Person: YEŞİL, GÖZDE
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Publication Metadata only A Rare Cause of Adrenal Insufficiency - Isolated ACTH Deficiency Due toTBX19Mutation: Long-Term Follow-Up of Two Cases and Review of the Literature(2020-06-01T00:00:00Z) Al, Asli Derya Kardelen; Poyrazoglu, Sukran; Aslanger, Ayca; YEŞİL, Gözde; Ceylaner, Serdar; Bas, Firdevs; Darendeliler, Feyza; YEŞİL, GÖZDEIntroduction:Isolated adrenocorticotropic hormone (ACTH) deficiency (IAD) is a rare cause of adrenal insufficiency and T-box pituitary restricted transcription factor (TBX19) mutations are responsible for two-thirds of the neonatal onset form of the disease. IAD presents with hypoglycemia and prolonged jaundice in the neonatal period.TBX19is important for both pro-opiomelanocortin (POMC) gene transcription and differentiation ofPOMC-expressing cells. We describe 2 patients, 1 with a reported and 1 with a novelTBX19mutation, and present information about the long-term follow-up of these patients.Case Presentation:Both patients had critical illnesses, recurrent hypoglycemia, convulsions, and neonatal hyperbilirubinemia. They also had low cortisol and ACTH levels, while other pituitary hormones were within the normal range. Pituitary imaging was normal. After hydrocortisone treatment, there was resolution of the hypoglycemia and the convulsions were controlled. Genetic studies of the patients revealed both had inherited a homozygous mutation of theTBX19gene. The first patient had an alteration of NM_005149.3:c.856C>T (p.R286*) and the second patient had a novel NM_005149.3:c.584C>T (p.T195I) mutation, analyzed by next-generation sequencing. The noteworthy findings of the patients at follow-up were: short stature, microcephaly, and decreased pubic hair in the first, and dysmorphic features, Chiari type 1 malformation, tall stature, and low bone mineral density (BMD) in the second.Conclusion:Congenital IAD can be life-threatening if it is not recognized and treated early.TBX19mutations should be considered in the differential diagnosis of IAD. Further cases or functional analyses are needed for genotype-phenotype correlations. Low BMD, dysmorphic features, Chiari type 1 malformation, and sparse pubic hair are some of the important features in these patients.Publication Open Access Pseudohypoparathyroidism Type Ia with Normocalcemia(2019-04-01T00:00:00Z) Kutlu, Esra; CESUR, Yaşar; ÖZGEN, İLKER TOLGA; Yesil, Gozde; KUTLU, ESRA; ÖZGEN, İLKER TOLGA; CESUR, YAŞAR; YEŞİL, GÖZDEPseudohypoparathyroidism (PHP) is a heterogeneous group of disorder with parathormone target organ resistance, characterized by hypocalcemia, hyperphosphatemia and high blood parathormone (PTH). Typical phenotypic symptoms and additional hormonal resistance can be observed in type Ia, which is also known as Albright hereditary osteodystrophy. Our patient was an eight-year and nine-month old girl with typical Albright-s hereditary osteodystrophy phenotype including short stature, obesity, round face, low nasal bridge, shortened metacarpals, and mild mental retardation. In her biochemical examination, high PTH level and hypothyroidism is detected in spite of normal calcium and phosphor levels. As a result of clinic and laboratory tests, the findings were consistent with PHP type Ia with normocalcemia. In her guanine nucleotide binding protein (G protein), alpha stimulating activity polypeptide 1 (GNAS 1) gene serial analysis, C-308T>C (p1103T) transformation was detected, which was previously reported in a PHP type Ia patient. In this report, we-ve aimed to emphasize the fact that calcium and phosphor level in the blood of the patient with PHP type Ia can be measured normal.Publication Metadata only Early Diagnosis of Fanconi-Bickel Syndrome and a Novel Mutation in SLC2A2 Gene(2019-09-01) Celikboya, Ezgi; Cansever, Mehmet Serif; Zubarioglu, Tanyel; YEŞİL, GÖZDE; Akinci, Nurver; YEŞİL, GÖZDEFanconi-Bickel