Science exchange logo white
  • Solutions
      Buyers

      We are making R&D services readily available to every organization that seeks to make scientific impact. Learn More

      Providers

      We are changing the way providers access and engage customers to streamline the sale and delivery of R&D services. Learn More

      Industries Agriscience Animal Health Basic Research Biopharmaceutical Chemicals Consumer Health Food Science Medical Devices
      Reproducibility

      We believe that good experiments can and should be independently replicated and validated. Learn More

  • Resources
    Innovation Blog
    Customer Stories
    Events
    Industry Trends
    News
    Product Updates
    Help Center
  • About
    About
    Our Story
    Leadership
    Partners
    Join the Team
  • Contact
  • Log In Sign Up
  • Get a Demo
  • A clinical and molecular genetic study of 112 Iranian families with primary microcephaly.

    J Med Genet. 47(12):823-8. doi: 10.1136/jmg.2009.076398. October 26, 2010. View on PubMed.
  • Authors

    Masoud Garshasbi, Darvish H, Esmaeeli-Nieh S, Monajemi GB, Mohseni M, Ghasemi-Firouzabadi S, Abedini SS, Bahman I, Jamali P, Azimi S, Mojahedi F, Dehghan A, Shafeghati Y, Jankhah A, Falah M, Soltani Banavandi MJ, Ghani-Kakhi M, Rakhshani F, Naghavi A, Tzschach A, Neitzel H, Ropers HH, Kuss AW, Behjati F, Kahrizi K, and Najmabadi H
  • Abstract

    BACKGROUNDPrimary microcephaly (MCPH) is a genetically heterogeneous disorder showing an autosomal recessive mode of inheritance. Affected individuals present with head circumferences more than three SDs below the age- and sex-matched population mean, associated with mild to severe mental retardation. Five genes (MCPH1, CDK5RAP2, ASPM, CENPJ, STIL) and two genomic loci, MCPH2 and MCPH4, have been identified so far.METHODS AND RESULTSIn this study, we investigated all seven MCPH loci in patients with primary microcephaly from 112 Consanguineous Iranian families. In addition to a thorough clinical characterisation, karyotype analyses were performed for all patients. For Homozygosity mapping, microsatellite markers were selected for each locus and used for genotyping. Our investigation enabled us to detect homozygosity at MCPH1 (Microcephalin) in eight families, at MCPH5 (ASPM) in thirtheen families. Three families showed homozygosity at MCPH2 and five at MCPH6 (CENPJ), and two families were linked to MCPH7 (STIL). The remaining 81 families were not linked to any of the seven known loci. Subsequent sequencing revealed eight, 10 and one novel mutations in Microcephalin, ASPM and CENPJ, respectively. In some families, additional features such as short stature, seizures or congenital hearing loss were observed in the microcephalic patient, which widens the spectrum of clinical manifestations of mutations in known microcephaly genes.CONCLUSIONOur results show that the molecular basis of microcephaly is heterogeneous; thus, the Iranian population may provide a unique source for the identification of further genes underlying this disorder.

Science exchange logo white

  • Facebook
  • Twitter
  • LinkedIn

Solutions

  • Buyers
  • Providers
  • Reproducibility

Industries

  • Agriscience
  • Animal Health
  • Basic Research
  • Biopharmaceutical
  • Chemicals
  • Consumer Health
  • Food Science
  • Medical Devices

Resources

  • Innovation Blog
  • Customer Stories
  • Events
  • Industry Trends
  • News
  • Product Updates

About

  • Our Story
  • Leadership
  • Partners
  • Join the Team

Support

  • Contact Us
  • Help Center
  • Trust
  • Terms of Use
  • Privacy Policy

Copyright © 2021 Science Exchange, Inc. All rights reserved.