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1.
Int J Cancer ; 153(5): 1016-1025, 2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37204683

RESUMO

Regimens based on Bruton's tyrosine kinase inhibitors (BTKi) have been increasingly used to treat mantle cell lymphoma (MCL). A real-world multicenter study was conducted to characterize treatment patterns and outcomes in patients with newly diagnosed MCL by Chinese Hematologist and Oncologist Innovation Cooperation of the Excellent (CHOICE). The final analysis included 1261 patients. Immunochemotherapy was the most common first-line treatment, including R-CHOP in 34%, cytarabine-containing regimens in 21% and BR in 3% of the patients. Eleven percent (n = 145) of the patients received BTKi-based frontline therapy. Seventeen percent of the patients received maintenance rituximab. Autologous hematopoietic stem cell transplantation (AHCT) was conducted in 12% of the younger (<65 years) patients. In younger patients, propensity score matching analysis did not show significant difference in 2-year progression-free survival and 5-year overall survival rate in patients receiving standard high-dose immunochemotherapy followed by AHCT than induction therapy with BTKi-based regimens without subsequent AHCT (72% vs 70%, P = .476 and 91% vs 84%, P = .255). In older patients, BTKi combined with bendamustine plus rituximab (BR) was associated with the lowest POD24 rate (17%) compared with BR and other BTKi-containing regimens. In patients with resolved hepatitis B at the baseline, HBV reactivation rate was 2.3% vs 5.3% in those receiving anti-HBV prophylaxis vs not; BTKi treatment was not associated with higher risk of HBV reactivation. In conclusion, non-HD-AraC chemotherapy combined with BTKi may be a viable therapeutic strategy for younger patients. Anti-HBV prophylaxis should be implemented in patients with resolved hepatitis B.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Hepatite B , Linfoma de Célula do Manto , Adulto , Humanos , Idoso , Linfoma de Célula do Manto/tratamento farmacológico , Rituximab/uso terapêutico , Estudos Retrospectivos , Protocolos de Quimioterapia Combinada Antineoplásica , Citarabina/uso terapêutico
2.
Environ Res ; 220: 115196, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36592811

RESUMO

The widespread distribution of phthalates (PAEs) in agricultural soils is increasing drastically; however, the environmental occurrence and potential risk of PAEs in agricultural systems remain largely unreviewed. In this study, the occurrence, sources, ecotoxicity, exposure risks, and control measures of PAEs contaminants in agricultural soils are summarized, and it is concluded that PAEs have been widely detected and persist in the soil at concentrations ranging from a few µg/kg to tens of mg/kg, with spatial and vertical variations in China. Agrochemicals and atmospheric deposition have largely contributed to the elevated contamination status of PAEs in soils. In addition, PAEs cause multi-level hazards to soil organisms (survival, oxidative damage, genetic and molecular levels, etc.) and further disrupt the normal ecological functions of soil. The health hazards of PAEs to humans are mainly generated through dietary and non-dietary pathways, and children may be at a higher risk of exposure than adults. Improving the soil microenvironment and promoting biochemical reactions and metabolic processes of PAEs are the main mechanisms for mitigating contamination. Based on these reviews, this study provides a valuable framework for determining future study objectives to reveal environmental risks and reduce the resistance control of PAEs in agricultural soils.


Assuntos
Ácidos Ftálicos , Poluentes do Solo , Criança , Humanos , Solo/química , Ácidos Ftálicos/toxicidade , Poluentes do Solo/toxicidade , Poluentes do Solo/análise , Ésteres , Agricultura , China
3.
BMC Cancer ; 22(1): 45, 2022 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-34996395

RESUMO

BACKGROUND: Adult sporadic Burkitt lymphoma (BL) is a rare but highly aggressive subtype of lymphoma which lacks its own unique prognostic model. Systemic inflammatory biomarkers have been confirmed as prognostic markers in several types of malignancy. Our objective was to explore the predictive value of pretreatment inflammatory biomarkers and establish a novel, clinically applicable prognostic index for adult patients with sporadic BL. METHODS: We surveyed retrospectively 336 adult patients with newly diagnosed sporadic BL at 8 Chinese medical centers and divided into training cohort (n = 229) and validation cohort (n = 107). The pretreatment inflammatory biomarkers were calculated for optimal cut-off value. The association between serum biomarkers and overall survival (OS) was analyzed by Kaplan-Meier curves and Cox proportional models. The risk stratification was defined based on normal LDH level, Ann Arbor stage of I and completely resected abdominal lesion or single extra-abdominal mass < 10 cm. RESULTS AND CONCLUSIONS: Univariate and multivariate analyses revealed that platelets< 254 × 109/L, albumin< 40 g/L, lactate dehydrogenase≥334 U/L independently predicted unfavorable OS. We used these data as the basis for the prognostic index, in which patients were stratified into Group 1 (no or one risk factor), Group 2 (two risk factors), or Group 3 (three risk factors), which were associated with 5-year OS rates of 88.1, 72.4, and 45%, respectively. In the subgroup analysis for high-risk patients, our prognostic model results showed that high-risk patients with no more than one adverse factor presented a 5-year survival rate of 85.9%, but patients with three adverse factors had a 5-year survival rate of 43.0%. Harrell's concordance index (C-index) of the risk group score was 0.768. Therefore, the new prognostic model could be used to develop risk-adapted treatment approaches for adult sporadic BL.


