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Moghimi P, Hashemi-Gorji F, Jamshidi S, Tehrani Fateh S, Salehpour S, Sadeghi H, Norouzi Rostami F, Mirfakhraie R, Miryounesi M, Ghasemi MR. Broadening the Phenotype and Genotype Spectrum of Glycogen Storage Disease by Unraveling Novel Variants in an Iranian Patient Cohort. Biochem Genet 2024:10.1007/s10528-024-10787-5. [PMID: 38619706 DOI: 10.1007/s10528-024-10787-5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 03/15/2024] [Indexed: 04/16/2024]
Abstract
Glycogen storage diseases (GSDs) are a group of rare inherited metabolic disorders characterized by clinical, locus, and allele heterogeneity. This study aims to investigate the phenotype and genotype spectrum of GSDs in a cohort of 14 families from Iran using whole-exome sequencing (WES) and variant analysis. WES was performed on 14 patients clinically suspected of GSDs. Variant analysis was performed to identify genetic variants associated with GSDs. A total of 13 variants were identified, including six novel variants, and seven previously reported pathogenic variants in genes such as AGL, G6PC, GAA, PYGL, PYGM, GBE1, SLC37A4, and PHKA2. Most types of GSDs observed in the cohort were associated with hepatomegaly, which was the most common clinical presentation. This study provides valuable insights into the phenotype and genotype spectrum of GSDs in a cohort of Iranian patients. The identification of novel variants adds to the growing body of knowledge regarding the genetic landscape of GSDs and has implications for genetic counseling and future therapeutic interventions. The diverse nature of GSDs underscores the need for comprehensive genetic testing methods to improve diagnostic accuracy. Continued research in this field will enhance our understanding of GSDs, ultimately leading to improved management and outcomes for individuals affected by these rare metabolic disorders.
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Affiliation(s)
- Parinaz Moghimi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- School of Medicine, Islamic Azad University, Tehran Medical sciences, Tehran, Iran
| | - Farzad Hashemi-Gorji
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sanaz Jamshidi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Shadab Salehpour
- Department of Pediatrics, Clinical Research Development Unit, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Sadeghi
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Reza Mirfakhraie
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Miryounesi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Reza Ghasemi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Tehrani Fateh S, Mohammad Zadeh N, Salehpour S, Hashemi-Gorji F, Omidi A, Sadeghi H, Mirfakhraie R, Moghimi P, Keyvanfar S, Mohammadi Sarvaleh S, Miryounesi M, Ghasemi MR. Comprehensive review and expanding the genetic landscape of Cornelia-de-Lange spectrum: insights from novel mutations and skin biopsy in exome-negative cases. BMC Med Genomics 2024; 17:20. [PMID: 38216990 PMCID: PMC10787426 DOI: 10.1186/s12920-024-01798-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/08/2024] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND Cornelia de Lange Syndrome (CdLS) is a rare genetic disorder characterized by a range of physical, cognitive, and behavioral abnormalities. This study aimed to perform a comprehensive review of the literature on CdLS and investigate two cases of CdLS with distinct phenotypes that underwent WES to aid in their diagnosis. METHODS We conducted a comprehensive review of the literature on CdLS along with performing whole-exome sequencing on two CdLS patients with distinct phenotypes, followed by Sanger sequencing validation and in-silico analysis. RESULTS The first case exhibited a classic CdLS phenotype, but the initial WES analysis of blood-derived DNA failed to identify any mutations in CdLS-related genes. However, a subsequent WES analysis of skin-derived DNA revealed a novel heterozygous mutation in the NIPBL gene (NM_133433.4:c.6534_6535del, p.Met2178Ilefs*8). The second case was presented with a non-classic CdLS phenotype, and WES analysis of blood-derived DNA identified a heterozygous missense variant in the SMC1A gene (NM_006306.4:c.2320G>A, p.Asp774Asn). CONCLUSIONS The study shows the importance of considering mosaicism in classic CdLS cases and the value of WES for identifying genetic defects. These findings contribute to our understanding of CdLS genetics and underscore the need for comprehensive genetic testing to enhance the diagnosis and management of CdLS patients.
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Affiliation(s)
- Sahand Tehrani Fateh
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Nadia Mohammad Zadeh
- School of Medicine, Islamic Azad University Tehran Medical sciences, Tehran, Iran
| | - Shadab Salehpour
- Department of Pediatrics, Clinical Research Development Unit, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzad Hashemi-Gorji
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ashkan Omidi
- School of Medicine, Islamic Azad University Tehran Medical sciences, Tehran, Iran
| | - Hossein Sadeghi
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Mirfakhraie
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parinaz Moghimi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- School of Medicine, Islamic Azad University Tehran Medical sciences, Tehran, Iran
| | - Sepideh Keyvanfar
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Miryounesi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Reza Ghasemi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Tehrani Fateh S, Bagheri S, Sadeghi H, Salehpour S, Fazeli Bavandpour F, Sadeghi B, Jamshidi S, Tonekaboni SH, Mirfakhraie R, Miryounesi M, Ghasemi MR. Extending and outlining the genotypic and phenotypic spectrum of novel mutations of NALCN gene in IHPRF1 syndrome: identifying recurrent urinary tract infection. Neurol Sci 2023; 44:4491-4498. [PMID: 37452996 DOI: 10.1007/s10072-023-06960-0] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
Infantile hypotonia with psychomotor retardation and characteristic facies 1 (IHPRF1) is caused by biallelic mutations in the NALCN gene, the major ion channel responsible for the background Na + conduction in neurons. Through whole-exome sequencing (WES), we report three novel homozygous variants in three families, including c.1434 + 1G > A, c.3269G > A, and c.2648G > T, which are confirmed and segregated by Sanger sequencing. Consequently, intron 12's highly conserved splice donor location is disrupted by the pathogenic c.1434 + 1G > A variation, most likely causing the protein to degrade through nonsense-mediated decay (NMD). Subsequently, a premature stop codon is thus generated at amino acid 1090 of the protein as a result of the pathogenic c.3269G > A; p.W1090* variation, resulting in NMD or truncated protein production. Lastly, the missense mutation c.2648G > T; p.G883V can play a critical role in the interplay of functional domains. This study introduces recurrent urinary tract infections for the first time, broadening the phenotypic range of IHPRF1 syndrome in addition to the genotypic spectrum. This trait may result from insufficient bladder emptying, which may be related to the NALCN channelosome's function in background Na + conduction. This work advances knowledge about the molecular genetic underpinnings of IHPRF1 and introduces a novel phenotype through the widespread use of whole exome sequencing.
