scholarly journals Omega-3 Fatty Acid Effect on Alveolar Bone Loss in Rats

2006 ◽  
Vol 85 (7) ◽  
pp. 648-652 ◽  
Author(s):  
L. Kesavalu ◽  
B. Vasudevan ◽  
B. Raghu ◽  
E. Browning ◽  
D. Dawson ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Bone Resorption ◽  
Periodontal Disease ◽  
Alveolar Bone ◽  
Corn Oil ◽  
Elevated Serum ◽  
Serum Levels ◽  
Omega 3 ◽  
Igg Antibody ◽  
Inflammatory Reactions

Gingival inflammation and alveolar bone resorption are hallmarks of adult periodontitis, elicited in response to oral micro-organisms such as Porphyromonas gingivalis. We hypothesized that omega (ω)-3 fatty acids (FA) dietary supplementation would modulate inflammatory reactions leading to periodontal disease in infected rats. Rats were fed fish oil (ω-3 FA) or corn oil (n-6 FA) diets for 22 weeks and were infected with P. gingivalis. Rats on the ω-3 FA diet exhibited elevated serum levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), documenting diet-induced changes. PCR analyses demonstrated that rats were orally colonized by P. gingivalis; increased IgG antibody levels substantiated this infection. P. gingivalis-infected rats treated with ω-3 FA had significantly less alveolar bone resorption. These results demonstrated the effectiveness of an ω-3 FA-supplemented diet in modulating alveolar bone resorption following P. gingivalis infection, and supported that ω-3 FA may be a useful adjunct in the treatment of periodontal disease. Abbreviations: PUFA, polyunsaturated fatty acid; EPA, eicosapentanoic acid; DHA, docosahexanoic acid; and PCR, polymerase chain-reaction.

scholarly journals Rat Model of Polymicrobial Infection, Immunity, and Alveolar Bone Resorption in Periodontal Disease

2007 ◽  
Vol 75 (4) ◽  
pp. 1704-1712 ◽  
Author(s):  
Lakshmyya Kesavalu ◽  
Sabapathi Sathishkumar ◽  
Vasudevan Bakthavatchalu ◽  
Chad Matthews ◽  
Dolph Dawson ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Periodontal Disease ◽  
Alveolar Bone ◽  
Fusobacterium Nucleatum ◽  
Polymicrobial Infection ◽  
Radiographic Measurement ◽  
Igg Antibody ◽  
Oral Infections ◽  
Periodontal Inflammation ◽  
Polymicrobial Infections

ABSTRACT One of the predominant polymicrobial infections of humans is expressed clinically as periodontal disease. Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia have been strongly implicated as members of a pathogenic consortium in the etiology of adult periodontitis. In this study we hypothesized that P. gingivalis, T. denticola, and T. forsythia are synergistic in terms of virulence potential and induce chronic periodontal inflammation that leads to alveolar bone resorption in a polymicrobial infection in rats. Groups of rats were infected with either P. gingivalis, T. denticola, or T. forsythia in monomicrobial infections or with all three species in polymicrobial oral infections with or without Fusobacterium nucleatum. PCR analyses of oral microbial samples demonstrated that rats infected with one bacterium were orally colonized by each of the bacteria during the study interval, and increased serum immunoglobulin G (IgG) antibody levels substantiated the interaction of the host with the infecting bacteria. PCR analyses of the rats with polymicrobial infections demonstrated that most rats were infected with P. gingivalis, T. denticola, and T. forsythia as a consortium. Furthermore, all rats exhibited a significant increase in the level of IgG antibody to the polymicrobial consortium. Radiographic measurement of alveolar bone resorption showed that rats infected with the polymicrobial consortium with or without F. nucleatum exhibited significantly increased alveolar bone resorption compared to the resorption in uninfected control rats, as well as the resorption in rats infected with one of the microbes. These results documented that P. gingivalis, T. denticola, and T. forsythia not only exist as a consortium that is associated with chronic periodontitis but also exhibit synergistic virulence resulting in the immunoinflammatory bone resorption characteristic of periodontitis.

