Browsing by Author "Altun, Y"

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    ON THE SABBAN FRAME BELONGING TO INVOLUTE-EVOLUTE CURVES
    Senyurt, S; Altun, Y; Cevahir, C; Kocayigit, H
    In this paper, we investigate special Smarandache curves with regard to Sabban frame of involute curve. We create Sabban frame belonging to spherical indicatrix of involute curve. Smarandache curves are explained by Sabban vectors belonging to spherical indicatrix. Then, we calculate geodesic curvatures of this Smarandache curves. The results found for each curve is given depending on evolute curve. The example related to the subject is given and their figures are drawn with MAPPLE program.
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    SOME SPECIAL CURVES BELONGING TO MANNHEIM CURVES PAIR
    Senyurt, S; Altun, Y; Cevaihr, C; Kocayigit, H
    In this paper, we investigate special Smarandache curves with regard to Sabban frame for Mannheim partner curve spherical indicatrix. We create Sabban frame belonging to this curves. Smarandache curves are explained by taking position vector as Sabban vectors belonging to this curves. Then, we calculate geodesic curvatures of this Smarandache curves. Found results are expressed depending on the Mannheim curve.
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    The role of oligoclonal band count and IgG index in treatment response and disease activity in multiple sclerosis
    Taskiran, E; Terzi, M; Helvaci, EM; Eser, MZ; Avci, B; Faruk, TO; Yetkin, MF; Çilingir, V; Bir, LS; Kabay, SC; Bilge, N; Poyraz, T; Demir, CF; Dündar, DK; Ocak,Ö; Çam, M; Mavioglu, H; Altun, Y; Karaibrahimoglu, A
    Background/aim: Multiple sclerosis (MS) is an inflammatory demyelinating central nervous system (CNS) disease. Among the paraclinical tests, brain and spinal Magnetic Resonance Imaging (MRI) is primarily involved in the diagnosis process, and cerebrospinal fluid (CSF) analysis is fundamental in diagnosing MS and the differential diagnosis. A positive relationship was demonstrated between oligoclonal band (OCB) positivity, CSF band number and immunoglobulin G(IgG) index. The study aimed to evaluate whether the number of OCB can predict disease activity and determine a correlation with the IgG index. Methods: Our study included 401 MS patients who had relapsing-remitting multiple sclerosis (RRMS), primary progressive multiple sclerosis (PPMS), secondary progressive multiple sclerosis (SPMS), clinic isolated syndrome (CIS), radiologic isolated syndrome (RIS), Neuromyelitis optica spectrum disorder (NMOSD) and Acute disseminated encephalomyelitis (ADEM) with OCB number groups of 2-4, 4-8, 8-12, and 12 and above. Results: No significant correlation was observed between IgG index, pre-and post-treatment EDSS (Expanded Disability Status Scale Scores) and disease-modifying therapies (DMT). Drug response was better in the patient group with band number between 2 and 8 and post-treatment EDSS scores were lower (1.62 +/- 0.44). Conclusion: The study results suggested that band number may be as valuable as the IgG index and a predictive biomarker for disease activity.
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    The role of oligoclonal band count and IgG index in treatment response and disease activity in multiple sclerosis (vol 83,105391,2024)
    Taskiran, E; Terzi, M; Helvaci, EM; Eser, MZ; Avci, B; Faruk, TO; Yetkin, MF; Cilingir, V; Bir, LS; Kabay, SC; Bilge, N; Poyraz, T; Demir, CF; Dündar, DK; Deveci, EE; Cam, M; Mavioglu, H; Altun, Y; Karaibrahimoglu, A