19 results on '"Özen, Yasemin"'
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2. TOPLUMSAL İLETİŞİMİN KESİŞME NOKTASI / ÇEVRECİ SANAT
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ÖZEN, Yasemin, primary
- Published
- 2023
- Full Text
- View/download PDF
3. Investigation the Relationship of Autism Spectrum Disorder and FOXP2, GRIN2B, KATNAL2, GABRA4 Genes
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YALÇINTEPE, Sinem, GÖRKER, Işık, DEMİR, Selma, ATLI, Emine İkbal, ATLI, Engin, TOZKIR, Hilmi, SÜT, Necdet, ÖZEN, Yasemin, EKER, Damla, MAİL, Çisem, GÜLER, Hazal SEZGİNER, ZHURI, Drenushe, and GURKAN, Hakan
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GABRA4 ,Next generation sequencing ,FOXP2 ,KATNAL2 ,Autism spectrum disorder ,GRIN2B ,Research Article - Abstract
Introduction: Autism spectrum disorder is a genetically and phenotypically heterogeneous group. Genetic studies carried out to date have suggested that both common and rare genetic variants play a role in the etiology of this disorder. In our study, we aimed to investigate the effect of FOXP2, GRIN2B, KATNAL2 and GABRA4 gene variants in the pathogenesis of autism spectrum disorder. Method: In our prospectively planned study, all exons and exon-intron junctions of FOXP2, GRIN2B, KATNAL2 and GABRA4 genes were screened by next generation sequencing analysis in 96 patients who diagnosed with autism spectrum disorder. Results: In our study, the average age was 10.1 and the male/female ratio was 75/21. Pathogenic or likely pathogenic variants were not detected in FOXP2, GRIN2B, KATNAL2 and GABRA4 genes, however, 69 intronic variants of unknown clinical significance were detected in 50 cases (52%). Among those, 26 were in the GABRA4 gene, 22 in the FOXP2 gene, 13 in the KATNAL2 gene, and 8 in the GRIN2B gene. Twenty three of these 69 variants were novel that were not previously reported in the literature. Conclusion: In our study, we could not identify a relationship between the autism spectrum disorder and FOXP2, GRIN2B, KATNAL2 and GABRA4 genes. Identifying genetic risk factors that play a role in the etiopathogenesis of autism spectrum disorder will contribute significantly to understanding the molecular mechanisms of the disease and the development of new treatment strategies. In this context, comprehensive molecular genetic studies such as whole exome or whole genome sequencing are required with higher number of cases in different populations.
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- 2021
4. SECONDARY ANALYSIS ON GRAPHIC DESIGN PACKAGING EXAMPLES: DORITOS CHIPS PACKAGING EXAMPLE
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ÖZEN, YASEMİN, primary
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- 2021
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5. Investigation of the Relationship Between Genome Wide Association Studies-derived Polymorphisms and Differentiated Thyroid Cancer Risk in a Turkish Population.
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Demir, Selma, Gürkan, Hakan, Çelik, Mehmet, Sezer, Atakan, Eker, Damla, Güldiken, Sibel, Süt, Necdet, Tozkır, Hilmi, Göncü, Ebru, Bülbül, Buket Yılmaz, Salt, Semra Aytürk, Özen, Yasemin, Atlı, Engin, Sipahi, Tammam, and Palabıyık, Orkide
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THYROID cancer ,GENOME-wide association studies ,DISEASE risk factors ,MULTIPLE regression analysis ,LOGISTIC regression analysis ,POLYMERASE chain reaction - Abstract
Copyright of Gazi Medical Journal is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2021
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6. Sendromik Olmayan Konjenital Yarık Damak-Dudak Bulunan Hastalarda Kopya Sayısı Varyasyonlarının Belirlenmesi.
