem Elderly Subtance Abuse issues expected to grow as baby boomers age
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HAS BEEN SHOWN TO PREVENT OVERDOSES AND STOP OPIOID “DESIGNER DRUGS” FROM AFFECTING THE BRAIN vaccine ? ARE A new
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Treating addiction with vaccines is a relatively new idea with many unanswered questions
that arise out of a lack of research. But a new study suggests vaccinating against illicit drugs is not only possible, it could be extremely effective. At the Scripps Research Institute in California, researchers were looking for a way to guard against the lethal and addictive effects of synthetic opioid “designer drugs.” A potentially deadly opioid, fentanyl, is often used as a heroin substitute or mix-in by drug dealers, so researchers developed a vaccine to try to mitigate its effects. Researchers injected mice with three rounds of the vaccine and then exposed them to doses of fentanyl. They found the vaccinated mice did not display any “high” behaviors even months after the last series of vaccine injections. Researchers say the immune systems of the mice developed antibodies that successfully blocked the drug from reaching the brain. “The results were the best we’ve ever seen for any drug vaccine,” says Paul Bremer, a graduate student at Scripps Research Institute who worked on the study.
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VACCINES THE ANSWER
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The results were the best we’ve ever seen for any drug vaccine. - Paul Bremer, Scripps Research Institute
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“ WE WERE ABLE TO BLOCK EXTREMELY LARGE - Paul Bremer DOSES OF FENTANYL TO PROTECT AGAINST OVERDOSES
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SAFE AND POWERFUL Not only was the vaccine able to stop intoxication (something researchers suggest could aid in opioid addiction treatment), the vaccine also proved extremely effective in blocking the potentially lethal effects of fentanyl as well. While the chemical is not necessarily toxic in itself, it does produce psychoactive effects that can shut down breathing and stop a person’s heart. Researchers say mice injected with the vaccine could withstand doses of fentanyl up to 30 times the normal rate. “It was just a rst generation vaccine, but it did prove to be very potent,” Bremer says. “We were able to block extremely large doses of fentanyl to protect against overdoses.” A SINGLE PURPOSE Researchers say the vaccine would not protect against heroin or oxycodone, and a mixture of vaccines would be needed to protect against all opioids. But that was somewhat by design. To make sure the vaccine would not interfere with any medications a person may take responsibly later in life, researchers targeted speci c molecules so the vaccine would only block fentanyl and its derivatives.
“For unrelated drugs that you would be taking, there would be no effect from the vaccine,” Bremer says. LOOKING TOWARD THE FUTURE Although still in the early stages of development, researchers say the vaccine represents an exciting step forward in drug vaccine research. The lab is beginning more advanced trials on a similar heroin vaccine which should give them a better idea of how successful the fentanyl vaccine could become. But until more testing can be completed, researchers say they were pleased with the progress and excited for the future of vaccines in the treatment of addiction. “This concept of using a vaccine for addiction isn’t just an academic pursuit, it could really be used in practice,” Bremer says. “I think it’s really promising.”
safe and powerful
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STUDY METHODOLOGY Studying mice genetically modified to be without the Nav1.7 channel, Wood found that such mice had bodies that dis- played a large increase in certain genes responsible for creating opioid peptides. Opioid peptides occur naturally in the body as the body’s painkiller and have a similar effect as opioids. In making more of the opioid pep- tides, the mice were blocking any feelings of pain, which might be the reason people suffering from CIP also don't feel pain. Wood thought that if he gave mice a medicine that reversed the effect of the opioid peptides, it may reverse the disorder. He gave the mice naloxone—a medication used to reverse opioid overdoses—and it worked. Wood figured the same could be done for humans. “After a decade of rather disap- pointing drug trials, we now have confirmation that Nav1.7 is a key element in human pain,” Woods says. “The secret ingredient turned out to be good old-fashioned opioid peptides, and we have now filed a patent for combining low dose opioids with Nav1.7 blockers. This should replicate the pain- lessness experienced by people with rare mutations, and we have already successfully tested this approach in unmodified mice.” CONGENITAL INSEN- SITIVITY TO PAIN (CIP) is a very rare genetic mu- tation that prevents mes- sages of physical pain from reaching the brain.
