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1.
Exp Ther Med ; 27(6): 246, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38655037

RESUMO

Systemic lupus erythematosus (SLE) is an autoimmune disease which typically presents in young women. Patients with SLE exhibit features of accelerated atherosclerosis. Here, the present study reported a rare case of acute myocardial infarction (AMI) in a male patient diagnosed with SLE. A 29-year-old male with no cardiovascular history was diagnosed with AMI and underwent coronary angiography, which showed a long-extended spiral-shaped dissection of the right coronary artery (RCA). The patient's autoimmune panel tested positive for antinuclear, anti-nuclear ribonucleoprotein/Smith and anti-Sjogren's syndrome A antibodies. The patient was diagnosed with SLE and was administered prednisone, hydroxychloroquine and calcium carbonate therapy. At the 3-month follow-up, a repeat coronary angiography showed no dissection in the RCA. Intravascular ultrasound and optical coherence tomography also showed an isolated atherosclerotic lesion without arterial dissection in the RCA. To the best of our knowledge, this is the first reported case of a male patient with SLE who developed myocardial infarction caused by spontaneous coronary artery dissection (SCAD). The present report may provide new insights into possible future treatments for SCAD. SCAD should be considered in patients with SLE and AMI, particularly in young patients without cardiovascular risk factors. Early diagnosis of SCAD is important to provide accurate therapy that differs from the treatment of AMI caused by atherosclerosis.

2.
Sci Total Environ ; 926: 172121, 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38565345

RESUMO

Mycorrhizae and their hyphae play critical roles in soil organic carbon (SOC) accumulation. However, their individual contributions to SOC components and stability under climate warming conditions remain unclear. This study investigated the effects of warming on the SOC pools of Picea asperata (an ectomycorrhizal plant) and Fargesia nitida (an arbuscular mycorrhizal plant) mycorrhizae/hyphae on the eastern Tibetan Plateau. The results indicated that mycorrhizae made greater contributions to SOC accumulation than hyphae did by increasing labile organic carbon (LOC) components, such as particle organic carbon (POC), easily oxidizable organic carbon, and microbial biomass carbon, especially under warming conditions. Plant species also had different effects on SOC composition, resulting in higher mineral-associated organic carbon (MAOC) contents in F. nitida plots than in P. asperata plots; consequently, the former favored SOC stability more than the latter, with a lower POC/MAOC. Partial least-squares path modelling further indicated that mycorrhizae/hyphae indirectly affected LOC pools, mainly by changing soil pH and enzyme activities. Warming had no significant effect on SOC content but did change SOC composition by reducing LOC through affecting soil pH and iron oxides and ultimately increasing SOC stability in the presence of mycorrhizae for both plants. Therefore, the mycorrhizae of both plants are major contributors to the variation of SOC components and stability under warming conditions.


Assuntos
Micorrizas , Solo , Solo/química , Micorrizas/química , Carbono/análise , Hifas/química , Tibet , China , Plantas , Minerais , Microbiologia do Solo
3.
Sleep Med ; 117: 79-86, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38518586

RESUMO

BACKGROUND: While negative life events (NLEs) have been linked to an increased risk of sleep disturbance among adolescents, the mechanisms of this impact still lack further examination. The current study aimed to explore whether intolerance of uncertainty (IU), a dispositional transdiagnostic vulnerability factor for psychopathology, could act as a mediator and/or moderator in the link from NLEs to sleep disturbance. METHODS: A longitudinal nested subsample of 54,240 Chinese adolescents (aged 9-19) were surveyed at baseline (Timepoint 1) and six months later (Timepoint 2). They completed questionnaires to assess their IU, NLEs, sleep disturbance and sociodemographic characteristics. Mediation and moderation analyses were conducted to test our hypotheses. RESULTS: Upon adjusting for covariates, IU was found to mediate the relationship between NLEs and residual changes in sleep disturbance over a six-month period, with the mediation effect accounting for 31.8%. Additionally, the moderating role of IU in this relationship was also identified, suggesting that a high level of IU exacerbated the effect of NLEs on sleep disturbance. CONCLUSIONS: In conclusion, our findings shed light on the dual roles of IU in the link from NLEs to sleep disturbance, holding significant practical implications for preventing and intervening in sleep disturbance among adolescents. To mitigate the risk of sleep disturbance among adolescents experiencing NLEs, timely assessments of IU and tailored interventions to enhance uncertainty tolerance are necessary.


