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ESMERCE, BÜŞRA

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ESMERCE

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BÜŞRA

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    Publication
    Effects of short-term uridine treatment on blood-brain barrier integrity and brain edema in li-pilocarpine-induced status epilepticus
    (Wiley, 2023-01-01) Aydın, Birnur; Esmerce, Buşra Öcalan; ÇAKIR, AYŞEN; ESMERCE, BÜŞRA; KOÇ, CANSU; Koç, Cansu; Tuncak, Şüeda; TUNÇAK, SÜEDA; Cansev, Mehmet; CANSEV, MEHMET; Alkan, Tulin; ALKAN, TÜLİN; AAH-1792-2021; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Fizyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Farmakoloji Anabilim Dalı.; 0000-0002-8193-474X; 0000-0003-2918-5064; 0000-0001-6466-5042; LFV-6689-2024; M-9071-2019; A-6819-2018; AAH-1734-2021; AAH-1734-2021; A-6819-2018; LFV-6689-2024; AAH-1792-2021
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    Effects of uridine administration on hippocampal matrix metalloproteinases and their endogenous inhibitors in rem sleep-deprived rats
    (Elsevier, 2022-10-15) Çakır, Ayşen; Esmerce, Büşra Öcalan; Aydın, Birnur; Koç, Cansu; Cansev, Mehmet; Suyen, Güldal Güleç; Kahveci, Nevzat; ÇAKIR, AYŞEN; ESMERCE, BÜŞRA; KOÇ, CANSU; CANSEV, MEHMET; KAHVECİ, NEVZAT; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Fizyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Farmakoloji Anabilim Dalı.; 0000-0002-6097-5585; 0000-0003-0841-8201; A-6819-2018; M-9071-2019; AAG-7070-2021; LGY-8580-2024; N-9927-2019
    Rapid eye movement (REM) sleep is associated with synaptic plasticity which is considered essential for longterm potentiation (LTP). The composition of extracellular matrix (ECM), in part, plays a role in REM sleepassociated synaptic functioning. The objective of this study was to investigate the effects of uridine administration on levels of matrix metalloproteinases (MMPs) and their endogenous inhibitors (TIMPs) in rats subjected to REM sleep deprivation (REMSD). REMSD was induced by modified multiple platform method for 96-hour. Rats were randomized to receive either saline or uridine (1 mmol/kg) intraperitoneally twice a day for four days. Rats were then decapitated and their hippocampi were dissected for analyzing the levels of MMP-2, MMP3, MMP-9, TIMP-1, TIMP-2 and TIMP-3 by Western-blotting and the activities of MMP-2 and MMP-9 by Gelatin zymography. REMSD resulted in reduced levels of MMP-3, MMP-9, TIMP-3 and activity of MMP-9 in salinetreated rats, while uridine treatment significantly enhanced their impairment. TIMP-1 was enhanced following REMSD but uridine treatment had no significant effect on TIMP-1 levels. MMP-2, TIMP-2 levels and MMP-2 activity were not affected by either REMSD or uridine administration. These data show that REMSD significantly affects ECM composition which is ameliorated by uridine administration suggesting a possible use of uridine in sleep disorders.