Biomaterial Database

Histopathological and immunohistochemical findings in the lungs of pigs infected experimentally with Mycoplasma hyopneumoniae. 2009

E Redondo, and A J Masot, and A Fernández, and A Gázquez

Department of Histology and Pathology, Veterinary Faculty, University of Extremadura, Avenida de la Universidad s/n, 10071 Cáceres.

Pigs were infected intranasally with Mycoplasma hyopneumoniae and killed at intervals ranging from 7 to 35 days post-infection (dpi). Histopathological changes consisted of (1) exudates in airways and alveolar lumina, (2) peribronchial and peribronchiolar lymphoid hyperplasia, and (3) enlargement of alveolar septa. These changes were particularly marked from 7 to 28dpi, coinciding with significant increases in the expression, detected immunohistochemically, of cytokines (IL-1alpha, IL-1beta, IL-8, TNF-alpha and INF-gamma) and lymphoid markers (CD4+, CD8+, muramidase, IgG+, IgA+). Both the lesions and immunohistochemical signals declined in intensity beyond 35 days.

UI	MeSH Term	Description	Entries
D007150	Immunohistochemistry	Histochemical localization of immunoreactive substances using labeled antibodies as reagents.	Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008168	Lung	Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.	Lungs
D008221	Lymphoid Tissue	Specialized tissues that are components of the lymphatic system. They provide fixed locations within the body where a variety of LYMPHOCYTES can form, mature and multiply. The lymphoid tissues are connected by a network of LYMPHATIC VESSELS.	Lymphatic Tissue,Lymphatic Tissues,Lymphoid Tissues,Tissue, Lymphatic,Tissue, Lymphoid,Tissues, Lymphatic,Tissues, Lymphoid
D001980	Bronchi	The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.	Primary Bronchi,Primary Bronchus,Secondary Bronchi,Secondary Bronchus,Tertiary Bronchi,Tertiary Bronchus,Bronchi, Primary,Bronchi, Secondary,Bronchi, Tertiary,Bronchus,Bronchus, Primary,Bronchus, Secondary,Bronchus, Tertiary
D004797	Enzyme-Linked Immunosorbent Assay	An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed.	ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013553	Swine Diseases	Diseases of domestic swine and of the wild boar of the genus Sus.	Disease, Swine,Diseases, Swine,Swine Disease
D045705	Mycoplasma hyopneumoniae	A species of gram-negative bacteria that causes MYCOPLASMA PNEUMONIA OF SWINE. The organism damages the CILIA in the airways of the pig, and thus compromises one of the most effective mechanical barriers against invading pathogens. The resulting weakening of the IMMUNE SYSTEM can encourage secondary infections, leading to porcine respiratory disease complex.
D045729	Pneumonia of Swine, Mycoplasmal	A chronic, clinically mild, infectious pneumonia of PIGS caused by MYCOPLASMA HYOPNEUMONIAE. Ninety percent of swine herds worldwide are infected with this economically costly disease that primarily affects animals aged two to six months old. The disease can be associated with porcine respiratory disease complex. PASTEURELLA MULTOCIDA is often found as a secondary infection.	Enzootic Pneumonia of Swine,Mycoplasmal Pneumonia of Swine,Pneumonia of Swine, Enzootic,Enzootic Pneumonia of Pigs,Mycoplasma Pneumonia of Pigs,Mycoplasma Pneumonia of Swine,Swine Enzootic Pneumonia,Swine Mycoplasma Pneumonia,Swine Mycoplasmal Pneumonia
D034421	Sus scrofa	A species of SWINE, in the family Suidae, comprising a number of subspecies including the domestic pig Sus scrofa domestica.	Pig, Domestic,Sus scrofa domesticus,Wild Boar,Sus scrofa domestica,Boar, Wild,Boars, Wild,Domestic Pig,Domestic Pigs,Pigs, Domestic,Wild Boars