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the claim

Adrenaline is stored in vesicles within adrenal cells and released on signal rather than synthesized on demand.

the verdict
INSUFFICIENT LEANING
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Adrenaline is stored in vesicles within adrenal cells and released on signal rather than synthesized on demand?

Unclear. Several sources describe adrenal chromaffin cells storing catecholamines (including epinephrine) in secretory granules/vesicles that are released by exocytosis on stimulation, but none explicitly contrasts this with synthesis on demand, so the claim is only partially covered.

Verdict: PARTIAL LEAN · 5 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 5
Adrenaline: insights into its metabolic roles in hypoglycaemia and diabetes -
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Adrenaline: insights into its metabolic roles in hypoglycaemia and diabetes - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1111/bph.13458

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More for · 4
Adrenal medulla: chromaffin cells as paraneurons.
1977
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Kobayashi, S. (1977). Adrenal medulla: chromaffin cells as paraneurons.. doi.org. https://doi.org/10.1679/aohc1950.40.supplement_61

2 recorded entries grouped as this source

Additional records of the same source are shown below. They are not counted as additional sources.

副腎髄質: パラニューロンとしてのクロム親和細胞
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副腎髄質: パラニューロンとしてのクロム親和細胞. (n.d.). cir.nii.ac.jp. https://doi.org/10.1679/aohc1950.40.supplement_61

Liquid-liquid phase separation within dense-core vesicles in sympathetic adrenal chromaffin cells
2023
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Zhang, Q., Lin, Z., & Zhou, Z. (2023). Liquid-liquid phase separation within dense-core vesicles in sympathetic adrenal chromaffin cells. doi.org. https://doi.org/10.1101/2023.11.28.568971

Chromaffin Versus Platelet Granules: What We Have Learned From Chromaffin Cells for Human Studies.
2026
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R, B. (2026). Chromaffin Versus Platelet Granules: What We Have Learned From Chromaffin Cells for Human Studies.. doi.org. https://doi.org/10.1111/jnc.70433

Profiling Endogenous Opioid Peptide Release from Adrenal Chromaffin Cells
2026
Get citation
Jenna, B., Leslie, S., & Dylan, D. J. (2026). Profiling Endogenous Opioid Peptide Release from Adrenal Chromaffin Cells. zenodo.org. https://doi.org/10.5281/zenodo.19373133

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