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Ebrahimi M, Mohammadi-asl J, Rahim F. Molecular spectrum and distribution of hemoglobinopathies in southwest of Iran: a seven-year retrospective study. J Hematop 2020. [DOI: 10.1007/s12308-020-00388-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Hajjari M, Tahmasebi-Birgani M, Mohammadi-asl J, Nasiri H, Kollaee A, Mahmoodi M, Ansari H. Exome sequencing found a novel homozygous deletion in ADCK3 gene involved in autosomal recessive spinocerebellar ataxia. Gene 2019; 708:10-13. [DOI: 10.1016/j.gene.2019.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 04/19/2019] [Accepted: 05/06/2019] [Indexed: 11/12/2022]
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Golchin N, Hajjari M, Mohammadi-asl J, Tahmasebi Birgani M. Identification of the mutation p.S867P in the PTPRQ gene in an Iranian family with hearing impairment. Meta Gene 2017. [DOI: 10.1016/j.mgene.2017.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Torkamandi S, Gholami M, Mohammadi-asl J, Rezaie S, Zaimy MA, Omrani MD. A Novel Splicesite Mutation in the EDAR Gene Causes Severe Autosomal Recessive Hypohydrotic (Anhidrotic) Ectodermal Dysplasia in an Iranian Family. Int J Mol Cell Med 2016; 5:260-263. [PMID: 28357203 PMCID: PMC5353988] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 09/15/2016] [Indexed: 12/04/2022]
Abstract
Hypohidrotic ectodermal dysplasia (HED) is a rare congenital disorder arising from deficient development of ectoderm-derived structures including skin, nails, glands and teeth. The phenotype of HED is associated with mutation in EDA, EDAR, EDARADD and NEMO genes, all of them disruptingNF-κB signaling cascade necessary for initiation, formation and differentiation in the embryo and adult. Here we describe a novel acceptor splice site mutation c.730-2 A>G(IVS 8-2 A>G) in EDAR gene in homozygous form in all affected members of a family,and in heterozygous form in carriers. Bioinformatics analysis showed that this mutation can create a new broken splicing site and lead to aberrant splicing.
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Affiliation(s)
- Shahram Torkamandi
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Milad Gholami
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Javad Mohammadi-asl
- Noor Genetics Laboratory, Ahvaz, Iran.,Ahvaz Jundishapour University of Medical Sciences, Ahvaz, Iran.
| | - Somaye Rezaie
- Department of Neurology, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Ali Zaimy
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mir Davood Omrani
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Corresponding author: Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. E-mail:
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Gholami M, Saki G, Hemadi M, Khodadadi A, Mohammadi-asl J. Melatonin improves spermatogonial stem cells transplantation efficiency in azoospermic mice. Iran J Basic Med Sci 2014; 17:93-9. [PMID: 24711891 PMCID: PMC3976745] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 10/25/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVE(S) Transplantation quality improvement and reduction of cellular damage are important goals that are now considered by researchers. Melatonin is secreted from the pineal gland and some organs such as testes. According to beneficial effects of melatonin (such as its antioxidant and antiapoptotic properties), researchers have proposed that the use of melatonin may improve transplantation quality. The aim of this study was to investigate the effects of melatonin on the spermatogonial stem cells transplantation in the azoospermic mice. MATERIALS AND METHODS The testes of the BALB/c mice pups (6-day-old) after vitrified-thawed, were digested with enzymes (collagenase, DNaseΙ, trypsin-EDTA) to disperse the cells. The SSCs, type A, were isolated from the rest of testicular cells by MACS. Spermatogonial stem cells were labeled with PKH26 fluorescent kit. Labeled spermatogonial stem cells were transplanted into the testes of infertile mice (busulfan 40 mg/kg). The mice died two months after transplantation and the efficiency of spermatogenesis was investigated. TNP2 and hematoxyline-eosin staining were used to detect the efficiency of cell transplantation. RESULTS TNP2 were detected in the samples that received melatonin and spermatogonial stem cells transplantation, simultaneously. TNP2 was not detectable in the transplant recipient mice that received placebo for 10 weeks (control group). According to hematoxyline-eosin staining, melatonin improved structure of testes. CONCLUSION Administration of melatonin (20 mg/kg) simultaneously with transplantation of spermatogonial stem cells in azoospermia mouse testis increases the efficiency of transplantation and improves structural properties of the testes tissue.
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Affiliation(s)
- Mohammadreza Gholami
- Department of Anatomy, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Ghasem Saki
- Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran ,Corresponding author: Ghasem Saki. Department of Anatomical Science, Faculty of Medicine, Ahvaz Joundishapour University of Medical Science, Ahvaz, Iran. Tel: +98-611-3362411; Fax: +98-611-367562;
| | - Masoud Hemadi
- Fertility and Infertility Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Khodadadi
- Department of Immunology, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Javad Mohammadi-asl
- Department of Medical Genetics, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Galehdari H, Saki N, Mohammadi-asl J, Rahim F. Meta-analysis diagnostic accuracy of SNP-based pathogenicity detection tools: a case of UTG1A1 gene mutations. Int J Mol Epidemiol Genet 2013; 4:77-85. [PMID: 23875061 PMCID: PMC3709112] [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] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 06/12/2013] [Indexed: 06/02/2023]
Abstract
Crigler-Najjar syndrome (CNS) type I and type II are usually inherited as autosomal recessive conditions that result from mutations in the UGT1A1 gene. The main objective of the present review is to summarize results of all available evidence on the accuracy of SNP-based pathogenicity detection tools compared to published clinical result for the prediction of in nsSNPs that leads to disease using prediction performance method. A comprehensive search was performed to find all mutations related to CNS. Database searches included dbSNP, SNPdbe, HGMD, Swissvar, ensemble, and OMIM. All the mutation related to CNS was extracted. The pathogenicity prediction was done using SNP-based pathogenicity detection tools include SIFT, PHD-SNP, PolyPhen2, fathmm, Provean, and Mutpred. Overall, 59 different SNPs related to missense mutations in the UGT1A1 gene, were reviewed. Comparing the diagnostic OR, PolyPhen2 and Mutpred have the highest detection 4.983 (95% CI: 1.24 - 20.02) in both, following by SIFT (diagnostic OR: 3.25, 95% CI: 1.07 - 9.83). The highest MCC of SNP-based pathogenicity detection tools, was belong to SIFT (34.19%) followed by Provean, PolyPhen2, and Mutpred (29.99%, 29.89%, and 29.89%, respectively). Hence the highest SNP-based pathogenicity detection tools ACC, was fit to SIFT (62.71%) followed by PolyPhen2, and Mutpred (61.02%, in both). Our results suggest that some of the well-established SNP-based pathogenicity detection tools can appropriately reflect the role of a disease-associated SNP in both local and global structures.