Assuntos
Biomarcadores Tumorais/sangue , Linfoma de Burkitt , Adulto , Idoso , Linfoma de Burkitt/sangue , Linfoma de Burkitt/diagnóstico , Linfoma de Burkitt/epidemiologia , Linfoma de Burkitt/mortalidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
4.
Hematol Oncol ; 40(3): 343-355, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35368100

RESUMO

The mantle cell lymphoma (MCL) International Prognostic Index (MIPI) and combined MIPI (MIPI-c) are commonly used for risk classification of MCL patients. However, these indexes lack immune-related parameters. The purpose of this study was to develop a novel prognostic model that integrated clinical and immune parameters. A total of 189 patients with newly diagnosed MCL from January 2010 to June 2020 were enrolled in our study. A nomogram and immune-related prognostic index (IRPI) were established to predict the overall survival (OS) of patients according to univariate and multivariate analyses. Discrimination and calibration were used to compare the prognostic performance of the IRPI, MIPI, and MIPI-c. External validation was performed based on validation dataset (n = 150) from two other centers. The results for the training dataset indicated that B symptoms, platelet count, B2M level, CD4+ T-cell count<26.7% and CD8+ T-cell count>44.2% were predictors for OS. All the prognostic factors were integrated into the nomogram. For the overlap of confidence intervals of each variable, we assigned one point for each factor. The IRPI categorized patients into three risk categories: a score of zero indicated low risk, a score of one or two indicated intermediate risk, and a score of ≥3 indicated high risk. The IRPI showed better discrimination and calibration power than the MIPI and MIPI-c in the training dataset and validation dataset. The novel IRPI is a refined risk stratification index and reflects the strong complementary prognostic effects between clinical and immune parameters in MCL.


Assuntos
Linfoma de Célula do Manto , Adulto , Humanos , Contagem de Linfócitos , Análise Multivariada , Prognóstico
5.
Mol Pharm ; 18(12): 4531-4542, 2021 12 06.
Artigo em Inglês | MEDLINE | ID: mdl-34739255

RESUMO

Having benefited from the combination of different therapeutic modalities, functionalized nanoplatforms with synergistic strategies have aroused great interest in anticancer treatment. Herein, an engineered, a biodegradable hollow mesoporous organosilica nanoparticle (HMON)-based nanoplatform was fabricated for photothermal-enhanced chemotherapy of tumor. For the first time, we demonstrated that HMONs could serve as nanocarriers for co-delivering of both the paclitaxel and photothermal agent new indocyanine green (IR820), denoted as Paclitaxel/IR820@ HMONs-PEG. The as-prepared nanosystem exhibited a high paclitaxel-loading capacity of 28.4%, much higher than most paclitaxel-loaded nanoformulations. Furthermore, incorporating thioether bonds (S-S) into the HMONs' framework endowed them with GSH-responsive biodegradation behavior, leading to the controllable release of drugs under a tumor reducing microenvironment, and hindered the premature release of paclitaxel. Upon being irradiated with an NIR laser, the obtained co-delivery nanosystem exhibited great photothermal properties generated from IR820. The fabricated nanocomposites could significantly suppress tumor growth under NIR laser irradiation, as validated by in vitro and in vivo assessments. Combined with outstanding biocompatibility, the constructed nanosystem holds great potential in combinational antitumor therapy.


Assuntos
Sistemas de Liberação de Medicamentos , Nanopartículas/química , Neoplasias Experimentais/tratamento farmacológico , Compostos de Organossilício/química , Paclitaxel/química , Fototerapia/métodos , Animais , Liberação Controlada de Fármacos , Feminino , Glutationa/metabolismo , Hipertermia Induzida , Camundongos , Camundongos Endogâmicos BALB C , Paclitaxel/farmacocinética , Paclitaxel/uso terapêutico , Distribuição Tecidual , Ensaios Antitumorais Modelo de Xenoenxerto
6.
Tohoku J Exp Med ; 253(1): 19-28, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33441511

