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Balkan Journal of Medical Genetics: BJMG

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https://www.readbyqxmd.com/read/27785415/recurrent-increased-nuchal-translucency-a-first-trimester-presentation-of-familial-13p-satellite-deletion
#1
I Uzun, R Has, E Alici, M Ozdemir, C Inan, S Erzincan
Chromosome 13 is one of the acrocentric chromosomes of the human karyotype. Acrocentric chromosomes are the most variable chromosomes in the human karyotype and these variations appear to have no clinical consequences. To the best of our knowledge, this is the first reported case of a first trimester presentation of a 13 short arm satellite deletion with markedly increased nuchal translucency (NT). In this case, the 13p short arm satellite deletion was associated with increased NT in two pregnancies from the same couple...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785414/von-recklinghausen-disease-one-patient-various-problems
#2
B Bergler-Czop, B Miziołek, L Brzezińska-Wcisło
von Recklinghausen disease (vRD), more widely known as neurofibromatosis type 1, belongs to a group of genetic disorders and it is considered to be the most common genodermatosis. The disease has an autosomal dominant pattern of inheritance that involves mutations within the NF1 gene located on chromosome 17 in locus q11.2. The product of the NF1 gene is neurofibromin and the protein is well known to be a tumor suppressor factor. This counteracts possible overactivity of RAS (protein)/MAPK (mitogen-activated protein kinase) and RAS/PI3K/AKT/mTOR (phoshatydyloinositol-3-kinase/V-akt murine thy-moma viral oncogene homologue/mammalian target of rapamycin) signaling transduction pathways, preventing from uncontrolled cell proliferation and subsequent tumor formation...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785413/t-lymphoblastic-leukemia-lymphoma-in-macedonian-patients-with-nijmegen-breakage-syndrome
#3
S A Kocheva, K Martinova, Z Antevska-Trajkova, B Coneska-Jovanova, A Eftimov, A J Dimovski
Nijmegen breakage syndrome (NBS) is a rare autosomal recessive chromosomal instability disorder characterized by microcephaly, immunodeficiency, radiosensitivity and a very high predisposition to malignancy. The gene responsible for the disease, NBS1, is located on chromosome 8q21 and encodes a protein called nibrin. After identification of the gene, a truncating 5 bp deletion, 657-661delACAAA, was identified as the disease-causing mutation in patients with the NBS. In this report, we describe two patients with NBS and T-lymphoblastic leukemia/lymphoma in a Macedonian family...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785412/neuroradiological-neurophysiological-and-molecular-findings-in-infantile-krabbe-disease-two-case-reports
#4
E Vargiami, E Papathanasiou, S Batzios, M Kyriazi, E Dimitriou, A Anastasiou, H Michelakakis, A-K Giese, D I Zafeiriou
Krabbe disease is an autosomal recessive neurodegenerative disorder due to a defect of the lysosomal enzyme β-galactocerebrosidase (β-GALC). Depending on the age of onset, the disease is classified into infantile and later-onset forms. We report neuroradiological, neurophysiological and molecular findings in two Greek patients with the infantile form of Krabbe disease. The index patients presented at the age of 3.5 and 6 months, respectively, due to developmental delay. Magnetic resonance imaging (MRI) of the first patient's brain demonstrated signs of leukodystrophy, while nerve conduction velocities (NCVs) were significantly decreased...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785411/gene-mapping-in-an-anophthalmic-pedigree-of-a-consanguineous-pakistani-family-opened-new-horizons-for-research
#5
S Saleha, M Ajmal, S Zafar, A Hameed
Clinical anophthalmia is a rare inherited disease of the eye and phenotype refers to the absence of ocular tissue in the orbit of eye. Patients may have unilateral or bilateral anophthalmia, and generally have short palpebral fissures and small orbits. Anophthalmia may be isolated or associated with a broader syndrome and may have genetic or environmental causes. However, genetic cause has been defined in only a small proportion of cases, therefore, a consanguineous Pakistani family of the Pashtoon ethnic group, with isolated clinical anophthalmia was investigated using linkage mapping...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785410/investigation-of-the-n-terminal-coding-region-of-muc7-alterations-in-dentistry-students-with-and-without-caries
