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1.
J Exp Child Psychol ; 244: 105933, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38657522

RESUMO

Cheating is a pervasive unethical behavior. Existing research involving young children has mainly focused on contextual factors affecting cheating behavior, whereas cognitive factors have been relatively understudied. This study investigated the unique role of verbal and performance intelligence on young children's cheating behavior (N = 50; mean age = 5.73 years; 25 boys). Bootstrapping hierarchical logistic regression showed that children's Verbal IQ scores were significantly and negatively correlated with their cheating behavior above and beyond the contributions of age, gender, and Performance IQ scores. Children with higher Verbal IQ scores were less inclined to cheat. However, neither children's Performance IQ nor their Total IQ scores had a significant and unique correlation with cheating. These findings suggest that intelligence plays a significant role in children's cheating but that this role is limited to verbal intelligence only. In addition, this study highlights the need for researchers to go beyond the contextual factors to study the early development of cheating behavior.


Assuntos
Inteligência , Humanos , Masculino , Feminino , Pré-Escolar , Criança , Enganação , Comportamento Infantil/psicologia , Comportamento Verbal
2.
J Environ Manage ; 360: 121062, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38735068

RESUMO

High value-added products from organic waste fermentation have garnered increasing concern in modern society. VFAs are short-chain fatty acids, produced as intermediate products during the anaerobic fermentation of organic matter. VFAs can serve as an essential organic carbon source to produce substitutable fuels, microbial fats and oils, and synthetic biodegradable plastics et al. Extracting VFAs from the fermentation broths is a challenging task as the composition of suspensions is rather complex. In this paper, a comprehensive review of methods for VFAs production, extraction and separation are provided. Firstly, the methods to enhance VFAs production and significant operating parameters are briefly reviewed. Secondly, the evaluation and detailed discussion of various VFAs extraction and separation technologies, including membrane separation, complex extraction, and adsorption methods, are presented, highlighting their specific advantages and limitations. Finally, the challenges encountered by different separation technologies and novel approaches to enhance process performance are highlighted, providing theoretical guidance for recycling VFAs from organic wastes efficiently.


Assuntos
Ácidos Graxos Voláteis , Fermentação , Anaerobiose
3.
Molecules ; 29(8)2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38675610

RESUMO

A chemselective catalyst-free three-component 1,3-dipolar cycloaddition has been described. The unique polycyclic THPI and THIQs were creatively employed as dipolarophiles, which led to the formation of functionalized ß-tetrahydrocarboline- and tetrahydroisoquinoline-fused spirooxindoles in 60-94% of yields with excellent diastereoselectivities (10: 1->99: 1 dr). This reaction not only realizes a concise THPI- or THIQs-based 1,3-dipolar cycloaddition, but also provides a practical strategy for the construction of two distinctive spirooxindole skeletons.

4.
Angew Chem Int Ed Engl ; 63(31): e202404528, 2024 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-38722260

RESUMO

Natural photoactive systems have evolved to harness broad-spectrum light from solar radiation for critical functions such as light perception and photosynthetic energy conversion. Molecular photoswitches, which undergo structural changes upon light absorption, are artificial photoactive tools widely used for developing photoresponsive systems and converting light energy. However, photoswitches generally need to be activated by light of specific narrow wavelength ranges for effective photoconversion, which limits their ability to directly work under sunlight and to efficiently harvest solar energy. Here, focusing on azo-switches-the most extensively studied photoswitches, we demonstrate effective solar E→Z photoisomerization with photoconversions exceeding 80 % under unfiltered sunlight. These sunlight-driven azo-switches are developed by rendering the absorption of E isomers overwhelmingly stronger than that of Z isomers across a broad ultraviolet to visible spectrum. This unusual type of spectral profile is realized by a simple yet highly adjustable molecular design strategy, enabling the fine-tuning of spectral window that extends light absorption beyond 600 nm. Notably, back-photoconversion can be achieved without impairing the forward solar isomerization, resulting in unique light-reversible solar switches. Such exceptional solar chemistry of photoswitches provides unprecedented opportunities for developing sustainable light-driven systems and efficient solar energy technologies.

