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Sources of Bacterial Contamination in Human Milk Samples From the MiLC Trial

11 stycznia 2019 zaktualizowane przez: Cornell University

Sources of Bacterial Contamination in Human Milk Samples From the Milk in Life Conditions (MiLC) Trial

This observational study is a sub-study of the MiLC Trial (ClinicalTrials.gov Identifier: NCT03123874). Our objective is to characterize the bacterial communities of women's breasts, hands, their pump and milk collection kit, and their babies' mouths among the participants of the MiLC Trial. As part of the original protocol, we collected swabs of each of these areas from each dyad before women pumped with their own pumps. By characterizing these communities, we can identify from where the bacteria in human milk (HM) originates, and determine whether pumping with mother's own pumps enriches the bacterial communities of HM compared to pumping with a sterile pump.

Przegląd badań

Status

Zakończony

Warunki

Bacterial Communities

Typ studiów

Obserwacyjny

Zapisy (Rzeczywisty)

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Lokalizacje studiów

Stany Zjednoczone
- New York
  - Ithaca, New York, Stany Zjednoczone, 14853
    - Hay Laboratory, B75C Wing Hall, Cornell University

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

18 lat i starsze (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Tak

Płeć kwalifikująca się do nauki

Kobieta

Metoda próbkowania

Próbka bez prawdopodobieństwa

Badana populacja

Mother-infant dyads who participated in the MiLC Trial. These were healthy, lactating women 18 years or older. Women had no signs of breast infection and self-reported that they nor their infants had signs/symptoms of acute illness 7 days before participating in the study. We also restricted participation to women who pumped with electric breast pumps, who could donate 1 oz of their milk on two consecutive pumping sessions from the same breast, and women whose infants had not consumed formula within the past 2 weeks. A full description of eligibility criteria can be found on the original protocol (ClinicalTrials.gov Identifier: NCT03123874).

Opis

Inclusion Criteria:

Mother-infant dyads who participated in the MiLC Trial.

Exclusion Criteria:

Anyone who did not participate in the MiLC Trial.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

Liczba grup / kohort

Kohorty i interwencje

Grupa / Kohorta
MiLC Cohort Participants donated HM from two consecutive pumping sessions at home. Women pumped once with their own pump and milk collection kit, and once with a sterile and sterile collection kit. Both pumping sessions occurred at participants' homes between 0700 and 1100 hours. The second pumping session occurred within 3 hr (+/- 30 min) after the beginning of the first. Randomization was used to determine which pump was used first. Women elected from which breast they donated their HM and were asked not to nurse on that side 2 hr before the first pumping session and not until after the second. Before women pumped with their own pump, swabs were taken of the breast from which HM was donated, the women's dominant hand, their own bottle/flange, their own pumps (port of pump and tubing), and their babies' mouths. There was only one group but stratified enrollment was used to ensure equal numbers of women whose infants consumed HM only and women whose infants consumed HM and complementary foods.

Grupa / Kohorta

MiLC Cohort

Participants donated HM from two consecutive pumping sessions at home. Women pumped once with their own pump and milk collection kit, and once with a sterile and sterile collection kit. Both pumping sessions occurred at participants' homes between 0700 and 1100 hours. The second pumping session occurred within 3 hr (+/- 30 min) after the beginning of the first. Randomization was used to determine which pump was used first. Women elected from which breast they donated their HM and were asked not to nurse on that side 2 hr before the first pumping session and not until after the second. Before women pumped with their own pump, swabs were taken of the breast from which HM was donated, the women's dominant hand, their own bottle/flange, their own pumps (port of pump and tubing), and their babies' mouths.

There was only one group but stratified enrollment was used to ensure equal numbers of women whose infants consumed HM only and women whose infants consumed HM and complementary foods.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku	Opis środka	Ramy czasowe
Bacterial communities Ramy czasowe: 0 days after pumping	Bacterial communities of each swab (breast, hand, mother's own bottle/flange, mother's own pump/tubing, and infant mouth) will be determined by next-generation sequencing of the V1-V3 region of the 16S rRNA bacterial gene.	0 days after pumping

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Cornell University

Współpracownicy

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

University of Idaho

Śledczy

Dyrektor Studium: Sarah M Reyes, MS, Cornell University
Główny śledczy: Kathleen M Rasmussen, ScD, Cornell University
Główny śledczy: Anthony G Hay, PhD, Cornell University

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Rzeczywisty)

10 czerwca 2017

Zakończenie podstawowe (Rzeczywisty)

3 września 2017

Ukończenie studiów (Rzeczywisty)

3 września 2017

Daty rejestracji na studia

Pierwszy przesłany

7 grudnia 2017

Pierwszy przesłany, który spełnia kryteria kontroli jakości