The "CAR (Cortisol Awakening Response) Rise Response" is a physiological phenomenon observed in the hypothalamic-pituitary-adrenal (HPA) axis, reflecting the body's reaction to stress and its regulatory mechanisms of stress hormones, primarily cortisol. Upon awakening, a marked increase in cortisol levels is typically observed, peaking within the first 30 to 45 minutes after waking. This response is thought to be an adaptive mechanism that prepares the body for the anticipated demands of the day, enhancing alertness and mobilizing energy resources. The magnitude and pattern of the CAR can be influenced by various factors, including sleep quality, psychosocial stressors, and underlying health conditions. Scientific studies have utilized the CAR as a biomarker for assessing HPA axis function and its dysregulation in stress-related disorders, such as chronic fatigue syndrome, depression, and post-traumatic stress disorder (PTSD). Furthermore, the CAR has been investigated for its predictive value in health outcomes, including cardiovascular disease and metabolic syndrome, underlining its significance as a critical indicator of physiological stress responses and overall health status. The quantification and analysis of the CAR involve precise measurement of salivary cortisol levels at specific intervals upon waking, requiring standardized collection protocols to ensure accuracy and reliability of the data.
should not be appreciably present in the colon
CO2 (bicarbonate) blood test
useful in judging the extent of carbon monoxide toxicity and in considering the effect of smoking
present in animal models for Sjogren's syndrome (SS) and patients with the disease.
present in animal models for Sjogren's syndrome (SS) and patients with the disease.
present in animal models for Sjogren's syndrome (SS) and patients with the disease.
A metabolites of yeast/fungi and general indicator of gastrointestinal dysbiosis
A metabolites of yeast/fungi and general indicator of gastrointestinal dysbiosis
Carboxycitric acid, an analogue of the Krebs/citric acid cycle, serves as a marker for intestinal microbial overgrowth, particularly involving yeast and fungi. As a byproduct of the Krebs cycle, elevated levels may also point to energy metabolism disorders. Research has shown that children with autism tend to have lower levels of 3-oxoglutaric acid, which is thought to result from increased uptake of these compounds across the blood-brain barrier. Urinary levels of carboxycitric acid have been observed to decrease following nystatin therapy. To identify the root cause, consider testing with a Gut Zoomer, fungal antibodies, or a mycotoxin panel. Implementing multi-strain probiotics and comprehensive gastrointestinal support can help improve this condition.
Carboxyhemoglobin is a form of hemoglobin that develops when carbon monoxide (CO) binds to red blood cells. Carbon monoxide has a much stronger affinity for hemoglobin than oxygen does—over 200 times stronger—so even modest exposure can reduce the body’s ability to carry oxygen. This test measures the percentage of total hemoglobin bound to carbon monoxide and is used to evaluate oxygen-carrying capacity, detect carbon monoxide exposure, and assess smoking status or environmental/occupational risks. A carboxyhemoglobin level above 2% but below 5% is typically seen in individuals who are exposed to low levels of carbon monoxide, most commonly light or moderate smokers or people who are regularly around secondhand smoke or mild environmental CO sources. While this range is above the normal nonsmoker reference (<2%), it is not generally considered dangerous on its own. However, it does indicate that the body’s oxygen-carrying capacity is slightly reduced, which may contribute to symptoms like mild headaches, fatigue, or decreased exercise tolerance in sensitive individuals. For those who do not smoke, a result in this range may prompt evaluation for hidden carbon monoxide exposure, such as from poor indoor ventilation, gas appliances, garage exhaust, or occupational settings. Reducing environmental CO exposure, improving ventilation, and avoiding smoke can help bring levels back into the nonsmoker range.
Cancer monitoring tumor marker
produced by immune system against platelet membrane phospholipids
Measures serum IgG antibodies to cardiolipin for APS evaluation.
IgM antibodies targeting cardiolipin phospholipids; marker for APS.
Deficiency Symptoms: Deficiencies of carnitine may result from: 1) deficiencies of essential amino acids lysine and methionine, 2) deficiencies of cofactors (B3, C, B6 and iron), 3) defective gastrointestinal function, 4) increased requirement because of high-fat diet, metabolic stress or disease. The consequences of carnitine deficiency are impaired lipid metabolism and lipid accumulation in skeletal muscles, heart, and liver. Patients usually exhibit muscle weakness and fatigue. Normal heart function depends on adequate concentrations of carnitine. While the normal heart stores more carnitine than required, if the heart does not have a good oxygen supply, carnitine levels quickly decrease. This lack of oxygen leads to decreased energy production and increased risk for angina and heart disease. Carnitine benefits blood lipids by lowering triglycerides and total cholesterol, while increasing HDL. L-acetylcarnitine (LAC) may be useful in the treatment of Altzheimer’s disease, senile depression and age- related memory loss.