Research researcher and his team of researchers studied a 39-year-old woman with CIP. Using a laser beam and a dose of naloxone, Wood helped the woman, who elected to partici- pate anonymously, feel pain for the first time in her life. “Used in combination with Nav1.7 blockers, the dose of opioid needed to prevent pain is very low,” says Wood in an UCL release. “People
Using a test subject with a ge- netic mutation that prevents her from feeling pain, scientists have conducted research that shows promise in creating more effec- tive painkillers—and potentially decreasing the need for addictive opioids. Congenital insensitivity to pain (CIP) is a very rare genetic muta- tion that prevents messages of physical pain from reaching the brain. Sufferers of the disorder, as babies, will chew their lips until they bleed. Toddlers have to deal with more potential for falls, bumps and being hurt by hot or sharp things. Adults are at a high- er risk of dying prematurely. The disorder leaves those afflict- ed without channels known as Nav1.7, which carry sodium to sensory nerves. Understanding this disorder and channels of pain reception and delivery has led re- searchers to study the disorder for ways to block pain in those who don't have the disorder. Research- ers thought they could block pain transporting channels in people without CIP so they can help those with chronic and painful ailments like arthritis. HELPING A WOMAN CRY In a study published by the journal Nature, John Wood, a University College London (UCL) Wolfson Institute for Biomedical
with nonfunctioning Nav1.7 produce low levels of opioids throughout their lives without de- veloping tolerance or experiencing unpleasant side effects.”
As for this work leading to com- plete cessation of pain, Wood tells the New Scientist that some research has found success, but nothing has led to the complete pain loss found in those that are naturally without Nav1.7 channels.
who doesn’t feel the Woman WHAT THE FUTURE HOLDS.... As for people with CIP, Woods says he doesn't know if treatment using nalox- one is an option. Long-term use of naloxone could have side effects. What Woods can say, definitively, is that the mice in the experiment felt as little pain as mice who did not have the Nav1.7 channel naturally. Woods, his team, and the rest of the field are working to fill in the re- search gaps to start answering these questions for humans. “We hope to see our approach tested in human trials by 2017 and
Could help in making better painkillers.
we can then start looking into drug combinations to help the millions of chronic pain patients around the world,” Woods says. Imperial College London professor Kenji Okuse reacted to Wood’s findings to the New Scientist, saying that the research will provide more information to doc- tors about pain.
We hope to see our
“Opioids and Nav1.7 blockers could provide much stronger analgesics, but they will not necessarily be better for patients,” Okuse says. “If we take the combination therapy route, people would have to take opioids throughout the lifetime, which is not a welcome thing.”
approach tested in human trials by 2017 and we can then start looking
into drug combinations to help the millions of chronic pain patients around the world. — John Wood, University College London Wolfson Institute for Biomedical Research researcher
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ain relievers are supposed to relieve pain. It sounds simple enough, but new research suggests a common pain medication may actually be prolonging chronic pain. P Prolonging the Study suggests painkillers may be having the opposite effect in the long run Pain
“We were surprised that morphine was able to induce these really long-lasting changes,” says Dr. Peter Grace, the study’s lead author. Dr. Grace says the cause of the chronic pain in- crease has to do with cells that form part of the immune system. He says if those areas could be isolated or their effects reduced, the resulting pain may not be as great. “If it does turn out to be a relevant issue to patients, then what our study suggests is that targeting the immune system may be the key to avoiding these kinds of effects,” Dr. Grace says. “Opioids could essentially work better if we could shut down the immune system in the spinal cord.” The team’s research only looked at spinal cord injuries and morphine, and did not study other opioids that are commonly prescribed to pa- tients experiencing pain. But he said it’s likely drugs like Vicodin or OxyContin could affect other parts of the body in a similar way. “While we haven't actually tested other opioids in this particular paradigm, we predict that we would see similar effects,” Dr. Grace says.
