Effect of sediment on fluvial phosphorus and aquatic water quality.

Phosphorus (P) is an essential element in the aquatic environment that is closely linked to river sediment dynamics. The effect of sediment on P has been widely recognized, but has been limited to specific scenarios without considering its relation to water quality management under different sediment scenarios. Water samples (1139 samples) collected from eight rivers across China were analyzed and a consistent comet-shaped relationship between sediment and dissolved P (DP), the component most directly impacting aquatic ecosystems, was observed.

Using Large Language Models to Analyze Factors Influencing Academic Supervision Relationships in Qualitative Interviews With Postgraduate Nursing Students.

Background: Nursing postgraduate supervisors serve as educators, mentors, and research facilitators, ensuring the holistic development of postgraduate students to meet the evolving demands of nursing care.

Purpose: This study explored factors influencing academic supervision relationships (playing a critical role in the academic and professional development of students). It innovatively applied 2 large language models (LLMs) to analyze qualitative interviews with postgraduate nursing students.

A Comprehensive Quality Evaluation Strategy of Wendan Decoction Based on Qualitative, Fingerprint, and Quantitative Analyses.

Introduction: Wendan decoction (WDD), a classic Chinese medicine formula, has been used for the treatment of insomnia for hundreds of years. However, the current research on the chemical composition and the material basis of the medicinal effect of WDD is not perfect, which limits further research on it.

Objectives: In the present study, we aimed to propose a methodology for the quality control of WDD based on qualitative and quantitative analysis of its components.

Sensitive electrochemical determination of quercetin and folic acid with cobalt nanoparticle functionalized multi-walled carbon nanotube.

A nanocomposite of cobalt nanoparticle (CoNP) functionalized carbon nanotube (Co@CNT) was prepared and used to modify a glassy carbon electrode (Co@CNT/GCE). Characterization indicates the morphology of Co@CNT is CoNPs adhering on CNTs. With the nano-interface, Co@CNT provides large surface area, high catalytic activity, and efficient electron transfer, which makes Co@CNT/GCE exhibiting satisfactory electrochemical response toward quercetin (QC) and folic acid (FA).

Characteristics of lipid metabolism after treatment of colon cancer mice with American ginseng vesicles.

Introduction: Lipid molecules are present in tumours and play an important role in the anti-inflammatory response as well as in antiviral protection. Changes in the type and location of lipids in the intestine following exposure to environmental stressors play an important role in several disorders, including ulcerative colitis (UC), inflammatory bowel disease (IBD), and colorectal cancer.

Objectives: The aim of this work is to provide a new theoretical basis for tumour initiation and development by accurately measuring the spatial distribution of lipids and metabolites in intestinal tissue.

An innovative method based on Gaussian cloud distribution and sample information richness for eutrophication assessment of Yangtze's lakes and reservoirs under uncertainty.

The precise assessment of a water body's eutrophication status is essential for making informed decisions in water environment management. However, conventional approaches frequently fail to consider the randomness, fuzziness, and inherent hidden information of water quality indicators. These would result in an unreliable assessment.

Nanocubic cobalt-containing Prussian blue analogue-derived carbon-coated CoFe alloy nanoparticles for noninvasive uric acid sensing.

This work describes an electrochemical sensor for the fast noninvasive detection of uric acid (UA) in saliva. The sensing material was based on a cobalt-containing Prussian blue analogue (NaCo[Fe(CN)], PCF). By optimizing the ratio of Co and Fe as 1.

Association of tea and its extracts with colorectal adenomas: meta-analysis and systematic review.

Background: There are many studies on the association of tea and its extracts with colorectal adenomas, but the results have varied. The study aims to investigate the effect of tea and its extracts on colorectal adenomas using meta analysis and systematic review.

Methods: Literature was obtained through PubMed, Cochrane Library, Embase and Chinese BioMedical Literature Service System since the establishment of the database until April 31, 2023.

The facile activation of graphite for the improved determination of dopamine, rutin and acetamidophenol.

A glassy carbon electrode (GCE) was modified with graphite powder (G/GCE), and then treated with a solution of sodium peroxide for several minutes to prepare an oxidized G/GCE (OG/GCE). The OG/GCE has prominently improved responses toward dopamine (DA), rutin (RT) and acetamidophenol (APAP), of which the anodic peak current was increased by 2.4, 4.

In situ electrodeposition of bismuth oxide nanowires @MWNT on the carbon fiber microelectrode for the sensitively electrochemical detection of folic acid.

A microminiaturized electrochemical device, BiO@CNW/CFE was fabricated based on the in situ co-electrodeposition of bismuth oxide nanowires (BiNWs) and multi-walled carbon nanotubes (MWNTs) on the surface of carbon fiber electrode (CFE). The nanostructure of BiNWs could bind MWNTs on the surface of CFE during the precipitation of bismuth at the potential of -1.1 V.

Land use, hydrology, and climate influence water quality of China's largest river.

Influences of multiple environmental factors on water quality patterns is less studied in large rivers. Landscape analysis, multiple statistical methods, and the water quality index (WQI) were used to detect water quality patterns and influencing factors in China's largest river, the Yangtze River. Compared with the dry season, the wet season had significantly higher total phosphorus (TP), chemical oxygen demand (COD), total suspended solids (TSS), and turbidity (TUR).

