Explain polyenes - amphotericin b, Biology

Assignment Help:

Polyenes: amphotericin b

Amphotericin B products are the only polyenes currently available for systemic treatment of fungal infections.  Nystatin, another polyene, is only available topically.  A liposomal formulation of nystatin is in clinical development for treatment of systemic fungal infections containing invasive aspergillosis.

Polyenes act by binding to ergosterol in the fungal cell membrane, leading to loss of membrane integrity and leakage of cell contents. Conventional amphotericin B and the newer lipid-based formulations have the similar spectrum of activity and are active against most patho- genic fungi and some protozoa. Exceptions include Aspergillus ter- reus,  Fusarium spp.,  Pseudallescheria boydii and some strains of Candida lusitaniae. Amphotericin is used for treatment of many fungal disorders including aspergillosis, blastomycosis, candidiasis, coccidioidomycosis, cryptococcosis (containing meningitis), histoplasmosis, paracoccidioidomycosis, sporotrichosis and zygomycosis. It is also used as empiric therapy in febrile neutropenic patients.

 


Related Discussions:- Explain polyenes - amphotericin b

The eye refract the light, Which parts of the eye refract ('bend') the ligh...

Which parts of the eye refract ('bend') the light in such a way as to form an image on the retina?   The curved surface of the cornea, and the aqueous humour enclosed by it,

Sulphur cycle, Sulphur is one of important of proteins vitamins and hormone...

Sulphur is one of important of proteins vitamins and hormones. It plays a very crucial role in health of both plants and animals. Most of earth sulphur is tied up in rocks and salt

What is in a test cross invovle, In a test cross: A.alleles of two genes is...

In a test cross: A.alleles of two genes is always involved. B.One parent must be homozygous recessive C.the physical manifestation of a trait can be deterimined. D.both A and C are

Describe about the secondary prevention - food allergy, Describe about the ...

Describe about the Secondary Prevention - Food Allergy? Secondary allergic preventive measures will focus on: Initiating prospective surveillance of infants, young child

Excretory system, What are the excretory organ in protozoa,coelenterates, i...

What are the excretory organ in protozoa,coelenterates, insects,spider,and arthropods

What is a terrestrial organism, What is a terrestrial organism? 'Terra'...

What is a terrestrial organism? 'Terra' is the Latin word for earth. Thus, an animal that lives on the surface of the earth is known as terrestrial. This is the similar root wo

Define the foam mat drying method, Define the Foam Mat Drying Method? T...

Define the Foam Mat Drying Method? This process is a development of the vacuum puffing but, instead of employing a vacuum to foam the material, it is initially foamed by suitab

Illustrate about the non-concomitant, Non-concomitant or Paralytic Squint ...

Non-concomitant or Paralytic Squint This subdivision of manifest squint occurs when there is a deviation of the eye in different directions. The causes for non-concomitant squ

Symptoms of hiatus hernia, Q. Symptoms of hiatus hernia? In most patien...

Q. Symptoms of hiatus hernia? In most patients, no symptoms are seen. When symptoms do occur, they are: 1. discomfort after heavy meal, 2. Difficulty in breathing while l

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