syndrome is a metabolic disease caused by mutations in SCL2A2 gene. Hepatic and renal glycogen storage, fasting hypoglycemia, and renal tubular dysfunction are characteristics of the disease that is usually diagnosed at 6-10 months of age. Here, we present a case of Fanconi-Bickel syndrome in a patient who was diagnosed at 47 days of age with the findings of glycosuria, hyperglycemia and an elevated level of alkaline phosphatase (ALP). The diagnosis was confirmed by identification of a new mutation in SLC2A2 gene and metabolic control was provided by a galactose-restricted high protein diet. A 27-day-old female patient was admitted with glycosuria. It was observed that she did not gain enough weight, had fat cheeks and hepatomegaly. Biochemical investigations revealed transaminase and ALP elevation. Fasting plasma glucose level was normal whereas postprandial glucose level was 198 mg/dL Urinalysis revealed 1+ protein and 3+ glucose. In follow-up, hyperglycemia started to be more evident, the ALP level decreased, compensated metabolic acidosis developed and the diagnosis of Fanconi-Bickel syndrome was assumed at 47 days of age. Under nutrition and oral replacement therapies good metabolic control and weight gain could be achieved. Postprandial hyperglycemia and glycosuria are early diagnostic clues for Fanconi-Bickel syndrome. Awareness of early findings and initiation of galactose-restricted high protein diet may provide metabolic control and prevent late complications.Publication Open Access Familial amyloid polyneuropathy due to p.ALA140 ser mutation(2018-01-01) GÜRSOY, Azize; YEŞİL, GÖZDE; ERGÜN, SELMA; Tosuner, ZEYNEP; GÜRSOY, AZIZE ESRA; YEŞİL, GÖZDE; ERGÜN, SELMA; TOSUNER, ZEYNEPPublication Metadata only Hereditary spastic paraplegia type 35 caused by a novel FA2H mutation(2017-05-01T00:00:00Z) Bektas, Gonca; Yesil, Gozde; Yildiz, Edibe Pembegul; Aydinli, Nur; Caliskan, Mine; Ozmen, Meral; YEŞİL, GÖZDEHereditary spastic paraplegia type 35 (SPG35) is a rare disorder characterized by progressive spasticity. Mutations in the fatty acid 2-hydroxylase (FA2H) gene in different loci are responsible for phenotypic variability. We aimed to define the phenotype of SPG35 linked to a novel homozygous mutation c.160_169dup (p. Asp57Glyfs*48) in the FA2H gene, and compared with the clinical characteristics and neuroimaging findings of the patients with mutation in the FA2H gene. We describe a 5-year-old boy presenting with spastic paraplegia. He developed a rapid progressive spastic paraplegia and loss of ambulation at an early age, despite the absence of accompanying seizure, neuropathy, cognitive impairment, speech disturbance, and optic atrophy. Neuroimaging revealed white matter changes without brain iron accumulation. A duplication variation; leading to a truncated protein c. 160_169dup in the FA2H gene was found on the homozygous state. A homozygous mutation c.160_169dup in the FA2H gene, which resulted in SPG35 phenotype, may present with rapid progressive spastic paraplegia at an early age.Publication Open Access Exome Sequencing of a Primary Ovarian Insufficiency Cohort Reveals Common Molecular Etiologies for a Spectrum of Disease(2019-08-01) Jolly, Angad; Bayram, Yavuz; Turan, Serap; Aycan, Zehra; Tos, Tulay; Abali, Zehra Yavas; Hacihamdioglu, Bulent; Akdemir, Zeynep Hande Coban; Hijazi, Hadia; Bas, Serpil; Atay, Zeynep; ABALI, Saygın; Guran, Tulay; Bas, Firdevs; Darendeliler, Feyza; Colombo, Roberto; Barakat, Tahsin Stefan; Rinne, Tuula; White, Janson J.; YEŞİL, GÖZDE; Gezdirici, Alper; Gulec, Elif Yilmaz; Karaca, Ender; Pehlivan, Davut; Jhangiani, Shalini N.; Muzny, Donna M.; Poyrazoglu, Sukran; Bereket, Abdullah; Gibbs, Richard A.; Posey, Jennifer E.; Lupski, James R.; YEŞİL, GÖZDEContext: Primary ovarian insufficiency (POI) encompasses a spectrum of premature menopause, including both primary and secondary amenorrhea. For 