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In this study, a simple, green, and low-cost room temperature synthesis of broccoli-like silver nanoflowers (AgNF) with a particle size of about 300-500 nm was developed using plant-derived caffeic acid as a reducing agent and polyvinylpyrrolidone as a dispersant under ultrasound assistance. The flower clusters covered by small nanocrystals of 20-50 nm significantly enhance the electromagnetic field signals. AgNF was deposited on the surface of silicon wafers as a surface-enhanced Raman spectroscopy sensor for the detection of probe molecules such as rhodamine 6G (R6G) and malachite green with high sensitivity, homogeneity, and reproducibility. AgNF was deposited on cotton fabrics in the form of composites to catalyze the degradation of dye pollutants such as R6G, MG, and methyl orange in the presence of sodium borohydride. 0.1 g of AgNF/cotton fabric could assist 15 mmol/L NaBH4 to achieve over 90% degradation of various dyes as well as a high concentration of dyes in 12 min with good reusability and recyclability. The AgNF synthesized in this work can not only monitor the type and amounts of pollutants (dyes) in wastewater but also catalyze the rapid degradation of dyes, which is expected to be valuable for industrial applications.
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Prostate cancer (PCa) is an extremely common genitourinary malignancy among elderly men. Many evidence have shown the efficacy of curcumin (CUR) in inhibiting the progression of PCa. However, the pharmacological function of CUR in PCa is still not quite clear. In this research, CUR was found to suppress the proliferation and enhance the apoptotic rate in in vitro PCa cell models in a dose- and time-dependent manner. In a xenograft animal model, the administration of CUR contributed to a significant decrease in the growth of the xenograft tumor induced by the transplanted PC-3 cells. Ubiquitin-conjugating enzyme E2 C is implicated in the modulation of multiple types of cancers. In humans, the expression levels of UBE2C are significantly higher in PCa versus benign prostatic hyperplasia. Treatment with CUR decreased the expression of UBE2C, whereas it increased miR-483-3p expression. In contrast with the control mice, the CUR-treated mice showed a significant reduction in UBE2C and Ki-67 in PCa cells. The capability of proliferation, migration, and invasion of PCa cells was inhibited by the knockdown of UBE2C mediated by siRNA. Furthermore, dual luciferase reporter gene assay indicated the binding of miR-483-3p to UBE2C. In summary, CUR exerts its antitumor effects through regulation of the miR-483-3p/UBE2C axis by decreasing UBE2C and increasing miR-483-3p. The findings may also provide new molecular markers for PCa diagnosis and treatment.
Subject(s)
Curcumin , MicroRNAs , Prostatic Neoplasms , Male , Humans , Animals , Mice , Aged , MicroRNAs/genetics , MicroRNAs/metabolism , Curcumin/pharmacology , Curcumin/therapeutic use , Ubiquitin-Conjugating Enzymes/genetics , Ubiquitin-Conjugating Enzymes/metabolism , Cell Line, Tumor , Apoptosis/genetics , Prostatic Neoplasms/drug therapy , Prostatic Neoplasms/genetics , Prostatic Neoplasms/pathology , Disease Models, Animal , Cell Proliferation/genetics , Cell Movement/genetics , Gene Expression Regulation, NeoplasticABSTRACT
BACKGROUND: Chemotherapy, whilst treating tumours, can also lead to numerous adverse reactions such as nausea and vomiting, fatigue and kidney toxicity, threatening the physical and mental health of patients. Simultaneously, misuse of chemotherapeutic drugs can seriously endanger patients' lives. Therefore, to maintain the safety of chemotherapy for cancer patients and to reduce the incidence of adverse reactions to chemotherapy, many guidelines state that a comprehensive assessment of the cancer patient should be conducted and documented before chemotherapy. This recommended procedure, however, has yet to be extensively embraced in Chinese hospitals. As such, this study aimed to standardise the content of pre-chemotherapy assessment for cancer patients in hospitals and to improve nurses' adherence to pre-chemotherapy assessment of cancer patients by conducting a national multi-site evidence implementation in China, hence protecting the safety of cancer patients undergoing chemotherapy and reducing the incidence of adverse reactions to chemotherapy in patients. METHODS: The national multi-site evidence implementation project was launched by a JBI Centre of Excellence in China and conducted using the JBI approach to evidence implementation. A pre- and post-audit approach was used to evaluate the effectiveness of the project. This project had seven phases: training, planning, baseline audit, evidence implementation, two rounds of follow-up audits (3 and 9 months after evidence implementation, respectively) and sustainability assessment. A live online broadcast allowed all participating hospitals to come together to provide a summary and feedback on the implementation of the project. RESULTS: Seventy-four hospitals from 32 cities in China participated in the project, four withdrew during the project's implementation, and 70 hospitals completed the project. The pre-and post-audit showed a significant improvement in the compliance rate of nurses performing pre-chemotherapy assessments for cancer patients. Patient satisfaction and chemotherapy safety were also improved through the project's implementation, and the participating nurses' enthusiasm and belief in implementing evidence into practice was increased. CONCLUSION: The study demonstrated the feasibility of academic centres working with hospitals to promote the dissemination of evidence in clinical practice to accelerate knowledge translation. Further research is needed on the effectiveness of cross-regional and cross-organisational collaborations to facilitate evidence dissemination.
