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Globozoospermia is a rare form of male infertility. Men affected by this condition have abnormal sperm with a round (rather than oval) head and no acrosome (a cap-like covering which contains enzymes that break down the outer membrane of an egg cell). As a result of these abnormalities, the sperm are unable to fertilize an egg cell, leading to male factor infertility. Approximately 70% of men with globozoospermia have changes (mutations) in the DPY19L2 gene, which are inherited in an autosomal recessive manner. In the remaining cases, the underlying cause of the condition is unknown; however, researchers suspect that mutations in other genes likely cause globozoospermia. Although there is currently no cure for the condition, certain assisted reproductive technologies (ICSI combined with assisted egg cell activation, specifically) can help men affected by the condition conceive children.
Source: GARD Last updated on 05-01-20
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