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Affiliation(s)
- Hamid Galehdari
- Faculty of Science, Department of Genetic, Shahid Chamran UniverityAhvaz, Iran
| | - Najmaldin Saki
- Research Center of Thalassemia & Hemoglobinopathy, Ahvaz Jundishapur University of Medical SciencesAhvaz, Iran
- Petroleum and Environmental Pollutants Research Center, Ahvaz Jundishapur University of Medical SciencesAhvaz, Iran
| | - Javad Mohammadi-asl
- Department of medical Genetics, Ahvaz Jundishapur University of Medical sciencesAhvaz, Iran
| | - Fakher Rahim
- Toxicology Research Center, Ahvaz Jundishapur University of Medical sciencesAhvaz, Iran
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Kheirollahi M, Mehrazin M, Kamalian N, Mohammadi-asl J, Mehdipour P. Telomerase activity in human brain tumors: astrocytoma and meningioma. Cell Mol Neurobiol 2013; 33:569-74. [PMID: 23512291 DOI: 10.1007/s10571-013-9923-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 03/08/2013] [Indexed: 02/08/2023]
Abstract
Somatic cells do not have telomerase activity but immortalized cell lines and more than 85 % of the cancer cells show telomerase activation to prevent the telomere from progressive shortening. The activation of this enzyme has been found in a variety of human tumors and tumor-derived cell lines, but only few studies on telomerase activity in human brain tumors have been reported. Here, we evaluated telomerase activity in different grades of human astrocytoma and meningioma brain tumors. In this study, assay for telomerase activity performed on 50 eligible cases consisted of 26 meningioma, 24 astrocytoma according to the standard protocols. In the brain tissues, telomerase activity was positive in 39 (65 %) of 50 patients. One sample t test showed that the telomerase activity in meningioma and astrocytoma tumors was significantly positive entirely (P < 0.001). Also, grade I of meningioma and low grades of astrocytoma (grades I and II) significantly showed telomerase activity. According to our results, we suggest that activation of telomerase is an event that starts mostly at low grades of brain including meningioma and astrocytoma tumors.
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Affiliation(s)
- Majid Kheirollahi
- Pediatric Inherited Diseases Research Center, Genetics and Molecular Biology Department, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
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Mohammadi-asl J, Larijani B, Khorgami Z, Tavangar SM, Haghpanah V, Kheirollahi M, Mehdipour P. Qualitative and quantitative promoter hypermethylation patterns of the P16, TSHR, RASSF1A and RARβ2 genes in papillary thyroid carcinoma. Med Oncol 2011; 28:1123-8. [PMID: 20535589 DOI: 10.1007/s12032-010-9587-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Accepted: 05/25/2010] [Indexed: 02/08/2023]
Abstract
The aim of this study was to evaluate the frequency (as qualitative analysis) and level (as quantitative analysis) of promoter hypermethylation of four genes, P16, TSHR, RASSF1A and RARβ2, and to assess their diagnostic or prognostic values in papillary thyroid tumors. Fifty formalin-fixed paraffin-embedded (FFPE) samples consisting of 25 malignant tumors and 25 non-malignant thyroid tumors were analyzed using COBRA method. Promoter hypermethylation of P16, TESH, RASSF1A and RARB2 genes was noted not only in 10, 7, 19 and 13 cases of malignant tumors, but also it was detected in 7, 11, 23 and 8 cases of benign tumors, respectively, limiting its diagnostic usefulness. The quantitative hypermethylation level was significantly higher in malignant tumors compared to benign tumors for P16 (P<0.004), TSHR (P<0.006) and RASSF1A (P<0.001), but the methylation level of RARβ2 (P<0.31) showed considerable overlap between the two groups. The mean levels of hypermethylation of P16, TSHR and RASSF1A genes were significantly higher in malignant papillary thyroid tumors compared to benign tumors and by choosing the appropriate cutoff for each gene, we could distinguish 9, 9 and 8 PTCs from 25 cases by P16, RASSF1A and TSHR methylation analysis, respectively. According to our results, these three genes, in combination, may be useful as molecular markers. The findings of present study imply that the P16, TSHR and RASSF1A gene promoter hypermethylation may play important roles in the pathogenesis of PTC and can be a potential biomarker for selecting patients with PTC.
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Affiliation(s)
- Javad Mohammadi-asl
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, and Department of Surgery, Shariati Hospital, Tehran, Iran
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