Conjugated linoleic acid improves oocyte cryosurvival through modulation of the cryoprotectants influx rate
In cryopreservation, oocytes are subjected to extreme hyperosmotic conditions, inducing large volume changes that, along with an abrupt temperature drop, interfere with their developmental competence. Our objectives in this work were to find conditions enabling an increase in oocyte cryosurvival and...
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| Veröffentlicht in: | Reproductive biology and endocrinology 2015-06, Vol.13 (1), p.60-60, Article 60 |
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| creator | Matos, Joana E Marques, Carla C Moura, Teresa F Baptista, Maria C Horta, Antonio E M Soveral, Graça Pereira, Rosa M L N |
| description | In cryopreservation, oocytes are subjected to extreme hyperosmotic conditions, inducing large volume changes that, along with an abrupt temperature drop, interfere with their developmental competence. Our objectives in this work were to find conditions enabling an increase in oocyte cryosurvival and subsequent development.
Abattoir-derived bovine oocytes were cultured without (Control group) or with trans-10,cis-12 conjugated linoleic acid isomer (CLA group). Comparative observations were made for 1) the oocyte developmental competence after exposure to cryoprotectants followed or not by vitrification/warming, 2) the oocyte membrane permeability to water (using the non-permeant cryoprotectant sucrose) and 3) the oocyte membrane permeability to two cryoprotectants (ethylene glycol, EG, and dimethyl sulfoxide, DMSO). Mature oocytes cultured with or without CLA and vitrified/warmed or only exposed to cryoprotectants without vitrification were subjected to in vitro fertilization; embryo culture proceeded until the blastocyst stage. The oocyte membrane permeabilities to water and cryoprotectants were estimated using mature oocytes subjected to hyperosmotic challenges. For water permeability, 200 mM sucrose was used, whereas for the cryoprotectant permeability, a 10 % solution of both EG and DMSO was used. The data were analyzed using the MIXED procedure and Student's T-test.
CLA supplementation improves the developmental competence of vitrified/warmed and cryoprotectants exposed oocytes (p |
| doi_str_mv | 10.1186/s12958-015-0059-3 |
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Abattoir-derived bovine oocytes were cultured without (Control group) or with trans-10,cis-12 conjugated linoleic acid isomer (CLA group). Comparative observations were made for 1) the oocyte developmental competence after exposure to cryoprotectants followed or not by vitrification/warming, 2) the oocyte membrane permeability to water (using the non-permeant cryoprotectant sucrose) and 3) the oocyte membrane permeability to two cryoprotectants (ethylene glycol, EG, and dimethyl sulfoxide, DMSO). Mature oocytes cultured with or without CLA and vitrified/warmed or only exposed to cryoprotectants without vitrification were subjected to in vitro fertilization; embryo culture proceeded until the blastocyst stage. The oocyte membrane permeabilities to water and cryoprotectants were estimated using mature oocytes subjected to hyperosmotic challenges. For water permeability, 200 mM sucrose was used, whereas for the cryoprotectant permeability, a 10 % solution of both EG and DMSO was used. The data were analyzed using the MIXED procedure and Student's T-test.
CLA supplementation improves the developmental competence of vitrified/warmed and cryoprotectants exposed oocytes (p < 0.01) and reduces their membrane permeability to water (37 %, p < 0.001) and to cryoprotectants (42 %, p < 0.001).
By slowing the fluxes of water and of permeant cryoprotectants, CLA contributed to improved oocyte cryosurvival and post-thawed viability. This isomer supplementation to the maturation media should be considered when designing new protocols for oocyte cryopreservation.</description><identifier>ISSN: 1477-7827</identifier><identifier>EISSN: 1477-7827</identifier><identifier>DOI: 10.1186/s12958-015-0059-3</identifier><identifier>PMID: 26066493</identifier><language>eng</language><publisher>England: BioMed Central Ltd</publisher><subject>Amino acids ; Animals ; Cattle ; Cell Membrane Permeability ; Comparative analysis ; Cryopreservation - methods ; Cryoprotective Agents - pharmacology ; Dimethyl sulfoxide ; Embryonic development ; Ethylene ; Ethylene glycol ; Female ; Fertilization in Vitro ; Health aspects ; Linoleic acids ; Linoleic Acids, Conjugated - pharmacology ; Oocytes - cytology ; Oocytes - drug effects ; Permeability ; Physiological aspects ; Unsaturated fatty acids</subject><ispartof>Reproductive biology and endocrinology, 2015-06, Vol.13 (1), p.60-60, Article 60</ispartof><rights>COPYRIGHT 2015 BioMed Central Ltd.</rights><rights>Matos et al. 2015</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c532t-902ed8a6ae90edfa4dc440f23416ef820c5a3163643c2dd0c0759a4fda8b3ae43</citedby><cites>FETCH-LOGICAL-c532t-902ed8a6ae90edfa4dc440f23416ef820c5a3163643c2dd0c0759a4fda8b3ae43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465151/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465151/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26066493$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Matos, Joana E</creatorcontrib><creatorcontrib>Marques, Carla C</creatorcontrib><creatorcontrib>Moura, Teresa F</creatorcontrib><creatorcontrib>Baptista, Maria C</creatorcontrib><creatorcontrib>Horta, Antonio E M</creatorcontrib><creatorcontrib>Soveral, Graça</creatorcontrib><creatorcontrib>Pereira, Rosa M L N</creatorcontrib><title>Conjugated linoleic acid improves oocyte cryosurvival through modulation of the cryoprotectants influx rate</title><title>Reproductive biology and endocrinology</title><addtitle>Reprod Biol Endocrinol</addtitle><description>In cryopreservation, oocytes are subjected to extreme hyperosmotic conditions, inducing large volume changes that, along with an abrupt temperature drop, interfere with their developmental competence. Our objectives in this work were to find conditions enabling an increase in oocyte cryosurvival and subsequent development.