scholarly journals ASSOCIATION BETWEEN PERIODONTAL DISEASE AND OSTEOPOROSIS

2017 ◽  
Vol 26 (3) ◽  
pp. 107-114
Author(s):  
Dan Piperea-Sianu ◽  
◽  
Adela M. Ceau ◽  
Mara Carsote ◽  
Alexandru G. Croitoru ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Bone Loss ◽  
Bone Formation ◽  
Periodontal Disease ◽  
Alveolar Bone ◽  
Serum Levels ◽  
Bone Lysis ◽  
Local Impact ◽  
Systemic Bone Loss

Osteoporosis and periodontal disease (PD) are two chronic diseases, characterized by bone loss, with systemic or local impact (alveolar bone). Both pathologies have a progressive evolution, leading to systemic bone loss in the case of osteoporosis and bone lysis localized in the alveolar bone in the case of periodontal disease. The present paper presents recent data from the literature on the association between periodontal disease and osteoporosis, on the role of cytokines in the bone resorption-apposition imbalance, and on how periodontal disease causes changes in serum levels of cytokines, leading to disorders in the systemic bone formation. We also found it useful, especially for rheumatologists, to outline the extent to which periodontal disease can create a systemic context favorable to the development of osteoporosis.

scholarly journals Invasion of Oral and Aortic Tissues by Oral Spirochete Treponema denticola in ApoE−/−Mice Causally Links Periodontal Disease and Atherosclerosis

2014 ◽  
Vol 82 (5) ◽  
pp. 1959-1967 ◽  
Author(s):  
Sasanka S. Chukkapalli ◽  
Mercedes F. Rivera ◽  
Irina M. Velsko ◽  
Ju-Youn Lee ◽  
Hao Chen ◽  
...  
Keyword(s):  
Periodontal Disease ◽  
Alveolar Bone ◽  
Tissue Growth ◽  
Aortic Tissue ◽  
Treponema Denticola ◽  
Rapid Progression ◽  
Causative Role ◽  
Igg Antibody ◽  
Content Type ◽  
Periodontal Infection

ABSTRACTTreponema denticolais a predominantly subgingival oral spirochete closely associated with periodontal disease and has been detected in atherosclerosis. This study was designed to evaluate causative links between periodontal disease induced by chronic oralT. denticolainfection and atherosclerosis in hyperlipidemic ApoE−/−mice. ApoE−/−mice (n= 24) were orally infected withT. denticolaATCC 35404 and were euthanized after 12 and 24 weeks.T. denticolagenomic DNA was detected in oral plaque samples, indicating colonization of the oral cavity. Infection elicited significantly (P= 0.0172) higher IgG antibody levels and enhanced intrabony defects than sham infection.T. denticola-infected mice had higher levels of horizontal alveolar bone resorption than sham-infected mice and an associated significant increase in aortic plaque area (P≤ 0.05). Increased atherosclerotic plaque correlated with reduced serum nitric oxide (NO) levels and increased serum-oxidized low-density lipoprotein (LDL) levels compared to those of sham-infected mice.T. denticolainfection altered the expression of genes known to be involved in atherosclerotic development, including the leukocyte/endothelial cell adhesion gene (Thbs4), the connective tissue growth factor gene (Ctgf), and the selectin-E gene (Sele). Fluorescentin situhybridization (FISH) revealedT. denticolaclusters in both gingival and aortic tissue of infected mice. This is the first study examining the potential causative role of chronicT. denticolaperiodontal infection and vascular atherosclerosisin vivoin hyperlipidemic ApoE−/−mice.T. denticolais closely associated with periodontal disease and the rapid progression of atheroma in ApoE−/−mice. These studies confirm a causal link for active oralT. denticolainfection with both atheroma and periodontal disease.

scholarly journals The combined supplementation of omega-3 fatty acids and probiotics decreased the levels of serum polyamines in experimental colitis

