Publications by authors named "Xiang-shan Ma"
In this study, an outer surface modified polyvinylidene fluoride (PVDF) hollow fiber membrane (HF-PVDF-CNT) was prepared by coating with dopamine (PD) and multiwalled carbon nanotubes (CNTs), to solve the problems of the instability of pure CNT mats fabricated by filter coating methods and membrane fouling in wastewater treatment. The modified membrane was assessed and characterized by various methods, including studies of its top surface and cross-sectional morphology, wettability, functional groups and electrical conductivity. The CNT material stability was evaluated during backwashing.
View Article and Find Full Text PDFA system that combines an ion exchange membrane and ultrafiltration membrane (IEM-UF) to form a simultaneous separation and denitrification system was proposed for domestic sewage with a low carbon/nitrogen ratio. The removal of nitrogen and COD in the system was studied under a three phase operating condition. The characteristics of the microbial community in each reactor were analyzed using metagenomics.
View Article and Find Full Text PDFIn this study, a CEM-UF composite membrane with ammonia nitrogen enrichment and separation characteristics was combined with nitrification/denitrification to treat low C/N wastewater. The denitrification characteristics of low C/N wastewater at different flow ratios were investigated, and the structural characteristics of functional microbial communities in nitrifying and denitrifying activated sludge were analyzed by 16Sr DNA high-throughput sequencing. The results showed that influent TN was 60 mg·L, COD/TN was 2.
View Article and Find Full Text PDFArticle Synopsis
- The study aims to understand how eosinophilic granulocytes (EOS) affect anti-leukemic responses in chronic myelogenous leukemia (CML) patients.
- Elevated serum levels of IL-12 and IL-17 were observed in CML patients, especially in those with activated EOS, suggesting a link between these cytokines and the immune response.
- Activated EOS in the bone marrow can attack leukemic cells through mechanisms like adhesion and phagocytosis, and they express cytokines IL-12 and IL-17, indicating their potential role in combating leukemia.
[Pathological effects and clinical significance of eosinophils in autoimmune-related hematocytopenia].
Zhonghua Yi Xue Za Zhi
February 2013
Objective: To observe the pathological effects induced by eosinophils (EOS) in the process of cellular damage in immune-related hematocytopenia (IRH) and elucidate the immunologic mechanism and clinical significance of EOS.
Methods: Enzyme-linked immunosorbent assay (ELISA) was performed to determine the serum concentrations of interleukins (IL)-2, IL-4, IL-5, IL-6, IL-12 and IL-17 in 117 IRH patients from February 2008 to February 2012 in our hospital. Their quantity, activity, peroxidase (POX) and HLA-DR expression of EOS were observed and analyzed.
Objective: To observe the telomerase activity (TA) in bone marrow mononuclear cell (BMMNC) at pre-therapy and post-therapy in patients with immune related hematocytopenia and immune related pancytopenia (IRH/IRP) so as to explore the relationship between TA and disease process.
Methods: TA in BMMNC of 108 IRH/IRP patients was detected with telomeric repeat amplification protocol (TRAP)-PCR-ELISA. The expressions of anti-human immunoglobulin IgG, FcγII receptor (FcγIIR), mannose receptor (MR) and interleukin 17A (IL-17A) located on membrane surface were observed by immunofluorescence (IF).