MedGen

Oocyte/zygote/embryo maturation arrest-6 (OZEMA6) is characterized by primary infertility due to defective sperm-binding to an abnormally thin zona pellucida (ZP) in patient oocytes. Successful pregnancy may be achieved by intracytoplasmic sperm injection in these patients (Dai et al., 2019). For a discussion of genetic heterogeneity of OZEMA, see 615774. [from OMIM]

It is estimated that about 40-70 percent of human embryos produced in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) are viable embryos, whereas others arrest at different early stages of development. The phenotype of preimplantation lethality is inferred if IVF and ICSI cycles fail because all of an individual's embryos are arrested at early stages of development. [from HPO]

SPGF31 is characterized by male infertility due to oligozoospermia with a high proportion (greater than 90%) of acephalic sperm. Affected couples may overcome infertility with intracytoplasmic sperm injection (Zhu et al., 2018). For a discussion of phenotypic and genetic heterogeneity of spermatogenic failure, see 258150. [from OMIM]

Spermatogenic failure-91 (SPGF91) is characterized by male infertility due to teratozoospermia. Patient sperm show defects of the head, including a misshapen rounded head and detachment of the acrosome, and the sperm fail to attach to the zona pellucida of the egg. Pregnancy can be achieved using intracytoplasmic sperm injection (ICSI) (Oud et al., 2020; Fan et al., 2022). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-90 (SPGF90) is characterized by male infertility due to asthenozoospermia, in which progressive motility of sperm is markedly reduced. This form of infertility can be rescued by intracytoplasmic sperm injection (ICSI) (Liu et al., 2023). For a discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Spermatogenic failure-87 (SPGF87) is characterized by male infertility, with total fertilization failure due to inability of mutant sperm to penetrate the zona pellucida. Infertility can be rescued by intracytoplasmic sperm injection without assisted oocyte activation (Hua et al., 2023). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Male infertility due to globozoospermia is a male infertility due to sperm disorder characterized by the presence, in sperm, of a large majority of round-headed spermatozoa that lack the acrosome and have an aberrant nuclear membrane and midpiece defects. The acrosomeless spermatozoa is not able to penetrate the zona pellucida and thus fertilization failures, even with intracytoplasmic sperm injection, are frequent. [from ORDO]

X-linked spermatogenic failure-6 (SPGFX6) is characterized by male infertility due to asthenoteratozoospermia. Patient spermatozoa show reduced progressive motility, and multiple morphologic abnormalities of the flagella (MMAF) are observed, primarily short and coiled flagella. Pregnancy can be achieved by intracytoplasmic sperm injection (ICSI) (Liu et al., 2021). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

X-linked spermatogenic failure-5 (SPGFX5) is characterized by male infertility due to asthenoteratozoospermia. Patient sperm shows reduced or absent progressive motility, and multiple morphologic abnormalities of the flagella (MMAF) are observed, including short, coiled, irregular caliber, absent, and/or angulated flagella. Pregnancy may be achieved by intracytoplasmic sperm injection (ICSI) (Liu et al., 2023). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]