Browsing by Author "Durmus, B"

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    Isokinetic evaluation of knee extensor/flexor muscle strength in Behcet's patients
    Durmus, B; Emre, S; Sahin, N; Karincaoglu, Y; Dogan, E; Baysal, O; Ersoy, Y; Altay, Z
    Background: Behcet's disease (BD) is an idiopathic, multisystemic, progressive disease. The purpose of this study is to compare the knee flexor and extensor isokinetic muscle strengths of Behcet's patients with that of healthy subjects. Methods: Twenty-five (13 male and 12 female) patients with BD and 25 (15 male and 10 female) healthy individuals were included in the study Velocities of 90 degrees/sec, 120 degrees/sec, and 150 degrees/sec were used for the isokinetic muscle strength testing. Patients with active inflammatory knee arthritis were excluded. Peak torque (Nm) and peak torque adjusted to body weight (%) were taken into consideration for comparison between study groups. Results: Compared to healthy controls, there was a statistically significant decrease in both the bilateral knee extensor and flexor muscle isokinetic peak torques (Nm) as well as the peak torques adjusted to body weight (%) at velocities of 90 degrees/sec, 120 degrees/sec and 150 degrees/sec in patients with BD (p < 0.05). However, there was no significant difference in the agonist-antagonist ratio of the isokinetic peak torques of knee muscles between the two groups. Conclusion: In light of these findings, we have concluded that both knee flexor and extensor isokinetic muscle strengths are lower in BD. We therefore recommend careful monitoring of patients with BD in temis of muscle strength.
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    Femoral cartilage thickness measurements in healthy individuals: Learning, practicing and publishing with TURK-MUSCULUS
    Özçakar, L; Tunç, H; Öken, Ö; Ünlü, Z; Durmus, B; Baysal, Ö; Altay, Z; Tok, F; Akkaya, N; Dogu, B; Çapkin, E; Bardak, A; Çarli, AB; Bugdayci, D; Toktas, H; Diraçoglu, D; Gündüz, B; Erhan, B; Kocabas, H; Erdenn, G; Günendi, Z; Kesikburun, S; Omaç, ÖK; Taskaynatan, M; Senel, K; Ugur, M; Yalçinkaya, EY; Önes, K; Atan, Ç; Akgun, K; Bilgici, A; Kuru, Ö; Özgöçmen, S
    BACKGROUND AND OBJECTIVES: Measurement of the femoral cartilage thickness by using in-vivo musculoskeletal ultrasonography (MSUS) has been previously shown to be a valid and reliable method in previous studies; however, to our best notice, normative data has not been provided before in the healthy population. The aim of our study was to provide normative data regarding femoral cartilage thicknesses of healthy individuals with collaborative use of MSUS. METHODS: This is across-sectional study run at Physical and Rehabilitation Medicine Departments of 18 Secondary and Tertiary Centers in Turkey. 1544 healthy volunteers (aged between 25-40 years) were recruited within the collaboration of TURK-MUSCULUS (Turkish Musculoskeletal Ultrasonography Study Group). Subjects who had a body mass index value of less than 30 and who did not have signs and symptoms of any degenerative/inflammatory arthritis or other rheumatic diseases, history of knee trauma and previous knee surgery were enrolled. Ultrasonographic measurements were performed axially from the suprapatellar window by using linear probes while subjects' knees were in maximum flexion. Three (mid-point) measurements were taken from both knees (lateral condyle, intercondylar area, medial condyle). RESULTS: A total of 2876 knees (of 817 M, 621 F subjects) were taken into analysis after exclusion of inappropriate images. Mean cartilage thicknesses were significantly lower in females than males (all p < 0.001). Thickness values negatively correlated with age; negatively (females) and positively (males) correlated with smoking. Men who regularly exercised had thicker cartilage than who did not exercise (all p < 0.05). Increased age (in both sexes) and absence of exercise (males) were found to be risk factors for decreased cartilage thicknesses. CONCLUSION: Further data pertaining to other countries would be interesting to uncover whether ethnic differences also affect cartilage thickness. Collaborative use of MSUS seems to be promising in this regard.
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    Identification of the molecular etiology in rare congenital hemolytic anemias using next-generation sequencing with exome-based copy number variant analysis
    Isik, E; Aydinok, Y; Albayrak, C; Durmus, B; Karakas, Z; Orhan, MF; Sarper, N; Aydin, S; Unal, S; Oymak, Y; Karadas, N; Turedi, A; Albayrak, D; Tayfun, F; Tugcu, D; Karaman, S; Tobu, M; Unal, E; Ozcan, A; Unal, S; Aksu, T; Unuvar, A; Bilici, M; Azik, F; Ay, Y; Gelen, SA; Zengin, E; Albudak, E; Eker, I; Karakaya, T; Cogulu, O; Ozkinay, F; Atik, T
    ObjectivesIn congenital hemolytic anemias (CHA), it is not always possible to determine the specific diagnosis by evaluating clinical findings and conventional laboratory tests. The aim of this study is to evaluate the utility of next-generation sequencing (NGS) and clinical-exome-based copy number variant (CNV) analysis in patients with CHA.MethodsOne hundred and forty-three CHA cases from 115 unrelated families referred for molecular analysis were enrolled in the study. Molecular analysis was performed using two different clinical exome panels in 130 patients, and whole-exome sequencing in nine patients. Exome-based CNV calling was incorporated into the traditional single-nucleotide variant and small insertion/deletion analysis pipeline for NGS data in 92 cases. In four patients from the same family, the PK Gypsy variant was investigated using long-range polymerase chain reaction.ResultsMolecular diagnosis was established in 86% of the study group. The most frequently mutated genes were SPTB (31.7%) and PKLR (28.5%). CNV analysis of 92 cases revealed that three patients had different sizes of large deletions in the SPTB and six patients had a deletion in the PKLR.ConclusionsIn this study, NGS provided a high molecular diagnostic rate in cases with rare CHA. Analysis of the CNVs contributed to the diagnostic success.