The neurotrophins nerve growth factor, brain-derived neurotrophic factor, neurotrophin-3, and neurotrophin-4 are survival and activation factors for eosinophils in patients with allergic bronchial asthma.

J Exp Med · 2003 · PMC2194097 · PMID 12900521

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did not reach statistical significanceno p-value reported

There was a slight increase 18 h after allergen challenge (0.3 ± 0.1 rSMF) but this difference did not reach statistical significance.

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