COI code: CIGS15_201
Paper Language: English
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Authors An incidental finding in an infertile man with SMNc deletion Is there any correlation to infertilitymahbubeh rojhannezhad - Sarem medical genetics department, Sarem women hospital, Tehran, Iran.PhD student of genetics , molecular genetics department , Tarbiat Modares university Tehran, Iran
Samira Rezaei, - Sarem medical genetics department, Sarem women hospital, Tehran, Iran
Hamed abdi - Sarem medical genetics department, Sarem women hospital, Tehran, Iran1
sanaz samadpour - Sarem medical genetics department, Sarem women hospital, Tehran, Iran1
arash pouladi - Sarem medical genetics department, Sarem women hospital, Tehran, Iran.Sarem cell Research center, Sarem medical genetics department, Sarem woman hospital, Tehran, Iran
Mohammad salimi - Sarem medical genetics department, Sarem women hospital, Tehran, Iran
Abstract:Spinal muscular atrophy, an autosomal recessive disease, is characterized by muscle weakness and atrophy. SMA is caused by the deletion of SMNt gene located on chromosome 5q13 (part of a 500kb inverted duplication). There are two SMN genes in this locus, telomeric (SMNt) and centromeric (SMNc) copy genes. Increases in SMNc copy number often modify the SMA phenotypes. Here we report an infertile man, referred to our lab for microdeletion testing in AZF regions. The results of microdeletion were negative. Clinical examination showed no serious typical phenotypes related to SMA. We incidentally found a homozygous deletion of exons 7 and 8 of SMNc gene, using his DNA as a control sample with samples of SMA patients. Although homozygous deletion of exons 7 and 8 of the SMNc is present in approximately 5% of the normal population, there are some cases of lower motor neuron disease with homozygous (SMNc) deletion. Interestingly, it is determined that SMN expression in testis is high. It was also reported that a mouse model of SMN C/C which expresses a reduced amount of SMN (~25–50% of WT) displayed a mild SMA-like phenotype, including peripheral necrosis, autonomic nervous system dysfunction, reduced testis size and impaired spermatogenesis. As a result we would hypothesize that impaired spermatogenesis that caused infertility may have a correlation with the SMNc homozygous deletion in the patient. To confirm this correlation more evidences and further studies of SMNc deletion in infertile patients are needed.
Keywords:SMA, SMNc, SMN2 gene, Infertility, MLPA, Incidental finding
COI code: CIGS15_201
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rojhannezhad, mahbubeh; Samira Rezaei,; Hamed abdi; sanaz samadpour; arash pouladi & Mohammad salimi, 2018, An incidental finding in an infertile man with SMNc deletion Is there any correlation to infertility, The Third International and 15th National Genetics Congress, تهران, انجمن علمي ژنتيك ايران, https://www.civilica.com/Paper-CIGS15-CIGS15_201.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (rojhannezhad, mahbubeh; Samira Rezaei,; Hamed abdi; sanaz samadpour; arash pouladi & Mohammad salimi, 2018)
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Paper No.: 25777
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