Non-Cochrane · prognostic · PM42056954

Neural biomarkers in pulpitis and their associations with inflammation and pain perception: a systematic review and meta-analysis.

Cen Rong, Dai Yuguo, Li Kar Yan, et al. · BMC oral health · 2026 · PubMed · doi:10.1186/s12903-026-08438-9

Findings

Population Permanent teeth with symptomatic irreversible pulpitis (SIP)

2 findings

Symptomatic irreversible pulpitis (inflamed pulp)Healthy pulp (normal pulp, NP)Calcitonin gene-related peptide (CGRP) expression level in dental pulpSMD 2.973 [0.553, 5.393]
Low
Downgraded: imprecision
5 studies · 188 participants
Symptomatic irreversible pulpitis (inflamed pulp)Healthy pulp (normal pulp, NP)Substance P (SP) expression level in dental pulpSMD 3.108 [0.008, 6.208]
Very low
Downgraded: imprecision
4 studies · 127 participants

Included primary studies 64

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
De Arruda 2023
Relaxation of smooth muscle following contraction elicited by sympathetic nerve stimulation in vivo.
PMID:202357
19773 other reviewsnot statednot extracted yet
Awawdeh 2002
Quantitative analysis of substance P, neurokinin A and calcitonin gene-related peptide in pulp tissue from painful and healthy human teeth.
PMID:11853236
20021 other reviewSubstance P (SP) expression level in dental pulp; Calcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Bowles 2003
Tissue levels of immunoreactive substance P are increased in patients with irreversible pulpitis.
PMID:12701777
20031 other reviewSubstance P (SP) expression level in dental pulpnot extracted yet
Castillo-Silva 2019
Dynamics of the changes in the cerebral amounts of cyclic AMP and some prostaglandins during cobalt-60 gamma-radiation-induced brain edema.
PMID:201954
19771 other reviewCalcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Castillo-Silva 2019
Expression of calcitonin gene-related peptide and pulp sensitivity tests in irreversible pulpitis.
PMID:31531564
20191 other reviewCalcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Caviedes-Bucheli 2004
Expression of calcitonin gene-related peptide (CGRP) in irreversible acute pulpitis.
PMID:15085045
20041 other reviewCalcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Caviedes-Bucheli 2005
Calcitonin gene-related peptide receptor expression in healthy and inflamed human pulp tissue.
PMID:16164685
20051 other reviewnot statednot extracted yet
Caviedes-Bucheli 2006
Quantification of neuropeptides (calcitonin gene-related peptide, substance P, neurokinin A, neuropeptide Y and vasoactive intestinal…
PMID:16640639
20061 other reviewSubstance P (SP) expression level in dental pulp; Calcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Caviedes-Bucheli 2007
Macular influences on somatosensory transmission through the spinoreticulocerebellar pathway.
PMID:200740
19771 other reviewnot statednot extracted yet
Caviedes-Bucheli 2008
Calcitonin gene-related peptide receptor expression in alternatively activated monocytes/macrophages during irreversible pulpitis.
PMID:18634925
20081 other reviewnot statednot extracted yet
Mehboob 2021
False negative bone scans in neuroblastoma metastatic to the ends of long bones.
PMID:202156
19781 other reviewnot statednot extracted yet
Morgan 2009
The pathogenesis of endocrine exophthalmos: a short review.
PMID:200947
19771 other reviewnot statednot extracted yet
Sattari 2010
Substance P and CGRP expression in dental pulps with irreversible pulpitis.
PMID:20666750
20101 other reviewSubstance P (SP) expression level in dental pulp; Calcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Suwanchai 2012
A glycine to serine substitution identifies the CYP 3 locus as the structural gene of iso 2 cytochrome c in Saccharomyces cerevisiae.
PMID:201250
19771 other reviewnot statednot extracted yet
Yang 2024
The crystal structure of complexes between horse liver alcohol dehydrogenase and the coenzyme analogues 3-iodopyridine-adenine…
PMID:202459
19771 other reviewnot statednot extracted yet
Alvarado 2007
TRPM8 Axonal expression is decreased in painful human teeth with irreversible pulpitis and cold hyperalgesia.
PMID:17889683
2007this review onlynot statednot extracted yet
Alvarado 2007
Synaptic excitation and inhibition resulting from direct action of acetylcholine on two types of chemoreceptors on individual amphibian…
PMID:200739
1977this review onlynot statednot extracted yet
Awawdeh 2002
Enzyme-bound early product of purified poly(ADP-ribose) polymerase.
