Abstract:
:Acute or chronic inflammation comprises a highly prevalent type of orofacial pain and is mediated by the generation of endogenous agonists that activate numerous receptors expressed on terminals of trigeminal (TG) nociceptive afferent neurons. One such studied receptor is transient receptor potential vanilloid subtype 1 (TRPV1). TRPV1 is a ligand-gated cation channel that is expressed on a major subclass of nociceptors and is found in many orofacial tissues, including dental pulp. Antagonists to TRPV1 reveal an important role for this channel in mediating hypersensitivity in preclinical models of inflammatory or neuropathic pain. Recent studies have demonstrated that endogenous TRPV1 agonists are generated by oxidation of omega-6 polyunsaturated fatty acids, including both linoleic acid and arachidonic acid. A major mechanism triggering the release of oxidative linoleic acid metabolites (OLAMs) and oxidative arachidonic acid metabolites (OAAMs) is the action of oxidative enzymes. Oxidative enzymes such as cytochrome P450 isozymes are rapidly upregulated in TG neurons after orofacial inflammation and increase the capacity of TG neurons to generate OLAMs. Cytochrome P450 isozymes are also increased in immune cells in irreversibly inflamed human dental pulp, and extracts of this tissue have significantly increased capacity to generate OLAMs. Together, these studies point to a novel pain mechanism involving the enzymatic generation of endogenous OLAM and OAAM agonists of TRPV1. This finding provides a rationale for an entirely new class of analgesics by inhibition of oxidative enzyme activity.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Hargreaves KM,Ruparel Sdoi
10.1177/0022034516653751subject
Has Abstractpub_date
2016-09-01 00:00:00pages
1117-23issue
10eissn
0022-0345issn
1544-0591pii
0022034516653751journal_volume
95pub_type
杂志文章,评审abstract::Caries of the permanent first molars of 5-year-old children was found to be associated with caries of their diciduous teeth. The sample consisted of 220 children whose permanent first molars had erupted. They were selected out of 965 children who were a representative sample of children attending compulsory kindergart...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345760550062001
更新日期:1976-11-01 00:00:00
abstract::Deciduous teeth were collected from children who received professional prophylaxis with an acidulated phosphate-fluoride (APF) or placebo paste and were analyzed to determine fluoride uptake. Enamel fluoride level was increased by the APF paste approximately 300 ppm at a depth of 2.5 micrometers during the first month...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345760550064901
更新日期:1976-11-01 00:00:00
abstract::A frameshift mutation recently identified within the paired domain of the transcription factor, PAX9, has been linked to a unique form of oligodontia in a single, multigenerational family (Stockton et al., 2000). We now describe the phenotypic and segregation analyses of this remarkable kindred, the initial approach t...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345000790070701
更新日期:2000-07-01 00:00:00
abstract::Apoptosis plays important roles in various stages of organogenesis. In this study, we hypothesized that apoptosis would play an important role in tooth morphogenesis. We examined the role of apoptosis in early tooth development by using a caspase inhibitor, z-VAD-fmk, concomitant with in vitro organ culture and tooth ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910608500610
更新日期:2006-06-01 00:00:00
abstract::Minimal invasive approaches to managing caries, such as partial caries removal techniques, are showing increasing evidence of improved outcomes over the conventional complete caries removal. There is also increasing interest in techniques where no caries is removed. We present the 1-yr results of clinical efficacy for...
journal_title:Journal of dental research
pub_type: 杂志文章,随机对照试验
doi:10.1177/0022034514550717
更新日期:2014-11-01 00:00:00
abstract:UNLABELLED:The aim of this observational study was to investigate the features of the chewing activity and the variability of the human chewing pace, as assessed in the natural environment. It was hypothesized that the chewing pace is relatively constant within individuals across different days but is variable across i...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034511416669
更新日期:2011-10-01 00:00:00
abstract::Experiments were performed to determine the role of the immune response in rat periodontal disease. Germ-free rats were fed defined antigen-free liquid diets or a diet containing ovalbumin(OVA) as a prototype antigen. The OVA-fed rats demonstrated increased gingival lymphocytes (mainly T at early times), OVA-sensitize...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345840630031801
更新日期:1984-03-01 00:00:00
abstract::The anticaries effect of professional fluoride (F) application has been attributed to calcium-fluoride-like deposits (CaF(2)) formed on enamel, but this has not been clearly demonstrated. We hypothesized that CaF(2) formed on plaque-free enamel by F application would reduce enamel demineralization due to the increase ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910808701105
更新日期:2008-11-01 00:00:00
abstract::The type of attachment that is used in oral rehabilitation by means of implant-retained mandibular overdentures may influence the retention and the stability of the denture. In this study, we examined the hypothesis that a better retention and stability of the denture improve the oral function. Eighteen edentulous sub...
journal_title:Journal of dental research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/154405910208100305
更新日期:2002-03-01 00:00:00
abstract::Adenoviral vectors effectively transfer genes to rat salivary glands. However, potent immune responses limit their use in vivo. Mice offer more opportunities than rats for the study of these immune processes. We first established conditions for infection of mouse salivary glands, with an adenoviral vector. The effects...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345000790020201
更新日期:2000-02-01 00:00:00
abstract::Fibroblast cultures derived from uninjured and reparative rabbit buccal mucosa were compared in terms of extracellular glycosaminoglycan (GAG) content and cellular response to interleukin-1 (IL-1). Under identical growth conditions, proliferation of both cell lines was the same. Both lines incorporated [3H]-glucosamin...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345890680010801
更新日期:1989-01-01 00:00:00
abstract::The study of biofilm structure and function mandates the use of model systems for which a host of environmental variables can be rigorously controlled. We describe a model of supragingival plaque containing Actinomyces naeslundii, Veillonella dispar, Fusobacterium nucleatum, Streptococcus sobrinus, and Streptococcus o...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345010800011201
更新日期:2001-01-01 00:00:00
abstract::Incubation of saliva supernatant after three hours at 37 C revealed that salivary anionic proteins were susceptible to enzymatic attack by salivary enzymes not removable by centrifugation at 10,000 g. In the presence of washed suspensions of S mutans or S sanguis additional changes in electrophoretic behavior of anion...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:
更新日期:1975-03-01 00:00:00
abstract::The sensitizing potential of three periodontal dressing materials was evaluated by the guinea pig maximization test. The results indicated a difference in the sensitization rate of the three materials. ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345780570110801
更新日期:1978-11-01 00:00:00
abstract::In 1992 and 1997, all US and Canadian dental schools were surveyed by mail regarding the preferred initial radiographic examination prescribed for non-emergency, comprehensive-care patients (dentulous adults, edentulous adults, and children). In both survey years, a minority of US and Canadian dental schools reported ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345000790071701
更新日期:2000-07-01 00:00:00
abstract::In this study, we analyzed the influence of prosthetic abutment height on marginal bone loss (MBL) around implants in the posterior maxilla. In this retrospective cohort study, the radiographically determined MBL was related to the height of the abutments of internal conical connection implants at 6 and 18 months post...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034513519800
更新日期:2014-07-01 00:00:00
abstract::To understand the role of betel quid (BQ) in the pathogenesis of oral submucous fibrosis (OSF) and oral cancer, we used DNA damage, cytotoxicity, and cell proliferation assays to study the pathobiological effects of aqueous extracts of three BQ constituents [betel nut (Areca catechu, BN), inflorescence of Piper betle ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345940730050501
更新日期:1994-05-01 00:00:00
abstract::Medication-related osteonecrosis of the jaw (MRONJ), although initially believed to be exclusively associated with bisphosphonates, has been implicated in recent reports with additional drugs, especially the bone antiresorptive denosumab. The pathophysiology has not been fully elucidated, and no causal association bet...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/0022034515572021
更新日期:2015-04-01 00:00:00
abstract::Samples of dental plaque obtained from the interproximal tooth surfaces of seven young men showed considerable variation in the prevalence and anatomic site distribution of the potentially cariogenic microorganism S mutans. Multiple application of 10% SnF2 topical solution and saline solution delivered to interproxima...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345770560010301
更新日期:1977-01-01 00:00:00
abstract::Previous studies show that both activin and Bmp4 act as crucial mesenchymal odontogenic signals during early tooth development. Remarkably, mice lacking activin-βA ( Inhba-/-) and mice with neural crest-specific inactivation of Bmp4 ( Bmp4ncko/ncko) both exhibit bud-stage developmental arrest of the mandibular molar t...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034517713710
更新日期:2017-09-01 00:00:00
abstract::This systematic review and meta-analysis assessed the efficacy of lasers in reducing dentin hypersensitivity (DH) as compared with placebo or no treatment. Seven electronic databases and a manual search resulted in 2,538 unique publications. After selection, 13 studies were included in the meta-analysis. A CONSORT-bas...
