The undercover investigation youre about to see today is going to make you really angry, because were exposing the worst kind of scam one that takes advantage of those most vulnerable, stealing not just their money, but their hope, their dignity.

Thats how Dr. Mehmet Oz introduces a series of segments scheduled to run on his daytime television program Tuesday. His quarry: those for-profit clinics offering supposed stem cell treatments for an implausible host of diseases unproven, unlikelyand very expensive cures.

We reported on this noisome corner of medical pseudo-sciencelast year, outlining theabsence of scientific support for their treatmentand their intensive marketing pitches to hopeful patients. We reported that in a survey of stem cell tourism, stem cell scientist Paul Knoepfler of UC Davis and bioethicist Leigh Turner of the University of Minnesotaidentified 570 clinicsaround the U.S. offering stem cell interventions. Scores were concentrated in such hotspots as Beverly Hills, Phoenixand New York. Many were offering unproven therapies featuring the termstem cell as a marketing veneer.

Dr. Ozs investigation of these clinics is a worthy addition to public awareness. Its must-viewing for patients and families desperate enough to contemplate turning to such clinics for succor, and for state and federal regulators and law enforcement agencies that should be riding herd on thembut have almost universally given them a pass. Oz calls on the Food and Drug Administration and other regulators to step in and stop this now, thats how bad its become.

Weve been critical of Dr. Oz in the past for purveying untested medical nostrums, as have many other critics. But his investigation of the stem cell clinics is a model of public service. He musters his entire arsenal of crowd-pleasing techniques his forceful, impassioneddelivery, his cultivated aura of medical authority, and his credibility with his audience to the best purpose.

The investigation is the product of the shows so-calledmedical unit and its chief of staff, Michael Crupain, a medical doctor and public health specialist who was hired from Consumer Reports about a year and a half ago. At one point during his research for the program Crupain dialed in to a webinar in which prospective patients were recruited by a clinic. It was like watching someone sell a time-share, he told me an observation that made it into the show.

The three segments, which take up about half of Tuesdays scheduled program, include undercover visits to clinics in New York by Elizabeth Leamy, a reporter on the program, along with a former patient. At one point we see a clinic employee claim that hestreated 44 patients for multiple sclerosis, and every single patient had vast improvement. The investigators are pitched $15,000 treatments and encouraged to spread it out on their credit cards. (No insurer will cover these untested and unproven therapies.) One promoter seen on tape acknowledges to the undercover team, We dont know the exact mechanism of everything we do, but counselsthem, We just know that it works, we use it. If it works and its safe [and] its reasonable in cost, you know, why not?

Why not, indeed? Because the targets of these pitches are at the end of their rope, vulnerable to scamsters,and often have to make immense sacrifices to pay the fees. Doctors and others can prey on their vulnerability, Oz observes.

Oz displays a list of the conditions the clinics claim to treat joint pain, autism, Parkinsons, Alzheimers, stroke, emphysema, and blindness, among many others. He explains that its impossible for a one-size-fits-all treatment to cure them all: It defies basic medical know-how, which means they are not telling us the truth. He lucidly describes their supposed technique, which involves extracting stem cells from the patients by liposuction, separating the stem cells by centrifuge and treating them with some sort of enzyme, then reinjecting them in the patients body and waiting for the concoction to do its magic.

He offers a withering assessment of doctors who claim to be engaged in clinical trials of stem cell treatments butask you to give money upfront and mortgage your house and borrow fromyour friends credit cards thats not how medicine should be practiced.

Oz is assisted by talk show host and multiple sclerosis patient Montel Williams and Sally Temple, a stem cell scientistwho is president of theInternational Society for Stem Cell Research. Temple explains that real research into stem cell treatments takes years and aims to develop treatments that can receive FDA approval. She quite properly underscoresthe dangerto legitimate research posed by bogus clinics offering medically dubious treatments.

Theyre saying they can cure a whole host of diseases, and we know they cant, she says. We are really concerned that its going to undermine the genuinely good work thats being done.

Crupain considers the stem cell investigation to be Dr. Oz at his best. Hes right.

Keep up to date with Michael Hiltzik. Follow@hiltzikmon Twitter, see hisFacebook page, or emailmichael.hiltzik@latimes.com.

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Dr. Oz takes on those bogus for-profit stem cell clinics--and cuts them to shreds - Los Angeles Times