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Affiliation(s)
- Sahand Tehrani Fateh
- School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saman Bagheri
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Sadeghi
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shadab Salehpour
- Department of Pediatrics, Clinical Research Development Unit, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Behnia Sadeghi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sanaz Jamshidi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Hassan Tonekaboni
- Department of Pediatric Neurology, School of Medicine, Pediatric Neurology Research Center, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Mirfakhraie
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Miryounesi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad-Reza Ghasemi
- Center for Comprehensive Genetic Services, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Sardarpour N, Bagherian H, Zafarghandi Motlagh F, Shirzadeh T, Asnavandi S, Younesikhah S, Salehpour S, Setoodeh A, Alaei MR, Zeinali S. Mutational Analysis and Genotype Investigation of Less Known Gaucher Mutations through Haplotype Analysis in Iranian Gaucher Patients. Int J Mol Cell Med 2023; 12:40-50. [PMID: 37942259 PMCID: PMC10629722 DOI: 10.22088/ijmcm.bums.12.1.40] [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: 11/12/2022] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 11/10/2023]
Abstract
Gaucher's disease (GD) is the most frequent lysosomal storage disorder resulting from a deficiency of the enzyme glucocerebrosidase (GBA) which causes the accumulation of glucocerebroside. More than 500 mutations have been reported on the GBA gene so far. In this study, we aimed to investigate more on the genotype of less known mutations through haplotype analysis to explain their disease-causing inheritance. Eight patients and three carriers from nine different families were enrolled in the study. DNA sequencing of all GBA gene's exons was performed and pathogenicity of the mutations was investigated. Using GBA gene-linked STR markers, allele segregations were determined in some families. A total of six different mutations were determined. Five and three patients were identified to carry mutations in homozygous and compound heterozygote patterns respectively, three participants also were identified as carriers. The most prevalent mutations were c.1448 T>C and RecNcil, however, three less common mutations were identified (i.e., c.1223 C>T, c.1315 A>G, and c.1214 G>C). In conclusion, we evaluated six different mutations in Iranian patients and elucidated the inheritance of the three less-known mutations by linkage analysis.
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Affiliation(s)
- Negar Sardarpour
- Department of Biotechnology, College of Science, University of Tehran, Tehran, Iran.
| | - Hamideh Bagherian
- Kawsar Human Genetics Research Center, No. 41 Majlesi St., Vali Asr St, Tehran, Iran.
| | | | - Tina Shirzadeh
- Kawsar Human Genetics Research Center, No. 41 Majlesi St., Vali Asr St, Tehran, Iran.
| | - Sadaf Asnavandi
- Kawsar Human Genetics Research Center, No. 41 Majlesi St., Vali Asr St, Tehran, Iran.
| | - Shahrzad Younesikhah
- Kawsar Human Genetics Research Center, No. 41 Majlesi St., Vali Asr St, Tehran, Iran.
| | - Shadab Salehpour
- Department of Pediatric Endocrinology and Metabolism, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Aria Setoodeh
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Reza Alaei
- Department of Pediatric Endocrinology and Metabolism, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Sirous Zeinali
- Kawsar Human Genetics Research Center, No. 41 Majlesi St., Vali Asr St, Tehran, Iran.
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5
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Abtahi R, Karimzadeh P, Aryani O, Akbarzadeh D, Salehpour S, Rezayi A, Tonekaboni SH, Emameh RZ, Houshmand M. Identification of novel mutations among Iranian NPC1 patients: a bioinformatics approach to predict pathogenic mutations. Hereditas 2022; 159:8. [PMID: 35086560 PMCID: PMC8793247 DOI: 10.1186/s41065-022-00224-1] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 12/29/2021] [Indexed: 11/24/2022] Open
Abstract
Background Niemann-Pick disease type C (NPC) is a rare lysosomal neurovisceral storage disease caused by mutations in the NPC 1 (95%) or NPC2 (5%) genes. The products of NPC1 and NPC2 genes play considerable roles in glycolipid and cholesterol trafficking, which could consequently lead to NPC disease with variable phenotypes displaying a broad spectrum of symptoms. Materials In the present study 35 Iranian NPC unrelated patients were enrolled. These patients were first analysed by the Filipin Staining test of cholesterol deposits in cells for NPC diagnostics. Genomic DNA was extracted from the samples of peripheral blood leukocytes in EDTA following the manufacturer's protocol. All exon–intron boundaries and coding exons of the NPC1gene were amplified by polymerase chain reaction (PCR) using appropriate sets of primers. Thereafter, the products of PCR were sequenced and analysed using the NCBI database (https://blast.ncbi.nlm.nih.gov/Blast.cgi). The variants were reviewed by some databases including the Human Gene Mutation Database (HGMD) (http://www.hgmd.cf.ac.uk/ac/index.php) and ClinVar (https://www.ncbi.nlm.nih.gov/clinvar (. Moreover, all the variants were manually classified in terms of the American College of Medical Genetics and Genomics (ACMG) guideline. Results The sequence analysis revealed 20 different variations, 10 of which are new, including one nonsense mutation (c.406C > T); three small deletions, (c.3126delC, c.2920_2923delCCTG, and c.2037delG); and six likely pathogenic missense mutations, (c.542C > A, c.1970G > A, c.1993C > G, c.2821 T > C, c.2872C > G, and c.3632 T > A). Finally, the pathogenicity of these new variants was determined using the ACMG guidelines. Conclusion The present study aimed to facilitate the prenatal diagnosis of NPC patients in the future. In this regard, we identified 10 novel mutations, and verified that the majority of them occurred in six NPC1 exons (5, 8, 9, 13, 19, and 21), that should be considered with a high priority for Iranian patients' cost-effective evaluation.
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Affiliation(s)
- Rezvan Abtahi
- Department of Medical Genetics, National Institute for Genetic Engineering and Biotechnology, (NIGEB), 14965/161, Tehran, Iran
| | - Parvaneh Karimzadeh
- Pediatric Neurology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Diba Akbarzadeh
- Student's Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shadab Salehpour
- Department of Pediatric Endocrinology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Rezayi
- Department of Pediatrics Neurology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Hassan Tonekaboni
- Pediatric Neurology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Zolfaghari Emameh
- Department of Energy and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), 14965/161, Tehran, Iran
| | - Massoud Houshmand
- Department of Medical Genetics, National Institute for Genetic Engineering and Biotechnology, (NIGEB), 14965/161, Tehran, Iran. .,Department of Medical Laboratory Science, Knowledge University, Erbil, Kurdistan Region, Iraq.
