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Ceylan AC, Çavdarlı B, Ceylan GG, Topçu V, Satılmış SBA, Bektaş ŞG, Kalem AK, Kayaaslan B, Eser F, Kalkan EA, İnan O, Hasanoğlu İ, Yüksel S, Ateş İ, İzdeş S, Güner R, Gündüz CNS. Impact of Inflammation-Related Genes on COVID-19: Prospective Study at Turkish Cohort. TOHOKU J EXP MED 2023; 261:179-185. [PMID: 37635061 DOI: 10.1620/tjem.2023.j071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
The pandemic coronavirus disease 2019 (COVID-19) has caused a high mortality rate and poses a significant threat to the population. The disease may progress with mild symptoms or may cause the need for intensive care, depending on many factors. In this study, it was aimed to determine if there is a tendency due to genetic factors in COVID-19 patients. Ninety-four of 188 patients with mild clinical and 94 with severe clinical symptoms were included in the study. The targeted panel including coagulopathy (F2, F5), viral invasion (ACE2), and inflammation (CXCL8, IFNAR2, IFNL4, IL10, IL2, IL6, IRF7, TLR3, TLR7, TNF) related genes was performed sequenced by the next generation sequencing (NGS). The variants found were classified and univariate analyses were performed to select candidate variables for logistic model. Risk factors and variants were compared. It was revealed that the presence of 2 or more risk factors caused the disease to progress severely (p < 0.001). Heterozygous IRF7:c.1357-23dup variant had a 2.5 times higher risk for mild disease compared to severe disease. Other variants were found to be more significant in mild disease. Since polymorphic variants were not evaluated in the literature, the findings of our study could not be compared with the literature. However, as variants that may be effective in the severity of infections may differ according to ethnicity. This study has the feature of being a guide for subsequent studies to be carried out especially in Turkish population. Clinical course of the COVID-19 is likely to depend on a variety of risk factors, including age, sex, clinical status, immunology and genetic factors.
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Affiliation(s)
- Ahmet Cevdet Ceylan
- Department of Medical Genetics, Faculty of Medicine, Ankara Yıldırım Beyazıt University
- Department of Medical Genetics, Ankara City Hospital
| | | | - Gülay Güleç Ceylan
- Department of Medical Genetics, Faculty of Medicine, Ankara Yıldırım Beyazıt University
- Department of Medical Genetics, Ankara City Hospital
| | - Vehap Topçu
- Department of Medical Genetics, Ankara City Hospital
| | | | | | - Ayşe K Kalem
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ankara Yıldırım Beyazıt University
- Department of Infectious Diseases and Clinical Microbiology, Ankara City Hospital
| | - Bircan Kayaaslan
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ankara Yıldırım Beyazıt University
- Department of Infectious Diseases and Clinical Microbiology, Ankara City Hospital
| | - Fatma Eser
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ankara Yıldırım Beyazıt University
- Department of Infectious Diseases and Clinical Microbiology, Ankara City Hospital
| | | | - Osman İnan
- Department of Internal Medicine, Ankara City Hospital
| | - İmran Hasanoğlu
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ankara Yıldırım Beyazıt University
- Department of Infectious Diseases and Clinical Microbiology, Ankara City Hospital
| | - Selcen Yüksel
- Department of Biostatistics, Ankara Yıldırım Beyazıt University
| | - İhsan Ateş
- Department of Internal Medicine, Ankara City Hospital, Health Science University
| | - Seval İzdeş
- Department of Anesthesiology and Reanimation-Critical Care, Ankara City Hospital
- Department of Anesthesiology and Reanimation-Critical Care, Faculty of Medicine, Ankara Yıldırım Beyazıt University
| | - Rahmet Güner
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ankara Yıldırım Beyazıt University
- Department of Infectious Diseases and Clinical Microbiology, Ankara City Hospital
| | - C Nur Semerci Gündüz
- Department of Medical Genetics, Faculty of Medicine, Ankara Yıldırım Beyazıt University
- Department of Medical Genetics, Ankara City Hospital
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Demir E, Doğulu N, Tuna Kırsaçlıoğlu C, Topçu V, Eminoglu FT, Kuloğlu Z, Kansu A. A Rare Contiguous Gene Deletion Leading to Trichothiodystrophy Type 4 and Glutaric Aciduria Type 3. Mol Syndromol 2023; 14:136-142. [PMID: 37064336 PMCID: PMC10090967 DOI: 10.1159/000526393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 07/19/2022] [Indexed: 11/12/2022] Open
Abstract
Introduction Trichothiodystrophy type 4 and glutaric aciduria type 3 are rare autosomal recessive disorders caused by biallelic variants in the MPLKIP and SUGCT genes on chromosome 7p14, respectively. Trichothiodystrophy type 4 is characterized by neurologic and cutaneous abnormalities. Glutaric aciduria type 3 is a rare metabolic disorder with inconsistent phenotype and elevated urinary excretion of glutaric acid. Case Presentation Here, we report on an infant presenting with hypotonia, failure to thrive, microcephaly, dysmorphic features, brittle hair, hypertransaminasemia, and recurrent lower respiratory tract infections. Microarray analysis revealed a homozygous microdeletion involving the MPLKIP and SUGCT genes, which are located close to each other. Conclusion Copy number variations should be considered in patients with coexisting clinical expression of different genetic alterations. To the best of our knowledge, our patient is the second case with co-occurrence of trichothiodystrophy type 4 and glutaric aciduria type 3, resulting from a contiguous gene deletion.
