A chemical called PD 098063 can stop a harmful inflammation signal (TNF) from making a sticky protein (VCAM-1) that attracts immune cells, but it doesn’t mess with the main alarm system (NF-κB) that usually turns on this protein—so it’s blocking the result without turning off the alarm.

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Evidence from Studies

Supporting (1)

4

Community contributions welcome

4

Selective inhibition of tumor necrosis factor-induced vascular cell adhesion molecule-1 gene expression by a novel flavonoid. Lack of effect on transcription factor NF-kappa B.

Cross-Sectional Study

In Vitro

1996 Dec

The study found that PD 098063 stops a specific inflammation signal (VCAM-1) from turning on, but it doesn’t block the main switch (NF-kappa B) that usually controls it — just like turning off a light without flipping the main circuit breaker.

Contradicting (0)

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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

Selective inhibition of tumor necrosis factor-induced vascular cell adhesion molecule-1 gene expression by a novel flavonoid. Lack of effect on transcription factor NF-kappa B.

Score: 4

DOI: 10.1161/01.ATV.16.12.1501

Similar Assertions

A chemical called PD 098063 can turn down a protein (VCAM-1) that helps inflammation, but it doesn’t do this by blocking the usual inflammation switch (NF-kappa B)—it uses a different, unknown path instead.

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