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1.
Mitochondrial DNA B Resour ; 9(10): 1400-1403, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39421296

RESUMO

Arytera littoralis Blume 1847 is an evergreen small tree belonging to the Sapindaceae family. It is distributed in South China to SE Asia and the Solomon Islands. However, the chloroplast genome of A. littoralis has yet to be reported. In this study, the complete chloroplast genome of Arytera littoralis was determined. The total genome size was 161,091 bp in length, consisting of two inverted repeats (IRs) (28,432 bp) separated by the large single-copy (LSC) (85,737 bp) and small single-copy (SSC) (18,490 bp) regions. The genome contained 133 genes, including 87 protein-coding genes, 37 tRNA genes, and eight rRNA genes. The GC content of the complete chloroplast genome was 37.8%. A maximum-likelihood (ML) phylogenetic tree of A. littoralis and 13 related species from the family Sapindaceae indicated that A. littoralis was close to a clade composed of Sapindus, Nephelium, Litchi, and Dimocarpus. This study will offer essential genetic resources of A. littoralis and provide insights into the phylogeny and evolution of Sapindaceae.

2.
Carbohydr Polym ; 346: 122628, 2024 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-39245529

RESUMO

The traditional lignocellulose pretreatment by deep eutectic solvent (DES) was usually conducted under higher acidic, alkaline and high temperature conditions, which leads to the severe degradation of xylan, decreasing the subsequent reducing sugar concentration by enzymatic hydrolysis and further ethanol fermentation. It is essential to develop an effective DES that selectively removes lignin while preventing excessive xylan degradation during lignocellulose pretreatment. An effective ethylene glycol-assisted ternary DES was designed to treat corn straw (CS) at 100 °C for 6 h. 65.51 % lignin removal was achieved, over 93.46 % cellulose and 50.22 % xylan were retained in pretreated CS with excellent enzymatic digestibility (glucan conversion of 77.05 % and xylan conversion of 71.72 %), total sugar conversion could reach 75.93 %, implying the unique capacity to selectively remove lignin while preserving carbohydrate components. Furthermore, the universality of the selective removal of lignin and effective retention of xylan by ternary DES has been successfully proven by other polyols. The enzymatic hydrolysate of ternary DES-pretreated CS fermented over our genetically engineered yeast strain SFA1OE gave a high ethanol yield of 0.488 g/g total reducing sugar, demonstrating the effectiveness of the polyol-assisted ternary DES pretreatment in achieving high-efficiency cellulosic ethanol production.


Assuntos
Solventes Eutéticos Profundos , Etanol , Fermentação , Lignina , Xilanos , Zea mays , Lignina/química , Etanol/química , Etanol/metabolismo , Xilanos/química , Hidrólise , Zea mays/química , Solventes Eutéticos Profundos/química , Polímeros/química , Saccharomyces cerevisiae/metabolismo , Celulose/química , Solventes/química
3.
Biosens Bioelectron ; 267: 116785, 2024 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-39305821

RESUMO

High-affinity antibodies are crucial in biosensors, disease diagnostics, therapeutic drug development, and immunological analysis, making the enhancement of antibody affinity a key research focus within the field. Computer-aided design is recognized as a time-saving and labor-efficient method for nanobodies in vitro affinity maturation. Compared to experimental mutagenesis techniques, it is advantageous due to the elimination of the need for laborious library construction and screening processes. However, these approaches are constrained by structural prediction since inaccuracy in structure could readily result in maturation failures. Herein, a novel nanobodies modification method for in vitro affinity maturation, utilizing the high accuracy prediction of AlphaFold2, was employed to rapidly transform a low affinity nanobody against enrofloxacin (ENR) into one with high affinity. The molecular docking results revealed a 1.5- to 2.5-fold increase in the number of noncovalent interactions of modified nanobodies, accompanied by a reduction in binding free energy ranging from 14.1 to 62.6%. The evaluation results from ELISA and BLI indicated that the affinity of the modified nanobodies had been enhanced by 6.2-91.6 times compared to the template nanobody. Furthermore, the modified nanobodies were employed for the detection of ENR-spiked coastal fish samples. In summary, this research proposed a nanobodies modification method from a new perspective, endowing its great application potential in biosensors, food safety, and environmental monitoring.