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MAIN CONCLUSION: Enhanced secretion of Na+ and Cl- in leaf glands and leaf vacuolar sequestration of Na+ or root retention of Cl-, combined with K+ retention, contribute to the improved salt tolerance of tetraploid recretohalophyte P. auriculata. Salt stress is one of the major abiotic factors threatening plant growth and development, and polyploids generally exhibit higher salt stress resistance than diploids. In recretohalophytes, which secrete ions from the salt gland in leaf epidermal cells, the effects of polyploidization on ion homeostasis and secretion remain unknown. In this study, we compared the morphology, physiology, and ion homeostasis regulation of diploid and autotetraploid accessions of the recretohalophyte Plumbago auriculata Lam. after treatment with 300 mM NaCl for 0, 2, 4, 6, and 8 days. The results showed that salt stress altered the morphology, photosynthetic efficiency, and chloroplast structure of diploid P. auriculata to a greater extent than those of its tetraploid counterpart. Moreover, the contents of organic osmoregulatory substances (proline and soluble sugars) were significantly higher in the tetraploid than in the diploid, while those of H2O2 and malondialdehyde (MDA) were significantly lower. Analysis of ion homeostasis revealed that the tetraploid cytotype accumulated more Na+ in stems and leaves and more Cl- in roots but less K+ loss in roots compared with diploid P. auriculata. Additionally, the rate of Na+ and Cl- secretion from the leaf surface was higher, while that of K+, Mg2+, and Ca2+ secretion was lower in tetraploid plants. X-ray microanalysis of mesophyll cells revealed that Na+ mainly accumulated in different cellular compartments in the tetraploid (vacuole) and diploid (cytoplasm) plants. Our results suggest that polyploid recretohalophytes require the ability to sequester Na+ and Cl-(via accumulation in leaf cell vacuoles or unloading by roots) and selectively secrete these ions (through salt glands) together with the ability to prevent K+ loss (by roots). This mechanism required to maintain K+/Na+ homeostasis in polyploid recretohalophytes under high salinity provides new insights in the improved maintenance of ion homeostasis in polyploids under salt stress.
Subject(s)
Plumbaginaceae , Tetraploidy , Plumbaginaceae/genetics , Salt Tolerance , Hydrogen Peroxide , Sodium , Polyploidy , Plant Leaves/geneticsABSTRACT
BACKGROUND: To explore whether emotional expressivity and the patterns of language use could predict benefits from expressive writing (EW) of breast cancer (BC) patients in a culture that strongly discourages emotional disclosure. METHODS: Data were obtained from a recent trial in which we compared the health outcomes between a prolonged EW group (12 sessions) and a standard EW group (four sessions) (n = 56 per group) of BC patients receiving chemotherapy. The Chinese texts were tokenized using the THU Lexical Analyser for Chinese. Then, LIWC2015 was used to quantify positive and negative affect word use. RESULTS: Our first hypothesis that BC patients with higher levels of emotional expressivity tended to use higher levels of positive and negative affect words in texts was not supported (r = 0.067, p = 0.549 and r = 0.065, p = 0.559, respectively). The level of emotional expressivity has a significant effect on the quality of life (QOL), and those who used more positive or fewer negative affective words in texts had a better QOL (all p < 0.05). However, no significant difference was identified in physical and psychological well-being (all p > 0.05). Furthermore, the patterns of affective word use during EW did not mediate the effects of emotional expressivity on health outcomes (all p > 0.05). CONCLUSIONS: Our findings suggest that the level of emotional expressivity and the pattern of affective word use could be factors that may moderate the effects of EW on QOL, which may help clinicians identify the individuals most likely to benefit from such writing exercises in China.
