Evidence map›Paper›PMID 19073285›Full record

ArticleRespiratory physiology & neurobiology2009

Serotonergic projections from the caudal raphe nuclei to the hypoglossal nucleus in male and female rats.

Jessica R Barker, Cathy F Thomas, Mary Behan

Open access · greenAbstract readComparative Study
In one paragraph

Article in Respiratory physiology & neurobiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.8field-weighted citation impact, top 33% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Role of raphe magnus 5-HTRespiratory research · 2022
    Article
  4. Review
  5. Cervical spinal 5-HTJournal of applied physiology (Bethesda, Md. : 1985) · 2019
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Melanocortin-4 receptor expression in the rostral ventromedial medulla involved in modulation of nociception in transgenic mice.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2013
    Article
  12. Article
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  15. 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

3 authors at 1 institution in 1 country.

Jessica R BarkerDepartment of Comparative Biosciences, University of Wisconsin, 2015 Linden Drive, Madison, WI 53706-1102, United States.
Cathy F Thomas
Mary Behan
University of Wisconsin–Madison · US

Funding

Age,Gender, Serotonin and Respiratory ControlR01AG018760 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI BEHAN, MARY · 2001 to 2011
$2.5M
RESEARCH TRAINING OF VETERINARY STUDENTS IN WISCONSINT32RR017503 · NCRR · UNIVERSITY OF WISCONSIN-MADISON · PI BJORLING, DALE EDMOND · 2003 to 2011
$774k
NCRR NIH HHS T32 RR017503NCRR NIH HHS T32 RR17503NIA NIH HHS AG18760NIA NIH HHS R01 AG018760
6 · The paper itself

Abstract

The respiratory control system is sexually dimorphic. In many brain regions, including respiratory motor nuclei, serotonin (5HT) levels are higher in females than in males. We hypothesized that there could be sex differences in 5HT input to the hypoglossal nucleus, a region of the brainstem involved in upper airway control. Adult Fischer 344 rats were anesthetized and a retrograde transsynaptic neuroanatomical tracer, Bartha pseudorabies virus (PRV), was injected into the tongue. Sections through the medulla were reacted immunocytochemically for the presence of (i) PRV, (ii) tryptophan hydroxylase (TPH; marker of 5HT neurons), (iii) PRV combined with TPH, and (iv) 5HT. Sex hormone levels were measured in female rats and correlated with TPH immunoreactivity, as hypoglossal 5HT levels vary with the estrous cycle. The number of PRV neurons was comparable in male and female rats. The number and distribution of TPH immunoreactive neurons in the caudal raphe nuclei were similar in male and female rats. The subset of 5HT neurons that innervate hypoglossal motoneurons was also similar in male and female rats. With the exception of the ventrolateral region of the hypoglossal nucleus, 5HT immunoreactivity was similar in male and female rats. These data suggest that sex differences in 5HT modulation of hypoglossal motoneurons in male and female rats are not the result of sex differences in TPH or 5HT, but may result from differences in neurotransmitter release and reuptake, location of 5HT synaptic terminals on hypoglossal motoneurons, pre- and postsynaptic 5HT receptor expression, or the distribution of sex hormone receptors on hypoglossal or caudal raphe neurons.

Indexed as

Sex CharacteristicsAnimalsBrain MappingCell CountEstradiolEstrous CycleFemaleHerpesvirus 1, SuidHypoglossal NerveMaleMotor NeuronsNeural PathwaysProgesteroneRaphe NucleiRatsRats, Inbred F344EstradiolProgesteroneSerotoninTryptophan Hydroxylase

Identifiers

PMID19073285
PMCPMC2762192
OpenAlexW2109226208

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.