The U.S. Justice Department has officially instructed federal prosecutors around the country to stop going after medical marijuana users who are complying with state laws. A total of 14 states now have some provisions for medical marijuana use.
A memo from Deputy Attorney General David Ogden said it was “unlikely to be an efficient use of limited federal resources” to prosecute “individuals with cancer or other serious illnesses who use marijuana as part of a recommended treatment regimen” [The Wall Street Journal]. The memo emphasized, however, that prosecutors should continue to target drug traffickers and distributors who use state laws as a cover for illegal activity.
Supporters of the policy change say it represents a new emphasis on violent crime and the sale of illicit drugs to children…. But some local police and Republican lawmakers criticized the change, saying it could exacerbate the flow of drug money to Mexican cartels, whose violence has spilled over the Southwestern border [Washington Post].
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Image: flickr / Neeta Lind
For many rape cases, the only leads investigators have to follow are the clues spelled out by a DNA sample. If after years the DNA isn’t matched to a suspect the case goes cold and the victim never has closure. A few years ago, when there was still a statute of limitations for rape in New York City, prosecutors devised a clever way to side-step the ticking clock—they decided to simply indict the DNA profile. Since then, New York City prosecutors have secured 117 indictments of DNA samples in rape cases, linked 18 of those profiles to specific people, and obtained 13 convictions, either through trials or negotiated pleas. Five cases are pending [The New York Times].
Called John Doe DNA indictments, the strategy is also used in a handful of other states to help solve sex crimes, and its success has prompted officials to expand DNA indictments to other types of crimes. In New York, authorities are now collecting more DNA evidence from the scenes of everyday crimes. They hope to use DNA to help solve unsolved crimes from the past that are subject to a statute of limitations, like burglary, robbery or serial car theft [The New York Times]. Opponents of John Doe DNA indictments say the passage of time, along with fading memories and disappearing witnesses, hinders the defendant’s ability to mount a defense, and that old DNA samples are subject to depredation and mishandling. However New York officials counter by saying it’s irresponsible to ignore genetic evidence, especially with modern molecular biology tools.
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Image: flickr / [puamelia]
Forget, for a moment, all those fancy geoengineering schemes that would alter the face of the planet in an attempt to reduce global warming‘s impact. Population scientists argue that a cheaper and simpler strategy is to hand out birth control to those who want it–especially to people in the developing world, where birth rates are booming.
The world’s population is projected to jump to 9 billion by 2050, with more than 90 percent of that growth coming from developing countries…. In countries with access to condoms and other contraceptives, average family sizes tend to fall significantly within a generation. Until recently, many U.S.-funded health programs did not pay for or encourage condom use in poor countries, even to fight diseases such as AIDS [AP].
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“Killing season,” a term used to describe the time when junior doctors take over at hospitals, was thought to be just an unsettling joke. However, British researchers found hospital mortality rates rise by 6 per cent on the first Wednesday in August. Perhaps not coincidentally, that is also the day newly qualified doctors, fresh from medical school, are let loose on the wards of [England's National Health Service] hospitals [Daily Mail]. There could be lots of explanations for the increase, so the authors say their data doesn’t mean people should shy away from hospitals during this week, but they do say the increase is statistically significant. The report was published recently in the journal PLoS ONE.
To arrive at their result, an Imperial College team looked at 300,000 emergency patients admitted to English hospitals between 2000 to 2008. They compared death rates between the first week of August, when new doctors arrive, and the previous week in July [BBC News]. The study’s authors note that past studies looking at mortality rates before and after junior doctors take over did not find any difference. The results could be due to the different types of patients being admitted, but if it turns out to that there is some merit to the “killing season” myth, it could have large implications for how young doctors are turned loose.
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Image: flickr / [lauren nelson]
Another day, another swine flu story: Amidst all the chatter, it can be hard to find the most reliable sources and relevant info. To keep you informed of the latest intelligence, 80beats will round up the news each week.
On Monday, the President’s Council of Advisors on Science and Technology issued an alarming report spelling out a “plausible scenario” for how the swine flu pandemic will play out during the coming flu season. The report estimated that the H1N1 virus could hospitalize 1.8 million Americans, potentially clogging emergency rooms and intensive care wards, and could kill up to 90,000 people in the United States. In a typical year, the seasonal flu virus kills about 35,000 Americans.
But on Tuesday, some public health officials walked back the report’s conclusions. One expert who helped prepare the report said that the numbers were probably on the high side, given that some weeks had passed since the calculations were finished in early August. “As more data has come out of the Southern Hemisphere, where it seems to be fading, it looks as if it’s going to be somewhat milder,” said the expert, Marc Lipsitch…. “If we were betting on the most likely number, I’d say it’s not 90,000 deaths; it’s lower” [The New York Times].
