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Information Journal Paper

Title

GENETIC LINKAGE ANALYSIS OF 15 DFNB LOCI IN A GROUP OF IRANIAN FAMILIES WITH AUTOSOMAL RECESSIVE HEARING LOSS

Pages

  34-48

Abstract

 Background: Hearing loss (HL) is the most frequent sensory birth defect in humans. Autosomal recessive non-syndromic HL (ARNSHL) is the most common type of hereditary HL. It is extremely heterogeneous and over 70 loci (known as DFNB) have been identified. This study was launched to determine the relative contribution of more frequent loci in a cohort of ARNSHL families.Methods: Thirty-seven IRANian families including 36 ARNSHL families and 1 family with Pendred syndrome each with ³4 affected individuals, from seven provinces of IRAN, were ascertained. DFNB1 contribution was initially studied by DNA sequencing of GJB2 and linkage analysis using the relative STR markers. The excluded families were then subjected to homozygosity mapping for fifteen ARNSHL loci.Results: Sixteen families were found to be linked to seven different known loci, including DFNB1 (6 families), DFNB4 (3 families +1 family with Pendred syndrome), DFNB63 (2 families), DFNB2 (1 family), DFNB7/11 (1 family), DFNB9 (1 family) and DFNB21 (1 family). DNA sequencing of the corresponding genes is in progress to identify the pathogenic mutations.Conclusion: The genetic causes were clarified in 43.2% of the studied families, giving an overview of the causes of ARNSHL in IRAN. DFNB4 is ranked second after DFNB1 in the studied cohort. More genetic and epigenetic investigations will have to be done to reveal the causes in the remaining families.

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    APA: Copy

    TABATABAIEFAR, M.A., ALASTI, F., MONTAZER ZOHOUR, M., SHARIATI, L., FARROKHI, E., FARHUD, D.D., CAMP, G.V., NOORI DALOII, M.R., & HASHEMZADEH CHALESHTORI, M.. (2011). GENETIC LINKAGE ANALYSIS OF 15 DFNB LOCI IN A GROUP OF IRANIAN FAMILIES WITH AUTOSOMAL RECESSIVE HEARING LOSS. IRANIAN JOURNAL OF PUBLIC HEALTH, 40(2), 34-48. SID. https://sid.ir/paper/272789/en

    Vancouver: Copy

    TABATABAIEFAR M.A., ALASTI F., MONTAZER ZOHOUR M., SHARIATI L., FARROKHI E., FARHUD D.D., CAMP G.V., NOORI DALOII M.R., HASHEMZADEH CHALESHTORI M.. GENETIC LINKAGE ANALYSIS OF 15 DFNB LOCI IN A GROUP OF IRANIAN FAMILIES WITH AUTOSOMAL RECESSIVE HEARING LOSS. IRANIAN JOURNAL OF PUBLIC HEALTH[Internet]. 2011;40(2):34-48. Available from: https://sid.ir/paper/272789/en

    IEEE: Copy

    M.A. TABATABAIEFAR, F. ALASTI, M. MONTAZER ZOHOUR, L. SHARIATI, E. FARROKHI, D.D. FARHUD, G.V. CAMP, M.R. NOORI DALOII, and M. HASHEMZADEH CHALESHTORI, “GENETIC LINKAGE ANALYSIS OF 15 DFNB LOCI IN A GROUP OF IRANIAN FAMILIES WITH AUTOSOMAL RECESSIVE HEARING LOSS,” IRANIAN JOURNAL OF PUBLIC HEALTH, vol. 40, no. 2, pp. 34–48, 2011, [Online]. Available: https://sid.ir/paper/272789/en

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