18 results on '"Erdoğan, Kadri Murat"'
Search Results
2. Evaluation of microRNA expression levels during the craving period of patients diagnosed with severe alcohol use disorder.
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Aşçibaşi, Kadir, Deveci, Artuner, Özyılmaz, Berk, Erdoğan, Kadri Murat, and Çakıroğlu, Elif
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SUBSTANCE abuse ,RESEARCH funding ,MICRORNA ,DESCRIPTIVE statistics ,DESIRE ,GENE expression profiling ,FIBROBLAST growth factors ,ALCOHOLISM ,COMPARATIVE studies ,DATA analysis software ,TRANSFERASES ,SYMPTOMS - Abstract
Background: The aim of this study is to compare the serum MicroRNA (miRNA) expression levels on the first day of hospitalization and at the end of the first month of treatment in patients with alcohol use disorder and severe craving symptoms. Through the obtained data, biological agents targeting microRNA for alcohol craving may be developed. Methods: The volunteer group consists of four patients diagnosed with severe alcohol use disorder. Sociodemographic and Clinical Information Form, DSM-5 Structured Clinical Interview-Clinical Version (SCID-5-CV), Penn Alcohol Craving Scale (PACS) were used as clinical assessment tools. Peripheral blood samples were obtained at the time of application and on the 30th day. miRNA isolation was performed. The expression levels of 2578 different mature human miRNAs were measured. Results: The miRNAs showing statistically significant differences in peripheral blood samples taken on the 1st and 30th days from alcohol users are as follows: miR-19a-3p, miR-6849-5p, miR-6726-5p, miR-6848-5p, miR-186-5p, miR-6889-5p, miR-933, miR-370-3p, miR-5739, miR-103a-2-5p, miR-6860, miR-1254, miR-1260a, miR-3921, miR-127-3p, miR-8064, miR-6870-5p, miR-4688 Conclusions: A significant difference was found between the 1st and 30th days in 18 of 2578 miRNAs scanned. It is aimed to investigate these 18 miRNAs in larger sample groups during the alcohol craving period. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Evaluation of microRNA expression levels during the craving period of patients diagnosed with severe alcohol use disorder
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Aşçibaşi, Kadir, primary, Deveci, Artuner, additional, Özyılmaz, Berk, additional, Erdoğan, Kadri Murat, additional, and Çakıroğlu, Elif, additional
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- 2023
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4. Distinctively Different Phenotypes of Two Cases with a Rare Karyotype of 45,X/47,XYY Mosaicism: Case Report and Literature Review
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Köprülü, Özge, primary, Acar, Sezer, additional, Erdoğan, Kadri Murat, additional, Nalbantoğlu, Özlem, additional, Kırkgöz, Tarık, additional, Arslan, Gülçin, additional, Özkaya, Beyhan, additional, Kutbay, Yaşar Bekir, additional, and Özkan, Behzat, additional
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- 2022
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5. A Newborn with Arhinia: Suspected BAM Syndrome.
