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In boar sperm capacitation L-lactate and succinate, but not pyruvate and citrate, contribute to the mitochondrial membrane potential increase as monitored via safranine O fluorescence.

Abstract：

:Having ascertained using JC-1 as a probe that, in distinction with the controls, during capacitation boar sperm maintains high mitochondrial membrane potential (ΔΨ), to gain some insight into the role of mitochondria in capacitation, we monitored ΔΨ generation due to externally added metabolites either in hypotonically-treated spermatozoa (HTS) or in intact cells by using safranine O as a probe. During capacitation, the addition to HTS of L-lactate and succinate but not those of pyruvate, citrate and ascorbate + TMPD resulted in increase of ΔΨ generation. Accordingly, the addition of L-lactate and succinate, but not that of citrate, to intact sperm resulted in ΔΨ generation increased in capacitation.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Paventi G,Lessard C,Bailey JL,Passarella S

doi

10.1016/j.bbrc.2015.04.128

subject

Has Abstract

pub_date

2015-07-03 00:00:00

pages

257-62

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(15)00848-7

journal_volume

462

pub_type

杂志文章

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