- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01841268
Skin Lipid Profiles in Term and Preterm Infants
28. juni 2019 opdateret af: University of California, Davis
This study is designed to compare the skin lipid and protein composition between term and premature infants and determine how the skin composition changes over the first four weeks of life.
The investigators hope to elucidate the unique characteristics of premature skin by measuring the lipid and protein content in skin, how it changes during the first month of life, and how it varies with formula feeding versus breast feeding.
Additionally, the investigators will study the relationships among diet, skin composition and plasma lipids in premature infants over the first four weeks of life.
Studieoversigt
Status
Afsluttet
Betingelser
Detaljeret beskrivelse
Infants in the UCDMC Neonatal Intensive Care Unit with no congenital or acquired diseases of the skin or cardiovascular system will be enrolled after informed consent has been obtained from their parents.
This is an observational study with no intervention.
Procedures: At enrollment, 2 weeks and 4 weeks of age, skin lipids will be collected using three methods.
First two small pieces of blotting paper (2 cm x 2 cm) will be placed on the infant's skin, one on the left side of the abdomen just above the umbilicus and one on the left inner thigh.
The blotting paper will be left in place for 15 seconds and then removed.
Second, two adhesive discs will be placed on the skin, one just below the umbilicus and one on the right inner thigh.
The discs will be left in place for 30 seconds and then removed.
Third, two areas of skin, one on the right side of the abdomen just above the umbilicus and the other on the inner right thigh, will be gently swabbed with sterile cotton swabs (one for each location).
The intent is to remove a thin layer of oil/lipid from the skin upon removal of the paper or the adhesive disc or with swabbing without disrupting the skin surface (similar to taking a fingerprint).
Blood specimens will be obtained three times, each time 1 ml : once at enrollment, at 2 weeks and the last one at 4 weeks of age, to generate a plasma lipoprotein profile and size distribution (HDL, LDL, VLDL, total cholesterol).
For infants that are fed expressed human milk, we will also obtain a sample of mother's milk for analysis of lipid profile (about 2 ml).
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
25
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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California
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Davis, California, Forenede Stater, 95616
- University of California, Davis
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Sacramento, California, Forenede Stater, 95817
- University of California Davis Medical Center NICU
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
Ikke ældre end 4 uger (Barn)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Newborn infants in the NICU at UCDMC.
20 neonates will be enrolled, 5 in each of the following gestational age categories: 23-27 weeks, 28-32 weeks, 33-36 weeks, >36 weeks.
Infants will be involved in the study from enrollment until 4 weeks of age or until discharge, whichever comes first.
Beskrivelse
Inclusion Criteria:
- infants who are likely to be inpatients in the NICU for at least 4 weeks
Exclusion Criteria:
- congenital or acquired skin disease,
- cyanotic congenital heart disease,
- neonates that are not viable and
- those with lethal anomalies such as anencephaly, trisomy 13, trisomy 18, renal agenesis
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
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Preterm Infants
Infants born prematurely will have their skin, sebum, microbiota, blood, and mother's breast milk analyzed for changes between 0, 2, and 4 weeks of life.
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Term Infants, Control
Term infants enrolled in the UC Davis Lactation Study (protocol # 216198) will serve as the control group for this study; they will have their skin, sebum, microbiota, and mother's breast milk analyzed for changes between 0, 2, and 4 weeks of life.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Skin Proteome
Tidsramme: Change between 0, 2, and 4 weeks
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Premie infant skin proteome changes will be determined between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life.
