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GÖNCÜ, BEYZA SERVET

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BEYZA SERVET
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GÖNCÜ
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Now showing 1 - 10 of 73
  • PublicationMetadata only
    Nano- and Micro-Encapsulation Techniques and Applications
    (2021-01-01T00:00:00Z) Göncü, Beyza Servet; Yücesan, Emrah; GÖNCÜ, BEYZA SERVET; YÜCESAN, EMRAH
    Microencapsulation has been the most frequently used technique for several different disciplines such as cell-based therapies and/or transplantation. Technology is based on the idea of combining and coating material or isolating it from an external source. Microencapsulation may be performed with different materials and, among natural biocompatible materials, alginate-based microencapsulation technique is the most appropriate material for microencapsulation. The structural components of alginate materials are the derivatives of alginic acid, which is found in brown algae as an intercellular gel matrix. This alginate is preferred for clinical applications due to its safety in human studies. Therefore, the choice and the combined system need to be carefully optimized to achieve biocompatible application through cell microencapsulation especially for long term. Specifications of alginate such as primary source, isolation process, viscosity, and purity contribute to improve its biocompatibility. Clinically, cell microencapsulation is the major contribution to the field of transplantation by its technique and additionally provides local immune isolation. This chapter discusses the potential benefits of clinically suitable alginates and their applications. This promising technology may highlight its considerable potential for patients that require transplantation and/or replacement therapy in the future.
  • PublicationMetadata only
    Parathyroid Glands
    (2022-07-01T00:00:00Z) Göncü, Beyza Servet; GÖNCÜ, BEYZA SERVET
    The parathyroid tissue is composed of the chief, oxyphil, and water-clear cells. The cell type in each parathyroid gland is highly heterogeneous between different pathologies. The parathyroid oxyphil cells are markedly increased in secondary hyperparathyroidism due to chronic kidney diseases. These cells include more eosinophil than oxyphil cells, but they are closer in size to the chief cells. Studies reported that the oxyphil cells are derived from chief cells, and this presents another cell type that occurs as -transitional oxyphilic cells.- As is known, calcium-sensing receptor (CaSR) is expressed abundantly in the chief cells. Expression of CaSR is elevated in disparate parathyroid tissues, which is possibly related to differential expression levels of parathyroid-specific transcription factors including GCM2 (Glial Cells Missing Transcription Factor 2), MAFB (V-maf musculoaponeurotic fibrosarcoma oncogene homolog B), GATA3 (GATA Binding Protein 3), RXR (The retinoid X receptor), and even VDR (Vitamin D Receptor). The pathways that connect CaSR to parathyroid cell proliferation are precisely not known yet. Evaluation of oxyphil and chief cells of parathyroid glands and their differential expression patterns are important to understand the parathyroid function and its behavioral changes due to related diseases. This chapter presents a summary of the current literature on the cell type distribution of parathyroid and pathophysiology by comparing the expression patterns.
  • PublicationMetadata only
    Expanding Clinical Phenotype of TRAPPC12-Related Childhood Encephalopathy: Two Cases and Review of Literature.
