{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T22:36:00Z","timestamp":1792190160010,"version":"4.4.0"},"reference-count":176,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2023,10,7]],"date-time":"2023-10-07T00:00:00Z","timestamp":1696636800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Miami University","award":["R15HD101985"],"award-info":[{"award-number":["R15HD101985"]}]},{"DOI":"10.13039\/100000071","name":"National Institute of Child Health and Human Development (NICHD) of the National Institutes of Health","doi-asserted-by":"publisher","award":["R15HD101985"],"award-info":[{"award-number":["R15HD101985"]}],"id":[{"id":"10.13039\/100000071","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Na+\/H+ exchangers (NHEs) are known to be important regulators of pH in multiple intracellular compartments of eukaryotic cells. Sperm function is especially dependent on changes in pH and thus it has been postulated that NHEs play important roles in regulating the intracellular pH of these cells. For example, in order to achieve fertilization, mature sperm must maintain a basal pH in the male reproductive tract and then alkalize in response to specific signals in the female reproductive tract during the capacitation process. Eight NHE isoforms are expressed in mammalian testis\/sperm: NHE1, NHE3, NHE5, NHE8, NHA1, NHA2, NHE10, and NHE11. These NHE isoforms are expressed at varying times during spermatogenesis and localize to different subcellular structures in developing and mature sperm where they contribute to multiple aspects of sperm physiology and male fertility including proper sperm development\/morphogenesis, motility, capacitation, and the acrosome reaction. Previous work has provided evidence for NHE3, NHE8, NHA1, NHA2, and NHE10 being critical for male fertility in mice and NHE10 has recently been shown to be essential for male fertility in humans. In this article we review what is known about each NHE isoform expressed in mammalian sperm and discuss the physiological significance of each NHE isoform with respect to male fertility.<\/jats:p>","DOI":"10.3390\/ijms241914981","type":"journal-article","created":{"date-parts":[[2023,10,7]],"date-time":"2023-10-07T14:03:03Z","timestamp":1696687383000},"page":"14981","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Na+\/H+ Exchangers (NHEs) in Mammalian Sperm: Essential Contributors to Male Fertility"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-9788-3681","authenticated-orcid":false,"given":"Cameron C.","family":"Gardner","sequence":"first","affiliation":[{"name":"Department of Biology, Miami University, Oxford, OH 45056, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul F.","family":"James","sequence":"additional","affiliation":[{"name":"Department of Biology, Miami University, Oxford, OH 45056, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,10,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"549","DOI":"10.1007\/s00424-003-1110-3","article-title":"Diversity of the Mammalian Sodium\/Proton Exchanger SLC9 Gene Family","volume":"447","author":"Orlowski","year":"2004","journal-title":"Pflug. 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