Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Serum levels of IgM, IgG and IgG-antibody subclasses directed against cell envelopes, lipopolysaccharides and cytoplasmic fractions from Capnocytophaga sputigena, C. gingivalis and C. ochracea were examined in age-, race- and sex-matched periodontally healthy (n = 25) subjects and subjects with adult periodontitis (n = 25). The envelopes and cytoplasmic fractions were obtained by ballistic disintegration of the cells and ultracentrifugation. Cell envelopes were treated with DNase, RNase and lysozyme. Lipopolysaccharides were obtained by hot phenol-water extraction and treated with DNase and RNase. The relative levels of the antibodies in response to the cell fractions were measured by the streptavidinbiotin micro enzyme-linked immunosorbent assay. Both groups showed IgM and IgG antibodies to each fraction of the three Capnocytophaga species, but the frequency of positive IgG subclass responses varied. The IgG4 responses were lower than the other subclasses. There were no significant differences between the IgM antibody levels of the two groups. However, the adult periodontitis group had significantly lower IgG antibody titres to the cell envelopes and cytoplasmic fractions of C. gingivalis and C. ochracea, and lipopolysaccharide of C. gingivalis. These results were reflected in the depressed levels of IgG1 and/or IgG2 to these cellular fractions from the same bacterial species. The adult periodontitis group also showed a lower level of IgG1 to the cytoplasmic fractions of C. sputigena without any depression in the total IgG antibody level. There were no significant differences between the groups in IgG3 and IgG4 antibody levels to any of the cellular fractions.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Serum antibody responses in human periodontitis to cellular components of Capnocytophaga. 141 21

This investigation focuses on the changes in the concentrations of cyclooxygenase (CO) products present within the crevicular fluid in naturally-progressing periodontitis in the beagle and the effects of various non-steroidal anti-inflammatory drugs (NSAIDs) on these metabolite levels and disease progression. Six groups of 5-6 beagles with periodontitis were followed for 6 months to determine the pretreatment rate of radiographic bone loss. At baseline, groups of animals were placed on soft chow to promote disease progression. Groups were treated with either placebo, three different formulations of systemic ibuprofen, systemic naproxen or topical flurbiprofen. During the 6-month treatment phase, crevicular fluid (CF) samples and radiographs were taken at regular intervals. Radioimmunoassay of CF samples from untreated animals demonstrated a steady increase in prostaglandin E2 (PGE2) over baseline values. At 1 month, CF-PGE2 levels increased 2-fold over baseline and, by 6 months, had reached a 5- to 6-fold elevation. Crevicular fluid thromboxane B2 (CF-TxB2) levels rapidly reached a 4- to 5-fold peak over baseline at 1 month and subsequently dropped to a 2-fold elevation for the remainder of the study. The rate of bone loss (BLOSS) in untreated animals increased 38% during the 6-month period, as compared to baseline pretreatment BLOSS rates. Overall, there was a significant depression in the CF levels of both PGE2 and TxB2 in all NSAID-treated groups. All NSAID treatments significantly retarded BLOSS, ranging from 21.0-36.9% of the control BLOSS rate. Furthermore, CO activation represents a major regulatory step in bone destruction and may thereby serve as an important site for pharmacological modulation.
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PMID:Effects of NSAIDs on beagle crevicular cyclooxygenase metabolites and periodontal bone loss. 160 34