Morphine is an opioid painkiller commonly prescribed in hospitals and clinics, and while it is effective in the short term, doctors don’t always consider the potential consequences for pain down the road. That’s why a team of researchers based out of the University of Col- orado - Boulder set out to study how morphine treatment affects chronic pain, and found some troubling results. The team, which used mice with spinal cord injuries, found that in mice not given morphine, their pain thresholds went back to normal about four to five weeks after the injury. But mice who were given morphine didn’t see their pain levels return to normal until around 10 to 11 weeks, meaning the use of morphine effectively dou- bled the length of their chronic pain.
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Chronic problem Chronic pain can be debilitating for many people facing serious health problems, and it can also be a key factor in substance abuse. Many people report developing a dependence on opioids after having them prescribed for an injury. But new research suggests the number of people who develop dependency issues because of chronic pain may be far higher than people realize. A study from researchers at Boston Univer- sity looked at a group of nearly 600 people who had either used illicit substances or misused prescription drugs.
They found that 87 percent reported suffering from chronic pain, with 50 percent of those people rating their pain as severe. They also found that 51 percent of people who had used illicit drugs like marijuana, cocaine and heroin had done so to treat their pain. While many prevention ef- forts focus on recreational users, the numbers suggest that chronic pain plays just as prominent a role in substance abuse. “Many patients using illicit drugs, misusing prescription drugs and using alcohol reported doing so in order to self-medicate their pain,” the authors of the study wrote. “Pain needs to be addressed when patients are counseled about their substance use.”
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“Everythingwe knowabout older adults and substance abuse probably doesn’t apply to Baby Boomers.” - Dr. Alexis Kuerbis, CUNY - Hunter College
overall numbers present a problem. “We’re grossly understaffed in being able to handle these problems,” says Dr. Dan Blazer, a psychiatrist at Duke University who has studied the issue extensive ly. “It’s a problem. I think it’s a problem that’s going to get larger as time goes on and we’re probably already seeing evidence of that.” But there’s also an issue of attitude. Baby Boomers, in general, have a more relaxed view of substance use, and experts fear they may carry those behaviors later into life. “There’s no evidence that they’re going to automati cally stop when they hit 65 years old,” Dr. Blazer says. “They’ve used them all their life, they say, ‘Why shouldn’t I use them now?’”
Even though elderly people show substance abuse issues in a much lower percentage than other age groups, the problem is more prevalent than many realize. And it appears it’s only going to get worse. Studies vary, but generally show between 2.2 and 9 percent of older adults have an alcohol use disor der, and experts say they’re already seeing a rise in marijuana and opioid abuse issues. With the large population of Baby Boomers aging, substance abuse numbers in the elderly population are expected to continue to rise, presenting serious problems for treat ment providers and family members. Researchers say the problem is twofold: part is sheer numbers, the other is attitude. With the number of older adults in the U.S. expected to increase from 40.3 million to 72.1 million between 2010 and 2030,
HIDDEN DANGERS
Experts say the lifestyle of elderly people presents a unique challenge for physicians and treatment providers. For example, because retired people don’t work, substance use doesn’t present a problem at their jobs, a typical red flag for younger people. Experts also say too often doctors fall victim to their own prejudices and don’t ask the right questions that could lead to a diagnosis.
Although success rates in treat ment can be better for older adults, the way they’re treated isn’t necessarily the same. Dr. Sacco says older adults respond better to more collaborative treat ment programs that give them options. “For so long it was trying to fit older adults into these programs, but now it might be chang ing these programs to fit older adults,” Dr. Sacco says.
