Study of bovine sperm motility in shear-thinning viscoelastic fluids
To elucidate the process whereby sperm arrive at an egg in the female reproductive organs, it is essential to investigate how rheological properties of the fluid around mammalian spermatozoa affect their motility. We examined the motility and flagellar waveform of bovine sperm swimming in a fluid wi...
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| Veröffentlicht in: | Journal of biomechanics 2019-05, Vol.88, p.130-137 |
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| creator | Hyakutake, Toru Sato, Koichi Sugita, Kenta |
| description | To elucidate the process whereby sperm arrive at an egg in the female reproductive organs, it is essential to investigate how rheological properties of the fluid around mammalian spermatozoa affect their motility. We examined the motility and flagellar waveform of bovine sperm swimming in a fluid with similar rheological properties as mammalian cervical mucus. The results indicated that the surrounding rheological properties largely affected the flagellar waveform of mammalian spermatozoa; in particular, shear-thinning viscoelastic fluid increased the progressive motility of the sperm. To investigate the influence of flagellar waveform on sperm motility in more detail, the waveform was expressed as a function and the progressive thrust of the sperm was calculated based on the empirical resistive force theory. The results of this study showed that the progressive thrust increased with the curvature of the flagellar tip. Moreover, we calculated the thrust efficiency of motile sperm. Results showed that the thrust efficiency in shear-thinning viscoelastic fluids was larger than that in Newtonian fluids, regardless of viscosity. This suggests that motile sperm in cervical mucus move efficiently by means of a motion mechanism that is suited to their surrounding environment. |
| doi_str_mv | 10.1016/j.jbiomech.2019.03.035 |
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We examined the motility and flagellar waveform of bovine sperm swimming in a fluid with similar rheological properties as mammalian cervical mucus. The results indicated that the surrounding rheological properties largely affected the flagellar waveform of mammalian spermatozoa; in particular, shear-thinning viscoelastic fluid increased the progressive motility of the sperm. To investigate the influence of flagellar waveform on sperm motility in more detail, the waveform was expressed as a function and the progressive thrust of the sperm was calculated based on the empirical resistive force theory. The results of this study showed that the progressive thrust increased with the curvature of the flagellar tip. Moreover, we calculated the thrust efficiency of motile sperm. Results showed that the thrust efficiency in shear-thinning viscoelastic fluids was larger than that in Newtonian fluids, regardless of viscosity. This suggests that motile sperm in cervical mucus move efficiently by means of a motion mechanism that is suited to their surrounding environment.</description><identifier>ISSN: 0021-9290</identifier><identifier>EISSN: 1873-2380</identifier><identifier>DOI: 10.1016/j.jbiomech.2019.03.035</identifier><identifier>PMID: 30954248</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>Bovine sperm ; Cervix ; Computing time ; Curvature ; Efficiency ; Flagella ; Mammals ; Mathematical analysis ; Mechanics ; Motility ; Mucus ; Newtonian fluids ; Non-Newtonian fluids ; Organs ; Properties (attributes) ; Reproductive organs ; Rheological properties ; Rheology ; Shear ; Shear-thinning viscoelastic fluid ; Signal transduction ; Sperm ; Spermatozoa ; Swimming ; Thinning ; Thrust ; Thrust efficiency ; Viscoelastic fluids ; Viscoelasticity ; Viscosity</subject><ispartof>Journal of biomechanics, 2019-05, Vol.88, p.130-137</ispartof><rights>2019 Elsevier Ltd</rights><rights>Copyright © 2019 Elsevier Ltd. All rights reserved.</rights><rights>2019. Elsevier Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c554t-aee5a9b98d37ff3c73b9001bc19c76f43746afbc9ca49947f2ab2cc80b5fe613</citedby><cites>FETCH-LOGICAL-c554t-aee5a9b98d37ff3c73b9001bc19c76f43746afbc9ca49947f2ab2cc80b5fe613</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2216250882?