5.
J Viral Hepat ; 30(5): 427-436, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36562258

RESUMO

Although there are therapeutic advantages for hepatitis B virus (HBV) withpegylated interferon alpha (peg-IFNα) treatment compared with nucleos(t)ide analog (NAs) therapy, the effect difference in infected population at different phases has not been well established. We studied the clinical efficacy of peg-IFNα in two populations with HBV infection, including inactive HBsAg carrier (IHC) and chronic hepatitis B (CHB). A total of 328 HBV-infected patients were included in this real-world analysis. Patients were divided into two groups according to the infected stages. Peg-IFNα monotherapy or combination therapy with NAs were used in IHCs, and peg-IFNα added-on NAs therapy was applied to patients with CHB. The primary efficacy endpoint was HBsAg loss at Week 24. Results: The Kaplan-Meier cumulative rates of HBsAg loss were 39.50% (n = 47/119) in IHC group and 28.71% (n = 60/209) in CHB group at Week 24 (p < .05). After Propensity Score Matching (PSM), the HBsAg loss rates were 36.84% (n = 35/95) and 32.63% (n = 31/95), respectively (p > .05). Patients with baseline HBsAg level < 100 IU/ml achieved higher rates of HBsAg clearance in IHC and CHB group (before PSM: 47.44% vs. 42.86%, after PSM: 49.12% vs. 45.83%, all p values > .05). Baseline HBsAg level and its level decline from baseline to Week 12 can be as the predictors for HBsAg loss at Week 24 in both groups. Hence, the efficacy of HBsAg clearance was broadly similar between IHCs and NA-treated CHB patients during the early peg-IFNα therapy. A significant downward trend of HBsAg level was observed in both groups during peg-IFNα therapy.


Assuntos
Vírus da Hepatite B , Hepatite B Crônica , Humanos , Hepatite B Crônica/tratamento farmacológico , Antivirais/uso terapêutico , Antígenos de Superfície da Hepatite B , Interferon-alfa/uso terapêutico , Resultado do Tratamento , Polietilenoglicóis/uso terapêutico , Antígenos E da Hepatite B , DNA Viral
6.
FASEB J ; 36(2): e22162, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-35061304

RESUMO

Apoptosis of alveolar epithelial cells is a critical initial link in the pathogenesis of acute lung injury (ALI), recent studies have revealed that Methyl-CpG binding domain protein 2 (MBD2) was involved in the execution of apoptosis, yet its role in ALI remained unclear. In the present study, we aim to explore the role and mechanism of MBD2 in the pathogenesis of ALI. We have found that MBD2 expression, in parallel to apoptosis, increased in alveolar epithelial cells of mice treated with LPS, knockout of MBD2 reduced apoptosis and protected mice from LPS-induced ALI. In MLE-12 cells, a cell line of murine alveolar epithelial cells, LPS induced MBD2 expression and apoptosis in a dose- and time-dependent manner. Knockdown of MBD2 with shRNA alleviated, while overexpression of MBD2 increased LPS-induced apoptosis. Mechanistically, intracellular zinc level decreased when MLE-12 cells were treated with LPS. MBD2 knockdown restored intracellular zinc level after LPS treatment, and MBD2 overexpression further aggravated LPS-induced intracellular zinc loss. Metal transcription factor 1 (MTF1) is a critical transcription factor in charge of intracellular zinc efflux. LPS treatment induced MTF1 expression both in vivo and in vitro. Inhibition of MTF1 reduced LPS-induced apoptosis in MLE-12 cells. MBD2 could bind to the promoter region of MTF1 and promote MTF1 expression. Collectively, these data indicated that loss of MBD2-ameliorated LPS-induced alveolar epithelial cell apoptosis and ALI in mice via modulating intracellular zinc homeostasis by upregulating MTF1.


