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1.
Small ; 20(21): e2308928, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38098313

RESUMO

Modulation of electronic structure and composition is widely recognized as an effective strategy to improve electrocatalyst performance. Herein, using a simple simultaneous carbonization and sulfidation strategy, NiFe double hydroxide-derived Fe5Ni4S8 (FNS) nanosheets immobilized on S-doped carbonized wood (SCW) framework by taking benefit of the orientation-constrained cavity and hierarchical porous structure of wood is proposed. Benefiting from the synergistic relationships between bimetal ions, the spatial confinement offered by the wood cavity, and the enhanced structural effects of the nanosheets array, the FNS/SCW exhibit enhanced intrinsic activity, increased accessibility of catalytically active sites, and convection-facilitated mass transport, resulting in an excellent oxygen evolution reaction (OER) activity and durability. Specifically, it takes a low overpotential of 230 mV at 50 mA cm-2 and potential increase is negligible (3.8%) at 50 mA cm-2 for 80 hours. Density functional theory (DFT) calculations further reveal that the synergistic effect of bimetal can optimize the electronic structure and lower the reaction energy barrier. The FNS/SCW used as the cathode of zinc-air battery shows higher power density and excellent durability relative to commercial RuO2, exhibiting a good application prospect. Overall, this research offers proposals for designing and producing effective OER electrocatalysts using sustainable resources.

2.
Gastric Cancer ; 27(3): 571-579, 2024 05.
Artigo em Inglês | MEDLINE | ID: mdl-38457083

RESUMO

BACKGROUND: It remains unclear whether addition of docetaxel to the combination of a platinum and fluoropyrimidine could provide more clinical benefits than doublet chemotherapies in the perioperative treatment for locally advanced gastric/gastro-esophageal junction (LAG/GEJ) cancer in Asia. In this randomized, phase 2 study, we assessed the efficacy and safety of perioperative docetaxel plus oxaliplatin and S-1 (DOS) versus oxaliplatin plus S-1 (SOX) in LAG/GEJ adenocarcinoma patients. METHODS: Patients with cT3-4 Nany M0 G/GEJ adenocarcinoma were randomized (1:1) to receive 4 cycles of preoperative DOS or SOX followed by D2 gastrectomy and another 4 cycles of postoperative chemotherapy. The primary endpoint was major pathological response (MPR). RESULTS: From Aug, 2015 to Dec, 2019,154 patients were enrolled and 147 patients included in final analysis, with a median age of 60 (26-73) years. DOS resulted in significantly higher MPR (25.4 vs. 11.8%, P = 0.04). R0 resection rate, the 3-year PFS and 3-year OS rates were 78.9 vs. 61.8% (P = 0.02), 52.3 vs. 35% (HR 0.667, 95% CI: 0.432-1.029, Log rank P = 0.07) and 57.5 vs. 49.2% (HR 0.685, 95% CI: 0.429-1.095, Log rank P = 0.11) in the DOS and SOX groups, respectively. Patients who acquired MPR experienced significantly better survival. DOS had similar tolerance to SOX. CONCLUSIONS: Perioperative DOS improved MPR significantly and tended to produce longer PFS compared to SOX in LAG/GEJ cancer in Asia, and might be considered as a preferred option for perioperative chemotherapy and worth further investigation.


Assuntos
Adenocarcinoma , Neoplasias Esofágicas , Neoplasias Gástricas , Humanos , Pessoa de Meia-Idade , Idoso , Docetaxel/uso terapêutico , Oxaliplatina , Neoplasias Gástricas/tratamento farmacológico , Neoplasias Gástricas/cirurgia , Neoplasias Gástricas/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Junção Esofagogástrica/patologia , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/cirurgia , Adenocarcinoma/patologia
3.
Lipids Health Dis ; 23(1): 303, 2024 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-39300559