RESUMO

Juvenile idiopathic arthritis (JIA) is a heterogeneous autoimmune disease characterized by arthritis of unknown etiology. JNK pathway-associated phosphatase (JKAP) is reported to be a negative regulator of T-cell activation, but its clinical role in JIA is unknown. This study aimed to investigate the correlation of JKAP with disease activity and treatment response to a tumor necrosis factor (TNF) inhibitor, etanercept (ETN), in JIA patients. Totally, 104 JIA patients (6.9 ± 2.7 years old) and 100 age- and sex-matched healthy controls (HCs) (7.2 ± 2.4 years old) were enrolled, and their serum samples were collected for measuring JKAP by enzyme-linked immunoassay. In JIA patients, after 24-week ETN treatment, clinical response was assessed based on the American College of Rheumatology pediatric criteria (ACRpedi) 50 criteria. Results showed that JKAP levels were significantly lower in JIA patients compared with HCs, and of good value in differentiating JIA patients from HCs. Among JIA patients, higher JKAP levels were associated with lower disease activity indexes, including C-reactive protein, number of joints with active arthritis, physician's global assessment of disease activity, and the present history of disease-modifying antirheumatic drugs; higher baseline JKAP levels were correlated with worse ACRpedi 50 response to ETN at week 24, and was also an independent predictive factor for worse ACRpedi 50 response to ETN. Thus, it may be inappropriate to use ETN for JIA patients with higher JKAP levels. In conclusion, serum JKAP is a potential biomarker for JIA activity and treatment response to a TNF inhibitor.


Assuntos
Artrite Juvenil/sangue , Artrite Juvenil/enzimologia , Fosfatases de Especificidade Dupla/sangue , Fosfatases da Proteína Quinase Ativada por Mitógeno/sangue , Artrite Juvenil/tratamento farmacológico , Biomarcadores/sangue , Estudos de Casos e Controles , Criança , Etanercepte/uso terapêutico , Feminino , Humanos , Masculino , Fatores de Risco , Resultado do Tratamento
7.
Circulation ; 139(6): 730-743, 2019 02 05.
Artigo em Inglês | MEDLINE | ID: mdl-30586738

RESUMO

BACKGROUND: Poor glycemic control is associated with increased risk of cardiovascular disease (CVD) in type 1 diabetes mellitus (T1DM); however, little is known about mechanisms specific to T1DM. In T1DM, myocardial injury can induce persistent cardiac autoimmunity. Chronic hyperglycemia causes myocardial injury, raising the possibility that hyperglycemia-induced cardiac autoimmunity could contribute to long-term CVD complications in T1DM. METHODS: We measured the prevalence and profiles of cardiac autoantibodies (AAbs) in longitudinal samples from the DCCT (Diabetes Control and Complications Trial) in participants with mean hemoglobin A1c (HbA1c) ≥9.0% (n=83) and ≤7.0% (n=83) during DCCT. We assessed subsequent coronary artery calcification (measured once during years 7-9 in the post-DCCT EDIC [Epidemiology of Diabetes Interventions and Complications] observational study), high-sensitivity C-reactive protein (measured during EDIC years 4-6), and CVD events (defined as nonfatal myocardial infarction, stroke, death resulting from CVD, heart failure, or coronary artery bypass graft) over a 26-year median follow-up. Cardiac AAbs were also measured in matched patients with type 2 diabetes mellitus with HbA1c ≥9.0% (n=70) and ≤7.0% (n=140) and, as a control for cardiac autoimmunity, patients with Chagas cardiomyopathy (n=51). RESULTS: Apart from HbA1c levels, the DCCT groups shared similar CVD risk factors at the beginning and end of DCCT. The DCCT HbA1c ≥9.0% group showed markedly higher cardiac AAb levels than the HbA1c ≤7.0% group during DCCT, with a progressive increase and decrease in AAb levels over time in the 2 groups, respectively ( P<0.001). In the HbA1c ≥9.0% group, 46%, 22%, and 11% tested positive for ≥1, ≥2, and ≥3 different cardiac AAb types, respectively, similar to patients with Chagas cardiomyopathy, compared with 2%, 1%, and 0% in the HbA1c ≤7.0% group. Glycemic control was not associated with AAb prevalence in type 2 diabetes mellitus. Positivity for ≥2 AAbs during DCCT was associated with increased risk of CVD events (4 of 6; hazard ratio, 16.1; 95% CI, 3.0-88.2) and, in multivariable analyses, with detectable coronary artery calcification (13 of 31; odds ratio, 60.1; 95% CI, 8.4-410.0). Patients with ≥2 AAbs subsequently also showed elevated high-sensitivity C-reactive protein levels (6.0 mg/L versus 1.4 mg/L in patients with ≤1 AAbs; P=0.003). CONCLUSIONS: Poor glycemic control is associated with cardiac autoimmunity in T1DM. Furthermore, cardiac AAb positivity is associated with an increased risk of CVD decades later, suggesting a role for autoimmune mechanisms in the development of CVD in T1DM, possibly through inflammatory pathways.