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Armağan, Coşkun, Egeli, Tuğba Üçüncü, Akyıldız, Can, Erdoğan, Kadri Murat, Erdoğan, Funda, Duman, Nuray, and Özkan, Hasan
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HYPOGONADISM ,GESTATIONAL age ,FETAL heart rate ,CONSANGUINITY ,OPITZ-Frias syndrome - Abstract
Copyright of Journal of Behcet Uz Children's Hospital 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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- 2023
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6. Clinical Effects of T790M Mutation in EGFR Tyrosine Kinase Inhibitor Resistant NSCLC Patients
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Güldaval, Filiz, primary, Anar, Ceyda, additional, Büyükşirin, Melih, additional, Ayık Türk, Merve, additional, Balcı, Günseli, additional, Gayaf, Mine, additional, Akyol, Murat, additional, Alıcı, İbrahim Onur, additional, Polat, Gülru, additional, Karadeniz, Gülistan, additional, Ayrancı, Aysu, additional, Demirci Üçsular, Fatma, additional, Erdoğan, Kadri Murat, additional, Kutbay, Yaşar, additional, Arıkan, Şener, additional, Batum, Özgür, additional, Kömürcuoğlu, Berna, additional, and Ermin, Sinem, additional
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- 2021
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7. Volatil Kondensatta cfDNA
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BAŞBINAR, YASEMİN, ÇALIBAŞI KOÇAL, GİZEM, ALDAĞ, CEYDA, güvenç, merve saka, erdoğan, Kadri Murat, kırbıyık, özgür, özdemir, taha, kutbay, bekir, özyılmaz, berk, KAYA, ÖZGE EZGİ, uzun, umt can, dizdaş, tuğberk nail, KORBA, KORCAN, PELİT, LEVENT, GÖKSEL, TUNCAY, and KOÇ, ALTUĞ
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- 2019
8. The relation between distant metastasis and genetic change type in stage IV lung adenocarcinoma patients at diagnosis
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Ermin, Sinem, primary, Batum, Özgür, additional, Saka Güvenç, Merve, additional, Diniz, Gülden, additional, Ayrancı, Aysu, additional, Erdoğan, Kadri Murat, additional, Yücel, Nur, additional, Yıldırım, Eylem, additional, Özdemir, Taha Reşid, additional, Hacar, Alev Gülşah, additional, Güldaval, Filiz, additional, Koç, Altuğ, additional, Aydoğdu, Zekiye, additional, Balcı, Günseli, additional, Özyılmaz, Berk, additional, Akşit Yaşar, Hacer, additional, Özer Kaya, Özge, additional, Gayaf, Mine, additional, Kırbıyık, Özgür, additional, Aksel, Nimet, additional, Kutbay, Yaşar Bekir, additional, Ursavaş, Tuba Nihal, additional, Karadeniz, Gülistan, additional, Polat, Gülru, additional, Kömürcüoğlu, Berna, additional, Çırak, Ali Kadri, additional, and Yılmaz, Ufuk, additional
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- 2020
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9. TEK GEN HASTALIĞI VE HLA UYUMUNDA PREİMPLANTASYON GENETİK TANI: TEK MERKEZ DENEYİMİ Single Gene Disorder and HLA Matched Preimplantation Genetic Diagnosis: Single Center Experience
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ALPASLAN PINARLI, Ferda, KAPLANOĞLU, İskender, KAHYAOĞLU, İnci, SAAT, Hanife, YILDIZ, Hilal, HARŞIT, Songül, ERDOĞAN, Kadri Murat, and DİLBAZ, Serdar
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TEK GEN HASTALIĞI VE HLA UYUMUNDA PREİMPLANTASYON GENETİK TANI: TEK MERKEZ DENEYİMİ Single Gene Disorder and HLA Matched Preimplantation Genetic Diagnosis: Single Center Experience - Abstract