The complement-dependent phagocytic functions of polymorphonuclear leucocytes (PMNL) in peripheral blood from 15 patients with localized juvenile periodontitis (LJP), 13 with generalized juvenile periodontitis (GJP) and 52 with adult periodontitis (AP), and from 30 normal subjects as controls were measured by flow cytometry. Heparinized blood was collected and incubated with fluorescent microspheres, and erythrocytes were removed. By means of single-cell analysis the percentage of phagocytosing cells (% phagocytosis) and the mean number of microspheres phagocytosed by one PMNL (degree of phagocytosis; d-phagocytosis) were measured. Some but not all patients with LJP (53%) and GJP (46%) showed consistently low % phagocytosis and d-phagocytosis. On the other hand, only 6% of AP patients and no healthy subjects showed a reduction of PMNL phagocytosis. Phagocytosis was unchanged after initial periodontal treatment in all subjects, suggesting the depression of PMNL phagocytosis may not be a transient phenomenon associated with periodontal status. Furthermore, PMNLs from the LJP patients that showed depressed phagocytic function exhibited depressed phagocytic responses with either autologous or normal plasma, while control PMNLs with either normal or the patients' plasma showed normal responses. These results suggested that the depressed phagocytic responses in LJP patients could be due to cell-associated defect(s) on the PMNL.
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PMID:Flow cytometric evaluation of phagocytosis by peripheral blood polymorphonuclear leucocytes in human periodontal diseases. 163 64

The objective of this study was to evaluate the polymorphonuclear leukocyte (PMN) function in a poorly controlled adult insulin-dependent diabetic patient (IDDM) with severe recurrent periodontitis, while describing the microbiological and clinical findings. Chemotaxis, superoxide production, and phagocytosis and killing of Porphyromonas (Bacteroides) gingivalis by the IDDM PMN were evaluated 1 week before treatment relative to a healthy, matched control. These analyses revealed a significant (P less than .05) depression in the number of IDDM PMNs migrating along an FMLP gradient (Boyden chamber assay). In addition, a significant (P less than .05) enhancement of IDDM PMN superoxide production in response to opsonized zymosan (cytochrome C reduction) was observed. Phagocytosis and killing (fluorochrome phagocytosis assay) by IDDM PMN of two P. gingivalis strains was also impaired significantly (P less than .05). The subgingival microflora contained significant levels of P. gingivalis, Actinobacillus actinomycetemcomitans, Eikenella corrodens, and Peptostreptococcus micros. Periodontal treatment consisted of extraction of hopeless teeth, scaling and root planing and 3 weeks of Augmentin therapy. The antibiotic therapy resulted in unrecoverable numbers of the putative pathogens and a reduction in both gingival inflammation and disease progression. The IDDM healing response to previous surgical treatment and extractions was poor, presumably due to a marked thrombocytopenia (91 x 10(3) platelets/mm3).
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PMID:Defective neutrophil function in an insulin-dependent diabetes mellitus patients. A case report. 165 89

Microbiological, immunological, host-defensive, and genetic analyses were performed on a mother and daughter, both of whom had early-onset periodontitis (rapidly progressive periodontitis in the mother; localized juvenile periodontitis in the daughter). Microscopic examination revealed a greatly elevated percentage of rod-form bacteria in both subjects. Fusobacterium sp. and Porphyromonas gingivalis (formerly Bacteroides gingivalis) were the predominant microorganisms cultured. The humoral immune responses to F. nucleatum, P. gingivalis, and Actinobacillus actinomycetemcomitans were much higher in both subjects than those to any other periodontal bacteria examined. Functional and phenotypic analysis of the peripheral lymphocytes showed no significant abnormalities. However, investigation of neutrophil function showed that the mother had depressed neutrophil chemotaxis and superoxide production. The daughter had depression not only of chemotaxis and superoxide production, but also of neutrophil phagocytosis. Serological typing of HLA antigens revealed the same Class II HLA profile in both subjects. It was concluded that both subjects very probably had an identical condition and that these patients provided a unique model for improving our understanding of the host factors involved in periodontal disease.
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PMID:A family study of a mother and daughter with increased susceptibility to early-onset periodontitis: microbiological, immunological, host defensive, and genetic analyses. 212 13

