Melatonin Production Delay in Preterm Infants

Term-Born Infants at 9 and 12 Months of Age: A Randomized Controlled Trial

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00775723

Enrollment

Registered

2008-10-20

Start date

2008-01-31

Completion date

2008-05-31

Last updated

2008-11-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Melatonin Production

Keywords

6sulphatoxymelatonin, preterm infants, melatonin is low in preterm infants at least until the age of 6 months

Brief summary

Objective: Melatonin production is known to be delayed in preterm-born infants up to 6 months of age. This might be related to exposure of preterm infants to continuous lighting in the NICU during a critical period of pineal gland development. The investigators aimed to test the profile of melatonin production in these infants at 9-12 months of age. Methods: Twenty three term-born and 23 preterm-born infants (gestational age: 29-34 weeks) were studied. The investigators tested nocturnal urinary melatonin excretion, within a repeated measures design, both at 9 and 12 months of age. Nocturnal urine was extracted from diapers and urinary melatonin derivate (6-sulphatoxymelatonin) excretion was analyzed by ELISA assay.

Detailed description

Unlike other organs which show catch up in preterm infants after one year of life, the pineal gland shows persistent delay in melatonin production. This field of research has been neglected lately although there are published recommendations for decrease of bright light in NICUs which prevents melatonin development and production, and also recommendations for melatonin treatment in cases respiration recovery in hospitalized preterm infants.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

9 Months to 12 Months

Healthy volunteers

Inclusion criteria

* The investigators included healthy mothers with singleton pregnancies and documented prenatal care who were admitted before term (28-34) weeks gestation to the hospital's delivery room with early uterine contractions and entering stage 1 of an anticipated spontaneous vaginal delivery or term infants born at 38-42 weeks of gestation.

Exclusion criteria

* Mothers who showed signs of fetal distress during labor, or required Cesarean (C)c-section, or had fetuses withand estimated fetal weights \< 10th percentile for gestational age and children diagnosed with * Genetic anomalies, congenital heart malformations, gastrointestinal disturbances and central nervous system dysfunction * Age \< 9 months, Age \> 9 months month at onset of study * Considered medically unstable

Countries

Israel

Outcome results