    (2020-05-05T00:00:00Z) Aslanger, AD; Goncu, B; Demiral, E; Sonmez-Sahin, S; Guler, S; Yucesan, Emrah; Iscan, A; Saltik, S; Yesil, G; GÖNCÜ, BEYZA SERVET; YÜCESAN, EMRAH
  • PublicationMetadata only
    NEW TRANSPORT SOLUTION FOR PARATHYROID ALLOTRANSPLANTATION
    (2017-09-01) GONCU, Beyza; OZDEMIR, Burcu; Basoglu, HARUN; KANDAS, Nur Ozten; Akbas, FAHRİ; TOKA, Cemile Kesgin; YUCESAN, Emrah; Kazancioglu, RÜMEYZA; AYSAN, Erhan; GÖNCÜ, BEYZA SERVET; BAŞOĞLU, HARUN; AKBAŞ, FAHRİ; KAZANCIOĞLU, RÜMEYZA
  • PublicationMetadata only
    Evaluation of Parathyroid allo-transplantation with the Presence of Auto-CASR Antibody
    (2022-05-01) Selepcioğlu Kaya H.; Göncü B. S.; Ersoy Y. E.; Akçakaya A.; SELEPCİOĞLU KAYA, HARİKA; GÖNCÜ, BEYZA SERVET; ERSOY, YELIZ EMINE; AKÇAKAYA, ADEM
  • PublicationMetadata only
    Moleküler Biyoloji Güncel Araştırma Teknikleri
    (2022-03-01T00:00:00Z) Göncü, Beyza Servet; GÖNCÜ, BEYZA SERVET
  • PublicationMetadata only
    PS-01: Zamana bağlı everolimus uygulamasının dişi ve erkek farelerde P-glikoprotein ekspresyonuna etkisi
    (2019-11-03T00:00:00Z) Öztürk, Ferdi; Yasemin Kübra, Akyel; ÖZTÜRK, DİLEK; ÖZTÜRK, NARİN; PALA KARA, ZELİHA; OKYAR, ALPER; ÖZTÜRK CİVELEK, DİLEK; GÖNCÜ, BEYZA SERVET
  • PublicationMetadata only
    Paratiroit Hücre İzolasyonunda Enzimatik ve Mekanik İzolasyon Yöntemlerinin Karşılaştırılması
    (2018-05-04T00:00:00Z) Yücesan, Emrah; GÖNCÜ, BEYZA SERVET; YÜCESAN, EMRAH
  • PublicationMetadata only
    Identification and functional characterization of a novel homozygous mutation in KCNMA1 encoding voltage and calcium sensitive potassium channel is associated with dyskinesia, epilepsy, intellectual disability, cerebellar and corticospinal tract atrophy
    (2020-12-01T00:00:00Z) Servet Göncü, Beyza; Aslanger, Ayça Dilruba; Özgül, Cemil; Hasanoğlu, Sevde; Yeşil Sayın, Gözde; YÜCESAN, EMRAH; GÖNCÜ, BEYZA SERVET
    Introduction: KCNMA1 encodes, the alpha subunit of the voltage, and calcium-sensitive potassium channel, predominantly expressed in the central nervous system. Therefore abnormal function in this gene may occur neurological conditions.Materials and Methods: We report 15-year-old patient who was born at term with healthy conditions. Motor signals were delayed, and also seizures started at the age of 18 months. EEG revealed generalized spike-wave activities. Brain MRI performed, atrophy of the cerebellum was detected. Recent clinical examination; contractures on the large joints, and dyskinetic tremor. Whole exome sequencing (WES) was performed and in-slico analyses were conducted. MCF7 and 293T cells transfected with either wild-type or mutant expression vectors. Cellular distribution was determined by immunofluorescence. Functional analysis was performed using electrophysiological approach based on whole-cell patch-clamp.Results: WES revealed homozygous variation (NM_001161352.1:c.1372C>T, p.Arg458Ter). The variant was not observed in publicly available or in-house databases. Immunofluorescent staining revealed that novel variant is not interfering with the synthesis of KCNMA1 however mutation exhibit dominant-negative effect on cell viability when compared to wild-type. 293T and MCF7 cells transfected with homozygous p.Arg458Ter mutation showed markedly increased KCNMA1 currents compared to controls on patch-clamp recording, and these data support loss-of-function effect of all KCNMA1 mutants.Conclusions: Herein we report a 15-year old boy who has neurological conditions. A novel homozygous stop-gain mutation detected by WES and confirmed by conventional sequencing. Afterward, functional characterization was conducted using two step-approach, immunostaining to detect subcellular effect of the variation and patch-clamp to detect a difference between mutant vs. wild-type of the protein. Homozygous mutation was considered as causative for this clinical condition. This study was supported by Bezmialem Vakif University, Scientific Research Projects Unit, Project No:2.2019/7.
  • PublicationMetadata only
    Mikroenkapsüle edilen paratiroid hücrelerinin in-vitro optimizasyonu
    (2017-12-01) YUCESAN, Emrah; GONCU, Beyza; BAŞOĞLU, HARUN; ÖZTEN KANDAŞ, NUR; ERSOY, YELİZ EMİNE; AKBAŞ, FAHRİ; AYŞAN, MUSTAFA ERHAN; BAŞOĞLU, HARUN; GÖNCÜ, BEYZA SERVET; ÖZTEN KANDAŞ, NUR; ERSOY, YELIZ EMINE; AKBAŞ, FAHRİ; AYŞAN, MUSTAFA ERHAN