This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Discuss the essential nature of selenium. Where and why are deficiencies observed in the world? ... (Read 35 times)

Beheh

  • Hero Member
  • *****
  • Posts: 520
on: Aug 20, 2018
Discuss the essential nature of selenium. Where and why are deficiencies observed in the world?
 
  What will be an ideal response?

Question 2

Discuss the role of copper in the disorders Menkes disease and Wilson's disease.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Eunice618

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Aug 20, 2018
Answer to Question 1

Selenium is one of the body's antioxidant nutrients, working primarily as a part of proteinsmost notably, the glutathione peroxidase enzymes. Glutathione peroxidase and vitamin E work in tandem. Glutathione peroxidase prevents free-radical formation, thus blocking the chain reaction before it begins; if free radicals do form and a chain reaction starts, vitamin E stops it.

Answer to Question 2

Two rare genetic disorders affect copper status in opposite directions. In Menkes disease, the intestinal cells absorb copper, but cannot release it into circulation, causing a life-threatening deficiency. Treatment involves giving copper intravenously. In Wilson's disease, copper accumulates in the liver and brain, creating a life-threatening toxicity. Wilson's disease can be controlled by reducing copper intake, using chelating agents such as penicillamine, and taking zinc supplements, which interfere with copper absorption.


Beheh

  • Member
  • Posts: 520
Reply 2 on: Aug 20, 2018
:D TYSM

blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

McGill University's Gault Nature Reserve on Mont-Saint-Hilaire, Quebec. McGill University's Gault Nature Reserve on Mont-Saint-Hilaire, Quebec.
Chloroplasts Feed the World Chloroplasts Feed the World
teach their children to care for the earth in hopes of passing on a better world to future generatio teach their children to care for the earth in hopes of passing on a better world to future generatio
How The World Is Urbanizing How The World Is Urbanizing
Fundamentals of Management: Essential Concepts and Applications Fundamentals of Management: Essential Concepts and Applications
An Example of Nature’s Mathematics Parabola : The Rainbow An Example of Nature’s Mathematics Parabola : The Rainbow
Video: Introduction to Eating Disorders

For a complete list of videos, visit our video library