Assuntos
Lesão Pulmonar Aguda/genética , Células Epiteliais Alveolares/metabolismo , Apoptose/genética , Proteínas de Ligação a DNA/genética , Homeostase/genética , Zinco/metabolismo , Células Epiteliais Alveolares/efeitos dos fármacos , Animais , Apoptose/efeitos dos fármacos , Linhagem Celular , Regulação da Expressão Gênica/efeitos dos fármacos , Regulação da Expressão Gênica/genética , Homeostase/efeitos dos fármacos , Lipopolissacarídeos/farmacologia , Masculino , Camundongos , Regiões Promotoras Genéticas/efeitos dos fármacos , Regiões Promotoras Genéticas/genética , RNA Interferente Pequeno/genética , Fatores de Transcrição/metabolismo , Regulação para Cima/efeitos dos fármacos , Regulação para Cima/genética
7.
Dev Sci ; 26(2): e13313, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-35962719

RESUMO

There is extensive research on the development of cheating in early childhood but research on how to reduce it is rare. The present preregistered study examined whether telling young children about a story character's emotional reactions towards cheating could significantly reduce their tendency to cheat (N = 400; 199 boys; Age: 3-6 years). Results showed that telling older kindergarten children about the story character's negative emotional reaction towards rule violation significantly reduced cheating, but telling them about the positive emotional reaction towards rule adherence did not. These results show that children as young as age 5 are able to use information about another child's emotional reaction to guide their own moral behavior. In particular, highlighting another child's negative emotional reaction towards a moral transgression may be an effective way to reduce cheating in early childhood. This finding, along with earlier cheating reduction findings, suggests that although cheating is common in early childhood, simple methods can reduce its occurrence.


Assuntos
Enganação , Princípios Morais , Masculino , Humanos , Criança , Pré-Escolar , Audição , Causalidade , Escolaridade
8.
Dev Sci ; 25(3): e13190, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34750930

RESUMO

Cheating is a common human behavior but few studies have examined its emergence during early childhood. In three preregistered studies, a challenging math test was administered to 5- to 6-year-old children (total N = 500; 255 girls). An answer key was present as children completed the test, but they were instructed to not peek at it. In Study 1, many children cheated, but manipulations that reduced the answer key's accessibility in terms of proximity and visibility led to less cheating. Two follow-up studies showed that the answer key's visibility played a more significant role than its proximity. These findings suggest that subtle and seemingly insignificant alterations of the physical environment can effectively nudge young children away from acting dishonestly.


Assuntos
Enganação , Criança , Pré-Escolar , Feminino , Humanos , Masculino
9.
Neurourol Urodyn ; 41(3): 787-796, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35170790

RESUMO

INTRODUCTION: Bladder outlet obstruction (BOO) is a common problem that can affect bladder structure and function. Currently, there is no effective drugs available to prevent BOO-induced remodeling. Previous reports have demonstrated that the pathogenesis of BOO is associated with macrophage infiltration and polarization, which is physiologically dependent on colony-stimulating factor 1 receptor (CSF-1R) activation. Here we utilized a highly selective CSF-1R inhibitor, GW2580, to determine its preventive effects on BOO-induced remodeling. METHODS: A total of 24 Sprague-Dawley rats were randomly divided into sham, BOO + vehicle, and BOO + GW2580 group. GW2580 or vehicle control was administrated by oral gavage at daily doses of 40 mg/kg for 6 weeks. Bladder samples were collected for histopathology, immunohistochemistry, immunofluorescence, western blotting, and flow cytometry analysis. RESULTS: Our results demonstrated that bladder fibrosis was ameliorated by GW2580 compared with the vehicle group (22.01% ± 5.13% vs. 32.15% ± 7.24%, p < 0.01). Furthermore, treatment with GW2580 induced an inhibition of macrophage infiltration (4.41% ± 1.28% vs. 13.57% ± 3.42%, p < 0.001) and M2 macrophage polarization (10.67% ± 4.15% vs. 28.59% ± 6.38%, p < 0.001). There was also a decrease of profibrotic F4/80+  α-smooth muscle actin+ (α-SMA+ ) macrophage to myofibroblast transition (9.11% ± 2.58% vs. 17.33% ± 4.01%, p < 0.001) and CD163+ TGF-ß1+ cells (7.68% ± 2.10% vs. 14.17% ± 4.09%, p < 0.01) in the GW2580 group when compared with the vehicle group. CONCLUSIONS: In summary, our findings showed that GW2580 is a worthwhile candidate for a follow-up study to test in the treatment of BOO-induced remodeling.


