- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT01841268
Skin Lipid Profiles in Term and Preterm Infants
28 juni 2019 uppdaterad av: 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.
Studieöversikt
Status
Avslutad
Betingelser
Detaljerad beskrivning
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).
Studietyp
Observationell
Inskrivning (Faktisk)
25
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
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California
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Davis, California, Förenta staterna, 95616
- University of California, Davis
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Sacramento, California, Förenta staterna, 95817
- University of California Davis Medical Center NICU
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
Inte äldre än 4 veckor (Barn)
Tar emot friska volontärer
Ja
Kön som är behöriga för studier
Allt
Testmetod
Icke-sannolikhetsprov
Studera befolkning
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.
Beskrivning
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
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
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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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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
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Skin Proteome
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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)
Tidsram: 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)
Tidsram: 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
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Changes between 0, 2, and 4 weeks
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Plasma Fatty Acid Analysis
Tidsram: Changes between 0, 2, and 4 weeks
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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
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Changes between 0, 2, and 4 weeks
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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Sponsor
Utredare
- Huvudutredare: Mark Underwood, M.D., University of California, Davis
Publikationer och användbara länkar
Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.
Allmänna 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.
Användbara länkar
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart
1 maj 2010
Primärt slutförande (Faktisk)
1 december 2016
Avslutad studie (Faktisk)
1 december 2016
Studieregistreringsdatum
Först inskickad
23 april 2013
Först inskickad som uppfyllde QC-kriterierna
25 april 2013
Första postat (Uppskatta)
26 april 2013
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
2 juli 2019
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
28 juni 2019
Senast verifierad
1 juni 2019
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 240869
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