In rat tissues, certain enzymes probably break down a peptide called exendin-4, and scientists saw that blocking those enzymes slowed the breakdown in lab tests.

8

Pro

0

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 tested the same substances mentioned in the claim and found they slow down the breakdown of exendin-4 in rat tissues, which supports the idea that those enzymes are involved.

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

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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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).

8

0

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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.

8

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71%