Evidence map›Paper›PMID 25805190›Full record

ArticleAmerican journal of physiology. Endocrinology and metabolism2015

Formate metabolism in fetal and neonatal sheep.

Shannon E Washburn, Marie A Caudill, Olga Malysheva, Amanda J MacFarlane, Nathalie A Behan, Brian Harnett, Luke MacMillan, Theerawat Pongnopparat, John T Brosnan, Margaret E Brosnan

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Endocrinology and metabolism, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

21 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
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  12. Article
  13. Formate metabolism in health and disease.Molecular metabolism · 2020
    Review
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  16. Review
  17. Observational
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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

10 authors at 4 institutions in 2 countries.

Shannon E WashburnDepartment of Veterinary Physiology and Pharmacology and Michael DeBakey Institute, College of Veterinary Medicine and Biomedical Sciences, Texas A & M University, College Station, Texas;
Marie A CaudillDivision of Nutritional Sciences, Cornell University, Ithaca, New York;
Olga MalyshevaDivision of Nutritional Sciences, Cornell University, Ithaca, New York;
Amanda J MacFarlaneNutrition Research Division, Health Canada, Ottawa, Ontario, Canada; and.
Nathalie A BehanNutrition Research Division, Health Canada, Ottawa, Ontario, Canada; and.
Brian HarnettDepartment of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.
Luke MacMillanDepartment of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.
Theerawat PongnopparatDepartment of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.
John T BrosnanDepartment of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada jbrosnan@mun.ca.
Margaret E BrosnanDepartment of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.
Memorial University of Newfoundland · CACornell University · USHealth Canada · CATexas A&M University · US

Funding

OVINE MODEL SYSTEM FOR ALCOHOL RELATED BIRTH DEFECTSR01AA010940 · NIAAA · TEXAS A&M UNIVERSITY SYSTEM · PI WASHBURN, SHANNON E. · 1997 to 2012
$3.5M
Translational Studies of FASD Using a Sheep Model-U01U01AA017120 · NIAAA · TEXAS A&M AGRILIFE RESEARCH · PI WASHBURN, SHANNON E. · 2007 to 2011
$1.3M
Mechanisms and Nutritional Intervention for Fetal Alcohol Spectrum DisordersK08AA018166 · NIAAA · TEXAS A&M AGRILIFE RESEARCH · PI WASHBURN, SHANNON E. · 2010 to 2012
$264k
CIHRNIAAA NIH HHS K08 AA018166NIAAA NIH HHS K08AA18166-2NIAAA NIH HHS R01 AA010940NIAAA NIH HHS U01 AA017120
6 · The paper itself

Abstract

By virtue of its role in nucleotide synthesis, as well as the provision of methyl groups for vital methylation reactions, one-carbon metabolism plays a crucial role in growth and development. Formate, a critical albeit neglected component of one-carbon metabolism, occurs extracellularly and may provide insights into cellular events. We examined formate metabolism in chronically cannulated fetal sheep (gestation days 119-121, equivalent to mid-third trimester in humans) and in their mothers as well as in normal full-term lambs. Plasma formate levels were much higher in fetal lamb plasma and in amniotic fluid (191 ± 62 and 296 ± 154 μM, respectively) than in maternal plasma (33 ± 13 μM). Measurements of folate, vitamin B12, and homocysteine showed that these high formate levels could not be due to vitamin deficiencies. Elevated formate levels were also found in newborn lambs and persisted to about 8 wk of age. Formate was also found in sheep milk. Potential precursors of one-carbon groups were also measured in fetal and maternal plasma and in amniotic fluid. There were very high concentrations of serine in the fetus (∼1.6 mM in plasma and 3.5 mM in the amniotic fluid) compared with maternal plasma (0.19 mM), suggesting increased production of formate; however, we cannot rule out decreased formate utilization. Dimethylglycine, a choline metabolite, was also 30 times higher in the fetus than in the mother.

Indexed as

Pregnancy, AnimalSheepAmniotic FluidAnimalsAnimals, NewbornFemaleFetusFolic AcidFormatesHomocysteinePostpartum PeriodPregnancyVitamin B 12Folic AcidFormatesformic acidHomocysteineVitamin B 12folatemilkmitochondriaone-carbon metabolismserinevitamin B12

Identifiers

PMID25805190
PMCPMC4436996
OpenAlexW2001457307

What OpenQuestion holds

Textmetadata
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.