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Atlı, Emine İkbal, Atlı, Engin, Yalçıntepe, Sinem, Demir, Selma, Özen, Yasemin, and Gürkan, Hakan
- Abstract
Copyright of Osmangazi Journal of Medicine / Osmangazi Tip Dergisi is the property of Eskisehir Osmangazi University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
- Full Text
- View/download PDF
7. Stress-induced proliferation of PANC-1 cells in the perioperative period: A luciferase-based assay and its advances in proliferation studies
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Özen, Yasemin and Troelsen, Jesper
- Abstract
Den mest effektive behandling for patienter med solide kræft tumorer er kirurgi. Trods kurative kirurgiske indgreb opstår postoperative metastaser ofte, og disse er forbundet med høj mortalitet og morbiditet. Den perioperative stress respons forårsager biologiske forstyrrelser, som kan fremme tilbagefald. Disse forstyrrelser er induceret af neurologiske og immunologiske forandringer, som er associeret med trauma. Det er accepteret, at cytokinprofilen, grundet kirurgisk induceret inflammation, og produktionen af katekolaminer og prostaglandiner, grundet kirurgisk forløst ”flight-or-fight” respons, bidrager til dette tilbagefald. Selvom, metastasering kan blive forklaret gennem forandringer i den perioperative periode, er en direkte forbindelse mellem stressresponset og forandringer hos kræftcellen klart. Det er derfor formålet med dette studie at undersøge om, proliferation hos kræftceller bliver påvirket af dette kirurgisk induceret stress respons. Dette er undersøgt ved at udvikle en luciferase-baseret assay ved hjælp af CRISPR/cCas9 genom redigering teknologi, hvorved celle proliferation kan blive målt i reel tid uden behov for at høste cellerne. Formålet var at indsætte gener, som koder for Zeocin resistens og udskilt luciferase med deres respektive promotorer hEF1 og CMV, i safe harbor sitet AAVS1 hos PANC-1 celler. Transfektion og selektion resulterede i en klon, kaldet PANC-LUC1, hvori hele indsatsen var lokaliseret i AAVS1 sitet. Forholdet mellem celle antal og det producerede udskilte luciferase blev undersøgt. Der blev fundet en lineær sammenhæng mellem disse. PANC-1LUC celler blev tilsat medie med serum fra 30 patienter diagnosticeret med kræft i kolon, som havde gennemgået en operation. Serum fra patienter blev taget en dag før og efter operationstidspunktet. I to uafhængige forsøg blev der fundet en forøget proliferation hos PANC-1LUC celler, som blev udsat for postoperativt serum sammenlignet med preoperativt serum. Det nyudviklede assay og dets reproducerbarhed blev også undersøgt. Resultater viste, at selvom det overordnede resultat ikke ændrede sig mellem eksperimenterne, var patientvise resultater anderledes mellem eksperimenterne. Der blev konkluderet, at resultater opnået i dette studie, støtter at det perioperative stress påvirker celle proliferation, og at det udviklede luciferase-baseret assay kan blive brugt i proliferations studier, dog med justeringer. Det er stadig uvist, hvilke komponenter i postoperativt serum forårsager forhøjet proliferation hos PANC-1 celler., Surgery is the main, often curative, treatment for patients with solid cancers. However, despite curative surgical resection postsurgical development of metastases is frequent and often correlated with high mortality and morbidity. The recurrence of the tumor distant from the primary location, can partly be explained by surgical induced stress response. The perioperative stress response results in biological perturbations, that might promote disease recurrence. These perturbations are induced by the neurological and immunological changes, that are associated with trauma. It is accepted that, changes in the cytokine profile, due to surgery induced inflammation, and production of catecholamines and prostaglandins, due to surgery induced “fight-or-flight” response, contribute to this unfortune relapse. Although, recurrence can be explained by these changes during the perioperative period, a direct association between this stress response and the cancer cell behavior remains unanswered. It is therefore, aimed to investigate, if proliferation of cancer cells directly is affected by this stress response. This is accomplished by developing a luciferase-based assay, with the help of CRISPR/Cas9 genome editing approach, in which the cancer cell proliferation can be measured in real time without harvesting the cells. Genes encoding Zeocin resistance and secreted luciferase with their respective promoters hEF1 and CMV, was aimed to be inserted at the AAVS1 safe harbor locus in PANC-1 cells. The transfection and selection resulted in one clone, called PANC-1LUC, with the whole insert at the AAVS1 site. The relationship between cell number and produced secreted luciferase was investigated, and a linear relationship between luciferase and cell number was found. The PANC-1LUC cells were subjected to medium with serum from 30 colorectal cancer patients, that have undergone surgery for colorectal cancer. Serum from the patients was obtained one day prior and one day after surgery. It was found that postoperative serum stimulated PANC-1LUC cells had enhanced proliferation compared to preoperative serum in two independent experiments. The assay and its ability to reproduce the same results was investigated. The results showed, that even though overall results did not change between the experiments, the results of the single patient samples changed among the experiments. In conclusion, the results obtained in this study, support that the perioperative stress affect cell proliferation and that the developed luciferase-based assay can be used in such proliferation studies with adjustments. Still, it is unclear the exact unit(s) in postoperative serum, that results in increased proliferation of PANC-1 cells.