Assuntos
Obstrução do Colo da Bexiga Urinária , Animais , Modelos Animais de Doenças , Feminino , Seguimentos , Humanos , Fator Estimulador de Colônias de Macrófagos/farmacologia , Fator Estimulador de Colônias de Macrófagos/uso terapêutico , Masculino , Ratos , Ratos Sprague-Dawley , Bexiga Urinária
10.
Dev Sci ; 23(5): e12930, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-31811686

RESUMO

Research on moral socialization has largely focused on the role of direct communication and has almost completely ignored a potentially rich source of social influence: evaluative comments that children overhear. We examined for the first time whether overheard comments can shape children's moral behavior. Three- and 5-year-old children (N = 200) participated in a guessing game in which they were instructed not to cheat by peeking. We randomly assigned children to a condition in which they overheard an experimenter tell another adult that a classmate who was no longer present is smart, or to a control condition in which the overheard conversation consisted of non-social information. We found that 5-year-olds, but not 3-year-olds, cheated significantly more often if they overheard the classmate praised for being smart. These findings show that the effects of ability praise can spread far beyond the intended recipient to influence the behavior of children who are mere observers, and they suggest that overheard evaluative comments can be an important force in shaping moral development.


Assuntos
Comportamento Infantil , Desenvolvimento Moral , Reforço Verbal , Adulto , Pré-Escolar , Enganação , Feminino , Humanos , Masculino , Socialização , Estudantes/psicologia
11.
Exp Cell Res ; 371(1): 196-204, 2018 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-30098334

RESUMO

T helper 17 (Th17) cells has proven to be crucial in the pathogenesis of severe asthma. Although it is known that Suppressor of cytokine signaling 3 (SOCS3) is involved in differentiation of Th17 cells but, how it affects severe asthma is uncertain. Since previous studies indicated that Methtyl-CpG binding domain protein 2 (MBD2) null mice was deficient in Th17 cell differentiation, the aim of the present study was to understand how MBD2 interacts with SOCS3 to regulate Th17 cell differentiation in severe asthma. Here, we show that SOCS3 expression was significantly decreased in Th17-mediated severe asthmatic mice, accompanied by elevated STAT3 phosphorylation and RORγt expression. Knock-down of SOCS3 promoted the differentiation of naïve T cells into Th17 cells through STAT3/RORγt pathway. Meanwhile, MBD2 was overexpressed in Th17-mediated severe asthmatic mice. Intervention of MBD2 expression lead to a negative change of SOCS3 expression, whereas the differentiation of Th17 cells showed positive change. In addition, MBD2 knockout (MBD2-KO) mice displayed increased SOCS3 expression and decreased Th17 differentiation after severe asthma modeling. Taken together, our results suggest that MBD2 might facilitate Th17 cell differentiation via down-regulating SOCS3 expression in severe asthma. These findings uncover new roles for SOCS3 and MBD2, and provide a potential target for treatment of severe asthma.


