Evidence map›Paper›PMID 28843181›Full record

ArticleDomestic animal endocrinology2018

Early prenatal androgen exposure reduces testes size and sperm concentration in sheep without altering neuroendocrine differentiation and masculine sexual behavior.

C M Scully, C T Estill, R Amodei, A McKune, K P Gribbin, M Meaker, F Stormshak, C E Roselli

Abstract read
In one paragraph

Article in Domestic animal endocrinology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

C M ScullyDepartment of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
C T EstillDepartment of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331-4501, USA; College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331-4501, USA.
R AmodeiDepartment of Physiology and Pharmacology, Oregon Health and Science University, Portland, OR 97239-3098, USA.
A McKuneDepartment of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331-4501, USA.
K P GribbinDepartment of Physiology and Pharmacology, Oregon Health and Science University, Portland, OR 97239-3098, USA.
M MeakerDepartment of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331-4501, USA.
F StormshakDepartment of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331-4501, USA.
C E RoselliDepartment of Physiology and Pharmacology, Oregon Health and Science University, Portland, OR 97239-3098, USA. Electronic address: rosellic@ohsu.edu.
Oregon State University · USOregon Health & Science University · USLouisiana State University · US

Funding

Upgrade of confocal microscopy at the Oregon National Primate Research CenterP51OD011092 · OD · OREGON HEALTH & SCIENCE UNIVERSITY · PI Bonnie J. Nagel · 2012 to 2026
$203.9M
A Ram Model of Neuroendocrine FunctionR01OD011047 · OD · OREGON HEALTH & SCIENCE UNIVERSITY · PI ROSELLI, CHARLES E. · 2012 to 2023
$4.8M
NIH HHS P51 OD011092NIH HHS R01 OD011047
6 · The paper itself

Abstract

Prenatal androgens are largely responsible for growth and differentiation of the genital tract and testis and for organization of the control mechanisms regulating male reproductive physiology and behavior. The aim of the present study was to evaluate the impact of inappropriate exposure to excess testosterone (T) during the first trimester of fetal development on the reproductive function, sexual behavior, and fertility potential of rams. We found that biweekly maternal T propionate (100 mg) treatment administered from Day 30-58 of gestation significantly decreased (P < 0.05) postpubertal scrotal circumference and sperm concentration. Prenatal T exposure did not alter ejaculate volume, sperm motility and morphology or testis morphology. There was, however, a trend for more T-exposed rams than controls to be classified as unsatisfactory potential breeders during breeding soundness examinations. Postnatal serum T concentrations were not affected by prenatal T exposure, nor was the expression of key testicular genes essential for spermatogenesis and steroidogenesis. Basal serum LH did not differ between treatment groups, nor did pituitary responsiveness to GnRH. T-exposed rams, like control males, exhibited vigorous libido and were sexually attracted to estrous females. In summary, these results suggest that exposure to exogenous T during the first trimester of gestation can negatively impact spermatogenesis and compromise the reproductive fitness of rams.

Indexed as

Prenatal Exposure Delayed EffectsAnimalsFemaleGonadotropin-Releasing HormoneLuteinizing HormoneMalePregnancySex CharacteristicsSexual Behavior, AnimalSheepSpermatogenesisSperm CountTestisTestosteroneGonadotropin-Releasing HormoneLuteinizing HormoneTestosteroneDevelopmental programmingGestational hyperandrogenismMale reproductionOvineSexual behaviorTestis

Identifiers

PMID28843181
PMCPMC5705409
OpenAlexW2741315810

What OpenQuestion holds

Textmetadata
LicenceTDM
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.