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    Investigation of the effect of ghrelin on bone fracture healing in rats
    (Wiley, 2021) Erener, Tamer; Ceritoglu, Kubilay Uğurcan; Aktekin, Cem Nuri; Dalgıç, Ali Deniz; Keskin, Dilek; Geneci, Ferhat; Ocak, Mert; Bilecenoglu, Burak; Hücümenoğlu, Sema; Çaydere, Muzaffer; Senes, Mehmet; Sezgin, Özge
    Ghrelin is known to have effects on proliferation and differentiation of osteoblasts and improvement of bone mineral density in rats. However, no experimental research on ghrelin's effects on fracture healing has been reported. In this context, the effect of ghrelin on the union of femoral shaft fractures was examined in this study by evaluating whether ghrelin will directly contribute to fracture healing. Forty male Wistar-Albino rats were divided into two groups as control and experimental (ghrelin treated) and standard closed shaft fractures were created in the left femurs of all rats. Daily ghrelin injections were applied to the experimental groups and equal numbers of rats were killed after 14 and 28 days following fracture formation. Tissue samples were examined with radiological, biomechanical, biochemical and histological analyses. Densitometry study showed that bone mineral density was improved after 28 days of ghrelin treatment compared to control. On histological examination, at the end of the 14 and 28 days of recovery, significant union was observed in the ghrelin-treated group. The ghrelin-treated group had higher breaking strength and stiffness at the end of 28 days of recovery. Biochemically, ALP levels were found to be higher in the ghrelin-treated group at the end of 28 days of recovery. Results showed that ghrelin directly contributes to fracture healing and it is promising to consider the effect of ghrelin on fracture healing in human studies with pharmacological applications.
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    The effect of gender on disease activity and clinical characteristics in patients with axial psoriatic arthritis
    (Oxford University Press, 2021) Nas, Kemal; Kiliç, Erkan; Tekeoğlu, İbrahim; Keskin, Yaşar; Çevik, Remzi; Sargin, Betül; Acer Kasman, Sevtap; Alkan, Hakan; Sahin, Nilay; Cengiz, Gizem; Cüzdan, Nihan; Albayrak Gezer, İlknur; Keskin, Dilek; Mülkoglu, Cevriye; Reşorlu, Hatice; Ataman, Şebnem; Bal, Ajda; Baykul, Merve; Duruöz, Mehmet Tuncay; Küçükakkaş, Okan; Yurdakul, Ozan Volkan; Alkan Melikoğlu, Meltem; Ayhan, Fikriye Figen; Bodur, Hatice; Çaliş, Mustafa; Çapkin, Erhan; Devrimsel, Gül; Gök, Kevser; Hizmetli, Sami; Kamanlı, Ayhan; Kocabaş, Hilal; Kutluk, Öznur; Şen, Nesrin; Şendur, Ömer Faruk; Toprak, Murat; Tolu, Sena; Tuncer, Tiraje
    Objectives: In this study, we aimed to evaluate the effect of gender on clinical findings, disease activity, functional status and quality of life in patients with axial involvement in Turkey. Methods: Patients with PsA who met the CASPAR classification criteria were enrolled consequently in this cohort. Turkish League Against Rheumatism (TLAR)-Network was formed with the participation of 25 centres. The demographic variables, fatigue, diagnostic delay, the beginning of peripheral arthritis, enthesitis, dactylitis and spine involvement, inflammatory low back pain, BASFI, HAQ, HAQ-s, visual analogue scale-pain (VAS-pain), anxiety, depression and disease activity parameters (ESR, DAS28, BASDAI) were recorded. Axial involvement was assessed according to clinical and radiological data according to modified New York (MNYC) or Assessment of SpondyloArthritis international Society (ASAS) criteria. Results: A total of 1018 patients with PsA were included in this study. Of the 373 patients with axial involvement, 150 were male (40.2%) and 223 (59.8%) were female. Spondylitis was detected in 14,7% of men and 21,9% of women in all patients. Pain score (VAS) (p < .002), fatigue (p < .001), ESR (p < .001), DAS28 (p < .001), BASDAI score (p < .001), PsAQoL (p < .001), HAQ score (p < ,01), HAQ-S score (p < .001), anxiety (p < .001), depression (p < .024), FACIT (p < .001) and FiRST (p < .001) scores were statistically significantly worse in women than males with axial PsA. However, quality of life was better (p < .001) and PASI score (p < .005) were statistically worse in male patients than in female patients with axial involvement. Conclusion: This study has shown that the burden of disease in axial PsA has significant difference between genders. Disease activity, physical disability, functional limitation, depression and anxiety scores were higher in female patients, while quality of life were better and PASI score were higher in male patients. Therefore, we suggest that new strategies should be developed for more effective treatment of axial PsA in female patients.