Evidence map›Paper›PMID 33986316›Full record

ArticleScientific reports2021

Daily variation of macronutrient concentrations in mature human milk over 3 weeks.

Gabriela E Leghi, Ching T Lai, Ardra Narayanan, Merryn J Netting, Michael Dymock, Alethea Rea, Mary E Wlodek, Donna T Geddes, Beverly S Muhlhausler

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Observational
  4. Review
  5. Article
  6. Observational
  7. Article
  8. Article
  9. Early life programming of health and disease: The long-term consequences of obesity in pregnancy.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2022
    Review
  10. Review
  11. Review
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Gabriela E LeghiSchool of Agriculture, Food and Wine, The University of Adelaide, Adelaide, Australia.
Ching T LaiSchool of Molecular Sciences, The University of Western Australia, Perth, Australia.
Ardra NarayananSchool of Molecular Sciences, The University of Western Australia, Perth, Australia.
Merryn J NettingWomen and Kids Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia.
Michael DymockCentre for Applied Statistics, University of Western Australia, Perth, Australia.
Alethea ReaMathematics and Statistics, Murdoch University, Perth, Australia.
Mary E WlodekDepartment of Physiology, School of Biomedical Sciences, The University of Melbourne, Melbourne, Australia.
Donna T GeddesSchool of Molecular Sciences, The University of Western Australia, Perth, Australia.
Beverly S MuhlhauslerCommonwealth Scientific and Industrial Research Organisation (CSIRO), Adelaide, Australia. bev.muhlhausler@csiro.au.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human milk (HM) composition is known to be highly variable, both between individuals and across the duration of lactation. It is less clear, however, to what extent fat, lactose and protein concentrations in HM change daily over shorter time periods in mature HM, and no studies have evaluated this to date. The aim of this study was to systematically assess and compare HM macronutrient concentrations in samples collected at different times of day, from left and right breasts and daily across a 3-week period in the same woman. Fifteen lactating women (1.6-4.9 months postpartum) collected daily pre-feed HM samples from both breasts each morning for 21 consecutive days and completed intensive sampling once a week (morning, afternoon and evening samples) during this period. Concentrations of fat, protein and lactose in HM did not differ according to time of day, day of week or breast used for collection. The results of this study suggest that pre-feed samples collected at any point across a 3-week period and from either the left or right breast provide comparable measures of fat, protein and lactose concentrations in mature HM, in pragmatic studies where women are collecting their own HM samples.Clinical trial registration: Australian New Zealand Clinical Trials Registry (ACTRN12619000606189).

Indexed as

AdultAustraliaBreast FeedingFemaleHumansLactationLactoseMilk, HumanMilk ProteinsNutrientsTime FactorsLactoseMilk ProteinsNutrients

Identifiers

PMID33986316
PMCPMC8119942

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.