Acknowledgement
We are thankful to Prof KD Manandhar, the Chairperson of the Central Department of Biotechnology/Tribhuvan University, Kathmandu, Nepal, for allowing the use of the laboratory facilities for conducting our research. YJ Yi was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF-2020R1A2C1014007).
References
- Atsukwei D, Daniel EE, Adams MD, Tende JA, Tope OO, Danmallam L. 2015. Contraceptive effect of ethanolic extract of Dioscorea villosa tuber on reproductive hormones of female Wistar rats. International Journal of Biochemistry Research & Review 5:135-144.
- Balandrin MF, Klocke JA, Wurtele ES, Bollinger WH. 1985. Natural plant chemicals: Sources of industrial and medicinal materials. Science 228:1154-1160. https://doi.org/10.1126/science.3890182
- Bhandari S, Sharma J, Rizal S, Yi YJ, Manandhar G. 2021. Artemisia vulgaris extract causes precocious acrosome reaction and viability loss but low rate of membrane damage in mouse spermatozoa. Journal of Animal Science and Technology 63:58-68. https://doi.org/10.5187/jast.2021.e8
- Broadbent JL, Schnieden H. 1958. A comparison of some pharmacological properties of dioscorine and dioscine. British Journal of Pharmacology and Chemotherapy 13:213-215. https://doi.org/10.1111/j.1476-5381.1958.tb00893.x
- Byers SL, Wiles MV, Dunn SL, Taft RA. 2012. Mouse estrous cycle identification tool and images. PLoS ONE 7:e35538.
- Chang Z, Qin W, Zheng H, Schegg K, Lu H, Liu X, Wang Y, Wang Z, McSwiggin H, Peng H, et al. 2021. Triptonide is a reversible non-hormonal male contraceptive agent in mice and non-human primates. Nature Communications 12:1253.
- Daniyal M, Akram M. 2015. Antifertility activity of medicinal plants. Journal of the Chinese Medical Association 78:382-388. https://doi.org/10.1016/j.jcma.2015.03.008
- Dutta B. 2015. Food and medicinal values of certain species of Dioscorea with special reference to Assam. Journal of Pharmacognosy and Phytochemistry 3:15-18.
- Florman HM, Storey BT. 1982. Mouse gamete interactions: The zona pellucida is the site of the acrosome reaction leading to fertilization in vitro. Developmental Biology 91:121-130. https://doi.org/10.1016/0012-1606(82)90015-X
- Galani VJ, Patel DM. 2016. A comprehensive phytopharmacological review of Dioscorea bulbifera. International Journal of Environmental Sciences & Natural Resources 4:177-187.
- Hino T, Muro Y, Tamura-Nakano M, Okabe M, Tateno H, Yanagimachi R. 2016. The behavior and acrosomal status of mouse spermatozoa in vitro, and within the oviduct during fertilization after natural Mating. Biology of Reproduction 95:1-11. https://doi.org/10.1095/biolreprod.116.142240
- Hirohashi N, Gerton GL, Buffone MG. 2011. Video imaging of the sperm acrosome reaction during in vitro fertilization. Communicative & Integrative Biology 4:471-476. https://doi.org/10.4161/cib.15636
- Hou WC, Liu JS, Chen HJ, Chen TE, Chang CF, Lin YH. 1999. Dioscorin, the major tuber storage protein of yam (Dioscorea batatas Decne) with carbonic anhydrase and trypsin inhibitor activities. Journal of Agricultural and Food Chemistry 47:2168-2172. https://doi.org/10.1021/jf980738o
- Jayachandran KS, Vasanthi AHR, Gurusamy N. 2016. Steroidal saponin diosgenin from Dioscorea bulbifera protects cardiac cells from hypoxia-reoxygenation injury through modulation of pro-survival and pro-death molecules. Pharmacognosy Magazine 12:14-20. https://doi.org/10.4103/0973-1296.176114
- Jin M, Fujiwara E, Kakiuchi Y, Okabe M, Satouh Y, Baba SA, Chiba K, Hirohashia N. 2011. Most fertilizing mouse spermatozoa begin their acrosome reaction before contact with the zona pellucida during in vitro fertilization. Proceedings of the National Academy of Sciences 108:4892-4896. https://doi.org/10.1073/pnas.1018202108
- Kamble SY, Patil SR, Sawant PS, Sawant S, Pawar SG, Singh EA. 2010. Studies on plant used in traditional medicine by Bhilla tribe of Maharashtra. Indian Journal of Traditional Knowledge 9:591-598.
- Kim KS, Gerton GL. 2003. Differential release of soluble and matrix components: Evidence for intermediate states of secretion during spontaneous acrosomal exocytosis in mouse sperm. Developmental Biology 264:141-152. https://doi.org/10.1016/j.ydbio.2003.08.006
- Komesaroff PA, Black CV, Cable V, Sudhir K. 2001. Effects of wild yam extract on menopausal symptoms, lipids and sex hormones in healthy menopausal women. Climacteric 4:144-150. https://doi.org/10.1080/cmt.4.2.144.150
- Liu H, Vhou GX, Wu T, Guo YL, Wang SC, Wang CH, Wang GT. 2009. Steroidal saponins ad glycosides from the rhizomes of Dioscorea bulbifera. Journal of Natural Products 72:1964-1968. https://doi.org/10.1021/np900255h
- Liu JS, Gao WN, Zheng J, Wang G, Yang QS. 2017. Chemical constituents from fresh tubers of Dioscorea bulbifera. China Journal of Chinese Materia Medica 42:510-516.