RESUMO

BACKGROUND: Remnant cholesterol (RC), a potent atherogenic lipid, has been shown to be strongly correlated with insulin resistance and the pathogenesis of diabetes mellitus. However, the relationship between RC and normoglycemia reversal in individuals with impaired fasting glucose (IFG) is crucial and remains unclear. This investigation, which aimed to clarify this association, is important for understanding and potentially improving the management of diabetes. METHOD: This study, which included 15,019 IFG participants from 11 Chinese cities between 2010 and 2016, was conducted with a rigorous research process. Cox regression analysis revealed intriguing findings regarding the relationship between RC and normoglycemia reversal in individuals with IFG. Potential nonlinear associations were further explored via smooth curve-fitting techniques and 4-knot restricted cubic spline functions, ensuring a comprehensive analysis. To examine the validity of the results, an array of subgroup and sensitivity analyses were conducted, further bolstering the robustness of the findings. RESULTS: By the end of the 2.89-year median follow-up period, 6,483 of the 15,019 IFG participants (43.17%) had reverted to normoglycemia. The findings, which reveal that increased RC levels are inversely associated with the likelihood of normoglycemia reversal, are novel and significant. According to the fully adjusted Cox proportional hazards model analysis, an increase of one standard deviation in RC was associated with a 20% decrease in the likelihood of normoglycemia reversal among IFG participants (HR: 0.80, 95% CI: 0.77-0.82). A nonlinear association between RC and normoglycemia reversal was observed, with an inflection point at 41.37 mg/dL. This suggests that the growth rate of the likelihood of reversion decreased and stabilized after the inflection point was reached. Moreover, significant interactions were observed between the age groups, providing a more nuanced understanding of this complex relationship. CONCLUSION: Among Chinese adults with IFG, RC exhibited a negative nonlinear relationship with the probability of normoglycemia reversal. When RC levels reached or exceeded 41.38 mg/dL, the probability of achieving normoglycemia progressively diminished and subsequently stabilized. Maintaining RC levels below 41.38 mg/dL can significantly improve the probability of normoglycemia reversal among individuals with IFG, especially those aged 60 years or older.


Assuntos
Glicemia , Colesterol , Jejum , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Glicemia/metabolismo , Colesterol/sangue , Jejum/sangue , Modelos de Riscos Proporcionais , Adulto , Idoso , Estudos de Coortes , Triglicerídeos/sangue , China/epidemiologia , Resistência à Insulina , Intolerância à Glucose/sangue
4.
Echocardiography ; 41(8): e15907, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39158954

RESUMO

OBJECTIVE: Exploring the performance of ultrasound-based radiomics in forecasting major adverse cardiovascular events (MACE) within 1 year following percutaneous coronary intervention (PCI) of acute coronary syndrome (ACS) patients. METHODS: In this research, 161 ACS patients who underwent PCI were included (114 patients were randomly assigned to the training set and 47 patients to the validation set). Every patient received echocardiography 3-7 days after PCI and followed up for 1 year. The radiomics features related to MACE occurrence were extracted and selected to formulate the RAD score. Building ultrasound personalized model by incorporating RAD score, LVEF, LVGLS, and NT-ProBNP. The model's capacity to predict was tested using ROC curves. RESULTS: Multifactorial logistic regression analysis of RAD score with clinical data and echocardiographic parameters indicated RAD score and LVGLS as independent risk factors for the occurrence of MACE. The RAD score predicted MACE, with AUC values of 0.85 and 0.86 in the training and validation sets. The ultrasound personalized model had a superior ability to predict the occurrence of MACE, with AUC values of 0.88 and 0.92, which were higher than those of the clinical model (with AUC of 0.72 and 0.80) without RAD score (Z = 3.711, 2.043, P < .001, P = .041). Furthermore, DCA indicated that the ultrasound personalization model presented a more favorable net clinical benefit. CONCLUSIONS: Ultrasound radiomics can be a reliable tool to predict the incidence of MACE after PCI in patients with ACS and provides quantifiable data for personalized clinical treatment.


Assuntos
Síndrome Coronariana Aguda , Ecocardiografia , Intervenção Coronária Percutânea , Humanos , Intervenção Coronária Percutânea/efeitos adversos , Feminino , Masculino , Pessoa de Meia-Idade , Ecocardiografia/métodos , Fatores de Risco , Seguimentos , Complicações Pós-Operatórias/epidemiologia , Idoso , Valor Preditivo dos Testes , Radiômica
5.
Ecotoxicol Environ Saf ; 272: 116058, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38301583

RESUMO

Homoyessotoxin (homo-YTX) and nitrite (NO2-N), released during harmful dinoflagellate cell lysis adversely affect abalones. However, their toxicity mechanisms in shellfish remain unclear. This study investigated the economic abalone species Haliotis discus hannai exposed to varying concentrations of homo-YTX (0, 2, 5, and 10 µg L-1) and NO2-N (0, 3, and 6 mg L-1) on the basis of their 12 h LC50 values (5.05 µg L-1 and 4.25 mg L-1, respectively) and the environmentally relevant dissolved concentrations during severe dinoflagellate blooms, including mixtures. The test abalones were exposed to homo-YTX and NO2-N for 12 h. The mortality rate (D), reactive oxygen species (ROS) levels, antioxidant defense capabilities, and expression levels of antioxidant-related, Hsp-related, and apoptosis-related genes in abalone gills were assessed. Results showed that the combined exposure to homo-YTX and NO2-N increased the D and ROS levels and upregulated B-cell lymphoma-2 (BCL2)-associated X (BAX) and caspase3 (CASP3) expression levels while reducing glutathione peroxidase (GPx) activity and GPx, CuZnSOD, and BCL2 expression levels. High concentrations of homo-YTX (10 µg L-1) and NO2-N (6 mg L-1) solutions and the combinations of these toxicants inhibited the activities of superoxide dismutase (SOD) and catalase (CAT) and downregulated the expression levels of MnSOD, CAT, Hsp70, and Hsp90. The ROS levels were negatively correlated with the activities of SOD, CAT, and GPx and the expression levels of MnSOD, CuZnSOD, CAT, GPx, Hsp70, Hsp90, and BCL2. These results suggest that homo-YTX, in conjunction with NO2-N, induces oxidative stress, disrupts antioxidant defense systems, and triggers caspase-dependent apoptosis in the gills of abalone. ROS-mediated antioxidative and heat-shock responses and apoptosis emerge as potential toxicity mechanisms affecting the survival of H. discus hannai due to homo-YTX and NO2-N exposure.