Assuntos
Personalidade , Humanos , Adolescente , Incerteza , Inquéritos e Questionários , Fatores de Risco
4.
J Hazard Mater ; 465: 133112, 2024 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-38043420

RESUMO

Hexavalent chromium (Cr(VI)) contamination in soil and groundwater is usually remediated via reduction techniques. The formation of crystalline chromium phosphate (CrPO4·6 H2O) occurs as a byproduct during Cr(VI) remediation processes in the presence of phosphate, yet its stability in the environment has received limited attention. In this study, the formation conditions, structure, properties, and risks associated with the dissolution and oxidation of CrPO4·6 H2O were comprehensively assessed. Results showed that crystalline CrPO4·6 H2O was formed under pH 5 - 7 at room temperature. CrPO4·6 H2O exhibits higher dissolution risk compared to Cr(OH)3·3 H2O due to a long Cr-P bond (4.2 Å). H+ and OH- increased the risk of dissolution at pH 5 and 11, respectively, owing to the formation of CrH2PO42+ and Cr(OH)4-. In addition, under faintly acidic conditions, the high solubility of CrPO4·6 H2O increases the risk of oxidation; under neutral and weakly alkaline conditions, the presence of positively charged Cr(H2O)63+ structures on the surface elevates its susceptibility to contact and oxidation by δ-MnO2 compared to Cr(OH)3·3 H2O. Specifically, at pH 11, the conversion of CrPO4·6 H2O to Cr(OH)3·3 H2O results in similar oxidation risks for both Cr(III) precipitates.

5.
PLoS Pathog ; 19(11): e1011789, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37948454

RESUMO

The COVID pandemic fueled by emerging SARS-CoV-2 new variants of concern remains a major global health concern, and the constantly emerging mutations present challenges to current therapeutics. The spike glycoprotein is not only essential for the initial viral entry, but is also responsible for the transmission of SARS-CoV-2 components via syncytia formation. Spike-mediated cell-cell transmission is strongly resistant to extracellular therapeutic and convalescent antibodies via an unknown mechanism. Here, we describe the antibody-mediated spike activation and syncytia formation on cells displaying the viral spike. We found that soluble antibodies against receptor binding motif (RBM) are capable of inducing the proteolytic processing of spike at both the S1/S2 and S2' cleavage sites, hence triggering ACE2-independent cell-cell fusion. Mechanistically, antibody-induced cell-cell fusion requires the shedding of S1 and exposure of the fusion peptide at the cell surface. By inhibiting S1/S2 proteolysis, we demonstrated that cell-cell fusion mediated by spike can be re-sensitized towards antibody neutralization in vitro. Lastly, we showed that cytopathic effect mediated by authentic SARS-CoV-2 infection remain unaffected by the addition of extracellular neutralization antibodies. Hence, these results unveil a novel mode of antibody evasion and provide insights for antibody selection and drug design strategies targeting the SARS-CoV-2 infected cells.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , Anticorpos , Membrana Celular , Glicoproteína da Espícula de Coronavírus/genética
6.
Arq Bras Cardiol ; 120(8): e20220611, 2023.
Artigo em Inglês, Português | MEDLINE | ID: mdl-37971045