ÖZETAmaç: Preimplantasyon Genetik Tanı (PGT)’da tek gen hastalıkları taraması ile kombine HLA doku tiplemesi tayini TalasemiMajör gibi yaşamı tehdit eden ve kordon kanı ve /veya kemik iliği nakli ile tam olarak tedavi edilebilen genetik hastalıklarasahip çocuklar için etkin bir yöntemdir. Bu çalışmada, Sağlık Bilimleri Üniversitesi Dışkapı Yıldırım Beyazıt Eğitim AraştırmaHastanesi Genetik Tanı Merkezi Preimplantasyon Genetik Tanı Laboratuvarında 2014-2017 Mayıs döneminde çalışılanvakaların verileri sunulmuştur.Gereç ve Yöntem: Laboratuvarımıza Sağlık Bilimleri Üniversitesi Etlik Zübeyde Hanım Kadın Hastalıkları Tüp BebekMerkezinden gelen 6-8 blastomer aşamasındaki 3. Gün embriyolarından alınan biyopsi örneklerinde preimplantasyongenetik tanı uygulamaları yapılan 91 vakanın genetik analiz sonuçları, mutasyon tipleri, implantasyon ve gebelik başarısı ilecanlı doğum oranları değerlendirildi. Biyopsi örneklerine uygulanan lizis işleminin ardından REPLI-g Advanced DNA SingleCell Kit (Qiagen, USA) ile Whole Genom Amplification (Biorad T100, USA) gerçekleştirildikten sonra mutasyonu taşıyanDNA fragmentlerinin ve HBB geni ile ilişkili 11 markırın belirlenebilir seviyeye kadar multiplex Polimeraz Zincir Reaksiyonu(PZR) ile çoğaltılması yapıldı. Amplifikasyondan sonra DNA, normal DNA fragmentlerini mutasyonu taşıyan fragmentlerdenayırt etmeye olanak sağlayan mini-sekanslama tekniği ile kapiller elektroforez kullanılarak analiz edildi. Seçilmiş LinkedMarkerlar (STR: Short Tandem Repeat/ Kısa tekrar dizileri) mutasyonun tanısı için bir destek oluşturma ve bazı DNAkontaminasyonlarının belirlenmesi amacıyla kullanıldı. HLA tipleme analizlerinde uyumlu HLA genotiplerinin belirlenmesiiçin HLA kompleksi ile ilişkilendirilen 32 markır, multipleks PZR ile çalışılarak DNA fragmentleri kapiller elektroforezkullanılarak analiz edildiBulgular: 86 vaka Beta Talasemi (HBB geni) , bir vaka Orak Hücreli Anemi (HBB geni), bir vaka Blackfan Diamond Anemisi(RPS19 geni), bir vaka akut lenfoblastik lösemi, bir vaka Ağır Konjental Nötropeni (HAX1 geni) ve bir vaka Fankoni AplastikAnemisi (FANCA geni) olmak üzere toplamda 91 vaka çalışıldı. Toplam çalışılan blastomer sayısı 328, transferi yapılan vakasayısı 41, gebelik gerçekleşen vaka sayısı 12, gerçekleşen canlı doğum sayısı 8 ve kemik iliği nakil işlemi yapılan vaka sayısı 6olarak saptandı. Canlı doğumların tümünde gerçekleştirilen ikinci genetik analizde sağlıklı/taşıyıcı gen ve HLA tipinde hastakardeş ile tam uyum görüldü.Sonuç: Sonuçlarımız kemik iliği nakli ile tam kür sağlanan genetik hastalıkların tedavisinde ailede sağlıklı ve HLA uyumluçocuk varlığının önemi açısından anlamlıdır. Diğer preimplantasyon genetik test uygulanan hastalıklarla karşılaştırıldığındatransfer edilebilir blastomer bulma oranının düşük olduğu görülmüş ve bunun blastomerde iki farklı genetik seçilimyapılması gerekliliğinden kaynaklandığı düşünülmüştür.Anahtar Kelimeler: Preimplantasyon genetik tanı; HLA uyumu; Tek gen hastalığı; Multipleks polimeraz zincir reaksiyonu;Kısa tekrar dizileri markırı; DNA sekans analiziABSTRACTPurpose: Preimplantation Genetic Diagnosis (PGD) of single gene disorders combined with HLA typing is an effectivemethod for life-threatening genetic diseases such as Beta thalassemia major which can be treated