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Lumbar bone mineral density in anorexia nervosa
J L Poet1, A Galinier Pujol, I Tonolli Serabian
1Department of Rheumatology, Hôpital de la Conception, Marseille, France.
Clinical Rheumatology
|June 1, 1993
Summary
Women with anorexia nervosa have significantly lower bone density. Long-term amenorrhea, indicating estrogen deficiency, is linked to this osteoporosis risk.
Area of Science:
- Endocrinology
- Osteoporosis Research
- Nutritional Science
Background:
- Anorexia nervosa (AN) is associated with various health complications, including bone density loss.
- Osteoporosis (OP) is a significant concern in women with AN, potentially leading to fractures.
Purpose of the Study:
- To investigate lumbar bone mineral density (BMD) in women with AN.
- To compare BMD in AN patients with a healthy control group.
- To explore correlations between BMD and factors such as amenorrhea duration, estradiol levels, and nutritional status.
Main Methods:
- Dual photon absorptiometry was used to measure lumbar bone mineral density (BMD).
- A cohort of 18 women diagnosed with anorexia nervosa was studied.
- BMD results were compared to a control group of 36 healthy women.
Main Results:
- Women with AN exhibited significantly reduced mean lumbar BMD compared to controls (0.814 +/- 0.072 g/cm2 vs 1.011 +/- 0.023; p < 0.01).
- BMD showed a significant negative correlation with the duration of amenorrhea (r = -0.68; p < 0.01).
- No significant correlations were found between BMD and estradiol levels, age of onset, BMI, or daily calorie intake.
Conclusions:
- Long-standing estrogen deficiency, suggested by prolonged amenorrhea, appears to be a key factor in osteoporosis development in anorexia nervosa.
- Reduced bone mineral density is a prevalent issue in women with AN, underscoring the need for bone health monitoring.