4.
Food Chem ; 460(Pt 3): 140775, 2024 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-39121764

RESUMO

Based on salting-out assisted liquid-liquid extraction (SALLE) and high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS), a simple, rapid pretreatment without complex clean-up for the determination of 22 veterinary drug residues in aquatic products was developed and validated. In order to improve the efficiency of the method, the key procedural parameters of SALLE were fabricated. Na2EDTA-Mcllvaine buffer/ACN was used as the extraction solvent, anhydrous MgSO4 and NaCl as the extraction salts. The relationship between extraction efficiency and logD was initially evaluated during the optimization process. This study was well validated in various aquatic samples such as bass, large yellow croaker, carp, and shrimp, the limits of detection (LOD) and accuracy for all compounds ranged from 0.5 to 1.0 µg/kg, 71.4% to 120%. This method has the advantages of rapidity, simplicity, low cost, and high efficiency, and has broad potential for risk monitoring and evaluation of veterinary antibiotics in aquatic products.


Assuntos
Antibacterianos , Resíduos de Drogas , Peixes , Contaminação de Alimentos , Extração Líquido-Líquido , Alimentos Marinhos , Espectrometria de Massas em Tandem , Drogas Veterinárias , Cromatografia Líquida de Alta Pressão/métodos , Espectrometria de Massas em Tandem/métodos , Extração Líquido-Líquido/métodos , Antibacterianos/análise , Animais , Resíduos de Drogas/análise , Drogas Veterinárias/análise , Contaminação de Alimentos/análise , Alimentos Marinhos/análise , Carpas , Limite de Detecção , Perciformes , Penaeidae/química , Espectrometria de Massa com Cromatografia Líquida
5.
Food Chem ; 460(Pt 3): 140742, 2024 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-39126953

RESUMO

The study aimed to create a fish-derived protein gel with inulin/konjac glucomannan (KGM) mixture for dysphagia. The inulin/KGM complex improved the swallowing properties of myofibrillar protein (MP) emulsion gel. Interactions, physicochemical, and flavor properties were analyzed. Inulin/KGM mixture inhibited hydrophobic groups exposure, and maintained MP structure during thermal induction. Inulin/KGM-protein gels exhibited shear-thinning behavior, low deformation resistance and hardness. IDDSI test also indicated inulin/KGM gels is suitable for dysphagia. Inulin/KGM mixture improved flavor by increasing ethanol and 2-octen-ol while decreasing ichthyological substances such as hexanal and nonanal, enhancing the sensory experience of patients with dysphagia. An 8% inulin/KGM mixture effectively modulated mechanical, swallowing, and sensory properties of MP emulsion gels, offering insights for future marine-derived dysphagia foods development.


Assuntos
Transtornos de Deglutição , Proteínas de Peixes , Géis , Inulina , Mananas , Inulina/química , Mananas/química , Humanos , Géis/química , Proteínas de Peixes/química , Animais , Transtornos de Deglutição/fisiopatologia , Paladar , Masculino , Peixes , Feminino , Deglutição/efeitos dos fármacos , Adulto
6.
J Cancer ; 15(15): 4818-4837, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39132150

RESUMO

Background: Lung adenocarcinoma (LUAD) is the predominant pathological subtype of non-small cell lung cancer (NSCLC). The four primary forms of RNA adenosine modifications, N6-methyladenosine (m6A), N1-methyladenosine (m1A), alternative polyadenylation (APA) and adenosine-to-inosine (A-to-I) RNA editing, play a critical role in tumor progression. However, the clinical significance of RNA modification writer-related long non-coding RNAs (lncRNAs) in LUAD remains unclear. Methods: The Cancer Genome Atlas (TCGA) database was used to obtain transcriptomic and clinicopathological data. Univariate Cox regression analysis, consensus cluster analysis, and least absolute shrinkage and selection operator (LASSO) Cox regression were used to establish the molecular subtypes and prognostic signatures of LUAD based on the expression levels of lncRNAs. ESTIMATE, CIBERSORT, ssGSEA, and TIDE algorithms were used to investigate immune cell infiltration and immunotherapy. In addition, IC50 of chemotherapeutic agents were calculated for different risk subgroups using the "pRRophetic" R package. Finally, the expression of prognosis-associated lncRNAs in lung cancer tissues was verified using qPCR. Results: A prognostic risk signature containing seven lncRNAs associated with four types of RNA modification writers was established. The high-risk group had a poorer prognosis and higher clinicopathological grade. Most immune checkpoint genes and immune cell infiltration differed significantly between the two risk groups. The high-risk group had a higher tumor mutation burden (TMB), lower TIDE score, and was more sensitive to immunotherapy. Conclusion: We developed an RNA modification writer-related seven-lncRNA signature prognostic model that was associated with prognosis, tumor microenvironment, and response to immunotherapy in LUAD patients. Among them, LINC01352, AC024075.1, AC005070.3, AL133445.2, AC005856.1, and LINC00968 were downregulated in LUAD, whereas AC092168.2 was upregulated. This model may be a valuable tool for personalized LUAD therapies.

