Widespread utilization of glyphosate has led to environmental residues,posing potential threats to ecological systems and human health.Traditional methods for detection of glyphosate are limited by specialized equipment and operational techniques,resulting in inefficient responses.Therefore,it is urgent to develop a convenient,sensitive and accurate detection method for detection of glyphosate.Herein,a new naphthalenesulfonamide-based"Turn-on"fluorescent probe was synthesized using 2-chloroaniline and dansyl chloride as raw materials through a one-step process,which showed a good linear relationship between the glyphosate concentration in concentration range of 0.003-70 μmol/L and the fluorescence intensity(R2=0.995),with a detection limit of 2.73 nmol/L(S/N=3).Analytical techniques such as nuclear magnetic resonance(NMR)spectroscopy and high-resolution mass spectrometry(HRMS)were used to investigate the interaction mechanism between the fluorescent probe and glyphosate.The results indicated that a nucleophilic substitution reaction occurred between the probe and the secondary amine(—NH—)of glyphosate,inducing a photoinduced electron transfer(PET)effect which enhanced the fluorescence intensity by 11.2 times.The probe showed good anti-interference ability towards coexisting metal ions,anions and pesticides in water.When applied to determination of glyphosate in the samples such as tap water,river water(Xiangxi River Reservoir),soil,soybeans,and corn,the spiking recoveries ranged from 94.7％to 109.9％,demonstrating the high accuracy and broad applicability of this detection method.A portable test strip based on this fluorescent probe was developed for rapid semi-quantitative analysis of glyphosate.The developed method was rapid,sensitive,and portable,providing theoretical and technical support for on-site measurement of environmental contaminants.

An integrated extraction-purification process was established in this work for efficient phycocyanin production from dried Spirulina platensispowder.Initially,phycocyanin was extracted from algal biomass using a combined swelling-enzymatic lysis strategy.Single-factor experiments were carried out to systematically evaluate the effects of critical parameters,including system pH,enzymatic hydrolysis duration,and temperature,on phycocyanin extraction yield.Subsequently,a three-factor,three-level Box-Behnken response surface methodology design was employed to optimize the extraction process,with phycocyanin concentration and purity in the extract serving as response variables.A predictive regression model identified optimal conditions as follows:pH 6.4,hydrolysis time 3.2 h,and temperature 35.4℃.Experimental validation under these conditions yielded a phycocyanin recovery of 26.6%.Following extraction,purification was achieved via a polyethylene glycol-phosphate aqueous two-phase extraction system,which elevated the final purity to 4.21.Results demonstrated that the swelling-enzymatic lysis approach effectively disrupted algal cellular structures,significantly enhancing phycocyanin release efficiency.Concurrently,the aqueous two-phase system enabled selective partitioning and enrichment of the target protein under mild conditions.The integrated process exhibited high extraction efficiency,gentle purification,and robust operability,rendering it suitable for the scalable production of natural phycocyanin.This work provided both methodological foundations and technical support for advancing phycocyanin applications in natural pigments,biomedicine,and analytical detection.

Objective To provide technical support for the formulation of scientific and reasonable supervision measures for enterprises engaged in the exploitation and utilization of ores with associated radionuclides in Guangxi Province, China. Methods A radionuclide analysis was performed on solid materials generated during production processes such as zirconium-titanium ore dressing and processing in multiple enterprises in Guangxi Province. The radiation levels of effluents was measured. Measurement and analysis were performed on the environmental air radon concentration levels and environmental γ-radiation dose rates at the factory boundaries of these enterprises and the surrounding environmental protection targets. Results The air absorption dose rate of γ radiation, the concentrations of radon and its daughters, and the radiation levels of surface water and aerosols at the factory boundaries and in the surrounding environment were all at normal levels. The specific activities of nuclides ²³⁸U, ²³²Th, and ²²⁶Ra in the raw ore, zirconium products, rutile products, and monazite products within the factory area were relatively high. The γ radiation air absorption dose rates in the corresponding workshops were also relatively high, with the zirconium-rutile workshop being the area with the highest values. Materials such as zirconium products, rutile, and monazite all showed a certain amount of radon exhalation. Conclusion The radiation level of tailings met the criteria of monitoring exemption, and the enterprises did not generate radioactive solid waste. Attention should be paid to the personal dose of the staff in areas with high radiation dose rates.