Assuntos
Antioxidantes , Gastrópodes , Animais , Antioxidantes/metabolismo , Nitritos/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Dióxido de Nitrogênio , Superóxido Dismutase/metabolismo , Proteínas de Choque Térmico HSP90/genética , Proteínas de Choque Térmico HSP90/metabolismo , Proteínas de Choque Térmico HSP70/metabolismo , Apoptose , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Gastrópodes/genética , Gastrópodes/metabolismo
6.
J Evid Based Dent Pract ; 23(1): 101831, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36914298

RESUMO

OBJECTIVE: To assess the reporting quality of systematic review (SR) abstracts published in leading general dental journals according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Abstracts (PRISMA-A) guidelines, and to identify factors associated with overall reporting quality. METHODS: We identified SR abstracts published in 10 leading general dental journals and assessed their reporting quality. For each abstract, an overall reporting score (ORS, range: 0-13) was calculated. Risk ratio (RR) was calculated to compare the reporting quality of abstracts in Pre-PRISMA (2011-2012) and Post-PRISMA (2017-2018) periods. Univariable and multivariable linear regression analyses were performed to identify factors associated with reporting quality. RESULTS: A total of 104 eligible abstracts were included. The mean ORS was 5.59 (SD = 1.48) and 6.97 (1.74) respectively in the Pre- and Post-PRISMA abstracts, with statistically significant difference (mean difference = 1.38; 95% CI: 0.70, 2.05). Reporting of the exact P-value (B = 1.22; 95% CI: 0.45, 1.99) was a significant predictor of higher reporting quality. CONCLUSION: The reporting quality of SR abstracts published in leading general dental journals improved after the release of PRISMA-A guidelines, but is still suboptimal. Relevant stakeholders need to work together to enhance the reporting quality of SR abstracts in dentistry.


Assuntos
Odontologia , Publicações Periódicas como Assunto , Revisões Sistemáticas como Assunto , Humanos , Publicações Periódicas como Assunto/normas , Projetos de Pesquisa
7.
Thromb J ; 20(1): 47, 2022 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-35999599

RESUMO

BACKGROUND: Previous studies demonstrate a reduced risk of thrombosis and mortality with anticoagulant treatment in patients with COVID-19 than in those without anticoagulation treatment. However, an open question regarding the efficacy and safety of therapeutic anticoagulation (T-AC) versus a lower dose, prophylaxis anticoagulation (P-AC) in COVID-19 patients is still controversial. METHODS: We systematically reviewed currently available randomized clinical trials (RCTs) and observational studies (OBs) from January 8, 2019, to January 8, 2022, and compared prophylactic and therapeutic anticoagulant treatment in COVID-19 patients. The primary outcomes were risk of mortality, major bleeding, and the secondary outcomes included venous and arterial thromboembolism. Subgroup analysis was also performed between critically ill and non-critically ill patients with COVID-19 and between patients with higher and lower levels of D-dimer. Sensitivity analysis was performed to decrease the bias and the impact of population heterogeneity. RESULTS: We identified 11 RCTs and 17 OBs fulfilling our inclusion criteria. In the RCTs analyses, there was no statistically significant difference in the relative risk of mortality between COVID-19 patients with T-AC treatment and those treated with P-AC (RR 0.95, 95% CI, 0.78-1.15, P = 0.60). Similar results were also found in the OBs analyses (RR 1.21, 95% CI, 0.98-1.49, P = 0.08). The pooling meta-analysis using a random-effects model combined with effect sizes showed that in the RCTs and OBs analyses, patients with COVID-19 who received T-AC treatment had a significantly higher relative risk of the major bleeding event than those with P-AC treatment in COVID-19 patients (RCTs: RR 1.76, 95% CI, 1.19-2.62, P = 0.005; OBs: RR 2.39, 95% CI, 1.56-3.68, P < 0.0001). Compared with P-AC treatment in COVID-19 patients, patients with T-AC treatment significantly reduced the incidence of venous thromboembolism (RR 0.51, 95% CI, 0.39-0.67, P<0.00001), but it is not associated with arterial thrombosis events (RR 0.97, 95% CI, 0.66-1.42, P = 0.87). The subgroup analysis of OBs shows that the mortality risk significantly reduces in critically ill COVID-19 patients treated with T-AC compared with those with P-AC treatment (RR 0.58, 95% CI, 0.39-0.86, P = 0.007), while the mortality risk significantly increases in non-critically ill COVID-19 patients treated with T-AC (RR 1.56, 95% CI, 1.34-1.80, P < 0.00001). In addition, T-AC treatment does not reduce the risk of mortality in COVID-19 patients with high d-dimer levels in RCTs. Finally, the overall sensitivity analysis after excluding two RCTs studies remains consistent with the previous results. CONCLUSIONS: In our integrated analysis of included RCTs and OBs, there is no significant difference between the mortality of T-AC and P-AC treatment in unselected patients with COVID-19. T-AC treatment in COVID-19 patients significantly reduced the incidence of venous thromboembolism but showed a higher risk of bleeding than those with P-AC treatment. In addition, P-AC treatment was superior to T-AC treatment in non-critically ill COVID-19 patients, the evidence supporting the necessity for T-AC treatment in critically ill COVID-19 patients came only from OBs. TRIAL REGISTRATION: Protocol registration: The protocol was registered at PROSPERO (CRD42021293294).