RESUMO

BACKGROUND: Heart failure (HF) management has markedly improved, but a clinically meaningful improvement in functional capacity and quality of life is perhaps more important for patients than living longer. OBJECTIVE: This study aimed to review the improvement in quality of life with sacubitril/valsartan in patients with HF and reduced/preserved ejection fraction (EF) from prospective clinical trials. METHODS: PubMed, Embase, and the Cochrane Library were searched for randomized controlled trials (RCTs) and prospective cohort studies published from inception to July 2021. A total of 6 clinical trials and 16854 patients with HF were included. The primary outcome was the change from baseline in KCCQ clinical summary score. The secondary outcomes were scores in other domains of KCCQ, the occurrence of serious adverse events (AEs), and overall mortality. P-values <0.05 were considered statistically significant. RESULTS: Treatment of sacubitril/valsartan showed significantly higher KCCQ-CSS compared to the control (WMD=0.975, 95% CI: 0.885, 1.064, p<0.001; I2=94.8%, pheterogeneity<0.001). A significant decrease in the mortality rate was observed in the sacubitril/valsartan group compared to the control group (RR=0.895, 95%CI:0.831, 0.965, p=0.004; I2=43.6%, pheterogeneity=0.150). Nevertheless, no significant reduction in the occurrence of serious AEs was found among HF patients treated with sacubitril/valsartan compared to the control group (RR=0.950, 95%CI: 0.879, 1.027, p<0.001; I2=68.1%, pheterogeneity=0.024). CONCLUSIONS: Our study demonstrated that sacubitril/valsartan might significantly improve the HRQL compared to other treatments according to the results in KCCQ-CSS and some subdomains in the KCCQ index during the follow-up in patients with HF.


FUNDAMENTO: O manejo da insuficiência cardíaca (IC) tem melhorado acentuadamente, mas uma melhora clinicamente significativa na capacidade funcional e na qualidade de vida talvez seja mais importante para os pacientes do que viver mais. OBJETIVO: Este estudo teve como objetivo revisar a melhora na qualidade de vida com sacubitril/valsartan em pacientes com IC e fração de ejeção (FE) reduzida/preservada a partir de ensaios clínicos prospectivos. MÉTODOS: PubMed, Embase e Cochrane Library foram pesquisados em busca de ensaios clínicos randomizados (ECRs) e estudos de coorte prospectivos publicados desde o início até julho de 2021. Um total de 6 ensaios clínicos e 16.854 pacientes com IC foram incluídos. O desfecho primário foi a alteração da linha de base na pontuação do resumo clínico do KCCQ. Os desfechos secundários foram pontuações em outros domínios do KCCQ, ocorrência de eventos adversos graves (EAs) e mortalidade geral. Valores de p < 0,05 foram considerados estatisticamente significativos. RESULTADOS: O tratamento de sacubitril/valsartan mostrou KCCQ-CSS significativamente maior em comparação com o controle (DMP=0,975, IC 95%:0,885, 1,064, p<0,001; I2=94,8%, pheterogeneidade<0,001). Uma diminuição significativa na taxa de mortalidade foi observada no grupo sacubitril/valsartan em comparação com o grupo controle (RR=0,895, IC 95%: 0,831, 0,965, p=0,004; I2=43,6%, pheterogeneidade=0,150). No entanto, nenhuma redução significativa na ocorrência de EAs graves foi encontrada entre pacientes com IC tratados com sacubitril/valsartan em comparação com o grupo controle (RR=0,950, IC 95%: 0,879, 1,027, p<0,001; I2=68,1%, pheterogeneidade= 0,024). CONCLUSÕES: Nosso estudo demonstrou que o sacubitril/valsartan pode melhorar significativamente a QVRS em comparação com outros tratamentos de acordo com os resultados do KCCQ-CSS e alguns subdomínios do índice KCCQ durante o acompanhamento em pacientes com IC.


Assuntos
Insuficiência Cardíaca , Tetrazóis , Humanos , Aminobutiratos/uso terapêutico , Antagonistas de Receptores de Angiotensina/uso terapêutico , Combinação de Medicamentos , Insuficiência Cardíaca/tratamento farmacológico , Qualidade de Vida , Volume Sistólico , Tetrazóis/uso terapêutico , Valsartana/efeitos adversos , Ensaios Clínicos como Assunto
7.
Heliyon ; 9(10): e20290, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37780777

