In lab tests with rat tissues, a substance called exendin-4 breaks down way faster in the kidney than in the liver — just a few minutes in the kidney versus over an hour and a half in the liver.

8

Pro

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Against

Evidence from Studies

Supporting (1)

8

Community contributions welcome

8

In Vitro Metabolic Stability of Exendin-4: Pharmacokinetics and Identification of Cleavage Products

Cross-Sectional Study

Animal

2015

The study measured how fast exendin-4 breaks down in rat kidney and liver tissues and found it breaks down much faster in the kidney, just like the claim says.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

In Vitro Metabolic Stability of Exendin-4: Pharmacokinetics and Identification of Cleavage Products

Score: 8

DOI: 10.1371/journal.pone.0116805

Similar Assertions

In rats, the body breaks down a substance called exendin-4 differently in the kidneys and liver — the kidneys chop it up in several places early on, while the liver makes one main cut first and then trims the ends.

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When scientists studied a lab-made version of a hormone in rat kidney mixtures, they found it breaks apart at two specific spots, creating two smaller pieces as the first step in its breakdown.

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78%

When scientists break down the drug exendin-4 in a lab dish using rat liver bits, it mostly gets chopped at one specific spot, making a smaller piece called exendin-4(12–39).

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77%

Cutting off the end of a hormone called exendin-4 doesn’t make it break down faster in anesthetized pigs, so that part probably doesn’t matter much for how long the hormone lasts in their bodies.

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