8.
J Med Internet Res ; 23(4): e24316, 2021 04 30.
Artigo em Inglês | MEDLINE | ID: mdl-33882021

RESUMO

BACKGROUND: The COVID-19 pandemic has led to worldwide school closures, with millions of children confined to online learning at home. As a result, children may be susceptible to anxiety and digital eye strain, highlighting a need for population interventions. OBJECTIVE: The objective of our study was to investigate whether a digital behavior change intervention aimed at promoting physical activity could reduce children's anxiety and digital eye strain while undergoing prolonged homeschooling during the COVID-19 pandemic. METHODS: In this cluster randomized controlled trial, homeschooled grade 7 students at 12 middle schools in southern China were recruited through local schools and randomly assigned by the school to receive (1:1 allocation): (1) health education information promoting exercise and ocular relaxation, and access to a digital behavior change intervention, with live streaming and peer sharing of promoted activities (intervention), or (2) health education information only (control). The primary outcome was change in self-reported anxiety score. Secondary outcomes included change in self-reported eye strain and sleep quality. RESULTS: On March 16, 2020, 1009 children were evaluated, and 954 (94.5%) eligible children of consenting families were included in the intention-to-treat analysis. Children in the intervention (n=485, 6 schools) and control (n=469, 6 schools) groups were aged 13.5 (SD 0.5) years, and 52.3% (n=499) were male. The assigned interventions were completed by 896 children (intervention: n=467, 96.3%; control: n=429, 91.5%). The 2-week change in square-root-transformed self-reported anxiety scores was greater in the intervention (-0.23, 95% CI -0.27 to -0.20) vs control group (0.12, 95% CI 0.09-0.16; unadjusted difference -0.36, 95% CI -0.63 to -0.08; P=.02). There was a significant reduction in square-root-transformed eye strain in the intervention group (-0.08, 95% CI -0.10 to 0.06) compared to controls (0.07, 95% CI 0.05-0.09; difference -0.15, 95% CI -0.26 to -0.03; P=.02). Change in sleep quality was similar between the two groups. CONCLUSIONS: This digital behavior change intervention reduced children's anxiety and eye strain during COVID-19-associated online schooling. TRIAL REGISTRATION: ClinicalTrials.gov NCT04309097; http://clinicaltrials.gov/ct2/show/NCT04309097.


Assuntos
Ansiedade/terapia , Astenopia/prevenção & controle , COVID-19 , Educação a Distância , Exercício Físico , Grupo Associado , Estudantes , Adolescente , Ansiedade/prevenção & controle , Ansiedade/psicologia , COVID-19/epidemiologia , China/epidemiologia , Feminino , Humanos , Masculino , Pandemias , Autorrelato , Estudantes/psicologia
9.
World J Surg Oncol ; 18(1): 43, 2020 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-32106866