RESUMO

Traditionally before solving the optimal power flow considering uncertainty (OPF-U) problem, the predicted value of uncertainty parameters, such as wind power, e.g., is derived from data using a statistics approach or machine learning. Based on the predicted uncertainty parameters, the solution to the OPF-U problem can be obtained by the prescriptive analytics technique, such as robust optimization (RO). However, it is unclarified how the prediction error in predictive analytics affects solving the OPF-U problem in prescriptive analytics. We propose an adjustable framework method combining machine learning and RO for the OPF-U problem. The k-nearest neighbor is applied to obtain k samples around the predicted value from sufficient historical data. And the optimization results from a minimum volume ellipsoid set containing the k samples are applied to construct KMV set. Then a robust fluctuation region with an adjustable budget level is gained from the KMV set by a two-term exponential formula, which can be embedded into a two-stage RO model. Computational experiments under test cases of different uncertainty scales show the robustness and adjustability of the proposed fluctuation region are better than the state-of-the-art box and ellipsoidal sets. The solution of the proposed two-stage RO model is more economical than the state-of-the-art RO model. The out-of-sample simulation also demonstrates the proposed adjustable Predictive&Prescriptive method can reduce the computational burden as the scale of the system increases when predictive and prescriptive analytics are separated.

8.
Environ Sci Technol ; 57(40): 15203-15212, 2023 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-37729390

RESUMO

Cr(VI) rebound is the primary risk associated with the reduction remediation of Cr(VI)-contaminated soil. The potential impact of sulfites, which can be produced by microbial activities or originate from sulfur-containing remediation agents, on the Cr(VI) rebound in the vadose zone has been overlooked. When sulfites are present, the stability of CrxFe1-x(OH)3 is compromised and significantly inferior to that of Cr(OH)3, as demonstrated in this paper. First, Fe acts as a catalyst for the conversion of adsorbed sulfite to SO4·-, which subsequently triggers the oxidation of Cr(III) and results in the rebound of Cr(VI). The heterogeneous catalysis by Fe on the surface of CrxFe1-x(OH)3 plays a predominant role, contributing to 78% of the actual oxidation of Cr(III) among all employed catalytic processes. The presence of ambient Cl- can exacerbate the rebound effect of Cr(VI) by promoting the generation of HOCl. Furthermore, a portion of released Cr(VI) was reduced to Cr(III) by dissolved sulfite in the presence of dissolved Fe as a catalyst, thereby increasing the dissolution and migration risk associated with CrxFe1-x(OH)3. Hence, the presence of sulfites results in a significant increase in the Cr(VI) rebound and Cr(III) release from CrxFe1-x(OH)3. This challenges the conventional understanding of the stability of CrxFe1-x(OH)3.

9.
Artigo em Inglês | MEDLINE | ID: mdl-37659028

RESUMO

Intolerance of uncertainty (IU) is widely considered a transdiagnostic risk and maintaining factor for psychiatric disorders. However, little is known about the overall nature and profile of IU among adolescents. This study aims to investigate the profiles of IU among Chinese adolescents and explore their associations with sociodemographic characteristics and mental health problems. A sample of 108,540 adolescents provided data on IU, sociodemographic characteristics, and mental health via an online platform. Latent profile analysis revealed three profiles: Low IU, Medium IU, and High IU. Girls, older adolescents, and those with specific sociodemographics were more likely to belong to the "High IU" profile. Furthermore, the "High IU" profile was associated with the highest risk of several mental health problems. These findings provided valuable information for early prevention and intervention strategies targeting IU and highlighted the importance of IU-based interventions for mental health among adolescents.

10.
Front Mol Neurosci ; 16: 1231374, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37501727

RESUMO

Tuina, a method of traditional Chinese manual manipulation, is an effective alternative therapy for neuropathic pain (NP), but its analgesic mechanism remains unclear. In this study, we used resting-state functional magnetic resonance imaging (R-fMRI) to explore the analgesic mechanism of Tuina in an NP rat model. After undergoing surgery to induce chronic compression of the dorsal root ganglion (CCD), one group of rats underwent Tuina at the ipsilateral BL40 acupoint once a day for 10 min during the 25 days following surgery while another group did not. Behavioral tests were performed at baseline, on the third day following surgery, and once a week for the next 4 weeks. R-fMRI was performed at baseline and 7 days and 28 days following surgery. Behavioral testing revealed that the Tuina group presented a significant response improvement to mechanical and thermal nociception stimuli compared to the untreated group 2 weeks following CCD surgery. Interestingly, rats submitted to Tuina presented higher measures of spontaneous neuronal activity in basal forebrain region, primary somatosensory cortex barrel field, dentate gyrus, secondary somatosensory cortex, striatum, descending corticofugal pathways, and globus pallidum of the left hemisphere 4 weeks after the CCD surgery compared to rats having undergone CCD only. In addition, on the 28th day, the ALFF signals of the left dentate gyrus, left secondary somatosensory cortex, left striatum, and bilateral primary cingulate cortex were significantly increased while those in the right dentate gyrus and bilateral periaqueductal gray were significantly decreased compared to those on the 7th day. Correlation analysis showed that the ALFF values of the left descending corticofugal pathways and globus pallidum had a positive correlation with mechanical withdrawal threshold and paw withdrawal thermal latency tests. Altogether, these results indicate that NPP induced by CCD surgery affects the plasticity of the cerebral cortex, and that Tuina alleviate pain behavior by promoting cortical remodeling.

11.
BMC Cardiovasc Disord ; 23(1): 382, 2023 07 31.
Artigo em Inglês | MEDLINE | ID: mdl-37525092

RESUMO

BACKGROUND: The postoperative outcomes of transcatheter aortic valve replacement (TAVR) with the new generation of self-expanding valves (SEV) and balloon-expandable valves (BEV) remain uncertain. METHODS: We conducted a meta-analysis based on randomized controlled trials (RCTs) and propensity score-matched (PSM) studies to evaluate the performance of the new generation TAVR devices, with a focus on Edwards SAPIEN 3/Ultra BEV, Medtronic Evolut R/PRO SEV, and Boston ACURATE neo SEV. Our primary endpoints were mortality and complications at both 30 days and one year post-operation. RESULTS: A total of 4 RCTs and 14 PSM studies were included. Our findings showed no significant difference between SEV and BEV regarding 30-day and 1-year mortality rates. ACURATE SEV required less permanent pacemaker implantation (PPI) at 30-day as compared to SAPIEN BEV, while Evolut SEV required a higher rate of PPI than SAPIEN BEV. The incidence of stroke, major or life-threatening bleeding (MLTB), major vascular complications (MVC), coronary artery obstruction (CAO) and acute kidney injury (AKI) did not differ significantly between the two groups. SEV had a larger effective orifice area (EOA) and lower mean transvalvular gradients (MPG) compared to BEV. However, there was an increased risk of paravalvular leakage (PVL) associated with SEV. CONCLUSIONS: In terms of 30-day mortality, stroke, bleeding, MVC, AKI, CAO, and one-year mortality, there was comparability between the two valve types following TAVR. SEV was associated with better hemodynamic outcomes, except for a higher incidence of PVL. Compared to SAPIEN BEV, ACURATE SEV had a lower risk of PPI at 30 days, while Evolut SEV was associated with a higher risk of PPI. These findings underscore the importance of personalized valve selection.


Assuntos
Estenose da Valva Aórtica , Próteses Valvulares Cardíacas , Acidente Vascular Cerebral , Substituição da Valva Aórtica Transcateter , Humanos , Substituição da Valva Aórtica Transcateter/efeitos adversos , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/cirurgia , Estenose da Valva Aórtica/epidemiologia , Próteses Valvulares Cardíacas/efeitos adversos , Acidente Vascular Cerebral/epidemiologia , Incidência , Resultado do Tratamento , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Desenho de Prótese
12.
Front Endocrinol (Lausanne) ; 14: 1112855, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37124734

RESUMO

Introduction: The primary care management of blood glucose, blood pressure, lipid profiles, and body weight is important among patients with type 2 diabetes mellitus (T2DM) to prevent disease progression. Information on how weight changes would improve or deteriorate cardiovascular (CV) risk factors is warranted for making primary care recommendations. We aimed to investigate the changes in body weight and CV risk factors and to analyse their association in a Chinese population with T2DM. Methods: We retrieved longitudinal data between 2020 and 2021 from 1,758 adult primary care patients enrolled in a diabetic retinopathy (DR) screening programme. Linear associations of changes in body weight with CV risk factors were explored. Multivariable logistic regression analysis was performed to examine associations between different weight change categories and the worsening of CV risk factors. Results: The mean age of all the participants was 63.71 years, and over half of participants were females. During a one-year follow-up period, 24.7% of patients had a weight loss of ≥3%, while 22.2% of patients had a weight gain of ≥3%. Patients who had a weight loss of ≥3% were more likely to prevent the worsening of haemoglobin A1c (HbA1c) and triglycerides, while those who had a weight gain of ≥3% tended to have worsened HbA1c, lipid profiles, and blood pressure. Conclusion: Results from this real-world investigation suggested the concurrent need for weight loss intervention among patients who are overweight or obese and weight gain prevention among patients whose body weight falls within the normal range in the context of community-based diabetes management.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus Tipo 2 , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Masculino , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Estudos Longitudinais , Hemoglobinas Glicadas , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/complicações , População do Leste Asiático , Fatores de Risco , Peso Corporal/fisiologia , Aumento de Peso , Fatores de Risco de Doenças Cardíacas , Redução de Peso , Lipídeos
13.
Chemosphere ; 334: 138993, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37244548

