Cited by 88Neonatal and fetal brain pathologyBirth, Development, and HealthNeonatal Respiratory Health Research

Adverse Effects of Antenatal Glucocorticoids on Cerebral Myelination in Sheep

Antonow-Schlorke, Iwa, Helgert, Alexandra, Gey, Christine, Coksaygan, Turhan, Schubert, Harald, Nathanielsz, Peter W., Witte, Otto W., Schwab, Matthias·2009·Obstetrics & Gynecology

Abstract

OBJECTIVE: To determine in fetal sheep the effect of betamethasone on myelination in relation to stage of myelination, number of treatment courses, dose, and route of administration. METHODS: Fetal expression of myelin basic protein (MBP), a marker of mature oligodendrocytes and myelin, was determined between 0.27 and 0.93 gestation. Short-term betamethasone effects were examined 24 hours after one maternal intramuscular treatment course (weight adjusted to equal the clinical dose of 2 x 8 mg betamethasone to a 70-kg woman) at 0.63, 0.75, and 0.87 gestation or after continuous 48-hour fetal intravenous infusion at 0.75 and 0.87 gestation. Lasting effects were examined 20 days after one and two treatment courses weight-adapted to the clinical dose of 2 x 8 mg or 2 x 12 mg betamethasone at 0.75 gestation. RESULTS: Myelin basic protein immunoreactivity was first detected in the internal capsule at 0.53 gestation, followed by the centrum semiovale, the superficial white matter, and corpus callosum at 0.63 gestation. Within 24 hours after treatment, betamethasone reduced the number of mature oligodendrocytes and MBP immunoreactivity. The effect decreased with gestational age. Maternal and fetal betamethasone administration had similar effects. Loss of MBP immunoreactivity was not reversed 20 days after two treatment courses, independent of dose. CONCLUSION: Betamethasone-induced delayed cerebral myelination is dependent on the stage of brain development in sheep. Betamethasone-related disturbances in myelination and any potential contribution to childhood behavior deficits need to be confirmed in clinical studies.

Integrity signals

Registry

Crossref · 10.1097/aog.0b013e3181924d3b

Cites

54 of 54 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

1 retracted

Flagged first, then by citations

1 of the 55 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Antonow-Schlorke, I., Helgert, A., Gey, C., Coksaygan, T., Schubert, H., Nathanielsz, P. W., Witte, O. W., & Schwab, M.
Affiliations
  • Friedrich Schiller University Jena (DE)
  • The University of Texas at San Antonio Health Science Center (US)
Venue
Obstetrics & Gynecology
Published
2009-01
Volume
113
Issue
1
Pages
142-151
ISSN
0029-7844 (ISSN-L)
OpenAlex
W2324910294
Cited by
88
References
55
Citations by year
2026: 3 · 2025: 5 · 2024: 2 · 2023: 4 · 2022: 7 · 2021: 7 · 2020: 3 · 2019: 8 · 2018: 4 · 2017: 3 · 2016: 7 · 2015: 4 · 2014: 8 · 2013: 10 · 2012: 6
FWCI
3.56
Type
journal article
Language
en
Open access
closed
Locations
  • Obstetrics and Gynecology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Heart, Lung, and Blood Institute (HL-55416, R01HL055416)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Neonatal and fetal brain pathology
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Neonatal Respiratory Health Research
Keywords
antenatal glucocorticoids, betamethasone, myelin basic protein, oligodendrocytes, fetal brain development, fetal sheep, glucocorticoid adverse effects, dose dependence, gestational age
MeSH terms
Animals, Betamethasone, Brain, Corpus Callosum, Myelin Basic Protein, Female, Fetal Blood, Fetus, Glucocorticoids, Myelin Sheath, Oligodendroglia, Pregnancy, Sheep, Domestic

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review