with bone marrowtransplantation. The aim of this study is to present the data of the cases evaluated between May 2014-May 2017 in the PGDLaboratory of Genetic Diagnosis Center, Dışkapı Yıldırım Beyazıt and Research Hospital, Health Sciences Faculty.Material and Methods: We evaluated the results of genetic analysis, the success of implantation and pregnancy, and therate of live births of 91 cases which was biopsied from blastomeres of 6-8 stage of the 3th day embryos. After the WholeGenome Amplification with REPLI-g Advanced DNA Single Cell Kit (Qiagen, USA) preceded by the lysis of biopsy samples,DNA fragments and HBB related 11 markers were amplified until the predicted level with polymerase chain reaction (PCR).After the amplification, DNA was analyzed with mini-sequencing technique using capillary electrophoresis in order todistinguish normal DNA fragments from the mutated ones. Selected linked markers were used to support the diagnosisof mutation and determinate DNA contaminants. HLA complex related 32 markers were studied with multiplex PCR andDNA fragments were analyzed using capillary electrophoresis in order to determinate compatible HLA genotypes in HLAtyping analyses.Results: We studied a total of 91 cases consisting of 86 cases of beta thalassemia (HBB gene), one case of sickle celldisease (HBB gene), one case of acute lymphoblastic lymphoma, one case of severe congenital neutropenia (HAX1 gene)and one case of Fanconi aplastic anemia (FANCA gene). The total number of blastomeres studied were 328, 41cases weretransferred, and there were 12 successful pregnancies with 8 live births. There were also 6 cases which were treated withbone marrow transplantation. The second genetic analysis of all live births revealed that healthy/carrier gene and HLAtyping of affected sibling was full matched.Conclusion: Our results have significant importance for the treatment of genetic disease which cure is possible with bonemarrow transplantation in the presence of HLA matched sibling. The rate of transferable blastomere were lower than othergenetically tested diseases; however, the reason of this difference was probably the necessity of making two differentgenetic selections.Key words: Preimplantation Genetic Diagnosis, HLA Matching, Single Gene Disorder, Multiplex polimeraz chain reaction,Short Tandem Repeat Marker, Sequence analysis DNA
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- 2019
10. Akciğer Kanserinde Sıvı (Liquid) Biyopsi Tepecik Deneyimi
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Kırbıyık, Özgür, KOÇ, ALTUĞ, GÖKSEL, TUNCAY, KÖMÜRCÜOĞLU, BERNA, Özer Kaya, Özge, Özyılmaz, Berk, Gürsoy, Pınar, BAŞBINAR, YASEMİN, ÇALIBAŞI, GİZEM, SAKA GÜVENÇ, MERVE, Erdoğan, Kadri Murat, Özdemir, Taha Reşid, and Kutbay, Yaşar Bekir
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- 2018
11. Liquid Biopsy in Lung Cancer: Tepecik Experience
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GÖKSEL, TUNCAY, KÖMÜRCÜOĞLU, BERNA, Gürsoy, Pınar, Özyılmaz, Berk, BAŞBINAR, YASEMİN, ÇALIBAŞI, GİZEM, KOÇ, ALTUĞ, Özer Kaya, Özge, SAKA GÜVENÇ, MERVE, Erdoğan, Kadri Murat, Özdemir, Taha Reşid, Kırbıyık, Özgür, and Kutbay, Yaşar Bekir
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- 2018
12. The relation between distant metastasis and genetic change type in stage IV lung adenocarcinoma patients at diagnosis.