Assuntos
Cardiomiopatia Chagásica/epidemiologia , Diabetes Mellitus Tipo 1/epidemiologia , Hiperglicemia/epidemiologia , Miocárdio/imunologia , Adulto , Autoanticorpos/sangue , Autoimunidade , Brasil/epidemiologia , Estudos de Casos e Controles , Estudos de Coortes , Diabetes Mellitus Tipo 1/tratamento farmacológico , Feminino , Antígenos HLA/genética , Humanos , Masculino , Prevalência , Risco , Fatores de Tempo , Adulto Jovem
8.
J Sci Food Agric ; 100(5): 2057-2064, 2020 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-31875968

RESUMO

BACKGROUND: The reason why dietary polyunsaturated fatty acids (PUFAs) affect the activity of Lactobacillus remains unclear. In this study, linoleic acid was used to study the mechanism underlying its inhibition function against Lactobacillus activity. RESULTS: The growth curve of Lactobacillus rhamnosus LGG and the metabolite content in bacterial liquid were determined at varying linoleic acid concentration. The degree of cell membrane damage of L. rhamnosus LGG was determined by flow cytometry and fluorescence microscopy, and the cell structure was observed by scanning electron microscopy and transmission electron microscopy. The effect of linoleic acid on Lactobacillus activity was assessed in a simulated gut environment. Results showed that L. rhamnosus LGG grew slowly, cell metabolites leaked into the liquid, cell membrane was damaged, and the cell structure changed at a linoleic acid concentration of 50 µg mL-1 . CONCLUSION: The mechanism of action of linoleic acid on Lactobacillus showed that that linoleic acid destroyed the cell membrane of bacteria, thereby affecting the normal metabolism of the bacteria and ultimately leading to their death. © 2019 Society of Chemical Industry.


Assuntos
Membrana Celular/efeitos dos fármacos , Lactobacillus/efeitos dos fármacos , Lactobacillus/metabolismo , Ácido Linoleico/farmacologia , Dimetil Sulfóxido/farmacologia , Lactobacillus acidophilus/efeitos dos fármacos , Lactobacillus acidophilus/metabolismo , Limosilactobacillus fermentum/efeitos dos fármacos , Limosilactobacillus fermentum/metabolismo , Lacticaseibacillus rhamnosus/efeitos dos fármacos , Lacticaseibacillus rhamnosus/metabolismo , Ligilactobacillus salivarius/efeitos dos fármacos , Ligilactobacillus salivarius/metabolismo , Testes de Sensibilidade Microbiana , Modelos Moleculares , Probióticos
9.
J Cell Biochem ; 120(5): 7741-7750, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30506715

RESUMO

The beneficial effects of icariin in the management of many diseases, such as chronic renal failure and heart failure, are well known. Icariin has also been shown to ameliorate osteoarthritis (OA) symptoms; however, the underlying mechanisms remain unclear. In this study, a bioinformatics analysis was performed to investigate the KEGG pathways of icariin-targeted genes involved in OA. Our study suggests that icariin plays a role in OA by regulating inflammatory cytokine production, insulin resistance, and cell survival through modulation of the NF-κB, MAPK, and Akt signaling pathways. Importantly, IKBKB, NFKBIA, MAPK8, MAPK9, and MAPK10 may be the hub genes affected by icariin when providing its beneficial effects on OA. In addition, we found that icariin decreases proinflammatory factors and inhibits chondrocyte apoptosis through suppression of the NF-κB pathway. Our study highlights a set of KEGG pathways that could explain the molecular mechanism of icariin's action on OA, suggesting that icariin could be considered as a promising therapeutic option for OA.

10.
Arch Orthop Trauma Surg ; 137(7): 997-1009, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28378211

RESUMO

BACKGROUND: The purpose of this meta-analysis was to compare the blood loss and complications of intra-articular (IA) with intravenous (IV) tranexamic acid (TXA) for total knee arthroplasty (TKA). METHODS: A comprehensive search of studies was conducted to identify related articles in Pubmed, Embase, Cochrane central Register of Controlled Trials, springerLink, OVID and the Research published from January 1980 to September 2016. All studies that compared IA TXA with IV TXA application on TKA were included. Main outcomes of the two methods were collected and analyzed by using Review Manager 5.3. RESULTS: There were 16 randomized controlled trials with 1308 cases met the criteria. Compared with IV TXA, IA TXA had similar blood volume of drainage, hidden blood loss, transfusion rate and complications (P > 0.05). IA TXA had lower total blood loss than IV TXA, and there was significant difference (P < 0.05). Subgroup analysis of total blood loss based on times of IV TXA administration showed that repeat dose of IV TXA had a higher total blood loss and postoperative hemoglobin drop (P < 0.05) than IA TXA. However, single dose of IV TXA had a similar efficacy on total blood loss and postoperative hemoglobin drop (P > 0.05) when compared with IA TXA. CONCLUSIONS: Both IA TXA and single dose of IV TXA are effective in reducing total blood loss and postoperative hemoglobin drop without increasing complications of DVT or PE. The current meta-analysis suggests that 1.5 g TXA by IA administration or 1 g TXA by IV administration 10 min before tourniquet deflation is effective and safe in patients undergoing TKA.