7.
Anal Chim Acta ; 1319: 342986, 2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39122284

RESUMO

BACKGROUND: Due to the serious issue of ofloxacin (OFL) abuse, there is an increasingly urgent need for accurate and rapid detection of OFL. Immunoassay has become the "golden method" for detecting OFL in complex matrix beneficial to its applicability for a large-scale screening, rapidity, and simplicity. However, traditional antibodies used in immunoassay present challenges such as time-consuming preparation, unstable sensitivity and specificity, and difficulty in directional evolution. In this paper, we successfully developed an OFL detection method based on a shark-derived single-domain antibody (ssdAb) to address these issues. RESULTS: Using phage display technology and a heterologous expression system, OFL-specific clones 1O11, 1O13, 1O17, 1O19, 1O21, and 2O26 were successfully isolated and expressed in soluble form. Among all OFL-specific ssdAbs, the 1O17 ssdAb exhibited the highest binding affinity to OFL in a concentration-dependence manner. The limit of detection (IC10) of 1O17 ssdAb was calculated as 0.34 ng/mL with a detection range of 3.40-1315.00 ng/mL, and its cross reactivity with other analogs was calculated to be less than 5.98 %, indicating high specificity and sensitivity. Molecular docking results revealed that 100Trp and 101Arg located in the CDR3 region of 1O17 ssdAb were crucial for OFL binding. In fish matrix performance tests, the 1O17 ssdAb did not demonstrate severe matrix interference in OFL-negative fish matrix, achieving satisfactory recovery rates ranging from 83.04 % to 108.82 % with high reproducibility. SIGNIFICANCE: This research provides a new and efficient OFL detection recognition element with significant potential in immunoassay applications, broadening the application scenarios of ssdAbs. It offers valuable insights into the structure-activity relationship between ssdAbs and small molecules, laying a theoretical foundation for the further directional modification and maturation of ssdAbs in subsequent applications.


Assuntos
Ofloxacino , Tubarões , Anticorpos de Domínio Único , Animais , Ofloxacino/análise , Ofloxacino/imunologia , Ofloxacino/química , Tubarões/imunologia , Anticorpos de Domínio Único/química , Anticorpos de Domínio Único/imunologia , Limite de Detecção , Imunoensaio/métodos
8.
Zhongguo Fei Ai Za Zhi ; 27(6): 471-479, 2024 Jun 20.
Artigo em Chinês | MEDLINE | ID: mdl-39026499

RESUMO

Post translational modifications (PTMs) can change the properties of a protein by covalent addition of functional groups to one or more amino acids, and influence almost all aspects of normal cell biology and pathogenesis. Lactylation is a novel identified PTM, and has been found in both histone and non-histone proteins. Since associated with the end product of glycolysis-- lactate, lactylation modification could provide a new perspective for understanding the relationship between metabolic reprogramming and epigenetic modifications. Accumulated evidences suggest that lactylation play important roles in tumor progression and links to poor prognosis in clinical studies. Histone lactylation can affect gene expression in tumor cells and immunological cells, further promoting tumor progression and immune suppression. Lactylation on non-histone proteins can also regulate tumor progression and drug resistance. In this review, we aimed to summarize the roles of lactylation in cancer progression, microenvironment interactions and immune suppression, try to identify new molecular targets for cancer therapy and provide a new direction for combined targeted therapy and immunotherapy.
.


Assuntos
Neoplasias , Processamento de Proteína Pós-Traducional , Humanos , Neoplasias/metabolismo , Neoplasias/genética , Animais , Histonas/metabolismo , Microambiente Tumoral
9.
Int J Biol Macromol ; 276(Pt 2): 133914, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39029842

RESUMO

Intelligent food packaging has recently gained significant attention due to the heightened consumer awareness regarding food quality. Although anthocyanins avoid safety issues, the instability and leakage of anthocyanins restrict their utilization in freshness indicator labels. In this study, we introduced an innovative metal-organic framework (UiO-66-NH2) synergistic pH-colorimetric label with fast ammonia-responsive, incorporating sodium alginate, red cabbage anthocyanin, and UiO-66-NH2. The cross-linked sodium alginate substrate enabled the label to possess superior insolubility. The microscopic morphology of the labels was intricately analyzed, while their sensitivity was rigorously tested utilizing ammonia as a representative gas. Due to the remarkable UV absorption capability of UiO-66-NH2 and various molecular interactions with anthocyanins, the label exhibited good UV absorption, enhanced stability, and optimized performance in reducing anthocyanin leakage, ensuring the stability and effectiveness of the labels in practical applications. The prepared label exhibited good specificity for volatile amines and ammonia gases, and robust anti-interference properties, enabling visualization and early detection of shrimp spoilage during storage at different temperatures. The strategy employed in this study presents promising new possibilities for developing intelligent packaging solutions for food products.


