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Query: UMLS:C0242379 (lung cancer)
 71,905 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Serum and BAL CEA levels were determined in stage I (WHO scale) lung cancer patients. The immuno-enzyme assay for the quantitative determination of CEA according to enzyme-linked immunosorbent assay (ELISA) principle was used. Eight smokers without symptoms of respiratory disease served as a control group. The CEA levels were also determined in 48 patients with chronic bronchitis to evaluate the influence the role of the inflammatory processes of the respiratory tract in producing CAE. All determined serum, and BAL fluid CEA levels were related to total protein and albumin for comparison of both media. It was shown that the BAL fluid CEA levels in lung cancer patients exceeded 10-fold the control levels, and twice fold the levels found in chronic bronchitis. It must be emphasized that serum levels were within normal limits in all analysed groups. The concentration of CEA expressed as ratio to total protein and albumin supported a diagnostic usefulness of CEA in BAL and indicated a slight modification of it by inflammatory process.
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PMID:[Concentration of carcinoembryonic antigen in the serum and bronchoalveolar lavage fluid in patients with lung cancer]. 263 45

The mean annual rate of decline of the probability of dying 5 years of age in developing countries is 2.5%. Nevertheless disease accounts for a considerable proportion of premature deaths. The leading causes of death in these countries, in order, include respiratory disease, diseases of the circulatory system, low birth weight, diarrhea, measles, injuries, malnutrition, and neoplasms. These conditions represent diseases of poverty and affluence. Respiratory infections are common among 5-year old children and cause a high proportion of child deaths. Circulatory diseases tend to be limited to adults. Control of hypertension, diet, smoking prevention, and exercise can prevent circulatory diseases. The risk of dying in infancy and childhood and of developmental disabilities is higher among low birth weight infants than those who weigh 2500 gm. In Bangladesh, 50% of infants weight 2500 gm. Low birth weight is the underlying cause of death for many infants who die of respiratory infections and diarrhea. Oral rehydration can successfully treat most diarrhea cases. Malnutrition and diarrhea tend to occur together and feed off each other. In fact malnourished people are more susceptible to all infections. Malnourished children suffer from disabilities in development and growth. The greatest sufferers of measles are infants and malnourished children. Immunization of all =or 9-month old infants would eradicate measles. Children and young adults are at the highest risk of injuries. Lung cancer is on the rise in developing countries due to the increase of tobacco smoking. Various means of controlling malaria are use of mosquito nets, antimalarial drugs, reduction of mosquito breeding places, and pesticides. The new infectious disease, AIDS, has emerged as a considerable health problem in developing countries. High priority research areas are vaccines for Streptococcus pneumonia, Plasmodium app., rotavirus, Salmonella typhi (Ty21a), and Shigella spp.
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PMID:Disease problems in the Third World. 269 79

Biochemical validation of reported exposure to environmental tobacco smoke (ETS) lends credibility to epidemiological studies investigating the association of passive inhalation of smoke to respiratory disease or lung cancer. In the current study, a series of questions regarding ETS exposure was self-administered to nonsmokers and self-reported intensity of exposure was compared with cotinine levels in urine samples obtained on site. The target population of this study was a group of municipal workers who reported exposure in a domestic setting and/or in the workplace. When asked if they were exposed to ETS on social occasions, both males and females who responded positively had higher urinary cotinine levels (P less than 0.02) than those who gave a negative response. Mean urinary cotinine concentrations were found to be elevated in both men and women who reported that they lived with a smoker. Cotinine levels in the urine of those reporting exposure were over twice as high as those in the urine of respondents who denied having been exposed. ETS exposure in the home was the greatest contributor to increased urinary cotinine levels in both men and women. Among individuals who were exposed at work only, the reported degree of exposure agreed well with the mean urinary cotinine values. Those findings emphasize that the validation of exposure status with a biomarker is an essential prerequisite for epidemiological studies investigating passive smoking.
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PMID:Biochemical validation of self-reported exposure to environmental tobacco smoke. 272 73

