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Apolipoprotein B is the primary apolipoprotein of chylomicrons, VLDL, Lp(a), IDL, and LDL particles (LDL—commonly known as "bad cholesterol" when in reference to both heart disease and vascular disease in general), which is responsible for carrying fat molecules (), including cholesterol, around the body to all cells within all tissues.
Apo(a) is a component of lipoprotein(a) (Lp(a)) and elevated plasma Lp(a) level is a heritable, independent, and possibly causal risk factor for Atherosclerotic Cardiovascular Disease (ASCVD). [21] The cholesterol-rich apoB-containing lipoproteins also participate in the pathogenesis of ASCVD.
4018 n/a Ensembl ENSG00000198670 n/a UniProt P08519 n/a RefSeq (mRNA) NM_005577 n/a RefSeq (protein) n/a n/a Location (UCSC) Chr 6: 160.53 – 160.66 Mb n/a PubMed search n/a Wikidata View/Edit Human Lipoprotein(a) is a low-density lipoprotein variant containing a protein called apolipoprotein(a). Genetic and epidemiological studies have identified lipoprotein(a) as a risk factor for ...
Food intake prior to testing may cause elevated levels, up to 20%. Normal level is defined as less than 150 mg/dL. [46] Borderline high is defined as 150 to 199 mg/dL. [46] High level is between 200 and 499 mg/dL. [46] Greater than 500 mg/dL is defined as very high, [46] and is associated with pancreatitis and requires medical treatment. [47]
High cholesterol levels normally do not cause any symptoms. Yellow deposits of cholesterol-rich fat may be seen in various places on the body such as around the eyelids (known as xanthelasma palpebrarum), the outer margin of the iris (known as arcus senilis corneae), and in the tendons of the hands, elbows, knees and feet, particularly the Achilles tendon (known as a tendon xanthoma).
Hypobetalipoproteinemia is a disorder consisting of low levels of LDL cholesterol or apolipoprotein B, [1] below the 5th percentile. [2] The patient can have hypobetalipoproteinemia and simultaneously have high levels of HDL cholesterol.
As a result, this can be clinically diagnosed when foul-smelling stool is encountered. Low levels of plasma chylomicron are also characteristic. [citation needed] There is an absence of apolipoprotein B. On intestinal biopsy, vacuoles containing lipids are seen in enterocytes. This disorder may also result in fat accumulation in the liver ...
Hypolipoproteinemia, hypolipidemia, or hypolipidaemia (British English) is a form of dyslipidemia that is defined by abnormally lowered levels of any or all lipids and/or lipoproteins in the blood. It occurs in genetic disorders (e.g. hypoalphalipoproteinemia , hypobetalipoproteinemia ), malnutrition , malabsorption , wasting disease , cancer ...