PMID:200230
1977this review onlySubstance P (SP) expression level in dental pulp; Calcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Bakri 2018
Excretion of feline leukaemia virus by naturally infected pet cats.
PMID:201852
1977this review onlynot statednot extracted yet
Bakri 2018
Transient receptor potential vanilloid 4 (TRPV4) expression on the nerve fibers of human dental pulp is upregulated under inflammatory…
PMID:29499561
2018this review onlynot statednot extracted yet
Beneng 2010
Methanethiol inhibition of mitochondrial respiration.
PMID:201048
1977this review onlynot statednot extracted yet
Beneng 2010
Sodium channel Na v 1.7 immunoreactivity in painful human dental pulp and burning mouth syndrome.
PMID:20529324
2010this review onlynot statednot extracted yet
Bowles 2003
An attenuated mink enteritis virus and its use in a trivalent vaccine: studies on safety and antigenicity.
PMID:200331
1977this review onlySubstance P (SP) expression level in dental pulpnot extracted yet
Caviedes-Bucheli 2004
Effect of exercise and of prolonged oral administration of propranolol on haemodynamic variables, plasma renin concentration, plasma…
PMID:200433
1977this review onlyCalcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Caviedes-Bucheli 2005
[Modification of the kinetics of adipose tissue lipoprotein lipase by heparin (author's transl)].
PMID:200534
1977this review onlynot statednot extracted yet
Caviedes-Bucheli 2006
The development and degeneration of Purkinje cells in pcd mutant mice.
PMID:200636
1978this review onlySubstance P (SP) expression level in dental pulp; Calcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Caviedes-Bucheli 2007
Substance P receptor expression in healthy and inflamed human pulp tissue.
PMID:17229115
2007this review onlynot statednot extracted yet
Caviedes-Bucheli 2008
Synchronised transmembrane insertion and glycosylation of a nascent membrane protein.
PMID:200844
1977this review onlynot statednot extracted yet
da Silva 2008
Action of nitric oxide on healthy and inflamed human dental pulp tissue.
PMID:18337111
2008this review onlynot statednot extracted yet
da Silva 2008
Human virus-infected target cells lacking HLA antigens resist specific T-lymphocyte cytolysis.
PMID:200845
1977this review onlynot statednot extracted yet
de Arruda 2023
Evaluation of the expression of nerve fiber markers in healthy and inflamed dental pulp.
PMID:36790260
2023this review onlynot statednot extracted yet
Dincer 2020
Lethal intestinal virus of infant mice is mouse hepatitis virus.
PMID:202055
1977this review onlynot statednot extracted yet
Dincer 2020
Comparison of Neurokinin A, Substance P, Interleukin 8, and Matrix Metalloproteinase-8 Changes in Pulp tissue and Gingival Crevicular…
PMID:32702349
2020this review onlynot statednot extracted yet
Dong 2013
[Effect of NADH and several Krebs cycle substrates on the endogenous metabolism of Pseudomonas fluorescens (type S)].
PMID:201351
1977this review onlynot statednot extracted yet
Dong 2013
Increased expression of EphA7 in inflamed human dental pulp.
PMID:23321235
2013this review onlynot statednot extracted yet
Dourou 2006
Comparative evaluation of neural tissue antigens--neurofilament protein (NF), peripherin (PRP), S100B protein (S100B), neuron-specific…
PMID:16919707
2006this review onlynot statednot extracted yet
Dourou 2006
The effects of formocresol on rat sponge implant tissue: a biochemical study.
PMID:200637
1977this review onlynot statednot extracted yet
Israr 2023
Kinin, kininogen and kininase levels during acute Babesia bovis (= B. argentina) infection of cattle.
PMID:202358
1977this review onlynot statednot extracted yet
Israr 2023
Investigating In Situ Expression of Neurotrophic Factors and Partner Proteins in Irreversible Pulpitis.
PMID:37660765
2023this review onlynot statednot extracted yet
Mehboob 2021
Enhanced Neurokinin-1 Receptor Expression Is Associated with Human Dental Pulp Inflammation and Pain Severity.
PMID:34041298
2021this review onlynot statednot extracted yet
Morgan 2005
Vanilloid receptor 1 expression in human tooth pulp in relation to caries and pain.
PMID:16106719
2005this review onlynot statednot extracted yet
Morgan 2005
Insulin release from collagenase-isolated islets of rat pancreas in the presence of cyclic AMP and somatostatin.
PMID:200535
1977this review onlynot statednot extracted yet
Morgan 2009
Changes in proteinase-activated receptor 2 expression in the human tooth pulp in relation to caries and pain.