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Ermin, Sinem, Batum, Özgür, Saka Güvenç, Merve, Diniz, Gülden, Ayrancı, Aysu, Erdoğan, Kadri Murat, Yücel, Nur, Yıldırım, Eylem, Özdemir, Taha Reşid, Hacar, Alev Gülşah, Güldaval, Filiz, Koç, Altuğ, Aydoğdu, Zekiye, Balcı, Günseli, Özyılmaz, Berk, Akşit Yaşar, Hacer, Özer Kaya, Özge, Gayaf, Mine, Kırbıyık, Özgür, and Aksel, Nimet
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ANAPLASTIC lymphoma kinase ,BRAIN metastasis ,EPIDERMAL growth factor receptors ,DIAGNOSIS ,GENETIC mutation ,ADENOCARCINOMA - Abstract
Introduction: Brain metastasis prevalence is higher in patients with positive epidermal growth factor receptor (EGFR) mutation, anaplastic lymphoma kinase (ALK) and C‐ROS oncogene 1 (ROS‐1) fusion change in lung adenocarcinoma. Objectives: The purpose of our study is to investigate the relation between the genetic change type and the initial distant metastasis in stage IV lung adenocarcinoma patients with genetic changes. Methods: The study was conducted between January 2007 and December 2018 in a retrospective fashion with patients who had lung cancer diagnosed as stage IV adenocarcinoma. The relation between genetic mutation change (EGFR, ALK or ROS‐1) and distant metastasis was analysed. Results: A total of 845 patients were included in the study. The median age was 62 (28‐88). It was determined that lung and pleura metastases were more frequent at a significant level in patients with positive EGFR mutation (P = 0.032, P = 0.004, respectively). In patients with positive ALK fusion change, pleura metastasis was determined to be more frequent (P = 0.001). Multiple metastases were determined to be significantly more in patients with positive ALK fusion change than single metastasis (P = 0.02). Conclusion: In patients with EGFR mutant lung adenocarcinoma, lung and pleura metastasis is more frequent and pleura metastasis is more frequent in ALK positive adenocarcinoma. Additionally, multiple organ metastases are higher in ALK positive lung adenocarcinoma. [ABSTRACT FROM AUTHOR]
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- 2021
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13. The Frequency and Management of TP53 Mutation Carriers in Turkish Patients with BRCA-Negative Breast Cancer Under 50 Years of Age.
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ÖZDEMİR, Taha Reşid, ÖZER KAYA, Özge, EMİROĞLU, Mustafa, ERDOĞAN, Kadri Murat, DEĞİRMENCİ, Mustafa, SAKA GÜVENÇ, Merve, DEMİR, Gönül, KOÇ, Altuğ, ÖZYILMAZ, Berk, and KIRBIYIK, Özgür
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BREAST tumor risk factors ,TUMOR suppressor genes ,BREAST tumors ,GENETIC counseling ,HEALTH care teams ,GENETIC mutation ,POLYMERASE chain reaction ,RISK assessment ,BRCA genes ,LI-Fraumeni syndrome ,SEQUENCE analysis - Abstract
OBJECTIVE Germline mutations in the TP53 gene cause Li-Fraumeni Syndrome (LFS). Breast cancer (BC) is the most common cancer that is seen in young women with LFS. The majority of BC in LFS occurs between 15 and 44 age of years. The present study aims to determine the frequency of TP53 gene germline mutation carriers in Turkish patients with BRCA-negative BC under 50 years of age as the first study from Turkey, to our knowledge, and to emphasize the importance of management in TP53 gene mutation carriers. METHODS One hundred patients with BRCA-negative BC younger than 50 years old were evaluated concerning mutations in the TP53 gene between 2016 and 2017 years. Sequencing analysis using targeted next-generation sequencing (NGS) and deletion/duplication analysis using multiplex ligation-dependent probe amplification (MLPA) method were performed in TP53 gene in all patients. RESULTS Five variants were identified in five of 100 patients (5%) in this study. Four of them were evaluated as known as pathogenic/likely pathogenic (4%; 4/100). One variant was evaluated as a variant of uncertain clinical significance (VUS). CONCLUSION The patients with BRCA-negative BC younger than 50 years old should be evaluated concerning TP53 gene mutations because of increased lifetime risk of various developing cancer. Appropriate genetic counseling should be given to patients with TP53 gene mutations, and the follow-up of these patients should be provided multidisciplinary. [ABSTRACT FROM AUTHOR]
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- 2020
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14. Evaluation of chromosomal abnormalities and Y-chromosome microdeletions in 1696 Turkish cases with primary male infertility: A single-center study.