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6
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Ghaffari SR, Rafati M, Shadnoush M, Pourbabaee S, Aghighi M, Samiee SM, Kermanchi J, Alaei MR, Salehpour S, Amirkashani D, Setoodeh A, Sarkhail P, Badv RS, Aminzadeh M, Shiva S, Eshraghi P, Moravej H, Hashemipour M, Rostampour N, Hamidieh AA, Shamsian BS, Shams S, Zamanfar D, Ebrahimi A, Otadi A, Tara SZ, Barati Z, Fakhri L, Hoseini A, Amiri H, Ramandi S, Mostofinezhad N, Kani ZP, Mohammadyari E, Khosravi M, Saadati M, Hoseininasab F, Khorshid HRK, Modaberisaber Y. Molecular characterization of a large cohort of Mucopolysaccharidosis patients: Iran Mucopolysaccharidosis RE-diagnosis Study (IMPRESsion). Hum Mutat 2022; 43:e1-e23. [PMID: 35005816 DOI: 10.1002/humu.24328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 12/03/2021] [Accepted: 01/05/2022] [Indexed: 01/30/2023]
Abstract
Mucopolysaccharidoses (MPSs) are rare, heterogeneous inborn errors of metabolism (IEM) diagnosed through a combination of clinical, biochemical, and genetic investigations. The aim of this study was molecular characterization of the largest cohort of Iranian MPS patients (302 patients from 289 unrelated families), along with tracking their ethnicity and geographical origins. 185/289 patients were studied using an IEM-targeted NGS panel followed by complementary Sanger sequencing, which led to the diagnosis of 154 MPS patients and 5 non-MPS IEMs (diagnostic yield: 85.9%). Furthermore, 106/289 patients who were referred with positive findings went through re-analysis and confirmatory tests which confirmed MPS diagnosis in 104. Among the total of 258 MPS patients, 225 were homozygous, 90 harbored novel variants, and 9 had copy number variations. MPS IV was the most common type (34.8%) followed by MPS I (22.7%) and MPS VI (22.5%). Geographical origin analysis unveiled a pattern of distribution for frequent variants in ARSB (c.430G>A, c.962T>C [p.Leu321Pro], c.281C>A [p.Ser94*]), GALNS (c.319G>A [p.Ala107Thr], c.860C>T [p.Ser287Leu], c.1042A>G [p.Thr348Ala]), and IDUA (c.1A>C [p.Met1Leu], c.1598C>G [p.Pro533Arg], c.1562_1563insC [p.Gly522Argfs*50]). Our extensive patient cohort reveals the genetic and geographic landscape of MPS in Iran, which provides insight into genetic epidemiology of MPS and can facilitate a more cost-effective, time-efficient diagnostic approach based on the region-specific variants. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Saeed Reza Ghaffari
- Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran.,Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.,Gene Clinic, Tehran, Iran
| | - Maryam Rafati
- Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran.,Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Mahdi Shadnoush
- Department of Clinical Nutrition, Faculty of Nutrition & Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shokooh Pourbabaee
- Deputy of Curative Affairs, Ministry of Health and Medical Education, Tehran, Iran
| | - Mohammad Aghighi
- Transplantation and Diseases Administrationو Deputy of Curative Affairs, Ministry of Health and Medical Education, Tehran, Iran
| | - Siamak Mirab Samiee
- Food and Drug Laboratory Research Center, Tehran, Iran.,General Reference Health Laboratory, Ministry of Health and Medical Education, Tehran, IR
| | - Jamshid Kermanchi
- Transplantation and Diseases Administrationو Deputy of Curative Affairs, Ministry of Health and Medical Education, Tehran, Iran
| | | | | | - Davoud Amirkashani
- Division of Endocrinology and Metabolism, Ali-Asghar Children's Hospital, Iran University of Medical Sciences, Tehran, IR
| | - Aria Setoodeh
- Children's Medical Center, Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Tehran, IR
| | - Peymaneh Sarkhail
- Personalized Medicine and Genometabolomics Research Center, Hope Generation Foundation, Tehran, Iran
| | - Reza Shervin Badv
- Department of Pediatrics, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Tehran, IR
| | - Majid Aminzadeh
- Diabetes Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Khuzestan, IR
| | - Siamak Shiva
- Pediatric Health Research Center, Tabriz University of Medical Sciences, Tabriz, East Azerbaijan, IR
| | - Peyman Eshraghi
- Mashhad University of Medical Sciences, Mashhad, Khorasan Razavi, IR
| | - Hossein Moravej
- Neonatal Research Center, Shiraz University of Medical Sciences, Shiraz, Fars, IR
| | - Mahin Hashemipour
- Metabolic Liver Disease Research Center, Isfahan University of Medical Sciences, Isfahan, Isfahan, IR
| | - Noushin Rostampour
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences Isfahan, Isfahan, Isfahan, IR
| | - Amir Ali Hamidieh
- Pediatric Cell and Gene Therapy Research Center, Tehran University of Medical Sciences, Tehran, Tehran, IR
| | - Bibi Shahin Shamsian
- Pediatric Congenital Hematologic Disorders Research Center, Research, Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sedigheh Shams
- Department of Pathology, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Tehran, IR
| | - Daniel Zamanfar
- Diabetes Research Center, Mazandaran University of Medical Sciences, Sari, IR
| | - Ayoub Ebrahimi
- Pediatric Health Research Center, Tabriz University of Medical Sciences, Tabriz, East Azerbaijan, IR
| | - Ali Otadi
- The University of British Columbia, Faculty of Science, Vancouver, BC, Canada
| | - Seyedeh Zahra Tara
- Pediatric Endocrinology Department, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Zeinab Barati
- Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran.,Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Laya Fakhri
- Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran.,Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Azadeh Hoseini
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Hosna Amiri
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Somayeh Ramandi
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Niusha Mostofinezhad
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | | | | | - Mahsa Khosravi
- Islamic Azad University Tehran Medical Sciences, Tehran, Tehran, IR
| | - Masoome Saadati
- Islamic Azad University Tehran North Branch, Tehran, Tehran, IR
| | - Fatemeh Hoseininasab
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
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Khani S, Barzegari M, Esmaeilizadeh Z, Farsian P, Alaei M, Salehpour S, Setoodeh A, Rohani F, Samavat A, Zekri A, Mirzazadeh R, Sadeghi S, Khatami S. The treatment and clinical follow-up outcome in Iranian patients with tetrahydrobiopterin deficiency. J Pediatr Endocrinol Metab 2021; 34:1157-1167. [PMID: 34214291 DOI: 10.1515/jpem-2021-0155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/12/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES This study aimed to evaluate the biochemical factors, genetic mutations, outcome of treatment, and clinical follow-up data of Iranian patients with tetrahydrobiopterin (BH4) deficiency from April/2016 to March/2020. METHODS Forty-seven BH4 deficiency patients were included in the study and underwent biochemical and genetic analyses. The clinical outcomes of the patients were evaluated after long-term treatment. RESULTS Out of the 47 (25 females and 22 males) BH4 deficiency patients enrolled in the study, 23 were Dihydropteridine reductase (DHPR) deficient patients, 23 were 6-pyruvoyl-tetrahydropterin synthase (PTPS) deficient patients, and one was GTP-Cyclohydrolase 1 deficiency (GTPCH-1) patient. No clinical symptoms were observed in 10 of the DHPR deficient patients (before and after the treatment). Also, most patients diagnosed at an early age had a proper response to the treatment. However, drug therapy did not improve clinical symptoms in three of the patients diagnosed at the age of over 10 years. Also, 16 PTPS deficiency patients who were detected within 6 months and received treatment no clinical symptoms were presented. One of the patients was detected with GTPCH deficiency. Despite being treated with BH4, this patient suffered from a seizure, movement disorder, mental retardation, speech difficulty, and hypotonia. CONCLUSIONS The study results showed that neonatal screening should be carried out in all patients with hyperphenylalaninemia because early diagnosis and treatment can reduce symptoms and prevent neurological impairments. Although the BH4 deficiency outcomes are highly variable, early diagnosis and treatment in the first months of life are crucial for good outcomes.