OBJECTIVE: To investigate the association of various polycyclic aromatic hydrocarbon (PAH) metabolites with diverse subtypes of cardiovascular disease (CVD) risk. METHODS: A novel predicting risk of cardiovascular disease EVENTs PREVENT equation was used to estimate the 10-year diverse subtypes of CVD risk, and their associations with PAH metabolites were analyzed using multiple logistic regression models, the weighted quantile sum (WQS) model, the quantile g-computation (qgcomp) model, and a stratified analysis of subgroups. RESULTS: For this study, six thousand seven hundred and forty-five participants were selected, and significant positive associations were observed between PAHs, naphthalene (NAP), and fluorene (FLU), and the risks of total CVD, atherosclerotic cardiovascular disease (ASCVD), and heart failure (HF). NAP and FLU were the primary contributors to the effects of PAH mixtures, and their associations with total CVD, ASCVD, and HF risk were significant in younger participants (30 ≤ age < 50 years); however, the associations of phenanthrene (PHEN) with ASCVD, HF, coronary heart disease (CHD), and stroke were dominant in aging participants (age ≥ 50 years). Notably, pyrene (PYR) was negatively associated with the risk of ASCVD, HF, CHD, and stroke. Similarly, negative associations of PYR with the four CVD subtypes were noticeable in aging participants. CONCLUSION Different PAHs metabolites had different impacts on each CVD subtype among different age groups. Notably, the protective effects of PYR on ASCVD, HF, CHD, and stroke were noticeable in aging individuals.
Humans ; Cardiovascular Diseases/chemically induced* ; Middle Aged ; Polycyclic Aromatic Hydrocarbons/metabolism* ; Male ; Female ; Adult ; Aged ; Risk Factors ; China/epidemiology*

Objective:To investigate the association between estimated cumulative low-density lipoprotein cholesterol (LDL-C) exposure and the severity of coronary artery disease and long-term adverse cardiovascular and cerebrovascular events (MACCE) in patients with acute coronary syndrome (ACS).Methods:The subjects were from the PROMISE study. This study was a prospective cohort study led by Fuwai Hospital, Chinese Academy of Medical Sciences, with participation from eight regional tertiary hospitals as sub-centers, and enrolled 18 701 patients with confirmed coronary heart disease between January 2015 and May 2019. Among them, 8 429 patients with ACS were included in this study. The estimated cumulative LDL-C exposure was calculated by multiplying LDL-C by age. Participants were then divided into four groups based on quartiles. Baseline data and coronary angiography data were collected, and participants were followed for 2 years. The primary endpoint was MACCE, which was composed of all-cause death, cardiac death, myocardial infarction, revascularization, and stroke. Spearman correlation analysis was used to estimate the correlation between cumulative LDL-C exposure and the severity of coronary artery disease. The differences in MACCE among the four groups were compared, and multivariate Cox regression was used to divide the estimated cumulative exposure LDL-C into two groups, three groups, and four groups to analyze its relationship with MACCE.Results:The 8 429 ACS patients included in the study had an age of (60.9±11.4) years, with 1 951(23.1%) females. Spearman correlation analysis revealed that estimated cumulative LDL-C exposure was positively associated with the preoperative SYNTAX score, three-vessel lesions disease, left main disease, and the number of target lesions (correlation coefficients r=0.14, 0.10, 0.04 and 0.03, respectively, with all P<0.05). The 2-year follow-up results indicated that the incidence rates of MACCE, all-cause death, cardiac death, myocardial infarction, and stroke in ACS patients grouped by different levels of estimated cumulative LDL-C exposure were statistically significant (all P<0.05). The results of the Cox multivariate regression analysis showed that when the estimated cumulative LDL-C exposure was treated as a continuous variable and analyzed in two, three, and four groups, with the lowest group as the reference, the risk of MACCE occurrence in the high-value group increased by 21% (95% CI 1.08-1.37, P=0.002), 24% (95% CI 1.07-1.43, P=0.004), and 21% (95% CI 1.02-1.43, P=0.025) respectively. Conclusions:A positive correlation was found between estimated cumulative LDL-C exposure and severity of coronary artery disease. High estimated cumulative LDL-C exposure level is a risk factor for MACCE in ACS patients within 2 years.

