Objective: To establish a rapid, simple, and accurate method for measuring selenium in whole blood by atomic fluorescence spectrometry.
Methods: The whole blood samples were treated by microwave digestion and the acids were dispelled. After that the samples were pretreated with 50% hydrochloric acid as a reducing agent. Then the content of selenium in the pretreated samples was measured by hydride generation atomic fluorescence spectrometry.
Results: The calibration curve for selenium is linear in the range of 0~60 μg/L (r=0.9999). The detection limit, relative standard deviation, and recovery rate were 0.133 μg/L, 1.22%~2.08%, and 96.5%~101.8%, respectively.
Conclusion: This method is simple, with less consumption of chemical reagents, less pollution, and enough accuracy and sensitivity for determination of selenium in whole blood samples.
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http://dx.doi.org/10.3760/cma.j.issn.1001-9391.2015.12.018 | DOI Listing |
Diabetol Metab Syndr
January 2025
School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, 7 Sassoon Road, Pok Fu Lam, Hong Kong, SAR, China.
Background: Epidemiological research on the association between heavy metals and congestive heart failure (CHF) in individuals with abnormal glucose metabolism is scarce. The study addresses this research gap by examining the link between exposure to heavy metals and the odds of CHF in a population with dysregulated glucose metabolism.
Method: This cross-sectional study includes 7326 patients with diabetes and prediabetes from the National Health and Nutrition Examination Survey from 2011 to 2018.
Biol Trace Elem Res
January 2025
Clinical Research Centre, University Medical Centre Ljubljana, Zaloška Cesta 2, 1000, Ljubljana, Slovenia.
Premature ovarian insufficiency (POI) is poorly understood, with causes identified in only 25% of cases. Emerging evidence suggests links between trace elements (TEs) and POI. This study is the first to compare concentrations of manganese (Mn), copper (Cu), zinc (Zn), selenium (Se), molybdenum (Mo), arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) across urine, serum, and whole blood in women with POI compared to healthy controls (HC), aiming to explore their distribution and potential associations with POI.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
August 2024
Department of Cardiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009.
Objectives: The high incidence of coronary artery heart disease (CHD) poses a significant burden and challenge to public health systems globally. Effective prevention and early diagnosis of CHD have become key strategies to alleviate this burden. This study aims to explore the application of advanced machine learning techniques to enhance the accuracy of early screening and risk assessment for CHD.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Gastroenterology of Shenzhen Second People's Hospital, Health Science Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518035, People's Republic of China.
Previous studies on the correlation between serum selenium and hypertension have yielded inconsistent results. Our previous analysis of participants from the National Health and Nutrition Examination Survey (NHANES) 2011-2018 indicated that elevated serum selenium concentrations were associated with an increased risk of metabolic abnormalities in obese individuals, with the primary effect being on blood pressure in males. The aim of this study was to further elucidate the relationship between serum selenium and the risk of hypertension in obese males.
View Article and Find Full Text PDFNutrients
December 2024
Peking University Arthritis Clinic and Research Center, Peking University People's Hospital, Xicheng, Beijing 100044, China.
Objectives: We aimed to explore the possible effects of Kashin-Beck disease (KBD) on the risk of sarcopenia and its possible interaction in the association between the risk of sarcopenia and element concentration.
Methods: This cross-sectional study was conducted among individuals 18-75 years old in Qamdo, a KBD-endemic area. All individuals received physical and radiological examinations before recruitment.
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