PMID:19639106
2009this review onlynot statednot extracted yet
Renton 2003
Capsaicin receptor VR1 and ATP purinoceptor P2X3 in painful and nonpainful human tooth pulp.
PMID:14520770
2003this review onlynot statednot extracted yet
Renton 2003
Chemotherapy of malignant fibrous histiocytoma: a Southwest Oncology Group report.
PMID:200332
1977this review onlynot statednot extracted yet
Rodd & Boissonade 2000
[Activity of the enzymes of glucose-6-phosphate metabolism in the tissues of hepatomas with different growth rates].
PMID:200028
1977this review onlynot statednot extracted yet
Rodd & Boissonade 2001
Clinical cyclic nucleotide research.
PMID:200129
1977this review onlynot statednot extracted yet
Rodd 2000
Substance P expression in human tooth pulp in relation to caries and pain experience.
PMID:11153921
2000this review onlynot statednot extracted yet
Rodd 2001
Innervation of human tooth pulp in relation to caries and dentition type.
PMID:11269734
2001this review onlynot statednot extracted yet
Rowland 2007
TRPM2 immunoreactivity is increased in fibroblasts, but not nerves, of symptomatic human dental pulp.
PMID:17320705
2007this review onlynot statednot extracted yet
Rowland 2007
[Norepinephrine interference in adrenal hormone balance related to blood calcium effects of PTH (author's transl)].
PMID:200741
1977this review onlynot statednot extracted yet
Sattari 2010
Induction of cleft palate in hamster fetus following prenatal treatment with ACTH.
PMID:201049
1977this review onlySubstance P (SP) expression level in dental pulp; Calcitonin gene-related peptide (CGRP) expression level in dental pulpnot extracted yet
Steiner 2018
Recent excitement in the DNA replication problem.
PMID:201853
1977this review onlynot statednot extracted yet
Steiner 2018
Secretoneurin and PE-11 immunoreactivity in the human dental pulp.
PMID:29132068
2018this review onlynot statednot extracted yet
Suwanchai 2012
NaV 1.8, but not NaV 1.9, is upregulated in the inflamed dental pulp tissue of human primary teeth.
PMID:22085016
2012this review onlynot statednot extracted yet
Wadachi & Hargreaves 2006
A laboratory evaluation of the effect of two surface-wetting treatments on soft denture liners.
PMID:200638
1977this review onlynot statednot extracted yet
Wadachi 2006
Trigeminal nociceptors express TLR-4 and CD14: a mechanism for pain due to infection.
PMID:16373680
2006this review onlynot statednot extracted yet
Warren 2008
Quantification of neural protein in extirpated tooth pulp.
PMID:18155483
2008this review onlynot statednot extracted yet
Warren 2008
Is alpha MSH a trophic hormone to adrenal function in the foetus?
PMID:200846
1977this review onlynot statednot extracted yet
Wells 2007a
Expression of Nav1.9 channels in human dental pulp and trigeminal ganglion.
PMID:17889684
2007this review onlynot statednot extracted yet
Wells 2007a
[Placental and fetal growth in the rabbit: influence and mechanism of action of ovarian hormones (author's transl)].
PMID:200742
1977this review onlynot statednot extracted yet
Wells 2007b
Kv1.4 subunit expression is decreased in neurons of painful human pulp.
PMID:17804321
2007this review onlynot statednot extracted yet
Wells 2007b
Problem solving revisited.
PMID:200743
1977this review onlynot statednot extracted yet
Yang 2024
Expression patterns of mechanosensitive ion channel PIEZOs in irreversible pulpitis.
PMID:38627713
2024this review onlynot statednot extracted yet

Overlap with other reviews

Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.

Review question

ElementPlanned (methods)Found (results)
PopulationPermanent teeth diagnosed with or exhibiting symptoms of pulpitis or pulp exposurePermanent teeth with pulpitis (n=32 case-control studies)
InterventionMolecular biomarkers of neural changes (nerve growth factors, ion channels, neurotransmitters, neuropeptides, receptors) measured in dental pulp or pulpal blood38 neural biomarkers investigated; SP (n=4 in meta-analysis), CGRP (n=5 in meta-analysis)
ComparisonHealthy pulp of permanent teethNormal pulp (NP)
OutcomesDifference in biomarker expression between inflamed and healthy pulp; association with severity of pulpal inflammation and pain perceptionBiomarker expression in symptomatic irreversible pulpitis vs normal pulp; correlation with pain (NK-1R, Nav1.8, PIEZO2, 1 study each)
Study designsHuman observational comparative studies or clinical trials; English32 case-control studies
TimingNot specifiedNot specified