RESUMO

Vacuum ultraviolet (VUV) based advanced oxidation processes (AOPs) recently attracted widespread interests. However, the role of UV185 in VUV is only considered to be generating a series of active species, while the effect of photoexcitation has long been overlooked. In this work, the role of UV185 induced high-energy excited state for the dephosphorization of organophosphorus pesticides was studied using malathion as a model. Results showed malathion degradation was highly related to radical yield, while its dephosphorization was not. It was UV185 rather than UV254 or radical yield that was responsible for malathion dephosphorization by VUV/persulfate. DFT calculation results demonstrated that the polarity of P-S bond was further increased during UV185 excitation, favoring dephosphorization while UV254 did not. The conclusion was further supported by degradation path identification. Moreover, despite the fact that anions (Cl-, SO42- and NO3-) considerably affected radical yield, only Cl- and NO3- with high molar extinction coefficient at 185 nm significantly affected dephosphorization. This study shed light on the crucial role of excited states in VUV based AOPs and provided a new idea for the development of mineralization technology of organophosphorus pesticides.


Assuntos
Praguicidas , Poluentes Químicos da Água , Compostos Organofosforados , Malation , Vácuo , Poluentes Químicos da Água/química , Raios Ultravioleta , Oxirredução
14.
Nat Chem ; 15(7): 988-997, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37202630

RESUMO

Direct and selective functionalization of hydrocarbon chains is a fundamental problem in synthetic chemistry. Conventional functionalization of C=C double bonds and C(sp3)-H bonds provides some solutions, but site diversity remains an issue. The merging of alkene isomerization with (oxidative) functionalization provides an ideal method for remote functionalization, which would provide more opportunities for site diversity. However, the reported functionalized sites are still limited and focus on a specific terminal position and internal site; new site-selective functionalization, including multi-functionalization, remains a largely unmet challenge. Here we describe a palladium-catalysed aerobic oxidative method for the multi-site programmable functionalization, involving the C=C double bond and multiple C(sp3)-H bonds, of terminal olefins via a strategy that controls the reaction sequence between alkene isomerization and oxidative functionalization. Specifically, 1-acetoxylation (anti-Markovnikov), 2-acetoxylation, 1,2-diacetoxylation and 1,2,3-triacetoxylation have been realized, accompanied by controllable remote alkenylation. This method enables available terminal olefins from petrochemical feedstocks to be readily converted into unsaturated alcohols and polyalcohols and particularly into different monosaccharides and C-glycosides.

15.
Int J Biol Macromol ; 242(Pt 3): 124965, 2023 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-37236573

RESUMO

To improve the rapid absorption capacity of coral sand soil for rainfall, a composite of carboxymethyl cellulose-g-poly (acrylic acid-co-acrylamide)/polyvinyl alcohol sponge (CMC-g-P(AA-co-AM)/PVA) was designed and synthesized by coupling CMC-g-P(AA-co-AM) granules with a PVA sponge. The results showed that the rapid water absorption of CMC-g-P (AA-co-AM)/PVA in distilled water in 1 h was 26.45 g/g, twice that of CMC-g-P(AA-co-AM) and the PVA sponge, which is suitable for short-term rainfall. In addition, the cation had a slight influence on the water absorption capacity of CMC-g-P (AA-co-AM)/PVA, which were 29.5 and 18.9 g/g in 0.9 wt% NaCl and CaCl2 solutions, respectively, indicating the great adaptability of CMC-g-P (AA-co-AM)/PVA to high­calcium coral sand. With the addition of 2 wt% CMC-g-P (AA-co-AM)/PVA, the water interception ratio of the coral sand increased from 13.8 % to 23.7 %, and 54.6 % of the total interception water remained after 15-day evaporation. Moreover, pot experiments demonstrated that 2 wt% CMC-g-P(AA-co-AM)/PVA in coral sand enhanced plant development under water scarcity, suggesting that CMC-g-P (AA-co-AM)/PVA is a promising soil amendment for coral sand soils.