- Published
- 2019
8. BASMA SANATI USTASI NASRA ŞİMMESHİNDİ VE İKONOGRAFİ
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ÖZEN, YASEMİN, primary
- Published
- 2020
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9. SİNEMA AFİŞLERİNDE ARMONİ KAVRAMININ ANALİZİ: YEŞİLÇAM FİLM AFİŞLERİ ÖRNEKLEMİ
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ÖZEN, Yasemin, primary
- Published
- 2020
- Full Text
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10. Yeşim Ustaoğlu sinemasında toplumsal cinsiyet ve kadın
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Özen, Yasemin, Ersöz Karakulakoğlu, Selva, İletişim Bilimleri Ana Bilim Dalı, Maltepe Üniversitesi, Sosyal Bilimler Enstitüsü, and Özen, Yasemin
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Director ,Toplumsal cinsiyet ,Kadının temsili ,İletişim Bilimleri ,Communication ,Feminizm ,Gender ,Feminism ,Representation of woman ,Sahne ve Görüntü Sanatları ,Woman ,Gender identity ,Yeşim Ustaoğlu ,Sex ,Women ,Communication Sciences ,Communication means ,Cinema ,Independent cinema ,Sinema ,Kadın ,Ustaoğlu, Yeşim ,Performing and Visual Arts - Abstract
Tez çalışmasında, toplumsal cinsiyet ve kadının temsilinin etkisi, bir iletişim aracı olarak sinema üzerinden, topluma yansıyabilen olumlu ya da olumsuz etkilerin neler olabileceği, bu tezde incelenmiştir. Kadın bir yönetmen olarak Yeşim Ustaoğlu ve sineması, filmlerinde Toplumsal Cinsiyet ve kadını ele aldığı için, bu araştırmada özellikle seçilmiş, son dört film birbiriyle olan bağlantıları ve içerdikleri mesajlar açısından incelenmeye alınmıştır. Tezin ilk bölümünde, toplumda yer alan bireylerin ne gibi özelliklere sahip olması gerektiğini ve nasıl tanımlandığını, toplum tarafından yaratılan pozisyonların nasıl oluştuğu, bunu oluşturan unsurlarda etnik kökeni, aidiyet gibi kavramların insanlar üzerindeki etkileri araştırılmıştır. Sosyal hayat, statü ve rollere göre nasıl düzenlendiği incelenmiştir. Toplumsal normların davranışların toplum tarafından belirlenen kurallarla nasıl çevrelendiği, sosyal hayatın normal akış içerisinde nasıl devam ettiği, toplumsal cinsiyet rollerine uygun tutum ve davranışlara nasıl dönüştüğü, bu davranış biçimlerinin baskılanan yönlerle bireyin “çoğunluk” dediğimiz toplum tarafından kabul ve makbul görülen ortak davranışların esaretine nasıl dönüştüğü araştırılır. Kadının geleneksel ve modern toplumlardaki yerini, Cumhuriyet döneminde kadının temsiline ilişkin kazanımların ve etkilerinin neler olduğu, bu araştırmada ayrıca tarihsel olarak incelenirken,1950 ve 1980’li dönemlerde kadının kimlik olarak ulaştığı evreler bu bölümde ele alınmıştır. Tezin ikinci bölümünde, feminist kuramcılarla desteklenen Toplumsal Cinsiyete ait kavramlar, toplum tarafından icat edilen ve sonra ona inanılarak yürüyen alışkanlıkları ve davranışların kaynağı üzerinde durulur. Bir ideoloji olarak feminizmin Dünyada ve Türkiye’deki etkileri bu bölümde araştırılırken, etkili bir iletişim aracı olan sinemanın kitleleri ve toplumları farkına varmadan istenilen ideoloji ile nasıl etki altında bıraktığı, araştırmanın bu bölümünde incelenmiştir. Sinemada cinsiyet olgusunun nasıl dizayn edildiği, kadın ve erkek olgusunun zamanla toplumda nasıl etkin bir role ve statüye dönüştüğü bu bölümde ele alınmıştır. Tezin üçüncü ve son bölümünde, Yeşim Ustaoğlu sineması başta belirtilen kuramlar çerçevesinde ele alınarak incelenmiş. Yönetmenin özellikle son dört filmi olan Bulutları Beklerken (1997), Pandora’nın Kutusu (2005), Araf (2011) ve Tereddüt (2017) filmleri çalışmada örnek olarak ele alınıp incelenmiştir. İnceleme, filmlerin oyuncularından başlayarak, kadının ve erkeğin filmde temsil edilme biçimi, kadını özgürleştiren ya da tutsaklaştıran sahneleri, toplumsal