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Affiliation(s)
- Engin Demir
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Neslihan Doğulu
- Division of Pediatric Metabolism, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Ceyda Tuna Kırsaçlıoğlu
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Vehap Topçu
- Department of Medical Genetics, Ankara City Hospital, Ankara, Turkey
| | - Fatma Tuba Eminoglu
- Division of Pediatric Metabolism, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Zarife Kuloğlu
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Aydan Kansu
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Turkey
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Bakır A, Topçu V, Çavdarlı B. The molecular landscape of progressive familial intrahepatic cholestasis in Turkey: Defining the molecular profiles and expanding the variant spectrum. Ann Hum Genet 2021; 86:119-126. [PMID: 34961929 DOI: 10.1111/ahg.12456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 12/02/2021] [Accepted: 12/08/2021] [Indexed: 11/29/2022]
Abstract
Progressive familial intrahepatic cholestasis (PFIC) is a rare genetically heterogeneous group of autosomal recessive liver disorders that manifests as intrahepatic cholestasis during the neonatal period. ATP8B1, ABCB11, and ABCB4 genes are responsible for PFIC type 1, PFIC type 2, and PFIC type 3, respectively. To determine the underlying molecular etiology of PFIC, 80 patients from 77 families were investigated. The molecular genetic diagnosis was applied by using next-generation sequencing (NGS) and revealed 29 different variants from 32 patients. In this study, we evaluated these variants according to mechanisms, clinical sub-groups, and genotype-phenotype correlation.
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Affiliation(s)
- Abdullatif Bakır
- Department of Medical Genetics, AnkaraTraining and Research Hospital, Ankara, Turkey.,Department of Medical Genetics, University of Health Sciences, Dr. Sami Ulus Maternity and Children's Education and Research Hospital, Ankara, Turkey
| | - Vehap Topçu
- Department of Medical Genetics, Ankara Numune Training and Research Hospital, Ankara, Turkey.,Department of Medical Genetics, Ankara Cıty Hospıtal, Ankara, Turkey
| | - Büşranur Çavdarlı
- Department of Medical Genetics, Ankara Numune Training and Research Hospital, Ankara, Turkey.,Department of Medical Genetics, Ankara Cıty Hospıtal, Ankara, Turkey
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Sarikaya E, Topçu V, Ceylan AC, Yılmaz N. P–534 A novel heterozygous mutation in the luteinizing hormone/choriogonadotropin receptor (LHCGR) gene in a patient with ‘genuine’ empty follicle syndrome. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Study question
Whether empty follicle syndrome (EFS) in a patient has a genetic basis.
Summary answer
Our findings would expand the mutational spectrum of LHCGR, in patients with GEFS
What is known already
The LHCGR gene (OMIM #52790) is located on chromosome 2p21 has 11 exons The LHCGRs present in gonadal cells; granulosa, theca and luteal cells in women and Leydig cells in menandplays a critical role in male sexual differentiation, female ovarian development and fertility (folliculogenesis, ovulation, corpus luteum formation and progesterone secretion)
Inactivating mutations in males can lead to Leydig cell hypoplasia, which causes disorders in sexual development (MIM #238 320). Phenotype of women is less severe and variable and has no effect on the secondary sex characteristics, but it could cause amenorrhoea and infertility Study design, size, duration: In the context of clinical genetics, Next Generation Sequencing libraries were prepared in line with the manufacturer’s orders using QIASeq™ Targeted DNA Custom Panel (Qiagen) targeting exons and 20 bp exon-intron boundaries of selected genes (AR, BMP15, CATSPER1, CFTR, CYP21A2, FSHB, FSHR, HESX1, LHB, LHCGR, NR5A1, POU1F1, SRY, ZP1). The variant detected in NGS analysis was further confirmed using Sanger sequencing (MiSeq, Illumina, San Diego, CA).