2021 ◽  
Vol 7 (4) ◽  
pp. 279-285
Author(s):  
Havvanur Yoldaş İlktaç ◽  
Nihal Büyükuslu ◽  
Cüneyd Parlayan
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
High Performance ◽  
Experimental Colitis ◽  
Serum Levels ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Lower Serum ◽  
Omega 3 Fatty Acid ◽  
Combined Supplementation

Polyamines play an important role in the maintenance of intestinal permeability. Therefore we aimed to determine the effects of probiotics and omega 3 fatty acids on serum polyamine levels in colitis. Fifty BALB/c mice were randomly grouped as normal, colitis with no treatment applied, colitis treated by probiotics (VSL#3), colitis treated by omega-3, and colitis treated by both probiotics and omega-3. Experimental colitis was induced by injection of 200 mg/kg 2,4-Dinitrobenzenesulfonic acid (DNBS). The probiotic and the omega-3 fatty acid supplements were applied daily by oral gavage. Serum polyamine levels were measured with high performance liquid chromatography (HPLC). In each group, the levels of serum polyamines are the highest in spermidine and the least in spermine. Bowel inflammation in experimentally induced colitis mice resulted in lower serum polyamine concentrations. In probiotic and omega 3 fatty acid supplemented group significant decreases were observed for spermine and spermidine (p<0.001), while no significant changes were obtained for putrescine. Combined supplementation of probiotics and omega-3 fatty acids for 10 days in colitis mice significantly decreased the serum levels of spermine and spermidine.

scholarly journals Dietary DHA/EPA Ratio Changes Fatty Acid Composition and Attenuates Diet-Induced Accumulation of Lipid in the Liver of ApoE−/− Mice

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Liang Liu ◽  
Qinling Hu ◽  
Huihui Wu ◽  
Xiujing Wang ◽  
Chao Gao ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Lipid Metabolism ◽  
Liver Disease ◽  
Inflammatory Responses ◽  
Elevated Serum ◽  
Serum Levels ◽  
Hepatic Lipid Metabolism ◽  
Hepatic Lipid ◽  
Fa Composition

Diets containing various docosahexaenoic acid (DHA)/eicosapentaenoic acid (EPA) ratios protect against liver damage in mice fed with a high-fat diet (HFD). However, it is unclear whether these beneficial roles of DHA and EPA are associated with alterations of fatty acid (FA) composition in the liver. This study evaluated the positive impacts of n-6/n-3 polyunsaturated fatty acids (PUFAs) containing different DHA/EPA ratios on HFD-induced liver disease and alterations of the hepatic FA composition. ApoE−/− mice were fed with HFDs with various ratios of DHA/EPA (2 : 1, 1 : 1, and 1 : 2) and an n-6/n-3 ratio of 4 : 1 for 12 weeks. After treatment, the serum and hepatic FA compositions, serum biochemical parameters, liver injury, and hepatic lipid metabolism-related gene expression were determined. Our results demonstrated that dietary DHA/EPA changed serum and hepatic FA composition by increasing contents of n-6 and n-3 PUFAs and decreasing amounts of monounsaturated fatty acids (MUFAs) and the n-6/n-3 ratio. Among the three DHA/EPA groups, the DHA/EPA 2 : 1 group tended to raise n-3 PUFAs concentration and lower the n-6/n-3 ratio in the liver, whereas DHA/EPA 1 : 2 tended to raise n-6 PUFAs concentration and improve the n-6/n-3 ratio. DHA/EPA supplementation reduced the hepatic impairment of lipid homeostasis, oxidative stress, and the inflammatory responses in HFD-fed mice. The DHA/EPA 2 : 1 group had lower serum levels of total cholesterol, triglycerides, and low-density lipoprotein cholesterol and higher levels of adiponectin than HFD group. The DHA/EPA 1 : 2 group had elevated serum levels of aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase, without significant change the expression of genes for inflammation or hepatic lipid metabolism among the three DHA/EPA groups. The results suggest that DHA/EPA-enriched diet with an n-6/n-3 ratio of 4 : 1 may reverse HFD-induced nonalcoholic fatty liver disease to some extent by increasing n-6 and n-3 PUFAs and decreasing the amount of MUFAs and the n-6/n-3 ratio.