Subject(s)
Breast Neoplasms , Emotions , Writing , Breast Neoplasms/drug therapy , Breast Neoplasms/psychology , China , Quality of Life , Treatment Outcome , Affect , Humans , Female , Adult , Middle Aged , Aged , Neoplasm StagingABSTRACT
Elemental sulfur (S0) is widely utilized in environmental pollution control, while its low bioavailability has become a bottleneck for S0-based biotechnologies. Biogenic sulfur (bio-S0) has been demonstrated to have superior bioavailability, while little is known about its mechanisms thus far. This study investigated the bioavailability and relevant properties of bio-S0 based on the denitrifying activity of Thiobacillus denitrificans with chemical sulfur (chem-S0) as the control. It was found that the conversion rate and removal efficiency of nitrate in the bio-S0 system were 2.23 and 2.04 times those of the chem-S0 system. Bio-S0 was not pure orthorhombic sulfur [S: 96.88 ± 0.25% (w/w)]. Trace organic substances detected on the bio-S0 surface were revealed to contribute to its hydrophilicity, resulting in better dispersibility in the aqueous liquid. In addition, the adhesion force of T. denitrificans on bio-S0 was 1.54 times that of chem-S0, endowing a higher bacterial adhesion efficiency on the sulfur particle. The weaker intermolecular binding force due to the low crystallinity of bio-S0 led to enhanced cellular uptake by attached bacteria. The mechanisms for the superior bioavailability of bio-S0 were further proposed. This study provides a comprehensive view of the superior bioavailability of bio-S0 and is beneficial to developing high-quality sulfur resources.
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BACKGROUND: Given the rapid development of social media, effective extraction and analysis of the contents of social media for health care have attracted widespread attention from health care providers. As far as we know, most of the reviews focus on the application of social media, and there is a lack of reviews that integrate the methods for analyzing social media information for health care. OBJECTIVE: This scoping review aims to answer the following 4 questions: (1) What types of research have been used to investigate social media for health care, (2) what methods have been used to analyze the existing health information on social media, (3) what indicators should be applied to collect and evaluate the characteristics of methods for analyzing the contents of social media for health care, and (4) what are the current problems and development directions of methods used to analyze the contents of social media for health care? METHODS: A scoping review following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines was conducted. We searched PubMed, the Web of Science, EMBASE, the Cumulative Index to Nursing and Allied Health Literature, and the Cochrane Library for the period from 2010 to May 2023 for primary studies focusing on social media and health care. Two independent reviewers screened eligible studies against inclusion criteria. A narrative synthesis of the included studies was conducted. RESULTS: Of 16,161 identified citations, 134 (0.8%) studies were included in this review. These included 67 (50.0%) qualitative designs, 43 (32.1%) quantitative designs, and 24 (17.9%) mixed methods designs. The applied research methods were classified based on the following aspects: (1) manual analysis methods (content analysis methodology, grounded theory, ethnography, classification analysis, thematic analysis, and scoring tables) and computer-aided analysis methods (latent Dirichlet allocation, support vector machine, probabilistic clustering, image analysis, topic modeling, sentiment analysis, and other natural language processing technologies), (2) categories of research contents, and (3) health care areas (health practice, health services, and health education). CONCLUSIONS: Based on an extensive literature review, we investigated the methods for analyzing the contents of social media for health care to determine the main applications, differences, trends, and existing problems. We also discussed the implications for the future. Traditional content analysis is still the mainstream method for analyzing social media content, and future research may be combined with big data research. With the progress of computers, mobile phones, smartwatches, and other smart devices, social media information sources will become more diversified. Future research can combine new sources, such as pictures, videos, and physiological signals, with online social networking to adapt to the development trend of the internet. More medical information talents need to be trained in the future to better solve the problem of network information analysis. Overall, this scoping review can be useful for a large audience that includes researchers entering the field.
