INTRODUCTION Involution of lactation is a physiological process. Rarely, it may be delayed and troublesome for the lactating woman. Though lactation-induced changes in breast are well known, morphological features of delayed involution are not clear. CASE PRESENTATION We report a case of a 22-year-old lactating mother who presented with a painful, non-resolving breast mass 5 months after deli...

Prompted by declines in average durations and proportions of women breast feeding in several developing countries, international organizations have placed breast feeding promotion high on their health policy agendas. Breast feeding can prolong the length of the birth interval directly through its ability to cause lactational amenorrhea and anovulation. Maintenance of lactational amenorrhea de...

The distribution and intensity of delta 5-3 beta-hydroxysteroid dehydrogenase (3 beta-HSD) activity was examined histochemically in ovaries from Mongolian gerbils during pregnancy and undergoing lactational delay. In all of the ovaries examined the corpora lutea showed the strongest level of activity, but like the interstitium and granulosa, there was no relationship between the enzyme pattern ...

Gilts were assigned as controls (CTL, n = 6) or received orally 10 mg of bromocriptine thrice daily from d 110 of gestation until farrowing, (BRPP, n = 7), from d 1 to 6 postpartum (PP) (BRL1, n = 6), from d 7 to 13 PP (BRL2, n = 7), from d 14 to 20 PP (BRL3, n = 6), or from d 21 to 27 PP (BRL4, n = 6). Weights of pigs were recorded at birth, 24 h later, and on d 7, 14, 21, 28, 31 (weaning), 42...

Urokinase-type plasminogen activator expression is induced in the mouse mammary gland during development and post-lactational involution. We now show that primiparous plasminogen-deficient (Plg(-/-)) mice have seriously compromised mammary gland development and involution. All mammary glands were underdeveloped and one-quarter of the mice failed to lactate. Although the glands from lactating Pl...

2. Maximal lactational response in different experiments depended upon wha t Mg source was supplemented and the milk production level (stage of lactation) of cows . For midlactation cows supplemented with feed grad e magnesium phosphate, .48% total dietary Mg resulted in greatest milk yield . When midlactation cows were provided additional dietary Mg as Mg O maximal lactational response was obt...

Pregnancy-like (pseudolactational) hyperplasia (PLH) is an uncommon lactational change occurring independently from pregnancy and lactation. PLH has been incidentally found during breast biopsies. We report two different cases of PLH with their clinical, radiologic, and pathologic findings.

A laboratory test to differentiate the apparent availability of Mg among supplemental sources would be useful. Evaluation directly with cattle to test the reactivity, solublization (dissolution), and apparent absorption of Mg from various Mg sources in the rumen is tedious, laborious, and expensive. The degree of reactivity in the rumen and release of soluble Mg in the primary absorption site (...