High LDL causes

	Low Density Lipoprotein Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Rim Halaby, M.D. [3]; Vendhan Ramanujam M.B.B.S [4]

Overview

High LDL may be caused by inherited diseases that affect the lipid metabolism or can be secondary to some medical conditions or medications.

Causes

Life Threatening Causes

Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.

Low LDL does not have any life-threatening cause.

Common Causes

Causes by Organ System

Cardiovascular	No underlying causes
Chemical/Poisoning	Diterpenoids
Dental	No underlying causes
Dermatologic	No underlying causes
Drug Side Effect	Atazanavir, azathioprine, bexarotene, calcineurin inhibitors, chlortalidone, corticosteroids, cyclosporine, desvenlafaxine, fish oil supplements, immunosuppressive agents, levonorgestrel, lopinavir, mycophenolate, nicotine, norgestrel, prednisone, progestin, rapamycin, rosiglitazone, sirolimus, thiazide, tocilizumab
Ear Nose Throat	No underlying causes
Endocrine	Androgens, dehydroepiandrosterone, growth hormone deficiency, hypercortisolism, hypothyroidism, polycystic ovarian syndrome, progestagens, subclinical hypothyroidism, testosterone
Environmental	No underlying causes
Gastroenterologic	No underlying causes
Genetic	Acid sphingomyelinase deficiency, autosomal recessive hypercholesterolemia, familial combined hyperlipidemia, familial defective apolipoprotein B-100, familial hypercholesterolemia, IL 28B polymorphisms, Niemann-Pick disease, polygenic hypercholesterolemia
Hematologic	No underlying causes
Iatrogenic	No underlying causes
Infectious Disease	Gram negative bacteremia, H. pylori, small bowel bacterial overgrowth syndrome
Musculoskeletal/Orthopedic	No underlying causes
Neurologic	No underlying causes
Nutritional/Metabolic	Chenodeoxycholic acid, high carbohydrate diet, high saturated fat diet, omega-3 polyunsaturated fatty acids, polygenic hypercholesterolemia, primary hyperlipoproteinemia, primary hypolipoproteinemia, selenium deficiency
Obstetric/Gynecologic	Polycystic ovarian syndrome
Oncologic	No underlying causes
Ophthalmologic	No underlying causes
Overdose/Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	No underlying causes
Renal/Electrolyte	Chronic kidney disease, nephrotic syndrome
Rheumatology/Immunology/Allergy	Dysproteinemia, lipopolysaccharides, monoclonal gammopathy, paraproteinemia
Sexual	No underlying causes
Trauma	No underlying causes
Urologic	No underlying causes
Miscellaneous	No underlying causes

Causes in Alphabetical Order

References

↑ ^1.0 ^1.1 Durrington, P. (2003). "Dyslipidaemia". Lancet. 362 (9385): 717–31. doi:10.1016/S0140-6736(03)14234-1. PMID 12957096. Unknown parameter |month= ignored (help)
↑ ^2.0 ^2.1 Covington, MB. (2004). "Omega-3 fatty acids". Am Fam Physician. 70 (1): 133–40. PMID 15259529. Unknown parameter |month= ignored (help)
↑ Pejic, RN.; Lee, DT. "Hypertriglyceridemia". J Am Board Fam Med. 19 (3): 310–6. PMID 16672684.
↑ Kronenberg, F. (2005). "Dyslipidemia and nephrotic syndrome: recent advances". J Ren Nutr. 15 (2): 195–203. PMID 15827892. Unknown parameter |month= ignored (help)

Template:WikiDoc Sources

[Durrington-2003-1] 1.0 ^1.1 Durrington, P. (2003). "Dyslipidaemia". Lancet. 362 (9385): 717–31. doi:10.1016/S0140-6736(03)14234-1. PMID 12957096. Unknown parameter |month= ignored (help)

[Covington-2004-2] 2.0 ^2.1 Covington, MB. (2004). "Omega-3 fatty acids". Am Fam Physician. 70 (1): 133–40. PMID 15259529. Unknown parameter |month= ignored (help)

[Pejic--3] Pejic, RN.; Lee, DT. "Hypertriglyceridemia". J Am Board Fam Med. 19 (3): 310–6. PMID 16672684.

[Kronenberg-2005-4] Kronenberg, F. (2005). "Dyslipidemia and nephrotic syndrome: recent advances". J Ren Nutr. 15 (2): 195–203. PMID 15827892. Unknown parameter |month= ignored (help)

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v t e Lipopedia
Basic Science	Cholesterol • Triglyceride Lipoprotein metabolism and transport Lipoprotein: Chylomicron • Chylomicron remnant • HDL • IDL • LDL • Lipoprotein(a) • VLDL • Lipoprotein-X Apolipoprotein: APOA (1, 2, 4, 5) • APOB ( Apolipoprotein B-48, Apolipoprotein B-100) • APOC (1, 2, 3, 4) • APOD • APOE • APOH • APOJ • APOL • APOM • Apo(a) Lipoprotein receptor: LDL receptor • Soluble low density lipoprotein receptor-related protein (sLRP) • Apolipoprotein E Receptor 2 • Scavenger receptor • Scavenger receptor A • Scavenger receptor B • VLDL receptor Lipoprotein enzymes: Lipoprotein lipase • Lipoprotein-associated phospholipase A2 (Lp-PLA2) • Cholesterylester transfer protein ( Acetyl-CoA C-acyltransferase, Lecithin-cholesterol acyltransferase) • Microsomal triglyceride transfer protein • ABCA1 Genes: Low density lipoprotein receptor gene family • Microsomal triglyceride transfer protein • ABCA1
Lipoprotein Disorders	Lipoprotein disorders Primary lipoprotein disorders: Familial hyperchylomicronemia (Type I) • Familial hypercholesterolemia (Type IIA) • Familial combined hyperlipidemia (Type IIB) • Dysbetalipoproteinemia (Type III) • Primary hypertriglyceridemia (Type IV) • Mixed hyperlipoproteinemia (Type V) Secondary lipoprotein disorders
Abnormal Laboratory Lipid Profile	Low chylomicron • Low chylomicron remnant • Low HDL • Low IDL • Low LDL • Low lipoprotein(a) • Low VLDL High chylomicron • High chylomicron remnant • High HDL • High IDL • High LDL • High Lipoprotein(a) • High VLDL