Cystatin C is a protein used as a biomarker for assessing kidney function, offering a more reliable measure of glomerular filtration rate (GFR) compared to creatinine, especially in cases where muscle mass may skew results. Its levels in the blood are influenced by factors such as age, sex, and inflammation, making it a valuable tool in diagnosing and monitoring chronic kidney disease.

Cystatin C

biomarker for assessing kidney function

Glomerular Filtration Rate (GFR) is a critical measure of kidney function that quantifies how well the kidneys filter blood, typically expressed in milliliters per minute. It is used to assess kidney health, diagnose kidney disease, and guide treatment decisions, with lower rates indicating impaired kidney function.

glomerular filtration rate

Creatinine is a waste product formed by the normal breakdown of muscle tissue and is primarily filtered out of the blood by the kidneys. Monitoring creatinine levels is crucial for assessing kidney function and diagnosing potential renal disorders.

creatinine

Muscle mass refers to the volume of skeletal muscle in the body, which is crucial for movement, strength, and metabolic health. Maintaining or increasing muscle mass involves a balance of resistance training, adequate protein intake, and recovery, and is important for overall health and aging well.

muscle mass

levels in the blood

Age is a measure of the time a person or object has existed, influencing biological, psychological, and social dimensions of life. It impacts identity, opportunities, and societal roles, and is often used to categorize stages of development and aging processes.

Inflammation is the body's complex biological response to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective attempt to remove the injurious stimuli and initiate the healing process. While acute inflammation is a vital part of the immune response, chronic inflammation can contribute to various diseases, including arthritis, cardiovascular diseases, and certain cancers.

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