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Özdemir, Taha Reşid, Özyılmaz, Berk, Çakmak, Özgür, Kaya, Özge Özer, Köse, Can, Kırbıyık, Özgür, Keskin, Mehmet Zeynel, Koç, Altuğ, Zeyrek, Tuğba, Kutbay, Yaşar Bekir, Erdoğan, Kadri Murat, and Güvenç, Merve Saka
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HUMAN reproductive technology ,INFERTILITY ,KARYOTYPES ,MEN'S health ,GENETIC mutation ,POLYMERASE chain reaction ,SEX chromosome abnormalities - Abstract
Objective: The aim of this study was to determine the frequencies of chromosomal abnormalities and Ychromosome microdeletions in Turkish cases with primary male infertility in a single center. Material and methods: Chromosomal abnormalities and Y-chromosome microdeletions were investigated in 1696 cases with primary male infertility between 2012 and 2017. Karyotype analyzes and Y-chromosome microdeletions analyzes [azoospermia factor (AZF) regions] were performed in all cases by using standard cytogenetic methods and the multiplex polymerase chain reaction method, respectively. Results: Chromosomal abnormalities were found in 142 cases (8.4%; 142/1696). Y-chromosome microdeletions were detected in 46 cases (2.7%; 46/1696). Y-chromosome microdeletions in the AZFc region were found in 20 of 46 cases (43%). Conclusion: This study is one of the few were a large number of cases was studied in Turkey. It indicates that cytogenetic and Y-chromosome microdeletion studies should be conducted in cases with primary male infertility prior to selecting assisted reproductive techniques. [ABSTRACT FROM AUTHOR]
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- 2020
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15. Four cases of Chanarin‐Dorfman syndrome presenting with different types of erythrokeratoderma.
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Çetinarslan, Tubanur, Yazıcı, Havva, Erdoğan, Kadri Murat, Kalkan Uçar, Sema, Dalgıç, Göksu, Kaya, Gizem, Er, Esra, Bilaç, Cemal, Temiz, Peyker, Türel Ermertcan, Aylin, and Fölster‐Holst, Regina
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Chanarin‐Dorfman syndrome (CDS) is a multisystem autosomal recessive disorder due to variants of the ABHD5 gene, characterized by lipid vacuoles in the liver and leukocytes, and possible involvement of eyes, ears, skeletal muscle, and central nervous system. CDS may present with skin changes, most commonly congenital non‐ bullous ichthyosiform erythroderma, however erythrokeratoderma‐like findings have been rarely reported in CDS patients. Herein, we report clinical, histopathological and genetic findings of four patients with CDS presenting with different clinical forms of erythrokeratoderma (three with progressive symmetric erythrokeratoderma‐like features and one with erythrokeratoderma variabilis (EKV)‐like features), including one patient with a novel mutation in ABHD5. Although the typical skin finding of CDS syndrome is reported as non‐bullous congenital ichthyosiform erythroderma, CDS should also be in the differential diagnosis in patients with EKV‐like lesions. [ABSTRACT FROM AUTHOR]
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- 2024
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16. First-Line Molecular Genetic Evaluation of Autosomal Recessive Non-Syndromic Hearing Loss.