RESUMO

BACKGROUND: Total gastrectomy (TG) is a widely accepted procedure for treating gastric stump cancer (GSC). However, subtotal gastrectomy (SG) would benefit elective patients with GSC. The aim of this study was to clarify the safety and long-term prognosis of SG in treating GSC after distal gastrectomy for benign lesions. METHODS: A total of 53 patients with GSC located at the anastomotic site or gastric body between May 1999 and December 2018 at our hospital were included. In total, 21 patients underwent SG, and the remaining 24 patients underwent TG. Clinicopathological data, operative data, and overall survival (OS) were compared. RESULTS: The operative duration, estimated blood loss volume, and length of hospital stay were similar between the SG and TG groups. The postoperative complications were similar between the two groups, but no cases of anastomotic leakage were noted in the SG group. TG was associated with significantly more retrieved lymph nodes than SG (18.5 ± 11.5 vs. 10.7 ± 9.2; p = 0.017), while the number of metastatic lymph nodes did not differ between the groups (2.9 ± 3.5 vs. 1.9 ± 3.6; p = 0.329). The median survival time in the SG group was 81.0 months (95% confidence interval (CI), 68.906 to 93.094 months), which was similar to the 45.0 months (95% CI, 15.920 to 74.080 months) observed in the TG group (p = 0.236). Both univariate and multivariate analyses showed that tumor location and histological type were prognostic factors, while surgery type was not a prognostic factor. Further stratified analyses according to tumor location revealed that OS was not significantly different between the two groups among patients with tumors located at the anastomotic site, while OS in the TG group was significantly better than that in the SG group among patients with tumors located in the gastric body (p = 0.046). CONCLUSIONS: The results of the current study indicate that SG is a suitable alternative surgical procedure for GSC located at the anastomotic site after distal gastrectomy for benign lesions. The short-term outcomes and long-term prognoses of SG are comparable with those of TG.


Assuntos
Adenocarcinoma/cirurgia , Gastrectomia/métodos , Coto Gástrico/patologia , Complicações Pós-Operatórias/cirurgia , Reoperação/métodos , Neoplasias Gástricas/cirurgia , Adenocarcinoma/etiologia , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Idoso , Anastomose Cirúrgica/efeitos adversos , Feminino , Gastrectomia/efeitos adversos , Coto Gástrico/cirurgia , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/patologia , Prognóstico , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Taxa de Sobrevida , Resultado do Tratamento
10.
Int Ophthalmol ; 40(6): 1487-1499, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32080793

RESUMO

OBJECTIVE: Shared decision making and meaningful patient involvement are key in improving cataract treatment outcomes, but no decision aid has been formally developed and validated for this purpose. Our aims were to develop a patient decision aid to guide patients' decision about when to undergo cataract surgery, and to determine patient's comprehension and booklet's acceptability. METHODS: The patient decision aid was developed and included evidence-based information about general cataract, its benefits, risks of treatment options, and value clarification exercise. A total of 30 patients with age-related cataract aged between 50 and 80 years were interviewed after using either the patient decision aid (n = 15) or the traditional education booklet (n = 15). RESULTS: The patients who received the decision aid agreed that the information was new (n = 15, 100%), the length of the aid was "just about right" (n = 13, 87%), the information was clear and easy to understand (n = 13, 87%), the decision aid was helpful in making decision (n = 13, 87%) and would like to recommend this decision aid to others (n = 14, 93%). CONCLUSIONS: The decision aid was assessed positively by patients with age-related cataract. There is a need for its further verification in the context of primary eye care setting.


Assuntos
Extração de Catarata , Catarata/terapia , Técnicas de Apoio para a Decisão , Gerenciamento Clínico , Consentimento Livre e Esclarecido , Participação do Paciente/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
11.
Int Ophthalmol ; 40(11): 2889-2899, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32601961

RESUMO

PURPOSE: To develop a theoretical framework for assessing knowledge about the possible outcomes of undergoing cataract surgery, and explore the association of knowledge level with psychological status and decision quality among patients with cataract in Southern China. METHODS: The details of the knowledge scale were based on the health education information booklet provided by National Eye Institute, NIH. We used a theory-based approach to assess gist knowledge, which comprises 12 questions related to knowledge of the possible surgical outcomes. The scale was then used in a cross-sectional study to assess the association of knowledge score with psychological status and decision quality among cataract patients. RESULTS: A total of 489 participants with age-related cataract were included in this study, and 10.2% (50/489) of them had adequate level of knowledge. The knowledge scale was significantly associated to the levels of worry (Odds Ratio (OR) = 0.36, 95%CI: 0.18, 0.70; P = 0.003), anxiety (beta coefficient = - 5.36, 95%CI - 8.88, - 1.84; P = 0.003), inaction regret (OR = 0.49, 95%CI: 0.28, 0.88; P = 0.016) and decision conflict (beta coefficient = - 7.93, 95%CI - 12.81, - 3.04; P = 0.002) in multivariate analyses adjusted for age, sex, education level and literacy level. CONCLUSION: Knowledge adequacy with cataract surgery outcomes was negatively associated with cataract worry, anxiety and decisional conflict. Patients with adequate knowledge were more likely to postpone cataract surgery.


