Essential Fatty Acids

Biochemistry

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Data 2fimages 2fqdghtfurqko8sjaemqsn 190403 s0 afzal sidra essential fatty acids intro
03:34
Essential Fatty Acids
Data 2fimages 2fqwk7fopqcoozf1fzezve 190403 s1 afzal sidra importance of essential fatty acids
12:59
Importance of Essential Fatty Acids
Data 2fimages 2fsnte6zbcrazee9h7x6fo 190403 s2 afzal sidra alcohols
08:17
Alcohols
Data 2fimages 2fmv8pxxazqfcdhcqqe6vu 190403 s3 afzal sidra steroids and sterols
09:29
Steroids and Sterols
Data 2fimages 2fml6mbim0qwcr8fxma6kd 190403 s4 afzal sidra cholesterol
12:34
Cholesterol

Lecture´s Description

This sqadia.com medical video lecture is about essential fatty acids. Sidra Afzal talks about the importance and functions of essential fatty acids. Then focus is shifted towards alcohols including glycerol, acrolein test which detects the presence of alcohols. Steroids and sterols, and cholesterol are also discussed.  

Importance of Essential Fatty Acids

Essential fatty acids are polyunsaturated fatty acids. Linoleic acid is the most important essential fatty acid. Sidra Afzal in her medical video lecture at sqadia.com elucidates why essential fatty acids cannot be synthesised? Following this, functions of EFA are pursued along with the clinical aspects. Docosahexaenoic acid is also discussed which is a polyunsaturated fatty acid synthesized from α-linolenic.

Alcohols

Glycerol is the simplest trihydric alcohol. It is a colourless oily fluid with a sweetish taste. Industrial and physiological source of glycerol is described afterwards. How acrolein test detect presence of glycerol is also reported. Furthermore, educator notify about the use of glycerol in industry and in medicine. Lastly, information about unsaturated alcohols is delivered.

Steroids and Sterols

Liebermann-Burchard reaction, Salkowski test, and Zak’s reaction is deliberated under the heading of colour reactions of sterols. Then 7-Dehydrocholesterol is presented which differs from cholesterol in having a second double bond. Ergosterol, stigmasterol and sitosterol, and coprosterol are discussed in succession in this section along with other steroids of biomedical importance.

Cholesterol

Cholesterol possesses cyclopentanoperhydrophenanthrene nucleus. Exogenous and endogenous source of cholesterol is enlightened. Two forms of cholesterol are free form and ester form. Moving onward, esterification of cholesterol comes under consideration. Discussion continues on Norum’s disease which arises due to the failure of esterification of cholesterol. Concluding comments are given on biomedical importance of cholesterol.

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