Abattoir-derived bovine oocytes were cultured without (Control group) or with trans-10,cis-12 conjugated linoleic acid isomer (CLA group). Comparative observations were made for 1) the oocyte developmental competence after exposure to cryoprotectants followed or not by vitrification/warming, 2) the oocyte membrane permeability to water (using the non-permeant cryoprotectant sucrose) and 3) the oocyte membrane permeability to two cryoprotectants (ethylene glycol, EG, and dimethyl sulfoxide, DMSO). Mature oocytes cultured with or without CLA and vitrified/warmed or only exposed to cryoprotectants without vitrification were subjected to in vitro fertilization; embryo culture proceeded until the blastocyst stage. The oocyte membrane permeabilities to water and cryoprotectants were estimated using mature oocytes subjected to hyperosmotic challenges. For water permeability, 200 mM sucrose was used, whereas for the cryoprotectant permeability, a 10 % solution of both EG and DMSO was used. The data were analyzed using the MIXED procedure and Student's T-test.
CLA supplementation improves the developmental competence of vitrified/warmed and cryoprotectants exposed oocytes (p < 0.01) and reduces their membrane permeability to water (37 %, p < 0.001) and to cryoprotectants (42 %, p < 0.001).
By slowing the fluxes of water and of permeant cryoprotectants, CLA contributed to improved oocyte cryosurvival and post-thawed viability. This isomer supplementation to the maturation media should be considered when designing new protocols for oocyte cryopreservation.</description><subject>Amino acids</subject><subject>Animals</subject><subject>Cattle</subject><subject>Cell Membrane Permeability</subject><subject>Comparative analysis</subject><subject>Cryopreservation - methods</subject><subject>Cryoprotective Agents - pharmacology</subject><subject>Dimethyl sulfoxide</subject><subject>Embryonic development</subject><subject>Ethylene</subject><subject>Ethylene glycol</subject><subject>Female</subject><subject>Fertilization in Vitro</subject><subject>Health aspects</subject><subject>Linoleic acids</subject><subject>Linoleic Acids, Conjugated - pharmacology</subject><subject>Oocytes - cytology</subject><subject>Oocytes - drug effects</subject><subject>Permeability</subject><subject>Physiological aspects</subject><subject>Unsaturated fatty acids</subject><issn>1477-7827</issn><issn>1477-7827</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNptkU1r3DAQhk1padK0P6CXIuilF6cj68PWpRCWfkGgl_YsFGm8q1S2tpK8ZP99tTgNCRQdJEbP-84Mb9O8pXBJ6SA_ZtopMbRARQsgVMueNeeU933bD13__NH7rHmV8y1ABzDIl81ZJ0FKrth583sT59tlawo6EvwcA3pLjPWO-Gmf4gEzidEeCxKbjjEv6eAPJpCyS3HZ7sgU3RJM8XEmcazVFavCgraYuWTi5zEsdyTVDq-bF6MJGd_c3xfNry-ff26-tdc_vn7fXF23VrCutAo6dIORBhWgGw13lnMYO8apxHHowArDqGSSM9s5BxZ6oQwfnRlumEHOLppPq-9-uZnQWZxLMkHvk59MOupovH76M_ud3saD5lwKKmg1-HBvkOKfBXPRk88WQzAzxiVrKgfFQFW2ou9XdGsC6rpsrI72hOsrwakACeo00eV_qHocTt7GGUdf608EdBXYFHNOOD5MT0Gfstdr9rpmr0_Za1Y17x6v_aD4Fzb7C41wrSk</recordid><startdate>20150612</startdate><enddate>20150612</enddate><creator>Matos, Joana E</creator><creator>Marques, Carla C</creator><creator>Moura, Teresa F</creator><creator>Baptista, Maria C</creator><creator>Horta, Antonio E M</creator><creator>Soveral, Graça</creator><creator>Pereira, Rosa M L N</creator><general>BioMed Central Ltd</general><general>BioMed Central</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20150612</creationdate><title>Conjugated linoleic acid improves oocyte cryosurvival through modulation of the cryoprotectants influx rate</title><author>Matos, Joana E ; Marques, Carla C ; Moura, Teresa F ; Baptista, Maria C ; Horta, Antonio E M ; Soveral, Graça ; Pereira, Rosa M L N</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c532t-902ed8a6ae90edfa4dc440f23416ef820c5a3163643c2dd0c0759a4fda8b3ae43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Amino acids</topic><topic>Animals</topic><topic>Cattle</topic><topic>Cell Membrane Permeability</topic><topic>Comparative analysis</topic><topic>Cryopreservation - methods</topic><topic>Cryoprotective Agents - pharmacology</topic><topic>Dimethyl sulfoxide</topic><topic>Embryonic development</topic><topic>Ethylene</topic><topic>Ethylene glycol</topic><topic>Female</topic><topic>Fertilization