Assuntos
Extração de Catarata , Catarata , Catarata/epidemiologia , China/epidemiologia , Estudos Transversais , Humanos , Medição de Risco
12.
J Environ Sci (China) ; 67: 191-197, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29778152

RESUMO

The purpose of this study was to determine perfluoroalkyl substances (PFASs) in human serum, urine, hair and nail from general populations, and to investigate the possibility for human urine, hair and nail used as the biomonitoring sample for PFASs exposure. We detected the concentrations of PFHxA, PFOA, PFNA, PFDA, PFUnDA, PFDoA, PFHxS and PFOS in 39 matched human serum, urine, hair and nail samples from Shenzhen in China. The detection frequency and the median level of PFOS were all higher than that of the other PFASs in four matrices. The median concentration of PFOS in serum, urine, hair, and nail were 9.24ng/mL, 13.96ng/L, 0.58ng/g and 0.63ng/g, respectively. The results of spearman correlation test indicated that nail was an ideal matrix for biomonitoring PFOS rather than human urine and hair in general populations for the non-invasive sampling.


Assuntos
Exposição Ambiental/análise , Poluentes Ambientais/metabolismo , Fluorocarbonos/metabolismo , Ácidos Alcanossulfônicos , Líquidos Corporais , China , Exposição Ambiental/estatística & dados numéricos , Monitoramento Ambiental , Poluentes Ambientais/sangue , Poluentes Ambientais/urina , Fluorocarbonos/análise , Fluorocarbonos/sangue , Fluorocarbonos/urina , Cabelo/química , Cabelo/metabolismo , Humanos , Unhas/metabolismo
13.
J Sep Sci ; 40(17): 3453-3461, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28665025

RESUMO

The determination of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans, and dioxin-like polychlorinated biphenyls in blood from a non-occupational population is essential for the investigation of adverse health effects from these pollutants. In this study, a sensitive method based on programmable-temperature vaporization with large-volume injection coupled with gas chromatography with high-resolution mass spectrometry was developed to determine these pollutants in 1-2 mL of human serum samples. Various key parameters of programmable-temperature vaporization injector, including vent temperature, vent time, vent flow, transfer temperature and transfer time were optimized by factorial design. The accuracy and precision as well as applicability were assessed by determining polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and dioxin-like polychlorinated biphenyls in calibration standard solutions, standard reference materials and real human serum samples from non-occupational population. The method detection limits of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans, and dioxin-like polychlorinated biphenyls were 1.5-9.0 and 0.005-0.02 ng/kg wet weight, respectively. By comparing with typically splitless injection, the application of programmable-temperature vaporization injector could effectively lead to higher detectable rate of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans, and dioxin-like polychlorinated biphenyls in 1-2 mL of human serum samples.


Assuntos
Dibenzofuranos Policlorados/sangue , Cromatografia Gasosa-Espectrometria de Massas , Bifenilos Policlorados/sangue , Dibenzodioxinas Policloradas/sangue , Humanos , Temperatura , Volatilização
14.
Front Oncol ; 14: 1341900, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38304873

RESUMO

Objective: This retrospective study aimed to evaluate the feasibility and safety of intraoperative assessment of anastomotic blood supply in patients undergoing esophagojejunostomy or esophagogastrostomy for gastric cancer using Indocyanine Green Fluorescence Imaging (IGFI). Materials and methods: From January 2019 to October 2021, we conducted a retrospective analysis of patients who had undergone laparoscopic gastrectomy for the treatment of gastric cancer. The patients were consecutively enrolled and categorized into two study groups: the Indocyanine Green Fluorescence Imaging (IGFI) group consisting of 86 patients, and the control group comprising 92 patients. In the IGFI group, intravenous administration of Indocyanine Green (ICG) was performed, and we utilized a fluorescence camera system to assess anastomotic blood supply both before and after the anastomosis. Results: The demographic characteristics of patients in both groups were found to be comparable. In the IGFI group, the mean time to observe perfusion fluorescence was 26.3 ± 12.0 seconds post-ICG injection, and six patients needed to select a more proximal resection point due to insufficient fluorescence at their initial site of choice. Notably, the IGFI group exhibited a lower incidence of postoperative anastomotic leakage, with no significant disparities observed in terms of pathological outcomes, postoperative recovery, or other postoperative complication rates when compared to the control group (p > 0.05). Conclusion: This study underscores the potential of IGFI as a dependable and pragmatic tool for the assessment of anastomotic blood supply following esophagojejunostomy or esophagogastrostomy for gastric cancer. The use of IGFI may potentially reduce the occurrence of postoperative anastomotic leakage.

