Explore 10,000+ laboratory markers, in plain English.

associated with inflammation

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. In SLE, low levels of C1Q can be indicative of active disease and are often associated with lupus nephritis, a serious kidney complication. The test for C1Q is also useful in identifying C1Q deficiency, a rare genetic condition that significantly increases the risk of developing SLE. Furthermore, monitoring C1Q levels can assist in the management of immune-complex-mediated conditions, where the activation of the complement system plays a pathogenic role. The assessment of Complement Component C1Q underscores the importance of detailed immunological evaluations in providing accurate diagnoses and effective management plans for patients with autoimmune disorders.

Serum immune test measuring total complement system activity level.

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. The complement system plays a critical role in inflammation and defence against some bacterial infections. Complement may also be activated during reactions against incompatible blood transfusions, and during the damaging immune responses that accompany autoimmune disease. Deficiencies of individual complement components or inhibitors of the system can lead to a variety of diseases, which gives some indication of their role in protection against disease. The Complement Total, or CH50 Blood Test, assesses the overall activity of the complement system, and mainly evaluates the classic complement activation pathway. A CH50 Blood Test is often ordered to evaluate complement component deficiency and evaluate complement activity in cases of immune complex disease, glomerulonephritis (inflammation of the kidneys filters), rheumatoid arthritis and cryoglobulinemia (abnormal proteins in the blood that thicken in cold temperatures). It can also be used to evaluate a persons response to systemic lupus erythematosus (SLE) therapy and predict disease flares. This test is usually ordered for people with a family history of complement deficiency and those who have symptoms of: - RA - kidney disease - lupus, which is a multisystem autoimmune disease - myasthenia gravis - an infectious disease, such as meningitis - cryoglobulinemia, which is the presence of abnormal proteins in the blood

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

Measures vasopressin activity, useful for diagnosing various health conditions.

Copper is part of enzymes, which are proteins that help biochemical reactions occur in every cell.

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.

Deficiency Symptoms: Due to copper’s role in the formation of collagen, copper deficiency can manifest as osteoporosis. Other possible signs of deficiency include anemia (due to its role in hemoglobin formation), baldness, diarrhea, general weakness, impaired respiratory function, myelopathy, decreased skin pigment, reduced resistance to infection and increased triglyceride levels. Evidence also links copper deficiency with increased oxidative damage to cell membranes.

an essential element

Toxic metals

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. However, the balance of copper in the body is delicate; both deficiency and excess can lead to significant health issues. Deficiency might lead to anemia, osteoporosis, and neurological problems, while an excess, often due to genetic disorders like Wilson's disease or overexposure, can cause toxic effects, including liver and kidney damage, and neurological disturbances. Monitoring copper levels in whole blood is thus critical for diagnosing and managing these conditions. The assessment of copper in whole blood provides a more comprehensive understanding than serum copper levels alone, as it reflects both the free and protein-bound forms of copper. Management of abnormal copper levels depends on the underlying cause and may include dietary adjustments, supplementation, or chelation therapy in cases of toxicity. This makes the measurement of copper in whole blood an essential aspect of a Toxic and Essential Elements panel, offering valuable insights into a person's metabolic and nutritional status.

directly or indirectly affects virtually every bodily system function

an essential element

Copper is an essential trace element involved in antioxidant defense, immune response, nerve cell development, and iron metabolism. It also serves as a cofactor for numerous vital enzymes and proteins. The human body contains approximately 100 mg of copper, with the highest concentrations found in the brain and liver. Copper is primarily absorbed in the stomach and small intestine, where higher pH levels help release it from dietary macromolecules. Once absorbed, copper is transported in the blood by albumin and transcuperin to the liver, where it binds to ceruloplasmin, a copper-carrying protein. Ceruloplasmin production is stimulated by adrenal hormones, so dysfunction in the liver or adrenal glands can disrupt copper balance, potentially leading to copper buildup in tissues. Under normal conditions, the body maintains copper homeostasis through biliary excretion, preventing toxicity. The Recommended Dietary Allowance (RDA) for copper is: 0.9 mg/day for both men and women Some researchers suggest that an optimal intake may be closer to 2.3 mg/day. Common dietary sources of copper include animal products, legumes, grains, and vegetables. Additional exposure may come from copper plumbing, cookware, drinking water, birth control pills, fungicides, and supplements. Drinking water alone contributes about 6–13% of daily copper intake. Most diets provide 1–5 mg/day, which is generally sufficient to meet basic nutritional needs and prevent deficiency.