Assuntos
Alginatos , Antocianinas , Embalagem de Alimentos , Estruturas Metalorgânicas , Alginatos/química , Estruturas Metalorgânicas/química , Antocianinas/química , Embalagem de Alimentos/métodos , Concentração de Íons de Hidrogênio , Amônia/química , Amônia/análise , Qualidade dos Alimentos , Colorimetria/métodos
10.
Food Res Int ; 189: 114564, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38876596

RESUMO

Total volatile basic nitrogen (TVB-N) serves as a crucial indicator for evaluating the freshness of salmon. This study aimed to achieve accurate and non-destructive prediction of TVB-N content in salmon fillets stored in multiple temperature settings (-20, 0, -4, 20 °C, and dynamic temperature) using near-infrared (NIR) and Raman spectroscopy. A partial least square support vector machine (LSSVM) regression model was established through the integration of NIR and Raman spectral data using low-level data fusion (LLDF) and mid-level data fusion (MLDF) strategies. Notably, compared to a single spectrum analysis, the LLDF approach provided the most accurate prediction model, achieving an R2P of 0.910 and an RMSEP of 1.922 mg/100 g. Furthermore, MLDF models based on 2D-COS and VIP achieved R2P values of 0.885 and 0.906, respectively. These findings demonstrated the effectiveness of the proposed method for precise quantitative detection of salmon TVB-N, laying a technical foundation for the exploration of similar approaches in the study of other meat products. This approach has the potential to assess and monitor the freshness of seafood, ensuring consumer safety and enhancing product quality.


Assuntos
Nitrogênio , Salmão , Alimentos Marinhos , Espectroscopia de Luz Próxima ao Infravermelho , Análise Espectral Raman , Máquina de Vetores de Suporte , Animais , Análise Espectral Raman/métodos , Espectroscopia de Luz Próxima ao Infravermelho/métodos , Alimentos Marinhos/análise , Nitrogênio/análise , Temperatura , Análise dos Mínimos Quadrados
11.
J Immunol ; 213(3): 347-361, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38847616

RESUMO

The cyclic GMP-AMP synthase (cGAS)-stimulator of IFN genes (STING) pathway is instrumental to antitumor immunity, yet the underlying molecular and cellular mechanisms are complex and still unfolding. A new paradigm suggests that cancer cells' cGAS-synthesized cGAMP can be transferred to tumor-infiltrating immune cells, eliciting STING-dependent IFN-ß response for antitumor immunity. Nevertheless, how the tumor microenvironment may shape this process remains unclear. In this study, we found that extracellular ATP, an immune regulatory molecule widely present in the tumor microenvironment, can potentiate cGAMP transfer, thereby boosting the STING signaling and IFN-ß response in murine macrophages and fibroblasts. Notably, genetic ablation or chemical inhibition of murine volume-regulation anion channel LRRC8/volume-regulated anion channel (VRAC), a recently identified cGAMP transporter, abolished ATP-potentiated cGAMP transfer and STING-dependent IFN-ß response, revealing a crucial role of LRRC8/VRAC in the cross-talk of extracellular ATP and cGAMP. Mechanistically, ATP activation of the P2X family receptors triggered Ca2+ influx and K+ efflux, promoting reactive oxygen species production. Moreover, ATP-evoked K+ efflux alleviated the phosphorylation of VRAC's obligate subunit LRRC8A/SWELL1 on S174. Mutagenesis studies indicated that the phosphorylation of S174 on LRRC8A could act as a checkpoint for VRAC in the steady state and a rheostat of ATP responsiveness. In an MC38-transplanted tumor model, systemically blocking CD39 and ENPP1, hydroxylases of extracellular ATP and cGAMP, respectively, elevated antitumor NK, NKT, and CD8+ T cell responses and restrained tumor growth in mice. Altogether, this study establishes a crucial role of ATP in facilitating LRRC8/VRAC transport cGAMP in the tumor microenvironment and provides new insight into harnessing cGAMP transfer for antitumor immunity.


