{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T08:34:53Z","timestamp":1792226093869,"version":"4.4.0"},"reference-count":39,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"5","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:p>\n                    Numerous genes have been associated with multiple morphological abnormalities of the sperm flagella (MMAF), which cause severe asthenozoospermia and lead to male infertility, while the causes of approximately 50% of MMAF cases remain unclear. To reveal the genetic causes of MMAF in an infertile patient, whole-exome sequencing was performed to screen for pathogenic genes, and electron microscope was used to reveal the sperm flagellar ultrastructure. A novel heterozygous missense mutation in the outer dense fiber protein 2 (\n                    <jats:italic toggle=\"yes\">ODF2<\/jats:italic>\n                    ) gene was detected, which was inherited from the patient's mother and predicted to be potentially damaging. Transmission electron microscopy revealed that the outer dense fibers were defective in the patient's sperm tail, which was similar to that of the reported heterozygous\n                    <jats:italic toggle=\"yes\">Odf2<\/jats:italic>\n                    mutation mouse. Immunostaining of ODF2 showed severe ODF2 expression defects in the patient's sperm. Therefore, it was concluded that the heterozygous mutation in\n                    <jats:italic toggle=\"yes\">ODF2<\/jats:italic>\n                    caused MMAF in this case. To evaluate the possibility of assisted reproductive technology (ART) treatment for this patient, intracytoplasmic sperm injection (ICSI) was performed, with the help of a hypo-osmotic swelling test and laser-assisted immotile sperm selection (LAISS) for available sperm screening, and artificial oocyte activation with ionomycin was applied to improve the fertilization rate. Four ICSI cycles were performed, and live birth was achieved in the LAISS-applied cycle, suggesting that LAISS would be valuable in ART treatment for MMAF.\n                  <\/jats:p>","DOI":"10.4103\/aja202183","type":"journal-article","created":{"date-parts":[[2022,1,28]],"date-time":"2022-01-28T13:40:52Z","timestamp":1643377252000},"page":"463-472","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":37,"title":["Novel mutation in ODF2 causes multiple morphological abnormalities of the sperm flagella in an infertile male"],"prefix":"10.4103","volume":"24","author":[{"given":"Zi-Jue","family":"Zhu","sequence":"first","affiliation":[{"name":"Department of Andrology, Urological Medical Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, 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