Any lifestyle changes or treatment for high blood cholesterol will aim to ensure HDL-C levels are increased or maintained at healthy levels. On the other hand, cholesterol carried by HDLs (HDL-C) is considered “good” because it carries cholesterol away from the arteries and back to the liver, where it is broken down and passed from the body. If you have high blood cholesterol your goal will be to reduce LDL-C levels in your blood. In simple terms, cholesterol carried by LDLs (LDL-C) is considered “bad” because when there is too much of it circulating in your blood it contributes to plaque build-up that clogs arteries and makes them less flexible (i.e., atherosclerosis). There is only one kind of cholesterol, but it is carried around the body by different carriers called lipoproteins, notably: High blood cholesterol levels are known medically as hypercholesterolaemia or hyperlipidaemia. Medical conditions such as diabetes, kidney disease, and underactive thyroid (hypothyroidism).Genetic susceptibility to high cholesterol.Other factors that may influence your blood cholesterol levels include: A diet high in saturated fat stimulates the liver to produce more cholesterol hence, the saturated fat content of the food you eat is likely to have a strong influence on your blood cholesterol levels.Ī small proportion of your blood cholesterol is derived from dietary cholesterol, which is cholesterol that is already present in animal foods you might consume (mainly in dairy products, meat, egg yolks, offal, and shellfish). Your liver produces most of the cholesterol circulating in your blood. This risk of a cardiovascular health event increases when high blood cholesterol is accompanied by other risk factors such as high blood pressure and a family history of heart disease. More than half of New Zealanders admitted to hospital with a heart attack have high cholesterol levels. This process is known as atherosclerosis and increases the risk of heart attack, stroke and other cardiovascular diseases. However, when there is more cholesterol circulating in the blood than the body needs, it can build up on the inside surface of your artery walls (cholesterol plaque), eventually leading to narrowing and hardening of the arteries. It is essential for your good health as it helps to build cell walls and is used in the manufacture of certain hormones. General information and causesĬholesterol is a white, waxy substance that is circulated in the blood. In some cases, people with persistent high blood cholesterol may be treated with cholesterol-lowering medication. The condition does not have any obvious symptoms, so blood tests are required to confirm if a person has high blood cholesterol.Ĭhanges to diet, regular exercise, and other lifestyle changes can reduce cholesterol levels. Too much of it increases your risk of heart disease and stroke. These changes may be due to the change in metabolism of the pregnant women as well as diet during and after pregnancy.Cholesterol is a type of fat that circulates in your blood. After delivery, though lipid levels had decreased, the decrease in HDL cholesterol and increase in LDL cholesterol caused unfavourable changes in lipid-lipoprotein ratios. These results may suggest that while total lipid levels increase during pregnancy, this is balanced by an even distribution of the lipoprotein fractions. Compared to the later, the atherogenic index, LDL/HDL cholesterol ratio was unchanged during pregnancy but significantly increased at 6/52 postnatally. Except for LDL cholesterols which remained constant, all the above decreased at 6/52 postnatally, but levels were still above those of normal non-pregnant women. Triglycerides, total, HDL and LDL cholesterols were high during pregnancy. Lipid profiles were estimated in two groups of normal healthy women comprising 39 non-pregnant women and 67 pregnant women at 28 and 32 weeks gestation and 6 weeks after delivery.
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