Gene/Protein Disease Symptom Drug Enzyme Compound
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The peroxidase anti-peroxidase technique was used to demonstrate free and intracellular immunoglobulin (Ig) within the lungs of 23 horses with chronic small airway disease. Histologically, all the horses had chronic bronchiolitis; however, the lesions varied in degree from mild in eight horses, to moderate in nine horses and severe in six horses. Lungs from three horses which had no gross or histopathological lesions were used as controls. In comparison with control horses, horses with mild chronic bronchiolitis had increased numbers of Ig A-containing and non-immunoglobulin staining cells around the vasculature and bronchioles. As the severity of the lesions increased so did the number of IgA-, IgG(Fc)- and in several cases non-immunoglobulin staining cells around the vasculature, bronchioles and in the alveolar septa. In severely affected horses, large amounts of free IgG(Fc) were observed interstitially and in alveoli. In areas of mucosal epithelial hyperplasia and metaplasia large amounts of free IgA and IgG(Fc) were sometimes observed interepithelially in a pattern which differed from that in control horses.
Vet Rec 1988 Feb 20
PMID:Chronic small airway disease in the horse: immunohistochemical evaluation of lungs with mild, moderate and severe lesions. 328 89

Lung biopsies were taken through the ninth intercostal space on the two sides of the thorax of 10 clinically healthy sheep, using a Tru-Cut needle on one side and the Bard Biopty-System on the other. Nine of the 10 sheep remained clinically healthy, but one coughed transiently and had a mild bloody discharge from the right nostril immediately after the biopsy. The sheep were slaughtered 10 days later and the lungs and pleura were examined macroscopically; there were either no lesions or only small scars visible at the sites of the biopsies. However, well-developed subpleural nodules due to parasites were observed in some of the lungs. There were no adhesions between the costal and pulmonary pleurae. Of the 20 biopsy specimens, 18 were ideal for histological examination, and none of them was histologically normal. Mild interstitial pneumonia was diagnosed in 15 specimens, chronic bronchiolitis in nine specimens, and hyperplasia of smooth muscle or connective tissue in 17.
Vet Rec 2000 Apr 29
PMID:Ultrasound-guided percutaneous lung biopsy in sheep. 1132 Dec 14