Assuntos
Trifosfato de Adenosina , Proteínas de Membrana , Nucleotídeos Cíclicos , Microambiente Tumoral , Animais , Nucleotídeos Cíclicos/metabolismo , Camundongos , Trifosfato de Adenosina/metabolismo , Proteínas de Membrana/metabolismo , Proteínas de Membrana/imunologia , Microambiente Tumoral/imunologia , Interferon beta/metabolismo , Interferon beta/imunologia , Camundongos Endogâmicos C57BL , Humanos , Transdução de Sinais/imunologia , Camundongos Knockout , Linhagem Celular Tumoral , Cátions/metabolismo , Neoplasias/imunologia , Neoplasias/metabolismo , Nucleotidiltransferases/metabolismo , Macrófagos/imunologia , Macrófagos/metabolismo
12.
Anal Chim Acta ; 1307: 342631, 2024 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-38719408

RESUMO

BACKGROUND: Simultaneous detection of food contaminants is crucial in addressing the collective health hazards arising from the presence of multiple contaminants. However, traditional multi-competitive surface-enhanced Raman scattering (SERS) aptasensors face difficulties in achieving simultaneous accurate detection of multiple target substances due to the uncontrollable SERS "hot spots". In this study, using chloramphenicol (CAP) and estradiol (E2) as two target substances, we introduced a novel approach that combines machine learning methods with a dual SERS aptasensor, enabling simultaneous high-sensitivity and accurate detection of both target substances. RESULTS: The strategy effectively minimizes the interference from characteristic Raman peaks commonly encountered in traditional multi-competitive SERS aptasensors. For this sensing system, the Au@4-MBA@Ag nanoparticles modified with sulfhydryl (SH)-CAP aptamer and Au@DTNB@Ag NPs modified with sulfhydryl (SH)-E2 aptamer were used as signal probes. Additionally, Fe3O4@Au nanoflowers integrated with SH-CAP aptamer complementary DNA and SH-E2 aptamer complementary DNA were used as capture probes, respectively. When compared to linear regression random forest, and support vector regression (SVR) models, the proposed artificial neural network (ANN) model exhibited superior precision, demonstrating R2 values of 0.963, 0.976, 0.991, and 0.970 for the training set, test set, validation set, and entire dataset, respectively. Validation with ten spectral groups reported an average error of 244 µg L-1. SIGNIFICANCE: The essence of our study lies in its capacity to address a persistent challenge encountered by traditional multiple competitive SERS aptasensors - the interference generated by uncontrollable SERS "hot spots" that hinders simultaneous quantification. The accuracy of the predictive model for simultaneous detection of two target substances was significantly improved using machine learning tools. This innovative technique offers promising avenues for the accurate and high-sensitive simultaneous detection of multiple food and environmental contaminants.


Assuntos
Aptâmeros de Nucleotídeos , Ouro , Aprendizado de Máquina , Nanopartículas Metálicas , Prata , Análise Espectral Raman , Aptâmeros de Nucleotídeos/química , Prata/química , Ouro/química , Nanopartículas Metálicas/química , Cloranfenicol/análise , Estradiol/análise , Técnicas Biossensoriais/métodos , Contaminação de Alimentos/análise , Limite de Detecção
13.
Lipids Health Dis ; 23(1): 97, 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38566047

RESUMO

BACKGROUND: Observational studies have suggested an association between birth weight and type 2 diabetes mellitus, but the causality between them has not been established. We aimed to obtain the causal relationship between birth weight with T2DM and quantify the mediating effects of potential modifiable risk factors. METHODS: Two-step, two-sample Mendelian randomization (MR) techniques were applied using SNPs as genetic instruments for exposure and mediators. Summary data from genome-wide association studies (GWAS) for birth weight, T2DM, and a series of fatty acids traits and their ratios were leveraged. The inverse variance weighted (IVW) method was the main analysis approach. In addition, the heterogeneity test, horizontal pleiotropy test, Mendelian randomization pleiotropy residual sum and outlier (MR-PRESSO) test, and leave-one-out analysis were carried out to assess the robustness. RESULTS: The IVW method showed that lower birth weight raised the risk of T2DM (ß: -1.113, 95% CI: -1.573 ∼ -0.652). Two-step MR identified 4 of 17 candidate mediators partially mediating the effect of lower birth weight on T2DM, including ratio of polyunsaturated fatty acids to monounsaturated fatty acids (proportion mediated: 7.9%), ratio of polyunsaturated fatty acids to total fatty acids (7.2%), ratio of omega-6 fatty acids to total fatty acids (8.1%) and ratio of linoleic acid to total fatty acids ratio (6.0%). CONCLUSIONS: Our findings supported a potentially causal effect of birth weight against T2DM with considerable mediation by modifiable risk factors. Interventions that target these factors have the potential to reduce the burden of T2DM attributable to low birth weight.


