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==[[Neutrophilia]]==
 
==[[Neutrophilia]]==
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==Neutropenia==
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==[[Neutropenia]]==
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* Neutropenia is a reduction in numbers of [[Neutrophils|neutrophils]] circulating in the blood.
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* Occurs with:
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** Infections caused by Gram-negative organisms.
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*** Cause by the effects of their endotoxins.
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** Factors that destroy their formation in the [[Bone Marrow - Anatomy & Physiology|bone marrow]].
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** For example
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*** Radiation
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*** Toxins affecting bone marrow functions
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**** E.g. Bracken
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*** Some viruses
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**** E.g. Parvovirus and Infectious Canine Hepatitis
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*** Tumours that replace or displace normal [[Bone Marrow - Anatomy & Physiology|bone marrow]].
      
==Eosinophilia==
 
==Eosinophilia==
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***  The antigens of both may sensitise T-lymphocytes, and re-exposure to  the agent may result in quite substantial numbers of eosinophils.
 
***  The antigens of both may sensitise T-lymphocytes, and re-exposure to  the agent may result in quite substantial numbers of eosinophils.
 
** Some breeds of dogs, e.g. German Shepherd.
 
** Some breeds of dogs, e.g. German Shepherd.
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*** Are prone to developing eosinophilia.
 
*** Are prone to developing eosinophilia.
 
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[[Category:Inflammation]][[Category:To Do - Blood]]
 
==Eosinopenia==
 
==Eosinopenia==
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* Occurs as part of the response to corticosteroids;.
 
* Occurs as part of the response to corticosteroids;.
 
** Thought to be associated with the depressive effect of corticosteroids on lymphocytes.
 
** Thought to be associated with the depressive effect of corticosteroids on lymphocytes.
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*** Secretions of these lymphocytes are thought to stimulate eosinophil production.
 
*** Secretions of these lymphocytes are thought to stimulate eosinophil production.
 
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[[Category:Inflammation]][[Category:To Do - Blood]]
 
==Lymphocytosis==
 
==Lymphocytosis==
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*** However, reactive hyperplasia in associated lymph nodes may not correlate with the numbers of circulating lymphocytes.
 
*** However, reactive hyperplasia in associated lymph nodes may not correlate with the numbers of circulating lymphocytes.
 
** Commonly in growing swine.
 
** Commonly in growing swine.
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*** Possibly associated with aMycoplasma infection.
 
*** Possibly associated with aMycoplasma infection.
 
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[[Category:Inflammation]][[Category:To Do - Blood]]
 
==Lymphopenia==
 
==Lymphopenia==
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** Corticosteroid therapy.
 
** Corticosteroid therapy.
 
*** Selectively suppresses lymphocytic activity, and the inflammatory response in general.
 
*** Selectively suppresses lymphocytic activity, and the inflammatory response in general.
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*** Other immunosuppressive drugs may act in a similar way.
 
*** Other immunosuppressive drugs may act in a similar way.
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[[Category:Inflammation]][[Category:To Do - Blood]]
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==Plasma Cells in Blood==
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==Plasma Cells==
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* Plasma cells are rarely observed in blood.
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* Plasma cells are rarely observed in blood.
      
* If many plasma cells are present in blood, it is due to a plasma cell tumour that has begun to metastasise.
 
* If many plasma cells are present in blood, it is due to a plasma cell tumour that has begun to metastasise.
 
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[[Category:Inflammation]][[Category:To Do - Blood]]
 
==Monocytosis==
 
==Monocytosis==
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** In the chronic stages of bacterial disease.  
 
** In the chronic stages of bacterial disease.  
 
* Monocytes very rarely behave as macrophages in the blood.
 
* Monocytes very rarely behave as macrophages in the blood.
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**  However, this is seen in cases of severe intravascular haemolysis of  red blood cells where remnants of the RBC's are found in their  cytoplasm.
 
**  However, this is seen in cases of severe intravascular haemolysis of  red blood cells where remnants of the RBC's are found in their  cytoplasm.
 
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[[Category:Inflammation]][[Category:To Do - Blood]]
    
[[Category:WikiBlood]]
 
[[Category:WikiBlood]]
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