Hande Küçük Kurtulgan

Prevalence of known mutations in the MEFV gene in a population screening with high rate of carriers

The Familial Mediterranean Fever (FMF) shows an autosomal recessive pattern of inheritance and affects certain ethnic groups. Disease is caused by mutations in MEFV gene and more than 180 mutations have been defined in affected individuals. Current study aimed to determine the frequency-type of the mutations for MEFV gene in Sivas—middle Anatolian city. The cohort was composed of 3340 patients. MEFV gene mutations were studied by multiplex PCR based reverse hybridization stripAssay method. Patients’ clinical features were; family history: 68%, erysipelas-like erythema: 17.6%, fever: 89.9%, abdominal pain: 84.2%, peritonitis: 90.2%, arthritis: 33%, pleuritis: 14.2%, parental consanguinity: 21.2%. Current results revealed that M694V is the most frequent mutation (43.12%), followed by E148Q (20.18), M680I(G/C) (15.00%) and V726A (11.32%). The study population has a high rate of carriers and the E148Q mutation frequency was found to be highest when compared to the other regions of Turkey and other Mediterranean groups.

Bcıı--RFLP profiles for serum amiloid A1 and mutated MEFV gene prevalence in chronic renal failure patients requiring long-term hemodialysis.

Abstract Background and aim: There is an increased mortality risk in long-term hemodialysis patients of renal failure due to the chronic inflammation. The relationship between the chronic renal failure (CRF) and the role of familial genetic markers remains incompletely understood. In the current study, it was aimed to find out the prevalence of common MEFV gene mutations and BcII polymorphism in serum amyloid A1 (SAA1) gene in chronic renal patients (CRF) who require long-term hemodialysis. Method: Current cohort includes 242 CRF patients and 245 healthy individuals from the same population. Total genomic DNA was isolated from peripheral blood–EDTA samples and genotyping of target MEFV gene was carried out by reverse hybridization Strip Assay and real-time techniques. The SAA1 gene was genotyped by the BclI-RFLP method. Results: Increased mutated MEFV genotypes were found in current CRF patients when compared with the control group from the same ethnicity and the difference was statistically significant (Table 2) (OR: 4.9401, 95% CI: 3.0694–7.9509), p < 0.0001. The most frequent point mutations were M694V and E148Q. The mutated T allel frequency in the SAA1 gene was also different when compared with the healthy controls and the difference was found to be statistically significant (χ2: 13.18; p = 0.000). Conclusions: The current results indicate the germ-line mutations in both genetic biomarkers (MEFV and SAA1 genes) that are related to inflammation and amyloidosis processes may play a crucial role in CRF pathogenesis due to the long-term chronic inflammation.

Megacystis Microcolon Intestinal Hypoperistalsis Syndrome in Which a Different De Novo Actg2 Gene Mutation was Detected: A Case Report

ABSTRACT Introduction: Megacystis microcolon intestinal hypoperistalsis syndrome (MMIHS) is characterized by bladder distension without urinary tract obstruction, decreased or absent intestinal peristalsis and microcolon. Although the definitive cause remains unknown, changes in the ACTG2 gene are thought to be responsible for the intestinal and bladder hypoperistalsis. Case report: This female newborn with MMIHS had a c.532C>A /p.Arg178Ser heterozygous de novo mutation detected in the ACTG2 gene. Normal immature ganglion cells, normal calretinin punctate positivity, maintence of smooth muscle actin immunoreactivity, and decreased numbers of interstitial cells of Cajal(ICCs) were detected. Conclusion: This previously unreported c.532C>A /p.Arg178Ser heterozygous de novo mutation in the ACTG2 gene may lead to a severe form of MMIHS.

Angiotensin-Converting Enzyme (ACE) I/D and Alpha-Adducin (ADD1) G460W Gene Polymorphisms in Turkish Patients with Severe Chronic Tinnitus.

OBJECTIVE Tinnitus is described as a disturbing sound sensation in the absence of external stimulation. We aimed to investigate whether there is any relationship between severe chronic tinnitus and angiotensin-converting enzyme (ACE) I/D and α-adducin (ADD1) G460W gene polymorphisms. MATERIALS AND METHODS The patient group and control group consisted of 89 and 104 individuals, respectively. The evaluation of tinnitus was performed using the Strukturiertes Tinnitus-Interview (STI). The Tinnitus Handicap Inventory (THI) was used to evaluate the tinnitus severity. Polymerase chain reaction (PCR) and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) techniques were used for genotyping. RESULTS With regard to the ACE I/D polymorphism, there was no significant difference in genotype and allele frequencies between the patient group and control group. However, a statistically significant difference was found in genotype (p<0.01) and allele frequencies (p=0.021) of the ADD1 G460W gene polymorphism. Combined genotype analysis showed that the ACE II /ADD1 GW genotype was statistically significantly higher in the patient group than in the control group (X2: 7.15, p=0.007). The odds ratio value of the GW genotype was 2.5 (95% CI=1.4-4.7) (p<0.01). CONCLUSION Our results demonstrate an association between ADD1 G460W gene polymorphism and susceptibility to severe chronic tinnitus. It was found that the GW genotype increased the disease risk by 2.5-fold compared with other genotypes. This indicates that ADD1 G460W polymorphism could be an important factor in the pathophysiology of tinnitus.

