Browsing by Author "Safieh-Garabedian, Bared"
Now showing items 1-10 of 10
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Arrhythmogenic calmodulin E105A mutation alters cardiac RyR2 regulation leading to cardiac dysfunction in zebrafish
Da'as, Sahar I; Thanassoulas, Angelos; Calver, Brian L; Beck, Konrad; Salem, Rola; Saleh, Alaaeldin; Kontogianni, Iris; Al-Maraghi, Ali; Nasrallah, Gheyath K; Safieh-Garabedian, Bared; Toft, Egon; Nounesis, George; Lai, F Anthony; Nomikos, Michail... more authors ... less authors ( Wiley , 2019 , Article)Calmodulin (CaM) is a universal calcium (Ca )-binding messenger that regulates many vital cellular events. In cardiac muscle, CaM associates with ryanodine receptor 2 (RyR2) and regulates excitation-contraction coupling. ... -
The Arrhythmogenic E105A CAM Mutation Dysregulates Normal Cardiac Function in Zebrafish by Altering CAM-Ca2+ and CAM-RyR2 Interactions
Nomikos, Michail; I. Da’as, Sahar; Thanassoulas, Angelos; Salem, Rola; L. Calver, Brian; Saleh, Alaaeldin; Al-Maraghi, Ali; K. Nasrallah, Gheyath; Safieh-Garabedian, Bared; Toft, Egon; Nounesis, George; Lai, F. Anthony... more authors ... less authors ( Elsevier , 2019 , Article)Calmodulin (CaM) is a multifunctional calcium (Ca2+)-binding messenger that directly interacts with the cardiac ryanodine receptor 2 (RyR2), a large transmembrane Ca2+ channel that mediates Ca2+ release from the sarcoplasmic ... -
Calmodulin Mutations Associated with Congenital Cardiac Disease Display Novel Biophysical and Biochemical Characteristics
Nomikos, Michail; Thanassoulas, Angelos; L. Calver, Brian; Beck, Konrad; Vassilakopoulou, Vyronia; Buntwal, Luke; Konotgianni, Iris; Smith, Adrian; Safieh-Garabedian, Bared; Livaniou, Evangelia; Steen Toft, Egon; Nounesis, George... more authors ... less authors ( Elsevier , 2018 , Article)Calmodulin (CaM) is a cytoplasmic multifunctional calcium (Ca2+)-binding messenger that interacts with the cardiac ryanodine receptor (RyR2), a large transmembrane Ca2+ channel that mediates Ca2+ release from the sarcoplasmic ... -
Cerebrospinal fluid α-synuclein species in cognitive and movements disorders
Constantinides, Vasilios C.; Majbour, Nour K.; Paraskevas, George P.; Abdi, Ilham; Safieh-Garabedian, Bared; Stefanis, Leonidas; El-Agnaf, Omar M.; Kapaki, Elisabeth... more authors ... less authors ( Multidisciplinary Digital Publishing Institute (MDPI) , 2021 , Article)Total CSF α-synuclein (t-α-syn), phosphorylated α-syn (pS129-α-syn) and α-syn oligomers (o-α-syn) have been studied as candidate biomarkers for synucleinopathies, with suboptimal specificity and sensitivity in the ... -
Cerebrospinal α-Synuclein Oligomers Reflect Disease Motor Severity in DeNoPa Longitudinal Cohort
Majbour, Nour K.; Abdi, Ilham Y.; Dakna, Mohammed; Wicke, Tamara; Lang, Elisabeth; Ali Moussa, Houda Y.; Thomas, Mercy A.; Trenkwalder, Claudia; Safieh-Garabedian, Bared; Tokuda, Takahiko; Mollenhauer, Brit; El-Agnaf, Omar... more authors ... less authors ( Wiley , 2021 , Article)Background: Tangible efforts have been made to identify biomarkers for Parkinson's disease (PD) diagnosis and progression, with α-synuclein (α-syn) related biomarkers being at the forefront. Objectives: The objectives of ... -
Defective Interaction of Cam with RyR2 Cam-Binding Pocket Might Contribute to Arrhythmogenic Cardiac Disease
Nomikos, Michail; Thanassoulas, Angelos; Vassilakopoulou, Vyronia; L. Calver, Brian; Livaniou, Evangelia; Safieh-Garabedian, Bared; Toft, Egon; Nounesis, George; Lai, F. Anthony... more authors ... less authors ( Elsevier , 2020 , Article)Ryanodine receptor 2 (RyR2) is a large transmembrane calcium (Ca2+) release channel that mediates Ca2 release from the sarcoplasmic reticulum to activate cardiac muscle contraction. Calmodulin (CaM) regulation of RyR2 is ... -
Essential Role of Sperm-Specific PLC-Zeta in Egg Activation and Male Factor Infertility: An Update.
Saleh, Alaaeldin; Kashir, Junaid; Thanassoulas, Angelos; Safieh-Garabedian, Bared; Lai, F Anthony; Nomikos, Michail... more authors ... less authors ( Frontiers Media , 2020 , Article Review)Sperm-specific phospholipase C zeta (PLCζ) is widely considered to be the physiological stimulus responsible for generating calcium (Ca) oscillations that induce egg activation and early embryonic development during mammalian ... -
Ginsenoside Rb1 inhibits fibrillation and toxicity of alpha-synuclein and disaggregates preformed fibrils
Ardah, Mustafa T.; Paleologou, Katerina E.; Lv, Guohua; Menon, Sindhu A.; Abul Khair, Salema B.; Lu, Jia-Hong; Safieh-Garabedian, Bared; Al-Hayani, Abdulmonem A.; Eliezer, David; Li, Min; El-Agnaf, Omar M.A.... more authors ... less authors ( Elsevier , 2015 , Article)Compelling evidence indicates that α-synuclein (α-syn) aggregation plays a central role in the pathogenesis of Parkinson's disease (PD) and other synucleinopathies. Identification of compounds that inhibit or reverse the ... -
Oligomeric and phosphorylated alpha-synuclein as potential CSF biomarkers for Parkinson’s disease
Majbour, Nour K.; Vaikath, Nishant N.; van Dijk, Karin D.; Ardah, Mustafa T.; Varghese, Shiji; Vesterager, Louise B.; Montezinho, Liliana P.; Poole, Stephen; Safieh-Garabedian, Bared; Tokuda, Takahiko; Teunissen, Charlotte E.; Berendse, Henk W.; van de Berg, Wilma D. J.; El-Agnaf, Omar M. A.... more authors ... less authors ( BioMed Central , 2016 , Article)Background Despite decades of intensive research, to date, there is no accepted diagnosis for Parkinson’s disease (PD) based on biochemical analysis of blood or CSF. However, neurodegeneration in the brains of PD patients ... -
Pyridoxine non-responsive p.R336C mutation alters the molecular properties of cystathionine beta-synthase leading to severe homocystinuria phenotype
Al-Sadeq, Duaa W.; Thanassoulas, Angelos; Islam, Zeyaul; Kolatkar, Prasanna; Al-Dewik, Nader; Safieh-Garabedian, Bared; Nasrallah, Gheyath K.; Nomikos, Michail... more authors ... less authors ( Elsevier , 2022 , Article)The prevalence of homocystinuria in Qatar is 1:1800, mainly due to a founder missense mutation p.R336C. • The cystathionine beta-synthase (CBS) R336C mutant was bacterially expressed, purified and its molecular properties ...