15.
Asian Pac J Cancer Prev ; 25(7): 2409-2413, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-39068574

RESUMO

BACKGROUND: This study evaluated the safety and efficiency of intraperitoneal irrigation chemotherapy with lobaplatin for the treatment of advanced gastric cancer (GC). METHODS: A total of 56 locally advanced GC patients (experimental group) who received intraoperative intraperitoneal irrigation chemotherapy in addition to undergoing radical D2 surgery were matched 1:1 based on 8 covariates to 56 patients without drug treatment (control group). Clinical data were collected and analyzed. RESULT: The two groups were well balanced in basic characteristics and had comparable clinical indices. All patients had similar time to first flatus (2.8 ± 0.3 vs. 2.9 ± 0.3 d, P = 0.076), time to first oral intake (3.5 ± 3.4 vs. 4.1 ± 4.6 d, P = 0.439), and duration of postoperative hospitalization (9.1 ± 3.2 vs. 9.6 ± 4.0 d, P = 0.446). There were no significant differences in postoperative complications including anastomotic and duodenal stump leakage, abdominal and anastomotic bleeding, seroperitoneum, and incision infection between the experimental and control groups (P > 0.05). The rates of chemotherapy-related side effects including allergic reaction, neurotoxicity, diarrhea, and nausea/vomiting were also similar between the two groups, and there were no abnormalities in leukocyte and platelet levels and liver and renal function during the first 5 days after surgery. CONCLUSION: Intraperitoneal irrigation chemotherapy with lobaplatin is safe for patients with advanced gastric cancer.


Assuntos
Ciclobutanos , Compostos Organoplatínicos , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/patologia , Neoplasias Gástricas/tratamento farmacológico , Feminino , Masculino , Pessoa de Meia-Idade , Compostos Organoplatínicos/administração & dosagem , Ciclobutanos/administração & dosagem , Lavagem Peritoneal/métodos , Prognóstico , Estudos de Casos e Controles , Seguimentos , Idoso , Antineoplásicos/uso terapêutico , Antineoplásicos/administração & dosagem , Adulto , Irrigação Terapêutica/métodos
16.
Front Immunol ; 15: 1418965, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39161764

RESUMO

Hepatocellular carcinoma (HCC) is one of the most common cancers and the third leading cause of death worldwide. surgery, transarterial chemoembolization (TACE), systemic therapy, local ablation therapy, radiotherapy, and targeted drug therapy with agents such as sorafenib. However, the tumor microenvironment of liver cancer has a strong immunosuppressive effect. Therefore, new treatments for liver cancer are still necessary. Immune checkpoint molecules, such as programmed death-1 (PD-1), programmed death-ligand 1 (PD-L1), and cytotoxic T lymphocyte antigen-4 (CTLA-4), along with high levels of immunosuppressive cytokines, induce T cell inhibition and are key mechanisms of immune escape in HCC. Recently, immunotherapy based on immune checkpoint inhibitors (ICIs) as monotherapy or in combination with tyrosine kinase inhibitors, anti-angiogenesis drugs, chemotherapy agents, and topical therapies has offered great promise in the treatment of liver cancer. In this review, we discuss the latest advances in ICIs combined with targeted drugs (targeted-immune combination) and other targeted-immune combination regimens for the treatment of patients with advanced HCC (aHCC) or unresectable HCC (uHCC), and provide an outlook on future prospects. The literature reviewed spans the last five years and includes studies identified using keywords such as "hepatocellular carcinoma," "immune checkpoint inhibitors," "targeted therapy," "combination therapy," and "immunotherapy".


Assuntos
Carcinoma Hepatocelular , Inibidores de Checkpoint Imunológico , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/terapia , Carcinoma Hepatocelular/imunologia , Neoplasias Hepáticas/terapia , Neoplasias Hepáticas/imunologia , Inibidores de Checkpoint Imunológico/uso terapêutico , Microambiente Tumoral/imunologia , Terapia de Alvo Molecular , Animais , Imunoterapia/métodos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico
17.
Front Neurol ; 15: 1418060, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39050128

RESUMO

This paper reviews the current research progress in the application of Artificial Intelligence (AI) based on ischemic stroke imaging, analyzes the main challenges, and explores future research directions. This study emphasizes the application of AI in areas such as automatic segmentation of infarct areas, detection of large vessel occlusion, prediction of stroke outcomes, assessment of hemorrhagic transformation risk, forecasting of recurrent ischemic stroke risk, and automatic grading of collateral circulation. The research indicates that Machine Learning (ML) and Deep Learning (DL) technologies have tremendous potential for improving diagnostic accuracy, accelerating disease identification, and predicting disease progression and treatment responses. However, the clinical application of these technologies still faces challenges such as limitations in data volume, model interpretability, and the need for real-time monitoring and updating. Additionally, this paper discusses the prospects of applying large language models, such as the transformer architecture, in ischemic stroke imaging analysis, emphasizing the importance of establishing large public databases and the need for future research to focus on the interpretability of algorithms and the comprehensiveness of clinical decision support. Overall, AI has significant application value in the management of ischemic stroke; however, existing technological and practical challenges must be overcome to achieve its widespread application in clinical practice.