75% to 90% of individuals with hyper-gonadotropic hypogonadism presenting as POI, the molecular etiology is unknown. Common etiologies include chromosomal abnormalities, environmental factors, and congenital disorders affecting ovarian development and function, as well as syndromic and nonsyndromic single gene disorders suggesting POI represents a complex trait.Publication Open Access Primary immunodeficiency diseases: Genomic approaches delineate heterogeneous Mendelian disorders(2017-01-01) Stray-Pedersen, Asbjorg; Sorte, Hanne Sormo; Samarakoon, Pubudu; Gambin, Tomasz; Chinn, Ivan K.; Akdemir, Zeynep H. Coban; Erichsen, Hans Christian; Forbes, Lisa R.; Gu, Shen; Yuan, Bo; Jhangiani, Shalini N.; Muzny, Donna M.; Rodningen, Olaug Kristin; Sheng, Ying; Nicholas, Sarah K.; Noroski, Lenora M.; Seeborg, Filiz O.; Davis, Carla M.; Canter, Debra L.; Mace, Emily M.; Vece, Timothy J.; Allen, Carl E.; Abhyankar, Harshal A.; Boone, Philip M.; Beck, Christine R.; Wiszniewski, Wojciech; Fevang, Borre; Aukrust, Pal; Tjonnfjord, Geir E.; Gedde-Dahl, Tobias; Hjorth-Hansen, Henrik; Dybedal, Ingunn; Nordoy, Ingvild; Jorgensen, Silje F.; Abrahamsen, Tore G.; Overland, Torstein; Bechensteen, Anne Grete; Skogen, Vegard; Osnes, Liv T. N.; Kulseth, Mari Ann; Prescott, Trine E.; Rustad, Cecilie F.; Heimdal, Ketil R.; Belmont, John W.; Rider, Nicholas L.; Chinen, Javier; Cao, Tram N.; Smith, Eric A.; Soledad Caldirola, Maria; Bezrodnik, Liliana; Lugo Reyes, Saul Oswaldo; Espinosa Rosales, Francisco J.; Guerrero-Cursaru, Nina Denisse; Pedroza, Luis Alberto; Poli, Cecilia M.; Franco, Jose L.; Trujillo Vargas, Claudia M.; Aldave Becerra, Juan Carlos; Wright, Nicola; Issekutz, Thomas B.; Issekutz, Andrew C.; Abbott, Jordan; Caldwell, Jason W.; Bayer, Diana K.; Chan, Alice Y.; Aiuti, Alessandro; Cancrini, Caterina; Holmberg, Eva; West, Christina; Burstedt, Magnus; Karaca, Ender; Yesil, GÖZDE; Artac, Hasibe; Bayram, Yavuz; Atik, Mehmed Musa; Eldomery, Mohammad K.; Ehlayel, Mohammad S.; Jolles, Stephen; Flato, Berit; Bertuch, Alison A.; Hanson, I. Celine; Zhang, Victor W.; Wong, Lee-Jun; Hu, Jianhong; Walkiewicz, Magdalena; Yang, Yaping; Eng, Christine M.; Boerwinkle, Eric; Gibbs, Richard A.; Shearer, William T.; Lyle, Robert; Orange, Jordan S.; Lupski, James R.; YEŞİL, GÖZDEBackground: Primary immunodeficiency diseases (PIDDs) are clinically and genetically heterogeneous disorders thus far associated with mutations in more than 300 genes. The clinical phenotypes derived from distinct genotypes can overlap. Genetic etiology can be a prognostic indicator of disease severity and can influence treatment decisions. Objective: We sought to investigate the ability of whole-exome screening methods to detect disease-causing variants in patients with PIDDs.Publication Open Access Longitudinal Follow-Up of Two Patients with Dysspondyloenchondromatosis due to Novel Heterozygous Mutations in COL2A1(2018-01-01) Gunes, Nilay; YEŞİL, GÖZDE; Beng, Kubilay; Kahraman, Sinan; Tuysuz, Beyhan; YEŞİL, GÖZDEDysspondyloenchondromatosis (DSC) is a rare form of generalized enchondromatosis and characterized by short stature with unequal limb length, multiple enchondromas in metaphyseal and diaphyseal parts of the long tubular bones, and progressive kyphoscoliosis. Although the COL2A1 gene mutation was found to be responsible for DSC, a case of DSC with no pathogenic mutation in the COL2A1 gene has also been reported, suggesting that the condition is genetically heterogeneous. Here, we report 2 novel heterozygous mutations in COL2A1 in 2 patients with DSC. They had prenatal onset short stature with unequal limb length and generalized enchondroma-like lesions in metaphyseal and diaphyseal parts of the long tubular bones, and osteopenia. The first patient was diagnosed at 3 months of age and followed for 10.5 years. Severe lumbosacral scoliosis and recurrent fractures were observed. The second patient