The objective of present study was to assess relationship between biomarkers of Manganese (Mn) and neuropsychological effects. The study was carried out on 27 welders and 31 ferroalloy smelters as Mn-exposed groups and 30 office workers as unexposed controls. Air Mn concentrations were determined according to NIOSH method 7300. The biological samples were prepared using microwave assisted acid ...

A 29-year old bisexual man was referred to the TB/HIV clinic in the Tuberculosis and HIV/AIDS Department, National Research Institute for Tuberculosis and Lung Diseases in Tehran, with a non-healing perianal ulcer and purulent discharge from the anus accompanied by episodes of fever, chills and generalized weakness. The patient’s complaint had begun 3 years previously and had been diagnosed as ...

It is shown how one can effectively use microdata in modelling the change over time in an aggregate (e.g. mean consumption expenditure) of a large and heterogeneous population. The starting point of our aggregation analysis is a specification of explanatory variables on the micro-level. Typically, some of these explanatory variables are observable and others are unobservable. Based on certain h...

background fumes released form welding activities are capable of initiating several acute and chronic respiratory effects. objectives the aim of the present study was to evaluate respiratory symptoms and spirometry parameters in welders of a steel industry. methods this cross-sectional study was conducted in a steel industry and involved 60 welders and 40 non-welders. a questionnaire was used t...

Several pathologic entities manifest as Parkinson syndrome (PS). The most common is the Lewy body disease also known as idiopathic PD.1 Most PD cases are sporadic and are believed to be caused by exogenous environmental factors.2,3 Autosomal dominant PD with a-synuclein gene mutation4 and autosomal recessive parkinsonism with parkin gene mutation5 have been reported in some families, but in gen...