cinsiyet içeren sahneleri söz konusu kriterler ölçüsünde değerlendirmeye alınarak, ortak bir ölçü getirilmiştir. Filmleri ölçmek ve değerlendirebilmek için geliştirilen bu model sayesinde yönetmenin filmleri, yapılış sırasına göre birbirleri ile kıyaslanmış, bu sayede toplumsal cinsiyete ve kadın temsiline ilişkin çeşitli verilere ve istatistiklere ulaşılmıştır. Sinema etkili bir iletişim aracı olarak, toplumlar üzerindeki olumlu ya da olumsuz etki yaratır., This thesis includes a review of the impact of gender and female representation, the possible positive and negative impacts of this representation that can be reflected on the society via cinema as a means of communication. As a female director, Yeşim Ustaoğlu and her cinema have especially been chosen for this review since her films comprise information about the subject, and her last four films have been discussed in terms of their relation to each other and the messages they convey. In the first part of the thesis, what characteristics should be possessed by individuals in the society and how these characteristics are described, how the positions created by the society are formed, and the impact of concepts like ethnicity and belonging on people are investigated. How social life is organized according to roles and status is examined. How the social norms and behaviours are surrounded by the rules determined by the society, how social life goes on in its normal flow, how it converts to attitudes and behaviours appropriate for gender roles, how these types of suppressed behaviours turn into the slavery of common behaviours accepted and liked by the society which we call “majority” were also investigated. The place of woman in traditional and modern societies, the gainings of the representation of women in the Republican period and their impacts were also examined historically in this study. The stages that women reached as identity in 1950’s and 1980’s are discussed in this section. The second part of the thesis focuses on these concepts that are supported by feminist theoreticians, the origin of the habits and behaviours invented and then continued believeingly by the society. While the impacts of feminism on the world and on Turkey as an ideology are researched in this part, how cinema as an efficient means of communication influences the masses and societies ideologically without awareness is also discussed. How the gender in cinema is designed and how female and male phenomenon transformed into an active role and status in society in time are also examined in this part. In the third and last part of the thesis, Yeşim Ustaoğlu’s cinema is handled and analyzed within the frame of theories described at the beginning. Especially, the last four films of the director namely Waiting for the Clouds (1997), Pandora’s Box (2005), Araf- Somewhere in Between (2011) and Clair Obscure (2017) are taken as a sample for the study and discussed. Discussion starts with the characters of the films, then the way women and men are represented, the scenes that free or imprison woman, scenes that include gender are evaluated in accordance with the relevant criteria and a common measurement is brought forward. Through this model developed to measure and evaluate films, director’s films have been historically examined and compared to each other according to their status. Thus, various information and statistics have been reached regarding gender and women representation. Cinema as an efficient communication power has numerous effects on societies and makes a positive impact on those that live by traditional and modern codes and leads to the creation and survival of sound generations through the use of artistic and cultural tools.
