Partial link between OPG and bone resorption after delivery. They observed that OCP increases the risk of hip fracture with no association between duration of lactation and risk of hip fracture. It is hypothesized that after discontinuing breast feeding, bone resorption returns to normal while bone formation continues The effects of pregnancy and lactation on bone mineral density. Reproductive history and postmenopausal risk of hip and forearm fracture.
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Duration breast-feeding linked to osteoporosis risk
Epidemiology of hip fractures. In addition there are some reports of negative relationship between duration of lactation and BMD 57 - 59 and some reports of no relationship The RCOG will not be liable for any special or consequential damages arising from the use or reliance on information contained within the query bank. Although hormonal changes cause calcium loss and result in increased bone resorption, bone resorption may be reversed after delivery 13 , The SIGN guideline on the management of osteoporosis notes that: Several investigations into the issue have been conducted by measuring bone biomarkers but bone turnover markers do not show absolute changes in bone turnover however alteration in renal function during pregnancy and lactation as well as involution of the uterus affects bone turnover markers Assessment of postmenopausal women and significant risk factors for osteoporosis.
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The Influence of Pregnancy and Lactation on Maternal Bone Health: A Systematic Review
Main outcome measures Parity, age at first pregnancy and breast-feeding, breast-feeding period for total and average duration per child according to a questionnaire were assessed. This was a new finding. Author Type of study Subjects Conclusion Murphy et al. The effect of calcium supplementation on bone density during lactation and after weaning. So if a lack of vitamin D is not the reason breastfeeding moms' bones are weakening, what is, and what can be done to prevent it? Int J Fertil Womens Med. In the recent decade, quantitative ultrasonometry QUS has been used for determining bone density as a safer method in pregnant women and infants.
Description:Bone mineral changes during and after lactation. Calcium absorption is significantly higher in adolescents during pregnancy than in the early postpartum period. To explore the current state of fact, in the present study, all bibliographic databases were searched and all relevant studies on the topic of osteoporosis, lactation, and pregnancy were reviewed. The relationship between parity and bone mineral density in women characterized by a homogeneous lifestyle and hgh parity. The significant positive association between parity and BMD. Estrogen deficiency during postpartum amenorrhea causes bone loss and a positive association between serum estradiol and postpartum bone mineral density BMD was determined 25 but the importance of estrogen is not fully understood. Accordingly, many regulatory mechanisms such as renal calcium reservation, intestinal absorption, and bone resorption are stimulated