Subject(s)
Cell Phone , Social Media , Humans , Delivery of Health Care/methods , Health Education , Health ServicesABSTRACT
BACKGROUND: The innovative method of sentiment analysis based on an emotional lexicon shows prominent advantages in capturing emotional information, such as individual attitudes, experiences, and needs, which provides a new perspective and method for emotion recognition and management for patients with breast cancer (BC). However, at present, sentiment analysis in the field of BC is limited, and there is no emotional lexicon for this field. Therefore, it is necessary to construct an emotional lexicon that conforms to the characteristics of patients with BC so as to provide a new tool for accurate identification and analysis of the patients' emotions and a new method for their personalized emotion management. OBJECTIVE: This study aimed to construct an emotional lexicon of patients with BC. METHODS: Emotional words were obtained by merging the words in 2 general sentiment lexicons, the Chinese Linguistic Inquiry and Word Count (C-LIWC) and HowNet, and the words in text corpora acquired from patients with BC via Weibo, semistructured interviews, and expressive writing. The lexicon was constructed using manual annotation and classification under the guidance of Russell's valence-arousal space. Ekman's basic emotional categories, Lazarus' cognitive appraisal theory of emotion, and a qualitative text analysis based on the text corpora of patients with BC were combined to determine the fine-grained emotional categories of the lexicon we constructed. Precision, recall, and the F1-score were used to evaluate the lexicon's performance. RESULTS: The text corpora collected from patients in different stages of BC included 150 written materials, 17 interviews, and 6689 original posts and comments from Weibo, with a total of 1,923,593 Chinese characters. The emotional lexicon of patients with BC contained 9357 words and covered 8 fine-grained emotional categories: joy, anger, sadness, fear, disgust, surprise, somatic symptoms, and BC terminology. Experimental results showed that precision, recall, and the F1-score of positive emotional words were 98.42%, 99.73%, and 99.07%, respectively, and those of negative emotional words were 99.73%, 98.38%, and 99.05%, respectively, which all significantly outperformed the C-LIWC and HowNet. CONCLUSIONS: The emotional lexicon with fine-grained emotional categories conforms to the characteristics of patients with BC. Its performance related to identifying and classifying domain-specific emotional words in BC is better compared to the C-LIWC and HowNet. This lexicon not only provides a new tool for sentiment analysis in the field of BC but also provides a new perspective for recognizing the specific emotional state and needs of patients with BC and formulating tailored emotional management plans.
Subject(s)
Breast Neoplasms , Humans , Female , Sentiment Analysis , Emotions , Fear , SadnessABSTRACT
Quadrotor unmanned aerial vehicles (UAVs) often encounter intricate environmental and dynamic limitations in real-world applications, underscoring the significance of proficient trajectory planning for ensuring both safety and efficiency during flights. To tackle this challenge, we introduce an innovative approach that harmonizes sophisticated environmental insights with the dynamic state of a UAV within a potential field framework. Our proposition entails a quadrotor trajectory planner grounded in a kinodynamic gene regulation network potential field. The pivotal contribution of this study lies in the amalgamation of environmental perceptions and kinodynamic constraints within a newly devised gene regulation network (GRN) potential field. By enhancing the gene regulation network model, the potential field becomes adaptable to the UAV's dynamic conditions and its surroundings, thereby extending the GRN into a kinodynamic GRN (K-GRN). The trajectory planner excels at charting courses that guide the quadrotor UAV through intricate environments while taking dynamic constraints into account. The amalgamation of environmental insights and kinodynamic constraints within the potential field framework bolsters the adaptability and stability of the generated trajectories. Empirical results substantiate the efficacy of our proposed methodology.
Subject(s)
Unmanned Aerial DevicesABSTRACT
MAIN CONCLUSION: The difference in leaf color among the three cultivars of A. bettzickiana is due to different chloroplast morphology and chlorophyll-to-anthocyanin ratios. Alternanthera bettzickiana is one of the most important ornamental plants in modern flower beds because of its colorful leaves. The present study examined the mechanism of leaf color formation in A. bettzickiana. Three cultivars of A. bettzickiana (red, green, and mixed red and green) were selected for comprehensive analyses of leaf color formation by examining cellular and subcellular structures and pigment biosynthesis and metabolism. The difference in leaf colors between the three cultivars of A. bettzickiana was due to different chlorophyll-to-anthocyanin ratios. A. bettzickiana 'Green' showed very low expression of CHS, F3H, and DFR, the key genes of the anthocyanin biosynthesis pathway, and a low anthocyanin content but had mature chloroplasts and a green color. A. bettzickiana 'Red' exhibited a low chlorophyll content and deformed chloroplasts but a high cyanidin content and, thus, a red color. A. bettzickiana 'Variegated' presented high anthocyanin and chlorophyll contents and exhibited red and green variegation, indicating a balance between coloration and photosynthetic efficiency. These data provide a good explanation for the coloration of different cultivars of A. bettzickiana and an important reference for better explaining the color formation mechanisms of plant leaves.
