LUTEINIZING-HORMONE PULSATILE RELEASE AND THE LENGTH OF LACTATIONAL AMENORRHEA

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dc.contributor.authorDIAZ, S
dc.contributor.authorCARDENAS, H
dc.contributor.authorZEPEDA, A
dc.contributor.authorBRANDEIS, A
dc.contributor.authorSCHIAPPACASSE, V
dc.contributor.authorMIRANDA, P
dc.contributor.authorSERONFERRE, M
dc.contributor.authorCROXATTO, HB
dc.date.accessioned2025-01-21T01:34:35Z
dc.date.available2025-01-21T01:34:35Z
dc.date.issued1995
dc.description.abstractThe pattern of luteinizing hormone (LH) pulsatile release and the mean concentrations of follicle-stimulating hormone, oestradiol and progesterone were studied in nursing and non-nursing women. Blood samples were drawn at 5 min intervals between 10:00 and 14:00 h and between 22:00 and 02:00 h at months 3-4, 5-6, 7-8 and 9-10 post-partum in nursing women and in the follicular phase in non-nursing women. In nursing women, mean LH concentrations at months 3-4 were significantly lower than in non-nursing cycling women only in the subgroup which subsequently experienced >6 months of lactational amenorrhoea, although all were fully nursing with a similar suckling frequency. LH pulses in plasma were found at all times in nursing women. There were no significant differences in the frequency (about four pulses every 4 h), amplitude or duration of LH pulses related to the duration of amenorrhoea, nor did these parameters vary significantly between amenorrhoeic or cycling nursing women and nonnursing women. Nursing amenorrhoeic women exhibited a normal frequency of LH pulse well in advance of the resumption of the first post-partum menses, suggesting that mechanisms other than the suppression of the gonadotrophin-releasing hormone pulse generator intervened in the inhibition of ovarian function during lactation.
dc.fuente.origenWOS
dc.identifier.issn0268-1161
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97577
dc.identifier.wosidWOS:A1995RU03700007
dc.issue.numero8
dc.language.isoen
dc.pagina.final1961
dc.pagina.inicio1957
dc.revistaHuman reproduction
dc.rightsacceso restringido
dc.subjectBREAST-FEEDING
dc.subjectLACTATIONAL AMENORRHEA
dc.subjectLUTEINIZING HORMONE PULSES
dc.subjectPOSTPARTUM
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleLUTEINIZING-HORMONE PULSATILE RELEASE AND THE LENGTH OF LACTATIONAL AMENORRHEA
dc.typeartículo
dc.volumen10
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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