Complement component 4 (C4) is a blood test that measures the activity of a certain protein. This protein is part of the complement system.

Complement C4a levels can be elevated in conditions associated with inflammation, such as autoimmune diseases, infections, and some neurological disorders. It can also be used in the evaluation of certain pregnancy-related conditions.

Complement Component C1Q is a vital element in the field of immunology and diagnostic medicine, playing a crucial role in the assessment of autoimmune and inflammatory disorders. This component forms part of the complement system, a group of proteins that enhance (complement) the ability of antibodies and phagocytic cells to clear pathogens from an organism. C1Q specifically initiates the classical complement pathway, a critical part of the body's innate immune response. Testing for Complement Component C1Q levels is particularly significant in diagnosing conditions such as Systemic Lupus Erythematosus (SLE) and other rheumatic diseases.

A total complement measurement, also known as a total hemolytic complement or a CH50 measurement, checks how well the complement system is functioning.

Complement was discovered by Jules Bordet as a heat-labile component of normal plasma that causes the opsonisation and killing of bacteria. The complement system refers to a series of >20 proteins, circulating in the blood and tissue fluids. Most of the proteins are normally inactive, but in response to the recognition of molecular components of microorganisms they become sequentially activated in an enzyme cascade – the activation of one protein enzymatically cleaves and activates the next protein in the cascade.

A total complement measurement, also known as a total hemolytic complement or a CH50 measurement, checks how well the complement system is functioning.

Complement was discovered by Jules Bordet as a heat-labile component of normal plasma that causes the opsonisation and killing of bacteria. The complement system refers to a series of >20 proteins, circulating in the blood and tissue fluids. Most of the proteins are normally inactive, but in response to the recognition of molecular components of microorganisms they become sequentially activated in an enzyme cascade – the activation of one protein enzymatically cleaves and activates the next protein in the cascade.

Stool normally contains about 75% water and ideally should be formed and soft. Stool consistency can vary based upon transit time and water absorption.

The copeptin test is a helpful tool used by doctors to check on a specific part of our body's hormone system. Copeptin is a piece of a larger hormone called pre-provasopressin, which breaks down into three parts, including vasopressin. Vasopressin is important because it helps control how much water our bodies keep and how much we pee out. It's hard to measure vasopressin directly because it doesn't last long in our blood and is present in tiny amounts. That's where copeptin comes in – it's easier to measure and tells us how much vasopressin our body is making.

Like most trace minerals, copper acts as an enzyme cofactor in several key metabolic processes in the body. Among its many functions, copper aids in the formation of bone, hemoglobin and red blood cells, therefore enabling the efficient transport of oxygen throughout the body. In addition, copper works in balance with vitamin C and zinc to manufacture elastin (skin protein) as well as collagen and other structural proteins in cartilage and tendons. It is also involved in the healing process, energy production, hair and skin coloring (production of melanin) and taste sensitivity. Copper stimulates the absorption of iron through the copper transport protein ceruloplasmin. Copper also aids in the metabolism of several fatty acids and helps prevent oxidative damage by serving as a cofactor to superoxide dismutase. In addition, copper is needed for proper insulation (mylination) of nerve cells and serves as a cofactor for the synthesis of the neurotransmitter norepinephrine.

Sources:

Legumes, mushrooms, chocolate, nuts and seeds, shellfish and liver are high in copper all greater than 2.4 µg per gram.

Food, water and air (via combustion and fossil fuels and agriculture) are sources of copper.

Copper pipes and fixtures in household plumbing may allow copper to leak into water.

Copper is part of enzymes, which are proteins that help biochemical reactions occur in every cell. Copper is involved in the absorption, storage and metabolism of iron.

Hair Copper (Cu) levels are usually indicative of body status, except that exogenous contamination may occur giving a false normal (or false high). Common sources of contamination include: permanent solutions, dyes, bleaches, and swimming pools/hot tubs in which Cu compounds have been used as algaecides.

Cu is an essential element that activates specific enzymes. Erythrocyte superoxide dismutase (SOD) is a Cu (and zinc) dependent enzyme; lysyl oxidase which catalyzes crosslinking of collagen is another Cu dependent enzyme. Adrenal catecholamine synthesis is Cu dependent, because the enzyme dopamine beta-hydroxylase, which catalyzes formation of norepinephrine from dopamine, requires Cu.

If hair Cu is in the normal range, this usually means tissue levels are in the normal range. However, under circumstances of contamination, a real Cu deficit could appear as a (false) normal. If symptoms of Cu deficiency are present, a whole blood or red blood cell elements analysis can be performed for confirmation of Cu status.

Fecal copper (Cu) provides an estimate of very recent exposure to Cu, and to some extent biliary Cu excretion. The biliary / fecal route is the main route of excretion for Cu from the body.

Copper, a trace element, is a crucial component on a Toxic and Essential Elements panel when assessed in whole blood. It plays a vital role in numerous physiological processes, acting as a key cofactor in various enzymatic reactions. Copper is integral in the formation of red blood cells, the maintenance of healthy nerves and bones, and the absorption and utilization of iron. It also contributes to the synthesis of ATP, the body's primary energy currency, and is involved in the formation of connective tissue and the functioning of the immune system.

Sources:

Legumes, mushrooms, chocolate, nuts and seeds, shellfish and liver are high in copper all greater than 2.4 µg per gram.

Food, water and air (via combustion and fossil fuels and agriculture) are sources of copper.

Copper pipes and fixtures in household plumbing may allow copper to leak into water.