Tryptophan Catabolism to Serotonin and Kynurenine in Women Undergoing in-vitro Fertilization

Bodis J, Sulyok E, Koppan M, Varnagy A, Premusz V, Godony K, Rascher W, Rauh M (2020)


Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 69

Pages Range: 1-12

Journal Issue: 6

DOI: 10.33549/physiolres.934435

Abstract

This cross-sectional clinical study was designed to explore the impact of tryptophan-kynurenine and tryptophan-serotonin (5-HT) pathways on reproductive performance during in vitro fertilization (IVF). Paired serum and follicular fluid (FF) samples were obtained from 64 consecutive IVF patients. The analysis was done by using LC-MS/MS. Ovarian hyperstimulation resulted in decreased serum tryptophan (p<0.004), 5-HT (p<0.049) and kynurenine (p<0.001). FF levels of tryptophan (R=0.245, p<0.051), kynurenine (R=0.556, p<0.001) and 5-HT (R=0.523, p<0.001) were positively related to their respective serum levels. Clinical pregnancy was associated with higher serum 5-HT (p<0.045) and FF 5-HT (p<0.020) and lower kynurenine to 5-HT ratio (p<0.024). Chemical pregnancy was also positively related to FF 5-HT (R=0.362, p<0.024). Moreover, there was a direct relationship of the number of mature oocytes to the FF 5-HT (R=0.363, p<0.020) but it was inversely related to FF tryptophan to 5-HT and FF kynurenine to 5-HT ratios (R=-0.389, p<0.016 and R=-0.337, p<0.036, respectively). Multivariate logistic regression revealed that the number of mature oocytes was significantly influenced by FF 5-HT (β=0.473, p<0.001). In IVF patients ovarian hyperstimulation results in a reduction of the availability of tryptophan to catabolic pathways to kynurenine and 5-HT. Outcome measures improved significantly when 5-HT predominated over kynurenine.

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APA:

Bodis, J., Sulyok, E., Koppan, M., Varnagy, A., Premusz, V., Godony, K.,... Rauh, M. (2020). Tryptophan Catabolism to Serotonin and Kynurenine in Women Undergoing in-vitro Fertilization. Physiological Research, 69(6), 1-12. https://doi.org/10.33549/physiolres.934435

MLA:

Bodis, Jozsef, et al. "Tryptophan Catabolism to Serotonin and Kynurenine in Women Undergoing in-vitro Fertilization." Physiological Research 69.6 (2020): 1-12.

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