Immune Activation Reduces Sperm Quality in the Great Tit
Publication Date
July 12, 2011
Journal
PLOS ONE
Authors
Sylvain Losdat, Heinz Richner, Jonathan D. Blount & Fabrice Helfenstein
Volume
6
Issue
7
Pages
e22221
DOI
https://dx.plos.org/10.1371/journal.pone.0022221
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0022221
PubMed
http://www.ncbi.nlm.nih.gov/pubmed/21765955
PubMed Central
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3134482
Europe PMC
http://europepmc.org/abstract/MED/21765955
Web of Science
000292699000031
Scopus
79960198781
Mendeley
http://www.mendeley.com/research/immune-activation-reduces-sperm-quality-great-tit-5
Events
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Mendeley | Further Information

{"title"=>"Immune activation reduces sperm quality in the great tit", "type"=>"journal", "authors"=>[{"first_name"=>"Sylvain", "last_name"=>"Losdat", "scopus_author_id"=>"25652709100"}, {"first_name"=>"Heinz", "last_name"=>"Richner", "scopus_author_id"=>"7006085557"}, {"first_name"=>"Jonathan D.", "last_name"=>"Blount", "scopus_author_id"=>"20233415700"}, {"first_name"=>"Fabrice", "last_name"=>"Helfenstein", "scopus_author_id"=>"6603068024"}], "year"=>2011, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "scopus"=>"2-s2.0-79960198781", "pui"=>"362118195", "doi"=>"10.1371/journal.pone.0022221", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "sgr"=>"79960198781", "pmid"=>"21765955"}, "id"=>"0f7261c3-c659-3db3-b0ee-7219c8ef25c3", "abstract"=>"Mounting an immune response against pathogens incurs costs to organisms by its effects on important life-history traits, such as reproductive investment and survival. As shown recently, immune activation produces large amounts of reactive species and is suggested to induce oxidative stress. Sperm are highly susceptible to oxidative stress, which can negatively impact sperm function and ultimately male fertilizing efficiency. Here we address the question as to whether mounting an immune response affects sperm quality through the damaging effects of oxidative stress. It has been demonstrated recently in birds that carotenoid-based ornaments can be reliable signals of a male's ability to protect sperm from oxidative damage. In a full-factorial design, we immune-challenged great tit males while simultaneously increasing their vitamin E availability, and assessed the effect on sperm quality and oxidative damage. We conducted this experiment in a natural population and tested the males' response to the experimental treatment in relation to their carotenoid-based breast coloration, a condition-dependent trait. Immune activation induced a steeper decline in sperm swimming velocity, thus highlighting the potential costs of an induced immune response on sperm competitive ability and fertilizing efficiency. We found sperm oxidative damage to be negatively correlated with sperm swimming velocity. However, blood resistance to a free-radical attack (a measure of somatic antioxidant capacity) as well as plasma and sperm levels of oxidative damage (lipid peroxidation) remained unaffected, thus suggesting that the observed effect did not arise through oxidative stress. Towards the end of their breeding cycle, swimming velocity of sperm of more intensely colored males was higher, which has important implications for the evolution of mate choice and multiple mating in females because females may accrue both direct and indirect benefits by mating with males having better quality sperm.", "link"=>"http://www.mendeley.com/research/immune-activation-reduces-sperm-quality-great-tit-5", "reader_count"=>52, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Researcher"=>14, "Student > Doctoral Student"=>4, "Student > Ph. D. Student"=>16, "Student > Postgraduate"=>1, "Other"=>2, "Student > Master"=>7, "Student > Bachelor"=>5, "Professor"=>2}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Researcher"=>14, "Student > Doctoral Student"=>4, "Student > Ph. D. Student"=>16, "Student > Postgraduate"=>1, "Other"=>2, "Student > Master"=>7, "Student > Bachelor"=>5, "Professor"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>3, "Environmental Science"=>3, "Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>42, "Medicine and Dentistry"=>1, "Linguistics"=>1, "Sports and Recreations"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Sports and Recreations"=>{"Sports and Recreations"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>42}, "Linguistics"=>{"Linguistics"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>3}, "Environmental Science"=>{"Environmental Science"=>3}}, "reader_count_by_country"=>{"Romania"=>1, "Mexico"=>1, "South Africa"=>1, "United Kingdom"=>1, "Germany"=>2, "Spain"=>1}, "group_count"=>0}

