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Optimal range: 10 - 100 Relative Abundance
Oscillospira is a common yet rarely cultivated gut bacterial genus. Recently human gut microbiota studies have demonstrated its underlying significance for host health.
Optimal range: 275 - 295 mOsm/kg
"Osmolality, Calc" or "Calculated Osmolality" on a blood panel refers to the serum osmolality — a measurement of the concentration of dissolved particles (primarily sodium, glucose, and urea/BUN) in the blood. It is called "calculated" because the result is derived from a mathematical formula rather than direct laboratory measurement. Many laboratories use a reference interval of approximately 275–295 mOsm/kg, though ranges vary slightly by laboratory and calculation method. A high osmolality (above 295 mOsm/kg) most commonly indicates dehydration. A low osmolality (below 275 mOsm/kg) most commonly indicates overhydration or low sodium (hyponatremia). Osmolality appears on comprehensive metabolic panels (CMP), basic metabolic panels (BMP), and electrolyte panels under a variety of label formats depending on the laboratory system.
Optimal range: 50 - 1200 mOsm/kg
Osmolality (U), also known as urine osmolality, measures the concentration of dissolved particles, such as electrolytes, urea, and glucose, in urine. It provides insight into how well the kidneys are functioning and maintaining the body's fluid balance. By measuring urine osmolality, doctors can evaluate how the kidneys are responding to different conditions, such as dehydration or excessive fluid intake. This test is usually done by analyzing a urine sample, which helps determine the concentration of particles and offers important information about kidney health and the body's ability to regulate water and electrolytes.
Optimal range: 5.2 - 22.4 ng/mL
Osteocalcin is a protein hormone produced almost exclusively by osteoblasts, the specialized bone-forming cells. It plays a critical role in bone formation, mineralization, and calcium regulation. Osteocalcin is considered one of the most specific markers of bone-building activity and is often used to assess bone metabolism and bone turnover.
After being synthesized by osteoblasts, osteocalcin becomes incorporated into the bone matrix or is released into the bloodstream. Measuring serum osteocalcin helps evaluate the rate at which new bone is being formed — making it a valuable marker in diagnosing and monitoring osteoporosis, metabolic bone diseases, and certain hormonal disorders.
Optimal range: 0.7 - 2 ELISA Index
Function:
A star-shaped cell, an osteocyte is an abundant cell found in compact bone. Cytoplasmic extensions, which occupy canals called canaliculi, network osteocytes. Canaliculi are used by osteocytes for the exchange of nutrients and waste through gap junctions. Osteocytes are actively involved in the routine turnover of bony matrix, through various mechanisms. Through a mechanism called osteocytic osteolysis, osteocytes can destroy bone.
Antibodies Appear:
Osteoclastogenesis [4]
Osteopenia [3]
Osteoporosis [3]
Known Cross-Reactions:
Phosphatase I, [1] gliadin [5]
Clinical Significance:
Reference range: Low Probability of Osteoporosis, Additional Investigation, High Probability of Osteoporosis
LEARN MOREOptimal range: 0 - 0 cfu/ml
LEARN MOREReference range: Not Detected, Detected
LEARN MOREOptimal range: 0 - 1.8 ELISA Index
ANTIBODIES ASSOCIATED WITH:
This test by itself is not diagnostic for any condition or disease
Autoimmune Endocrine Disorders
Autoimmune Polyendocrine Syndrome Type 1
Hypogonadism
Premature Menopause
Premature Ovarian Failure
BODY TISSUE:
Reproductive
Optimal range: 0 - 78 mmol/mol creatinine
Oxalic acid is the metabolic end-product of the glyoxylase pathway and is derived from the oxidation of glyoxylate.
In the cell, the majority of glyoxylate is converted into glycine or glycolic acid. However, in some instances there may be greater oxidation of glyoxylate to oxalic acid. This leads to increased urinary excretion of oxalic acid.
As 80% of kidney stones are calcium-oxalate stones, an increase in oxalic acid is strongly correlated to frequency of urolithiasis.
Optimal range: 0 - 2 mcmol/L
What is Oxalate?
Oxalate (or oxalic acid) is a naturally occurring substance found in many foods and also produced as a waste product in the body. It is not essential for human health and is typically excreted in the urine. In the bloodstream, oxalate levels are usually very low under normal circumstances.
The Oxalate, Serum/Plasma test measures the concentration of oxalate circulating in your blood. This test is primarily used to:
Evaluate primary or secondary hyperoxaluria (a condition of excessive oxalate production or absorption)
Assess risk for calcium oxalate kidney stones
Monitor kidney function in patients with known oxalate-related disorders
Help diagnose oxalate nephropathy, a rare but serious kidney condition
Optimal range: 6.8 - 101 mmol/mol creatinine
Oxalic acid may be associated with dysbiosis from Aspergillus, Penicillium, Candida, or high dose vitamin C. If yeast or fungal markers are elevated, antifungal therapy may reduces oxalates. Also associated with anti-freeze (ethylene glycol) poisoning.
Optimal range: 15 - 174 mmol/mol creatinine
Oxalic acid may be associated with dysbiosis from Aspergillus, Penicillium, Candida, or high dose vitamin C. If yeast or fungal markers are elevated, antifungal therapy may reduces oxalates. Also associated with anti-freeze (ethylene glycol) poisoning.
Optimal range: 8.9 - 67 mmol/mol creatinine
Oxalic acid may be associated with dysbiosis from Aspergillus, Penicillium, Candida, or high dose vitamin C. If yeast or fungal markers are elevated, antifungal therapy may reduces oxalates. Also associated with anti-freeze (ethylene glycol) poisoning.
Optimal range: 35 - 185 mmol/mol creatinine
Oxalic acid may be associated with dysbiosis from Aspergillus, Penicillium, Candida, or high dose vitamin C. If yeast or fungal markers are elevated, antifungal therapy may reduces oxalates. Also associated with anti-freeze (ethylene glycol) poisoning.