in Vitro</topic><topic>Health aspects</topic><topic>Linoleic acids</topic><topic>Linoleic Acids, Conjugated - pharmacology</topic><topic>Oocytes - cytology</topic><topic>Oocytes - drug effects</topic><topic>Permeability</topic><topic>Physiological aspects</topic><topic>Unsaturated fatty acids</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Matos, Joana E</creatorcontrib><creatorcontrib>Marques, Carla C</creatorcontrib><creatorcontrib>Moura, Teresa F</creatorcontrib><creatorcontrib>Baptista, Maria C</creatorcontrib><creatorcontrib>Horta, Antonio E M</creatorcontrib><creatorcontrib>Soveral, Graça</creatorcontrib><creatorcontrib>Pereira, Rosa M L N</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Reproductive biology and endocrinology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Matos, Joana E</au><au>Marques, Carla C</au><au>Moura, Teresa F</au><au>Baptista, Maria C</au><au>Horta, Antonio E M</au><au>Soveral, Graça</au><au>Pereira, Rosa M L N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Conjugated linoleic acid improves oocyte cryosurvival through modulation of the cryoprotectants influx rate</atitle><jtitle>Reproductive biology and endocrinology</jtitle><addtitle>Reprod Biol Endocrinol</addtitle><date>2015-06-12</date><risdate>2015</risdate><volume>13</volume><issue>1</issue><spage>60</spage><epage>60</epage><pages>60-60</pages><artnum>60</artnum><issn>1477-7827</issn><eissn>1477-7827</eissn><abstract>In cryopreservation, oocytes are subjected to extreme hyperosmotic conditions, inducing large volume changes that, along with an abrupt temperature drop, interfere with their developmental competence. Our objectives in this work were to find conditions enabling an increase in oocyte cryosurvival and subsequent development.
Abattoir-derived bovine oocytes were cultured without (Control group) or with trans-10,cis-12 conjugated linoleic acid isomer (CLA group). Comparative observations were made for 1) the oocyte developmental competence after exposure to cryoprotectants followed or not by vitrification/warming, 2) the oocyte membrane permeability to water (using the non-permeant cryoprotectant sucrose) and 3) the oocyte membrane permeability to two cryoprotectants (ethylene glycol, EG, and dimethyl sulfoxide, DMSO). Mature oocytes cultured with or without CLA and vitrified/warmed or only exposed to cryoprotectants without vitrification were subjected to in vitro fertilization; embryo culture proceeded until the blastocyst stage. The oocyte membrane permeabilities to water and cryoprotectants were estimated using mature oocytes subjected to hyperosmotic challenges. For water permeability, 200 mM sucrose was used, whereas for the cryoprotectant permeability, a 10 % solution of both EG and DMSO was used. The data were analyzed using the MIXED procedure and Student's T-test.
CLA supplementation improves the developmental competence of vitrified/warmed and cryoprotectants exposed oocytes (p < 0.01) and reduces their membrane permeability to water (37 %, p < 0.001) and to cryoprotectants (42 %, p < 0.001).
By slowing the fluxes of water and of permeant cryoprotectants, CLA contributed to improved oocyte cryosurvival and post-thawed viability. This isomer supplementation to the maturation media should be considered when designing new protocols for oocyte cryopreservation.</abstract><cop>England</cop><pub>BioMed Central Ltd</pub><pmid>26066493</pmid><doi>10.1186/s12958-015-0059-3</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; SpringerLink Journals; PubMed Central Open Access; Springer Nature OA Free Journals; EZB-FREE-00999 freely available EZB journals; PubMed Central |
| subjects | Amino acids Animals Cattle Cell Membrane Permeability Comparative analysis Cryopreservation - methods Cryoprotective Agents - pharmacology Dimethyl sulfoxide Embryonic development Ethylene Ethylene glycol Female Fertilization in Vitro Health aspects Linoleic acids Linoleic Acids, Conjugated - pharmacology Oocytes - cytology Oocytes - drug effects Permeability Physiological aspects Unsaturated fatty acids |
| title | Conjugated linoleic acid improves oocyte cryosurvival through modulation of the cryoprotectants influx rate |
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