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Affiliation(s)
- Soghra Khani
- Department of Biochemistry, Pasteur Institute of Iran, Tehran, Iran
| | - Mina Barzegari
- Department of Biochemistry, Pasteur Institute of Iran, Tehran, Iran
| | | | - Pantea Farsian
- Department of Biochemistry, Pasteur Institute of Iran, Tehran, Iran
| | - Mohammadreza Alaei
- Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shadab Salehpour
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aria Setoodeh
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Rohani
- Department of Pediatrics Endocrinology and Metabolism, Ali Asghar Children's Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Ashraf Samavat
- Genetics Office, CDC, Ministry of Health of Iran, Tehran, Iran
| | - Ali Zekri
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Sedigheh Sadeghi
- Department of Biochemistry, Pasteur Institute of Iran, Tehran, Iran
| | - Shohreh Khatami
- Department of Biochemistry, Pasteur Institute of Iran, Tehran, Iran
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Abtahi R, Karimzadeh P, Rezayi A, Salehpour S, Akbarzadeh D, Tonekaboni SH, Emameh RZ, Houshmand M. Analysis of the HEXA, HEXB, ARSA, and SMPD1 Genes in 68 Iranian Patients. J Mol Neurosci 2021; 72:555-564. [PMID: 34554397 DOI: 10.1007/s12031-021-01907-6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/31/2021] [Indexed: 11/26/2022]
Abstract
Lysosomal storage diseases (LSDs) are known as genetic disorders with an overall prevalence of 1 per 7700 live births. Sphingolipidosis, which is a subgroup of LSDs, is resulted from mutations in the coding genes of specific enzymes of sphingolipid hydrolases. The current study aimed to provide additional knowledge on the genotype of sphingolipidoses disease among Iranian patients affected by the disease. In this research, we studied 68 unrelated Iranian patients diagnosed with one kind of sphingolipidoses from 2014 to 2019. Thereafter, genomic DNA was isolated from their peripheral blood leukocytes samples in EDTA in terms of the manufacturer's protocol. All the coding exons and exon-intron boundaries of the related genes were sequenced and then analyzed using the NCBI database. Finally, they were reviewed using some databases such as the Human Gene Mutation Database (HGMD) and ClinVar ( https://www.ncbi.nlm.nih.gov/clinva ). By studying 22 MLD patients, 18 different variations of the ARSA gene were found, one of which was new including, named as c.472 T > G p. (Cys158Gly). Out of 15 Sandhoff disease (SD) patients, 11 different variations of the HEXB gene were found. Correspondingly, the c.1083-2delA was not reported earlier. By investigating 21 Iranian patients with Tay-Sachs disease (TSD), one new variant was found as c.622delG. The study of 10 Niemann-Pick disease A/B (NPDA/B (patients has led to the identification of 9 different SMPD1 gene variations, among which 3 variations were novel mutations. The results of the present study can be expanded to the genotypic spectrum of Iranian patients with MLD, SD, TSD, and NPD diseases and also used to innovate more effective methods for the detection of genetic carriers as well as diagnosing and counseling of Iranian patients affected with these disorders.
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Affiliation(s)
- Rezvan Abtahi
- Department of Medical Genetics, National Institute for Genetic Engineering and Biotechnology (NIGEB), 14965/161, Tehran, Iran
| | - Parvaneh Karimzadeh
- Pediatric Neurology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Rezayi
- Department of Pediatrics Neurology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shadab Salehpour
- Department of Pediatric Endocrinology , Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Diba Akbarzadeh
- Student's Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Hassan Tonekaboni
- Pediatric Neurology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Zolfaghari Emameh
- Department of Energy and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), 14965/161, Tehran, Iran
| | - Massoud Houshmand
- Department of Medical Genetics, National Institute for Genetic Engineering and Biotechnology (NIGEB), 14965/161, Tehran, Iran.
- Department of Medical Laboratory Science, Knowledge University, Kurdistan Region of Iraq, Erbil, Iraq.
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Eghbali M, Fatemi KS, Salehpour S, Abiri M, Saei H, Talebi S, Olyaei NA, Yassaee VR, Modarressi MH. Whole-Exome Sequencing Uncovers Novel Causative Variants and Additional Findings in Three Patients Affected by Glycogen Storage Disease Type VI and Fanconi-Bickel Syndrome. Front Genet 2021; 11:601566. [PMID: 33505429 PMCID: PMC7831547 DOI: 10.3389/fgene.2020.601566] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/07/2020] [Indexed: 01/08/2023] Open
Abstract
Glycogen storage diseases (GSDs) are the heterogeneous group of disorders caused by mutations in at least 30 different genes. Different types of GSDs, especially liver GSDs, take overlapping symptoms and can be clinically indistinguishable. This survey evaluated the use of whole-exome sequencing (WES) for the genetic analysis of the liver GSD-suspected patients in three unrelated families. An in-house filtering pipeline was used to assess rare pathogenic variants in GSD-associated genes, autosomal recessive/mendelian disorder genes (carrier status for genetic counseling subjects), and the ACMG's list of 59 actionable genes. For the interpretation of the causative variants and the incidental/secondary findings, ACMG guidelines were applied. Additionally, we have explored PharmGKB class IA/IB pharmacogenetic variants. The segregation analysis was performed using Sanger sequencing for the novel causative variants. Bioinformatics analysis of the exome data in three individuals revealed three novel homozygous causative variants in the GSD-associated genes. The first variant, c.298_307delATGATCAACC in PYGL gene has related to HERS disease (GSD VI). Both variants of c.1043dupT and c.613-1G > C in SLC2A2 gene have been associated with Fanconi-Bickel syndrome (GSDXI). Eight pathogenic/likely pathogenic medical actionable findings in Mendelian disease genes and 10 pharmacogenetic variants with underlying drug response phenotypes have been identified. No known/expected pathogenic variants were detected in the ACMG's list of 59 actionable genes. The logical filtering steps can help in finding other medical actionable secondary/incidental findings as well as effectively identifying the causative variants in heterogeneous conditions such as GSDs. Three novel variants related to GSD genes recognized in liver GSD-suspected patients with early infantile and childhood-age onset.
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Affiliation(s)
- Maryam Eghbali
- Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Kiyana Sadat Fatemi
- Dr. Zenali's Medical Genetics Laboratory, Kawsar Human Genetics Research Center, Tehran, Iran
| | - Shadab Salehpour
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Pediatric Endocrinology and Metabolism, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Abiri
- Shahid Akbarabadi Clinical Research Development Unit, Iran University of Medical Sciences, Tehran, Iran.,Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hassan Saei
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Talebi
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nasrin Alipour Olyaei
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Reza Yassaee
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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10
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Rezazahehazari M, Sahatfardi F, Zarei F, Ebrahimi Hariri A, Salehpour S, Soori H. Risk assessment of mortality from silicosis and lung cancer in workers of machine factories and traditional brick production workshops with crystalline silica exposure. Occup Med (Lond) 2020. [DOI: 10.18502/tkj.v12i3.4984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Introduction: Exposure to dust is an essential factor in the brick production industry. Determining the mortality rate from silicosis and lung cancer is very important in exposure to crystalline silica dust. Therefore, this study was conducted to risk assessment of workers in machine factories and traditional brick production workshops.
Materials and Methods: This cross-sectional study was conducted in 2016 in a machine factory and five traditional active brick production workshops in Qarchak and Varamin city located in the southeast of Tehran. All employees of a brick-making machine factory (40 people) and five traditional brick-making workshops (30 people) were selected by census sampling. Their exposure to total respiratory dust and respirable crystalline silica was evaluated by the NIOSH0600 method and NIOSH7602 optimal method. Mortality risk assessment from silicosis and lung cancer was performed based on Mannetej and Rice models. Data were analyzed by t-test after entering SPSS19 software.
Results: The average concentrations of crystalline silica and total respiratory dust in traditional workshops are 0.651 ±0.69 and 28.27 ± 23.05, and in a machine factory are 0.297± 0.27 and 17.6 ±8.6 mg / m3. The T-test showed a significant difference between the traditional and mechanical brick factory in occupational exposure to total respiratory dust (P=0.001). However, no significant difference was observed in exposure to crystalline silica (P=0.107). In both traditional and machine brick factory, the risk of death from silicosis and lung cancer is unacceptable.
