Why they’re known as Gram Negative Bacteria?
Gram-Negative Bacteria (Pseudomonas Aeruginosa) are merely referred to as so because of their detection by the Gram?s Stain test in which they don’t retain the crystal violet color (dye) in their cell wall. The Gram-Negative bacteria cell-wall holds the pink or reddish dye once a counterstain chemical is utilized.

Cell-wall Structure of Gram-Negative Bacteria:
The outer layer of Gram Negative bacteria cell-wall is produced up of Lypopolysaccharide and Protein (core and O-polysaccharide and Lipid A) and it covers a very couple of thinner layers of Peptidoglycan as compared to Gram Positive bacteria (Peptidoglycan forms the outer layer of the Gram Positive bacteria cell-wall) and does not contain lipoproteins. The outer layer of the cell wall contains porins (pore like structure for a specific kind of molecule). Below the outer layer of Lypopolysaccharide, there exist layers of peri-plasmic space (space between two layers of peptidoglycan and internal cell membrane) and plasma membrane. Some Gram Negative bacteria also have flagella with four surrounding rings.

The cell wall of Gram Negative bacteria also home a component that helps in Endotoxic activity and it also has pyrogenic effects associated with the Gram Negative infections. The Gram-Negative bacteria side wall also has a component which is referred to as side chain that’s made up of Lipopolysaccharide (and has hexoses in various chemical compositions as component of its structures). These side chains carry bases of somatic antigen. These side chains are very critical as a way to classify the Gram Negative bacteria based on their chemical composition.

Gram-Negative Bacteria Examples:
There are numerous groups of Gram-Negative bacteria for example Cyanobacteria, Spirochaetes, Green-Sulphur and Green Non-Sulphur Bacteria and Proteobacteria etc. Out of which, proteobacteria is among the major group of identified Gram-Negative bacteria (it includes bacteria like E-coli, Salmonella, Pseudomonas, Moraxella, Helicobacter, Stenotrophomonas, Legionella, Acetic Acid Bacteria etc.).

Along with the above mentioned bacteria, you will find many other sort of Gram-Negative bacteria like Hemophilus influenzae (also known as Bacillus influenzae), Neisseria Meningitidis, Moraxella Catarrhalis, Neisseria Gonorrhoeae, Acinetobacter Baumanii (which comes under Nosocomical Gram-Negative bacteria group).

What do Gram-Negative bacteria trigger?
Gram-Negative bacteria infection leads to endotoxemia in which the endotoxin (a toxic substance associated with bacteria cell wall or core) come in contact with blood streams and gets mixed with blood. Once the endotoxin is mixed in blood, it becomes extremely difficult to stop the toxic substance from harming/destroying healthy tissues and also causing inflammation of the tissues. The substance can reach any part of the body and commence harm to the tissues. The Gram-Negative bacteria can be killed using medication but the endotoxin substance is very difficult to clean from the blood.

Generally millions of Gram-Negative bacteria are present in animal intestine and a quite modest level of endotoxin associated with these bacteria is also cleaned/detoxified by liver, but once the level of endotoxin increases it may reach blood streams and spread to a variety of parts of the body. When the spread of endotoxin starts in body, the body immune method releases inflammatory substance in the body and causes the body temperature to rise (mild fever). If the presence of endotoxin inside the body is below the normal level which our immune system can fight back, then in such case destruction and inflammation of tissues at a extremely tiny level will be the only harm the infection causes, but if the level of endotoxin is greater than the typical, then in such case the infection can be life-threatening in extreme instances (the effect/intensity of the infection depends on the quantity of endotoxin present inside the body of host). The spread of endotoxin inside the host body and inflammatory reaction by the immune system is referred to as endotoxic shock.

What are primary symptoms of endotoxic shock?
The preliminary symptoms of the endotoxic shock are:
1) Due to the inflammatory substance released by the body?s immune method in reaction to the endotoxin, the host experiences mild fever within the beginning of the endotoxic shock.
2) The host may possibly also expertise lack of hunger
3) Mild mental and physical depression
4) Because of the spread of toxic substance the host also experiences boost in heart rates and low pulse pressure
5) Issues like cold feet, cold ears and dehydration also are observed in the host suffering from endotoxic shock
6) The body temperature of the host shows sudden increase of decrease at any given time
7) Diarrhea, etc.

Treatments available for Gram-Negative bacteria?
Gram-Negative bacteria are protected against most of the antibiotics, detergents and chemicals by their outer cell-wall. Numerous generally used antibiotics don’t work against Gram-Negative bacteria; thankfully you will find couple of antibiotics which work against them. In order to let the antibiotics function properly and quit the Gram-Negative bacteria from creating resistance against those medicines, it really is necessary that the patient really should total the course of antibiotics prescribed by doctor.