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- 2017
11. Chromosomal Microarray Analysis in Turkish Patients with Unexplained Developmental Delay and Intellectual Developmental Disorders.
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GÜRKAN, Hakan, ATLI, Emine İkbal, ATLI, Engin, BOZATLI, Leyla, ALTAY, Mengühan ARAZ, YALÇINTEPE, Sinem, ÖZEN, Yasemin, EKER, Damla, AKURUT, Çisem, DEMİR, Selma, and GÖRKER, Işık
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CHROMOSOME analysis ,CHROMOSOME abnormalities ,DEVELOPMENTAL disabilities ,PEOPLE with intellectual disabilities ,GENOMICS ,MICROARRAY technology - Abstract
Introduction: Aneuploids, copy number variations (CNVs), and single nucleotide variants in specific genes are the main genetic causes of developmental delay (DD) and intellectual disability disorder (IDD). These genetic changes can be detected using chromosome analysis, chromosomal microarray (CMA), and next-generation DNA sequencing techniques. Therefore; In this study, we aimed to investigate the importance of CMA in determining the genomic etiology of unexplained DD and IDD in 123 patients. Method: For 123 patients, chromosome analysis, DNA fragment analysis and microarray were performed. Conventional G-band karyotype analysis from peripheral blood was performed as part of the initial screening tests. FMR1 gene CGG repeat number and methylation analysis were carried out to exclude fragile X syndrome. Results: CMA analysis was performed in 123 unexplained IDD/DD patients with normal karyotypes and fragile X screening, which were evaluated by conventional cytogenetics. Forty-four CNVs were detected in 39 (39/123=31.7%) patients. Twelve CNV variant of unknown significance (VUS) (9.75%) patients and 7 CNV benign (5.69%) patients were reported. In 6 patients, one or more pathogenic CNVs were determined. Therefore, the diagnostic efficiency of CMA was found to be 31.7% (39/123). Conclusion: Today, genetic analysis is still not part of the routine in the evaluation of IDD patients who present to psychiatry clinics. A genetic diagnosis from CMA can eliminate genetic question marks and thus alter the clinical management of patients. Approximately one-third of the positive CMA findings are clinically intervenable. However, the emergence of CNVs as important risk factors for multiple disorders increases the need for individuals with comorbid neurodevelopmental conditions to be the priority where the CMA test is recommended. [ABSTRACT FROM AUTHOR]
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- 2020
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12. Aşık-ı sadık : Hz. Hatice
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Özen, Yasemin and Özen, Yasemin
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- Muhammed, Peygamber, ö. 632, Muhammad, Prophet, d. 632, Hatice, Hz., d. 619, Hatice, Hz., ö. 619
- Published
- 2016
13. In Vitro Kültürde Zenginleştirilen Domuz Folikül ve Amniyon Hücrelerinden RNA Ekstraksiyonu
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ÖZALP, Gözde R., EVKE, Elif, ÖZOCAK, Elçin, BATMAZ,, ÖZEN, Yasemin, POLAT,, ÖZDEMİR, E. Sinem, SALCI,, and KAHVECİ, Zeynep
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Amniyotik hücre,foliküler hücre,domuz - Abstract
Amniyotik hücreler fetustan köken alan ve birçok farklı doku tipine dönüşebilen hücrelerdir. Bu durum hücrelerin birçok medikal uygulamada kullanılmasına olanak sağlar. Amniyotik ve foliküler sıvılar, prenatal tanıda çok etkili bir metod olan amniyosentez ile toplanmaya çalışılmıştır. Uygulamadan 48 saat sonra domuzlarda abortus görüldüğü ve toplanan hücre sayısının yeterli olmamasından dolayı, örneklerin steril şartlar altında operasyonla toplanmasına karar verilmiştir. Alınan hücreler yeterli sayı ve mitotik aktiviteye ulaşıncaya kadar hücre kültüründe geliştirilmiştir. Takibinde Trizol ile muamele edilerek hücrelerden RNA izolasyonu yapılmıştır. Amniyotik ve foliküler hücrelerin iyi kalitede üremelerine rağmen RNA izolasyonlarından