A case of anorexia nervosa with severe hyperlipoproteinemia.
OBJECTIVE: The complication of severe hyperlipoproteinemia with anorexia nervosa is very rare. We investigated the mechanisms of severe hyperlipoproteinemia in a patient with anorexia nervosa. METHODS: The measurement of plasma levels of lipids, apolipoproteins (Apo), lipoprotein subfractions, free T3, and estrogen, apo (lipoprotein) E phenotyping, and the assay of lymphocyte low-density lipoprotein (LDL)-receptor activity were accomplished in a 40-year-old female patient with anorexia nervosa. RESULTS: Her body mass index was 10.3 kg/m2. Her plasma levels of total cholesterol ( C), triglyceride (TG), apoB, apoE, very-low-density lipoprotein (VLDL)-C, and intermediate-density lipoprotein (IDL)-C were 757 mg/dl, 526 mg/dl, 288 mg/dl, 13.6 mg/dl, 133 mg/dl, and 99 mg/dl, respectively. VLDL was cholesterol rich ( C/TG ratio = 0.68; normal value = 0.2). The plasma LDL was high and skewed to less dense fractions. Her apoE phenotype was E 3/2. Her lymphocyte LDL-receptor activity was 79% of normal subjects. The plasma level of estradiol was low and that of free T3 was subnormal. DISCUSSION: We concluded that the plasma lipoprotein abnormality of this anorexia nervosa patient was induced by the impaired removal of TG-rich lipoprotein remnants and less dense LDL due to apoE phenotype E 3/2, subnormal LDL-receptor activity, subnormal plasma level of free T3, and diminished secretion of estrogen.[1]References
- A case of anorexia nervosa with severe hyperlipoproteinemia. Homma, Y., Homma, K., Iizuka, S., Iigaya, K. The International journal of eating disorders. (2002) [Pubmed]
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