PMID- 15576825 OWN - NLM STAT- MEDLINE DCOM- 20050830 LR - 20220330 IS - 0006-3363 (Print) IS - 0006-3363 (Linking) VI - 72 IP - 4 DP - 2005 Apr TI - Alkylated imino sugars, reversible male infertility-inducing agents, do not affect the genetic integrity of male mouse germ cells during short-term treatment despite induction of sperm deformities. PG - 805-13 AB - Reversible infertility can be induced in male mice by oral administration of the alkylated imino sugars N-butyldeoxynojirimycin (NB-DNJ) and N-butyldeoxygalactonojirimycin (NB-DGJ). Spermatozoa of these mice have grossly misshapen heads and reduced motility. Because NB-DNJ and related compounds may hold promise as nonhormonal male contraceptives, a comprehensive examination of their effects on male reproduction is necessary. To this end, we further examined reproductive properties of the dysmorphic spermatozoa that are produced after short-term imino sugar administration at the minimal dose that completely abolishes the ability of male C57BL/6 mice to produce offspring by natural mating. Here, we report that, in vitro, the abnormal spermatozoa from the NB-DNJ- and NB-DGJ-treated mice were unable to fertilize oocytes. In addition, we investigated whether the imino sugars damage the genetic integrity of spermatozoa. To test this, we microsurgically injected deformed spermatozoa from imino sugar-treated males into oocytes. The deformed spermatozoa from the testis were able to activate oocytes very efficiently, but those from the cauda epididymis often failed to do so. This problem was overcome when the sperm-injected oocytes were treated with a parthenogenetic agent, Sr(2+). Oocytes injected with the misshapen spermatozoa from NB-DNJ- and NB-DGJ-treated mice developed (with or without Sr(2+) treatment) into live offspring that grew normally and were normally fertile. This indicates that during short-term administration, alkylated imino sugars alter sperm morphology and physiology but do not diminish the genetic potential of spermatozoa. FAU - Suganuma, Ryota AU - Suganuma R AD - Institute for Biogenesis Research, University of Hawaii School of Medicine, Honolulu, Hawaii 96822, USA. FAU - Walden, Charlotte M AU - Walden CM FAU - Butters, Terry D AU - Butters TD FAU - Platt, Frances M AU - Platt FM FAU - Dwek, Raymond A AU - Dwek RA FAU - Yanagimachi, Ryuzo AU - Yanagimachi R FAU - van der Spoel, Aarnoud C AU - van der Spoel AC LA - eng GR - 1 U01 HD45861/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. DEP - 20041201 PL - United States TA - Biol Reprod JT - Biology of reproduction JID - 0207224 RN - 0 (Carbohydrates) RN - 0 (Contraceptive Agents, Male) RN - 0 (Disulfides) RN - 0 (Imines) RN - 0 (Protamines) RN - 0 (Sphingolipids) RN - 19130-96-2 (1-Deoxynojirimycin) RN - ADN3S497AZ (miglustat) RN - C4XNY919FW (migalastat) SB - IM MH - 1-Deoxynojirimycin/*analogs & derivatives/pharmacology MH - Alkylation MH - Animals MH - Carbohydrates MH - Contraceptive Agents, Male/*pharmacology MH - Disulfides/metabolism MH - Female MH - Fertility/drug effects/genetics MH - Fertilization in Vitro MH - Imines MH - Infertility, Male/chemically induced/*genetics/pathology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Inbred DBA MH - Pregnancy MH - Pregnancy Outcome MH - Protamines/metabolism MH - Spermatozoa/*drug effects/*pathology/physiology MH - Sphingolipids/metabolism EDAT- 2004/12/04 09:00 MHDA- 2005/09/01 09:00 CRDT- 2004/12/04 09:00 PHST- 2004/12/04 09:00 [pubmed] PHST- 2005/09/01 09:00 [medline] PHST- 2004/12/04 09:00 [entrez] AID - biolreprod.104.036053 [pii] AID - 10.1095/biolreprod.104.036053 [doi] PST - ppublish SO - Biol Reprod. 2005 Apr;72(4):805-13. doi: 10.1095/biolreprod.104.036053. Epub 2004 Dec 1.