Objective:To evaluate the efficacy and safety of Nimotuzumab combined with concurrent chemoradiotherapy in elderly women with locally advanced cervical cancer.Methods:A retrospective analysis was conducted among elderly patients with cervical cancer who received nimotuzumab combined with concurrent chemoradiotherapy in the gynecology department of Beijing Hospital from November 2018 to March 2023.Efficacy assessments included the objective response rate(ORR), recurrence rates after 1-3 years of follow-up, and comparisons of the levels of squamous cell carcinoma antigen(SCC), carcino-embryonic antigen(CEA), and carbohydrate antigen 125(CA125)before and after treatment.Adverse reactions were graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events(NCI-CTCAE)version 5.0.Results:A total of 47 elderly patients aged 60 years and older with stage ⅠB3-Ⅳa cervical cancer were included, with ages ranging from 60 to 76 years[mean age: (65.8±4.3) years; median age: 65(62, 70) years].The patients were divided into three age groups: 60-64 years(21 cases), 65-69 years(14 cases), and ≥70 years(12 cases).After treatment, SCC and CEA levels significantly decreased compared to pre-treatment levels, with statistically significant differences ( W=5.281 and 2.607, respectively; both P<0.05).However, there was no significant difference in CA125 levels before and after treatment( W=1.591, P=0.112).Among the 47 patients, 3 did not undergo post-treatment imaging examinations.Efficacy evaluation results were collected from 44 patients, including 21 cases of complete response(CR)(47.7%), 21 cases of partial response(PR)(47.7%), 1 case of stable disease(SD)(2.3%), and 1 case of progressive disease(PD)(2.3%).The ORR was 95.5%(42/44), and the diseae control rate was 97.7%(43/44).There were statistically significant differences in efficacy among different age groups(Fisher's exact test P=0.015).During the treatment process, a total of 36 patients experienced grade 3 or higher adverse reactions during treatment.Among them, 14 cases(29.8%)with grade 3 or higher acute hematological adverse reactions, 11 cases(23.4%)with grade 3 or higher acute gastrointestinal reactions, and 6 cases(12.8%)with grade 3 or higher acute urinary symptoms.Additionally, 2 cases of radiation cystitis and 3 cases of radiation proctitis were reported.There was no statistically significant difference in recurrence rates among different age groups(Fisher's exact test P=0.292).The highest recurrence rate among elderly patients was observed at the 2-3 year follow-up. Conclusions:For elderly patients with good organ function status, standard concurrent chemoradiotherapy combined with nimotuzumab may be an effective treatment for locally advanced cervical cancer.

Emerging evidence suggests that dysbiosis of the gut microbiota is associated with the pathogenesis of Parkinson's disease (PD), a prevalent neurodegenerative disorder. The microbiota-gut-brain axis plays a crucial role in the development and progression of PD, and numerous studies have demonstrated the potential therapeutic benefits of modulations in the intestinal microbiota. This review provides insights into the characterization of the gut microbiota in patients with PD and highlights associations with clinical symptoms and underlying mechanisms. The discussion underscores the increased influence of the gut microbiota in the pathogenesis of PD. While the relationship is not fully elucidated, existing research demonstrates a strong correlation between changes in the composition of gut microbiota and disease development, and further investigation is warranted to explain the specific underlying mechanisms.
Humans ; Parkinson Disease/microbiology* ; Gastrointestinal Microbiome/physiology* ; Dysbiosis/microbiology*

