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Clinical and biochemical characteristics of disorders of the nervous system and the risks of common pathological syndromes in mercury production workers


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Abstract

The occupational factors are assigned one out of main parts to the development of occupational and comorbid pathology. At the same time the social aspects of labor relations act as the most important factors influencing on the workers' self-assessment of health status. Quantitative risk assessment of the common pathological syndromes has identified the excess of share ofpersons with a minimum level of risk over the medium and high. In the structure of risks of common pathological syndromes there are prevailed risks for disorders of the cardiovascular and nervous systems and borderline mental disorders, which is a response to the impact of not only industrial, but also psychosocialfactors. The results of self-assessment of health status and clinical examination of employees in conditions of mercury exposure show the similarity of the structure of diseases in these cases. In either event there are dominated diseases of the nervous and mental sphere, andfrom the comorbid pathology disorders of the cardiovascular system are prove to be important. Clinical manifestations of the mercury exposure, ranging from pre-clinical manifestations to marked changes from the side of the nervous system in toxic encephalopathy, are characterized by the presence of hyperkinetic syndrome. For pre-clinical and early forms of mercury poisoning there is also typical the presence of asthenic (emotional lability) disorders with autonomic dysfunction. Comorbidities in an internship working was manifested primarily by diseases of visual organs, cardiovascular system and diseases of the musculoskeletal system. Observed disorders of the nervous system and psycho-emotional sphere are caused, inter alia disturbances of the balance of catecholamines (the rise of norepinephrine in dynamics with a concomitant increase in the coefficient reflecting the degree of its metabolism: norepinephrine/epinephrine and norepinephrine / (adrenaline + Normetanephrine)) in the body.


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