Entity

Time filter

Source Type

Zalaegerszeg, Hungary

Saleh-Gohari N.,Kerman Medical University | Bami M.K.,Genetic Laboratory | Nikbakht R.,Kerman Medical University | Karimi-Maleh H.,Kerman Graduate University of Technology
Journal of Clinical Pathology | Year: 2015

Background Thalassaemia is a haemoglobin disorder caused by a reduction in, or a complete absence of, the production of α- or β-globin genes. Detection of β-thalassaemia carriers is the first step in the prenatal diagnosis of the disease and is based primarily on the differences between levels of blood cell indices. Since co-inheritance of β- and α-thalassaemia mutations modulates the haematological parameters of heterozygote β-thalassaemia indices, understanding the influence of this interaction is helpful for identification of disease carriers. Objective To determine the effects of α-thalassaemia mutations on the haematological parameters of β-thalassaemia carriers. Method We used gap-PCR and amplification refractory mutation system techniques to find any α- and/or β-thalassaemia mutations in 270 subjects who were suspected to be thalassaemia carriers. The mean values of the haematological parameters in α, β-thalassaemia and β-thalassaemia carriers were compared. Results Significant differences in mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH) and HbA2 were found between the two groups. Patients who were α, β-thalassaemia carriers had higher mean values of MCV and MCH, whereas HbA2 levels were higher in simple β-thalassaemia. No marked differences were found in mean cell haemoglobin (Hb) concentration and Hb blood cell indices. The value of MCV, MCH and HbA2 were significantly different between α, β-thalassaemia and simple β-thalassaemia in men and women, but the mean values of Hb in the two groups differed markedly only in men. Conclusion We conclude that co-inheritance of α- and β-thalassaemia mutations may result in misdiagnosis of β-thalassaemia carriers. Therefore, in genetic counselling of patients with a near-normal range of blood cell indices the possibility that they may carry α, β-thalassaemia mutations must be considered. Source


Saleh-gohari N.,Kerman Medical University | Mohammadi-anaie M.,Genetic Laboratory | Kalantari-khandani B.,Kerman Medical University
Iranian Journal of Cancer Prevention | Year: 2012

Background: Breast cancer is the most common malignancy in Iranian women. Mutations in BRCA1 gene is one of the important genetic predisposing factors in breast cancer. This gene is a tumor suppressor that plays an important role in regulating the functions of RAD51 protein for strand invasion in homologous recombination repair. Methods: The BRCA1 gene has amplified in the DNA isolated from breast cancer patients' leukocytes, using Polymerase Chain Reaction technique. The PCR products have sequenced using an automated DNA sequencer and subsequently obtained data have aligned with the human BRCA1 DNA sequences available online. Results: In this study, we have considered nine different mutations on 60 examined chromosomes from 30 patients, living in Kerman province. A deletion of one adenine (c.1017delA) and insertion of one cytosine (c.969InsC) have found as the most frequent (20%) mutation in this survey. A substitution of thymine for adenine (c.999T>A) has detected as the second common BRCA1 gene defect (6.7%). The other mutations have identified as single nucleotide replacement including: c.792A>C, c.825G>C, c.822T>A, c.1068A>G, c.969A>T and c.966T>C. Conclusion: The identified BRCA1 mutations were in accordance with the previous reports. To our knowledge, four mutations: (c.969InsC, c.792A>C, c.825G>C, c.822T>A) which have identified in this study, have not been previously reported in the literature. A larger cohort study would help identifying all relevant BRCA1 mutations in this population. Source


Saleh-Gohari N.,Kerman Medical University | Khosravi-Mashizi A.,Genetic Laboratory
Hemoglobin | Year: 2010

Mutation of the α-globin gene may result in α-thalassemia (α-thal) which is characterized by a reduction or complete absence of the gene expression. In this study, 607 individuals with low levels of blood cell indices and normal Hb A2 were referred to our laboratory for investigation of any α-thal mutations. We used the gap-polymerase chain reaction (gap-PCR) method and an α-globin strip assay kit to detect the mutation. Our results showed that -α3.7 was the most common mutation (83.8) in the overall mutated alleles of the α-globin gene. The second and third most frequent α-globin gene defects were codon 19 (α2) and IVS-I, -5 ntαα (α2), 5.7 and 4.2, respectively. We found that the spectrum of α-globin gene mutation in Kerman Province was in accordance with what was previously reported in other Iranian provinces where malaria has selected these protective traits. © 2010 Informa UK Ltd. Source


Saleh-Gohari N.,Kerman Medical University | Mohammadi-Anaie M.,Genetic Laboratory
Iranian Journal of Public Health | Year: 2012

Background: We aimed to determine the incidence of co-inheritance as well as interaction of sickle cell trait (SCT) and α thal/β thal mutations in south and south central of Iran. Method: We employed a PCR and restriction fragment length polymorphism techniques to confirm diagnosis of sickle cell trait. All subjects were screened for any α/β -thalassemia mutations using a gap-polymerase chain reaction and amplification refractory mutations system. Results: Our results showed combination of sickle cell trait and β-globin mutation results in a severe clinical course of similar to sickle cell disease, while coinheritance of α-globin gene defects usually modulates the clinical course. A coexistence of sickle cell trait and α-globin gene mutation was the frequent genotype in overall samples (57. 5%). Conclusion: Sickle cell trait mainly co-inherits with α-globin gene mutation in the south and south central region of Iran. This combination modulates hematological indices and interferes with the SCT diagnosis. Source


Paulsson K.,Lund University | Forestier E.,Umea University | Andersen M.K.,Copenhagen University | Autio K.,Helsinki and Uusimaa Hospital Group | And 12 more authors.
Haematologica | Year: 2013

Between 1992 and 2008, 713 high hyperdiploid acute lymphoblastic leukemias in children aged 1-15 years were diagnosed and treated according to the Nordic Society for Pediatric Hematology and Oncology acute lymphoblastic leukemia 1992/2000 protocols. Twenty (2.8%) harbored t(1;19), t(9;22), der(11q23), or t(12;21). The median age of patients with "classic" high hyperdiploidy was lower than that of patients with translocation-positive high hyperdiploidy (P<0.001). Cases with triple trisomies (+4, +10, +17), comprising 50%, had higher modal numbers than the triple trisomy-negative cases (P<0.0001). The probabilities of event-free survival and overall survival were lower for those with white blood cell counts ≥50 ×109/L (P=0.017/P=0.009), ≥5% bone marrow blasts at day 29 (P=0.001/0.002), and for high-risk patients (P<0.001/P=0.003), whereas event-free, but not overall, survival, was higher for cases with gains of chromosomes 4 (P<0.0001), 6 (P<0.003), 17 (P=0.010), 18 (P=0.049), and 22 (P=0.040), triple trisomies (P=0.002), and modal numbers >53/55 (P=0.020/0.024). In multivariate analyses, modal number and triple trisomies were significantly associated with superior event-free survival in separate analyses with age and white blood cell counts. When including both modal numbers and triple trisomies, only low white blood cell counts were significantly associated with superior event-free survival (P=0.009). We conclude that high modal chromosome numbers and triple trisomies are highly correlated prognostic factors and that these two parameters identify the same subgroup of patients characterized by a particularly favorable outcome. © 2013 Ferrata Storti Foundation. Source

Discover hidden collaborations