Assuntos
Diabetes Mellitus Tipo 2 , Ácidos Graxos , Humanos , Diabetes Mellitus Tipo 2/genética , Peso ao Nascer/genética , Estudo de Associação Genômica Ampla , Análise da Randomização Mendeliana , Ácidos Graxos Monoinsaturados
14.
World J Hepatol ; 16(3): 439-451, 2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38577529

RESUMO

BACKGROUND: Sterol O-acyltransferase 1 (SOAT1) is an important target in the diagnosis and treatment of liver cancer. However, the prognostic value of SOAT1 in patients with hepatocellular carcinoma (HCC) is still not clear. AIM: To investigate the correlation of SOAT1 expression with HCC, using RNA-seq and gene expression data of The Cancer Genome Atlas (TCGA)-liver hepatocellular carcinoma (LIHC) and pan-cancer. METHODS: The correlation between SOAT1 expression and HCC was analyzed. Cox hazard regression models were conducted to investigate the prognostic value of SOAT1 in HCC. Overall survival and disease-specific survival were explored based on TCGA-LIHC data. Biological processes and functional pathways mediated by SOAT1 were characterized by gene ontology (GO) analysis and the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of differentially expressed genes. In addition, the protein-protein interaction network and co-expression analyses of SOAT1 in HCC were performed to better understand the regulatory mechanisms of SOAT1 in this malignancy. RESULTS: SOAT1 and SOAT2 were highly expressed in unpaired samples, while only SOAT1 was highly expressed in paired samples. The area under the receiver operating characteristic curve of SOAT1 expression in tumor samples from LIHC patients compared with para-carcinoma tissues was 0.748, while the area under the curve of SOAT1 expression in tumor samples from LIHC patients compared with GTEx was 0.676. Patients with higher SOAT1 expression had lower survival rates. Results from GO/KEGG and gene set enrichment analyses suggested that the PI3K/AKT signaling pathway, the IL-18 signaling pathway, the calcium signaling pathway, secreted factors, the Wnt signaling pathway, the Jak/STAT signaling pathway, the MAPK family signaling pathway, and cell-cell communication were involved in such association. SOAT1 expression was positively associated with the abundance of macrophages, Th2 cells, T helper cells, CD56bright natural killer cells, and Th1 cells, and negatively linked to the abundance of Th17 cells, dendritic cells, and cytotoxic cells. CONCLUSION: Our findings demonstrate that SOAT1 may serve as a novel target for HCC treatment, which is helpful for the development of new strategies for immunotherapy and metabolic therapy.

15.
Sci Total Environ ; 929: 172332, 2024 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-38615776

RESUMO

Nanobiotechnology and the engineering of nanomaterials are currently the main focus of many researches. Seafood waste carbon nanomaterials (SWCNs) are a renewable resource with large surface area, porous structure, high reactivity, and abundant active sites. They efficiently adsorb food contaminants through π-π conjugated, ion exchange, and electrostatic interaction. Furthermore, SWCNs prepared from seafood waste are rich in N and O functional groups. They have high quantum yield (QY) and excellent fluorescence properties, making them promising materials for the removal and detection of pollutants. It provides an opportunity by which solutions to the long-term challenges of the food industry in assessing food safety, maintaining food quality, detecting contaminants and pretreating samples can be found. In addition, carbon nanomaterials can be used as adsorbents to reduce environmental pollutants and prevent food safety problems from the source. In this paper, the types of SWCNs are reviewed; the synthesis, properties and applications of SWCNs are reviewed and the raw material selection, preparation methods, reaction conditions and formation mechanisms of biomass-based carbon materials are studied in depth. Finally, the advantages of seafood waste carbon and its composite materials in pollutant removal and detection were discussed, and existing problems were pointed out, which provided ideas for the future development and research directions of this interesting and versatile material. Based on the concept of waste pricing and a recycling economy, the aim of this paper is to outline current trends and the future potential to transform residues from the seafood waste sector into valuable biological (nano) materials, and to apply them to food safety.


