albumin

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albumin

(ălbyo͞o`mən) [Lat.,=white of egg], member of a class of water-soluble, heat-coagulating proteinsprotein,
any of the group of highly complex organic compounds found in all living cells and comprising the most abundant class of all biological molecules. Protein comprises approximately 50% of cellular dry weight.
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. Albumins are widely distributed in plant and animal tissues, e.g., ovalbumin of egg, myogen of muscle, serum albumin of blood, lactalbumin of milk, legumelin of peas, and leucosin of wheat. Separation of serum albumins from other blood proteins can be carried out by electrophoresis or by fractional precipitation with various salts. Albumins normally constitute about 55% of the plasma proteins. They adhere chemically to various substances in the blood, e.g., amino acids, and thus play a role in their transport. Albumins and other proteins of the blood aid significantly in regulating the distribution of water and maintenance of proper osmotic pressure in the body. Albumins are also used in textile printing, in the fixation of dyes, in sugar refining, and in other important processes.

Albumin

A type of globular protein that is characterized by its solubility in water and in 50% saturated aqueous ammonium sulfate. Albumins are present in mammalian tissues, bacteria, molds, and plants, and in some foods. Serum albumin, which contains 584 amino acid residues, is the most abundant protein in human serum, and it performs two very important physiological functions. It is responsible for about 80% of the total osmotic regulation in blood, and it transports fatty acids from adipose tissue to muscle. When excessive amounts of albumin are found in the urine upon clinical examination, some form of kidney disease is usually indicated. Another important albumin, ovalbumin, is found in egg white. This protein is about two-thirds the size of serum albumin, and it contains sugar residues in addition to amino acid residues (that is, it is a glycoprotein). See Protein

albumin

[‚al′byü·mən]
(biochemistry)
Any of a group of plant and animal proteins which are soluble in water, dilute salt solutions, and 50% saturated ammonium sulfate.

albumin

, albumen
any of a group of simple water-soluble proteins that are coagulated by heat and are found in blood plasma, egg white, etc.
References in periodicals archive ?
Prevalence of abnormal urinary albumin excretion rate in hypertensive patients with impaired fasting glucose and its association with cardiovascular disease.
(a) Scatter plot showing the 24 h urinary albumin excretion rate (UAER) on days 2-3, 6-7,16-17, and 36-37.
Giomi, "Relation between urinary albumin excretion and skin involvement in patients with psoriasis," Dermatology, vol.
In addition, urinary albumin excretion causes tubular lesions through activation of the HSP70-TLR4 axis in DN [25].
The above data indicate that podocyte is involved in the kidney injury associated with hyperuricemia, resulting in increased urinary albumin excretion.
Irgine et al (1986)-studied 54 subjects at 24-41 weeks by immunoelectrophoretic methods and concluded that predictive value of urinary albumin concentration for preeclampsia had sensitivity of 61%, specificity 87%, 61% positive, and 87% negative predictive value.
The differences between the concentrations of uNGAL after 12 months and the initial concentrations correlated with, analogically assessed, changes in the concentrations of urinary albumin (R = 0.42; p = 0.026).
The urinary albumin excretion rate measured was 181.0616.98 mg/24 hours in type 1 diabetics and 182.6727.35 mg/24 hours in Type 2 diabetics.
TGP decreased the levels of 24 h urinary albumin excretion rate significantly in diabetic rats.
In non-diabetic patients high levels of urinary albumin, lactose, or tissue proteins can result in gas formation.
Creatinine, urinary albumin levels, serum/urine cystatin C and estimated glomerular filtration rate (eGFR by MDRD [Modification of Diet in Renal Disease] and CKD-EPI [Chronic Kidney Disease Epidemiology Collaboration] equations) were determined.