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  • NIH Sep 27, 2013 | U01

    Clinical and genetic studies of hereditary neurological disorders in Mali

    Principal Investigator(s): Landoure, Guida

    Institution: University of Science Techniques and Technology Of Bamako

    FOA Number: RFA-RM-16-015

    Abstract

    Despite the vast diversity of its populations, genetic studies in Africa have been limited. African populations, Malians in particular, have a high rate of intra-ethnic and consanguineous marriage, resulting in increased prevalence of autosomal recessive diseases. Family-based genetic studies can be limited in developed countries due to small sib ships. The average fertility rate in Mali is over 6 births per woman, offering a unique opportunity to find new disease genes or mutations that can then be studied in other populations. Neurological disorders present public health challenges globally with total disability- adjusted life years (DALYs) greater than some infectious diseases. These challenges are even greater when considering hereditary neurological diseases that cause premature death, severe disability and loss of productivity, resulting in high health care costs. Although most are currently untreatable, increasing awareness and community engagement about hereditary neurological disorders can reduce this burden. Our previous studies have established the molecular defects in a good number of families and identified variants in novel genes. Through genetic counseling and community engagement session, patients and families as well as their communities have gained knowledge regarding the cause of these diseases; lifting in part the psychosocial burden, and orienting their partner choice. However, more work is needed for a full understanding of the mechanism of these diseases. Despite the increased number of trained physicians and students in the characterization of these diseases and the basics in genetics, many other families havent gotten access to medical genetic services. Standard genetic testing in several other families has been inconclusive, confirming our premise that Malians have specific phenotypic variants of hereditary neurological disorders that may be due to novel mutations or to mutations in as yet undiscovered genes. The infrastructures built with the previous award have created a suitable environment to perform state-of-art research and train the next generation African scientists. To ensure sustainability, African government should be fully engaged to empower genetic training and research funding. With this support, African scientists and clinicians would be ready to meet emerging medical genetics and genomic challenges. With the commitment of some African leaders and philanthropists, there is a hope that Africans will soon fund a big part of the research in Africa. PUBLIC HEALTH RELEVANCE: Project narrative This project will identify new clinical and genetic neurological entities that may be studied in other populations. Genetic counseling and community engagement will have more impact in decreasing stigma and perhaps decreasing the rate of consanguineous marriages with the effect of reducing the burden of recessive diseases in the Malian population. The acquired infrastructures will set the stage for training the next generation African scientists, and for scientific productivity and advances to ensure sustainability for future generations.

    FUNDING AGENCY:

    Funder:
    NIH

    Institute:
    NATIONAL HUMAN GENOME RESEARCH INSTITUTE

    Funding Type:
    U01

    Project Number:
    U01HG007044

    Start Date:
    Sep 27, 2013

    End Date:
    Jun 30, 2019

    PROJECT TERMS:

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