Subject(s)
Gene Expression Regulation, Plant , Transcriptome , Anthocyanins , Chlorophyll , Color , Gene Expression Profiling , Pigmentation , Plant Leaves/geneticsABSTRACT
RESEARCH HIGHLIGHTSMG infection causes a persistent inflammatory response by increasing the expression of immune response genes.The ERK-MLCK signalling pathway activated by MG infection regulates tight junction proteins in the tracheal mucosa.These data provide a basis for future prevention and treatment studies to control MG infection.
Subject(s)
Mycoplasma Infections , Mycoplasma gallisepticum , Poultry Diseases , Animals , Chickens , Mucous Membrane , Mycoplasma Infections/veterinaryABSTRACT
Prostate cancer (PCa) is a common urinary malignancy. The lack of specific and sensitive biomarkers for the early diagnosis and prognosis of PCa makes it important to seek alternatives. R software was used to analyze the PCa expression profile from data sets in Gene Expression Omnibus. Core differential genes were identified by String and Cytoscape and further validated by Gene Expression Profiling Interactive Analysis (GEPIA) and The Human Protein Atlas (HPA). Gene Ontology analysis was done in the DIVID database and visualization analysis was conducted by Hiplot. Pathway enrichment was analyzed by IPA. To identify potential competitive endogenous RNAs (ceRNA) networks, the experimentally validated microRNA-target interactions database (miRTarBase), The Encyclopedia of RNA Interactomes (StarBase), lncBase, and GEPIA were used. The lncLocator was utilized to perform subcellular localization of long noncoding RNAs (lncRNAs). Both miRTarBase and StarBase were used to find the binding site of mRNAs-miRNAs and miRNAs-lncRNAs. Visualization of the ceRNA network was performed with Cytoscape. Nine genes closely related to the diagnosis and prognosis of PCa were obtained, including four identified biomarkers by HPA, CENPF, TPX2, TK1, and CCNB1, and five novel PCa biomarkers, RRM2, UBE2C, TOP2A, BIRC5, and ZWINT. Pathway analysis indicated that PCa carcinogenesis was highly correlated with liver fibrosis pathways, ILK signaling, and NRF2-mediated oxidative stress response. Two sets of ceRNA networks, BIRC5/hsa-miR-218-5p/NEAT1 and UBE2C/hsa-miR-483-3p/NEAT1 were found to be novel biomarkers for the identification of PCa. The quantitative real-time polymerase chain reaction results verified that UBE2C, BIRC5, and NEAT1 were upregulated and hsa-miR-218-5p and hsa-miR-483-3p were downregulated in human PCa cells compared with normal prostate epithelial cells. The novel identified biomarkers in this study would be valuable for the diagnosis and prognosis of PCa.
Subject(s)
MicroRNAs , Prostatic Neoplasms , RNA, Long Noncoding , Biomarkers , Humans , Male , MicroRNAs/genetics , MicroRNAs/metabolism , NF-E2-Related Factor 2 , Prostate/metabolism , Prostatic Neoplasms/diagnosis , Prostatic Neoplasms/genetics , RNA, Long Noncoding/genetics , RNA, Long Noncoding/metabolismABSTRACT
Anammox granular sludge processes are an attractive and efficient biotechnology in the field of wastewater treatment. In this study, the stratification patterns of anammox granular sludge bed (GSB) at steady states were illustrated and its relationship to microbial activity and community were systematically investigated under different nitrogen loading rates (NLRs). Morphological observation and quantitive particle size distribution analysis demonstrated that the GSB at low NLR was mainly composed of micro and fine granules with a big difference between bottom and top sludge layers. But at high NLR, the volumetric mean diameter (VMD) of GSB increased with the size distribution width (Span) declined forming a more homogeneous and coarse granules population. The particle size distribution parameters of GSB could be fast characterized by the optical lightness (L*) parameter (r = -0.771, p < 0.01, n = 16) and held a significant correlation with the nitrogen removal rate (NRR) of anammox system (r > 0.9, p < 0.05). The microbial spatial distribution patterns of different sludge layers were further investigated by high-throughput sequencing. The microbial community α-diversity index and microbial abundance matrix proved that the community structure tend to coverage at high NLR. Significant difference of the relative abundance of microbial community was detected under different NLRs. The VMD of GSB held a significant correlation with the relative abundance of AnAOB (r = 0.556, p < 0.01, n = 16) and other common accompanying bacteria (Denitratisoma and Chloroflexi). This study proved that the apparent particle size distribution patterns of GSB could be a potential auxiliary indicator to reflect the microbial activity and community, which can facilitate the innovative process monitor of anammox system based on visual features.
