Ms. Shaikh Biology Unit Task

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Lactose intolerance.

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Ms. Shaikh Biology Unit Task

  1. 1. By: Abi Benedict
  2. 2. The Key Players  Issue • Lactase Deficiency Disease • Lactose Intolerance
  3. 3. What is lactose intolerance?  Lactose intolerance is the inability to digest lactose, a sugar found in milk and milk products When the body consumes any milk or milk based products, lactose, the sugar found in milk products is also consumed. In order to break down the sugar into glucose and galactose that can be absorbed into the bloodstream, the body uses the enzyme named lactase. The body’s inability to process milk and milk products is called lactose intolerance and is caused by the deficiency of the lactase enzyme.
  4. 4. Enzymes  The purpose of an enzyme in a cell is to allow the cell to carry out chemical reactions quickly. These reactions allow the cell to constuct things or take things apart when needed. This is how a cell grows and reproduces. a cell is really a little bag full of reactions that are made possible by enzymes. http://www.youtube.com/watch?v=JiFy- 2hzJlw&feature=related
  5. 5. Hydrolysis Lactase hydrolysis cuts byadding water to the sugarlactose into two simplesugars, glucose andgalactose. Both the initialand final solutions arecolourless.
  6. 6. Lactase Deficiency when the body begins to produce less lactase results from injury to the small intestine that occurs with severe diarrheal illness, celiac disease,, or chemotherapy. is a genetic disorder which prevents enzymatic production of lactase.
  7. 7. What is Lactase?  Lactase is a form of enzyme which is present in the humans small intestine. It is responsible for the digestion and break down of lactose (or milk sugar) in milk products.
  8. 8. SYMPTOMS • abdominal pain • abdominal bloating • gas • diarrhea • nauseahttp://www.youtube.com/watch?v=8V81uwYDa0Q
  9. 9. Calcium Chart (Intake) 
  10. 10. How does lactose intolerance effect your body?  Lactose intolerance can give you a high chance of developing osteoporosis. Osteoporosis is a condition characterized by a decrease in the density of a bone, decreasing its strength and resulting in fragile bones. Osteoporosis is due to lack of calcium, which dairy products can give you, which lactose intolerant people can not gain.
  11. 11. Tests  EndoscopyEndoscopy is a way of lookinginside the body using aflexible tube that has a smallcamera on the end of it. Thisinstrument is called anendoscope.
  12. 12. Tests Lactose- Hydrogen Breath  Test• A breath sample will be collected and tested for the presence of hydrogen.• To obtain the sample, you will be asked to blow up a balloon-type bag.• Normally, very little hydrogen is found in the breath.• Increased hydrogen breath levels indicate improper digestion.
  13. 13. Tests Lactose Tolerance Test • Measures how well the body breaks down milk sugar in the intestines. The patient must not eat or drink for 8 to 12 hours before the test. After this, a blood sample is taken in order to measure the amount of sugar in the blood. A solution containing milk, sugar and some lemon is then drunk by the patient. If they are able to break down milk sugar properly in the intestines, the level of sugar in the blood will rise within an hour of drinking the solution. Then another blood test would be taking place. If the level of blood sugar does not rise this may mean lactose is not split into galactose and glucose. Stool pHA fecal pH test is one where a induvisual of feces is tested for acidity in order todiagnose a medical condition. Human feces is normally alkaline. An acidic stoolcan indicate a digestive problem such as lactose intolerance.
  14. 14. Treatment/Technologies Lactose Avoidance  • The most effective treatment is to avoid foods and medications that contain lactose, primarily milk and milk products. Calcium Supplementation • Physicians recommend that you take supplemental calcium. Which include pills, or different types of juice.
  15. 15. Treatment/Technologies  Lactase Enzyme Supplementation • You can take lactase enzyme supplements to prevent symptoms when eating/drinking lactose- containing dairy products. • Lactase drops may be dropped into regular milk 24 hours before drinking to reduce lactose levels.
  16. 16. Technology/Something New  Something that they can develop is an app for Iphones or blackberries, to see what percentage of dairy is in a product. Also a new technology they should develop is finding if a child is lactose intolerance before the child is born.
  17. 17. News Articles  http://www.usatoday.com/tech/science/2009-08- 30-lactose-intolerance_N.htm http://news.bbc.co.uk/2/hi/6397001.stm http://latino.foxnews.com/latino/health/2012/01/ 20/think-are-lactose-intolerant-might-want-to-think- again/ http://www.gastrojournal.org/article/S0016- 5085(02)00013- 6/abstract?referrer=http%3A%2F%2Fscholar.google. ca%2Fscholar%3Fhl%3Den
  18. 18. Something to think about. . .  Do you think its safe to take pills that help you digest dairy? What if something goes wrong? Is there a way to fix that? Do you think soya milk is safe to drink when you are lactose intolerant? Do you think that lactose intolerance can run in genes?

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