Scopus | Further Information

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Figshare

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  • {"files"=>["https://ndownloader.figshare.com/files/757670"], "description"=>"<p>LPS-injected males: grey dots; PBS-injected males: black dots. Immune-challenged males showed significantly reduced sperm velocity two minutes after ejaculation (Tukey-adjusted post-hoc test: z = 2.74, p = 0.036).</p>", "links"=>[], "tags"=>["velocity", "ejaculation"], "article_id"=>428041, "categories"=>["Ecology", "Evolutionary Biology"], "users"=>["Sylvain Losdat", "Heinz Richner", "Jonathan D. Blount", "Fabrice Helfenstein"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0022221.g001", "stats"=>{"downloads"=>0, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Sperm_swimming_velocity_mean_177_se_in_relation_to_the_time_after_ejaculation_and_the_immune_challenge_/428041", "title"=>"Sperm swimming velocity (mean ± se) in relation to the time after ejaculation and the immune challenge.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 16:50:06"}
  • {"files"=>["https://ndownloader.figshare.com/files/757990"], "description"=>"<p>Significant terms in the model are highlighted in bold.</p>a<p>Relative to the PBS-injected group.</p>b<p>Relative to the placebo group.</p>", "links"=>[], "tags"=>["repeated", "measures", "e-supplementation", "sperm", "velocity", "60", "120", "seconds", "13"], "article_id"=>428354, "categories"=>["Ecology", "Evolutionary Biology"], "users"=>["Sylvain Losdat", "Heinz Richner", "Jonathan D. Blount", "Fabrice Helfenstein"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0022221.t002", "stats"=>{"downloads"=>0, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_REML_GLMM_for_repeated_measures_testing_the_effect_of_the_immune_challenge_and_the_vitamin_E_supplementation_on_dynamics_of_sperm_velocity_measured_0_60_and_120_seconds_after_ejaculation_on_day_13_post_hatch_/428354", "title"=>"REML-GLMM for repeated measures testing the effect of the immune challenge and the vitamin E-supplementation on dynamics of sperm velocity (measured 0, 60 and 120 seconds after ejaculation) on day 13 post-hatch.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-20 16:51:56"}
  • {"files"=>["https://ndownloader.figshare.com/files/757854"], "description"=>"<p>The line is the linear regression line.</p>", "links"=>[], "tags"=>["velocity", "13", "post-hatch", "levels", "malondialdehyde", "lipid"], "article_id"=>428221, "categories"=>["Ecology", "Evolutionary Biology"], "users"=>["Sylvain Losdat", "Heinz Richner", "Jonathan D. Blount", "Fabrice Helfenstein"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0022221.g003", "stats"=>{"downloads"=>1, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Sperm_swimming_velocity_on_day_13_post_hatch_in_relation_to_levels_of_malondialdehyde_end_product_of_lipid_peroxidation_in_sperm_/428221", "title"=>"Sperm swimming velocity on day 13 post-hatch in relation to levels of malondialdehyde (end-product of lipid peroxidation) in sperm.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 16:51:11"}
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  • {"files"=>["https://ndownloader.figshare.com/files/757949"], "description"=>"<p>Significant terms in the models are highlighted in bold.</p>a<p>Relative to the PBS-injected group.</p>b<p>Relative to the placebo group.</p>c<p>Relative to first capture on day 7.</p>", "links"=>[], "tags"=>["repeated", "measures", "within-male", "e-supplementation", "mda", "levels", "plasma", "krl", "13"], "article_id"=>428307, "categories"=>["Ecology", "Evolutionary Biology"], "users"=>["Sylvain Losdat", "Heinz Richner", "Jonathan D. Blount", "Fabrice Helfenstein"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0022221.t003", "stats"=>{"downloads"=>0, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_REML_GLMM_for_repeated_measures_testing_for_a_within_male_effect_of_the_immune_challenge_and_the_vitamin_E_supplementation_on_MDA_levels_in_semen_MDA_levels_in_plasma_and_KRL_between_day_7_and_13_post_hatch_/428307", "title"=>"REML-GLMM for repeated measures testing for a within-male effect of the immune challenge and the vitamin E-supplementation on MDA levels in semen, MDA levels in plasma and KRL between day 7 and 13 post-hatch.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-20 16:51:40"}

PMC Usage Stats | Further Information

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Relative Metric

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