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Man untersuchte die Morbidität der Schweißer. Man stellte ihr höheres Niveau in der Gruppe der Schweißer als in der Kontro11-gruppe fest. Man stellte ihre Abhängigkeit von dem Alter, der Arbeitspraxis, der Drogenanwendung und von dem Körpergewicht fest. In der Gruppe der Schweißer dominirten die Krankheiten des Atmungs-systems und berufliche Beschädigungen des Gehörs.
Am Beispiel der 206 untersuchten Schiffschweissern wurde festgestellt, dass die Krankheitsänderungen ihrer Bewegungsorgane von Alter, Arbeitszeit und Anfangsarbeitszeit abhängig sind. Der Autor hat auch eine prophilaktische Empfehlung bearbeitet.
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Background. Breast cancer is the most common malignant tumour in women in Poland. To reduce the risk of breast cancer, appropriate prevention is necessary. Numerous studies conducted over many years in Poland and throughout the world have demonstrated a significant effect of selenium on prevention of disease, including breast cancer in women. The following paper aims to present the literature on effects of selenium (Se) on prevention of breast cancer in women. Material and methods. Based on national and international literature, the paper presents information on the role of selenium (Se) in prevention of breast cancer in women. Results. Numerous studies conducted in research centres in Poland and abroad have shown that female patients with breast cancer and individuals with gastrointestinal cancer have significantly lower selenium concentration in their blood serum and whole blood, as well as significantly lower GSH - Px activity in plasma and red blood cells, compared to healthy women. Low selenium concentration may indicate an increased risk of breast cancer. Selenium is an essential co-factor in the production of antioxidant enzymes and may affect the development of cancer. Clinical trials which assessed selenium content in food showed that its supplementation reduced cancer mortality. Conclusions. Results of numerous national and prospective international studies indicate that low selenium intake and/or concentration in serum/plasma/nails is a high-risk marker of the majority of cancers, including breast cancer in women.
Background. Persistently high incidence of ‘diseases of affluence’ (including cancer) motivates numerous research teams to look for causes of morbidity, as well as to search for preventive methods and effective therapeutic measures. The paper aims to present the literature on effects of selenium (Se) on prevention of gastrointestinal and lung cancer. Material and methods. Based on national and international literature, the paper presents information on the role of selenium (Se) in prevention of cancer – with special consideration given to gastrointestinal and lung cancer. Results. The results of national and international research show the importance of selenium in prevention and treatment of cancerous diseases, including digestive tract cancer and lung cancer. Numerous studies have shown that the risk of cancer for people with low selenium levels is twice as high as for people with high levels of selenium in blood serum. The most prominent relationship between low selenium level in serum and cancer is observed in gastrointestinal cancer, lung cancer, breast cancer in women, and prostate cancer. Conclusions. Many clinical and experimental studies carried out nationally and internationally gathered evidence which indicate the vital role played by selenium in prevention and treatment of diseases – especially of cancer. It should be emphasised that the intake of selenium in amounts necessary for proper functioning - given numerous deficiencies (first in the soil, then in food products coming from selenium-deficient soil) – is merely the first step, as it has already been proven in numerous publications that carbohydrates (especially simple sugars, sweets, cakes, etc.) ‘destroy’ selenium in the human body.
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