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Levels of L-carnitine in human seminal plasma are associated with sperm fatty acid composition

Asian Journal of Andrology 2022年第5期24卷 451-457页

作者： Mario Iliceto Mette Haug Stensen Jorunn M Andersen Trine B Haugen Oliwia Witczak fertilitetssenteret Oslo 0176Norway Department of Life Sciences and Health OsloMet-Oslo Metropolitan UniversityOslo 0130Norway

The fatty acid composition of spermatozoa has been shown to be important for their function,and L-carnitine is crucial for fatty acid *** levels in the seminal plasma positively correlate with semen quality,whereas high body mass index(BMI)is associated with both reduced semen quality and altered sperm fatty acid ***,we examined the associations between free seminal L-carnitine levels and sperm fatty acid composition as well as *** samples were collected and analyzed from 128 men with unknown fertility status and with BMI ranging from 19 kg m^(−2) to 63 kg m^(−2).Sperm fatty acid composition was assessed by gas chromatography,while free seminal L-carnitine analysis was performed using high-performance liquid *** linear regression analysis showed a positive correlation of free seminal L-carnitine levels with the amount of sperm palmitic acid(β=0.21;P=0.014),docosahexaenoic acid(DHA;β=0.23;P=0.007),and total n-3 polyunsaturated fatty acids(β=0.23;P=0.008)and a negative correlation of free seminal L-carnitine levels with lignoceric acid(β=−0.29;P=0.001)and total n-6 polyunsaturated fatty acids(β=−0.24;P=0.012)when adjusted for *** was no relationship between free seminal L-carnitine levels and *** free seminal L-carnitine levels are associated with semen quality,the absence of a correlation with BMI suggests that reduced semen quality in obese men is independent of seminal L-carnitine.

关键词： body mass index L-carnitine male fertility semen quality sperm fatty acids spermatozoa

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