- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT01841268
Skin Lipid Profiles in Term and Preterm Infants
28 giugno 2019 aggiornato da: 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.
Panoramica dello studio
Stato
Completato
Condizioni
Descrizione dettagliata
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).
Tipo di studio
Osservativo
Iscrizione (Effettivo)
25
Contatti e Sedi
Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.
Luoghi di studio
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California
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Davis, California, Stati Uniti, 95616
- University of California, Davis
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Sacramento, California, Stati Uniti, 95817
- University of California Davis Medical Center NICU
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Criteri di partecipazione
I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.
Criteri di ammissibilità
Età idonea allo studio
Non più vecchio di 4 settimane (Bambino)
Accetta volontari sani
Sì
Sessi ammissibili allo studio
Tutto
Metodo di campionamento
Campione non probabilistico
Popolazione di studio
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.
Descrizione
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
Piano di studio
Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.
Come è strutturato lo studio?
Dettagli di progettazione
Coorti e interventi
Gruppo / Coorte |
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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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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Skin Proteome
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 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)
Lasso di tempo: 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
Lasso di tempo: 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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Collaboratori e investigatori
Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.
Sponsor
Investigatori
- Investigatore principale: Mark Underwood, M.D., University of California, Davis
Pubblicazioni e link utili
La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.
Pubblicazioni generali
- 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.
Collegamenti utili
Studiare le date dei record
Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.
Studia le date principali
Inizio studio
1 maggio 2010
Completamento primario (Effettivo)
1 dicembre 2016
Completamento dello studio (Effettivo)
1 dicembre 2016
Date di iscrizione allo studio
Primo inviato
23 aprile 2013
Primo inviato che soddisfa i criteri di controllo qualità
25 aprile 2013
Primo Inserito (Stima)
26 aprile 2013
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
2 luglio 2019
Ultimo aggiornamento inviato che soddisfa i criteri QC
28 giugno 2019
Ultimo verificato
1 giugno 2019
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 240869
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .