Abstract：
OBJECTIVE:The literature suggests that females have less adverse effects to infection than males, due to the protective effects of oestrogen. The purpose of our study is to compare the systemic effects of induced periapical lesions between groups of animals with various serum concentrations of oestrogen. METHODS:To induce periapical inflammation, two molar tooth pulps were exposed in ovariectomized (OVX) and normal female (F) and castrated (Cast-M) and normal male (M) Sprague-Dawley rats (Experimental group, E). Sham-operated control animals from each group were also studied (Control group, C). Twenty-eight days later, serum and maxillas were collected. Serum 17β-oestradiol, testosterone, MMP-9, IL-18, IL-6, TNF-α, and IL-1β concentrations were measured by ELISA. Maxillas were cleaned of residual tissue and digital radiographs were made to verify the presence of periapical lesions. Data were compared by factorial ANOVA, post hoc Tukey, and Pearson correlation tests. Groups were considered to be significantly different when p<0.05. RESULTS:The serum concentration of IL-18, TNF-α, IL-1-β, IL-6 and MMP-9 was greatest in OVX-E animals, compared to all other groups (p<0.001). F-E rats had significantly higher serum concentrations of these cytokines, compared to F-C. The fold difference in serum concentration of the biomarkers (between E and C groups) was significantly greater in females than males, even though males had higher baseline concentrations of all these biomarkers. CONCLUSION:When females are oestrogen-deficient, their systemic response to periapical lesions is significantly greater than males, suggesting that oestrogen is essential in protecting females from the effects of this type of inflammation.
journal_name
Arch Oral Bioljournal_title
Archives of oral biologyauthors
Zhang H,Bain JL,Caskey CP,Sandifer LC,Johnson RBdoi
10.1016/j.archoralbio.2010.09.008subject
Has Abstractpub_date
2011-02-01 00:00:00pages
168-76issue
2eissn
0003-9969issn
1879-1506pii
S0003-9969(10)00270-0journal_volume
56pub_type
杂志文章abstract：:The oral organism Corynebacterium matruchotii was investigated for the presence of lipoteichoic acid, as this common polyanionic macroamphiphilic component of Gram-positive bacteria has been implicated in phenomena related to calcium binding. Phenol-water extraction followed by a small-scale, hydrophobic-interaction c...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(95)00086-0
更新日期：1995-12-01 00:00:00
abstract：:Destrin, an actin-binding protein, is partly phosphorylated at Ser-2 (numbering on the matured form) in the resting rat parotid gland, and beta-adrenergic or cholinergic stimulation of this gland induces its dephosphorylation. In this study, we searched for the protein kinase involved in phosphorylation of destrin. We...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(03)00129-8
更新日期：2003-09-01 00:00:00
abstract：OBJECTIVE:This study was aimed to investigate the effects of microRNA-212-5p (miR-212-5p) and myeloid differentiation factor 88 (Myd88) in Porphyromonas gingivalis lipopolysaccharide (P. gingivalis LPS)-challenged human periodontal ligament cells (PDLCs). METHODS:The levels of miR-212-5p and Myd88 in PDLCs were determ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2020.104831
更新日期：2020-10-01 00:00:00
abstract：OBJECTIVE:The margin of a palatal cleft is a unique anatomical site since the palatal mucosa is continuous with the nasal or nasopharyngeal mucosa. The aim of this study was to compare the expression patterns of cytokeratins and basal membrane components of the mucosa in the area of the cleft. DESIGN:Biopsies from the...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2006.01.004
更新日期：2006-07-01 00:00:00
abstract：:This study sought to localize immunohistochemically Janus kinase (Jak) and Tyk isoforms and STAT-1 in association with events involved in early dentine and enamel formation in the rat molar. The Jaks and STATs (signal transducers and activators of transcription) are key signal-transduction pathway components in the cy...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(96)00048-9
更新日期：1996-10-01 00:00:00
abstract：OBJECTIVE:Root grooves are considered a risk factor for periodontal disease. The purpose of this study was to measure the length of the root of maxillary lateral incisors (MLI), as well as the width and depth of the concavities of their proximal surfaces, and also to determine the prevalence of palato-gingival grooves....
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2006.02.008
更新日期：2006-08-01 00:00:00
abstract：:Physiological evidence is presented for the existence of commissural fibres that cross the midsagittal plane in the medulla of the rat at the level of the trigeminal motor nucleus (Mo5). These fibres, which have their origin in the Mo5, terminated in the contralateral Mo5. Small inhibitory postsynaptic potentials were...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(93)90170-q
更新日期：1993-12-01 00:00:00
abstract：:Analysis of dental microwear may be used to detect species differences in diet and to secure information about occlusal relationships and biomechanics of the jaw. Microscratch-orientation data evaluated with reference to several hypotheses about functional, wear-related, sex and age influences on occlusal contacts ind...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(84)90007-4
更新日期：1984-01-01 00:00:00
abstract：:The acquired enamel pellicle formed by selective adsorption of proteins in whole saliva is a protective integument on the tooth surface. The purpose of the present study was to investigate the formation of human acquired enamel pellicle using an in vitro hydroxyapatite (HA) model and 3H-histatin 5 to allow accurate me...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2005.06.003
更新日期：2006-02-01 00:00:00
abstract：:Chronic graft-versus-host disease (cGVHD) is a complex clinical entity with various target organs, including the salivary glands. Oral pilocarpine (Salagen(R)), 30 mg/day, can ameliorate cGVHD-induced xerostomia and improve the flow rate from the major salivary glands. The purpose here was to evaluate the effect of th...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(01)00035-8
更新日期：2001-08-01 00:00:00
abstract：OBJECTIVES:Knowledge of the various possible morphologies and courses of the inferior alveolar nerve and artery is important for successful and safe surgical procedures in the mandibular region. The purpose of this study was to verify the histologic features and fascicular arrangement of the inferior alveolar nerve and...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2015.09.007
更新日期：2015-12-01 00:00:00
abstract：:Eight adult, Finnish 47,XYY males were compared with population male and female controls and, in addition, three of them were compared with first-degree male relatives. Linear and angular measurements were made from standardized lateral cephalograms of patients and normal population controls from the "Kvantti" study s...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(97)00047-2
更新日期：1997-08-01 00:00:00
abstract：:After an initial demineralisation, an intensive fluoridation is capable of inhibiting the erosive mineral loss in dentine completely, which might be related to the presence of the exposed organic dentine matrix. Aim of the present study was, therefore, to evaluate whether fluoride is also effective when the organic ma...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2004.05.010
更新日期：2004-11-01 00:00:00
abstract：:An immunofluorescence study of the expression of keratin 14 (K14) during the formation of filiform papillae was performed and the progress of keratinization of the epithelium of the rat tongue was monitored on semi-ultrathin sections by laser-scanning microscopy. Differential interference contrast (DIC) images were al...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(03)00118-3
更新日期：2003-08-01 00:00:00
abstract：OBJECTIVE:Streptococcus mutans is a principal bacterium that forms pathogenic biofilm involved in the development of dental caries. S. mutans possesses a quorum sensing system (QS) stimulated by competence stimulating peptide (CSP), which is associated with bacteriocin production, genetic competency and biofilm formati...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2019.04.010
更新日期：2019-06-01 00:00:00
abstract：:A task-force to resolve 26 pending forensic caseworks was carried out. We tested four different protocols to extract DNA from molar and pre-molar teeth from 26 cadavers with post-mortem intervals from 2 months to 12 years. We compared the amount of DNA and DNA profiles with the time elapsed between death and laborator...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2012.08.014
更新日期：2012-11-01 00:00:00
abstract：:The abrasiveness of food is a key determinant in the rate of physiological attrition (dental wear) in humans. With increasing food processing through time, the rate of physiological dental wear in human teeth has decreased markedly. Many consider such wear to be beneficial to oral health and that insufficient wear may...
