A placebo-controlled double-blind randomized trial of the use of combined l-carnitine and l-acetyl-carnitine treatment in men with asthenozoospermia.

Abstract:

OBJECTIVE:To determine the efficacy of combined l-carnitine and l-acetyl-carnitine therapy in infertile males with oligo-astheno-teratozoospermia. DESIGN:Placebo-controlled double-blind randomized trial. SETTING:University tertiary referral center. PATIENT(S):Sixty infertile patients (aged 20-40 years) with the following baseline sperm selection criteria: concentration, 10 to 40 x 10(6)/mL; forward motility, <15%; total motility, 10% to 40%; and atypical forms, <80%. Fifty-six patients completed the study. INTERVENTION(S):Patients were submitted to a combined treatment of l-carnitine (2 g/d) and l-acetyl-carnitine (1 g/d) or of placebo; the study design was 2 months' wash-out, 6 months of therapy or of placebo, and 2 months' follow-up. MAIN OUTCOME MEASURE(S):Variation in the semen parameters that were used for patient selection. RESULT(S):Even though increases were seen in all sperm parameters after combined carnitine treatment, the most significant improvement in sperm motility (both forward and total) was present in patients who had lower initial absolute values of motile sperm (<4 x 10(6) forward or <5 x 10(6) total motile spermatozoa per ejaculate). CONCLUSION(S):Combined treatment with l-carnitine and l-acetyl-carnitine in a controlled study of efficacy was effective in increasing sperm motility, especially in groups with lower baseline levels.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Lenzi A,Sgrò P,Salacone P,Paoli D,Gilio B,Lombardo F,Santulli M,Agarwal A,Gandini L

doi

10.1016/j.fertnstert.2003.10.034

keywords:

subject

Has Abstract

pub_date

2004-06-01 00:00:00

pages

1578-84

issue

6

eissn

0015-0282

issn

1556-5653

pii

S0015028204002092

journal_volume

81

pub_type

临床试验,杂志文章,随机对照试验
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    authors: Brosens IA,Van Ballaer P,Puttemans P,Deprest J

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  • Loupes or microscope for tubal anastomosis? An experimental study.

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  • The effect of intrauterine devices containing zinc and copper on their levels in serum.

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    doi:10.1016/s0015-0282(16)43032-3

    authors: Anteby SO,Bassat HA,Yarkoni S,Aboulafia Y,Sadovsky E

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  • Amenorrhea in Olympic marathon runners.

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    doi:

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  • Androstenedione and progesterone concentrations in preovulatory follicular fluid correlate with successful fertilization and cleavage of human oocytes in vitro.

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    journal_title:Fertility and sterility

    pub_type: 临床试验,杂志文章,随机对照试验

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    更新日期:1991-08-01 00:00:00

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    更新日期:1984-08-01 00:00:00

  • Luteinizing hormone increases platelet-derived growth factor-D gene expression in human granulosa-luteal cells.

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    更新日期:1997-09-01 00:00:00

  • Induction of ovulation with pulsatile subcutaneous administration of human menopausal gonadotropin in anovulatory infertile women.

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    更新日期:1986-07-01 00:00:00

  • Endometrial preparation for frozen-thawed embryo transfer with or without pretreatment with gonadotropin-releasing hormone agonist.

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    journal_title:Fertility and sterility

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