As the concentration of methylmercury (MeHg) in the environment is insignificant, hair can be used as a suitable matrix to estimate endogenous MeHg exposure. Avalidated analytical method with AMA 254 spectrometer was used for the determination of inorganic mercury and methylmercury species in the hair of dentists, workers in fish industry and professionally non-exposed adults. ANOVA and QC Expe...

In recent years, landfill and incineration of waste is considered a new mercury pollution, which is paid widespread attention by domestic and foreign scientists. This paper studies mercury pollution Characteristics in the soil around Landfill taking landfill in Huainan City for an example and using AMA 254 Advanced Mercury Analyzer produced by US LECO Company. The result shows that: mercury con...

Removal of mercury from municipal wastewater using a constructed wetland was studied. Wastewater, wetland plant, and sediment samples were analyzed using an advanced mercury analyzer AMA-254. Average concentrations of total mercury in inflow and outflow water were 0.157 and 0.057 μg L−1, respectively. Significant fraction of mercury (38.2 %) was removed from wastewater during pretreatment. Merc...

Antimycin A (AMA) inhibits the mitochondrial electron transport between cytochromes b and c. However, the relationship between AMA and lung cancer cells is poorly understood. In this study, we investigated the involvement of reactive oxygen species (ROS) and glutathione (GSH) in AMA-treated lung cancer Calu-6 cell death. Treatment with AMA reduced cell viability in a dose-dependent manner for 7...

Military activities have been conducted on land and at sea. Both during conflicts and in peace time, some regions served as a military training ground which included firing positions and bunkers. Mercury fulminate has been used in ammunition primers and detonators. Certain amount of ammunition was dumped into the Baltic Sea after the Second World War. Because of corroded containers, mercury can...

BACKGROUND We examined patients who showed laboratory and histological evidence of primary biliary cirrhosis (PBC) in the absence of antimitochondrial antibody (AMA) to elucidate the characteristics of AMA negative PBC. METHODS From a total of 5,805 patients with symptomatic PBC, 2,419 cases (41.7%) were selected in the present study, who were diagnosed using the following criterion; chronic ...

Objective Supraventricular arrhythmias are commonly detected in patients with anti-mitochondrial antibody M2 (AMA-M2)-associated myopathy. However, the prevalence of supraventricular arrhythmias in unselected AMA-M2-positive patients and the impact of AMA-M2 on supraventricular arrhythmias have yet to be fully investigated. Methods We analyzed 384 patients (116 men; age, 60 [48-69] years), who ...

OBJECTIVES Antimitochondrial antibodies (AMA) are a sensitive and specific marker for primary biliary cirrhosis (PBC). AMAs are present in 95% of patients with PBC. However, 5% do not have AMAs and data on these patients is scarce. We aim to evaluate the long-term outcomes of patients with AMA negative PBC. METHODS A retrospective chart review of 71 AMA negative PBC patients. Disease presenta...

OBJECTIVE We compared the readmission rates and the pattern of readmission among patients discharged against medical advice (AMA) to control patients discharged with approval over a one-year follow-up period. METHODS A retrospective matched-cohort study of 656 patients(328 were discharged AMA) who were followed for one year after their initial hospitalization at an urban university-affiliated...