Liquefaction time in a semen analysis is a crucial parameter that indicates the time it takes for semen to transition from a gel-like consistency to a liquid state. It is essential for sperm mobility and is used as a diagnostic indicator to assess sperm health and potential fertility issues.

Lithium, when detected on a Profile 1, Trace Elements (Hair) test panel, plays a critical role in understanding one's exposure to this element and its potential impact on health. Primarily known for its use in psychiatric medication, particularly for bipolar disorder, lithium in trace amounts is naturally present in water and soil, and consequently in the human body. This test, which analyzes hair samples, offers a unique window into the body's long-term accumulation of lithium. Unlike blood tests that reflect recent exposure, hair analysis can reveal exposure over weeks to months. Lithium levels in hair can indicate either dietary intake or environmental exposure.

Lithium (Li) is normally found in hair at very low levels. Hair Li correlates with high dosage of Li carbonate in patients treated for Affective Disorders. However, the clinical significance of low hair Li levels is not certain at this time. Thus, hair Li is measured primarily for research purposes. Anecdotally, clinical feedback to DDI consultants suggests that low level Li supplementation may have some beneficial effects in patients with behavioral/emotional disorders. Li occurs almost universally in water and in the diet; excess Li is rapidly excreted in urine.

Lithium is a mood stabilizer that can be helpful with bipolar disorder and other conditions but is well known for causing side effects and toxicity. That said, properly monitored, lithium can be safe as well as effective in controlling moods.

This test measures the amount of lithium in the blood.

Lithium is used to treat manic-depressive disorders and the manic phase of affective disorders, including mania. The therapeutic window is relatively small. Therapeutic drug monitoring is useful to optimize dose and avoid toxicity.

Lithium is a naturally occurring element that is also one of the principal drugs used as a mood stabilizer and antipsychotic in people suffering from bipolar mood disorder. While this drug is very effective in treating this condition, it has a very narrow therapeutic range, which means that the level of lithium in the blood needs to be controlled in a range which is effective. Too much lithium can results in lithium toxicity, and too little lithium is be subtherapeutic.

Lithium, a chemical element represented by the symbol Li, is both a therapeutic agent and a potential toxicant, prominently featured in Toxic and Essential Elements panels for whole blood testing. Medically, lithium is primarily used in the treatment of bipolar disorder, effectively stabilizing mood and reducing the extremes of mania and depression. In such therapeutic use, monitoring lithium levels in whole blood is crucial, as the therapeutic range is relatively narrow and closely borders on toxicity. Symptoms of lithium toxicity include nausea, tremors, confusion, and in severe cases, renal impairment and neurotoxicity. In a Toxic and Essential Elements panel, the concentration of lithium in the blood is measured to ensure it remains within a safe and effective range for patients undergoing lithium therapy.

Lithium (Li) is normally found in hair at very low levels. Hair Li correlates with high dosage of Li carbonate in patients treated for Affective Disorders. However, the clinical significance of low hair Li levels is not certain at this time. Thus, hair Li is measured primarily for research purposes. Anecdotally, clinical feedback to DDI consultants suggests that low level Li supplementation may have some beneficial effects in patients with behavioral/emotional disorders. Li occurs almost universally in water and in the diet; excess Li is rapidly excreted in urine.

Lithocholic acid (LCA) is a bile acid formed from chenodeoxycholate by bacterial action, usually conjugated with glycine or taurine. It acts as a detergent to solubilize fats for absorption and is itself absorbed.

The Liver Fraction on Labcorp's Alkaline Phosphatase (ALP) Isoenzyme Panel refers to the specific portion of alkaline phosphatase that originates from the liver. This isoenzyme is measured to help assess liver function and diagnose liver-related disorders. Elevated levels of the liver fraction may indicate conditions such as liver disease, bile duct obstruction, or cholestasis. The ALP isoenzyme panel uses electrophoresis or other specialized techniques to differentiate between the liver, bone, and intestinal isoenzymes of alkaline phosphatase, providing critical insight into the source of elevated ALP levels. By accurately identifying the liver fraction, healthcare providers can better understand the underlying cause of liver dysfunction and determine appropriate treatment strategies.

Liver-Kidney Microsome IgG antibody (anti-LKM), as detected by indirect immunofluorescent antibody (IFA) techniques, may be observed in patients with autoimmune hepatitis type 2 (AIH-2), AIH-2 associated with autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED), viral hepatitis C or D, and some forms of drug-induced hepatitis. This IFA does not differentiate among the four types of LKM antibodies (LKM-1, LKM-2, LKM-3, and a fourth type that recognizes CYP1A2 and CYP2A6 antigens). Of these, anti-LKM-1 (cytochrome P450IID6) IgG antibodies are considered specific for AIH-2.

These antibodies target a human body’s produced enzyme called cytochrome P450 2D6, a protein found primarily in liver cells which catalyze many reactions involved in drug metabolism. The development of the LKM antibodies is strongly associated with type 2 autoimmune hepatitis.

Liver Kidney Microsomal (LKM-1) Antibody (IgG)

The presence of LKM-1 antibodies can be used in conjunction with clinical findings and other laboratory tests to aid in the diagnosis of autoimmune liver diseases such as autoimmune hepatitis (AIH-2).

Glutenin is a major protein found in wheat and constitutes about 47% of its protein content. Glutenin is responsible for the strength and elasticity of dough. The main types of glutenin are the LMW (low molecular weight) and the HMW (high molecular weight) glutenin.

HMW glutenin has been associated with Celiac disease, asthma and Atopic dermatitis.

LMW Glutenin has been associated with Celiac disease, asthma, Atopic dermatitis, Urticaria and Anaphylaxis.

Locust bean gum, also known as carob bean gum, comes from the carob seeds of the carob tree, grown in the Mediterranean. It is a hydrocolloid used in food as a thickener, stabilizer and emulsifier.

Locust bean gum is used as a stabilizer, thickener, and fat replacer in foods, and also as an adjunct gelling agent and texturizer to other hydrocolloids such as carrageenan.