Maternal prolactin concentrations and lactational behaviour in the early postpartum period in women with lactational amenorrhoea.

dc.contributor.authorTennekoon, K Hen_US
dc.date.accessioned2009-05-28T05:03:59Z
dc.date.available2009-05-28T05:03:59Z
dc.date.issued2001-03-26en_US
dc.descriptionThe Ceylon Medical Journal.en_US
dc.description.abstractOBJECTIVE: To compare early postpartum differences in maternal prolactin concentrations and lactational behaviour between women who have short and long periods of lactational amenorrhoea. METHODS: Healthy lactating women resuming regular menstruation before 24 weeks [short amenorrhoea (SA) group; n = 15], and at or after 24 weeks [long amenorrhoea (LA) group; n = 15] postpartum were studied from 4 to 12 weeks postpartum. Infant feeding pattern and maternal plasma prolactin concentrations were compared between the two groups using repeated measures ANOVA. RESULTS: Breastfeeds/24 h were significantly higher and other feeds/24 h were significantly lower (p < 0.01) at 12 weeks postpartum in the LA group when expressed as a percentage of all feeds. Number of breastfeeds (total/24 h and night) significantly decreased and the number of other feeds significantly increased (p < 0.05 to 0 < 0.001) with time in both groups. Prolactin concentrations (basal, suckling stimulated and increment) were higher in the LA group, but consistent significant differences were observed mainly in the increment (p < 0.05 to p < 0.001). Prolactin concentrations significantly (p < 0.01 to < 0.001) decreased with time postpartum in the SA group, but not in the LA group. CONCLUSIONS: Women with longer periods of lactational amenorrhoea maintain higher prolactin concentrations than those with shorter periods of lactational amenorrhoea during the early postpartum period, even when the breastfeeding frequency is reduced. This could be explained by a greater sensitivity of the pituitary lactotrophe to the suckling stimulus in women who have longer periods of lactational amenorrhoea.en_US
dc.description.affiliationFaculty of Medicine, University of Colombo.en_US
dc.identifier.citationTennekoon KH. Maternal prolactin concentrations and lactational behaviour in the early postpartum period in women with lactational amenorrhoea. The Ceylon Medical Journal. 2001 Mar; 46(1): 6-10en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/47878
dc.language.isoengen_US
dc.source.urihttps://www.infolanka.com/CMJhome/en_US
dc.subject.meshAdulten_US
dc.subject.meshAmenorrhea --blooden_US
dc.subject.meshAnalysis of Varianceen_US
dc.subject.meshBirth Weighten_US
dc.subject.meshBody Mass Indexen_US
dc.subject.meshBreast Feeding --psychologyen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshInfant, Newbornen_US
dc.subject.meshLactation --physiologyen_US
dc.subject.meshMaternal Ageen_US
dc.subject.meshParityen_US
dc.subject.meshPostpartum Period --physiologyen_US
dc.subject.meshProlactin --blooden_US
dc.subject.meshTime Factorsen_US
dc.titleMaternal prolactin concentrations and lactational behaviour in the early postpartum period in women with lactational amenorrhoea.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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