Evidence map›Paper›PMID 31537252›Full record

ArticleReproduction, fertility, and development2019

Analysis of spermatogenesis and fertility in adult mice with a hypomorphic mutation in the Mtrr gene.

Georgina E T Blake, Jessica Hall, Grace E Petkovic, Erica D Watson

Abstract read
In one paragraph

Article in Reproduction, fertility, and development, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
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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

4 authors.

Georgina E T BlakeDepartment of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EG, UK; and Centre for Trophoblast Research, University of Cambridge, Cambridge, CB2 3EG, UK.
Jessica HallDepartment of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EG, UK.
Grace E PetkovicDepartment of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EG, UK.
Erica D WatsonDepartment of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EG, UK; and Centre for Trophoblast Research, University of Cambridge, Cambridge, CB2 3EG, UK; and Corresponding author. Email: edw23@cam.ac.uk.

Funding

Wellcome Trust 105356
6 · The paper itself

Abstract

Recent research has focussed on the significance of folate metabolism in male fertility. Knocking down the mouse gene Mtrr impedes the progression of folate and methionine metabolism and results in hyperhomocysteinaemia, dysregulation of DNA methylation and developmental phenotypes (e.g. neural tube, heart and placenta defects). The Mtrrgt mouse line is a model of transgenerational epigenetic inheritance (TEI), the hypothesised cause of which is the inheritance of a yet-to-be determined epigenetic factor via the germline. We investigated Mtrrgt/gt testes and sperm function compared with control C57Bl/6J testes to explore potential defects that might confound our understanding of TEI in the Mtrrgt model. Histological analysis revealed that adult Mtrrgt/gt testes are more spherical in shape than C57Bl/6J testes, though serum testosterone levels were normal and spermatogenesis progressed in a typical manner. Spermatozoa collected from the cauda epididymis showed normal morphology, counts, and viability in Mtrrgt/gt males. Correspondingly, Mtrrgt spermatozoa contributed to normal pregnancy rates. Similar parameters were assessed in Mtrr+/+ and Mtrr+/gt males, which were normal compared with controls. Overall, our data showed that the Mtrrgt allele is unlikely to alter spermatogenesis or male fertility. Therefore, it is improbable that these factors confound the mechanistic study of TEI in Mtrrgt mice.

Indexed as

MutationAgingAnimalsFerredoxin-NADP ReductaseFertilityFolic AcidMaleMetabolic Networks and PathwaysMiceMice, Inbred C57BLMice, TransgenicSemen AnalysisSpermatogenesisFerredoxin-NADP ReductaseFolic Acidmethionine synthase reductase

Identifiers

PMID31537252
PMCPMC7116358

What OpenQuestion holds

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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.