Assuntos
Acrilamida , Solo , Álcool de Polivinil , Areia , Carboximetilcelulose Sódica , Água
16.
Artigo em Inglês | MEDLINE | ID: mdl-37089720

RESUMO

Background: CKD-MBD is a mineral and bone metabolism syndrome caused by chronic kidney disease. FGF23 is an important factor regulating phosphorus and is the main influencer in the CKD-MBD process. In this study, we observed the correlation among serum FGF23 and calcium, phosphorus and parathyroid hormone, and the correlation between FGF23 levels and cardiac structural changes in MHD patients. Methods: We examined serum FGF23 concentrations in 107 cases of MHD patients using the ELISA method, recorded demographic information and biochemical data, and analyzed the correlation between serum FGF23 levels and blood calcium and blood phosphorus and PTH levels. All patients were evaluated by cardiac color ultrasound, and we finally analyzed the association between the FGF23 level and cardiac structural changes. Results: In 107 cases of MHD patients, serum FGF23 levels were linearly associated with serum calcium (r = 0.27 P < 0.01) and parathyroid hormone levels (r = 0.25, P < 0.05). FGF 23 was negatively correlated with age (r = -0.44, P < 0.01).Serum FGF23 levels were correlated with right atrial hypertrophy in HD patients (P < 0.05). No correlation was found among FGF23, left ventricular hypertrophy/enlargement, and valve calcification stenosis (P > 0.05). Conclusion: Serum FGF23 showed a positive correlation among blood calcium levels and PTH levels in hemodialysis patients, and FGF23 levels can affect the incidence of right atrial hypertrophy in MHD patients.

17.
Int J Mol Sci ; 24(6)2023 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-36982427

RESUMO

Spodoptera litura is a damaging and notorious insect pest of agricultural crops that has developed resistance to various insecticides. Broflanilide is a novel pesticide with a unique mode of action that displays high efficiency against lepidopterous larvae. We here determined the baseline susceptibility of a laboratory strain of S. litura to broflanilide and 10 other popular insecticides. Furthermore, we measured susceptibility and cross-resistance using three common insecticides in 11 field-collected S. litura populations. Broflanilide caused the highest toxicity among all tested insecticides, with the laboratory strain and all field-collected populations showing high susceptibility. Moreover, no cross-resistance was detected between broflanilide and the other tested insecticides. We subsequently evaluated the sublethal effects of broflanilide and found that treatment with the 25% lethal concentration (LC25) prolonged the development duration in the larvae, reduced the pupation rate and pupae weight, and decreased egg hatchability. Finally, the activities of three detoxifying enzymes were measured in S. litura after treatment with the LC25 dose. The results suggested that enhanced cytochrome P450 monooxygenase (P450) activity could be involved in broflanilide detoxification. Overall, these findings demonstrate the strong toxicity and significant sublethal effects of broflanilide in S. litura and suggest that increased P450 activity may be associated with broflanilide detoxification.


Assuntos
Inseticidas , Praguicidas , Animais , Praguicidas/farmacologia , Inseticidas/toxicidade , Spodoptera , Diamida/farmacologia , Larva
18.
Altern Ther Health Med ; 29(3): 193-199, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36881531