Subject(s)
Bioreactors , Sewage , Anaerobic Ammonia Oxidation , Anaerobiosis , Bioreactors/microbiology , Nitrogen , Oxidation-Reduction , Particle Size , Sewage/chemistryABSTRACT
AIMS: To examine patient-caregiver concordances about psychological distress among Chinese patients with breast cancer undergoing chemotherapy and identify factors related to concordance among patients and family caregivers. DESIGN: Cross-sectional study. METHODS: From October 2019 to June 2020, 137 patient-caregiver dyads were enrolled. Sociodemographic information, the distress thermometer (including the problem list), the Distress Disclosure Index and the Family Adaptability and Cohesion Evaluation Scale were used to collect data. Data were analysed using intraclass correlation coefficients (ICC), kappa statistics, two related samples test, chi-square tests and/or Fisher's exact tests and binary logistic regression. RESULTS: Overall, fair agreement was identified between patients' and caregivers' reports (intraclass correlation coefficients [ICC] = .528). Patients reported significantly higher psychological distress scores than paired caregiver reports. Lower psychological distress concordance was found among patients with comorbidities (odds ratio [OR], 0.352; 95% confidence interval [CI], 0.155-0.798) and lower levels of self-disclosure (OR, 0.402; 95% CI, 0.186-0.868). CONCLUSION: There was relatively low concordance between patients' reports and caregivers' perceptions of psychological distress. Family caregivers tended to underestimate patients' psychological distress. A comorbid condition and lower levels of self-disclosure contributed to this bias. IMPACT: Having an awareness of the incongruence between patient and caregiver may help healthcare providers better interpret caregiver assessments. Healthcare providers should reinforce patient-caregiver dyadic psychosocial education to improve concordance. More psychological care and substantial emotional support should be provided for Chinese breast cancer patients undergoing chemotherapy by family caregivers and healthcare providers.
Subject(s)
Breast Neoplasms , Neoplasms , Psychological Distress , Breast Neoplasms/drug therapy , Caregivers , China , Cross-Sectional Studies , Female , Humans , Quality of Life , Stress, PsychologicalABSTRACT
Veterinary antibiotics in swine wastewater has drawn great public attention. The removal processes of sulfamethizole (SMZ), enrofloxacin (ENR) and chlortetracycline (CTC) were investigated in the high-rate anaerobic process. The continuous experiments demonstrated that in 3 L working volume and with the organic loading rate 5 kg/(m3·d) rised to 20 kg/(m3·d), the average removal efficiencies of the high-rate anaerobic bioreactor for SMZ, ENR and CTC were 0, 54 and 100%, respectively. By using fixed-bed adsorption models, the saturation time of SMZ, ENR and CTC were 4 hydraulic retention time (HRT) (24 h), 8 HRT (48 h) and 372 HRT (2,232 h). In the batch experiments, the adsorption and biodegradation characteristics of anaerobic granular sludge were determined. In the high-rate anaerobic bioreactor, SMZ removal process mainly relied on the adsorption but it was very weak; ENR removal process was based on the adsorption and biodegradation; CTC removal process was based to a large extent on the adsorption because of the big capacity of AnGS. These results were helpful to create a rational basis for designing more suitable treatment systems as feasible barriers to the release of antibiotics into the environment.