Peroxisome proliferator-activated receptor γ coactivator 1 α (PGC-1α) is a core member of the PGC-1 family and serves as a transcriptional coactivator, playing a crucial regulatory role in various diseases. Mitochondria, the main site of cellular energy metabolism, are essential for maintaining cell growth and function. Their function is regulated by various transcription factors and coactivators. PGC-1α regulates the biogenesis, dynamics, energy metabolism, calcium homeostasis, and autophagy processes of mitochondria by interacting with multiple nuclear transcription factors, thereby exerting significant effects on mitochondrial function. This review explores the biological functions of PGC-1α and its regulatory effects and related mechanisms on mitochondria, providing important information for our in-depth understanding of the role of PGC-1α in cellular metabolism. The potential role of PGC-1α in metabolic diseases, cardiovascular diseases, and neurodegenerative diseases was also discussed, providing a theoretical basis for the development of new treatment strategies.
Humans ; Mitochondria/metabolism* ; Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/physiology* ; Animals ; Energy Metabolism/physiology* ; Neurodegenerative Diseases/physiopathology* ; Autophagy/physiology* ; Transcription Factors/physiology* ; Metabolic Diseases/physiopathology* ; Cardiovascular Diseases/physiopathology*

Objective:To evaluate the efficacy and safety of Nimotuzumab combined with concurrent chemoradiotherapy in elderly women with locally advanced cervical cancer.Methods:A retrospective analysis was conducted among elderly patients with cervical cancer who received nimotuzumab combined with concurrent chemoradiotherapy in the gynecology department of Beijing Hospital from November 2018 to March 2023.Efficacy assessments included the objective response rate(ORR), recurrence rates after 1-3 years of follow-up, and comparisons of the levels of squamous cell carcinoma antigen(SCC), carcino-embryonic antigen(CEA), and carbohydrate antigen 125(CA125)before and after treatment.Adverse reactions were graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events(NCI-CTCAE)version 5.0.Results:A total of 47 elderly patients aged 60 years and older with stage ⅠB3-Ⅳa cervical cancer were included, with ages ranging from 60 to 76 years[mean age: (65.8±4.3) years; median age: 65(62, 70) years].The patients were divided into three age groups: 60-64 years(21 cases), 65-69 years(14 cases), and ≥70 years(12 cases).After treatment, SCC and CEA levels significantly decreased compared to pre-treatment levels, with statistically significant differences ( W=5.281 and 2.607, respectively; both P<0.05).However, there was no significant difference in CA125 levels before and after treatment( W=1.591, P=0.112).Among the 47 patients, 3 did not undergo post-treatment imaging examinations.Efficacy evaluation results were collected from 44 patients, including 21 cases of complete response(CR)(47.7%), 21 cases of partial response(PR)(47.7%), 1 case of stable disease(SD)(2.3%), and 1 case of progressive disease(PD)(2.3%).The ORR was 95.5%(42/44), and the diseae control rate was 97.7%(43/44).There were statistically significant differences in efficacy among different age groups(Fisher's exact test P=0.015).During the treatment process, a total of 36 patients experienced grade 3 or higher adverse reactions during treatment.Among them, 14 cases(29.8%)with grade 3 or higher acute hematological adverse reactions, 11 cases(23.4%)with grade 3 or higher acute gastrointestinal reactions, and 6 cases(12.8%)with grade 3 or higher acute urinary symptoms.Additionally, 2 cases of radiation cystitis and 3 cases of radiation proctitis were reported.There was no statistically significant difference in recurrence rates among different age groups(Fisher's exact test P=0.292).The highest recurrence rate among elderly patients was observed at the 2-3 year follow-up. Conclusions:For elderly patients with good organ function status, standard concurrent chemoradiotherapy combined with nimotuzumab may be an effective treatment for locally advanced cervical cancer.