alınan sonuçlar çok tatmin edici olmamıştır. RNA bütünlüğü agaroz jel elektroforezi ile kontrol edilmiştir. Elektroforez sonuçlarına göre foliküler hücrelerden elde edilen örneklere ait 28s, 18s ve 5s rRNA bantları gözlenirken, amniyotik hücre kültürlerine ait örneklerde hiç bant gözlenmemiştir. Bu sonuçlar domuza ait amniyotik ve foliküler hücrelerin in vitro ortamda üretilebildiğini göstermiştir. Ancak amniyon hücrelerine ait başarısız RNA izolasyonları açıklanamamaktadır. Amniyotik hücreler için hazırlanacak kültüre bazı zenginleştirmeler yapılabileceği yada izolasyon için daha farklı metotların kullanılabileceğini önerilebilir
- Published
- 2014
14. Ergenler İçin Okulda Öznel İyi Oluş Ölçeğinin Kısa Türkçe Versiyonunun Geçerlik ve Güvenirliği
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AKIN, Ahmet, primary, ÇETİN, Ramazan, additional, and ÖZEN, Yasemin, additional
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- 2016
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15. ÖĞRENCİ ÖZ-YETERLİK ÖLÇEĞİNİN TÜRKÇE FORMUNUN ERGENLER ÜZERİNDE GEÇERLİK VE GÜVE
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ÖZEN, Yasemin, primary
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- 2016
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16. 17q21.31 deletion including partially EFTUD2 gene detected by arrayCGH in a patient with Mandibulofacial dysostosis type Guion-Almeida.
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Atlı, Engin, Gürkan, Hakan, Özen, Yasemin, Atlı, Emine İkbal, Demir, Selma, and Yalçıntepe, Sinem
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ARACHNOID cysts ,AUDIOMETRY ,GENES ,INTELLECTUAL disabilities ,SEIZURES (Medicine) - Abstract
Aim: Mandibulofacial dysostosis type Guion-Almeida was characterized by microcephaly, a characteristic craniofacial appearance with upslanting palpebral fissures, microtia, preauricular and buccal tags and intellectual disability. EFTUD2 gene was found to cause a very distinct condition with phenotypic overlap with Treacher Collins syndrome, the mandibulofacial dysostosis type Guion-Almeida (MFDGA). Methods: G-banding karyotype performed using peripheral blood. TCOF1, POLR1C and POLR1D genes associated with Treacher Collins syndrome were studied by NGS method. Chromosomal microarray analysis was performed on the proband and her parents using Agilent Technologies 4x180K SurePrint G3 Human CGH+SNP Platform. Results: A 5 years old female referred us with Treacher Collins syndrome. She was born at 37th weeks of gestation with CS as weight 3200g. Her parents were nonconsanguineous and healthy. She had a 10 years old healty brother. The patient had speech delay, history of 4-5 seizures, convulsion and hypotonia. She had a dysmorphic features including long philtrum, broad nasal bridge, broad nasal root, bulbous nose, short neck, dysplastic ear, low nape hairline, micrognathia/retrognathia. The echocardiogram revealed as normal, cranial MR revealed arachnoid cysts. Hearing test results were normal. Chromosomal analysis and NGS analysis were evaluated as normal. A 207 kb copy number variation arr[GRCh37]17q21.31(42753313-42960557)×1 was identified in our patient. Her parents arrayCGH analyses revealed as normal. Conclusion: Our array CGH finding was reported extremely rare previously. We anticipate that the findings of our patient are due to deletion of 17q21.31 and loss of function of the EFTUD2 gene. [ABSTRACT FROM AUTHOR]
- Published
- 2019
17. Application of Next-Generation Sequencing Technology for CFTR Mutation Screening.
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Ulusal, Selma, Gürkan, Hakan, Toksoy, Güven, Özen, Yasemin, Vatansever, Ülfet, and Tozkır, Hilmi
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CYSTIC fibrosis transmembrane conductance regulator ,GENETIC mutation ,MEDICAL screening - Abstract
An abstract of the article "Application of Next-Generation Sequencing Technology for CFTR Mutation Screening," by Selma Ulusal and colleagues is presented.