Assuntos
Carbono , Inocuidade dos Alimentos , Nanoestruturas , Alimentos Marinhos , Alimentos Marinhos/análise , Inocuidade dos Alimentos/métodos , Nanoestruturas/análise , Carbono/análise , Contaminação de Alimentos/análise
16.
BMC Med ; 22(1): 101, 2024 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-38448943

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) and metabolic-associated fatty liver disease (MAFLD) shares common pathophysiological mechanisms with type 2 diabetes, making them significant risk factors for type 2 diabetes. The present study aimed to assess the epidemiological feature of type 2 diabetes in patients with NAFLD or MAFLD at global levels. METHODS: Published studies were searched for terms that included type 2 diabetes, and NAFLD or MAFLD using PubMed, EMBASE, MEDLINE, and Web of Science databases from their inception to December 2022. The pooled global and regional prevalence and incidence density of type 2 diabetes in patients with NAFLD or MAFLD were evaluated using random-effects meta-analysis. Potential sources of heterogeneity were investigated using stratified meta-analysis and meta-regression. RESULTS: A total of 395 studies (6,878,568 participants with NAFLD; 1,172,637 participants with MAFLD) from 40 countries or areas were included in the meta-analysis. The pooled prevalence of type 2 diabetes among NAFLD or MAFLD patients was 28.3% (95% confidence interval 25.2-31.6%) and 26.2% (23.9-28.6%) globally. The incidence density of type 2 diabetes in NAFLD or MAFLD patients was 24.6 per 1000-person year (20.7 to 29.2) and 26.9 per 1000-person year (7.3 to 44.4), respectively. CONCLUSIONS: The present study describes the global prevalence and incidence of type 2 diabetes in patients with NAFLD or MAFLD. The study findings serve as a valuable resource to assess the global clinical and economic impact of type 2 diabetes in patients with NAFLD or MAFLD.


Assuntos
Diabetes Mellitus Tipo 2 , Hepatopatia Gordurosa não Alcoólica , Humanos , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Fatores de Risco , Bases de Dados Factuais , Pacientes
17.
Food Chem ; 447: 138902, 2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-38458132

RESUMO

The timely detection of freshness changes of aquatic products is crucial. In this study, we have developed a reliable, cost-effective, and user-friendly method for rapidly detecting hypoxanthine using a xanthine oxidase (XOD)/nanozyme enzymatic cascade system. The nanozyme, derived from the Fe7/Ni3 metal-organic framework (Fe7Ni3MOF), exhibited good peroxidase-mimetic activity and stability. Our proposed XOD/Fe7Ni3MOF enzymatic cascade system demonstrated a linear response to hypoxanthine in the range of 3-70 µM, with a low detection limit of 1.39 µM. We also analyzed hypoxanthine in actual aquatic products, achieving spiked recoveries ranging from 90.04 % to 107.37 %. The correlation coefficient between our developed colorimetric method and the HPLC method was 0.98. Importantly, our proposed method holds several advantages over alternative techniques, particularly in terms of cost-effectiveness, precision, and speed. Consequently, this methodology shows great promise for the early detection of freshness changes in aquatic samples.


Assuntos
Técnicas Biossensoriais , Estruturas Metalorgânicas , Hipoxantina , Técnicas Biossensoriais/métodos , Colorimetria/métodos , Peróxido de Hidrogênio
18.
Diabetes Metab J ; 48(5): 971-982, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38503277

RESUMO

BACKGRUOUND: The incidence density of metabolic dysfunction-associated fatty liver disease (MAFLD) and the effect of a healthy lifestyle on the risk of MAFLD remain unknown. We evaluated the prevalence and incidence density of MAFLD and investigated the association between healthy lifestyle and the risk of MAFLD. METHODS: A cross-sectional analysis was conducted on 37,422 participants to explore the prevalence of MAFLD. A cohort analysis of 18,964 individuals was conducted to identify the incidence of MAFLD, as well as the association between healthy lifestyle and MAFLD. Cox proportional hazards regression was used to calculate the hazard ratio (HR) and 95% confidence interval (CI) with adjustments for confounding factors. RESULTS: The prevalence of MAFLD, non-alcoholic fatty liver disease, and their comorbidities were 30.38%, 28.09%, and 26.13%, respectively. After approximately 70 thousand person-years of follow-up, the incidence densities of the three conditions were 61.03, 55.49, and 51.64 per 1,000 person-years, respectively. Adherence to an overall healthy lifestyle was associated with a 19% decreased risk of MAFLD (HR, 0.81; 95% CI, 0.72 to 0.92), and the effects were modified by baseline age, sex, and body mass index (BMI). Subgroup analyses revealed that younger participants, men, and those with a lower BMI experienced more significant beneficial effects from healthy lifestyle. CONCLUSION: Our results highlight the beneficial effect of adherence to a healthy lifestyle on the prevention of MAFLD. Health management for improving dietary intake, physical activity, and smoking and drinking habits are critical to improving MAFLD.