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In an attempt to steer organ donation away from organs purchased on the black market or harvested from executed prisoners, China has announced a system to coordinate voluntary organ donation. The details of the new system are still under development, according to Chinese officials.
Although China is far from the only country facing a shortage of donor organs, the number of people who plan to donate is astoundingly low–since 2003, only 130 people have pledged to give up their organs after they pass away. Chinese officials estimate that 1.5 million Chinese need transplants annually but only 10,000 are performed due to donor shortages [The Wall Street Journal]. Of the transplants performed, officials estimate that at least 65 percent use organs from executed prisoners.
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In an effort to stop the spread of HIV, public health officials are considering initiating a program that would encourage circumcision for all newborn boys in the United States.
Studies have shown that heterosexual adult men reduce their risk of HIV by 50 percent by being circumcised. “We have a significant H.I.V. epidemic in this country, and we really need to look carefully at any potential intervention that could be another tool in the toolbox we use to address the epidemic…. What we’ve heard from our consultants is that there would be a benefit for infants from infant circumcision, and that the benefits outweigh the risks” [The New York Times], says CDC epidemiologist Peter Kilmarx.
On the other hand, circumcision has not been shown to reduce HIV risk among men who have sex with men–the U.S. demographic with the highest risk of contracting the virus. And the American Academy of Pediatrics does not currently endorse routine circumcision, as it doesn’t consider the procedure essential to a baby’s well-being. Finally, nearly four-fifths of American men are circumcised, so it’s not clear whether a policy recommending circumcision would have much impact.
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Image: flickr/ Topdog1
Researchers have found a way to reduce the ill-effects of heroin addiction and to generally keep the addicts out of trouble, but there’s a catch: The solution is to give the addicts injections of a pure form of pharmaceutical heroin twice a day. In a fascinating new study, Canadian researchers found that addicts who received the prescription heroin were more likely to stay in treatment than those given methadone, the commonly prescribed opioid that manages heroin cravings without providing the high. Experts say lengthy treatment is often needed to treat other diseases as well as provide counseling to reverse criminal behavior and otherwise stabilize addicts’ lives and improve the chances that they will stop using heroin [The Wall Street Journal].
The study enrolled 226 heroin addicts who had been using the drug for at least five years, and who had failed to stick with a methadone-treatment program at least once. Half the subjects came to the clinic to receive shots of diacetylmorphine—pure heroin—while the other half received standard methadone treatment. After one year, 88% of those in the diacetylmorphine group were still in treatment, compared with 54% in the methadone group [Los Angeles Times]. The test subjects who received heroin were also more likely to reduce their criminal behavior and their drug use outside the clinic, according to the study published in the New England Journal of Medicine.
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Antiviral treatments such as Tamiflu should not be administered to children under the age of 12 because the risks of the drugs outweigh the possible benefits in lessening symptoms of swine flu, according to a study published in the British Medical Journal.
Although antiviral drugs can shorten the duration of the flu in children by an average of 1.5 days, they fail to fight certain effects of the infection, having little effect on the risk of asthma flare-ups, for instance. In fact, the drugs can bring dangerous side effects like vomiting, which can be dangerous because it puts children at risk of dehydration. In the research review, scientists looked at four trials of 1,766 children treated with antivirals, including 1,243 with confirmed flu, and three trials of 863 who were exposed to flu but didn’t exhibit symptoms and were treated with antivirals preventively. Only one trial looked at children with asthma [CBC]. Overuse of antivirals can also increase the risk of viral strains that become resistant to such treatments.
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An international health agency has officially ruled that tanning beds pose as likely to cause cancer as cigarettes, asbestos, and arsenic. The International Agency for Research on Cancer (IARC) moved ultraviolet-emitting tanning beds from the category of “probably carcinogenic” to definitely “carcinogenic to humans.”
The IARC is an expert committee that makes recommendations to the World Health Organization. It made its decision following a review of research which concluded that the risk of melanoma – the most deadly form of skin cancer – was increased by 75% in people who started using sunbeds regularly before the age of 30. In addition, several studies have linked sunbed use to a raised risk of melanoma of the eye [BBC News]. The study results and the new classification were published in the journal Lancet Oncology, and experts say the findings are likely to prompt calls for stricter regulations of tanning salons.
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Although electronic cigarettes have recently been marketed as a safer alternative to traditional smokes, a new analysis of 19 types of the e-cigarettes revealed that they contain toxic chemicals. The FDA has classified the devices as combination drug/medical devices, prohibiting their import, but hasn’t removed them from American shelves. Opponents of e-cigarettes hope the findings will spur the FDA to take more stringent action against the devices.