One hundred consecutive patients, 74 women and 26 men, aged between 18 and 83 years (mean = 54.8 years), referred with complaints related to oral galvanism were investigated and treated and the treatment results were evaluated after 2-3 years. Forty of the patients reported facial pain, pain from the teeth, temporomandibular joints (TMJ) and masticatory muscles and TMJ clicking and locking and 26 reported headache. Smarting in the oral mucosa, smarting of the tongue and xerostomia were reported by 26, 21 and 24 patients, respectively, and 30 patients reported an unpleasant taste, a metallic taste or a battery taste. The same patient often reported several symptoms. The patients also reported various general symptoms, above all joint symptoms, pain in the back, neck and shoulders and general muscular pain but also tiredness, weakness, difficulty in concentrating, depression and insomnia. After clinical and radiological examination, salivary tests, determination of the maximum galvanic current at metallic contacts and screening for contact allergy to dental materials, various oral diagnoses could be established. Most of the patients exhibited functional disturbances of the masticatory system, periodontitis, smarting of the oral mucosa, xerostomia, pulpitis and pulpal necrosis and mucosal lesions. The medical illnesses the patients reported themselves to be suffering from or had been treated for included cardiovascular disorders, high and low blood pressure, asthma, rheumatic disorders, diabetes, pernicious anaemia, gastritis and peptic ulcer. Seventy-six patients took drugs regularly. In most cases there were several oral, dental and medical explanations for the symptoms.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Results obtained from patients referred for the investigation of complaints related to oral galvanism. 345 16

The objective of the present study was to determine the relationship between concentrations of antibodies in serum and those in gingival crevicular fluid (GCF) of patients with juvenile periodontitis and severe periodontitis. Most antigens used to quantitate antibodies were obtained from a panel of bacteria associated with juvenile periodontitis or severe periodontitis. We further investigated variation in antibody titer among different periodontal sites and the extent to which antibody in GCF is locally derived. Titers of antibody, total immunoglobulin G (IgG), and human serum albumin were determined with sensitive radioimmunoassays. The relationship between serum and GCF antibody was complex. Both person-to-person variability and marked variability within the same subject were found among different sites of similar clinical status. The site-to-site variability was found not only for antibody reactive with periodontal organisms, but also for antitetanus toxoid, total IgG, and even human serum albumin. Generally the variability was in the degree of depression of the level in GCF relative to that in serum. However, anti-Bacteroides gingivalis and anti-Actinobacillus actinomycetemcomitans in GCF often exceeded the level in serum. When antibody titers in serum and GCF were calculated per milligram of human serum albumin, most of the apparent depressions of antibody in GCF disappeared. The ratio of antibody in serum to that in GCF approached unity for all organisms except B. gingivalis and A. actinomycetemcomitans Y4, which were markedly elevated. Furthermore, the level of IgG per milligram of human serum albumin in GCF was about twice the level in serum. We believe that human serum albumin reflects serum contribution to the GCF, and we therefore attribute the increased level of IgG per milligram of albumin in GCF to local synthesis. It appears that anti-B. gingivalis and anti-A. actinomycetemcomitans represent an important portion of this local antibody synthesis, since most seropositive patients with severe or juvenile periodontitis had at least one site elevated, and the magnitudes of the elevations were large in many sites. Those sites yielding elevated antibody exhibited no obvious differences in clinical parameters of probeable depth or attachment level as compared with sites in which antibody levels in GCF were similar to serum levels. Elevated antibody in GCF may relate to changes in disease activity that are not detectable by usual clinical measures.
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PMID:Relationship between gingival crevicular fluid and serum antibody titers in young adults with generalized and localized periodontitis. 403 88