#6
L Koç Öztürk, A Yarat, S Akyuz, H Furuncuoglu, K Ulucan
Human low-molecular weight salivary mucin (MUC7) is a small, secreted glycoprotein coded by MUC7. In the oral cavity, they inhibit the colonization of oral bacteria, including cariogenic ones, by masking their surface adhesions, thus helping saliva to avoid dental caries. The N-terminal domain is important for low-molecular weight (MG2) mucins to contact with oral microorganisms. In this study, we aimed to identify the N-terminal coding region of the MUC7 gene between individuals with and without caries. Forty-four healthy dental students were enrolled in this study; 24 of them were classified to have caries [decayed, missing, filled-teeth (DMFT) = 5...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785409/pecam-1-gene-polymorphism-rs668-and-subclinical-markers-of-carotid-atherosclerosis-in-patients-with-type-2-diabetes-mellitus
#7
D Popović, J Nikolajević Starčević, M Šantl Letonja, J Makuc, A Cokan Vujkovac, H Reschner, D Bregar, D Petrovič
The platelet endothelial cell adhesion molecule 1 (PECAM-1) plays an important role in many inflammatory processes, including the development of atherosclerosis. Polymorphism rs668 of the PECAM-1 gene (373C/G) is functional, and it was reported to be associated with increased serum levels of PECAM-1. We investigated the association between the rs668 polymorphism of PECAM-1 and subclinical markers of carotid atherosclerosis in subjects with type 2 diabetes mellitus (T2DM). Five hundred and ninety-five T2DM subjects and 200 control subjects were enrolled...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785408/association-of-the-mthfr-c677t-rs1801133-polymorphism-with-idiopathic-male-infertility-in-a-local-pakistani-population
#8
M Irfan, M Ismail, M Azhar Beg, A Shabbir, A Rashid Kayani, G Kaukab Raja
The present study determined an association between idiopathic sperm disorders in a local Pakistani infertile male population and the MTHFR C677T polymorphism. After ruling out non genetic factors, a total of 437 idiopathic infertile men including 57 azoospermic, 66 oligospermic, 44 asthenozoospermic, 29 teratozoospermic, 20 oligoasthenospermic and 221 infertile normospermic men were recruited. Furthermore, 218 normospermic fertile men, who had two children (or more) were included as controls. The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique was used to determine MTHFR C677T (rs1801133) polymorphism...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785407/frequency-and-association-of-1691-g-a-fvl-20210-g-a-pt-and-677-c-t-mthfr-with-deep-vein-thrombosis-in-the-population-of-bosnia-and-herzegovina
#9
A Jusić-Karić, R Terzić, Z Jerkić, A Avdić, M Pođanin
The 1691 (G>A) factor V Leiden (FVL) and 20210 (G>A) prothrombin (PT) mutations are the two most common genetic risk factors in venous thromboembolism. The 677 (C>T) methylene tetrahydrofolate reductase (MTHFR) mutation is the most frequently mentioned as an independent genetic risk factor for venous thromboembolism. As there are limited published data on the prevalence of the 1691, 20210 and 677 mutations in our population, the aim of this study was to determine the frequencies and association of these deep vein thrombosis mutations in the Bosnian population...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785406/genetic-and-clinical-analysis-of-nonsyndromic-hearing-impairment-in-pediatric-and-adult-cases
#10
J Xing, X Liu, Y Tian, J Tan, H Zhao
Previous studies have linked GJB2 gene and mitochondrial DNA (mtDNA) mutations to nonsyndromic hearing impairment (NSHI), but no study in China has yet investigated these mutations across all age groups. To fill the gap, this study ascertained 263 patients with NSHI between ages 2 months and 60 years and analyzed the presence of GJB2 gene and mtDNA A1555G/C1494T mutations by polymerase chain reaction (PCR) and DNA sequencing. A total of 20 types of mutations were detected for the GJB2 gene. The GJB2 gene and mtDNA A1555G/C1494T mutations were detected in 18...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785405/prevalence-and-mutations-of-%C3%AE-thalassemia-trait-and-abnormal-hemoglobins-in-premarital-screening-in-%C3%A3-anakkale-province-turkey
