Evidence map›Paper›PMID 19506724›Full record

ArticleCurrent neuropharmacology2008

Functional neuroanatomy of the noradrenergic locus coeruleus: its roles in the regulation of arousal and autonomic function part II: physiological and pharmacological manipulations and pathological alterations of locus coeruleus activity in humans.

E R Samuels, E Szabadi

Open access · bronzeAbstract read
In one paragraph

Article in Current neuropharmacology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 219 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
219citing papers in PubMed, 2 pooled it
2.8field-weighted citation impact, top 9% 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

219 citing papers in PubMed, 2 syntheses or guidelines pooled it, 459 citations in OpenAlex.

  1. A molecular systems architecture of asthma.Frontiers in immunology · 2026
    Pooled it
  2. Pooled it
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  7. Article
  8. Modulation of the noradrenergic system using transcranial ultrasonic stimulation targeted to the brainstem locus coeruleus in awake mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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  15. Locus coeruleus degeneration is associated with orthostatic hypotension in Parkinson's disease and multiple system atrophy.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  16. The Interplay of Bottom-Up Arousal and Attentional Capture during Auditory Scene Analysis: Evidence from Ocular Dynamics.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  17. The Contribution of the Locus Ceruleus-Norepinephrine System to the Coupling between Pupil-Linked Arousal and Cortical State.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  18. Article
  19. The role of αAmerican journal of physiology. Heart and circulatory physiology · 2025
    Article
  20. Review

159 more citing papers are in PubMed but not listed here.

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

2 authors at 2 institutions in 1 country.

E R SamuelsPsychopharmacology Section, University of Nottingham, Division of Psychiatry, Queen's Medical Centre, Nottingham NG7 2UH, UK.
E Szabadi
Queen's Medical Centre · GBUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The locus coeruleus (LC), the major noradrenergic nucleus of the brain, gives rise to fibres innervating most structures of the neuraxis. Recent advances in neuroscience have helped to unravel the neuronal circuitry controlling a number of physiological functions in which the LC plays a central role. Two such functions are the regulation of arousal and autonomic activity, which are inseparably linked largely via the involvement of the LC. Alterations in LC activity due to physiological or pharmacological manipulations or pathological processes can lead to distinct patterns of change in arousal and autonomic function. Physiological manipulations considered here include the presentation of noxious or anxiety-provoking stimuli and extremes in ambient temperature. The modification of LC-controlled functions by drug administration is discussed in detail, including drugs which directly modify the activity of LC neurones (e.g., via autoreceptors, storage, reuptake) or have an indirect effect through modulating excitatory or inhibitory inputs. The early vulnerability of the LC to the ageing process and to neurodegenerative disease (Parkinson's and Alzheimer's diseases) is of considerable clinical significance. In general, physiological manipulations and the administration of stimulant drugs, alpha(2)-adrenoceptor antagonists and noradrenaline uptake inhibitors increase LC activity and thus cause heightened arousal and activation of the sympathetic nervous system. In contrast, the administration of sedative drugs, including alpha(2)-adrenoceptor agonists, and pathological changes in LC function in neurodegenerative disorders and ageing reduce LC activity and result in sedation and activation of the parasympathetic nervous system.

Indexed as

aging.Alzheimer’s diseaseanxietyarousalautonomic functionLocus coeruleusnoxious stimuliParkinson’s disease

Identifiers

PMID19506724
PMCPMC2687931
OpenAlexW2062503636

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.