Participants/materials, setting, methods
A 27 years old Turkish women with 6 year history of primary unexplained infertility underwent controlled ovarian hyperstimulation and IVF with an antagonist protocole in Ankara City Hospital. Although normal follicular development, E2 levels, and bioavailable β-hCG plasma levels, no oocytes or cumulus-corona complexes were retrieved by follicular aspiration.
Main results and the role of chance
A novel heterozygous mutation on Exon 5 of LHCGR (NM_000233.4):c.453C>G (p.Phe151Leu). This variant has not been reported in GnomAD database and is a novel variant as per controlled from ClinVar and HGMD mutation databases
Also coagulation tests were done Patient was heterozygote for the prothrombin mutation (FXIII) and homozygote for MTHFR C677T mutation. The patient has normal pubertal development and female karyotype (46,XX). Gonadotropin and E2 levels were normal, nor any history of anosmia, primary amenorrhoea, polycystic ovaries, hyperandrogenism, systemic disorder, or neurologic defect.
According to ACMG 2015 and HGMD detected variant was classified as unknown clinical significance (VUS) variant In 22nd World Congress COGI in 2015 we have presented another recurrent GEFS case with compound heterozygous frameshift mutations in exon 5 and 11 of LHCGRgene(c.1764_1765insT) and (c.430G>T, p.V144F) who developed premature ovarian failure at the end The different types of LHCGR mutations would lead to the different functional effects and clinical phenotypes in different ages; primary amenorrhea with high levels of LH, poor ovarian response (Poesidon group1), GEFS and secondary amenorrhea (premature ovarian failure) GEFS may be a gradual biological occurrence related to ovarian ageing. Long term follow up is important, since some clinical manifestations appear later in life.
Limitations, reasons for caution
LH resistance in females were always found due to their effected brothers and only 10 GEFS cases of 46, XX females with LHCGR gene defect reported in literature.
Patient was heterozygous for indicated mutation; therefore segregation study should be done in family members and in vitro studies should be performed.
Wider implications of the findings: Screening for mutations in the LHCGR gene in Poseidon group 1 and in patients GEFS especially the recurrent ones will provide valuable information and time for clinical management, corresponding treatment and give the opportunity of wise and cost effective counseling of patients about their future reproductive choices.
Trial registration number
it is a case report
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Affiliation(s)
- E Sarikaya
- Yıldırım Beyazıt University- Medical Faculty, Obstetrics and Gynecology, Ankara, Turkey
- Ankara City Hospital, Obstetric and Gynecology, Ankara, Turkey
| | - V Topçu
- Ankara City Hospital, Medical Genetics, Ankara, Turkey
| | - A C Ceylan
- Ankara City Hospital, Medical Genetics, Ankara, Turkey
- Yıldırım Beyazıt University- Medical Faculty, Medical Genetics, Ankara, Turkey
| | - N Yılmaz
- Ankara City Hospital, Obstetric and Gynecology, Ankara, Turkey
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Cesur Baltacı HN, Taşdelen E, Topçu V, Eminoğlu FT, Karabulut HG. Dual diagnosis of Ochoa syndrome and Niemann-Pick disease type B in a consanguineous family. J Pediatr Endocrinol Metab 2021; 34:653-657. [PMID: 33647194 DOI: 10.1515/jpem-2020-0367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 12/25/2020] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Ochoa syndrome (UFS1; Urofacial syndrome-1) is a very rare autosomal recessive disorder caused by mutations in the HPSE2 gene that results bladder voiding dysfunction and somatic motor neuropathy affecting the VIIth cranial nerve. Niemann-Pick disease is a rare autosomal recessive lysosomal storage disorder with systemic involvement resulting from sphingomyelinase deficiency and generally occurs via mutation in the sphingomyelin phosphodiesterase-1 gene (SMPD1). CASE PRESENTATION Here, we report a 6-year-old girl with symptoms such as urinary incontinence, recurrent urinary tract infections, peculiar facial expression, mainly when smiling, hypertelorism, constipation, incomplete closure of eyelids during sleep and splenomegaly. Homozygote mutations in two different genes responsible for two distinct syndromes were detected in the patient. Homozygous NM_000543.5:c.502G>A (p.Gly168Arg) mutation was found in the SMPD1 gene causing Niemann-Pick disease. In addition, some of the clinical features were due to a novel homozygous mutation identified in the HPSE2 gene, NM_021828.5:c.755delA (p.Lys252SerfsTer23). CONCLUSIONS Here, we discuss about the importance of considering dual diagnosis in societies where consanguineous marriages are common. Accurate diagnosis of the patient is very important for the management of the diseases and prevention of complications.