Assuntos
Asma/genética , Proteínas de Ligação a DNA/genética , Pulmão/imunologia , Proteína 3 Supressora da Sinalização de Citocinas/genética , Células Th17/imunologia , Alérgenos/administração & dosagem , Animais , Asma/induzido quimicamente , Asma/imunologia , Asma/patologia , Diferenciação Celular , Proteínas de Ligação a DNA/imunologia , Modelos Animais de Doenças , Feminino , Regulação da Expressão Gênica , Humanos , Lipopolissacarídeos/administração & dosagem , Pulmão/patologia , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Membro 3 do Grupo F da Subfamília 1 de Receptores Nucleares/genética , Membro 3 do Grupo F da Subfamília 1 de Receptores Nucleares/imunologia , Ovalbumina/administração & dosagem , Fosforilação , Pyroglyphidae/química , Pyroglyphidae/imunologia , Fator de Transcrição STAT3/genética , Fator de Transcrição STAT3/imunologia , Índice de Gravidade de Doença , Transdução de Sinais , Proteína 3 Supressora da Sinalização de Citocinas/imunologia , Células Th17/patologia
12.
J Exp Child Psychol ; 177: 187-196, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30216777

RESUMO

The current research examined whether young children engage in unethical behavior to a greater extent when they have a prosocial justification for doing so. Participants (3- and 5-year-olds, N = 240) played a guessing game in which they were tempted to cheat to win a prize after promising not to do so. In Study 1, children were randomly assigned to either an experimental prosocial condition in which they were told that the prize would be given to a child who was unable to play the game or a control condition in which they were told that they would get to keep the prize for themselves. The 5-year-olds, but not the 3-year-olds, were more likely to cheat in the prosocial condition than in the control condition. Studies 2a and 2b revealed that older children's tendency to engage in prosocial cheating was driven by their concern with signaling to others that they are prosocial. These findings suggest that the tendency to act unethically to benefit others emerges early in development and that this tendency may reflect children's interest in prosocial signaling.


Assuntos
Comportamento Infantil/psicologia , Enganação , Ética , Comportamento Social , Pré-Escolar , Feminino , Humanos , Masculino , Psicologia da Criança
13.
J Exp Child Psychol ; 188: 104679, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31499456

RESUMO

Although there has been extensive research on how children distribute resources with respect to quantity, little is known about how these decisions are affected by resource quality. The current research addressed this question by conducting two preregistered studies in which 3-, 5-, and 7-year-old children (total N = 360) made anonymous distributions of high-quality and low-quality items. Quantitative fairness entailed distributing an equal number of items irrespective of quality, and qualitative fairness entailed distributing equal numbers of high-quality and low-quality items. In Study 1, a majority of 7-year-olds distributed resources equally between themselves and another child in terms of both quality and quantity, whereas a majority of 3- and 5-year-olds did so only in terms of quantity while giving themselves a qualitative advantage. In Study 2, a majority of children in all three age groups distributed resources equally between two other children in terms of both quality and quantity. Together with prior findings, these results suggest that children selectively ignore the dimension of quality when it serves their own interests. The results also show, for the first time, that by 7 years of age children consider quality even at the expense of their own interests and that children as young as 3 years have the capacity to take into account resource quality when making distributions.


Assuntos
Tomada de Decisões , Alocação de Recursos , Criança , Pré-Escolar , Família , Feminino , Humanos , Masculino
14.
Mediators Inflamm ; 2017: 6249685, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28808358

RESUMO

Th17 cells and IL-17 participate in airway neutrophil infiltration characteristics in the pathogenesis of severe asthma. Methyl-CpG binding domain protein 2 (MBD2) expression increased in CD4+ T cells in peripheral blood samples of asthma patients. However, little is known about that epigenetic regulation of MBD2 in both immunological pathogenesis of experimental severe asthma and CD4+ T cell differentiation. Here, we established a neutrophil-predominant severe asthma model, which was characterized by airway hyperresponsiveness (AHR), BALF neutrophil granulocyte (NEU) increase, higher NEU and IL-17 protein levels, and more Th17 cell differentiation. In the model, MBD2 and IRF4 protein expression increased in the lung and spleen cells. Under overexpression or silencing of the MBD2 and IRF4 gene, the differentiation of Th17 cells and IL-17 secretion showed positive changes. IRF4 protein expression showed a positive change with overexpression or silencing of the MBD2 gene, whereas there was no significant difference in the expression of MBD2 under overexpression or silencing of the IRF4 gene. These data provide novel insights into epigenetic regulation of severe asthma.