Assuntos
Antifibrinolíticos/uso terapêutico , Artroplastia do Joelho/métodos , Perda Sanguínea Cirúrgica/prevenção & controle , Ácido Tranexâmico/uso terapêutico , Administração Intravenosa , Antifibrinolíticos/administração & dosagem , Antifibrinolíticos/efeitos adversos , Humanos , Injeções Intra-Articulares , Complicações Pós-Operatórias , Ensaios Clínicos Controlados Aleatórios como Assunto , Ácido Tranexâmico/administração & dosagem , Ácido Tranexâmico/efeitos adversos
11.
J Hazard Mater ; 466: 133585, 2024 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-38271877

RESUMO

Continued application of new chiral fungicide mefentrifluconazole (MFZ) increases its risk to soil ecosystem. However, the toxicity of MFZ enantiomers to soil fauna and whether stereoselectivity exists remains poorly elucidated. Based on multilevel toxicity endpoints and transcriptomics, we investigated the negative effects of racemic, R-(-)-, and S-(+)-MFZ on Eisenia fetida. After exposure to S-(+) configuration at 4 mg/kg for 28 day, its reactive oxygen species levels were elevated by 15.4% compared to R-(-) configuration, inducing enantiospecific oxidative stress and transcriptional aberrations. The S-(+) isomer induced more severe cell membrane damage and apoptosis than the R-(-) isomer, and notably, the selectivity of apoptosis is probably dominated by the mitochondrial pathway. Mechanistically, differential mitochondrial stress lies in: S-(+) isomer specifically up-regulated mitochondrial cellular component compared to R-(-) isomer and identified more serious mitochondrial fission. Furthermore, S-(+) conformation down-regulated biological processes associated with ATP synthesis and metabolism, with specific inhibition of mitochondrial respiratory electron transport chain complex I and IV activity resulting in more severe electron flow disturbances. These ultimately mediated enantioselective ontogenetic process disorders, which were supported at phenotypic (weight loss), genetic, and protein (reverse modulate TCTP and Sox2 expression) levels. Our findings offer an important reference for elucidating the enantioselective toxicological mechanism of MFZ in soil fauna.


Assuntos
Fluconazol/análogos & derivados , Oligoquetos , Praguicidas , Poluentes do Solo , Animais , Praguicidas/toxicidade , Praguicidas/metabolismo , Oligoquetos/metabolismo , Estereoisomerismo , Ecossistema , Poluentes do Solo/metabolismo , Solo
12.
Sci Total Environ ; 912: 168876, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-38013100

RESUMO

As a ubiquitous contaminant in aquatic environments, diethyl phthalate (DEP) is a major threat to ecosystems because of its increasing utilization. However, the ecological responses to and toxicity mechanisms of DEP in aquatic organisms remain poorly understood. To address this environmental concern, we selected Chlorella vulgaris (C. vulgaris) as a model organism and investigated the toxicological effects of environmentally relevant DEP concentrations at the individual, physiological, biochemical, and molecular levels. Results showed that the incorporation of DEP significantly inhibited the growth of C. vulgaris, with inhibition rates ranging from 10.3 % to 83.47 %, and disrupted intracellular chloroplast structure at the individual level, while the decrease in photosynthetic pigments, with inhibition rates ranging from 8.95 % to 73.27 %, and the imbalance of redox homeostasis implied an adverse effect of DEP at the physio-biochemical level. Furthermore, DEP significantly reduced the metabolic activity of algal cells and negatively altered the cell membrane integrity and mitochondrial membrane potential. In addition, the apoptosis rate of algal cells presented a significant dose-effect relationship, which was mainly attributed to the fact that DEP pollutants regulated Ca2+ homeostasis and further increased the expression of Caspase-8, Caspase-9, and Caspase-3, which are associated with internal and external pathways. The gene transcriptional expression profile further revealed that DEP-mediated toxicity in C. vulgaris was mainly related to the destruction of the photosynthetic system, terpenoid backbone biosynthesis, and DNA replication. Overall, this study offers constructive understandings for a comprehensive assessment of the toxicity risks posed by DEP to C. vulgaris.


Assuntos
Chlorella vulgaris , Ácidos Ftálicos , Poluentes Químicos da Água , Chlorella vulgaris/metabolismo , Ecossistema , Saúde Ambiental , Ácidos Ftálicos/metabolismo , Poluentes Químicos da Água/metabolismo
13.
Sci Total Environ ; 951: 175623, 2024 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-39163942

RESUMO

Butyl benzyl phthalate (BBP), a common phthalate plasticizer, is frequently detected in aquatic environments. However, there has been relatively little research on its effects on gill-related responses. This study exposed adult zebrafish to BBP concentrations ranging from 5 to 500 µg/L for 28 days, specifically investigating its toxicity in the gills. Assessment of oxidative stress biomarkers and gene expression related to apoptosis and mitochondria was conducted. Results demonstrated that exposure to 500 µg/L of BBP disrupted the antioxidant defense system, leading to lipid peroxidation and DNA damage. Moreover, the expression level of the caspase-3 gene exhibited an approximate two-fold increase, whereas the expression of 18rs-rrn decreased by 50 % on day 28. Gene Ontology enrichment analysis indicated suppressed expression of antioxidant and metabolic process terms, alongside inhibition of metabolism, immune, and signal transduction-related pathways. This study offers novel insights into the toxic effects and mechanisms of BBP on fish, providing valuable data for assessing environmental risks linked to BBP contamination and advocating for its management in aquatic ecosystems.