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,778,782,3539,27907,27908,45978,64366,64368,64370,72220</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30954248$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hyakutake, Toru</creatorcontrib><creatorcontrib>Sato, Koichi</creatorcontrib><creatorcontrib>Sugita, Kenta</creatorcontrib><title>Study of bovine sperm motility in shear-thinning viscoelastic fluids</title><title>Journal of biomechanics</title><addtitle>J Biomech</addtitle><description>To elucidate the process whereby sperm arrive at an egg in the female reproductive organs, it is essential to investigate how rheological properties of the fluid around mammalian spermatozoa affect their motility. We examined the motility and flagellar waveform of bovine sperm swimming in a fluid with similar rheological properties as mammalian cervical mucus. The results indicated that the surrounding rheological properties largely affected the flagellar waveform of mammalian spermatozoa; in particular, shear-thinning viscoelastic fluid increased the progressive motility of the sperm. To investigate the influence of flagellar waveform on sperm motility in more detail, the waveform was expressed as a function and the progressive thrust of the sperm was calculated based on the empirical resistive force theory. The results of this study showed that the progressive thrust increased with the curvature of the flagellar tip. Moreover, we calculated the thrust efficiency of motile sperm. Results showed that the thrust efficiency in shear-thinning viscoelastic fluids was larger than that in Newtonian fluids, regardless of viscosity. This suggests that motile sperm in cervical mucus move efficiently by means of a motion mechanism that is suited to their surrounding environment.</description><subject>Bovine sperm</subject><subject>Cervix</subject><subject>Computing time</subject><subject>Curvature</subject><subject>Efficiency</subject><subject>Flagella</subject><subject>Mammals</subject><subject>Mathematical analysis</subject><subject>Mechanics</subject><subject>Motility</subject><subject>Mucus</subject><subject>Newtonian fluids</subject><subject>Non-Newtonian fluids</subject><subject>Organs</subject><subject>Properties (attributes)</subject><subject>Reproductive organs</subject><subject>Rheological properties</subject><subject>Rheology</subject><subject>Shear</subject><subject>Shear-thinning viscoelastic fluid</subject><subject>Signal transduction</subject><subject>Sperm</subject><subject>Spermatozoa</subject><subject>Swimming</subject><subject>Thinning</subject><subject>Thrust</subject><subject>Thrust efficiency</subject><subject>Viscoelastic fluids</subject><subject>Viscoelasticity</subject><subject>Viscosity</subject><issn>0021-9290</issn><issn>1873-2380</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqFkE1r3DAQhkVpabZp_0Iw5JKLt6Mv27olpJ8Q6KG5C0kedWVsayPZC_vvq2WTHnIpvDCXZ2ZeHkKuKGwp0ObzsB1siBO63ZYBVVvgJfIN2dCu5TXjHbwlGwBGa8UUXJAPOQ8A0IpWvScXHJQUTHQb8uX3svbHKvrKxkOYscp7TFM1xSWMYTlWYa7yDk2ql12Y5zD_qQ4hu4ijyUtwlR_X0OeP5J03Y8ZPz_OSPH77-nj_o3749f3n_d1D7aQUS20QpVFWdT1vveeu5VYBUOuocm3jBW9FY7x1yhmhlGg9M5Y514GVHhvKL8nN-ew-xacV86Kn0gXH0cwY16wZAylAUdYU9PoVOsQ1zaVcoWjDJHQdK1RzplyKOSf0ep_CZNJRU9AnzXrQL5r1SbMGXiLL4tXz-dVO2P9be_FagNszgEXHIWDS2QWcHfYhoVt0H8P_fvwFBYSR2A</recordid><startdate>20190509</startdate><enddate>20190509</enddate><creator>Hyakutake, Toru</creator><creator>Sato, Koichi</creator><creator>Sugita, Kenta</creator><general>Elsevier Ltd</general><general>Elsevier Limited</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7TB</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>M7P</scope><scope>MBDVC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope></search><sort><creationdate>20190509</creationdate><title>Study of bovine sperm motility in shear-thinning viscoelastic fluids</title><author>Hyakutake, Toru ; 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We examined the motility and flagellar waveform of bovine sperm swimming in a fluid with similar rheological properties as mammalian cervical mucus. The results indicated that the surrounding rheological properties largely affected the flagellar waveform of mammalian spermatozoa; in particular, shear-thinning viscoelastic fluid increased the progressive motility of the sperm. To investigate the influence of flagellar waveform on sperm motility in more detail, the waveform was expressed as a function and the progressive thrust of the sperm was calculated based on the empirical resistive force theory. The results of this study showed that the progressive thrust increased with the curvature of the flagellar tip. Moreover, we calculated the thrust efficiency of motile sperm. Results showed that the thrust efficiency in shear-thinning viscoelastic fluids was larger than that in Newtonian fluids, regardless of viscosity. This suggests that motile sperm in cervical mucus move efficiently by means of a motion mechanism that is suited to their surrounding environment.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><pmid>30954248</pmid><doi>10.1016/j.jbiomech.2019.03.035</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Bovine sperm Cervix Computing time Curvature Efficiency Flagella Mammals Mathematical analysis Mechanics Motility Mucus Newtonian fluids Non-Newtonian fluids Organs Properties (attributes) Reproductive organs Rheological properties Rheology Shear Shear-thinning viscoelastic fluid Signal transduction Sperm Spermatozoa Swimming Thinning Thrust Thrust efficiency Viscoelastic fluids Viscoelasticity Viscosity |
| title | Study of bovine sperm motility in shear-thinning viscoelastic fluids |
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