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Özyılmaz, Berk, Mercan, Gül Caner, Kırbıyık, Özgür, Özdemir, Taha Reşid, Özkara, Samira, Kaya, Özge Özer, Kutbay, Yaşar Bekir, Erdoğan, Kadri Murat, Güvenç, Merve Saka, and Koç, Altuğ
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HEARING disorders ,LEBER'S hereditary optic atrophy ,RESTRICTION fragment length polymorphisms - Abstract
Objective: The aim of this study is to investigate the efficiency of a first-line molecular genetic evaluation approach, in children with deafness. Methods: Patients who were found to have sensorineural hearing loss by age-appropriate audiological tests were selected for the molecular genetic evaluation. The molecular genetic evaluation was carried out with GJB2 gene sequence analysis and mtDNA m.1555A>G mutation Restriction Fragment Length Polymorphism (RFLP) analysis. Additionally, in a small group of patients, hearing loss Multiplex Ligation- dependent Probe Amplification (MLPA) analysis was done out to identify the possible role of copy number changes. Results: In this Turkish cohort, which included 104 index patients and 78 relatives, 33 (31.7%) had Pathogenic/Likely Pathogenic variants. One or more GJB2 sequence variants were identified in 46 (44.1%) of the 104 index patients. The homozygous c.35delG mutation by itself explained the etiology in 24% of our ARSNHL group. In one (5%) of the 20 patients of MLPA group, a hemizygous deletion in POU3F4 gene was detected. Conclusion: In our Turkish cohort, we applied a first-line molecular genetic evaluation approach using GJB2 gene sequence analysis and mtDNA m.1555A>G RFLP analysis. This approach revealed the genetic etiology of 44.1% of our index patients. Additionaly, the results of hearing loss MLPA analysis revealed the limited role of copy number changes in this patient group. Furthermore, with a detailed genotype-phenotype association workup, 2 rare cases of Deafness with Palmoplantar Hyperkeratosis and Keratitis-Ichthyosis-Deafness syndrome were reported. [ABSTRACT FROM AUTHOR]
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- 2019
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17. Tip 2 diabetes mellitus hastalarında PPAR? geninin MLPA (Multıplex Lıgatıon-Dependent Probe Amplıfıcatıon) yöntemi ile genetik analizi
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Erdoğan, Kadri Murat, Düzcan, Füsun, and Tıbbi Genetik Anabilim Dalı
- Subjects
Diabetes mellitus ,Diabetes mellitus-type 2 ,Receptors-cytoplasmic and nuclear ,Phenotype ,Genes ,Endocrinology and Metabolic Diseases ,Mutation ,Endokrinoloji ve Metabolizma Hastalıkları ,Genetics ,Genetik - Abstract
Tip 2 diyabet etiyolojisinde birçok genin birbiriyle etkileşmesi ve poligenik doğasına ilaveten obezite, fiziksel aktivite gibi çevresel faktörler bulunmaktadır. Multifaktöryel kalıtım özelliği olması, tip 2 diyabette bir genin fenotip üzerindeki etkisinin belirlenmesini zorlaştırmaktadır. PPAR? geni tip 2 diyabette en önemli aday genlerdendir ve tip 2 diyabetle ilişkili farklı mutasyonları gösterilmiştir. Ancak bugüne kadar PPAR? geninde tip 2 diyabetle ilişkili büyük delesyon ve/veya duplikasyon bildirilmemiştir.Pamukkale Üniversitesi Tıp Fakültesi Tıbbi Genetik AD'da gerçekleştirilen bu çalışmada Üniversitemiz Sağlık Araştırma ve Uygulama Merkezi Endokrinoloji ve Metabolizma Hastalıkları polikliniğinde, klinik ve biyokimyasal çalışmalarla Tip 2 diyabet tanısı almış 150 olguda Tip 2 DM hastalarına yönelik olarak dizayn edilmiş Salsa MLPA Probemix P224 PPAR? kitleri kullanılarak, PPAR?1 transkriptini kodlayan 8 ekzondaki delesyon ve/veya amplifikasyonlar incelendi. MLPA yöntemiyle Tip 2 diyabet gelişiminde PPAR? geninde delesyon ve/veya duplikasyon varlığına ilişkin bir veri elde edilmedi. Buna neden olabilecek faktörler gözden geçirildi ve sonuçlar literatürdeki PPAR? ve diyabet ilişkisini açıklamış olan veriler eşliğinde tartışıldı. Ayrıca ticari olarak MLPA'da kullanılmak üzere hazırlanmış olan probmiks kitinin, PPAR? genindeki mutasyonların saptanmasında yeterli olmadığı düşünüldü.Tip 2 diyabet'li olguların demografik özellikleri incelendiğinde, bu çalışmadaki olguların birçoğunun vücut kitle indeksine göre kilolu ya da obez olduğu görülürken, erkek olgu sayısının kadınlara oranla daha fazla olduğu