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Bronchoalveolar lavage (BAL), also known as bronchoalveolar washing, is a diagnostic method of the lower respiratory system in which a bronchoscope is passed through the mouth or nose into an appropriate airway in the lungs, with a measured amount of fluid introduced and then collected for examination.
Lung washings or tissue for histopathologic analysis are most commonly obtained using bronchoalveolar lavage and/or lung biopsy. [13] Characteristic biopsy findings show filling of the alveoli (and sometimes terminal bronchioles) with an amorphous eosinophilic material, which stains strongly positive on PAS stain and the PAS diastase stain.
Whole lung lavage (WLL), also called lung washing, is a medical procedure in which the patient's lungs are washed with saline (salt water) by filling and draining repeatedly. It is used to treat pulmonary alveolar proteinosis , in which excess lung surfactant proteins prevent the patient from breathing.
Lipid-laden alveolar macrophages, also known as pulmonary foam cells, [2] are cells found in bronchoalveolar lavage (BAL) specimens that consist of macrophages containing deposits of lipids (fats). [3] The lipid content of the macrophages can be demonstrated using a lipid targeting stain like Oil Red O or Nile red.
Rodents have been employed in biomedical experimentation from the 1650s. [1] Rodent studies up to the early 19th century were mainly physiological or toxicological.The first rodent behavioral study was carried out in 1822, a purely observational study [2], while quantitative rodent behavioral testing began in the late 19th century [1] [2].
Antral lavage; Antiseptic lavage; Bronchoalveolar lavage; Whole lung lavage; Gastric lavage; Peritoneal lavage; Arthroscopic lavage; Ductal lavage; Nasal irrigation; Ear lavage - delivery of an irrigant (usually normal saline) under direct pressure that is produced by an electrically powered device, useful in cleaning e.g. chronic wounds. [1
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Harlan Sprague Dawley Inc. was a supplier of animals and other services to laboratories for the purpose of animal testing. [1] It provided pre-clinical research tools and services for the pharmaceutical, biotechnology, agrochemicals, industrial chemical, and food industries.