Recombinant chromosome with partial 14 q trisomy due to maternal pericentric inversion

Background14q duplications caused by parental pericentric inversion of chromosome 14 are rarely reported and no clear genotype-phenotype correlation has been determined yet.Case PresentationHere we reported a 7 years old female patient with recombinant chromosome characterized by 14 q duplication and originated from maternal pericentric inversion of chromosome 14. Principal clinical findings of the child include developmental delay, microcephaly, hypertelorism, low set ears, clinodactyly of fifth fingers, hypotonia, telecanthus and cardiac malformation.ConclusionsHer final karyotype was 46,XX,rec(14)dup(14q)inv(14)(p11.2q24)mat,arr14q24.1-qter(64,800,000-108,350,000 bp)x3.

VATER asosiasyonu: Bir olgu sunumu

Ozet VATER asosiasyonu (V: Vertebral anomali, VSD ve diger kardiyak defektler; A: Anal atrezi veya fistul; T-E: Trakeaozefagial fistul ile ozefagus atrezisi; R: Radial displazi, basparmak veya radial hipoplazi, preaksial polidaktili, sindaktili, renal anomali) cesitli anomaliler ile karekterize olan bir konjenital bozukluktur. Sunulan olguda opere ozefagus atrezisi ve trakeaozefagial fistul, opere vestibuler anus ve anal atrezi, sol el basparmak yoklugu, sol el 5.parmakta klinodaktili, pektus carinatus, skolyoz, dolikosefali, kisa boyun, basik ve genis burun koku, kepce kulak, sakral dimple bulunan 4 yasinda bir kiz cocugu tanimlanmistir. Anahtar sozcukler: VATER asosiasyonu, konjenital asosiasyon, vestibuler anus, anal atrezi Absract VATER association, (V: Vertebral anomaly, VSD and other cardiac defects; A: Anal atresia or fistula; T-E: Tracheoesophageal fistula with esofageal atresia; R: Radial dysplasia, thumb or radial hypoplasia, preaxial polidactyly, syndactyly, renal anomaly) is a relatively rare pattern of multiple congenital abnormalities. In this case, a 4-year-old female child with tracheoesophageal fistula with esophageal atresia, vestibuler anus and anal atresia, left thumb agenesis and clinodactyly in left hand fifth finger, pectus carinatus, scoliosis, short neck, broad and depressed nose, prominent ear and sacral dimple is described. Keywords: VATER association, congenital association, vestibuler anus, anal atresia

Adams Oliver sendromlu bir yenidoğan: Bir olgu sunumu ve literatür değerlendirmesi

Adams Oliver syndrome was first described by Adams and Oliver in 1945. It is a syndrome characterized by aplasia cutis congenita and terminal transverse limb defects of variable severity. A one-day-old female neonate was admitted to the neonatal intensive care unit with aplasia cutis congenita and limb defects. The diagnosis of Adams Oliver syndrome was based on the typical disease features, together with typical appearances on radiography. In this case report, we present a case diagnosed with Adams Oliver syndrome and we also discuss the clinical findings of patients with Adams Oliver syndrome reported in the literature.

Heterozygous Deletion of Exon 8 in WFS1 Gene in Two Wolfram Syndrome Probands with Hearing Loss: Case Report

ABS TRACT Point mutations in the Wolfram syndrome 1 gene (WFS1) are attributed the autosomal dominant and/or recessive mild type sensorineural hearing loss in first degree relatives. Total genomic DNA was isolated from peripheral blood of affected probands and controls. Multiplex polymerase chain reaction was performed and followed by multiplex ligated probe amplification analysis. Sensorineural hearing loss was moderate in a 48-year-old male patient (case 1) and sensorineural hearing loss and optic atrophy were evident in his 16 year old daughter (case 2). We identified heterozygous deletion in exon 8 of WFS1 gene (Wolframin protein) in father and in one of his affected daughters with hearing loss and optic atrophy. The genetic results demonstrate the necessity of screening for the possible point mutation and/or larger deletions in WFS1 gene in cases with non-syndromic mild type sensorineural hearing loss. This study emphasizes the need for careful molecular evaluation in cases with impaired hearing, insulin-dependent diabetes mellitus and optic atrophy for the diagnosis of Wolfram syndrome. Proper genetic counseling must be given accordingly to patients and their other family members since it is important for their next generation.