saptandı. Tip 2 diyabetli olguların akrabalarında da tip 2 diyabet görülme sıklığının arttığı ve olguların %52,6'sının birinci derece akrabasında tip 2 diyabet olduğu saptandı.Sonuç olarak tip 2 diyabette PPAR? genindeki dengesiz büyük yeniden düzenlenmelerin tespiti için ticari olarak hazırlanmış probmiks kiti yeterli değildir ve ileride yapılacak çalışmalarda farklı probların yer aldığı probmiks ile PPAR? geni incelenebilir. Bununla birlikte tip 2 diyabette PPAR?'da büyük delesyon ve duplikasyon bulunmayabilir. Ayrıca tip 2 diyabet ile ilişkili olabilecek başka genlerin dengesiz büyük genomik yeniden düzenlenmeleri de söz konusu olabilir. In addition to its polygenic nature and interactions of multiple genes, environmental factors such as obesity and physical activity are also considered to be underlying etiology of type 2 diabetes mellitus. The difficulty in determining the effect of a gene on phenotype is because of multifactorial inheritance in type 2 diabetes. PPAR? is one of the important genes in type 2 diabetes, in which different mutations related to type 2 diabetes have been demonstrated. To date, however, neither large deletion nor duplication have been reported in PPAR? gene in type 2 diabetes.This study was conducted in department of Medical Genetics, Pamukkale University School of Medicine. Salsa MLPA Probemix P224 PPAR? kit, which is designed for type 2 diabetes, were used to analyze deletions and/or amplifications in 8 exons that codes PPAR?1 transcript in 150 patients who were diagnosed as type 2 diabetes in Endocrinology and Metabolic Disorders department. No deletion and/or duplication was detected by MLPA method. The factors that could be associated with this finding were reviewed. The results were discussed with the reports in literature about association between PPAR? and type 2 diabetes. Furthermore, the commercial MLPA probmix kit was considered to be insufficient in detecting the mutations in PPAR? gene.We analysed the demographic characteristics of the patients with type 2 diabetes. Body mass index of most of the patients were in overweighted and obesity range. Male to female ratio was higher. It is revealed that positive family history confered an increased risk for type 2 diabetes and 52,6% of first degree relatives of our patients had type 2 diabetes.In conclusion, commercial probmix kit designed for the detection of large genomic rearrangements in PPAR? gene for type 2 diabetes was insufficient. For the future studies PPAR? gene can be investigated with different probmix probes. But it is probable that there is neither deletion nor duplication in PPAR? gene and furthermore large genomic rearrangements in different genes can be associated with type 2 diabetes. 92
- Published
- 2009
18. Evaluation of chromosomal abnormalities and Y-chromosome microdeletions in 1696 Turkish cases with primary male infertility: A single-center study.
- Author
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Özdemir TR, Özyılmaz B, Çakmak Ö, Kaya ÖÖ, Köse C, Kırbıyık Ö, Keskin MZ, Koç A, Zeyrek T, Kutbay YB, Erdoğan KM, and Güvenç MS
- Abstract
Objective: The aim of this study was to determine the frequencies of chromosomal abnormalities and Y-chromosome microdeletions in Turkish cases with primary male infertility in a single center., Material and Methods: Chromosomal abnormalities and Y-chromosome microdeletions were investigated in 1696 cases with primary male infertility between 2012 and 2017. Karyotype analyzes and Y-chromosome microdeletions analyzes [azoospermia factor (AZF) regions] were performed in all cases by using standard cytogenetic methods and the multiplex polymerase chain reaction method, respectively., Results: Chromosomal abnormalities were found in 142 cases (8.4%; 142/1696). Y-chromosome microdeletions were detected in 46 cases (2.7%; 46/1696). Y-chromosome microdeletions in the AZFc region were found in 20 of 46 cases (43%)., Conclusion: This study is one of the few were a large number of cases was studied in Turkey. It indicates that cytogenetic and Y-chromosome microdeletion studies should be conducted in cases with primary male infertility prior to selecting assisted reproductive techniques.
- Published
- 2019
- Full Text
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