Assuntos
Brânquias , Estresse Oxidativo , Ácidos Ftálicos , Transcriptoma , Poluentes Químicos da Água , Peixe-Zebra , Animais , Brânquias/efeitos dos fármacos , Brânquias/metabolismo , Ácidos Ftálicos/toxicidade , Poluentes Químicos da Água/toxicidade , Estresse Oxidativo/efeitos dos fármacos , Transcriptoma/efeitos dos fármacos , Plastificantes/toxicidade , Perfilação da Expressão Gênica , Biomarcadores/metabolismo
14.
J Agric Food Chem ; 72(35): 19304-19311, 2024 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-39013151

RESUMO

Widespread use of the new chiral triazole fungicide mefentrifluconazole (MFZ) poses a threat to soil organisms. Although triazole fungicides have been reported to induce reproductive disorders in vertebrates, significant research gaps remain regarding their impact on the reproductive health of soil invertebrates. Here, reproduction-related toxicity end points were explored in earthworms (Eisenia fetida) after exposure for 28 d to soil containing 4 mg/kg racemic MFZ, R-(-)-MFZ, and S-(+)-MFZ. The S-(+)-MFZ treatment resulted in a more pronounced reduction in the number of cocoons and juveniles compared to R-(-)-MFZ treatment, and the expression of annetocin gene was significantly downregulated following exposure to both enantiomers. This reproductive toxicity has been attributed to the disruption of ovarian steroidogenesis at the transcriptional level. Further studies revealed that MFZ enantiomers were able to activate the estrogen receptor (ER). Indirect evidence for this estrogenic effect is provided by the introduction of 17ß-estradiol, which also induces reproductive disorders through ER activation.


Assuntos
Fungicidas Industriais , Oligoquetos , Reprodução , Triazóis , Animais , Oligoquetos/efeitos dos fármacos , Oligoquetos/genética , Oligoquetos/metabolismo , Reprodução/efeitos dos fármacos , Fungicidas Industriais/toxicidade , Fungicidas Industriais/química , Triazóis/toxicidade , Triazóis/química , Estereoisomerismo , Poluentes do Solo/toxicidade , Poluentes do Solo/química , Feminino , Receptores de Estrogênio/metabolismo , Receptores de Estrogênio/genética , Estrogênios/metabolismo , Estrogênios/toxicidade
15.
Chemosphere ; 350: 141046, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38154674

RESUMO

As a kind of plasticizer, butyl benzyl phthalate (BBP) presents a serious hazard to the ecosystem. Therefore, there is a strong need for an effective technique to eliminate the risk of BBP. In this work, a new photocatalyst of Bi/Bi2O2CO3/Bi2S3 with an S-scheme heterojunction was synthesized using Bi(NO3)3 as the Bi source, Na2S as the S source, and DMF as the carbon source and reductant. Numerous techniques have been used to characterize Bi/Bi2O2CO3/Bi2S3, such as scanning electron microscopy, high-resolution transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The improved photoactivity of Bi/Bi2O2CO3/Bi2S3 was evaluated by photoelectrochemical response, electrochemical impedance spectroscopy, photoluminescence, UV-Vis diffuse reflectance spectroscopy, and electrochemical Mott Schottky spectroscopy. The enhanced photocatalytic activity of this composite for BBP degradation under simulated sunlight irradiation could be attributed to the surface plasmon resonance effect of Bi metal and the heterojunction structure of Bi2O2CO3 and Bi2S3. The degradation rate of Bi/Bi2O2CO3/Bi2S3 was 85%, which was 4.52 and 1.52 times that of Bi2O2CO3 and Bi2S3, respectively. The prepared photocatalyst possessed good stability and reproducibility in eliminating BBP. The improved photocatalytic activity of Bi/Bi2O2CO3/Bi2S3 was demonstrated with the formation of an S-scheme heterojunction, and the degradation mechanism was discussed with a liquid chromatograph mass spectrometer.


