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Is this the cure for Alzheimer’s?

We’re about to find out if an experimental surgery can treat Alzheimer’s disease.

The videos are astonishing. In one scene, a senior Chinese woman appears lost in the wilderness of dementia, unable to answer basic questions; in the next, she seems to be lucidly chatting and shucking beans for dinner. By all appearances, years of cognitive decline had been rapidly reversed after the patient underwent an experimental new surgery.

The only problem is: No one is sure if it’s real.

It’s difficult to take any video at face value in the age of AI, and this experimental procedure happened in China, a country with a recent history of controversial science touting extraordinary but questionable claims. In the past few years, researchers there have published several papers reporting promising results from a procedure that purports to attack Alzheimer’s disease in a peculiar way: by connecting vessels from the lymph nodes in the neck to nearby veins in an attempt to drain the brain of harmful waste. But these have been small studies that did not include a control group. The doctor who first pioneered the surgery there has reportedly been placed under arrest, and the Chinese government has sought to stop most physicians from performing any more of these operations.

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Is that because it’s a scam? Or because it’s dangerous? Or could it be because there have not yet been proper randomized trials, tested against a placebo, to assess the procedure’s safety and efficacy? There are new studies being planned in China to more rigorously evaluate the surgery.

But scientists elsewhere in the world have a lot of questions. And now, a small group of researchers in the US and Europe are endeavoring to find the answers. Within the next few years, we should know whether this surgery really could be the miracle that the viral videos make it appear to be — or another much-hyped treatment that ultimately fizzles out.

Dr. Adnan Siddiqui, a neurosurgeon at the University at Buffalo who is leading an initial US-based study of this procedure, previously helped develop a new treatment for severe stroke patients. This gave doctors a valuable new technique for treating patients during an emergency, and he told me he saw it rapidly change the standard of care around the world. In an interview, he cautioned that a lot more work needs to be done to assess this proposed new Alzheimer’s treatment — but at the same time, he’s optimistic.

“The whole world’s paradigm changed in literally a blink of an eye. It can happen. And I’m hoping this might be that second home run,” he said. In “2027, we’ll start getting clear signals in one........

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