scholarly journals Inhibitory effect of omega-3 fatty acids on alveolar bone resorption and osteoclast differentiation

2020 ◽  
Vol 62 (3) ◽  
pp. 298-302 ◽  
Author(s):  
Yu Ozaki ◽  
Toshiya Morozumi ◽  
Kiyoko Watanabe ◽  
Toshizo Toyama ◽  
Haruka Sasaki ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Bone Resorption ◽  
Alveolar Bone ◽  
Osteoclast Differentiation ◽  
Inhibitory Effect ◽  
Omega 3 Fatty Acids ◽  
Omega 3

scholarly journals Role of Porphyromonas gingivalis Phosphoserine Phosphatase Enzyme SerB in Inflammation, Immune Response, and Induction of Alveolar Bone Resorption in Rats

2010 ◽  
Vol 78 (11) ◽  
pp. 4560-4569 ◽  
Author(s):  
Brian Bainbridge ◽  
Raj K. Verma ◽  
Christie Eastman ◽  
Bilal Yehia ◽  
Mercedes Rivera ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Epithelial Cells ◽  
Periodontal Disease ◽  
Porphyromonas Gingivalis ◽  
Rat Model ◽  
Alveolar Bone ◽  
Critical Role ◽  
Polymorphonuclear Neutrophil ◽  
Gingival Epithelial Cells ◽  
Phosphatase Enzyme

ABSTRACT Porphyromonas gingivalis secretes a serine phosphatase enzyme, SerB, upon contact with gingival epithelial cells in vitro. The SerB protein plays a critical role in internalization and survival of the organism in epithelial cells. SerB is also responsible for the inhibition of interleukin-8 (IL-8) secretion from gingival epithelial cells infected with P. gingivalis. This study examined the ability of a P. gingivalis SerB mutant to colonize the oral cavity and induce gingival inflammation, immune responses, and alveolar bone resorption in a rat model of periodontal disease. Both P. gingivalis ATCC 33277 and an isogenic ΔSerB mutant colonized the oral cavities of rats during the 12-week experimental period. Both of the strains induced significant (P < 0.05) systemic levels of immunoglobulin G (IgG) and isotypes IgG1, IgG2a, and IgG2b, indicating the involvement of both T helper type 1 (Th1) and Th2 responses to infection. Both strains induced significantly (P < 0.05) higher levels of alveolar bone resorption in infected rats than in sham-infected control rats. However, horizontal and interproximal alveolar bone resorption induced by the SerB mutant was significantly (P < 0.05) lower than that induced by the parental strain. Rats infected with the ΔSerB mutant exhibited significantly higher levels of apical migration of the junctional epithelium (P < 0.01) and polymorphonuclear neutrophil (PMN) recruitment (P < 0.001) into the gingival tissues than rats infected with the wild type. In conclusion, in a rat model of periodontal disease, the SerB phosphatase of P. gingivalis is required for maximal alveolar bone resorption, and in the absence of SerB, more PMNs are recruited into the gingival tissues.

scholarly journals Magnolol Ameliorates Ligature-Induced Periodontitis in Rats and Osteoclastogenesis:In VivoandIn VitroStudy

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Sheng-Hua Lu ◽  
Ren-Yeong Huang ◽  
Tz-Chong Chou
Keyword(s):  
Bone Resorption ◽  
Bone Loss ◽  
Periodontal Disease ◽  
Alveolar Bone ◽  
Morphological Changes ◽  
Osteoclast Differentiation ◽  
Alveolar Bone Loss ◽  
Tartrate Resistant Acid Phosphatase ◽  
Nuclear Factor ◽  
Raw264.7 Macrophages