journal_title：Archives of oral biology
pub_type： 历史文章,杂志文章
doi：10.1016/s0003-9969(99)00095-3
更新日期：1999-11-01 00:00:00
abstract：:Mandibular first-molar tooth germs were dissected from 16-day-embryo and new-born CD1 mice. By incubation in collagenase they were separated into enamel organ, papilla and follicle. Dental pulp was obtained from mandibular first molars of 3-, 7- and 10-day-old mice. Various combinations of epithelial and mesenchymal t...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(87)90022-7
更新日期：1987-01-01 00:00:00
abstract：OBJECTIVE:To clarify the fluoride/mineral kinetics in an oral biofilm following concurrent application of fluoride and other mineral ions released from experimental toothpaste containing S-PRG filler using depth-specific analysis. STUDY DESIGN:Twenty subjects wore in situ plaque-generating devices, comprised of a pair...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2020.104777
更新日期：2020-09-01 00:00:00
abstract：OBJECTIVE:To test the hypothesis that experimental occlusal interferences increase the nerve growth factor (NGF) levels in periodontal tissues and cause an up-regulation of preprotachykinin-A (PPTA) mRNA. BACKGROUND:NGF is related to hyperalgesia and inflammation. PPTA mRNA, a primer of substance P, is a possible fact...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2010.08.007
更新日期：2010-12-01 00:00:00
abstract：:Ruthenium hexammine trichloride (RHT) used as a probe to visualize anion groups in the predentine and dentine of rat incisors, showed a complex distribution pattern including: intercellular proteoglycans (Pg), detected in the predentine as granules 10-15 nm in diameter and as filaments. Non-aggregating Pg was observed...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(86)90051-8
更新日期：1986-01-01 00:00:00
abstract：:Prostaglandins are involved in force-induced orthodontic tooth movement. Bradykinin (BK) and thrombin are known to cause a significant time- and concentration-dependent burst of prostanoid biosynthesis in cultured human periodontal-ligament (PDL) cells. The aim now was to investigate interactive effects between interl...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(98)00010-7
更新日期：1998-04-01 00:00:00
abstract：OBJECTIVE:The biofilm of Streptococcus mutans is associated with induction of dental caries. Also, they produce glucan as an extracellular polysaccharide through glucosyltransferases and help the formation of cariogenic biofilm. β-caryophyllene has been used for therapeutic agent in traditional medicine and has antimic...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2018.01.009
更新日期：2018-04-01 00:00:00
abstract：OBJECTIVE:This in vitro study was undertaken to assess the effects of Galla chinensis extract on inhibition of enamel caries-like demineralization and to elucidate the role of the organic matrix of enamel in this process. DESIGN:Either regular or enamel disposed of its organic matrix both of bovine origin were exposed...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2009.06.007
更新日期：2009-09-01 00:00:00
abstract：:Specific, well-characterized antisera to the extracellular matrix glycoprotein tenascin were used. Immunoreactivity was detected in association with dentinal tubules; it was particularly prominent in the tooth crown, and was stronger within matrix than within predentine. In contrast, there was no anti-fibronectin stai...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(91)90080-e
更新日期：1991-01-01 00:00:00
abstract：:Streptococcus mutans GS5, Lactobacillus casei DSM20011 and Actinomyces viscosus T14 produce artificial caries in the roots of extracted teeth. Roots were coated with wax leaving an 8 mm2 window exposed on the buccal surfaces, and then incubated for 8 days in the presence of the test organism, the synthetic medium bein...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(88)90031-3
更新日期：1988-01-01 00:00:00
abstract：:The discharge of albumin, IgG and fibrinogen in dentinal fluid released from freshly exposed dentine was determined by enzyme-linked immunosorbent assay. Data were compared with the relative concentrations of these proteins in the interstitial fluid of the pulp. The sampling procedure involved retrieval of phosphate-b...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(94)90043-4
更新日期：1994-03-01 00:00:00
abstract：OBJECTIVES:Previous studies have suggested that the vasculature in the dental pulp and periodontal tissues plays an important role in producing the eruptive force in continuously erupting incisors. The aim of the present study was to investigate the effects of local injections of vasoactive drugs on regional blood flow...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2005.11.001
更新日期：2006-06-01 00:00:00
abstract：:The response of maxillary tissues to mucoperiosteal manipulation at different ages was studied microscopically early after operation and at maturity. Thirty-two Beagles were divided into three experimental groups, a sham-operated group and a control group. At the age of 6, 16 or 25 weeks in the experimental groups an ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(91)90033-q
更新日期：1991-01-01 00:00:00
abstract：OBJECTIVE:Several local factors can affect the wound-healing process, delaying its progression and postponing tissue homeostasis. It is known that local inflammation is related to wound healing; however, the maintenance of the inflammatory reaction can impair the proliferation and migration of oral mucosal cells. The a...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2015.04.010
更新日期：2015-08-01 00:00:00
