A case of ovine pulmonary adenocarcinoma is reported in a five month-old indigenous lamb of the department of Puno, Peru. At clinical inspection, the animal presented dyspnea, body weight loss and abundant lung secretion. The necropsy revealed in both diaphragmatic lobes the presence of two grayish white nodular formations with plenty of white foamy fluid emanating from the trachea. At the cut surface of the tumor was observed irregular micronodules with a tendency to coalesce. Histologically, the tumors were composed of columnar or cuboidal cells isolated by a fibrotic stroma and surrounded by alveoli flooded with macrophages of vacuolar cytoplasm. Intraluminal polyps were observed in the terminal bronchioles compromising the bronchiolar epithelium. Molecular analysis of lung tissue and fluid contained the exogenous genetic sequences of type D retrovirus. Retroviral infection with multi...

A case of ovine pulmonary adenocarcinoma is reported in a five month-old indigenous lamb of the department of Puno, Peru. At clinical inspection, the animal presented dyspnea, body weight loss and abundant lung secretion. The necropsy revealed in both diaphragmatic lobes the presence of two grayish white nodular formations with plenty of white foamy fluid emanating from the trachea. At the cut surface of the tumor was observed irregular micronodules with a tendency to coalesce. Histologically, the tumors were composed of columnar or cuboidal cells isolated by a fibrotic stroma and surrounded by alveoli flooded with macrophages of vacuolar cytoplasm. Intraluminal polyps were observed in the terminal bronchioles compromising the bronchiolar epithelium. Molecular analysis of lung tissue and fluid contained the exogenous genetic sequences of type D retrovirus. Retroviral infection with multi...

Polysaccharides isolated from Pattalus mollis (PPM) were obtained by the method of enzymatic hydrolysis and by precipitation with ethanol. A component analysis was carried out, which consisted in the determination of the content of sulfates, total sugars and total proteins by conventional methods. The objective of this study was to obtain the polysaccharides by enzymatic hydrolysis. The enzyme papain was used to break peptide bonds and ethanol to precipitate polysaccharides. The content of sulfates, total sugars and proteins was 2.36, 2.83 and 22.3%, respectively.

Polysaccharides isolated from Pattalus mollis (PPM) were obtained by the method of enzymatic hydrolysis and by precipitation with ethanol. A component analysis was carried out, which consisted in the determination of the content of sulfates, total sugars and total proteins by conventional methods. The objective of this study was to obtain the polysaccharides by enzymatic hydrolysis. The enzyme papain was used to break peptide bonds and ethanol to precipitate polysaccharides. The content of sulfates, total sugars and proteins was 2.36, 2.83 and 22.3%, respectively.