Assuntos
Asma/metabolismo , Proteínas de Ligação a DNA/metabolismo , Fatores Reguladores de Interferon/metabolismo , Pulmão/metabolismo , Células Th17/metabolismo , Animais , Proteínas de Ligação a DNA/genética , Feminino , Imuno-Histoquímica , Fatores Reguladores de Interferon/genética , Interleucina-17/metabolismo , Interleucina-4/metabolismo , Camundongos , Camundongos Endogâmicos C57BL , Receptor ErbB-2/genética , Receptor ErbB-2/metabolismo
15.
Sci Total Environ ; 919: 170385, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38364585

RESUMO

Microbial lipids have attracted considerable interest owing to their favorable environmental sustainability benefits. In laboratory-scale studies, the factors impacting lipid production in oleaginous yeasts, including culture conditions, nutrients, and low-cost substrates, have been extensively studied. However, there were several different modes of microbial lipid cultivation (batch culture, fed-batch culture, continuous culture, and other novel culture modes), making it difficult to comprehensively analyze impacting factors under different cultivation modes on a laboratory scale. And only few cases of microbial lipid production have been conducted at the pilot scale, which requires more technological reliability assessments and environmental benefit evaluations. Thus, this study summarized the different culture modes and cases of scale-up processes, highlighting the role of the nutrient element ratio in regulating culture mode selection and lipid accumulation. The cost distribution and environmental benefits of microbial lipid production by oleaginous yeasts were also investigated. Our results suggested that the continuous culture mode was recommended for the scale-up process because of its stable lipid accumulation. More importantly, exploring the continuous culture mode integrated with other efficient culture modes remained to be further investigated. In research on scale-up processes, low-cost substrate (organic waste) application and optimization of reactor operational parameters were key to increasing environmental benefits and reducing costs.


Assuntos
Lipídeos , Leveduras , Reprodutibilidade dos Testes , Biocombustíveis
16.
Wei Sheng Wu Xue Bao ; 53(7): 691-701, 2013 Jul 04.
Artigo em Chinês | MEDLINE | ID: mdl-24195376

RESUMO

OBJECTIVE: A new naringinase-producing strain, JMUdb058 was identified and characterized. METHODS: The strain was identified by morphological observation and 28S rDNA homogeneous analysis. Naringinase was identified by monitoring the hydrolysis of naringin to prunin and naringenin using a reversed phase High Performance Liquid Chromatography (HPLC). The regulation of naringinase expression was studied by measuring naringinase activity of 11 different carbon sources and 7 nitrogen sources in shaking cultivation. The naringinase-producing capacity was investigated in both solid-state fermentation and submerged fermentation. RESULTS: The macro-morphology and micro-morphology of JMUdb058 corresponded to the characteristics of Aspergillus section Nigri Gams, and the 28S rDNA sequences showed homogeneity at 100% to Aspergillus aculeatus. Crude enzymes prepared by both submerged fermentation and solid-state fermentation could hydrolyze naringin to prunin and naringenin. In addition, the enzyme could remove naringin from citrus juice effectively. Carbon resources, including hesperidin, naringin, rutin and rhamnose, and organic nitrogen resources, i. e., tryptone, soybean meal, yeast extract and corn syrup were shown to express the naringinase. The strain had an outstanding ability to yield naringinase in the solid-state fermentation, which showed an alpha-L-rhamnosidase activity of 5903 U/gds by HPLC, and the naringinase of 1939U/gds by HPLC and 72232 U/gds by Davis method. CONCLUSION: It is the first time to report a stain of Aspergillus aculeatus can produce naringinase, carbon source containing rhamnose groups are able to induce the enzyme expression. The stain JMUdb058 is a new microorganism source for high yield of naringinase, in particularly by the solid-state fermentation.