Conclusion: The results showed that the industry's mechanization has reduced exposure to total respiratory dust and crystalline silica and reduces the risk of death from lung cancer. But the risk of death from lung cancer and silicosis is still high in both traditional and mechanical factories
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11
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Hashemi-Gorji F, Salehpour S, Miryounesi M, Mirfakhraie R, Yassaee VR. A novel SRD5A2 mutation in an Iranian family with sex development disorder. Andrologia 2020; 53:e13847. [PMID: 33099786 DOI: 10.1111/and.13847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/11/2020] [Accepted: 08/29/2020] [Indexed: 01/21/2023] Open
Abstract
Disorders of sex development (DSD) are different types of conditions that their accurate diagnosis by using conventional phenotypic and biochemical approaches is a challenging issue. Precise determination of DSD is critical due to the detection of possible life-threatening associated disorders. It may also assist parents in choosing the most suitable management for their affected child. In this study, two affected kids born from consanguineous families who were clinically diagnosed for sex development disorder were investigated for the main cause of the disease. Biochemical analysis failed to make an accurate diagnosis. Karyotype analysis showed an abnormal sex chromosome pattern. Whole exome sequencing was sequentially applied to precisely ascertain the genetic cause of the disease. A novel deletion, g.40936_53878del12943insTG (NG_008365.1), and one known mutation, c.586G>A (p.Gly196Ser), were detected in SRD5A2 gene in case I and case II respectively. Further analysis was performed using polymerase chain reaction, primer walking and Sanger sequencing to detect the nucleotides changes accurately. Segregation analysis in the families confirmed 13kb novel homozygous deletion of SRD5A2 in case I and c.586G>A in case II. The present study confirms the diagnostic value of whole exome sequencing in the detection of DSD aetiology, especially when several differential diagnoses are possible.
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Affiliation(s)
| | - Shadab Salehpour
- Department of Pediatrics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Miryounesi
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Mirfakhraie
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Reza Yassaee
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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12
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Karamian A, Nazarian H, Ziai SA, Zarnani AH, Salehpour S, Paktinat S, Novin MG. Pyrvinium pamoate inhibits proliferation and invasion of human endometriotic stromal cells. Hum Exp Toxicol 2019; 39:662-672. [DOI: 10.1177/0960327119896612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Endometriosis is characterized by the presence of functional endometrial tissue in other pelvic organs. This gynecologic problem occurs in 35–50% of women with pain and infertility. Endometriotic cells share some characteristics such as proliferation, migration, and invasion with tumor cells. Pyrvinium pamoate, an anthelmintic drug approved by the Food and Drug Administration, could inhibit the Wnt/β-catenin signaling pathway and its anticancer effects were examined by several researchers. In this study, 12 ectopic and eutopic endometrial biopsies from females with ovarian endometrioma and 12 endometrial biopsies from nonendometriotic females were obtained. Ectopic (EESCs), eutopic (EuESCs), and control (CESCs) endometrial stromal cells were isolated. Then, the effect of pyrvinium pamoate on the proliferation and invasiveness of in vitro cultured cells was evaluated. The proliferation of CESCs, EuESCs, and EESCs was significantly decreased after treatment with pyrvinium pamoate. In addition, treatment with pyrvinium pamoate significantly inhibited the invasiveness of CESCs, EuESCs, and EESCs compared to nontreated groups. The results of the present research showed that pyrvinium pamoate inhibits the proliferation and invasion of human endometriotic stromal cells in vitro, further investigations on the therapeutic potential of this compound in endometriosis are required.
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Affiliation(s)
- A Karamian
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H Nazarian
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Men’s Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - SA Ziai
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - A-H Zarnani
- Reproductive Immunology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - S Salehpour
- Department of Obstetrics and Gynecology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S Paktinat
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Men’s Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - MG Novin
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Men’s Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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13
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Ravesh Z, Yassaee VR, Tonekaboni SH, Razzaghy-Azar M, Hashemi-Gorji F, Salehpour S, Miryounesi M, Ghafouri-Fard S. Next generation sequencing elucidated a clinically undiagnosed metabolic disorder - An Iranian family with hereditary orotic aciduria. Gene Reports 2019. [DOI: 10.1016/j.genrep.2019.100457] [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: 11/16/2022]
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Shirzadeh T, Saeidian AH, Bagherian H, Salehpour S, Setoodeh A, Alaei MR, Youssefian L, Samavat A, Touati A, Fallah MS, Vahidnezhad H, Karimipoor M, Azadmehr S, Raeisi M, Bandehi Sarhadi A, Zafarghandi Motlagh F, Jamali M, Zeinali Z, Abiri M, Zeinali S. Molecular genetics of a cohort of 635 cases of phenylketonuria in a consanguineous population. J Inherit Metab Dis 2018; 41:1159-1167. [PMID: 30159852 DOI: 10.1007/s10545-018-0228-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 06/09/2018] [Accepted: 06/26/2018] [Indexed: 11/28/2022]
Abstract
Phenylketonuria (PKU) is an inborn error of amino acid metabolism caused by mutations in the phenylalanine hydroxylase (PAH) gene, characterized by intellectual deficit and neuropsychiatric complications in untreated patients with estimated frequency of about one in 10,000 to 15,000 live births. PAH deficiency can be detected by neonatal screening in nearly all cases with hyperphenylalaninemia on a heel prick blood spot. Molecular testing of the PAH gene can then be performed in affected family members. Herein, we report molecular study of 635 patients genetically diagnosed with PKU from all ethnicities in Iran. The disease-causing mutations were found in 611 (96.22%) of cases. To the best of our knowledge, this is the most comprehensive molecular genetics study of PKU in Iran, identifying 100 distinct mutations in the PAH gene, including 15 previously unreported mutations. Interestingly, we found unique cases of PKU with uniparental disomy, germline mosaicism, and coinheritance with another Mendelian single-gene disorder that provides new insights for improving the genetic counseling, prenatal diagnosis (PND), and/or pre-implantation genetic diagnosis (PGD) for the inborn error of metabolism group of disorders.
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Affiliation(s)
- Tina Shirzadeh
- Kawsar Human Genetics Research Center, 41 Majlesi St., Vali Asr St., Tehran, 1595645513, Iran
| | - Amir Hossein Saeidian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
- Genetic, Genomics and Cancer Biology PhD Program, Thomas Jefferson University, Philadelphia, PA, USA
| | - Hamideh Bagherian
- Kawsar Human Genetics Research Center, 41 Majlesi St., Vali Asr St., Tehran, 1595645513, Iran
| | - Shadab Salehpour
- Department of Pediatric Endocrinology and Metabolism, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aria Setoodeh
- Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pediatrics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Alaei
- Department of Pediatric Endocrinology and Metabolism, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
- Genetic, Genomics and Cancer Biology PhD Program, Thomas Jefferson University, Philadelphia, PA, USA
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ashraf Samavat
- Genetics Office, CDC, Ministry of Health of Iran, Tehran, Iran
| | - Andrew Touati
- Drexel University College of Medicine, Philadelphia, PA, USA
| | - Mohammad-Sadegh Fallah
- Kawsar Human Genetics Research Center, 41 Majlesi St., Vali Asr St., Tehran, 1595645513, Iran
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
- Department of Molecular Medicine, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Morteza Karimipoor
- Department of Molecular Medicine, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Sarah Azadmehr
- Kawsar Human Genetics Research Center, 41 Majlesi St., Vali Asr St., Tehran, 1595645513, Iran
| | - Marzieh Raeisi
- Research Institute for Endocrine Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of cellular and molecular biology, Islamic Azad University North Tehran branch, Tehran, Iran
| | - Ameneh Bandehi Sarhadi
- Kawsar Human Genetics Research Center, 41 Majlesi St., Vali Asr St., Tehran, 1595645513, Iran
| | | | - Mojdeh Jamali
- Kawsar Human Genetics Research Center, 41 Majlesi St., Vali Asr St., Tehran, 1595645513, Iran
| | - Zahra Zeinali
- Kawsar Human Genetics Research Center, 41 Majlesi St., Vali Asr St., Tehran, 1595645513, Iran
| | - Maryam Abiri
- Department of Medical Genetics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Sirous Zeinali
- Kawsar Human Genetics Research Center, 41 Majlesi St., Vali Asr St., Tehran, 1595645513, Iran.
