Evidence map›Paper›PMID 21540345›Full record

ArticleThe Journal of physiology2011

Hysteresis in the sympathetic baroreflex: role of baseline nerve activity.

Emma C Hart, B Gunnar Wallin, Timothy B Curry, Michael J Joyner, Tomas Karlsson, Nisha Charkoudian

Open access · greenAbstract readComparative Study
In one paragraph

Article in The Journal of physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

32 citing papers in PubMed, 51 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Sympathetic baroreflex sensitivity is enhanced in postmenopausal women.Journal of applied physiology (Bethesda, Md. : 1985) · 2024
    Article
  5. Article
  6. Article
  7. Cardiovascular adjustments to cold pressor test in postmenopausal women and the impact of α1-adrenergic blockade.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2022
    Article
  8. Article
  9. Acute effects of sublingual nitroglycerin on cardiovagal and sympathetic baroreflex sensitivity.American journal of physiology. Regulatory, integrative and comparative physiology · 2021
    Article
  10. Article
  11. Article
  12. Sex differences in vascular transduction of sympathetic nerve activity.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2020
    Review
  13. Sex differences in baroreflex function in health and disease.The journal of physiological sciences : JPS · 2019
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Emma C HartDepartment of Anesthesiology, Mayo Clinic, 200 First St SW, Rochester, MN 59906, USA. hart.emma@mayo.edu
B Gunnar Wallin
Timothy B Curry
Michael J Joyner
Tomas Karlsson
Nisha Charkoudian
Mayo Clinic in Arizona · USUniversity of Gothenburg · SEMayo Clinic · US

Funding

MAYO CLINIC CENTER FOR TRANSLATIONAL SCIENCE ACTIVITIESUL1RR024150 · NCRR · MAYO CLINIC ROCHESTER · PI RIZZA, ROBERT A. · 2006 to 2011
$66.4M
Neurovascular Control and Blood Pressure Regulation in HumansR01HL083947 · NHLBI · MAYO CLINIC ROCHESTER · PI JOYNER, MICHAEL J · 2007 to 2016
$3.6M
NCRR NIH HHS 1 UL1 RR024150NCRR NIH HHS UL1 RR024150NHLBI NIH HHS HL083947NHLBI NIH HHS R01 HL083947
6 · The paper itself

Abstract

Sympathetic baroreflex sensitivity (BRS) is greater during decreasing compared to increasing diastolic blood pressure (DBP) in young men and women. In older men and women there is no difference in sympathetic BRS to increasing and decreasing DBP. We investigated whether the sensitivity of the central nervous system to increasing and decreasing DBP is dependent upon baseline muscle sympathetic nerve activity (MSNA). We hypothesised that the difference in sympathetic BRS between falling and rising segments of DBP would be positively related to baseline MSNA in 30 young men, 21 young women, 14 older men and 14 postmenopausal women. MSNA was measured using peroneal microneurography and BRS was measured using the spontaneous baroreflex threshold technique. On average, sympathetic BRS was greater during decreasing compared to increasing DBP in young men (P <0.05) and women (P <0.05). In older men and women, mean sympathetic BRS was similar in response to increasing and decreasing DBP. The difference (delta) between the falling and rising BRS correlated with baseline MSNA in young (r =0.58, P <0.05) and older men (r =0.66, P <0.05) and postmenopausal women (r =0.74, P <0.05). Thus, all men, and older women, with higher BRS to falling DBP had lower baseline MSNA. This relationship was not observed in young women (r =0.14, P >0.05). In summary, baseline MSNA plays a role in determining sympathetic BRS to falling and rising DBP in young and older men and postmenopausal women, but not in young women. This relationship is consistent with a decreased potential for sympathoexcitation in people with higher resting MSNA. Furthermore, the lack of relationship in young women suggests important contributions of sex hormones to differential responses of MSNA to falling and rising pressures.

Indexed as

AdultAge FactorsBaroreflexBlood PressureFemaleHemodynamicsHumansMaleMiddle AgedSex FactorsSympathetic Fibers, PostganglionicYoung Adult

Identifiers

PMID21540345
PMCPMC3145947
OpenAlexW1580330525

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.