Peripheral airways combine branched tubes for ventilation with the gas exchanging alveoli in the pulmonary acini, defined as the complex of airways supplied by one first order respiratory or transitional bronchiole. In this part, the replenishment of oxygen at the alveolar surface occurs by a combination of convective air flow with diffusion of oxygen in the air. The transition between convecti...

We report an outbreak of severe respiratory disease associated with a novel Mycoplasma species in ferrets. During 2009-2012, a respiratory disease characterized by nonproductive coughing affected ≈8,000 ferrets, 6-8 weeks of age, which had been imported from a breeding facility in Canada. Almost 95% became ill, but almost none died. Treatments temporarily decreased all clinical signs except cou...

an alveolus or a bronchiole, from which, if it keeps open long enough, it may absorb large quantities of air. Air embolism, though the most dangerous complication <>f artificial pneumothorax treatment (AP), is so rare, that we suggest the advisability of different workers recording the details of all cases of air embolism so that it may be possible ultimately to establish which of the above is ...

Two cases of extralobar pulmonary sequestrations from a walrus (Odobenus rosmarus) and a Steller sea lion (Eumetopias jubatus) are described in the present study. Grossly, an independent, soft unilocular cystic mass was found within the abdominal cavities of both animals, adherent to the diaphragm in O. rosmarus and attached to the cardia of the stomach in E. jubatus. Histopathologically, the c...

In the last two decades scrutiny of several retrospective occupational studies on performed by NIOSH in early 2000’s ambient indoor air exposures to flavoring chemical diacetyl and more complex butter formulations has led a reported association between severe irreversible lung disease, primarily bronchiolitis obliterans. A group laboratory rodent studies, associated researchers, followed next w...

Acute pulmonary epithelial injury produced by short-term exposure to ozone varies by site within the tracheobronchial tree. To test whether this variability is related to the local dose of ozone at the tissue site or to local concentrations of glutathione, we exposed adult male rhesus monkeys for 2 h to filtered air or to 0.4 or 1.0 ppm ozone generated from 18O2. Following exposure, lungs were ...

Objective: In this study, it was aimed to evaluate the levels of interleukins such as IL-1β, IL-6, IL-10 and IL-12β in Jaagsiekte sheep by immunohistochemical methods. way, will be revealed whether are effective progression how useful they diagnosis disease. &#x0D; Material-Method: The material current study consisted lung tissues 26 (Control, n=6 Jaagsiekte, n=20) brought Department Pathology ...

BACKGROUND De novo lymphatic vessel formation has recently been observed in lungs of patients with moderate chronic obstructive pulmonary disease (COPD). However, the distribution of lymphatic vessel changes among the anatomical compartments of diseased lungs is unknown. Furthermore, information regarding the nature of lymphatic vessel alterations across different stages of COPD is missing. Thi...

Differences in particle deposition patterns between human and rat lungs may be attributed primarily to their differences in breathing patterns and airway morphology. Heterogeneity of lung structure is expected to impact acinar particle deposition in the rat. Two different morphometric models of the rat lung were used to compute particle deposition in the acinar airways: the multiple-path lung (...

Humidifier disinfectant (HD) damage was terrible chemical damage caused by household goods that happened in only South Korea, but still very little is known in HD damage. Up to now, previous research tried to focus on interstitial fibrosis on terminal bronchioles and alveoli because it is a specific finding, compared with other diseases. To figure out whole effects from HDs, much epidemiologic ...