18.
Front Neurol ; 15: 1391382, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38694771

RESUMO

Intracranial aneurysm is a high-risk disease, with imaging playing a crucial role in their diagnosis and treatment. The rapid advancement of artificial intelligence in imaging technology holds promise for the development of AI-based radiomics predictive models. These models could potentially enable the automatic detection and diagnosis of intracranial aneurysms, assess their status, and predict outcomes, thereby assisting in the creation of personalized treatment plans. In addition, these techniques could improve diagnostic efficiency for physicians and patient prognoses. This article aims to review the progress of artificial intelligence radiomics in the study of intracranial aneurysms, addressing the challenges faced and future prospects, in hopes of introducing new ideas for the precise diagnosis and treatment of intracranial aneurysms.

19.
Zhonghua Zhong Liu Za Zhi ; 35(1): 63-6, 2013 Jan.
Artigo em Zh | MEDLINE | ID: mdl-23648304

RESUMO

OBJECTIVE: To analyze the outcomes of simultaneous liver resection for patients who have primary colorectal cancer with synchronous hepatic metastases to see if there is any advantage for doing so. METHODS: We retrospectively analyzed the medical records (1999 - 2009) of 53 consecutive patients with synchronously recognized primary colorectal carcinoma and hepatic metastases who underwent simultaneous (40 patients) or two-stage (13 patients) colonic and hepatic resections performed at our hospital. RESULTS: There was no thirty-day mortality in both groups. The two groups had significant differences in mean operation duration [(212.9 ± 72.3) min vs. (326.5 ± 140.2) min, P = 0.014], mean blood loss [(337.5 ± 298.0) ml vs. (594.6 ± 430.5) ml, P = 0.020], post-operative hospital stay [(16.2 ± 8.1) day vs. (25.8 ± 8.5) day, P = 0.001]. The incidence rates of post-operative complications were 25.0% (10/40) and 53.8% (7/13), respectively, in the two groups (P = 0.053). The 1-, 3-, 5-year survival rates in the simultaneous resection group were 95.0%, 57.0% and 37.4%, respectively, with a median overall survival of 40.0 months and median disease-free survival of 14.0 months. The 1-, 3-, 5-year survival rates in the two-stage resection group were 92.3%, 58.7% and 36.7%, respectively, with a median overall survival of 38.0 months and median disease-free survival of 13.0 months. There were no significant differences between the two groups in respect of their survivals (P > 0.05). CONCLUSIONS: Simultaneous colectomy and hepatectomy are safe and efficient for colorectal cancer patients who have synchronous colorectal liver metastases, with less complications and blood loss, and shorter hospital stay compared with the two-stage resection.


Assuntos
Neoplasias do Colo/cirurgia , Neoplasias Hepáticas/cirurgia , Neoplasias Retais/cirurgia , Perda Sanguínea Cirúrgica , Colectomia/métodos , Neoplasias do Colo/patologia , Intervalo Livre de Doença , Feminino , Seguimentos , Hepatectomia/métodos , Humanos , Tempo de Internação , Neoplasias Hepáticas/secundário , Masculino , Duração da Cirurgia , Complicações Pós-Operatórias , Neoplasias Retais/patologia , Estudos Retrospectivos , Taxa de Sobrevida
20.
J Hazard Mater ; 460: 132339, 2023 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-37660622

RESUMO

Per- and polyfluoroalkyl substances (PFAS) are persistent organic pollutants widely detected in blood from pregnant women, yet limited study evaluated the trimester-specific variance of serum PFAS, and even less is known for the window of vulnerability to lipids metabolism interrupting effects of PFAS during pregnancy. We quantified 16 legacy, 3 emerging PFAS, and lipid biomarkers in 286 serum samples from 118 pregnant women. All target PFAS, except perfluorotridecanoic acid (PFTrDA), in maternal serum showed moderate to low temporal irregular variability across gestation (average intraclass correlation coefficients ≥ 0.57), while the generalized estimating equations showed a significant declining trend in the serum levels during pregnancy (p for trend < 0.05). The decline of 6:2 chlorinated polyfluorinated ether sulfonate in maternal serum was the greatest with a change of - 21.63% from 1st to 2nd trimester, which indicated a possible higher accumulation of this emerging PFAS in fetal compartment. Multiple linear regression, multiple informant model and Bayesian kernel machine regression showed a higher vulnerability in the 1st trimester to effects of PFAS exposure on serum lipids of pregnant women. The results highlighted the importance of the study timing of PFAS exposure during pregnancy.


Assuntos
Fluorocarbonos , Gestantes , Gravidez , Humanos , Feminino , Teorema de Bayes , Hemodinâmica , Lipídeos
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