Estimation of Unintended Treated Wastewater Contributions to Streams in the Yangtze River Basin and the Potential Human Health and Ecological Risk Analysis.

"Clean water and sanitation" is one of the United Nations Sustainable Development Goals. One primary objective of wastewater treatment is to remove contaminants such as pathogens, nutrient, and organic matter from wastewater, while not all contaminants could be removed effectively. Wastewater treatment plants would inevitably represent concentrated point sources of residual contaminant loadings into surface waters.

Lithium cobalt phosphate electrode for the simultaneous determination of ascorbic acid, dopamine, and serum uric acid by differential pulse voltammetry.

Lithium cobalt phosphate (LCP) was prepared and modified on the surface of glassy carbon electrode (GCE) to fabricate the electrochemical sensor (LCP/GCE) for the simultaneous determination of ascorbic acid (AA), dopamine (DA), and serum uric acid (UA). The homogenous incorporation of carbon improved the conductivity of LCP. Benefiting from the small particle size distribution, LCP/GCE has a large active surface and responds to AA, DA, and UA sensitively and rapidly.

Comparison of Toric Intraocular Lens Alignment Between Femtosecond Laser-Assisted Capsular Marking and Manual Corneal Marking.

Purpose: To compare toric intraocular lens (IOL) alignment between femtosecond laser-assisted capsular marking and manual corneal marking.

Methods: This study prospectively included 72 consecutive eyes (from 72 patients) with cataract and anterior corneal astigmatism of 1.00 diopter (D) or greater that underwent femtosecond laser-assisted cataract surgery with implantation of a toric IOL.

miR-590-5P inhibits the progression of tongue squamous cell carcinoma by targeting FasL.

Objective: This study evaluated microRNA-590-5P (miR-590-5P), which functions as an anti-onco-miRNA in TSCC by downregulating FasL expression.

Methods: In this study, immunohistochemistry was used to detect FasL protein expression in 30 OSCC samples and 8 normal oral mucosa tissue samples. Target Scan was used to predict miRNAs that target FasL.

Sensitive and selective determination of GSH based on the ECL quenching of Ru(II) 1,10-phenanthroline-5,6-dione complex.

Electrochemiluminescence (ECL) material Ru-dpq (Ru(bpy)2dpq(2+), dpq=1,10-phenanthroline-5,6-dione; bpy=2,2'-bipyridine) is found to be produced strong and stable anodic ECL signal, which could be quenched by reduced glutathione (GSH) and exhibits high sensitivity and selectivity simultaneously. According to the mass spectra of Ru-SG (product of Ru-dpq reacted with GSH), and single crystal structure of the final oxidized product Ru-dcbpy ((Ru(bpy)2dcbpy(2+), dcbpy=3,3-dicarboxy-2,2-bipyridine), we propose a new interacted mechanism between Ru-dpq and GSH. A good linear relation is estimated to be from 0.

Self-enhanced electrogenerated chemiluminescence of ruthenium(II) complexes conjugated with Schiff bases.

In this work, we obtain two ruthenium(ii) complexes with Schiff base cavities that exhibit significantly enhanced electrochemiluminescence (ECL) intensity and quantum efficiency due to Ru(bpy)3(2+) in aqueous solution, without the addition of tri-n-propylamine (TPrA). The great increase in ECL intensity is confirmed to be due to the electrochemical oxidation of phenolic hydroxyl groups and the resonant structure of imino radicals. Thus, the electrons are transferred intramolecularly to the Ru(iii) center, leading to efficient generation of the excited state of Ru(ii)*.

[Evaluation the efficacy and safety of estradiol and drospirenone tablets in the treatment of menopausal symptoms among postmenopausal Chinese healthy women:a randomized, multi-center, double-blind, placebo-controlled clinical study].

Objective: To study the efficacy and safety of estradiol and drospirenone tablets (Angeliq) in treatment of menopausal symptoms among postmenopausal Chinese healthy women.

Methods: Total 244 postmenopausal Chinese healthy women who had moderate to severe hot flushes were randomly assigned into estradiol and drospirenone (observation group, n = 183) or placebo group (n = 61) by the ratio of 3:1 for 16 weeks in this randomized multi-center double-blind placebo-controlled study. During the trial, the follow-up visits were conducted at week 4, 8, 12, 16 of treatment and 2 weeks after treatment respectively.

[Study on the relationship of MTHFR polymorphisms with unexplained recurrent spontaneous abortion].

Objective: To assess the relationship of methylenetetrahydrofolate reductase (MTHFR) C677T genotypes to unexplained recurrent spontaneous abortion (URSA).

Methods: This study included two groups:57 currently non-pregnant women with a history of URSA (URSA group), and 50 currently non-pregnant women with a history of having given birth to at least one live baby and without any history of spontaneous abortion, still-born fetus, placental thrombosis and intrauterine growth retardation(IUGR)(control group). The fasting serum-Hcy was measured with high pressure liquid chromatography.

[Influences of active immunotherapy on T helper cell type 1 and 2 cytokines in women with unexplained habitual abortion].

Objective: To investigate the influences of active immunotherapy on T helper cell (Th)1/Th2 type cytokines in women with unexplained habitual abortion (UHA).

Methods: A total of 55 patients with UHA were studied, including 30 cases after active immunotherapy (AIT) and 25 cases without any therapy (NAIT). Fifteen cases of normal nonpregnant (NNP) women were selected as control group.