- Department of Molecular Medicine, Biotech Research Center, Pasteur Institute of Iran, Tehran, Iran.
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Yassaee VR, Hashemi-Gorji F, Miryounesi M, Rezayi A, Ravesh Z, Yassaee F, Salehpour S. Clinical, biochemical and molecular features of Iranian families with mucopolysaccharidosis: A case series. Clin Chim Acta 2017; 474:88-95. [PMID: 28844463 DOI: 10.1016/j.cca.2017.08.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/15/2017] [Accepted: 08/16/2017] [Indexed: 12/15/2022]
Abstract
This study aims to ascertain the genetic variants which contribute to the most common types of MPS in eleven Iranian families. Clinical and biochemical features were obtained during initial examination and patients were further investigated for genetic defects in the MPS genes. Peripheral blood samples were obtained from all family members after obtaining written informed consent. Based on the patient's clinical diagnosis, three different genetic tests including Sanger sequencing of four genes (IDUA, IDS, SGSH, and GALNS), targeted panel (10 genes) and Whole Exome Sequencing (WES) techniques were applied to identify the causative variants. A total of 12 different mutations were identified in five genes, including nine novel mutations and three previously reported missense mutations. Sanger sequencing confirmation of the identified mutations determined one case of compound heterozygous in the NAGLU gene. In this study, novel mutations in MPS related genes were identified attempting to characterize the type and subtype of the disease using molecular approaches. Results of the study positively contribute to mutation spectrum of IDUA, IDS, SGSH, NAGLU, and GALNS genes in the Iranian cohort. It may also enrich genetic counseling for rapid risk assessment and disease management.
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Affiliation(s)
- Vahid Reza Yassaee
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Miryounesi
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Rezayi
- Department of Pediatrics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeinab Ravesh
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fakhrolmolouk Yassaee
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Obstetrics and Gynecology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shadab Salehpour
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Pediatrics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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16
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Azin S, Salehpour S. 306 Approach to Sexual and Reproductive Health in Iran and Pakistan: A Comparative Study. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.207] [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: 10/20/2022]
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17
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Abiri M, Talebi S, Uitto J, Youssefian L, Vahidnezhad H, Shirzad T, Salehpour S, Zeinali S. Co-existence of phenylketonuria either with maple syrup urine disease or Sandhoff disease in two patients from Iran: emphasizing the role of consanguinity. J Pediatr Endocrinol Metab 2016; 29:1215-1219. [PMID: 27682710 DOI: 10.1515/jpem-2016-0096] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 08/29/2016] [Indexed: 11/15/2022]
Abstract
Most inborn errors of metabolism (IEMs) are inherited in an autosomal recessive manner. IEMs are one of the major concerns in Iran due to its extensive consanguineous marriages. Herein, we report two patients with two co-existent IEMs: a girl affected by classic phenylketonuria (PKU) and maple syrup urine disease (MSUD) and a male patient affected with Sandhoff disease and PKU, where Sandhoff disease was suspected due to the presence of a cherry-red spot in the eyes at 6 months which is unrelated to PKU. Sequencing of candidate genes in the first patient revealed one novel and three recurrent compound heterozygous mutations of p.Ser231Pro and p.Ala300Ser in the PAH gene and p.Glu330Lys and p.Arg170Cys mutations in the BCKDHB gene. Genetic testing results in the second patient showed previously reported homozygous mutations of p.Arg261Gln in the PAH and p.Arg533Cys mutation in the HEXB gene. Genetic testing confirmed the clinical diagnosis of both diseases in both patients. To the best of our knowledge; this is the first report of the co-existence of two distinct genetic disorders in two individuals from Iran. Co-existent different IEMs in patients complicated the clinical diagnosis and management of the diseases.
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Hashemi-Gorji F, Ghafouri-Fard S, Salehpour S, Yassaee VR, Miryounesi M. A novel splice site mutation in the GNPTAB gene in an Iranian patient with mucolipidosis II α/β. J Pediatr Endocrinol Metab 2016; 29:991-3. [PMID: 27180337 DOI: 10.1515/jpem-2016-0032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 03/29/2016] [Indexed: 12/19/2022]
Abstract
Mucolipidosis type II α/β (ML II α/β) and mucolipidosis type III α/β (ML III α/β) have been shown to be caused by an absence or reduced level of uridine diphosphate (UDP)-N-acetylglucosamine-1-phosphotransferase enzyme (EC 2.7.8.17) activity, respectively. Both disorders are caused by mutations in the GNPTAB gene and are inherited in an autosomal recessive manner. Here we report a 2-year-old female patient being diagnosed as a case of ML II α/β due to coarse face, severe developmental delay, multiple dysostosis, noticeable increase of multiple lysosomal enzymes activity in plasma and normal acid mucopolysaccharides in urine. Mutational analysis of the GNPTAB gene has revealed a novel homozygous mutation in the patient (c.3250-2A>G) with both parents being heterozygote. Transcript analyses showed that this novel splice site mutation leads to exon 17 skipping and a frameshift afterwards (p.P1084_R1112del F1113Vfs*1). Consequently, we confirmed the association of this mutation with ML II α/β. Our finding expands the number of reported cases of this rare metabolic disorder and adds to the GNPTAB mutation database.
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Khatami S, Dehnabeh SR, Zeinali S, Thöny B, Alaei M, Salehpour S, Setoodeh A, Rohani F, Hajivalizadeh F, Samavat A. Four Years of Diagnostic Challenges with Tetrahydrobiopterin Deficiencies in Iranian Patients. JIMD Rep 2016; 32:7-14. [PMID: 27246466 DOI: 10.1007/8904_2016_572] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 04/03/2016] [Accepted: 04/29/2016] [Indexed: 12/13/2022] Open
Abstract
Hyperphenylalaninemia (HPA) is a condition caused by tetrahydrobiopterin (BH4) and phenylalanine hydroxylase (PAH) deficiencies. It is essential that differential diagnosis be conducted to distinguish these two causes of HPA, because BH4 deficiency is a more severe disease involving progressive neurologic deterioration. Based on the biological findings, HPA is defined as a plasma phenylalanine level of >2.0 mg/dl (>120 μmol/l). The National Biochemistry Reference Laboratory at the Pasteur Institute of Iran initiated BH4 deficiency screening tests for the first time during the implementation of a nationwide phenylketonuria (PKU) screening program. Measurement of blood phenylalanine and urinary neopterin and biopterin was conducted by high-performance liquid chromatography in 617 patients with HPA. Dihydropteridine reductase (DHPR) activity was measured in all patients by kinetic spectrophotometry. Differential diagnosis was conducted for PKU, transient HPA, and BH4 deficiencies.Our results indicated that out of 76 cases involving BH4 deficiencies, 37 had 6-pyruvoyl-tetrahydropterin synthase (PTPS) deficiency, 35 had DHPR deficiency, 1 case had pterin-4a-carbinolamine dehydratase (PCD) deficiency, and 3 cases had GTP cyclohydrolase I (GTPCH) deficiency. In this study, 1 novel deletion mutation and 18 novel missense mutations were reported in addition to mutations that had previously been identified and registered in BIOMDB. At present, the screening program for PKU in Iran includes tests that detect different forms of BH4 deficiency presenting with HPA. Newborns that are BH4-deficient benefit from the availability of the tests because they can receive necessary care before being clinically affected.