RESUMO

Objective: The study intended to analyze the effects of a group nursing intervention on quality of life (QoL) of patients with epilepsy (EP) after treatment with sodium valproate combined with lamotrigine. Design: The research team performed a randomized controlled trial. Setting: The study took place in the Department of Neurology at the Affiliated Brain Hospital of Nanjing Medical University in Nanjing, Jiangsu, China. Participants: Participants were 170 EP patients at the hospital between January 2019 and August 2022. Intervention: The research team randomly assigned participants to one of two groups: (1) 85 to the intervention group, and they took part in a group nursing intervention; and (2) 85 to the control group (n = 85) and they received conventional care. Outcome Measures: To evaluate participants' risk of suicide, psychological state, and QOL, participants completed at baseline and postintervention: (1) the Mini-International Neuropsychiatric Interview (MINI), (2) the Self-Rating Scale for Psychiatric Symptoms 90 (SCL-90), and (3) the Short Form Health Survey (SF-36) To assess participants' management ability, self-efficacy, and social functioning, they also completed at those time points: (1) the EP Self-Management Behavior Scale (ESMS), (2) the General Self-Efficacy Scale (GSES), and (3) the Social Functioning Deficit Screening Scale (SDSS). Finally, the research also investigated participants' satisfaction with the nursing care. Results: The intervention group's risk of suicide decreased between baseline and postintervention, and its SCL-90 scores were significantly lower and SF-36 scores were significantly higher than those of the control group (both P < .05). In addition, the intervention group's ESMS and GSES scores were also significantly higher than those of the control group, while its SDSS score was significantly lower than that of the control group (all P < .05). Finally, the intervention group's nursing satisfaction was also significantly higher than that of the control group (P < .05). Conclusions: The group nursing intervention can effectively improve the psychological states of EP patients, reduce their pain, improve their self-management skills and QoL, provide them with better and more detailed nursing care, and facilitate the treatment and recovery of EP patients, which can have a significant value in clinical practice.


Assuntos
Epilepsia , Ácido Valproico , Humanos , Lamotrigina/uso terapêutico , Ácido Valproico/uso terapêutico , Qualidade de Vida , Prognóstico , Epilepsia/tratamento farmacológico
19.
Front Mol Neurosci ; 16: 1096930, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36866356

RESUMO

Background: Pain plays an important role in chronic ankle instability (CAI), and prolonged pain may be associated with ankle dysfunction and abnormal neuroplasticity. Purpose: To investigate the differences in resting-state functional connectivity among the pain-related brain regions and the ankle motor-related brain regions between healthy controls and patients with CAI, and explore the relationship between patients' motor function and pain. Study design: A cross-database, cross-sectional study. Methods: This study included a UK Biobank dataset of 28 patients with ankle pain and 109 healthy controls and a validation dataset of 15 patients with CAI and 15 healthy controls. All participants underwent resting-state functional magnetic resonance imaging scanning, and the functional connectivity (FC) among the pain-related brain regions and the ankle motor-related brain regions were calculated and compared between groups. The correlations between the potentially different functional connectivity and the clinical questionnaires were also explored in patients with CAI. Results: The functional connection between the cingulate motor area and insula significantly differed between groups in both the UK Biobank (p = 0.005) and clinical validation dataset (p = 0.049), which was also significantly correlated with Tegner scores (r = 0.532, p = 0.041) in patients with CAI. Conclusion: A reduced functional connection between the cingulate motor area and the insula was present in patients with CAI, which was also directly correlated with reduction in the level of patient physical activity.

20.
J Hazard Mater ; 445: 130549, 2023 03 05.
Artigo em Inglês | MEDLINE | ID: mdl-36495635

RESUMO

In this work, an excitonic energy transfer (EET) based non-radical mechanism was proposed for the degradation of organic pharmaceuticals by graphitic carbon nitride (g-C3N4) under visible light irradiation. Using diclofenac (DCF) as a model molecule, the competition between single electron transfer (SET) and EET was studied through modulating the exciton binding energy of g-C3N4. The different mechanisms of SET and EET for DCF degradation were predicted by DFT calculation, and further confirmed by their different degradation pathways. When EET played an important role, the rationality of some very popular radical scavengers, such as p-BQ, TEMPOL and furfuryl alcohol must be reconsidered. In addition, humic acid (HA) had a distinct effect on EET and SET. Specifically, HA enhanced the EET process through photosensitization, but suppressed SET through radical quenching effect. The effect of HA on DCF degradation depended on the contribution ratio of SET and ET.


Assuntos
Substâncias Húmicas , Luz , Catálise , Transporte de Elétrons , Diclofenaco/química , Preparações Farmacêuticas
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