(n.) A variety of amphibole or of pyroxene, occurring in long and delicate fibers, or in fibrous masses or seams, usually of a white, gray, or green-gray color. The name is also given to a similar variety of serpentine.
Example Sentences:
(1) Three subcohorts were defined: 3212 men whose only exposure to asbestos was to amosite; 3430 exposed to crocidolite; and 675 to both amphiboles.
(2) Trichophytosis (T. equinum) is characterized as typical numerous small and round patches, covered by small, bran-like, asbestos-coloured scales.
(3) Using recently published data from the Surveillance, Epidemiology, and End Results project, coupled with the previously published estimates, projected asbestos related malignant mesothelioma mortality in the United States for the period 1985-2009 was estimated to be 21,500.
(4) Crocidolite asbestos fibers are rapidly ingested in large amounts by Tetrahymena.
(5) The benign localized mesothelioma is usually considered in the differential diagnosis of pleural tumors, but it is not related to asbestos exposure.
(6) This study examined different markers of lung immunologic and inflammatory responses to previous asbestos exposure.
(7) The role of alveolar macrophage (AM)-derived secretory products in fibroblast stimulation after the instillation of long and short asbestos to rat lungs is now investigated.
(8) Attention to the hazards of asbestos has aroused concern among many healthy persons who have been exposed at some time to one of the world's most versatile materials.
(9) The high sites' density with basic character, evidenced by use of various probe molecules, is very similar for the two asbestos types (chrysotile and crocidolite) and on the same order as the density encountered in some catalysts.
(10) Categorization of the pattern of physiologic abnormalities in patients with asbestos-associated disease may be important for clinical, compensation, and epidemiologic reasons.
(11) These results have been compared with asbestos samples obtained from the National Institute of Environmental Health Sciences (NIEHS).
(12) Results indicated that the percentage of S cells was similar in asbestos-treated and untreated cultures.
(13) The various neoplasms attributed to asbestos in the next decades posed an additional question: What influence did the fibrous shape of the particles have on carcinogenic potential?
(14) In 1964 it was first reported that asbestos workers had a higher risk of gastrointestinal cancer.
(15) There is no doubt that the presence of asbestos in the coal mine is one of the pathogenic factors of pneumoconiosis.
(16) We examined whether exposure of macrophages to crocidolite asbestos induced lipid peroxidation as measured by the thiobarbituric acid assay.
(17) The findings suggest widespread exposure to asbestos dust; occupational histories appeared to indicate the source of exposure in some but not all patients.
(18) The present standard method for evaluating asbestos fiber concentrations in workroom air excludes fibers less than 5 micron long even though it has been shown that small fiber concentrations dominate in a dust cloud.
(19) Among patients with mesothelioma a history of asbestos exposure was obtained in 44%, a history of no exposure in 22% and no specific mention of asbestos in 34%.
(20) Previous suggestions for converting TEM measurements to PCM equivalents lack generality because they fail to take into account the size distribution of the asbestos particles and the expectation that fiber-size distributions in current nonoccupational environments could differ from the workplaces of the past on which the risk equations are based.
Fibrous
Definition:
(a.) Containing, or consisting of, fibers; as, the fibrous coat of the cocoanut; the fibrous roots of grasses.
Example Sentences:
(1) These immunocytochemical studies clearly demonstrated that cells encountered within the fibrous intimal thickening in the vein graft were inevitably smooth muscle cell in origin.
(2) The lesion (10.6 X 9.8 mm) was a well-defined ellipsoid granuloma due to a foreign body with a central zone of necrosis surrounded entirely by a fibrous wall.
(3) The fibrous matrix and cartilage formed within the nonunion site transformed to osteoid and bone with increased vascularity.
(4) Aside from these characteristic findings of HCC, it was important to reveal the following features for the diagnosis of well differentiated type of small HCC: variable thickening or distortion of trabecular structure in association with nuclear crowding, acinar formation, selective cytoplasmic accumulation of Mallory bodies, nuclear abnormalities consisting of thickening of nucleolus, hepatic cords in close contact with bile ducts or blood vessels, and hepatocytes growing in a fibrous environment.
(5) Fibroblasts and myofibroblasts were the cells seen in the fibrous component.
(6) In the area of the porta hepatis, there were many epithelial luminal structures in fibrous tissue with inflammatory infiltrates.
(7) Thus, multiparae had very thick border zones composed predominantly of large nodules and, additionally, of vacuolated cells and fibrous tissue.
(8) Physiotherapy for 4 to 12 weeks produced improvement, but in four cases early operation for excision of fibrous tissue and lengthening of the triceps was necessary to restore adequate flexion.
(9) A primary inflammatory malignant fibrous histiocytoma of the kidney is reported.
(10) The alveolar stability requires particular properties of both the fibrous skeleton and the alveolar surfactant film.
(11) In castrates, the prostatic stroma became thickened, with a large increase in fibrous material between and surrounding each acinus, although smooth muscle cells retained their normal cytology.
(12) At the same time optical and mechanical systems of the Soviet-made sigmoidoscope, model CBO-1, an apparatus equipped with fibrous optical elements for transmission of ligh and image, now in batch production, are described.
(13) In the remaining patients congenital and acquired osseous alterations, supernumerary scalene muscle, congenital fibrous bands were the etiologic factors.
(14) The use of SDS-polyacrylamide gel electrophoresis of the cyanogen bromide derived peptides from fibrous cartilage collagens enabled to calculate type I to type II collagen ratio in this tissue.
(15) The three different layers of this tissue are: the outer fibrous layer, the central part called proliferation zone and the inner part towards the underlying rib called transition zone.
(16) The latter may primarily be the case in fibrous astrocytes, which were stained in reactive and pathologic conditions.
(17) Other problematic diagnoses were cancer of the head and neck and malignant fibrous histiocytoma.
(18) Six were benign, 11 malignant fibrous, and 3 pure malignant histiocytomas.
(19) Two cases of malignant intracranial fibrous histiocytoma are presented.
(20) The later reaction was characterized by the formation of fibrous tissue without inflammatory cell infiltration.