The results of the FDA’s new analysis, which were announced yesterday, revealed that although e-cigarettes don’t burn tobacco, the devices contain substances known to be toxic, such as diethylene glycol, a component of antifreeze that proved deadly when it was illegally added to toothpaste. They also contain nitrosamines, known carcinogens found in tobacco smoke. The findings, which were announced on Wednesday, contradict claims by electronic cigarette manufacturers that their products are safe alternatives to tobacco and contain little more than water vapor, nicotine and propylene glycol, which is used to create artificial smoke in theatrical productions. When heated, the liquid produces a vapor that users inhale through the battery-powered device [The New York Times].
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One of Britain’s best-known orchestra conductors and his wife have ended their lives at an assisted suicide facility, reigniting the debate over assisted suicide. Helping someone die is a criminal offense in Britain, so Sir Edward Downes, 85, traveled to a “right-to-die” facility near Zurich with his 74-year-old wife, Joan, who had terminal cancer.
Under Britain’s Assisted Suicide Act, helping someone kill him- or herself can bring a penalty of up to 14 years in prison. In Switzerland, however, assisted suicide is legal; the Downeses were not the first Britons who traveled there to legally commit assisted suicide. Since the Zurich clinic run by [the non-profit group] Dignitas was established in 1998 under Swiss laws that allow clinics to provide lethal drugs, British authorities have effectively turned a blind eye to Britons who go there to die…. None of the family members and friends who have accompanied the 117 people living in Britain who have traveled to the Zurich clinic for help in ending their lives have been charged with an offense [The New York Times]. Experts say it’s unlikely that this will change in the case of the Downses’ children, who potentially assisted in their parents’ suicide by traveling with them to the Zurich facility. Still, the fact remains that the couple’s children could potentially be charged with a crime for their involvement in the suicide.
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To obtain a steady supply of unfertilized human eggs for medical research, New York’s Empire State Stem Cell Board recently authorized paying women to donate their eggs. The decision has set off a new round of discussion about whether paying for eggs is ethical. The board agreed that women can receive up to $10,000 for donating eggs, a painful and sometimes risky process…. Proponents say compensating women for their eggs is necessary for research, and point out that women who give their eggs for fertility purposes are already paid. Others worry that the practice will commodify the human body and lead to the exploitation of women in financial need [The New York Times].
At the annual meeting of the International Society for Stem Cell Research this week, British researcher Alison Murdoch described a less controversial “egg sharing” program that has met with success. Women struggling to conceive can obtain IVF at a discounted rate, in exchange for donating some of their eggs for research…. In 2008, Murdoch’s team had 191 enquiries from interested women and ended up obtaining 199 eggs from 32 couples. “We are getting donors and we are getting eggs,” says Murdoch. The team is using the eggs in experiments into “therapeutic cloning”, which could ultimately produce stem cells matched to individual patients [New Scientist].
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It’s unknown whether the swine flu virus will mutate to a more deadly strain in the coming year, but the federal government is preparing for the worst in case the pandemic continues to spread. At yesterday’s flu summit at the National Institutes of Health, Health and Human Services Secretary Kathleen Sebelius revealed the government’s provisions for a possible swine flu emergency.
The campaign to combat the swine flu is different from the strategy usually employed against the seasonal flu. One reason is that the swine flu appears to be most deadly to children and young adults, while the seasonal flu traditionally is most fatal to the elderly. Therefore, if mass vaccination becomes necessary, school-aged children will be among the first to be immunized; this likely will occur at school, in a manner reminiscent of the 1950s polio vaccination campaign. “We are likely to have a different target population,” Sebelius said. “We will be seeking partnerships with schools potentially and other vaccination sites.” Time will have to be spent writing consent forms so parents are not blindsided when schools ask to vaccinate their children, Sebelius said [Reuters]. States should also prepare a plan for closing schools if needed.
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Few people enjoy being poked and prodded at the doctor’s office, but we usually assume that those unpleasantries are worth detecting a disease or disorder early on. Unfortunately, though, we might never hear about worrisome test results, according to a new study published in the journal Archives of Internal Medicine. Researchers found that about 7 percent of clinically significant test results are never reported to the patient or that the notification of patients is not documented, largely a result of medical information slipping through the cracks.
The researchers examined the records of 5,434 patients between the ages of 50 and 69 at 19 community-based primary care practices and an additional four academic medical care facilities. The patients were old enough to likely be developing conditions that warranted testing (such as for high cholesterol, impaired blood-sugar control, prostate cancer or waning liver function), but not so old as to be ill enough to make certain of these findings relatively unimportant. Patients’ records were reviewed for any of 10 types of blood tests and for three types of screening exams — mammography, Pap smears and occult blood assays of possible colon cancer. During a yearlong period, the participating practices had prescribed several thousand such tests [Science News]. The researchers found that physicians did not inform patients about abnormal test results about one out of 14 times, or around 7 percent of the time.
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