#11
A Uludağ, A Uysal, A Uludağ, Y H Ertekin, M Tekin, B Kütük, F Silan, Ö Özdemir
The prevalence of β-thalassemia (β-thal) carriers in Turkey varies according to region but in general it is 2.0%. Çanakkale is a city in the Aegean region of Turkey but no study about β-thal frequency in Çanakkale has been published to date. In this study, we aimed to investigate the frequency of β-thal mutations in this province. A total of 4452 couples (8904 individuals) applied for premarital thalassemia scans at the Çanakkale State Health Directorate Laboratory between January 2008 and June 2012 and scanning was done with high performance liquid chromatography (HPLC)...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785404/the-influence-of-cyp2c8-3-on-carbamazepine-serum-concentration-in-epileptic-pediatric-patients
#12
D D Milovanovic, J R Milovanovic, M Radovanovic, I Radosavljevic, S Obradovic, S Jankovic, D Milovanovic, N Djordjevic
The aim of the present study was to investigate the distribution of CYP2C8 variants *3 and *5, as well as their effect on carbamazepine pharmacokinetic properties, in 40 epileptic pediatric patients on carbamazepine treatment. Genotyping was conducted using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), and allele-specific (AS)-PCR methods, and steady-state carbamazepine plasma concentrations were determined by high performance liquid chromatography (HPLC). The CYP2C8 *3 and *5 polymorphisms were found at frequencies of 17...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785403/assessment-of-genotoxicity-of-vincristine-vinblastine-and-vinorelbine-in-human-cultured-lymphocytes-a-comparative-study
#13
N M Mhaidat, K H Alzoubi, O F Khabour, K Z Alawneh, L A Raffee, E S Alsatari, E I Hussein, K E Bani-Hani
Vincristine (VCR), vinblastine (VBL) and vinorelbine (VRL) are anticancer agents from the Vinca alkaloid family that have the potential to induce genotoxic effect. The aim of the present study was to compare the genotoxic effect of VCR, VBL and VRL. Levels of 8-hydroxy-2-deoxy guanosine (8-OHdG) and sister chromatid exchanges (SCEs) were measured in cultured human blood lymphocytes treated with VCR, VBL and VRL at concentrations of 0.01 and 0.1 μg/mL. Results showed that VCR, VBL and VRL significantly increased the 8-OHdG levels (p <0...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785402/embryo-quality-predictive-models-based-on-cumulus-cells-gene-expression
#14
R Devjak, T Burnik Papler, I Verdenik, K Fon Tacer, E Vrtačnik Bokal
Since the introduction of in vitro fertilization (IVF) in clinical practice of infertility treatment, the indicators for high quality embryos were investigated. Cumulus cells (CC) have a specific gene expression profile according to the developmental potential of the oocyte they are surrounding, and therefore, specific gene expression could be used as a biomarker. The aim of our study was to combine more than one biomarker to observe improvement in prediction value of embryo development. In this study, 58 CC samples from 17 IVF patients were analyzed...
July 1, 2016: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785401/a-case-with-emanuel-syndrome-extra-derivative-22-chromosome-inherited-from-the-mother
#15
E İkbal Atli, H Gürkan, Ü Vatansever, S Ulusal, H Tozkir
Emanuel syndrome (ES) is a rare chromosomal disorder that is characterized by multiple congenital anomalies and developmental disabilities. Affected children are usually identified in the newborn period as the offspring of balanced (11;22) translocation carriers. Carriers of this balanced translocation usually have no clinical symptoms and are often identified after the birth of offspring with an unbalanced form of the translocation, the supernumerary der(22) t(11;22) syndrome. We report a 3-year-old boy with the t(11;22)(q23;q11) chromosome, transmitted in an unbalanced fashion from his mother...