Assuntos
Aspergillus/enzimologia , Aspergillus/isolamento & purificação , Proteínas Fúngicas/metabolismo , Complexos Multienzimáticos/metabolismo , Microbiologia do Solo , beta-Glucosidase/metabolismo , Aspergillus/classificação , Aspergillus/genética , Fermentação , Flavanonas/metabolismo , Proteínas Fúngicas/química , Proteínas Fúngicas/genética , Dados de Sequência Molecular , Complexos Multienzimáticos/química , Complexos Multienzimáticos/genética , Filogenia , Especificidade por Substrato , beta-Glucosidase/química , beta-Glucosidase/genética
17.
Spectrochim Acta A Mol Biomol Spectrosc ; 284: 121770, 2023 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-36067622

RESUMO

Quinoline, as a refractory and toxic organic pollutant in coking wastewater, causes great harm to the environment and human health even in trace amount. To realize the selective and sensitive detection of quinoline in coking wastewater, a novel molecularly imprinted fluorescent nanopomegranate with carbon dots (CDs) as seeds and fluorescence source (CD-MIP) was prepared, using quinoline as the template, and N-(ß-aminoethyl)-γ-aminopropyl trimethoxysilane (KH792) as the monomer. The preparation and detection conditions of CD-MIP were systematically optimized. The structure and detection performance of CD-MIP were investigated in detail. The resulting CD-MIP exhibits excellent photoluminescence performance, high detection sensitivity, good selectivity and reproducibility towards quinoline. Under the optimized conditions, the fluorescence intensity of CD-MIP shows a satisfying linearity with quinoline concentration in the range of 20-200 mg/L with a detection limit of 6.7 mg/L. Owing to the existence of imprinted cavities that highly match with quinoline, a high imprinting factor (3.46) for CD-MIP was obtained. In addition, CD-MIP represents a greater affinity towards quinoline than towards other analogues, as well as an outstanding anti-interference capability. For trace analysis in real coking wastewater, CD-MIP also gives satisfactory results. Therefore, CD-MIP shows promising application in the selective detection of trace quinoline in wastewater.


Assuntos
Coque , Poluentes Ambientais , Impressão Molecular , Pontos Quânticos , Quinolinas , Carbono/química , Humanos , Limite de Detecção , Impressão Molecular/métodos , Pontos Quânticos/química , Reprodutibilidade dos Testes , Águas Residuárias
18.
Immun Inflamm Dis ; 11(1): e760, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36705416

RESUMO

BACKGROUND: Infections with fungi, such as Aspergillus species, have been found as common complications of viral pneumonia. This study aims to determine the risk factors of fungal superinfections in viral pneumonia patients using meta-analysis. OBJECTIVE: This study aims to determine the risk factors of fungal infection s in viral pneumonia patients using meta-analysis. METHODS: We reviewed primary literature about fungal infection in viral pneumonia patients published between January 1, 2010 and September 30, 2020, in the Chinese Biomedical Literature, Chinese National Knowledge Infrastructure, Wanfang (China), Cochrane Central Library, Embase, PubMed, and Web of Science databases. These studies were subjected to an array of statistical analyses, including risk of bias and sensitivity analyses. RESULTS: In this study, we found a statistically significant difference in the incidence of fungal infections in viral pneumonia patients that received corticosteroid treatment as compared to those without corticosteroid treatment (p < .00001). Additionally, regarding the severity of fungal infections, we observed significant higher incidence of invasive pulmonary aspergillosis (IPA) in patients with high Acute Physiology and Chronic Health Evaluation (APACHE) II scores (p < .001), tumors (p = .005), or immunocompromised patients (p < .0001). CONCLUSIONS: Our research shows that corticosteroid treatment was an important risk factor for the development of fungal infection in patients with viral pneumonia. High APACHE II scores, tumors, and immunocompromised condition are also important risk factors of developing IPA. The diagnosis of fungal infection in viral pneumonia patients can be facilitated by early serum galactomannan (GM) testing, bronchoalveolar lavage fluid Aspergillus antigen testing, culture, and biopsy.


