Functions of lipids steroids in animals

Separating serum proteins by electrophoresis is a valuable diagnostic tool as well as a way to monitor clinical progress. Current research regarding blood plasma proteins is centered on performing proteomics analyses of serum/plasma in the search for biomarkers. These efforts started with two-dimensional gel electrophoresis [1] efforts in the 1970s and in more recent times this research has been performed using LC- tandem MS [2] [3] [4] based proteomics. The normal laboratory value of serum total protein is around 7 g/dL.

Sterol lipids, such as cholesterol and its derivatives, are an important component of membrane lipids, [32] along with the glycerophospholipids and sphingomyelins. The steroids , all derived from the same fused four-ring core structure, have different biological roles as hormones and signaling molecules . The eighteen-carbon (C18) steroids include the estrogen family whereas the C19 steroids comprise the androgens such as testosterone and androsterone . The C21 subclass includes the progestogens as well as the glucocorticoids and mineralocorticoids . [33] The secosteroids , comprising various forms of vitamin D , are characterized by cleavage of the B ring of the core structure. [34] Other examples of sterols are the bile acids and their conjugates, [35] which in mammals are oxidized derivatives of cholesterol and are synthesized in the liver. The plant equivalents are the phytosterols , such as β-sitosterol , stigmasterol , and brassicasterol ; the latter compound is also used as a biomarker for algal growth. [36] The predominant sterol in fungal cell membranes is ergosterol . [37]

Triglycerides are found in the blood as a type of lipid and make up about 95 percent of all dietary fats. The calories that are consumed while eating are in the form of carbohydrates, proteins, and fats. The other calories that are not needed for immediate use are converted into this type of lipid and are stored in the body’s fat cells (Hal Bender, 2001, 2003). This leads to the point that the main function of triglycerides is to store energy for later use. The fat cells that hold the triglycerides holds these molecules until the body indicates that it is in need of energy, such as in between meals (Mayo Clinic, 1998–2015). With the help of hormones, these stored triglycerides are released in order to provide this energy between meals. However, if more calories are consumed than burned by the body, the body’s triglyceride level will increase, and this may lead to negative effects. Without triglycerides the body would run out of energy, unless calories are being constantly consumed.

Functions of lipids steroids in animals

functions of lipids steroids in animals

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