Carcinomas epidermóides do pulmão na doença vibroacústica

Abstract

Epidemiological studies indicate that squamous cell carcinomas account for approximately 40% of all lung tumours in men. It seems to be highly relevant that all VAD patient respiratory tract tumours are squamous cell carcinomas. It is not surprising that helicopter pilots are the ones who are affected the earliest because previous studies have shown that helicopter pilots exhibited the highest values for the frequency of sister chromatid exchanges. Generally, epidemiological tumor studies do not take histological tumor type into account, but given the results herein, it would seem of the utmost importance to begin specifiying the exact histological type of tumor in all statistical studies.

Noise rich in low frequency components, a new comorbidity for periodontal disease? An experimental study

“…[12] in the perivasculoductal connective tissue of the parotid gland, in which there is significant fibrosis and increase of collagen I and V in the connective tissue of the gland with exposure time, or to those reported by Fonseca et al ., that described fibrosis in the stomach and duodenum walls and the same behavior in collagens. [1016] Other organs such as vessels,[56] pericardium,[17] trachea,[18], or lungs,[19] have been shown to be affected by fibrosis when exposed. Ferreira et al .…”

“…Ferreira et al . [18] stated that this proliferation of extracellular matrix could be a protective response against the direct mechanical aggression of sound pressure. A protective or even a recovery response from the periodontium exposed to LFN could explain the lack of differences between g3 and g13.…”