Assuntos
Aspergilose Pulmonar Invasiva , Neoplasias , Superinfecção , Humanos , Superinfecção/complicações , Sensibilidade e Especificidade , Aspergillus , Aspergilose Pulmonar Invasiva/diagnóstico , Aspergilose Pulmonar Invasiva/microbiologia , Fatores de Risco
19.
ChemSusChem ; 16(18): e202300582, 2023 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-37278140

RESUMO

Photoswitches can absorb solar photons and store them as chemical energy by photoisomerization, which is regarded as a promising strategy for photochemical solar energy storage. Although many efforts have been devoted to photoswitch discovery, the solar efficiency, a critical fundamental parameter assessing the solar energy conversion ability, has attracted little attention and remains to be studied comprehensively. Here we provide a systematic evaluation of the solar efficiency of typical azo-switches including azobenzenes and azopyrazoles, and gain a comprehensive understanding on its decisive factors. All the efficiencies are found below 1.0 %, far from the proposed limits for molecular solar thermal energy storage systems. Azopyrazoles exhibit remarkably higher solar efficiencies (0.59-0.94 %) than azobenzenes (0.11-0.43 %), benefiting from largely improved quantum yield and photoisomerization yield. Light filters can be used to improve the isomerization yield but inevitably narrow the usable range of solar spectrum, and these two contradictory effects ultimately reduce solar efficiencies. We envision this conflict could be resolved through developing azo-switches that afford high isomerization yields by absorbing wide-spectrum solar energy. We hope this work could promote more efforts to improve the solar efficiency of photoswitches, which is highly relevant to the prospect for future applications.

20.
J Cancer Res Clin Oncol ; 149(10): 7187-7196, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36884116

RESUMO

PURPOSE: To investigate the value of 18F-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (18F-FDG PET/CT) in the differential diagnosis of lymphoma in patients with fever of unknown origin (FUO) accompanied by lymphadenopathy and to develop a simple scoring system to distinguish lymphoma from other etiologies. METHODS: A prospective study was conducted on patients with classic FUO accompanied by lymphadenopathy. After standard diagnostic procedures, including PET/CT scan and lymph-node biopsy, 163 patients were enrolled and divided into lymphoma and benign groups according to the etiology. The diagnostic utility of PET/CT imaging was evaluated, and beneficial parameters that could improve diagnostic effectiveness were identified. RESULTS: The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of PET/CT in diagnosing lymphoma in patients with FUO accompanied by lymphadenopathy were 81.0, 47.6, 59.3, and 72.7%, respectively. The lymphoma prediction model combining high SUVmax of the "hottest" lesion, high SUVmax of the retroperitoneal lymph nodes, old age, low platelet count, and low ESR had an area under the curve of 0.93 (0.89-0.97), a sensitivity of 84.8%, a specificity of 92.9%, a PPV of 91.8%, and an NPV of 86.7%. There was a lower probability of lymphoma for patients with a score < 4 points. CONCLUSIONS: PET/CT scans show moderate sensitivity and low specificity in diagnosing lymphoma in patients with FUO accompanied by lymphadenopathy. The scoring system based on PET/CT and clinical parameters performs well in differentiating lymphoma and benign causes and can be used as a reliable noninvasive tool. REGISTRATION NUMBER: This study on FUO was registered on http://www. CLINICALTRIALS: gov on January 14, 2014, with registration number NCT02035670.


Assuntos
Febre de Causa Desconhecida , Linfadenopatia , Linfoma , Humanos , Diagnóstico Diferencial , Febre de Causa Desconhecida/diagnóstico por imagem , Febre de Causa Desconhecida/etiologia , Fluordesoxiglucose F18 , Linfadenopatia/diagnóstico por imagem , Linfadenopatia/etiologia , Linfoma/diagnóstico , Linfoma/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Tomografia por Emissão de Pósitrons/métodos , Estudos Prospectivos , Compostos Radiofarmacêuticos , Estudos Retrospectivos
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