- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT01439048
Placental and Cord Blood Markers Associated With Premature Birth and Disorders of Premature Birth in Newborn Infants
Study of Environmental Toxicants and Inflammatory Markers in Prematurity and Diseases of Prematurity
Studieoversikt
Status
Forhold
Detaljert beskrivelse
Prematurity, diseases of prematurity and growth-disorders of newborn infants contribute significantly to morbidity and mortality seen in newborn infants [1,2,3]. One out of eight newborn infants in the USA is born premature (gestational age less than 37 completed weeks). In 2004, of the 27,860 infants dying within the first year of life, greater than 16,000 were born premature [2]. Moreover, premature infants who survive the neonatal period are at increased risk of cerebral palsy, developmental delays, growth impairment and long-term respiratory disability [3-5]. Additionally, fetal growth restriction and fetal growth excess results in infants being delivered as small for gestational age infants or large for gestational age infants, respectively. Infants born with such growth-disorders are at increased risk of perinatal morbidity and mortality and as adults are at significant risk of obesity, type II diabetes and heart disease [6,7].
While the etiology of preterm birth and growth-disorders can be ascribed to maternal conditions, chromosomal defects or specific maternal environmental exposures in some newborn infants, for a majority the etiology remains unknown [8,9]. There is increasing evidence pointing to the role of genetic susceptibility factors in the causation of prematurity and growth-disorders of the newborn infant [8, 10-12]. Further, epigenetic changes in growth regulating or inflammatory genes in the placenta can program the fetus for premature birth, growth-disorders and other diseases in the postnatal period.
The overall objective of this application is four-fold.
- To determine whether altered placental or fetal expression of imprinted genes is associated with disorders of growth, prematurity or other postnatal diseases in newborn infants.
- To determine whether altered placental expression of genes that regulate the innate immune response is associated with premature birth or other postnatal diseases in newborn infants.
- To determine whether placental markers of environmental exposure (such as Polycyclic Aromatic Hydrocarbons or PAH) or epigenetic changes in placental inflammatory genes or growth genes are associated with prematurity or postnatal diseases in newborn infants.
- To determine whether cord blood immune responses and markers of immune-cell function are different between preterm and term infants and are associated with postnatal diseases in preterm infants.
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
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Wisconsin
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Wauwatosa, Wisconsin, Forente stater, 53226
- Froedtert Memorial Lutheran Hospital
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
- all infants born alive
Exclusion Criteria:
- infants who are born with no signs of life
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
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Term infants
Infants born at greater than 37 weeks gestation
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Preterm Infants
Infants born at less than 37 weeks gestation
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Comparisons of placental gene expression and cord blood immune markers
Tidsramme: through hospital discharge
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Placental gene expression and cord-blood immune markers/function will be compared between 50 term infants and 150 preterm infants.
Further, among preterm infants it will be determined whether certain patterns of gene expression and immune marker distribution are associated with specific diseases/condition and growth outcomes.
Similarly, epigenetic changes in the immune genes and markers of environmental exposure will be compared between preterm infants and term infants.
Associations between environment exposures and epigenetic changes and diseases of prematurity will also be determined.
|
through hospital discharge
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Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: Venkatesh Sampath, MBBS, Medical College of Wisconsin
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Stoll BJ, Hansen N, Fanaroff AA, Wright LL, Carlo WA, Ehrenkranz RA, Lemons JA, Donovan EF, Stark AR, Tyson JE, Oh W, Bauer CR, Korones SB, Shankaran S, Laptook AR, Stevenson DK, Papile LA, Poole WK. Late-onset sepsis in very low birth weight neonates: the experience of the NICHD Neonatal Research Network. Pediatrics. 2002 Aug;110(2 Pt 1):285-91. doi: 10.1542/peds.110.2.285.
- Stoll BJ, Hansen NI, Adams-Chapman I, Fanaroff AA, Hintz SR, Vohr B, Higgins RD; National Institute of Child Health and Human Development Neonatal Research Network. Neurodevelopmental and growth impairment among extremely low-birth-weight infants with neonatal infection. JAMA. 2004 Nov 17;292(19):2357-65. doi: 10.1001/jama.292.19.2357.
- Guyer B, Martin JA, MacDorman MF, Anderson RN, Strobino DM. Annual summary of vital statistics--1996. Pediatrics. 1997 Dec;100(6):905-18. doi: 10.1542/peds.100.6.905.
- Mathews TJ, MacDorman MF. Infant mortality statistics from the 2003 period linked birth/infant death data set. Natl Vital Stat Rep. 2006 May 3;54(16):1-29.
- Stoll BJ, Hansen N. Infections in VLBW infants: studies from the NICHD Neonatal Research Network. Semin Perinatol. 2003 Aug;27(4):293-301. doi: 10.1016/s0146-0005(03)00046-6.
- Chakraborty S, Joseph DV, Bankart MJ, Petersen SA, Wailoo MP. Fetal growth restriction: relation to growth and obesity at the age of 9 years. Arch Dis Child Fetal Neonatal Ed. 2007 Nov;92(6):F479-83. doi: 10.1136/adc.2006.109728. Epub 2007 Feb 14.
- Valsamakis G, Kanaka-Gantenbein C, Malamitsi-Puchner A, Mastorakos G. Causes of intrauterine growth restriction and the postnatal development of the metabolic syndrome. Ann N Y Acad Sci. 2006 Dec;1092:138-47. doi: 10.1196/annals.1365.012.
- Adams KM, Eschenbach DA. The genetic contribution towards preterm delivery. Semin Fetal Neonatal Med. 2004 Dec;9(6):445-52. doi: 10.1016/j.siny.2004.04.001.
- Kramer MS. Intrauterine growth and gestational duration determinants. Pediatrics. 1987 Oct;80(4):502-11.
- Hao K, Wang X, Niu T, Xu X, Li A, Chang W, Wang L, Li G, Laird N, Xu X. A candidate gene association study on preterm delivery: application of high-throughput genotyping technology and advanced statistical methods. Hum Mol Genet. 2004 Apr 1;13(7):683-91. doi: 10.1093/hmg/ddh091. Epub 2004 Feb 19.
- Clausson B, Lichtenstein P, Cnattingius S. Genetic influence on birthweight and gestational length determined by studies in offspring of twins. BJOG. 2000 Mar;107(3):375-81. doi: 10.1111/j.1471-0528.2000.tb13234.x.
- Treloar SA, Macones GA, Mitchell LE, Martin NG. Genetic influences on premature parturition in an Australian twin sample. Twin Res. 2000 Jun;3(2):80-2. doi: 10.1375/136905200320565526.
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- CHW 09/102, GC 900
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