Subject(s)
Chlortetracycline , Sewage , Anaerobiosis , Animals , Anti-Bacterial Agents , Bioreactors , Enrofloxacin , Sulfamethizole , Swine , Waste Disposal, Fluid/methods , WastewaterABSTRACT
Diabetic nephropathy (DN) is the major cause of kidney related diseases in patients induced by high glucose (HG) affecting around 40% of type 1 and 2 diabetic patients. It is characterized by excessive inflammation inducing factors, reactive oxygen species (ROS) overproduction, and potential epigenomic related changes. Fucoxanthin (FX), a carotenoid found in brown seaweed, has a structure which includes an allenic bond and a 5,6-monoepoxide in the molecule, with strong antioxidant and anti-inflammatory activity. However, understanding of the impact of FX on DN was lacking. In this study we tested the early effects of high glucose (HG) on mouse mesangial kidney Mes13 cells, a potential in vitro cell culture model of DN. Our results show that HG induced oxidative stress on kidney mesangial Mes13 cells, while FX treatment attenuates the oxidative stress by decreasing the ROS, demonstrated by flow cytometry. Next, we utilized next-generation sequencing (NGS) to profile the HG-induced early epigenomic and transcriptomic changes in this in vitro DN model and the protective effects of FX. Differentially expressed genes (DEGs) and differentially methylated regions (DMRs) were analyzed using R software in HG and FX treated groups. Differential regulation of signaling pathways was studied using Reactome Pathway Analysis in the comparison. DEG analysis shows that novel biomarkers with specific pathways, including interleukin regulation, Toll-like receptor pathway, and PKA phosphorylation pathways, were found to be modulated by the FX treatment. TGF ß 1i1 (TGFB 1i1), MAP-3-kinase-13(MAP3K13) involved in crucial cellular processes including glucose metabolism, phosphodiesterase regulation was methylated in HG, which was demethylated with FX treatment. Integrated transcriptomic and CpG methylome analysis of DEGs and DMRs revealed that genes like adenylate cyclase (Adcy7), calponin 1 (CNN1), potassium voltage-gated channel interacting protein 2 (KCNIP2), phosphatidylinositol-4-phosphate 5-kinase type 1 ß (PIP5K1B), and transmembrane protein with EGF-like and two follistatin-like domains 1 (TMEFF1), which were modulated by FX in HG-exposed Mes13 cells, potentially modulate ion channel transport and glucose metabolism. In summary, our current study shows that novel early epigenomic and transcriptomic biomarkers were altered during the disease progression of HG-induced DN and that FX modified these alterations potentially contributing to the protective effects of mesangial cells from the HG-induced oxidative stress and damage.
Subject(s)
Carotenoids/pharmacology , Glucose/antagonists & inhibitors , Kidney/drug effects , Mesangial Cells/drug effects , Protective Agents/pharmacology , Xanthophylls/pharmacology , Animals , Carotenoids/chemistry , Cell Survival/drug effects , Cells, Cultured , Dose-Response Relationship, Drug , Epigenesis, Genetic/drug effects , Epigenesis, Genetic/genetics , Glucose/metabolism , Kidney/metabolism , Mesangial Cells/metabolism , Mice , Molecular Structure , Oxidative Stress/drug effects , Protective Agents/chemistry , Reactive Oxygen Species/analysis , Transcriptome , Xanthophylls/chemistryABSTRACT
Oxidative stress, an imbalance between reactive oxygen species and antioxidants, has been seen in the pathological states of many disorders such as ischemic diseases and cancers. Many natural compounds (NCs) have long been recognized to ameliorate oxidative stress due to their inherent antioxidant activities. The modulation of oxidative stress by NCs via activating the Nrf2 signaling pathway is summarized in the review. Three NCs, ursolic acid, betulinic acid, and curcumin, and the mechanisms of their cytoprotective effects are investigated in myocardial ischemia, cerebral ischemia, skin cancer, and prostate cancer. To promote the therapeutic performance of NCs with poor water solubility, the formulation approach, such as the nano drug delivery system, is elaborated as well in this review.
