Evidence map›Paper›PMID 35745198›Full record

ArticleNutrients2022

The Effect of Nutritional Intervention with Lactoferrin, Galactooligosacharides and Vitamin D on the Gut Microbiota Composition of Healthy Elderly Women.

Prokopis Konstanti, Marloes van Splunter, Erik van den Brink, Clara Belzer, Arjen Nauta, R J Joost van Neerven, Hauke Smidt

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% of its field
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Review
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  7. Review
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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

7 authors at 2 institutions in 1 country.

Prokopis KonstantiLaboratory of Microbiology, Wageningen University & Research, 6700 EH Wageningen, The Netherlands.ORCID 0000-0001-7160-1696
Marloes van SplunterCell Biology & Immunology, Wageningen University & Research, 6700 AH Wageningen, The Netherlands.
Erik van den BrinkCell Biology & Immunology, Wageningen University & Research, 6700 AH Wageningen, The Netherlands.
Clara BelzerLaboratory of Microbiology, Wageningen University & Research, 6700 EH Wageningen, The Netherlands.
Arjen NautaAquaculture and Fisheries, Wageningen University & Research, 6700 AH Wageningen, The Netherlands.
R J Joost van NeervenCell Biology & Immunology, Wageningen University & Research, 6700 AH Wageningen, The Netherlands.ORCID 0000-0002-3991-5297
Hauke SmidtLaboratory of Microbiology, Wageningen University & Research, 6700 EH Wageningen, The Netherlands.ORCID 0000-0002-6138-5026
Wageningen University & Research · NLFrieslandCampina (Netherlands) · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Nutritional supplements, such as bovine lactoferrin (bLF), have been studied for their immunomodulatory properties, but little is known of their effect on the gut microbiota composition of the elderly when supplemented alone or combined with other nutritional supplements such as prebiotics and micronutrients. In the present study, fecal samples from a double-blind, placebo-controlled nutritional intervention study were analysed. At baseline (T1), 25 elderly women were distributed into two groups receiving dietary intervention (n = 12) or placebo treatment (n = 13) for 9 weeks. During the first 3 weeks of the study (T2), the intervention group consumed 1 g/day bLF, followed by 3 weeks (T3) of 1 g/day bLF and 2.64 g/day active galactooligosaccharides (GOS), and 3 weeks (T4) of 1 g/day bLF, 2.64 g/day GOS and 20 μg/day of vitamin D. The placebo group received maltodextrin, in dosages matching those of the intervention group. Fecal bacterial composition was profiled using partial 16S rRNA gene amplicon sequencing. Short-chain fatty acids (SCFA) were determined in fecal water as were levels of calprotectin, zonulin, and alpha-1-antitrypsin, as markers of gastrointestinal barrier and inflammation. Results: A significant increase was observed in the relative abundance of the genus Holdemanella (p < 0.01) in the intervention group compared to the placebo at T1. During T2, Bifidobacterium relative abundance increased significantly (p < 0.01) in the intervention group compared to the placebo, and remained significantly higher until the end of the study. No other effect was reported during T3. Furthermore, concentrations of SCFAs and calprotectin, zonulin and alpha-1-antitrypsin did not change during the intervention, although zonulin levels increased significantly within the placebo group by the end of the intervention. Conclusions: We conclude that supplementation of bLF enhanced the relative abundance of Holdemanella in the fecal microbiota of healthy elderly women, and further addition of GOS enhanced the relative abundance of Bifidobacterium.

Indexed as

Gastrointestinal MicrobiomeAgedBifidobacteriumFecesFemaleHumansLactoferrinLeukocyte L1 Antigen ComplexRNA, Ribosomal, 16SVitamin DVitaminsLactoferrinLeukocyte L1 Antigen ComplexRNA, Ribosomal, 16SVitamin DVitaminsbovine lactoferrinelderlygalactooligosaccharidesgut microbiota

Identifiers

PMID35745198
PMCPMC9228949
OpenAlexW4282946622

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.