关键词: catecholamines gonadotropin-releasing hormone hypothalamus prenatal hyperhomocysteinemia

Mesh : Animals Antioxidants / pharmacology Arcuate Nucleus of Hypothalamus / drug effects metabolism physiopathology Catecholamines / metabolism Estrous Cycle / drug effects Female Gonadotropin-Releasing Hormone / metabolism Hyperhomocysteinemia / chemically induced metabolism physiopathology prevention & control Luteinizing Hormone / metabolism Median Eminence / drug effects metabolism physiopathology Melatonin / pharmacology Methionine / adverse effects metabolism Neuroprotective Agents / pharmacology Norepinephrine / metabolism Pregnancy Prenatal Exposure Delayed Effects / chemically induced metabolism physiopathology prevention & control Preoptic Area / drug effects metabolism physiopathology Progesterone / metabolism Rats Rats, Wistar

来  源:   DOI:10.1007/s10517-017-3701-6

Abstract:
Effects of prenatal hyperhomocysteinemia on hypothalamic regulation of estrous cycles were studied in female rats. In mature rats exposed to prenatal hyperhomocysteinemia, changes in the catecholamine content in hypothalamic areas responsible for the formation of the preovulatory surge of gonadotropin-releasing hormone were revealed: the level of norepinephrine in the medial preoptic area decreased and concentration of dopamine in the median eminence with arcuate nuclei increased. Administration of melatonin attenuated the observed changes, which can be related to neuroprotective effects of this hormone determined by its antioxidant properties.
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