Subject(s)
Brain Ischemia , Myocardial Ischemia , NF-E2-Related Factor 2/metabolism , Neoplasm Proteins/metabolism , Oxidative Stress/drug effects , Phytochemicals/therapeutic use , Prostatic Neoplasms , Skin Neoplasms , Brain Ischemia/drug therapy , Humans , Male , Myocardial Ischemia/drug therapy , Myocardial Ischemia/metabolism , Prostatic Neoplasms/drug therapy , Prostatic Neoplasms/metabolism , Skin Neoplasms/drug therapy , Skin Neoplasms/metabolismABSTRACT
PURPOSE: Breast cancer-related lymphedema (BCRL) self-management plays an important role in the lymphedema therapy. However, clinical knowledge of BCRL self-management remains minimal. This study aims to explore the experience surrounding lymphedema self-management from the perspectives of BCRL patients and healthcare professionals. METHODS: Semi-structured interviews were implemented with BCRL patients and healthcare professionals. Audio-recordings of interviews were transcribed verbatim and thematic analysis was undertaken to analyze the interview data. RESULTS: Thirteen BCRL patients (aged 34-65 years) and nine healthcare professionals (2 physicians, 4 nurses, and 3 lymphedema therapists) were interviewed. Five themes emerged from interviews with participants: knowledge-attitude-practice surrounding lymphedema self-management, emotional reactions towards lymphedema self-management, factors influencing lymphedema self-management, support needs for lymphedema self-management, healthcare professional support of BCRL self-management. CONCLUSIONS: This study showed knowledge-attitude-practice, feelings, influencing factors, roles, dilemmas, and support needs regarding BCRL self-management. Greater effort is required for healthcare professionals to strengthen the lymphedema self-management. Providing more educational program and holistic support, and strengthening the facilitators and controlling the barriers might benefit promoting lymphedema self-management. Likewise, healthcare professionals need adequate training to be able to meet patients' self-management support needs.
Subject(s)
Breast Cancer Lymphedema , Breast Neoplasms , Lymphedema , Breast Neoplasms/complications , Breast Neoplasms/therapy , Delivery of Health Care , Female , Health Personnel , Humans , Lymphedema/etiology , Lymphedema/therapyABSTRACT
PURPOSE: This study aims to evaluate the effects of prolonged expressive writing on health outcomes in breast cancer patients undergoing chemotherapy to help understand how the dosage of an expressive writing intervention might moderate its effects. METHODS: A total of 112 breast cancer patients undergoing chemotherapy were randomly allocated to the expressive writing group (n = 56) or the prolonged expressive writing group (n = 56). The expressive writing group received the standard expressive writing intervention based on Pennebaker's prompt to write for at least 20 min over four consecutive days (4 sessions). The prolonged expressive writing group used a modified prompt: write for at least 20 min 3 times a week over a 4-week period (12 sessions); patients could choose whether to write on consecutive days or not. All participants were required to write about their stressor-related upsetting or traumatic feelings about breast cancer. Outcomes were assessed and compared at baseline, as well as 1 month, 3 months, and 6 months postintervention. RESULTS: There was no significant difference in the patients' quality of life, or physical and psychological wellbeing between the expressive writing group and the prolonged expressive writing group at any time point (all p > .05). The quality of life of breast cancer patients significantly decreased in the two groups over time (F = 40.64, p < .001). CONCLUSION: Our findings suggest that the writing dosage does not moderate the effects of expressive writing on breast cancer patients undergoing chemotherapy. TRIAL REGISTRATION: ChiCTR1800016278.
Subject(s)
Breast Neoplasms/psychology , Outcome Assessment, Health Care/methods , Quality of Life/psychology , Writing , Female , Humans , Prospective StudiesABSTRACT
Ceratostigma willmottianum (Plumbaginaceae) is a perennial herb native to China. Many species of Plumbaginaceae have been reported to exhibit heterostyly. Determining the functional breeding system of C. willmottianum can improve our understanding of the reproductive ecology of heterostylous plants. We investigated the floral traits and pollen and stigma characteristics in a natural population, and artificial pollination was carried out in an artificial population. It was found that C. willmottianum was distylous with short (S)- and long (L)-styled morphs, did not exhibit precise reciprocal herkogamy and was partially self-compatible but primarily outcrossing. In the artificial pollination experiments, the pollen tubes reached the base of the style under intermorph pollination, whereas they rarely penetrated the style under intramorph pollination and self-pollination. Both the L and S morphs exhibited a high seed set after intermorph pollination, whereas the seed set under intramorph pollination was lower. Therefore, C. willmottianum may spread the chance of receiving pollen between the two morphs by nonreciprocal heterostyly, which may be a unique mode of ecological adaptation in Plumbaginaceae. We believe that our discovery could provide new ideas regarding the origin and evolution of heterostyly.