We report radiographic, clinical, historical, and laboratory observations on seven patients selected to illustrate the features and characteristics of rapidly progressive periodontitis, with the aim of establishing this disease as a distinct clinical entity. This form of periodontitis is seen most commonly in young adults in their twenties, but it can occur in postpubertal individuals up to approximately 35 years of age. During the active phase, the gingival tissues are extremely inflamed and there is hemorrhage, proliferation of the marginal gingiva, and exudation. Destruction is very rapid, with loss of much of the alveolar bone occurring within a few weeks or months. This phase may be accompanied by general malaise, weight loss, and depression, although these symptoms are not seen in all patients. The disease may progress, without remission, to tooth loss, or alternatively, it may subside and become quiescent with or without therapy. The quiescent phase is characterized by the presence of clinically normal gingiva that may be tightly adapted to the roots of teeth with very advanced bone loss and deep periodontal pockets. The quiescent phase may be permanent, it may persist for an indefinite period, or the disease activity may return. Most patients with rapidly progressive periodontitis have serum antibodies specific for various species of Bacteroides, Actinobacillus, or both, and manifest defects in either neutrophil or monocyte chemotaxis. Affected patients generally respond favorably to treatment by scaling and open or closed curettage, especially when accompanied by standard doses of antibiotics for conventional time periods. A small minority of patients do not respond to any treatment, including antibiotics, and the disease progresses inexorably to tooth loss even in the presence of aggressive periodontal therapy and maintenance. At the present time it is not possible to distinguish prior to treatment which individuals will respond to therapy and which will not.
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PMID:Rapidly progressive periodontitis. A distinct clinical condition. 657 28

The purpose of this investigation was to evaluate lipopolysaccharide (LPS)-stimulated monocyte secretory responses longitudinally in patients with generalized severe chronic adult periodontitis (periodontitis-susceptible) and controls with gingivitis (periodontitis-resistant). In addition, the expression of constitutive (Leu-M3) and LPS-inducible (Mo3e) antigens on monocytes isolated from these two groups was examined. Monocyte secretory function was assessed longitudinally; the effect of periodontal therapy in the susceptible patients was examined by comparing monocyte function before and after their treatment. Peripheral blood monocytes were isolated by counterflow centrifugal elutriation and treated with control medium or media containing 1 microgram/ml of Salmonella typhimurium LPS or Prevotella intermedia LPS with or without human recombinant interferon (IFN)-gamma pretreatment. Prostaglandin E2, F2 alpha and thromboxane B2 were quantified in culture samples by gas chromatography-mass spectrometry (GC-MS) and interleukin-1 beta was quantified by enzyme-linked immunosorbent assay. Leu-M3 and Mo3e antigen expression was assessed by FACScan. Three major findings were made. First, LPS-stimulated IL-1 beta release by monocytes from susceptible patients was depressed relative to that in resistant patients at the initial donation. After periodontal therapy, there was virtually identical IL-1 beta release in LPS-stimulated cultures from both groups. However, in susceptible patients IL-beta release was diminished after periodontal therapy in cultures pretreated with IFN-gamma. Second, there was a significant drift in monocyte secretion of prostaglandin E2 in samples from the resistant patients between the first two donations and the third donation. PGE2 release did not differ between groups at the initial donation, although there was a depression in PGE2 release in the susceptible group at the final donation when IFN-gamma was followed by S. typhimurium LPS.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Longitudinal evaluation of peripheral blood monocyte secretory function in periodontitis-resistant and periodontitis-susceptible patients. 851 3

On the basis of clinical observations, some periodontologists have suggested an association between psychosocial factors such as depression, stress and anxiety, and adult onset rapidly progressive periodontitis (RPP). This study investigated more formally possible associations between a number of relevant psychosocial factors and RPP. The significance of the psychosocial variables was assessed by comparing 3 groups: 50 patients with RPP, 50 patients with routine chronic adult periodontitis (RCAP), and 50 patients without significant periodontal destruction (controls). It was anticipated that the RPP group would show higher levels of psychosocial maladjustment than the RCAP and control groups. A between-subjects multivariate analysis of covariance indicated that the combined psychosocial variables were significantly related to the periodontal diagnosis. 2 psychosocial factors, depression and loneliness, were significant in distinguishing between groups. The RPP group presented significantly increased depression and loneliness compared to the RCAP and control groups. Future research is indicated to further clarify the significance of these psychosocial differences in relation to the onset and progression of RPP.
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PMID:Psychosocial factors and adult onset rapidly progressive periodontitis. 887 67


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