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Affiliation(s)
| | - Elifcan Taşdelen
- Department of Medical Genetics, School of Medicine, Ankara University, Ankara, Turkey
| | - Vehap Topçu
- Department of Medical Genetics, Dr. Zekai Tahir Burak Women's Health Research and Education Hospital, Ankara, Turkey
| | - Fatma Tuba Eminoğlu
- Department of Pediatric Metabolism, School of Medicine, Ankara University, Ankara, Turkey
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Purnak S, Topçu V, Çavdarlı B, Kadan E, Yalçın B. Widespread keratosis pilaris in a patient with Noonan syndrome with multiple lentigines. Int J Dermatol 2018; 57:e140-e141. [PMID: 30152106 DOI: 10.1111/ijd.14209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Seda Purnak
- Department of Dermatology, University of Health Sciences, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Vehap Topçu
- Department of Medical Genetics, University of Health Sciences, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Büşranur Çavdarlı
- Department of Medical Genetics, University of Health Sciences, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Elçin Kadan
- Department of Pathology, University of Health Sciences, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Başak Yalçın
- Department of Dermatology, University of Health Sciences, Ankara Numune Training and Research Hospital, Ankara, Turkey
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Abstract
Jalili syndrome (JS) is a rare autosomal recessive disorder characterized by the combination of cone-rod dystrophy (CRD) and amelogenesis imperfecta. To date, 18 families with JS have been reported, 16 of which were found to have a mutation in CNNM4. We describe three siblings with clinical features of JS with a homozygous missense mutation in exon 4 of CNNM4, c.1781A>G (p.N594S). They demonstrated phenotypic variability in terms of ocular and dental findings. Although fundus examination and optical coherence tomography results were normal, the electroretinogram was compatible with CRD, supporting the diagnosis of JS. The dental phenotype severity also varied among the siblings.
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Affiliation(s)
- Vehap Topçu
- a Department of Medical Genetics , Zekai Tahir Burak Maternity Teaching Hospital , Ankara , Turkey
| | - Muhammed Yunus Alp
- b Genetic Diagnostic Center, Dışkapı Yıldırım Beyazıt Training and Research Hospital , Ankara , Turkey
| | - Cemile Kedici Alp
- c Department of Restorative Dentistry, Faculty of Dentistry , Gazi University , Ankara , Turkey
| | - Abdullatif Bakır
- a Department of Medical Genetics , Zekai Tahir Burak Maternity Teaching Hospital , Ankara , Turkey
| | - Dilay Geylan
- a Department of Medical Genetics , Zekai Tahir Burak Maternity Teaching Hospital , Ankara , Turkey
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Ersoy AÖ, Topçu V, Kale İ, Ersoy E, Özler S, Danışman N. A novel mutated sequence in the T-box transcription factor-5 (TBX-5) gene (c.241A>T) in Holt-Oram syndrome. J Turk Ger Gynecol Assoc 2016; 17:55-7. [PMID: 27026770 DOI: 10.5152/jtgga.2015.15233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 06/11/2015] [Indexed: 11/22/2022] Open
Abstract
We report a case of a 31-year-old pregnant woman who was admitted to our perinatology outpatient clinic because of a fetal ventricular septal defect and limb reduction in the upper extremities of fetus revealed by ultrasonographic investigation diagnosed in the 16(th) week of gestation. First child of the family was diagnosed with Holt-Oram syndrome who had atrial septal defect and upper limb anomalies, whereas the father was documented to have arrhythmia and shortening of upper limbs. The pregnancy was terminated in the 16(th) week of gestation with the consent of the family. We performed mutation analysis in T-box transcription factor-5 (TBX5) gene coding exons, including exon/intron boundaries from peripheral blood or skin fibroblasts. The sequence analysis revealed c.241 adenine (A)>thymine (T) [p. arginine (Arg) 81 Tryptophan (Trp)] alteration in exon-3 of the TBX5 gene in affected family members and fetus. This is a novel mutation causing Holt-Oram syndrome.
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Affiliation(s)
- Ali Özgür Ersoy
- Clinic of Perinatology, Zekai Tahir Burak Women's Health Care Training and Research Hospital, Ankara, Turkey
| | - Vehap Topçu
- Clinic of Medical Genetics, Zekai Tahir Burak Women's Health Care Training and Research Hospital, Ankara, Turkey
| | - İbrahim Kale
- Clinic of Obstetrics and Gynecology, Şar Hospital, Rize, Turkey
| | - Ebru Ersoy
- Clinic of Perinatology, Zekai Tahir Burak Women's Health Care Training and Research Hospital, Ankara, Turkey
| | - Sibel Özler
- Clinic of Perinatology, Zekai Tahir Burak Women's Health Care Training and Research Hospital, Ankara, Turkey
| | - Nuri Danışman
- Clinic of Perinatology, Zekai Tahir Burak Women's Health Care Training and Research Hospital, Ankara, Turkey
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