Periodontal disease characterized by alveolar bone resorption and bacterial pathogen-evoked inflammatory response has been believed to have an important impact on human oral health. The aim of this study was to evaluate whether magnolol, a main constituent ofMagnolia officinalis, could inhibit the pathological features in ligature-induced periodontitis in rats and osteoclastogenesis. The sterile, 3–0 (diameter; 0.2 mm) black braided silk thread, was placed around the cervix of the upper second molars bilaterally and knotted medially to induce periodontitis. The morphological changes around the ligated molars and alveolar bone were examined by micro-CT. The distances between the amelocemental junction and the alveolar crest of the upper second molars bilaterally were measured to evaluate the alveolar bone loss. Administration of magnolol (100 mg/kg, p.o.) significantly inhibited alveolar bone resorption, the number of osteoclasts on bony surface, and protein expression of receptor activator of nuclear factor-κB ligand (RANKL), a key mediator promoting osteoclast differentiation, in ligated rats. Moreover, the ligature-induced neutrophil infiltration, expression of inducible nitric oxide synthase, cyclooxygenase-2, matrix metalloproteinase (MMP)-1 and MMP-9, superoxide formation, and nuclear factor-κB activation in inflamed gingival tissues were all attenuated by magnolol. In thein vitrostudy, magnolol also inhibited the growth ofPorphyromonas gingivalis and Aggregatibacter actinomycetemcomitansthat are key pathogens initiating periodontal disease. Furthermore, magnolol dose dependently reduced RANKL-induced osteoclast differentiation from RAW264.7 macrophages, tartrate-resistant acid phosphatase (TRAP) activity of differentiated cells accompanied by a significant attenuation of resorption pit area caused by osteoclasts. Collectively, we demonstrated for the first time that magnolol significantly ameliorates the alveolar bone loss in ligature-induced experimental periodontitis by suppressing periodontopathic microorganism accumulation, NF-κB-mediated inflammatory mediator synthesis, RANKL formation, and osteoclastogenesis. These activities support that magnolol is a potential agent to treat periodontal disease.

scholarly journals Increased Expression of the Leptin Gene in Adipose Tissue of Patients with Chronic Kidney Disease–The Possible Role of an Abnormal Serum Fatty Acid Profile

Metabolites ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 98
Author(s):  
Justyna Korczyńska ◽  
Aleksandra Czumaj ◽  
Michał Chmielewski ◽  
Maciej Śledziński ◽  
Adriana Mika ◽  
...  
Keyword(s):  
Gene Expression ◽  
Chronic Kidney Disease ◽  
Adipose Tissue ◽  
Fatty Acid ◽  
Kidney Disease ◽  
Elevated Serum ◽  
Serum Levels ◽  
Mrna Levels ◽  
Serum Fatty Acid ◽  
Serum Leptin

Chronic kidney disease (CKD) is associated with an increased level of leptin and an abnormal fatty acid (FA) profile in the serum. However, there are no data on the associations between them, and the reason for increased serum levels in patients with CKD is not well elucidated. Recently, we found that a CKD-related abnormal FA profile caused significant changes in the expression of genes involved in lipid metabolism in hepatocytes. The aim of this study was to examine whether leptin gene expression in subcutaneous adipose tissue (SAT) of patients with CKD may contribute to increased serum levels of this adipokine and whether the abnormal serum FA profile observed in CKD patients has an impact on leptin gene expression in adipocytes. The FA profile was measured in serum samples from patients with CKD and controls by GC–MS. The relative mRNA levels of leptin were measured in SAT by Real-Time PCR. Moreover, the effect of the CKD-related abnormal FA profile on leptin gene expression was studied in in vitro cultured 3T3-L1 adipocytes. Patients with CKD had higher concentrations of serum leptin than controls and higher expression level of the leptin gene in SAT. They also had increased serum monounsaturated FAs and decreased polyunsaturated FAs. The incubation of adipocytes with FAs isolated from CKD patients resulted in an increase of the levels of leptin mRNA. Increased leptin gene expression in SAT may contribute to elevated concentrations of these adipokine in patients with CKD. CKD-related alterations of the FA profile may contribute to elevated serum leptin concentrations in patients with CKD by increasing the gene expression of this adipokine in SAT.

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