Tag: ‘bloodstream’

Malaria

Malaria

Malaria is a parasitic disease that is transmitted from human to human by the bite of infected Anopheles mosquitoes. In humans, the parasites (called sporozoites) migrate to the liver where they mature and become merozoites, which enter the bloodstream and infect red blood cells.

The parasites multiply within red corpuscles, after 48 to 72 hours, break and infect more red blood cells. The first symptoms usually occur 10 days to 4 weeks after infection, although they may appear as early as 8 days or up to 1 year thereafter. Then, symptoms of the disease occur in cycles of 48 to 72 hours.

Most symptoms are caused by the massive release of merozoites into the bloodstream, the anemia resulting from destruction of red blood cells and the problems caused by large amounts of free hemoglobin released into the circulation after the breakdown of red blood cells .

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Insulin as a Regulator of Blood Sugar Levels

Diabetes is a disease that affects how the body uses glucose, the main form of blood sugar. Glucose comes from food we eat and is the largest source of energy needed to stimulate the body’s functions. After eating a meal, your body and crushes the food into glucose and other nutrients that are absorbed into the bloodstream from the gastrointestinal tract. The level of blood glucose rises after a meal and operates the pancreas which produces insulin, the hormone released into the bloodstream. But in people with diabetes, the body is unable to produce or respond properly to insulin. Insulin works like a key that opens the doors of the cells and allows entry of glucose. Without insulin, glucose can not reach the cells (the doors are “locked” and there is no key) so that it stays in the bloodstream. As a result, the level of sugar in the blood reaches higher levels than normal. High levels of sugar are a problem because they can cause several health problems.

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