Assuntos
Ecossistema , Ácidos Ftálicos , Luz Solar , Reprodutibilidade dos Testes , Carbono
16.
J Ethnopharmacol ; 319(Pt 3): 117336, 2024 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-37907143

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: In traditional Chinese herbal medicine, rhubarb is said to remove accumulation with purgation, clearing heat, and discharging fire. Modern pharmacology has shown that rhubarb extract has a purgative effect when given to experimental animals in an appropriate dose. However, the active components and their mechanism of action are still not clearly defined. AIM OF THE STUDY: The current research aimed to evaluate the synergistic stool-softening effects and explore the action mechanism of rhubarb free anthraquinones (RhA) and their monomers on constipation in rats. MATERIALS AND METHODS: A rat model of water deficit-induced constipation was established to induce constipation, and these rats were treated with RhA and its monomers. ELISA, histopathology, immunohistochemistry, qPCR and Western blotting based on network pharmacology and molecular docking were conducted to explore the possible mechanism of action of RhA and its monomers. RESULTS: RhA, aloe-emodin, rhein, and chrysophanol showed stool-softening activity, and the combination of aloe-emodin and rhein had the strongest softening effect on faecal pellets. Aloe-emodin, rhein, and chrysophanol significantly increased the serum levels of vasoactive intestinal peptide (VIP), motilin (MTL), and substance P (SP), upregulated the expression of VIP, cyclase-associated protein 1 (CAP1), protein kinase A (PKA), cystic fibrosis transmembrane conductance regulator (CFTR), aquaporin 3 (AQP3), aquaporin 4 (AQP4), and aquaporin 8 (AQP8), decreased the expression of epithelial sodium channel (ENaC) and Na+/H+ exchanger 3 (NHE3), and reduced the colonic tissue concentration of Na+-K+-ATPase in the constipated rats. Osmolality of colonic fluid in model rats treated by RhA, aloe-emodin, rhein, and chrysophanol was increased. CONCLUSION: Aloe-emodin, rhein, and chrysophanol were the stool-softening components of the RhA extract, and there were certain drug-interactions between the components. RhA upregulated VIP expression, activated the cyclic adenosine monophosphate protein kinase A (cAMP/PKA) pathway, and further stimulated CFTR expression while inhibiting NHE3 and ENaC expression, resulting in a hypertonic state in the colonic lumen. Water transport could then be driven by an osmotic gradient, which in turn led to the upregulation of AQP3, AQP4, and AQP8 expression. In addition, RhA likely improved gastrointestinal motility by increasing serum VIP, SP, and MTL concentrations, thus promoting faecal excretion.


Assuntos
Emodina , Rheum , Animais , Ratos , Regulador de Condutância Transmembrana em Fibrose Cística , Simulação de Acoplamento Molecular , Trocador 3 de Sódio-Hidrogênio , Constipação Intestinal/induzido quimicamente , Constipação Intestinal/tratamento farmacológico , Antraquinonas/farmacologia , Antraquinonas/uso terapêutico , Aquaporina 3 , Proteínas Quinases Dependentes de AMP Cíclico , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico
17.
Biotechnol Genet Eng Rev ; : 1-20, 2023 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-37066859

RESUMO

This research wasdesigned to provide a visual analysis of the current status, hotspots, and trends of global acupuncture for dysmenorrhea over the past 2 decades. The literature about acupuncture for dysmenorrhea from the Web of Science Core Collection database. Cite Space (5.6.R3) was used to analyze the volume of publications, journals, authors, cited journals, cited authors, countries, cited references, institutions, and keywords by using standard bibliometric measures. The most productive countries and institutions in this area were China (79) and BeijingUniversity of Chinese Medicine (24). The Evidence-Based Complementary and Alternative Medicine was the most published journal (29) and also had the highest number of citations (80). The article by Woo HL (2018) (number of citations: 13) and the article by (centrality: 0.38) were the most representative references. JiangZhu (17) was the most productive author and Dawood MY (47) was the top cited author. The number one keyword in terms of frequency and centrality was 'primary dysmenorrhea", and the leading hotspot from 2002 to 2022 was "Functional connectivity". The three forefront topics were "prevalence", "impact"and "point'. This research is thefirst bibliometric analysis of the current situation and new trends about acupuncture for dysmenorrhea in the past 20 years using CiteSpace. It offered some information on acupuncture for dysmenorrhea and valuable information for researchers to identify prospective collaborators, partner institutions, popular topics, and research frontiers.