Assuntos
Estilo de Vida Saudável , Hepatopatia Gordurosa não Alcoólica , Humanos , Masculino , Feminino , Estudos Prospectivos , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Estudos Transversais , Incidência , Adulto , Fatores de Risco , Prevalência , Idoso , China/epidemiologia , Modelos de Riscos Proporcionais
19.
Comb Chem High Throughput Screen ; 27(13): 1969-1983, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38357943

RESUMO

BACKGROUND: Lung adenocarcinoma (LUAD) is one of the most common malignant cancers. Neutrophil extracellular traps (NETs) have been discovered to play a crucial role in the pathogenesis of LUAD. We aimed to establish an innovative prognostic model for LUAD based on the distinct expression patterns of NETs-related genes. METHODS: The TCGA LUAD dataset was utilized as the training set, while GSE31210, GSE37745, and GSE50081 were undertaken as the verification sets. The patients were grouped into clusters based on the expression signature of NETs-related genes. Differentially expressed genes between clusters were identified through the utilization of the random forest and LASSO algorithms. The NETs score model for LUAD prognosis was developed by multiplying the expression levels of specific genes with their corresponding LASSO coefficients and then summing them. The validity of the model was confirmed by analysis of the survival curves and ROC curves. Additionally, immune infiltration, GSEA, mutation analysis, and drug analysis were conducted. Silencing ABCC2 in A549 cells was achieved to investigate its effect. RESULTS: We identified six novel NETs-related genes, namely UPK1B, SFTA3, GGTLC1, SCGB3A1, ABCC2, and NTS, and developed a NETs score signature, which exhibited a significant correlation with the clinicopathological and immune traits of the LUAD patients. High-risk patients showed inhibition of immune-related processes. Mutation patterns exhibited variability among the different groups. AZD3759, lapatinib, and dasatinib have been identified as potential candidates for LUAD treatment. Moreover, the downregulation of ABCC2 resulted in the induction of apoptosis and suppression of migration and invasion in A549 cells. CONCLUSION: Altogether, this study has identified a novel NET-score signature based on six novel NET-related genes to predict the prognosis of LUAD and ABCC2 and has also explored a new method for personalized chemo-/immuno-therapy of LUAD.


Assuntos
Adenocarcinoma de Pulmão , Armadilhas Extracelulares , Neoplasias Pulmonares , Proteína 2 Associada à Farmacorresistência Múltipla , Humanos , Adenocarcinoma de Pulmão/genética , Adenocarcinoma de Pulmão/tratamento farmacológico , Adenocarcinoma de Pulmão/imunologia , Adenocarcinoma de Pulmão/diagnóstico , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/tratamento farmacológico , Prognóstico , Neutrófilos/efeitos dos fármacos , Neutrófilos/metabolismo , Neutrófilos/imunologia , Células A549 , Regulação Neoplásica da Expressão Gênica
20.
Nat Commun ; 15(1): 624, 2024 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-38245507

RESUMO

In situ monitoring of endogenous amino acid loss through sweat can provide physiological insights into health and metabolism. However, existing amino acid biosensors are unable to quantitatively assess metabolic status during exercise and are rarely used to establish blood-sweat correlations because they only detect a single concentration indicator and disregard sweat rate. Here, we present a wearable multimodal biochip integrated with advanced electrochemical electrodes and multipurpose microfluidic channels that enables simultaneous quantification of multiple sweat indicators, including phenylalanine and chloride, as well as sweat rate. This combined measurement approach reveals a negative correlation between sweat phenylalanine levels and sweat rates among individuals, which further enables identification of individuals at high metabolic risk. By tracking phenylalanine fluctuations induced by protein intake during exercise and normalizing the concentration indicator by sweat rates to reduce interindividual variability, we demonstrate a reliable method to correlate and analyze sweat-blood phenylalanine levels for personal health monitoring.


Assuntos
Técnicas Biossensoriais , Suor , Humanos , Suor/química , Fenilalanina/metabolismo , Sudorese , Técnicas Biossensoriais/métodos , Aminoácidos/metabolismo
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