Abstract：
:The need to protect human spermatozoa from oxidative stress during assisted reproductive technology, has prompted a detailed analysis of the impacts of phenolic compounds on the functional integrity of these cells. Investigation of 16 individual compounds revealed a surprising variety of negative effects including: (i) a loss of mitochondrial membrane potential (Δψm) via mechanisms that were not related to opening of the permeability transition pore but associated with a reduction in thiol expression, (ii) a decline in intracellular reduced glutathione, (iii) the stimulation of pro-oxidant activity including the induction of ROS generation from mitochondrial and non-mitochondrial sources, (iv) stimulation of lipid peroxidation, (v) the generation of oxidative DNA damage, and (vi) impaired sperm motility. For most of the polyphenolic compounds examined, the loss of motility was gradual and highly correlated with the induction of lipid peroxidation (r=0.889). The exception was gossypol, which induced a rapid loss of motility due to its inherent alkylating activity; one consequence of which was a marked reduction in carboxymethyl lysine expression on the sperm tail; a post-translational modification that is known to play a key role in the regulation of sperm movement. The only polyphenols that did not appear to have adverse effects on spermatozoa were resveratrol, genistein and THP at doses below 100μM. These compounds could, therefore, have some therapeutic potential in a clinical setting.
journal_name
Biochem Pharmacoljournal_title
Biochemical pharmacologyauthors
Aitken RJ,Muscio L,Whiting S,Connaughton HS,Fraser BA,Nixon B,Smith ND,De Iuliis GNdoi
10.1016/j.bcp.2016.09.015subject
Has Abstractpub_date
2016-12-01 00:00:00pages
78-96eissn
0006-2952issn
1873-2968pii
S0006-2952(16)30298-2journal_volume
121pub_type
杂志文章abstract：:A series of trifluoromethanesulfonamides (TFMS) was synthesized and tested for uncoupling activity in rat liver mitochondria. With succinate as the mitochondrial substrate, and the respiratory control index (RCI) as an indicator of their uncoupling ability, we found that all of the TFMS tested were uncouplers of oxida...
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
doi：10.1016/0006-2952(83)90144-2
更新日期：1983-12-15 00:00:00
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
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更新日期：1995-10-26 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
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更新日期：2011-11-15 00:00:00