18.
Environ Pollut ; 322: 121204, 2023 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-36754202

RESUMO

As one of the most critical soil faunas in agroecosystems, earthworms are significant in preserving soil ecological health. Di (2-ethylhexyl) phthalate (DEHP) is a major plasticizer and widely used in plastic products like agricultural films. However, it has become ubiquitous contaminant in agricultural soil and poses a potential threat to soil health. Although the awareness of the impacts of DEHP on soil ecology is increasing, its adverse effects on soil invertebrates, especially earthworms, are still not well developed. In this study, the ecotoxicological effects and underlying mechanisms of environmentally relevant doses DEHP on earthworms of different ecological niches were investigated at the individual, cytological, and biochemical levels, respectively. Results showed that the acute toxicity of DEHP to M. guillelmi was higher than E. foetida. DEHP induced reactive oxygen species (ROS) levels and further caused oxidative damage (including cellular DNA and lipid peroxidation damage) in both species, speculating that they may exhibit similar oxidative stress mechanisms. Furthermore, two earthworms presented the alleviated toxicity when re-cultured in uncontaminated circumstances, yet, the accumulated ROS in bodies could not be completely scavenged. Risk assessment indicated that the detrimental impacts of DEHP were more significant in the M. guillelmi than in E. foetida in whole experiments prides, and the biomarkers additionally showed a species-specific trend. Besides, molecular docking revealed that DEHP could bind to the active center of superoxide dismutase/catalase (SOD/CAT) by hydrogen bonding or hydrophobic interactions. Overall, this study will provide a novel insight for accurate contaminant risk assessment, and also highlight that the comprehensive biological effects of different species should be emphasized in soil ecological health diagnostics and environmental toxicology assays, as otherwise it may lead to underestimation or misestimation of the soil health risk of contaminants.


Assuntos
Dietilexilftalato , Oligoquetos , Ácidos Ftálicos , Poluentes do Solo , Animais , Solo , Dietilexilftalato/metabolismo , Poluentes do Solo/análise , Espécies Reativas de Oxigênio , Simulação de Acoplamento Molecular , Ácidos Ftálicos/farmacologia , Estresse Oxidativo , Ecossistema
19.
J Hazard Mater ; 460: 132352, 2023 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-37619280

RESUMO

Phthalate esters (PAEs) are organic contaminants that pose environmental threat and safety risks to soil health and crop production. However, the ecological toxicity of different PAEs to cotton and the underlying mechanisms are not clear. This study investigated the ecotoxic effects and potential mechanisms of different alkyl-chain PAEs, including dioctyl phthalate (DOP), dibutyl phthalate (DBP), and diethyl phthalate (DEP) on cotton seedlings at multiple levels. The results showed that PAEs significantly hindered the growth and development of cotton. The chlorophyll content decreased by 1.87-31.66 %, accompanied by non-stomatal photosynthetic inhibition. The antioxidant system was activated by the three PAEs in cotton seedlings, while the osmotic potential was boosted intracellularly. Additionally, PAEs significantly interfered with functional gene expression and exhibited genotoxicity. Risk assessment results indicated that the ecotoxicity was DOP >DBP >DEP, with a "dose-response" relationship. The affinity between the three PAEs and catalase increased as the alkyl chain length increased, further supporting the toxicity sequence. Surprisingly, the bioconcentration factors of short-chain DEP were 8.07 ± 5.89 times and 1837.49 ± 826.83 times higher than those of long-chain DBP and DOP, respectively. These results support the ecological risk assessment of PAEs in cotton and provide new insights into determining the toxicity levels of different PAEs.


Assuntos
Dietilexilftalato , Gossypium , Plântula , Antioxidantes , Dibutilftalato/toxicidade , Dietilexilftalato/toxicidade , Ésteres/toxicidade
20.
Sci Total Environ ; 904: 166972, 2023 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-37699481

RESUMO

In recent years, the extensive distribution of phthalates (PAEs) in soils has attracted increasing attention. In this study, the concentrations of six types of PAEs were measured in five dissimilar regions of the Yellow River Delta (YRD), and regional differences, pollution characteristics and health risks of PAEs pollution were investigated. The detection rate of PAEs was 100 %, and the concentration range of Σ6PAEs was 0.709-9.565 mg/kg, with an average of 3.258 ± 2.031 mg/kg. There were different spatial distribution differences of PAEs in soils of the YRD, with residential living, chemical industrial, and crop growing areas being the main areas of PAEs distribution. It was worth noting that di (2-ethylhexyl) phthalate (DEHP) and dibutyl phthalate (DBP) are prominent contributors to PAEs in soils of the YRD. Correlation analyses showed that soils physicochemical properties such as SOM, TN and CEC were closely correlated to the transport and transformation of PAEs. Use by petrochemical industries, accumulation of plasticizers, additives (derived from cosmetics, food, pharmaceutical), fertilizers, pesticides, plastics, and atmospheric deposition are the principal sources of PAEs in the YRD. A health risk assessment showed that the health risk caused by non-dietary intake of PAEs was low and considered acceptable. PAEs pollution in the YRD soil is particularly noteworthy, especially for the prevention and control of DEHP and DBP pollution. This study provides basic data for an effective control of soil PAEs pollution in the YRD, which is conducive to the sustainable development of the region.


Assuntos
Dietilexilftalato , Ácidos Ftálicos , Poluentes do Solo , Solo/química , Ácidos Ftálicos/análise , Dietilexilftalato/análise , Rios/química , Poluentes do Solo/análise , Ésteres/análise , Dibutilftalato/análise , Medição de Risco , Verduras , China
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