journal_title:Journal of dental research
pub_type: 杂志文章,meta分析,评审
doi:10.1177/0022034513487212
更新日期:2013-06-01 00:00:00
abstract::Gingival overgrowth tissues have thickened connective tissue stroma, sometimes accompanied by the increased presence of collagen fibers, thickened epithelia, and elongated rete pegs. We have previously shown that expression of CCN2, also known as connective tissue growth factor (CTGF), correlates positively with the d...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034511404703
更新日期:2011-07-01 00:00:00
abstract::Although certain bacterial species appear to be risk factors for pain due to odontogenic infections, comparatively little is known about the potential mechanisms mediating this effect. In this study, we tested the hypothesis that trigeminal nociceptive neurons express the TLR4 or CD14 receptors, thus enabling sensory ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910608500108
更新日期:2006-01-01 00:00:00
abstract::The dental follicle (DF) differentiates into the periodontal ligament. In addition, it may be the precursor of other cells of the periodontium, including osteoblasts and cementoblasts. We hypothesized that stem cells may be present in the DF and be capable of differentiating into cells of the periodontium. Stem cells ...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/154405910808700801
更新日期:2008-08-01 00:00:00
abstract::Alendronate (ALN) is an antiresorptive agent widely used for the treatment of osteoporosis. Its suppressive effect on osteoclasts has been extensively studied. However, the effect of ALN on bone formation is not as clear as its effect on resorption. The objective was to determine the effect of short-term ALN on bone f...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034515592867
更新日期:2015-09-01 00:00:00
abstract::Stem cells from exfoliated deciduous teeth (SHED) possess multipotent differentiation and immunomodulatory properties. They have been used for orofacial bone regeneration and autoimmune disease treatment. In this study, we show that acetylsalicylic acid (ASA) treatment is able to significantly improve SHED-mediated os...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034514557672
更新日期:2015-01-01 00:00:00
abstract::Periodontitis is a chronic infectious disease driven by dysbiosis, an imbalance between commensal bacteria and the host organism. Periodontitis is a leading cause of tooth loss in adults and occurs in about 50% of the US population. In addition to the clinical challenges associated with treating periodontitis, the pro...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/0022034515611876
更新日期:2016-02-01 00:00:00
abstract::Hereditary diseases affecting the skeleton are heterogeneous in etiology and severity. Though many of these conditions are individually rare, the total number of people affected is great. These disorders often include dental-oral-craniofacial (DOC) manifestations, but the combination of the rarity and lack of in-depth...
journal_title:Journal of dental research
pub_type: 杂志文章,评审
doi:10.1177/0022034514529150
更新日期:2014-07-01 00:00:00
abstract::Titanium-polymethacrylate composite was prepared as an x-ray-opaque filler for composite core materials. The base monomers of the composite were 2,2-bis [4-(3-methacryloyloxy-2-hydroxypropoxy) phenyl] propane (Bis-GMA) and triethyleneglycol dimethacrylate (TEGDMA). Pure titanium powder was used as a radiopaque element...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345920710010201
更新日期:1992-01-01 00:00:00
abstract::Bilateral resections of the superficial masseter, posterior temporal, and anterior digastric muscles of rats were done to determine their effects on mandibular growth. The macroscopic findings support the functional matrix theory of mandibular growth. The analysis of body weight and the statistical two-way analysis of...
journal_title:Journal of dental research
pub_type: 杂志文章
doi:10.1177/00220345760550052301
更新日期:1976-09-01 00:00:00