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has been cited by the following article:

• TITLE: Chromosome Polymorphism and Human Pathology: About 27 Cases of Chromosome 9 Inversion in the Beninese Population

  AUTHORS: Simon Azonbakin, Alfred Ouedraogo, Alexis Ouedraogo, Daniel Sewadouno, Arnaud Agbanlinsou, Yannick Goussanou, Marius Adjagba, Jules Alao, Anatole Laleye

  KEYWORDS: Inversion, Chromosome 9, Karyotype, Abnormality, Fertility

  JOURNAL NAME: Open Journal of Genetics, Vol.11 No.3, August 6, 2021

  ABSTRACT: The chromosomal polymorphism defined by variations of some chromosomal regions of a person (the constitutive heterochromatin and the short arms of the acrocentric chromosomes (13 to 15 and 21 - 22)) sometimes highlighted problems with regard to their safety and their pathogenicity. Polymorphisms are usually found in the same family and transmitted in the dominant Mendelian. Chromosome 9 inversion is a frequent phenomenon that some cytogeneticists consider as a variant of normal. Despite its classification as a minor chromosome rearrangement which does not correspond to abnormal phenotypes, many reports have raised conflicting opinions as well, and its complete safety is controversial. 27 cases of inversion of chromosome 9 were identified in our laboratory. The main indications for karyotype of the case of inv (9) were congenital cardiopathy (18.5%), sex development disorders of (18.5%), down syndrome (18.5%), and infertility (14.8%). This study stood out the observations of many authors who highlighted the involvement of inv (9) in the genesis of several pathologies.