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Affiliation(s)
- Shohreh Khatami
- Department of Biochemistry, Pasteur Institute of Iran, Pasteur Street, No. 69, 1316943551, Tehran, Iran.
| | - Soghra Rouhi Dehnabeh
- Department of Biochemistry, Pasteur Institute of Iran, Pasteur Street, No. 69, 1316943551, Tehran, Iran.
| | - Sirous Zeinali
- Genetic Laboratory of Dr Zeinali, Tehran, Iran.,Department of Medical Molecular, Pasteur Institute of Iran, Tehran, Iran
| | - Beat Thöny
- Division of Clinical Chemistry and Biochemistry, Laboratory of Molecular Genetic Investigation, University Children's Hospital Zürich, Zürich, Switzerland
| | - Mohammadreza Alaei
- Mofid Children's Hospital, Shaid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shadab Salehpour
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aria Setoodeh
- Growth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Rohani
- Department of Pediatrics Endocrinology and Metabolism, Ali Asghar Children's Hospital, Iran University of Medical Sciences, Tehran, Iran
| | | | - Ashraf Samavat
- Genetics Office, CDC, Ministry of Health of Iran, Tehran, Iran
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Foroozani H, Abiri M, Salehpour S, Bagherian H, Sharifi Z, Alaei MR, Khatami S, Azadmeh S, Setoodeh A, Rejali L, Rohani F, Zeinali S. Molecular Characterization of QDPR Gene in Iranian Families with BH4 Deficiency: Reporting Novel and Recurrent Mutations. JIMD Rep 2015; 21:123-8. [PMID: 26006720 DOI: 10.1007/8904_2015_441] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 04/08/2015] [Accepted: 04/10/2015] [Indexed: 04/03/2023] Open
Abstract
Newborn screening for PKU has been in practice in Iran since 2007. Some hyperphenylalaninemia cases have tetrahydrobiopterin (BH4) biosynthesis deficiency/disorder. Several genes including QDPR (encodes DHPR enzyme, the necessary cofactor for PAH activity) have been associated with the BH4. Mutations have been previously described in the QDPR gene. The incidence of BH4 deficiency is expected to be higher in Iran due to high rate of consanguineous marriages.We identified a total of 93 BH4-deficient families. A multiplex set of STR markers linked to 4 genes responsible for the BH4 deficiency (i.e., GCH1, PCBD1, PTS, and QDPR genes) was used to quickly determine which gene may be responsible to cause the disease. Mutation analysis of QDPR gene revealed some known and novel mutations. Our findings show that no common mutation predominates, and they are scattered in the gene in our population.
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Affiliation(s)
- Hannaneh Foroozani
- Department of Biology, Pharmaceutical Science Branch, Islamic Azad University, Tehran, Iran
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Pournasiri Z, Madani A, Zandi H, Salehpour S, Abdollah Gorji F, Ahmadzahe A. Relationship of generalized joint hypermobility with vesicoureteral reflux and urinary tract infection. Iran J Kidney Dis 2014; 8:189-193. [PMID: 24878940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 10/12/2013] [Indexed: 06/03/2023]
Abstract
INTRODUCTION Generalized joint hypermobility is deemed to be an underlying risk factor for many clinical conditions. The goal of this study was to determine the prevalence of generalized joint hypermobility in patients with vesicoureteral reflux. MATERIALS AND METHODS This was a cross-sectional study on 313 children, 3 to 15 years old, with a history of urinary tract infection. Generalized joint hypermobility was evaluated according to the Beighton scores. Urinary tract ultrasonography and cystography were done if indicated. Participants were divided into 2 groups, group 1 without urinary tract abnormality and group 2 with primary vesicoureteral reflux, which were compared with the control group. RESULTS Generalized joint hypermobility was documented in 37.2% of the children in the control group and 45.7% of those in group 1. This rate was 62.3% in group 2 (odds ratio, 2.79; 95% confidence interval, 1.61 to 4.82). Generalized joint hypermobility was seen in 44.1% of the children with mild vesicoureteral reflux, 60.5% of those with moderate vesicoureteral reflux, and 86.2% of those with severe vesicoureteral reflux. There was a significant relationship between the hypermobility incidence and the urinary reflux severity (P = .003). CONCLUSIONS This study showed the prevalence of generalized joint hypermobility in children with vesicoureteral reflux was more than that in the general population, and the prevalence of hypermobility syndrome increased with the reflux severity.
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Affiliation(s)
- Zahra Pournasiri
- Department of Pediatrics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Jamali S, Eskandari N, Aryani O, Salehpour S, Zaman T, Kamalidehghan B, Houshmand M. Three novel mutations in Iranian patients with Tay-Sachs disease. Iran Biomed J 2014; 18:114-9. [PMID: 24518553 PMCID: PMC3933921 DOI: 10.6091/ibj.1137.2013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 08/06/2013] [Accepted: 08/11/2013] [Indexed: 11/17/2022]
Abstract
BACKGROUND Tay-Sachs disease (TSD), or GM2 gangliosidosis, is a lethal autosomal recessive neurodegenerative disorder, which is caused by a deficiency of beta-hexosaminidase A (HEXA), resulting in lysosomal accumulation of GM2 ganglioside. The aim of this study was to identify the TSD-causing mutations in an Iranian population. METHODS In this study, we examined 31 patients for TSD-causing mutations using PCR, followed by restriction enzyme digestion. RESULTS Molecular genetics analysis of DNA from 23 patients of TSD revealed mutations that has been previously reported, including four-base duplications c.1274_1277dupTATC in exon 11 and IVS2+1G>A, deletion TTAGGCAAGGGC in exon 10 as well as a few novel mutations, including C331G, which altered Gln>Glu in HEXB, A>G, T>C, and p.R510X in exon 14, which predicted a termination codon or nonsense mutation. CONCLUSION In conclusion, with the discovery of these novel mutations, the genotypic spectrum of Iranian patients with TSD disease has been extended and could facilitate definition of disease-related mutations.
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Affiliation(s)
- Solmaz Jamali
- Dept. of Genetics, Islamic Azad University, Ahar, Iran;
| | | | - Omid Aryani
- Dept. of Genetics, Special Medical Center, Tehran, Iran;
| | - Shadab Salehpour
- Dept. of Pediatrics, Mofid Children's Hospital, Shaheed Beheshti University of Medical Sciences, Tehran, Iran;
| | - Talieh Zaman
- Dept. of Pediatric Metabolic Disorders, Tehran University of Medical Sciences, Tehran, Iran;
| | - Behnam Kamalidehghan
- Dept. of Pharmacy, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia;
| | - Massoud Houshmand
- Dept. of Genetics, Special Medical Center, Tehran, Iran;
- National Institute for Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Karimzadeh P, Tonekaboni SH, Ashrafi MR, Shafeghati Y, Rezayi A, Salehpour S, Ghofrani M, Taghdiri MM, Rahmanifar A, Zaman T, Aryani O, Shoar BN, Shiva F, Tavasoli A, Houshmand M. Effects of miglustat on stabilization of neurological disorder in niemann-pick disease type C: Iranian pediatric case series. J Child Neurol 2013; 28:1599-606. [PMID: 23143717 DOI: 10.1177/0883073812464526] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Niemann-Pick disease type C is a rare neurodegenerative disorder with autosomal recessive inheritance that can be broadly categorized into different forms dependent on age at disease onset: pre-/perinatal, early infantile, late infantile, juvenile, and adolescent/adult. This study was conducted to define the age at onset, clinical manifestations, neuroimaging findings and response to treatment in 21 patients diagnosed with Niemann-Pick disease type C and managed in the neurology departments of hospitals in Tehran, Iran. The effects of miglustat on patient ambulation, fine and gross motor function, swallowing, hearing, speech, seizures, psychomotor development, and ocular movements were evaluated for up to 26 months of treatment. Ambulation, fine and gross motor movements, swallowing, speech, and supranuclear gaze palsy were generally stabilized during therapy, and psychomotor delay appeared to be improved in early- and late-infantile onset patients. However, miglustat had no effect on organomegaly or other systemic manifestations of the disease. Miglustat was well tolerated.