The mortality of workers from an Ontario factory manufacturing amosite asbestos insulation materials under poorly controlled environmental conditions is reported here. Seven (58%) of 12 deaths among exposed workers 10 or more years after first exposure were due to malignancies; four (25%) were from lung cancer, and there were two deaths from peritoneal mesothelioma. Those dying from mesothelioma were 47 and 49 years of age. Three (25%) of 12 deaths were from respiratory disease, two were attributed to asbestosis (in men 42 and 53 years of ages), and one to pneumonia in a 54-year-old male.
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PMID:Mortality among employees of an Ontario factory manufacturing insulation materials from amosite asbestos. 272 89

A set of 620 patients was examined. Out of them, 245 suffered from lung carcinoma of different type and stage, 28 suffered from other malignant tumors, 37 were affected with benign tumors, and 166 were suffering from a nonmalignant respiratory disease (tuberculosis, nonspecific pneumonia, chronic bronchitis, abscesses, cysts, asthma, lung fibrosis, bronchiectasis and sarcoidosis). In addition to these patients, 144 blood donors were examined who represented the control group of healthy individuals. In a blind test another set of 266 persons was examined. By completing the values of selected markers (orosomucoid, prealbumin, glycoprotein electrophoresis, erythrocyte sedimentation, age of the individual, and the number of smoked cigarettes) into the discrimination rule and by calculating the discrimination function, a sensitivity of 80.6% and a specificity of 75.6% were obtained. A comparative cytological examination of the same set revealed lower sensitivity (61.0%) but higher specificity (98.0%). These values were verified in a blind test, as the patients were admitted to the hospital. Sensitivity in lung cancer was found to be 83.9%; in nonmalignant diseases the respective value was 77.1%. This approach can be applied to individuals suspect of cancer, in secondary prevention and in individuals with a high risk of lung cancer.
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PMID:The contribution of discrimination analysis to the diagnostic decision in patients with lung carcinoma. 273 12

A significant increase in lung cancer was observed in a previous study on the mortality experience of a cohort of 1332 male workers employed between 1959 and 1980 in a resin manufacturing plant. Due to the limited exposure and an inadequate follow-up, it was not possible to make a thorough analysis of the potential association of this elevated risk with exposure to formaldehyde. The study was therefore continued and extended for a further six years (1980-1986), in order to overcome the limitations. Despite these attempts, however, there were still 219 workers whose specific exposure could not be identified. Lung cancer risk in the whole cohort (27,202 person-years) was equal to that of the local population (observed = 24; expected = 23.9). Among those definitely exposed to formaldehyde, 6 lung cancer cases were observed and 8.7 were expected, while those with non-specified exposure exhibited an increase risk (observed = 9; SMR = 211); they were mainly short-term workers employed at the beginning of operations. The previously suggested increase in haematologic neoplasms was confirmed (observed = 7; SMR = 143); the risk was highest among formaldehyde-exposed workers (observed = 3; SMR = 173). Five deaths due to primary liver cancer were observed, while 2.0 would have been expected from the local population rates (SMR = 244); the increased risk was fairly evenly distributed across the exposure categories (exposed to formaldehyde, SMR = 244; non-exposed to formaldehyde, SMR = 227; non-specified exposure = 287); however, all cases were first exposed at the age of 45 years or older. A noteworthy finding was a 50% increase in mortality from respiratory diseases. The increase was mainly apparent among those with longest and earliest exposure, employed in operations classified as involving exposures other than formaldehyde (observed = 9; SMR = 224). Overall, the results of this extended study do not provide sufficient grounds for associating work in formaldehyde resin production in this plant with increased carcinogenic risk; however, limitations in the individual exposure classification and suggestions of an increased risk for certain tumours preclude considering the study as negative. The numerous airborne irritative agents present in the plant environment appeared to have increased the risk of respiratory disease.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Carcinogenic risk for resin producers exposed to formaldehyde: extension of follow-up]. 277 Jun 16

