Adjuvant L-arginine treatment in controlled ovarian hyperstimulation: a double-blind, randomized study

被引:38
作者
Battaglia, C
Regnani, G
Marsella, T
Facchinetti, F
Volpe, A
Venturoli, S
Flamigni, C
机构
[1] Univ Bologna, Dept Obstet & Gynaecol 1, Reprod Med Unit, I-40138 Bologna, Italy
[2] Univ Modena, Dept Obstet & Gynaecol, I-41100 Modena, Italy
关键词
controlled ovarian hyperstimulation; Doppler; IVF; L-arginine; nitric oxide;
D O I
10.1093/humrep/17.3.659
中图分类号
R71 [妇产科学];
学科分类号
100211 ;
摘要
BACKGROUND: Enhanced vascularization appears to be important for follicular selection and maturation in both spontaneous and stimulated IVF cycles. Nitric oxide, formed in vivo from L-arginine, may play a key role in follicular maturation and ovulation. METHODS: To evaluate the role Of L-arginine supplementation in controlled ovarian hyperstimulation, 37 IVF patients were divided into two groups according to ovarian stimulation protocols: group 1, GnRH agonist plus pure (p)FSH plus oral L-arginine (n = 18); and group 11, GnRH agonist plus pFSH plus placebo (n = 19). Hormonal, ultrasonographic and Doppler evaluations were performed, and plasma and follicular fluid nitrite/nitrate concentrations were monitored. RESULTS: Thirty-two patients completed the study. In group I (n = 16), plasma L-arginine concentrations increased from (basal) 87 +/- 12 mumol to 279 +/- 31 mumol (P = 0.002) on the day of beta-HCG administration. In this group, pFSH treatment was shorter (P = 0.039) than in group II (n = 16). The number of the follicles greater than or equal to17 nun was lower (P = 0.038) in group I than group II. The 'good quality' embryos were fewer in number (P = 0.034) and pregnancy rate, both per patient (P = 0.024) and per embryo transfer (P = 0.019), was lower in group I. In the L-arginine group, an increased follicular fluid concentration of nitrite/nitrate was observed. On day 8 of the cycle, elevated plasma estradiol levels were associated with decreased blood flow resistances of perifollicular arteries. Follicular fluid concentrations of nitrite/nitrate were inversely correlated with embryo quality (r = -0.613; P = 0.005) and perifollicular artery pulsatility index (r = -0.609; P = 0.021). CONCLUSIONS: L-Arginine supplementation may be detrimental to embryo quality and pregnancy rate during controlled ovarian hyperstimulation cycles.
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页码:659 / 665
页数:7
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