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Affiliation(s)
- Parvaneh Karimzadeh
- 1Pediatric Neurology, Pediatric Neurology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Rezazadeh Azari M, Naghavi Konjin Z, Zayeri F, Salehpour S, Seyedi MD. Occupational exposure of petroleum depot workers to BTEX compounds. Int J Occup Environ Med 2012; 3:39-44. [PMID: 23022850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Accepted: 12/07/2011] [Indexed: 06/01/2023]
Abstract
BACKGROUND Benzene, toluene, ethylbenzene and xylene (BTEX) are the most important toxic volatile compounds in the air and could be easily absorbed through the respiratory tract. In recent years, the risk of exposure to BTEX compounds, especially benzene as a carcinogen, has been considered in petroleum depot stations. OBJECTIVE To assess the occupational exposure of petroleum depot workers in Iran to BTEX compounds. METHODS After completing a questionnaire and assessing occupational exposure to BTEX compounds, 78 (46 exposed and 32 non-exposed) depot workers were randomly selected to participate in this study. Air sampling and analysis of BTEX was conducted according to the NIOSH method No. 1501. Analysis of urinary hippuric acid, as an indicator of toluene exposure, was carried out according to NIOSH method No. 8300. Personal monitoring of the high exposure group to BTEX compounds was repeated to verify the results obtained in the first phase of the monitoring. RESULTS Among the 9 operating groups studied, occupational exposure to benzene and toluene was higher in quality control and gasoline loading operators-the median exposure ranged from 0.16 to 1.63 ppm for benzene and 0.2 to 2.72 ppm for toluene. Median exposure of other group members to BTEX compounds was below the detection limit of analytical method (0.07, 0.06, 0.05, and 0.05 ppm, respectively). The level of toluene exposure measured showed correlation with neither post-shift urinary hippuric acid (Spearman's rho = 0.128, p = 0.982) nor with the difference between post- and pre-shift urinary hippuric acid (Spearman's rho = 0.089, p = 0.847) in depot operational workers. CONCLUSION Gasoline loading operators are exposed to a relatively high level of benzene.
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Affiliation(s)
- M Rezazadeh Azari
- Safety Promotion and Injury Prevention Research Center and School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Salehpour S, Alipour P, Razzaghy-Azar M, Ardeshirpour L, Shamshiri A, Monfared MF, Gharib A. A double-blind, placebo-controlled comparison of letrozole to oxandrolone effects upon growth and puberty of children with constitutional delay of puberty and idiopathic short stature. Horm Res Paediatr 2011; 74:428-35. [PMID: 20628237 DOI: 10.1159/000315482] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2009] [Accepted: 05/10/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Constitutional delay of growth and puberty (CDGP) with short stature is one of the most common problems in pediatrics. We compared the effects of letrozole with that of oxandrolone on predicted adult height (PAH), puberty, bone mineral density, serum insulin-like growth factor 1 (IGF-1) and blood lipoproteins. METHODS In a prospective, double-blind, randomized, placebo-controlled clinical trial, 91 CDGP boys (12.6-14.6 years old) with predicted short stature were treated with letrozole (2.5 mg/day), oxandrolone (2.5 mg/day), or placebo, at the outpatient pediatric endocrine clinic of Mofid Children's Hospital in Tehran for 2 years. RESULTS Letrozole differed from oxandrolone and placebo in significantly increasing PAH (p < 0.05), and slightly but significantly decreasing HDL-cholesterol. Oxandrolone, and to a lesser degree letrozole, significantly increased the height standard deviation score and bone age compared to placebo. CONCLUSION This first randomized controlled clinical trial in CDGD teenage boys with predicted short stature shows that letrozole increases PAH more than oxandrolone and advances pubertal stage and bone mineralization less.
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Affiliation(s)
- Shadab Salehpour
- Mofid Children's Hospital, Shaheed Beheshti University of Medical Sciences, Tehran, Iran. shadab.salehpour @ gmail.com
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Abstract
BACKGROUND Severe osteogenesis imperfecta (OI) is a disorder characterized by osteopenia, frequent fractures, progressive deformity, loss of mobility, and chronic bone pain. There has been no effective therapy for the disorder until recently. The main objective of this study was to determine the efficacy and safety of pamidronate in improving bone mineralization and reducing fracture incidence in osteogenesis imperfecta. METHODS Intravenous pamidronate was administered to 64 children (from 21 months to 10 years old) with severe OI, in a 1 mg/kg single daily dose for 3 sequential days at 4-month intervals, over 24-48 months duration. Clinical status, biochemical characteristics including bone turnover markers, bone mineral density of the lumbar spine and femoral neck, and radiological changes were assessed regularly during treatment. RESULTS The number of fractures decreased from a median of 8 (range 4-11) to 0 fractures/year (range 0-4) (p <0.05). After 16 months of treatment, there was significant improvement in bone mineral density (BMD-DEXA) z-score of the lumbar spine from a median of -5.90 (range -7.01 to -4.76) to -2.70 (range -4.46 to -1.98) (p <0.001). Serum alkaline phosphatase (ALP) (bone formation marker) decreased from a median of 731.0 U/l (range 438-998 U/l) to 183 U/l (range 95-286 U/l) (p <0.001), implying a significant reduction in bone turnover and resorption and increase in bone mineralization. There was no improvement in growth velocity or height SDS. Mobility and ambulation improved in all but five children (all five had taken the drug for less than 2.5 years). There was a significant relief of chronic pain and fatigue but no adverse effects in all children using the drug. CONCLUSION Cyclic pamidronate administration is effective in improving bone mineralization and reducing fracture incidence in childhood osteogenesis imperfecta.
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Affiliation(s)
- S Salehpour
- Department of Pediatric Endocrinology and Metabolism, Mofid Children's Hospital, Shaheed Beheshti University of Medical Sciences, Tehran, I.R. Iran.
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Kariminejad A, Kariminejad R, Tzschach A, Ullmann R, Ahmed A, Asghari-Roodsari A, Salehpour S, Afroozan F, Ropers HH, Kariminejad MH. Craniosynostosis in a patient with 2q37.3 deletion 5q34 duplication: Association of extra copy ofMSX2with craniosynostosis. Am J Med Genet A 2009; 149A:1544-9. [DOI: 10.1002/ajmg.a.32949] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Salehpour S, Kalantari M, Barouti E. R-140. An assessment of hysterosalpingosonography as a diagnostic tool for uterine cavity defects and tubal patency. Hum Reprod 1999. [DOI: 10.1093/humrep/14.suppl_3.341-a] [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: 11/13/2022] Open
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