This paper describes mortality in a cohort of 324 men exposed to chrysotile asbestos and coal tar pitch used in the manufacture of electrical conduit pipe from a mixture of newsprint, bentonite, and asbestos. One death in a factory worker was attributed to pleural mesothelioma, and long-term employees experienced an increased risk of lung cancer (Standardized Mortality Ratio (SMR) 221; six deaths) and non-malignant respiratory disease (SMR 215; four deaths). In a case-control analysis, men whose jobs involved adding asbestos to the mix of raw materials were found to have a risk of lung cancer sevenfold higher (lower 95% confidence limit: 2.3) than men who had never worked at this job. Exposure to coal tar pitch is presumed to be responsible for the death of one worker from squamous cell carcinoma of the scrotum.
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PMID:Mortality among employees of an Ontario factory that manufactured construction materials using chrysotile asbestos and coal tar pitch. 278 16

Risk factors for temporal changes in chronic respiratory disease mortality were evaluated from two studies conducted in Washington County, Maryland. The first examined the mortality of a private census population (greater than 35,000 whites) enumerated in 1963 over two subsequent time periods by age, sex, and initial smoking status. The second examined the 10-yr mortality of a subset of the 1963 census (884 men who had undergone spirometry). We observed a fall in age-adjusted mortality from all causes and from arteriosclerotic heart disease (ASHD), but an increase in COPD mortality. However, the increase in these chronic pulmonary deaths is essentially confined to persons who were smoking cigarettes at the beginning of the study period. Furthermore, while smokers showed an increased mortality risk for all causes, the excess mortality risk did not fall uniformly across cigarette smokers. It is a major observation of this study that all-cause and cardiovascular (as well as pulmonary) mortality are significantly more often found among subjects with ventilatory impairment (independent of smoking status). Reasons for the association of ASHD mortality with impaired forced expiration are discussed. Thus, men at increased risk for three (ASHD, lung cancer, COPD) of the five leading causes of death (three of eight for women) may be identified by spirometry. Perhaps it is time that this test was more generally applied.
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PMID:Respiratory risk factors and mortality: longitudinal studies in Washington County, Maryland. 278 61

A mortality study was carried out on a cohort of workers who were exposed to silica dust in a refractory brick plant. The cohort was divided into two groups: workers with and without silicosis, and their mortality was contrasted with the death rate of Genova from 1960 to 1979. Results show an increased risk for laryngeal tumors (3 obs., 0.44 exp., SMR = 682), nonmalignant respiratory disease (16 obs., 3.2 exp., SMR = 500), and cardiovascular diseases (19 obs., 11 exp., SMR = 173) among silicotics. The mortality rate for lung cancer showed an increase for the cohort of workers as a whole (11 obs., 6 exp., SMR = 183). The almost double overall mortality observed in silicotic subjects raises some doubts about the validity of other proportional mortality studies that showed no excesses for workers in these industries.
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PMID:A cohort study of workers employed in a refractory brick plant. 283 86

A cohort of 406 men employed before 1963 for at least one year in a vermiculite mine in Montana was followed up until July 1983. The vermiculite ore as fed to the mill contained 4-6% of amphibole fibre in the tremolite series. Vital status was established in all but one of the 406 and death certificates were obtained and coded for 163 of the 165 men who died. Compared with white men in the United States, the cohort experienced excess mortality from all causes (SMR 1.17), respiratory cancer (SMR 2.45), non-malignant respiratory disease (SMR 2.55), and accidents (SMR 2.14). Four deaths were from malignant mesothelioma (proportional mortality 2.4%). Compared with Montana death rates, the SMR for respiratory cancer was somewhat higher (3.03). Man-year analyses of respiratory cancer and estimated cumulative exposure gave a relation that did not depart significantly from linearity. The results of this and case-referent analyses indicate an increased risk of mortality from respiratory cancer in this cohort of about 1% for each fibre year of exposure. In relation to estimated exposure the mortality experienced by the cohort from both lung cancer and mesothelial tumours was higher than in chrysotile mining.
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PMID:Cohort study of mortality of vermiculite miners exposed to tremolite. 301 78


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