- Published
- 2015
18. Investigation the Relationship of Autism Spectrum Disorder and FOXP2, GRIN2B, KATNAL2, GABRA4 Genes.
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Yalçintepe S, Görker I, Demir S, Atli Eİ, Atli E, Tozkir H, Süt N, Özen Y, Eker D, Mail Ç, Güler HS, Zhuri D, and Gurkan H
- Abstract
Introduction: Autism spectrum disorder is a genetically and phenotypically heterogeneous group. Genetic studies carried out to date have suggested that both common and rare genetic variants play a role in the etiology of this disorder. In our study, we aimed to investigate the effect of FOXP2, GRIN2B, KATNAL2 and GABRA4 gene variants in the pathogenesis of autism spectrum disorder., Method: In our prospectively planned study, all exons and exon-intron junctions of FOXP2, GRIN2B, KATNAL2 and GABRA4 genes were screened by next generation sequencing analysis in 96 patients who diagnosed with autism spectrum disorder., Results: In our study, the average age was 10.1 and the male/female ratio was 75/21. Pathogenic or likely pathogenic variants were not detected in FOXP2, GRIN2B, KATNAL2 and GABRA4 genes, however, 69 intronic variants of unknown clinical significance were detected in 50 cases (52%). Among those, 26 were in the GABRA4 gene, 22 in the FOXP2 gene, 13 in the KATNAL2 gene, and 8 in the GRIN2B gene. Twenty three of these 69 variants were novel that were not previously reported in the literature., Conclusion: In our study, we could not identify a relationship between the autism spectrum disorder and FOXP2, GRIN2B, KATNAL2 and GABRA4 genes. Identifying genetic risk factors that play a role in the etiopathogenesis of autism spectrum disorder will contribute significantly to understanding the molecular mechanisms of the disease and the development of new treatment strategies. In this context, comprehensive molecular genetic studies such as whole exome or whole genome sequencing are required with higher number of cases in different populations., Competing Interests: Conflict of Interest: The authors declare that there is no conflict of interest., (Copyright: © 2021 Turkish Neuropsychiatric Society.)
- Published
- 2021
- Full Text
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19. Chromosomal Microarray Analysis in Turkish Patients with Unexplained Developmental Delay and Intellectual Developmental Disorders.
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Gürkan H, Atli Eİ, Atli E, Bozatli L, Altay MA, Yalçintepe S, Özen Y, Eker D, Akurut Ç, Demır S, and Görker I
- Abstract
Introduction: Aneuploids, copy number variations (CNVs), and single nucleotide variants in specific genes are the main genetic causes of developmental delay (DD) and intellectual disability disorder (IDD). These genetic changes can be detected using chromosome analysis, chromosomal microarray (CMA), and next-generation DNA sequencing techniques. Therefore; In this study, we aimed to investigate the importance of CMA in determining the genomic etiology of unexplained DD and IDD in 123 patients., Method: For 123 patients, chromosome analysis, DNA fragment analysis and microarray were performed. Conventional G-band karyotype analysis from peripheral blood was performed as part of the initial screening tests. FMR1 gene CGG repeat number and methylation analysis were carried out to exclude fragile X syndrome., Results: CMA analysis was performed in 123 unexplained IDD/DD patients with normal karyotypes and fragile X screening, which were evaluated by conventional cytogenetics. Forty-four CNVs were detected in 39 (39/123=31.7%) patients. Twelve CNV variant of unknown significance (VUS) (9.75%) patients and 7 CNV benign (5.69%) patients were reported. In 6 patients, one or more pathogenic CNVs were determined. Therefore, the diagnostic efficiency of CMA was found to be 31.7% (39/123)., Conclusion: Today, genetic analysis is still not part of the routine in the evaluation of IDD patients who present to psychiatry clinics. A genetic diagnosis from CMA can eliminate genetic question marks and thus alter the clinical management of patients. Approximately one-third of the positive CMA findings are clinically intervenable. However, the emergence of CNVs as important risk factors for multiple disorders increases the need for individuals with comorbid neurodevelopmental conditions to be the priority where the CMA test is recommended., Competing Interests: Conflicts of interest: The authors declare that they have no competing interest., (Copyright: © 2020 Turkish Neuropsychiatric Society.)
- Published
- 2020
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