Define the role of vitamin a in immune response, Biology

Assignment Help:

Define the Role of Vitamin A in immune response?

Vitamins A is essential to normal immune function and- regulation. As discussed above, during vitamin A deficiency the goblet cell numbers are reduced in epithelial tissues and as a consequence, mucous secretions (with their antimicrobial components) diminish. Cells lining protective tissue surfaces fail to regenerate and differentiate; hence they flatten and accumulate keratin.  Both factors - the decline in mucous secretions and loss of cellular integrity- reduce the body's ability to resist invasion from potentially pathogenic organisms. Pathogens can also compromise the immune system by directly interfering with the production of some types of protective secretions and cells.


Related Discussions:- Define the role of vitamin a in immune response

Explain capillaries of the vascular system, Q. What are the capillaries of ...

Q. What are the capillaries of the vascular system? Capillaries are small blood vessels that perform exchange of substances between the tissues and blood the body Capillaries a

Diagram and describe the signalling of toll, Diagram and describe the signa...

Diagram and describe the signalling of toll like receptors and the resulting cytokines.

Define single beam and double beam optical path, Define Single Beam and Dou...

Define Single Beam and Double Beam Optical Path? In simpler instruments, a single beam of light passes through the cuvettes and reaches the detector whereas in the double beam

Parasitic flat worms, plese help for an assignment of topic parasitic flat ...

plese help for an assignment of topic parasitic flat worms for a first year zoology student.

Illustrate about the chemical disinfection, Illustrate about the Chemical d...

Illustrate about the Chemical disinfection Sharp waste may cause injury and person may have diseases like Hepatitis B, Cand HIV/AIDS. Therefore it is important for to understa

What type of selection is being demonstrated, If a cow develops a preferenc...

If a cow develops a preference for eating white four o'clock flowers and ignoring pink and red four o'clock flowers, what type of selection is being demonstrated? Would the cow eve

How is the blood typing concerning the abo system, How is the blood typing ...

How is the blood typing concerning the ABO system and the Rh usually done? In the blood typing for the ABO system and the Rh system a blood sample is collected from the person

How does the cellular immune response take place, Q. How does the cellular ...

Q. How does the cellular immune response take place? The lymphocytes that participate in the cellular immune response are the T lymphocytes and T lymphocytes differentiate into

Explain the ethological approach in taxonomy, Explain the Ethological Appro...

Explain the Ethological Approach in Taxonomy The use of behavioural or ethoIogica1 characteristics in animals is relatively new, though extremely useful, particularly in the id

Mode of hormone action through intracellular receptors, MOD E OF HORMONE A...

MOD E OF HORMONE ACTION THROUGH INTRACELLULAR RECEPTORS - Steroid hormones are lipid-soluble and easily pass through the cell membrane of a target cell into the cytoplasm.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd