The Cause Of Surfactants In The Human Body

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A surface active agent, also known as a surfactant is a substance that surrounds the inner surface of the lung and consists of four proteins and six phospholipid fats that are manufactured inside of the lung of the human body, however this substance can also be created artificially. The four proteins include the hydrophilic or water attracting proteins SP-A and SP-D and the opposite hydrophobic or water repelling proteins, SP-B and SP-C. The main purpose of a natural surfactant found in the body is to decrease the amount of surface tension of fluid (attraction of surface particles found in a liquid) that can be found in an organ. In the lungs for example this is achieved by securing the small air sacs inside of the alveoli (lungs).
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The most serious of these being hyaline membrane disease (HMD), most commonly known as RDS or respiratory distress syndrome. Babies that suffer from this condition will tend to find it very difficult to breathe due to the increased surface tension and the ultimate lack of oxygen transported through the body can seriously impair and damage the functions of the brain and other organs of the baby. Surfactant deficiency’s can also sometimes be caused by mutations in a particular gene. An example of this is surfactant protein or SP-B deficiency. This particular dysfunction is hereditary and is caused by a gene mutation on chromes number two. Babies that suffer from tis condition rarely survive past a few months. However there are some procedures that can help babies who may have been born prematurely and have not manufactured enough surfactants to support regular functions. Surfactant replacement therapy and surfactant supplements are amongst the most popular treatments of these types of surfactant deficiencies in newly born…show more content…
This substance is produced when a human digests lipids or fats. According to Sareen Gropper and Jack Smith’s “Advanced Nutrition and Human Metabolism” bile is produced through the process of chemically altering cholesterol, which is a type of fat found in a human’s blood. This process takes place in the liver and bile acids are produced. These bile acids are then conjugated or united with taurine and glycine to produce biosurfactants known as bile salts. The existence of bile salts inside of bile gives the substance the capacity to amalgamate lipids and fats with their aqueous (watery) environment inside of the gallbladder. According to Sareen Gropper and Jack Smith’s “Advanced Nutrition and Human Metabolism” bile is released from its origin (gallbladder) into the small intestine. Through the process of emulsification the bile substance in the small intestine disintegrates fats into much tinier particles which can be digested and absorbed at a much more efficient and quicker rate. This evidently shows that without bile and in turn bile salts the digestion of fats will not be
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