Medical Cannabis No Help to Lobsters

By Pat Anson, PNN Editor

Do lobsters feel pain when they’re boiled alive?

Seafood lovers, cooks, academics, animal rights activists and even governments have debated that question for years, with the general consensus being that they do. Lobsters, crabs and other crustaceans will often writhe in pain and try to escape when dropped into a pot of scalding hot water. The practice is considered so cruel that Switzerland and New Zealand made it illegal to boil a live lobster.

Some cooks try to ease the lobsters’ pain by stunning them with a jolt of electricity or putting them on ice to dull their senses before cooking them.  In 2018, a restaurant owner in Maine even blew marijuana smoke on a lobster named Roscoe, who reportedly grew so mellow he never wielded his claws as weapons again while in captivity.

We’ll never know the long-term effect of getting a lobster stoned because Roscoe was returned to the ocean as a thank you for his service. Good for him.

Which brings us to a bizarre study recently completed by scientists at the University of California San Diego and the Scripps Research Institute, who decided to replicate the Roscoe experiment in a lab.

"The 2018 minor media storm about a restaurant owner proposing to expose lobsters to cannabis smoke really was the starting point. There were several testable claims made and I realized we could test those claims. So we did," lead author Michael Taffe, PhD, an adjunct professor at Scripps Research told IFLScience.

Taffe and his colleagues purchased ten Maine lobsters at a local supermarket, fed them a last meal of frozen krill and fish flakes, and placed them in an aerated vapor chamber.

For the next 30 to 60 minutes, the lobsters were exposed to vapor rich in tetrahydrocannabinol (THC), the psychoactive ingredient in cannabis.

Afterwards, some of the lobsters were “rapidly euthanized” with a kitchen shear and dissected, while others were immersed in hot water to see how they’d react.

Detectable levels of THC were found in the muscles and organs of the euthanized lobsters, so from that standpoint the experiment was a success. But the THC apparently had little effect on the remaining live lobsters, who displayed “distinct motor responses” and other signs of pain when put in hot water.   

"The effect of vapor THC on this nociceptive (pain) behavior was very minimal. Statistically supported in one case, but of very small magnitude," said Taffe.

We’ll leave it to readers to decide whether a study like this is humane, worthwhile or even makes sense. But it is worth noting that taxpayers helped pay for it.

The lobster cannabis study was supported by grants from the U.S. Public Health Service. Researchers were careful to note that federal funding was not directly used to purchase the lobsters. That money came from La Jolla Alcohol Research, a private company that is developing vapor inhalation technologies.  According to GovTribe, La Jolla Alcohol Research has received about $3 million in federal funding in recent years, most of it coming from the National Institute on Drug Abuse.

‘Opioid Vaccine’ Could Revolutionize Addiction Treatment

By Pat Anson, Editor

Scientists at The Scripps Research Institute have developed an experimental vaccine that appears to significantly lower the risk of an overdose from prescription opioids and could someday revolutionize opioid addiction treatment. The vaccine also blocks the pain-relieving effects of opioid medication.

“We saw both blunting of the drug’s effects and, remarkably, prevention of drug lethality,” said co-author Kim Janda, PhD, a professor of chemistry at Scripps. “The protection against overdose death was unforeseen but clearly of enormous potential clinical benefit.”

Vaccines typically take advantage of the immune system’s ability to recognize and neutralize foreign invaders such as bacteria.

When injected, the opioid vaccine triggers an immune system response when two widely used painkillers -- hydrocodone and oxycodone -- are detected. Antibodies released by the immune system seek out the opioids and bind to the drugs' molecules, preventing them from reaching the brain.

“The vaccine approach stops the drug before it even gets to the brain,” said study co-author Cody Wenthur, PhD, a research associate at Scripps. “It’s like a preemptive strike.”

In tests on laboratory mice, scientists found that the opioid vaccine blocked the pain relieving effects of oxycodone and hydrocodone, as well as any euphoria. The vaccinated mice also appeared less susceptible to a fatal overdose.

“Our goal was to create a vaccine that mirrored the drug’s natural structure. Clearly this tactic provided a broadly useful opioid deterrent,” said study first author Atsushi Kimishima, a research associate at Scripps.

Currently, opioid addiction treatment relies on other opioids – such as methadone and buprenorphine (Suboxone) – to stifle cravings for opioids. But those drugs can be abused as well.  

Although some of the vaccinated mice succumbed to an opioid overdose, researchers found that that it took much longer for the drug to impart its toxicity. If this effect holds true in humans, the opioid vaccine could extend the window of time for emergency treatment if an overdose occurs.

The next step for researchers is to refine the dose and injection schedule for the opioid vaccine. It may also be possible to make the vaccine more effective. Scripps researchers are already working on vaccines to block the effects of heroin, fentanyl and other synthetic opioids.

The Scripps study has been published in the journal ACS Chemical Biology. The study was supported by the National Institute on Drug Abuse of the National Institutes of Health.

Heroin Vaccine

California-based Opiant Pharmaceuticals is developing a similar vaccine designed to treat heroin addiction. The company recently announced that it has obtained exclusive development and commercialization rights to an experimental heroin vaccine invented by scientists at the Walter Reed Army Institute of Research and the National Institute on Drug Abuse.   

“Aggressively addressing heroin addiction is part of Opiant’s mission,” Roger Crystal, MD, CEO of Opiant said in a news release. “In our view, this vaccine fits our plan to develop innovative treatments for this condition. The vaccine has promising preclinical data.”

Opiant’s first commercial product was Narcan, an emergency nasal spray that rapidly reverses the effects of an opioid overdose.

“Whilst our development of Narcan Nasal Spray to reverse opioid overdose has been a significant effort to address the unfortunate consequences of heroin addiction, we see the vaccine as having potential in addressing the disease itself,” said Crystal.