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Change between 0, 2, and 4 weeks
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Skin Lipidome
Tidsramme: Changes between 0, 2, and 4 weeks
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Premie infant skin lipidome changes will be determined between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life
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Changes between 0, 2, and 4 weeks
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Skin Microbiota
Tidsramme: Changes between 1, 2, and 4 weeks
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Premie infant skin microbiota changes will be determined between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life
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Changes between 1, 2, and 4 weeks
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Skin Sebum
Tidsramme: Changes between 0, 2, and 4 weeks
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Premie infant skin sebum changes will be determined between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life
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Changes between 0, 2, and 4 weeks
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Breast Milk Lipidome
Tidsramme: Changes between 0, 2, and 4 weeks
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Mothers of premie infants will have their breast milk lipidome analyzed for changes between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life
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Changes between 0, 2, and 4 weeks
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Breast Milk Fatty Acids
Tidsramme: Changes between 0, 2, and 4 weeks
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Mothers of premie infants will have their breast milk fatty acids analyzed for changes between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life
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Changes between 0, 2, and 4 weeks
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Plasma Lipoprotein Profile(HDL, LDL, VLDL, total cholesterol)
Tidsramme: Changes between 0, 2, and 4 weeks
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Premie infant lipoprotein (HDL, LDL, VLDL, total cholesterol) profile changes will be determined between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life
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Changes between 0, 2, and 4 weeks
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Plasma Lipoprotein Size Distribution(HDL, LDL, VLDL, total cholesterol)
Tidsramme: Changes between 0, 2, and 4 weeks
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Premie infant lipoprotein (HDL, LDL, VLDL, total cholesterol) size distribution changes will be determined between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life
|
Changes between 0, 2, and 4 weeks
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Plasma Fatty Acid Analysis
Tidsramme: Changes between 0, 2, and 4 weeks
|
Premie infant plasma fatty acid analysis changes will be determined between 0 weeks (less than 5 days of life), 2 weeks, and 4 weeks of life
|
Changes between 0, 2, and 4 weeks
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Ledende efterforsker: Mark Underwood, M.D., University of California, Davis
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- Nilsson GE. Measurement of water exchange through skin. Med Biol Eng Comput. 1977 May;15(3):209-18. doi: 10.1007/BF02441040. No abstract available.
- Agren J, Sjors G, Sedin G. Ambient humidity influences the rate of skin barrier maturation in extremely preterm infants. J Pediatr. 2006 May;148(5):613-7. doi: 10.1016/j.jpeds.2005.11.027.
- Jiang YJ, Barish G, Lu B, Evans RM, Crumrine D, Schmuth M, Elias PM, Feingold KR. PPARdelta activation promotes stratum corneum formation and epidermal permeability barrier development during late gestation. J Invest Dermatol. 2010 Feb;130(2):511-9. doi: 10.1038/jid.2009.245. Epub 2009 Aug 13.
- Feingold KR, Schmuth M, Elias PM. The regulation of permeability barrier homeostasis. J Invest Dermatol. 2007 Jul;127(7):1574-6. doi: 10.1038/sj.jid.5700774.
- Weerheim A, Ponec M. Determination of stratum corneum lipid profile by tape stripping in combination with high-performance thin-layer chromatography. Arch Dermatol Res. 2001 Apr;293(4):191-9. doi: 10.1007/s004030100212.
- Holleran WM, Takagi Y, Uchida Y. Epidermal sphingolipids: metabolism, function, and roles in skin disorders. FEBS Lett. 2006 Oct 9;580(23):5456-66. doi: 10.1016/j.febslet.2006.08.039. Epub 2006 Sep 1.
- Bennett K, Callard R, Heywood W, Harper J, Jayakumar A, Clayman GL, Di WL, Mills K. New role for LEKTI in skin barrier formation: label-free quantitative proteomic identification of caspase 14 as a novel target for the protease inhibitor LEKTI. J Proteome Res. 2010 Aug 6;9(8):4289-94. doi: 10.1021/pr1003467.
- Rice RH, Rocke DM, Tsai HS, Silva KA, Lee YJ, Sundberg JP. Distinguishing mouse strains by proteomic analysis of pelage hair. J Invest Dermatol. 2009 Sep;129(9):2120-5. doi: 10.1038/jid.2009.52. Epub 2009 Mar 19.
- Scoble JA, Smilowitz JT, Argov-Argaman N, German JB, Underwood MA. Plasma Lipoprotein Particle Subclasses in Preterm Infants. Am J Perinatol. 2018 Mar;35(4):369-379. doi: 10.1055/s-0037-1607347. Epub 2017 Oct 26.
- Spevacek AR, Smilowitz JT, Chin EL, Underwood MA, German JB, Slupsky CM. Infant Maturity at Birth Reveals Minor Differences in the Maternal Milk Metabolome in the First Month of Lactation. J Nutr. 2015 Aug;145(8):1698-708. doi: 10.3945/jn.115.210252. Epub 2015 Jun 3.
Hjælpsomme links
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. maj 2010
Primær færdiggørelse (Faktiske)
1. december 2016
Studieafslutning (Faktiske)
1. december 2016
Datoer for studieregistrering
Først indsendt
23. april 2013
Først indsendt, der opfyldte QC-kriterier
25. april 2013
Først opslået (Skøn)
26. april 2013
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
2. juli 2019
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
28. juni 2019
Sidst verificeret
1. juni 2019
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 240869
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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