was diagnosed at the age of 4 years. Mild deterioration in scoliosis was observed during the 3-year-long follow-up period. However, skeletal radiography of both patients showed the improvement of enchondromatous lesions. In conclusion, we verified that the COL2A1 gene mutations are responsible for the DSC phenotype. We observed severe osteopenia and fractures which were not reported previouslyPublication Open Access Monoallelic and Biallelic Variants in EMC1 Identified in Individuals with Global Developmental Delay, Hypotonia, Scoliosis, and Cerebellar Atrophy(2016-03-03) Harel, Tamar; YEŞİL, GÖZDE; Bayram, Yavuz; Coban-Akdemir, Zeynep; Charng, Wu-Lin; Karaca, Ender; Al Asmari, Ali; Eldomery, Mohammad K.; Hunter, Jill V.; Jhangiani, Shalini N.; Rosenfeld, Jill A.; Pehlivan, Davut; El-Hattab, Ayman W.; Saleh, Mohammed A.; Leduc, Charles A.; Muzny, Donna; Boerwinkle, Eric; Gibbs, Richard A.; Chung, Wendy K.; Yang, Yaping; Belmont, John W.; Lupski, James R.; YEŞİL, GÖZDEThe paradigm of a single gene associated with one specific phenotype and mode of inheritance has been repeatedly challenged. Genotype-phenotype correlations can often be traced to different mutation types, localization of the variants in distinct protein domains, or the trigger of or escape from nonsense-mediated decay. Using whole-exome sequencing, we identified homozygous variants in EMC1 that segregated with a phenotype of developmental delay, hypotonia, scoliosis, and cerebellar atrophy in three families. In addition, a de novo heterozygous EMC1 variant was seen in an individual with a similar clinical and MRI imaging phenotype. EMC1 encodes a member of the endoplasmic reticulum (ER)-membrane protein complex (EMC), an evolutionarily conserved complex that has been proposed to have multiple roles in ER-associated degradation, ER-mitochondria tethering, and proper assembly of multi-pass transmembrane proteins. Perturbations of protein folding and organelle crosstalk have been implicated in neurodegenerative processes including cerebellar atrophy. We propose EMC1 as a gene in which either biallelic or monoallelic variants might lead to a syndrome including intellectual disability and preferential degeneration of the cerebellum.Publication Metadata only The drug-transporter gene MDR1 C3435T and G2677T/A polymorphisms and the risk of multidrug-resistant epilepsy in Turkish children(2014-01-01T00:00:00Z) Seven, Mehmet; Batar, Bahadir; Unal, Selin; Yesil, GÖZDE; Yuksel, Adnan; Guven, Mehmet; YEŞİL, GÖZDEOne-third of all individuals with epilepsy are resistant to antiepileptic drug (AED) treatment. Antiepileptic treatment response has been suggested to be modulated by genetic polymorphisms of drug efflux transporters. Several polymorphic variants within the multidrug resistance 1 (MDR1) gene, which encodes the major transmembrane efflux transporter P-glycoprotein, have been proposed to be associated with AED resistance in epilepsy patients. The aim of this study was to evaluate the effect of C3435T and G2677T/A polymorphisms of MDR1 on AED resistance in Turkish children with epilepsy. MDR1 C3435T and G2677T/A were genotyped in 152 patients with epilepsy, classified as drug-resistant in 69 and drug-responsive in 83. Genotypes of the C3435T and G2677T/A polymorphisms were determined by polymerase chain reaction followed by restriction fragment length polymorphism. Genotype and allele frequencies of C3435T and G2677T/A polymorphisms of the MDR1 gene did not differ between drug-resistant and drug-responsive epilepsy patients. Our results suggest that MDR1 C3435T and G2677T/A polymorphisms are not associated with AED resistance in Turkish epileptic patients. To clarify the exact clinical implication of the MDR1 polymorphisms on the multidrug resistance in epilepsy, further investigations in various ethnic populations would be necessary.
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