December 1, 2015: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785400/sarcolemmal-deficiency-of-sarcoglycan-complex-in-an-18-month-old-turkish-boy-with-a-large-deletion-in-the-beta-sarcoglycan-gene
#16
G Diniz, H Tekgul, F Hazan, K Yararbas, A Tukun
Limb-girdle muscular dystrophy type 2E (LGMD-2E) is caused by autosomal recessive defects in the beta sarcoglycan (SGCB) gene located on chromosome 4q12. In this case report, the clinical findings, histopathological features and molecular genetic data in a boy with β sarcoglycanopathy are presented. An 18-month-old boy had a very high serum creatinine phosphokinase (CPK) level that was accidentally determined. The results of molecular analyses for the dystrophin gene was found to be normal. He underwent a muscle biopsy which showed dystrophic features...
December 1, 2015: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785399/von-hippel-lindau-disease-the-clinical-manifestations-and-genetic-analysis-results-of-two-cases-from-a-single-family
#17
S Kinyas, S A Ozal, H Guclu, V Gurlu, H Esgin, H Gurkan
von Hippel-Lindau (VHL) disease is an autosomal dominant inherited multi systemic cancer syndrome that is classically associated with neoplasms in multiple organs, and caused by mutations in the VHL gene on chromosome 3p25-p26. Retinal hemangioblastoma (RH) is the most frequent and the earliest clinical sign of the disease, which is seen in 40.0-60.0% of patients. In recent years, studies of patients with VHL tried to put forward the relationship between genotype and phenotype. In this study, two VHL cases in the same family with clinical findings and genetic analysis results are presented...
December 1, 2015: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785398/variants-in-mitochondrial-trna-gene-may-not-be-associated-with-thyroid-carcinoma
#18
F Lv, G Qian, W You, H Lin, X F Wang, G S Qiu, Y S Jiang, L X Pang, Y M Kang, B F Jia, J Z Xu, Y Yu
Thyroid cancer is a very common form of endocrine system malignancy. To date, the molecular mechanism underlying thyroid cancer remains poorly understood. Studies of oncocytic tumors have led to a hypothesis which proposes that defects in oxidative phosphorylation (OX- PHOS) may result in a compensatory increase in mitochondrial replication and gene expression. As a result, mitochondrial DNA (mtDNA) mutation analysis has become a useful tool to explore the molecular basis of this disease. Among these mutations, mitochondrial transfer RNAs (mttRNAs) are the hot spots for pathogenic mutations associated with thyroid cancer...
December 1, 2015: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785397/cyp2d6-allele-distribution-in-macedonians-albanians-and-romanies-in-the-republic-of-macedonia
#19
M Kuzmanovska, M Dimishkovska, I Maleva Kostovska, P Noveski, E Sukarova Stefanovska, D Plaseska-Karanfilska
Cytochrome P450 2D6 (CYP2D6) is an enzyme of great importance for the metabolism of clinically used drugs. More than 100 variants of the CYP2D6 gene have been identified so far. The aim of this study was to investigate the allele distribution of CYP2D6 gene variants in 100 individuals of each of the Macedonian, Albanian and Romany population, by genotyping using long range polymerase chain reaction (PCR) and a multiplex single base extension method. The most frequent variants and almost equally distributed in the three groups were the fully functional alleles *1 and *2...
December 1, 2015: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/27785396/association-between-the-catechol-o-methyltransferase-val158met-polymorphism-with-susceptibility-and-severity-of-carpal-tunnel-syndrome
#20
E Erkol İnal, P Eroğlu, O Görükmez, Ş Özemri Sağ, T Yakut
Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy of the upper extremity. In this study, we aimed to clarify the relationships between the catechol-O-methyltransferase (COMT) gene Val158Met (rs4680) polymorphism and development, functional and clinical status of CTS. Ninety-five women with electro diagnostically confirmed CTS and 95 healthy controls were enrolled in the study. The functional and clinical status of the patients was measured by the Turkish version of the Boston Questionnaire and intensity of pain related to the past 2 weeks was evaluated on a visual analog scale (VAS)...
December 1, 2015: Balkan Journal of Medical Genetics: BJMG
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