Evidence map›Paper›PMID 31761973›Full record

ArticleEuropean journal of pediatrics2020

The impact of vitamin B12 deficiency on infant gut microbiota.

Perran Boran, Hatice Ezgi Baris, Eda Kepenekli, Can Erzik, Ahmet Soysal, Duy M Dinh

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Article in European journal of pediatrics, 2020. 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.

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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

6 authors.

Perran BoranDepartment of Pediatrics, Division of Social Pediatrics, Marmara University School of Medicine, Istanbul, Turkey.
Hatice Ezgi BarisDepartment of Pediatrics, Division of Social Pediatrics, Marmara University School of Medicine, Istanbul, Turkey. ezgi_aksu@yahoo.com.ORCID http://orcid.org/0000-0003-3396-8002
Eda KepenekliDepartment of Pediatrics, Division of Pediatric Infectious Diseases, Marmara University School of Medicine, Istanbul, Turkey.
Can ErzikDepartment of Medical Biology, Marmara University School of Medicine, Istanbul, Turkey.
Ahmet SoysalPediatric Infectious Diseases, Memorial Hospital, Istanbul, Turkey.
Duy M DinhDiversigen, Houston, USA.

Funding

Marmara University Scientific Research Commission SAG-A-091116-0488
6 · The paper itself

Abstract

Although physiologic and neurologic consequences of micronutrient deficiencies have been addressed extensively, less is known about their impact on developing gut microbiota. Vitamin B12 deficiency is a common micronutrient deficiency in infants. We aimed to analyze the gut microbial composition of exclusively breastfed infants aged between 4 and 6 months with and without vitamin B12 deficiency by 16S rRNA gene sequencing. In a subgroup of infants with vitamin B12 deficiency, stool samples are recollected and reanalyzed after vitamin B12 supplementation. A total of 88 infants' stool samples (median age 4 months [IQR 4-5], 50% males) were analyzed, of which 28 (31.8%) were vitamin B12 sufficient and 60 (68.2%) were vitamin B12 insufficient. Comparisons between vitamin B12-sufficient and vitamin B12-insufficient infants revealed no evidence of differences in the microbiota. Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes were the most abundant phyla in all groups. There was no difference between the pre- and post-treatment composition of gut microbiota.Conclusion: Vitamin B12-deficient infants have similar gut microbial composition as vitamin B12-sufficient infants. Since the samples were collected at an early period of life and the exposure to deficiency was relatively short, it may be possible that the effects were not fully established.What is Known: • Vitamin B12 is an essential vitamin for humans and also a crucial compound for human gut microbiota. • Vitamin B12 deficiency is common in exclusively breastfed infants. • In contrast to the adult gut microbiota, infant gut microbiota has been shown to have decreased capacity for de novo synthesis of vitamin B12 and depend on dietary source of vitamin B12.What is New: • There is no difference in the gut microbial composition of vitamin B12-deficient and vitamin B12-sufficient infants.

Indexed as

Gastrointestinal MicrobiomeBreast FeedingCase-Control StudiesFecesFemaleHumansInfantMaleRNA, Ribosomal, 16STurkeyVitamin B 12Vitamin B 12 DeficiencyVitamin B ComplexRNA, Ribosomal, 16SVitamin B 12Vitamin B ComplexBreastfeedingGut microbiotaInfantsMicronutrientsVitamin B12

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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.