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    Effect of periodontal disease on oxidative stress markers in patients with atherosclerosis
    (Springer Heidelberg, 2022) Sari, Aysegul; Davutoglu, Vedat; Bozkurt, Emrullah; Taner, Ibrahim Levent; Erciyas, Kamile
    Objectives The aim of this study was to investigate the effect of periodontal inflammation on oxidative stress in patients with atherosclerosis by considering serum and saliva total antioxidant status (TAS), total oxidant status (TOS), and oxidative stress index (OSI). Materials and methods In the study, there were 4 groups, with 20 individuals in each group. These groups consisted of individuals who had periodontitis with atherosclerosis (group A-P), were periodontally healthy with atherosclerosis (group A-C), were systemically healthy with periodontitis (group P), and were systemically and periodontally healthy (group C). Clinical periodontal parameters were recorded. PISA values were calculated. Atherosclerosis severity was determined by the Gensini score. The ratio of TAS/TOS resulting in the OSI levels of the serum and saliva samples was examined biochemically. Results Group A-P serum TAS and group C saliva OSI values were lower than those of the other groups (p < 0.05). Group A-P serum TOS and OSI values were higher than those of the other groups (p < 0.05). Groups A-C and P serum TOS and OSI values were higher than those of group C (p < 0.05). In the multivariate linear regression analysis, group A-P and PISA values were independently associated with serum TOS and OSI values (p < 0.05). Group A-P, group P, and PISA values were independently associated with saliva OSI values (p < 0.05). Conclusions Periodontitis and atherosclerosis may have systemic oxidative stress-increasing effects. The coexistence of periodontitis and atherosclerosis increases oxidative stress beyond that seen in either condition alone. Periodontitis can be associated with increased systemic TOS and OSI values in patients with atherosclerosis.
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    Effect of periodontitis on oxidative stress parameters in patients with rheumatic heart valve disease
    (Pergamon-Elsevier Science Ltd, 2021) Sari, Aysegul; Davutoglu, Vedat; Bozkurt, Emrullah; Tarakcioglu, Mehmet; Erciyas, Kamile
    Objective: The aim of this study was to evaluate the effects of periodontitis on oxidative stress parameters by investigating serum and gingival crevicular fluid (GCF) total antioxidant capacity (TAOC), total oxidant status (TOS), and oxidative stress index (OSI) values in patients with rheumatic heart valve disease (RHVD). Materials and methods: The study population comprised 76 patients, who were divided into four groups: chronic periodontitis with RVHD (RV-CP), periodontally healthy with RVHD (RV-C), systemically healthy with chronic periodontitis (CP), and systemically and periodontally healthy (C). Demographic, periodontal, and echocardiographic parameters were measured. Serum and GCF oxidative stress parameters were evaluated based on the OSI. Results: Similar serum oxidative stress parameters were found in all study groups (P >= 0.05). The GCF TAOC values of the C group were significantly higher than those of the other groups (P = 0.001). The GCF OSI values of the C group were significantly lower than those of the other groups (P = 0.001). The GCF TOS and OSI values of the RV-CP group were significantly higher than those of the CP and C groups (P = 0.001). The GCF TOS value of the RV-C group was significantly higher than those of the CP and C groups (P = 0.001). Conclusions: Altered local oxidative stress profile was associated with the presence of periodontitis. Rheumatic heart valve disease may increase oxidative stress in individuals with chronic periodontitis.
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    Partial Thrombus Resolution With Trofiban in a Pregnant Woman With Mechanical Prosthetic Mitral Valve Thrombosis
    (Sage Publications Inc, 2011) Akcay, Adnan Burak; Yuce, Murat; Akcay, Murat; Sen, Nihat; Soydinc, Hatice Ender; Davutoglu, Vedat
    We present a 15-week pregnant woman who developed mechanical mitral valve thrombosis on a fixed dose of enoxaparin therapy 60 mg twice daily. No reductions were observed in the thrombus size or mean mitral gradient on transesophageal echocardiography (TEE) with 1 week of unfractioned heparin therapy. As the thrombus on TEE imaging was hypermobile and fragile, in addition to a higher dose of enoxaparin (80 mg twice daily), trofiban infusion 0.20 mu g/kg per minute was administered for another 1 week. The thrombus on the valve was reduced in size, mobility and fragility of the thrombus diminished, and mean valve gradient decreased on TEE. As complete thrombus resolution was not observed and limitation of valve mobility continued, tissue plasminogen activator (tPA) was given to the patient. A complete thrombus resolution was observed on this therapy. The patient is presented for being the first case in literature whose valvular thrombus reduced with trofiban therapy.