- Manandhar G, Sutovsky P. 2007. Comparative histology and subcellular structure of mammalian spermatogenesis and spermatozoa. In Comparative reproductive biology edited by Schatten H, Constantinescu GM. pp. 81-98. Blackwell Publishing, Ames, Iowa, USA.
- Manandhar G, Toshimori K. 2001. Exposure of sperm head equatorin after acrosome reaction and its fate after fertilization in mice. Biology of Reproduction 65:1425-1436. https://doi.org/10.1095/biolreprod65.5.1425
- Meyers SA. 2009. Sperm physiology. In Equine breeding management and artificial insemination (2nd ed) edited by Samper EJC. pp. 47-55. Elsevier Inc, Amsterdam, Netherland.
- Msiska T, Mwakikunga A, Tembo D, Lampiao F. 2021. Effect of herbal aphrodisiac, Dioscorea Bulbifera on sperm parameters, serum hormonal levels and testicular histology of Wistar rats. Current Traditional Medicine 7:457-467. https://doi.org/10.2174/2215083806999200604150550
- Nagai T, Nagashima T. 2006. Functional properties of dioscorin, a soluble viscous protein from Japanese yam (Dioscorea opposita Thunb.) tuber mucilage. Zeitschrift fur Naturforschung C (A Journal of Biosciences)61:792-798. https://doi.org/10.1515/znc-2006-11-1204
- Nagata K, Aistrup GL, Honda H, Shono T, Narahashi T. 1999. Modulation of the nicotinic acetylcholine receptor by dioscorine in clonal rat (haeochlomocytoma PC12) cells. Pesticide Biochemistry and Physiology 64:157-165. https://doi.org/10.1006/pest.1999.2423
- Naz RK. 2011. Can curcumin provide an ideal contraceptive? Molecular Reproduction and Development 78:116-123. https://doi.org/10.1002/mrd.21276
- Obidiegwu JE, Lyons JB, Chilaka CA. 2020. The Dioscorea genus (yam)-an appraisal of nutritional and therapeutic potentials. Foods 9:1304-1348. https://doi.org/10.3390/foods9091304
- Parrish JJ, Susko-Parrish J, Winer MA, First NL. 1988. Capacitation of bovine sperm by heparin. Biology and Reproduction 38:1171-1180. https://doi.org/10.1095/biolreprod38.5.1171
- Paul D, Bera S, Jana D, Maiti R, Ghosh D. 2005. In vitro determination of the contraceptive spermicidal activity of a composite extract of Achyranthes aspera and Stephania hernandifolia on human semen. Contraception 73:284-288. https://doi.org/10.1016/j.contraception.2005.07.014
- Paul D, De D, Ali KM, Chatterjee K, Nandi DK, Ghosh D. 2010. Comparative study on the spermicidal activity of organic solvent fractions from hydroethanolic extracts of Achyranthes aspera and Stephania hernandifolia in human and rat sperm. Contraception 81:355-361. https://doi.org/10.1016/j.contraception.2009.09.001
- Sautour M, Mitaine-Offer A, Lacaille-Dubois M. 2007. The Dioscorea genus: A review of bioactive steroid saponins. Journal of Natural Medicines 61:91-101. https://doi.org/10.1007/s11418-006-0126-3
- Shajeela PS, Mohan VR, Jesudas LL, Soris PT. 2011. Antifertility activity of ethanol extract of Dioscorea esculenta (L.) Schott on male albino rats. International Journal of Pharm Tech Research 3:946-954.
- Sharma N, Jocob D. 2001. Antifertility investigation and toxicological screening of the petroleum ether extract of the leaves of Mentha arvensis L. in male albino mice. Journal of Ethnopharmacology 75:5-12. https://doi.org/10.1016/S0378-8741(00)00362-7
- Swarnkar S, Katewa SS. 2008. Ethnobotanical observation on tuberous plants from tribal area of Rajasthan (India). Ethnobotanical Leaflets 12:647-666.
- Tarin JJ, Trounson AO. 1994. Inducers of the acrosome reaction. Reproduction, Fertility and Development 6:33-36. https://doi.org/10.1071/RD9940033
- Tateno H, Krapf D, Hino T, Sanchez-Cardenas C, Darszon A, Yanagimachi R, Visconti PE. 2013. Ca2+ ionophore A23187 can make mouse spermatozoa capable of fertilizing in vitro without activation of cAMP-dependent phosphorylation pathways. Proceedings of the National Academy of Sciences 110:18543-18548. https://doi.org/10.1073/pnas.1317113110
- Wu H, Gao J, Xia W, Leung TY, Duan Y-G, Chiu PCN. 2020. Platelet-activating factor induces acrosome reaction via the activation of extracellular signal-regulated kinase in human spermatozoa. Andrologia 52:e13565.
- Yanagimachi R. 1975. Acceleration of the acrosome reaction and activation of guinea pig spermatozoa by detergents and other reagents. Biology of Reproduction 13:519-526. https://doi.org/10.1095/biolreprod13.5.519
- Yi YJ, Chandanee RM, Seo DW, Heo JM, Cho M, Lee SM. 2021. Bisphenol A induces reproductive dysfunction in male mice. Korean Journal of Agricultural Science 48:935-944. https://doi.org/10.7744/KJOAS.20210079
- Zeng M, Zhang L, Li M, Zhang B, Zhou N, Ke Y, Weisheng F, Zheng X. 2018. Estrogenic effects of the extracts from the Chinese yam (Dioscorea opposita Thunb.) and its effective compounds in vitro and in vivo. Molecules 23:11.