“People think this person doesn’t look like a substance user,” says Dr. Paul Sacco, an expert on substance abuse in older adults. “Sometimes physical problems associated with alcohol abuse are assumed to have a different cause in older adults.” Substance abuse can be even risk ier for older adults as their bodies become less resistant to the stress es brought on by substance use.
PLANNING AHEAD
To mitigate the expected problems as much as possi ble, experts say we need to train more counselors and physicians on how to best treat older adults, and how to spot potential problems in the first place. “With just a little bit of education about older adults, I think you could make a very big impact,” says Dr. Alexis Kuerbis, a researcher who also works with older adults. “The first step is awareness on what might be
different for an older adult.” But because Baby Boomers use substances more than previous senior groups have, experts say treatment providers may have to find new ways to treat an old problem. “Everything we know about older adults and substance abuse probably doesn’t apply to Baby Boomers,” Dr. Kuerbis says. “All bets are off.”
“We’re grossly understaffed in being able to handle these problems.” - Dr. Dan Blazer, Duke University
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Integrated treatment works best for victims of sexual abuse who are also addicts. Researchers have found a dramatic link between the
“ 1 out of every
INSERT 4 occurrence of sexual abuse and substance abuse. According to alcoholrehab.com, “sexual abuse victims are three times more likely to suffer depression, six times more likely to suffer PTSD, 13 times more likely to abuse alcohol and 26 times more likely to abuse drugs than those who have not been sexually abused.” They go on to say that one out of every six women and one in 33 men in America have been the victim of sexual assault or rape in their lifetime.
6 women and one in 33 men in America have been the victim of sexual assault or rape in their lifetime. ” -alcoholrehab.com
Integrated treatment
Treatment centers are beginning to recognize the need for integrated treatment techniques for victims undergoing substance abuse recovery. Since there’s such a high prevalence of sexual abuse among addicts, integrated treatment offers a fuller recovery for sexual abuse victims. Trauma-focused Cognitive Behavior Therapy (CBT) is one common form of treatment. In CBT, individuals are offered psychoeducation, therapy instructing and empowering them to deal with their condition in an optimal way. Stress management tools are also helpful. Individuals can be taught to change their situations or their reactions and how to maintain appropriate personal boundaries. The regulation of emotions can be a challenge for a person who has been sexually abused. In CBT, clients learn what emotions are socially tolerable and they learn how to be flexible enough to permit some spontaneity. Survivors are also taught how to delay emotional reactions as necessary. 30
Individuals can be taught to change their situations or their reactions, and how to take good care of themselves.
Integrated treatment for those suffering from substance abuse addiction and sexual abuse greatly increases the chance that this person will remain sober for the long haul.They can also experience greater joy and healing than if they were treated for substance abuse alone. Telling their story One effective aspect of CBT is for the person to do a “trauma narrative.” In addition to telling their story by the spoken word or writing it down, they can also use drawing, painting or other art forms to communicate the trauma.The narrative can then be shared with a safe person, like a trained therapist or substance abuse counselor.The hope is that the survivor will be able to let go of some of the trauma. Healing can then take place. Another facet of CBT is behavior management training. Clients are encouraged to stay calm in an emotionally charged situation, manage their own responses, learn what limits are appropriate, handle challenging questions and learn how to prevent physical confrontations with others. According to the Rape, Abuse and Incest National Network (RAINN), survivors are also encouraged to do what they can to heal themselves. Good sleep and nutrition, exercise, and regular routines like starting and ending the day in a peaceful way are a good place to start for people from this background. Those in recovery are also urged to write down leisure activities they find enjoyable and engage in those activities regularly. Clients are also encouraged to use journaling and inspirational reading to further grow in their recovery. Finally, having a supportive group of friends and family will help an individual recover emotionally from this kind of trauma.
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Through self-discovery, one will gain the power to Rebuild the Physical, Reconstruct the Mental, and Reconnect the Spiritual.
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