Relationship of plasma epinephrine and circulating eosinophils to nocturnal asthma

Mary Ellen Bates, Murray Clayton, William Calhoun, Nizar Jarjour, Lara Schrader, Kristine Geiger, Tara Schultz, Julie Sedgwick, Cheri Swenson, William Busse

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The mechanisms of nighttime airway obstruction are not fully established, but include circadian fluctuations in epinephrine and cortisol. To evaluate the relationship of circadian patterns in epinephrine and cortisol to nighttime airflow obstruction, 10 young adult asthma patients (ages 19 to 25 yr) were admitted to a hospital clinical research unit for a 3-day study during which plasma concentrations of epinephrine, cortisol, and histamine were determined along with white blood cell and eosinophil counts every 6 h (1600, 2200, 0400, and 1000 h). Six of the 10 patients experienced at least one episode of nocturnal asthma (defined by more than a 15% decrease in antemeridian (A.M.) to postmeridian (P.M.) FEV1 values). Plasma epinephrine levels (pg/ml) showed a circadian pattern, and the concentration at 2200 h was significantly (p = 0.039) different for the nocturnal and non-nocturnal asthma groups. Circulating eosinophil numbers were greater in subjects who had more frequent episodes of nocturnal asthma, and correlated with the frequency of nocturnal asthma (r = 0.732, p = 0.02, Spearman rank correlation) and average percent decrease in FEV1 (r = 0.667, p = 0.035). Plasma cortisol concentrations also showed circadian patterns, but no direct association with nocturnal asthma; plasma histamine concentrations showed no circadian patterns and no association with nocturnal asthma. Our findings indicate that changes in plasma epinephrine precede the development of nocturnal airway obstruction and contribute to the likelihood of nighttime airflow obstruction.

Original languageEnglish (US)
Pages (from-to)667-672
Number of pages6
JournalAmerican Journal of Respiratory and Critical Care Medicine
Volume149
Issue number3 I
StatePublished - Mar 1994
Externally publishedYes

Fingerprint

Eosinophils
Epinephrine
Asthma
Hydrocortisone
Airway Obstruction
Histamine
Leukocyte Count
Young Adult
Research

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

Cite this

Bates, M. E., Clayton, M., Calhoun, W., Jarjour, N., Schrader, L., Geiger, K., ... Busse, W. (1994). Relationship of plasma epinephrine and circulating eosinophils to nocturnal asthma. American Journal of Respiratory and Critical Care Medicine, 149(3 I), 667-672.

Relationship of plasma epinephrine and circulating eosinophils to nocturnal asthma. / Bates, Mary Ellen; Clayton, Murray; Calhoun, William; Jarjour, Nizar; Schrader, Lara; Geiger, Kristine; Schultz, Tara; Sedgwick, Julie; Swenson, Cheri; Busse, William.

In: American Journal of Respiratory and Critical Care Medicine, Vol. 149, No. 3 I, 03.1994, p. 667-672.

Research output: Contribution to journalArticle

Bates, ME, Clayton, M, Calhoun, W, Jarjour, N, Schrader, L, Geiger, K, Schultz, T, Sedgwick, J, Swenson, C & Busse, W 1994, 'Relationship of plasma epinephrine and circulating eosinophils to nocturnal asthma', American Journal of Respiratory and Critical Care Medicine, vol. 149, no. 3 I, pp. 667-672.
Bates, Mary Ellen ; Clayton, Murray ; Calhoun, William ; Jarjour, Nizar ; Schrader, Lara ; Geiger, Kristine ; Schultz, Tara ; Sedgwick, Julie ; Swenson, Cheri ; Busse, William. / Relationship of plasma epinephrine and circulating eosinophils to nocturnal asthma. In: American Journal of Respiratory and Critical Care Medicine. 1994 ; Vol. 149, No. 3 I. pp. 667-672.
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