Publications by authors named "Biyun Xia"

Introduction: Among the complications associated with transradial artery access, radial artery occlusion (RAO) is the most frequent and serious, limiting the reuse of the same radial artery for subsequent procedures and as a graft for coronary artery bypass grafting.

Objective: The objective of this project was to implement best practices to reduce the incidence of RAO, thereby enhancing the quality of patient care after transradial coronary angiography or intervention.

Methods: The project was conducted in cardiology department of the Huadong Hospital, Shanghai, China.

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Background: The purpose of this study was to investigate the illness uncertainty and its influencing factors in patients after heart stent implantation, and to explore the relationship between uncertainty of disease, self-management behavior of coronary heart disease and quality of life after stenting.

Methods: A cross-sectional study of 168 patients with cardiac stent implantation on illness uncertainty in a tertiary hospital in Shanghai. The General Information Questionnaire and the Mishel's Uncertainty in Illness Scale (MUIS) was used to measure the uncertainty of disease in patients after coronary stenting, and the Coronary Self-Management Scale (CSMS) and 36-item Short Form Health Survey Scale (SF-36) were collected, using Pearson's method for correlation analysis.

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We report an interesting case of coronary arteritis and periaortitis in a 62-year-old man with a history of biopsy-proven IgG4-related pulmonary disease. After 2 years of immune-suppressive therapy, the perivascular tissue surrounding all coronary arteries and the abdominal aorta was significantly attenuated, except that the luminal stenosis was aggravated to 70% in the left anterior descending coronary artery. Treatment with aspirin, atorvastatin, and ezetimibe was added.

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This work reports on a method for determination of lead(II) ion in environmental water samples. A Pb-specific DNAzyme immobilized on magnetic beads was coupled to rolling circle amplification (RCA) and pH meter-based readout. On addition of Pb ion, it induces partial cleavage of the DNAzyme on the magnetic beads.

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A new competitive-type immunosensing system based on gold nanoparticles toward catalytic reduction of 4-nitrophenol (4-NP) was developed for sensitive monitoring of antibiotic residue (chloramphenicol, CAP, used in this case) by using ultraviolet-visible (UV-vis) spectrometry. Gold nanoparticle (AuNP) with 16 nm in diameter was initially synthesized and functionalized with CAP-bovine serum albumin (CAP-BSA) conjugate, which were used as the competitor on monoclonal anti-CAP antibody-coated polystyrene microtiter plate (MTP). In the presence of target CAP, the labeled CAP-BSA on the AuNP competed with target CAP for the immobilized antibody on the MTP.

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