Exhaled nitric oxide is associated with cyclic changes in sexual hormones.
Pulm Pharmacol Ther
; 26(6): 644-8, 2013 Dec.
Article
en En
| MEDLINE
| ID: mdl-23665049
ABSTRACT
BACKGROUND:
We hypothesized that changes in the levels of sexual hormones during the menstrual cycle influence the concentration of nitric oxide in the exhaled air (FeNO) and alveolar exhaled nitric oxide (CANO).METHODS:
Twelve healthy, non allergic women in their reproductive age (age range 25-37 years) were recruited. Subjects were studied, on alternate days, over the course of their menstrual cycle. At each visit, measurements of FeNO and CANO were performed. Progesterone and 17-ß-estradiol concentrations were measured in salivary samples.RESULTS:
Eight subjects completed the study. The levels of FeNO and CANO were 13 ± 4.7 pbb and 3.5 ± 1.9 pbb, respectively (mean ± SD). The mean salivary concentration of progesterone was 65.1 ± 16.2 pg/ml (mean ± SD), with a range of 32.4-107.7 pg/ml, and the concentration of 17 ß-estradiol was 6.0 ± 1.6 pg/ml, with a range of 3.1-12.9 pg/ml. The Generalized Estimating Equations procedure demonstrated that levels of progesterone influenced both FeNO and CANO (Wald χ2 = 11.60, p = 0.001; and Wald χ2 = 87.55, p = 0.001, respectively). On the contrary, the salivary levels of 17 ß-estradiol were not significantly associated with FeNO (Wald χ2 = 0.087, p = 0.768) or CANO (Wald χ2 = 0.58, p = 0.448).CONCLUSION:
In healthy women, the menstrual cycle-associated hormonal fluctuations selectively influence the levels of bronchial and alveolar NO. The current findings may have important clinical implications for the interpretation of eNO levels, by identifying a patient-related factor that influences the eNO measurements.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Progesterona
/
Estradiol
/
Ciclo Menstrual
/
Óxido Nítrico
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Female
/
Humans
Idioma:
En
Revista:
Pulm Pharmacol Ther
Asunto de la revista:
FARMACOLOGIA
Año:
2013
Tipo del documento:
Article