» Articles » PMID: 18456237

Salivary Progesterone and Estriol Among Pregnant Women Treated with 17-alpha-hydroxyprogesterone Caproate or Placebo

Abstract

Objective: The objectives of the study was to determine whether salivary progesterone (P) or estriol (E3) concentration at 16-20 weeks' gestation predicts preterm birth or the response to 17alpha-hydroxyprogesterone caproate (17OHPC) and whether 17OHPC treatment affected the trajectory of salivary P and E3 as pregnancy progressed.

Study Design: This was a secondary analysis of a clinical trial of 17OHPC to prevent preterm birth. Baseline saliva was assayed for P and E3. Weekly salivary samples were obtained from 40 women who received 17OHPC and 40 who received placebo in a multicenter randomized trial of 17OHPC to prevent recurrent preterm delivery.

Results: Both low and high baseline saliva P and E3 were associated with a slightly increased risk of preterm birth. However, 17OHPC prevented preterm birth comparably, regardless of baseline salivary hormone concentrations. 17OHPC did not alter the trajectory of salivary P over pregnancy, but it significantly blunted the rise in salivary E3 as well as the rise in the E3/P ratio.

Conclusion: 17OHPC flattened the trajectory of E3 in the second half of pregnancy, suggesting that the drug influences the fetoplacental unit.

Citing Articles

Preference of saliva over other body fluids as samples for clinical and laboratory investigations among healthcare workers in Ibadan, Nigeria.

Lasisi T, Lawal F Pan Afr Med J. 2020; 34:191.

PMID: 32180865 PMC: 7060920. DOI: 10.11604/pamj.2019.34.191.18738.


Prenatal administration of progestogens for preventing spontaneous preterm birth in women with a multiple pregnancy.

Dodd J, Grivell R, OBrien C, Dowswell T, Deussen A Cochrane Database Syst Rev. 2019; 2019(11).

PMID: 31745984 PMC: 6864412. DOI: 10.1002/14651858.CD012024.pub3.


Progestin therapy to prevent preterm birth: History and effectiveness of current strategies and development of novel approaches.

Mesiano S, Peters G, Amini P, Wilson R, Tochtrop G, van den Akker F Placenta. 2019; 79:46-52.

PMID: 30745115 PMC: 6766339. DOI: 10.1016/j.placenta.2019.01.018.


Prenatal administration of progestogens for preventing spontaneous preterm birth in women with a multiple pregnancy.

Dodd J, Grivell R, OBrien C, Dowswell T, Deussen A Cochrane Database Syst Rev. 2017; 10:CD012024.

PMID: 29086920 PMC: 6485912. DOI: 10.1002/14651858.CD012024.pub2.


Dispatches from the interface of salivary bioscience and neonatal research.

Voegtline K, Granger D Front Endocrinol (Lausanne). 2014; 5:25.

PMID: 24624119 PMC: 3940893. DOI: 10.3389/fendo.2014.00025.


References
1.
Heine R, McGregor J, Goodwin T, Artal R, Hayashi R, Robertson P . Serial salivary estriol to detect an increased risk of preterm birth. Obstet Gynecol. 2000; 96(4):490-7. DOI: 10.1016/s0029-7844(00)01004-8. View

2.
Tulchinsky D, SIMMER H . Sources of plasma 17alpha-hydroxyprogesterone in human pregnancy. J Clin Endocrinol Metab. 1972; 35(6):799-808. DOI: 10.1210/jcem-35-6-799. View

3.
Hobel C . Stress and preterm birth. Clin Obstet Gynecol. 2004; 47(4):856-80. DOI: 10.1097/01.grf.0000142512.38733.8c. View

4.
Darne J, McGarrigle H, Lachelin G . Increased saliva oestriol to progesterone ratio before preterm delivery: a possible predictor for preterm labor?. Br Med J (Clin Res Ed). 1987; 294(6567):270-2. PMC: 1245292. DOI: 10.1136/bmj.294.6567.270. View

5.
Block B, Liggins G, Creasy R . Preterm delivery is not predicted by serial plasma estradiol or progesterone concentration measurements. Am J Obstet Gynecol. 1984; 150(6):716-22. DOI: 10.1016/0002-9378(84)90674-4. View