Melatonin has dose-dependent effects on folliculogenesis, oocyte maturation capacity and steroidogenesis

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Melatonin has dose-dependent effects on folliculogenesis, oocyte maturation capacity and steroidogenesis. / Adriaens, Iris; Jacquet, Paul; Cortvrindt, Rita; Janssen, Karine; Smitz, Johan.

In: Toxicology, Vol. 228, No. 2-3, 12.2006, p. 333-343.

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Adriaens, Iris ; Jacquet, Paul ; Cortvrindt, Rita ; Janssen, Karine ; Smitz, Johan. / Melatonin has dose-dependent effects on folliculogenesis, oocyte maturation capacity and steroidogenesis. In: Toxicology. 2006 ; Vol. 228, No. 2-3. pp. 333-343.

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@article{3bde991ca9e440dda2ce4933fd7e4962,
title = "Melatonin has dose-dependent effects on folliculogenesis, oocyte maturation capacity and steroidogenesis",
abstract = "Chemo and/or radiotherapy applied to young cancer patients most often have severe effects upon female fertility. Drugs that could protect the oocyte and its surrounding feeder cells from damage can be of great importance. This paper reports the direct effects of different melatonin (a powerful antioxidant) concentrations (range: 1 nM to 2 mM) on folliculogenesis and oogenesis of in vitro cultured mouse ovarian follicles. Early secondary mouse follicles were cultured in vitro for 12 days under different melatonin regimes. Every fourth day, survival rates were scored, follicles were morphologically evaluated and medium was collected for steroid analyses. On day 12, in vitro ovulation was induced by hCG/EGF. Eighteen hours later, oocytes were measured, oocyte maturation was evaluated and normality of spindle and chromosomes ascertained. Results obtained in this study indicated that 2mM melatonin is toxic. One mM negatively influenced oocyte maturation capacity. In the presence of 100 µM melatonin, androstenedione and progesterone were increased whereas estradiol was not influenced. Lower melatonin concentrations had no effect on the evaluated parameters. These data indicate an effect of melatonin on theca cell steroidogenesis. For prophylactic use, a dose of 10 µM could be suitable to reduce oxidative stress in cultured follicles.",
keywords = "melatonin, ovary, folliculogenesis, oogenesis, steroidogenesis",
author = "Iris Adriaens and Paul Jacquet and Rita Cortvrindt and Karine Janssen and Johan Smitz",
note = "Score = 10",
year = "2006",
month = "12",
doi = "10.1016/j.tox.2006.09.018",
language = "English",
volume = "228",
pages = "333--343",
journal = "Toxicology",
issn = "0300-483X",
publisher = "Elsevier",
number = "2-3",

}

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TY - JOUR

T1 - Melatonin has dose-dependent effects on folliculogenesis, oocyte maturation capacity and steroidogenesis

AU - Adriaens, Iris

AU - Jacquet, Paul

AU - Cortvrindt, Rita

AU - Janssen, Karine

AU - Smitz, Johan

N1 - Score = 10

PY - 2006/12

Y1 - 2006/12

N2 - Chemo and/or radiotherapy applied to young cancer patients most often have severe effects upon female fertility. Drugs that could protect the oocyte and its surrounding feeder cells from damage can be of great importance. This paper reports the direct effects of different melatonin (a powerful antioxidant) concentrations (range: 1 nM to 2 mM) on folliculogenesis and oogenesis of in vitro cultured mouse ovarian follicles. Early secondary mouse follicles were cultured in vitro for 12 days under different melatonin regimes. Every fourth day, survival rates were scored, follicles were morphologically evaluated and medium was collected for steroid analyses. On day 12, in vitro ovulation was induced by hCG/EGF. Eighteen hours later, oocytes were measured, oocyte maturation was evaluated and normality of spindle and chromosomes ascertained. Results obtained in this study indicated that 2mM melatonin is toxic. One mM negatively influenced oocyte maturation capacity. In the presence of 100 µM melatonin, androstenedione and progesterone were increased whereas estradiol was not influenced. Lower melatonin concentrations had no effect on the evaluated parameters. These data indicate an effect of melatonin on theca cell steroidogenesis. For prophylactic use, a dose of 10 µM could be suitable to reduce oxidative stress in cultured follicles.

AB - Chemo and/or radiotherapy applied to young cancer patients most often have severe effects upon female fertility. Drugs that could protect the oocyte and its surrounding feeder cells from damage can be of great importance. This paper reports the direct effects of different melatonin (a powerful antioxidant) concentrations (range: 1 nM to 2 mM) on folliculogenesis and oogenesis of in vitro cultured mouse ovarian follicles. Early secondary mouse follicles were cultured in vitro for 12 days under different melatonin regimes. Every fourth day, survival rates were scored, follicles were morphologically evaluated and medium was collected for steroid analyses. On day 12, in vitro ovulation was induced by hCG/EGF. Eighteen hours later, oocytes were measured, oocyte maturation was evaluated and normality of spindle and chromosomes ascertained. Results obtained in this study indicated that 2mM melatonin is toxic. One mM negatively influenced oocyte maturation capacity. In the presence of 100 µM melatonin, androstenedione and progesterone were increased whereas estradiol was not influenced. Lower melatonin concentrations had no effect on the evaluated parameters. These data indicate an effect of melatonin on theca cell steroidogenesis. For prophylactic use, a dose of 10 µM could be suitable to reduce oxidative stress in cultured follicles.

KW - melatonin

KW - ovary

KW - folliculogenesis

KW - oogenesis

KW - steroidogenesis

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_78129

UR - http://knowledgecentre.sckcen.be/so2/bibref/4169

U2 - 10.1016/j.tox.2006.09.018

DO - 10.1016/j.tox.2006.09.018

M3 - Article

VL - 228

SP - 333

EP - 343

JO - Toxicology

JF - Toxicology

SN - 0300-483X

IS - 2-3

ER -

ID: 285163