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| | ==[[Neutrophilia]]== | | ==[[Neutrophilia]]== |
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| − | ==Neutropenia== | + | ==[[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]].
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| | ==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. |
| − | | + | [[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. |
| − | | + | [[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. |
| − | | + | [[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. |
| | + | [[Category:Inflammation]][[Category:To Do - Blood]] |
| | + | ==Plasma Cells in Blood== |
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| − | ==Plasma Cells==
| + | * Plasma cells are rarely observed in blood. |
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| − | * Plasma cells are rarely observed in blood.
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| | * 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. |
| − | | + | [[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. |
| − | | + | [[Category:Inflammation]][[Category:To Do - Blood]] |
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| | [[Category:WikiBlood]] | | [[Category:WikiBlood]] |