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1.
Cell Rep ; 43(10): 114859, 2024 Oct 22.
Artigo em Inglês | MEDLINE | ID: mdl-39412984

RESUMO

Calcitonin gene-related peptide (CGRP), a neuropeptide involved in nociceptor neuronal function, plays a critical role in mediating neuroinflammation and pain. In this study, we find that bladder group 2 innate lymphoid cells (ILC2s) function as primary producers of CGRP in the early phase of bacterial cystitis, contributing to increased inflammation, altered voiding behavior, and heightened pelvic allodynia. Furthermore, we demonstrate that interleukin (IL)-33, a cytokine secreted by urothelial cells, upregulates CGRP production by ILC2s in the bladder during uropathogenic Escherichia coli (UPEC) infection. Moreover, our research reveals that monocytes expressing high levels of receptor activity-modifying protein 1 (RAMP1), a CGRP receptor, mediate the pro-inflammatory effects of CGRP-producing ILC2s. In summary, our results underscore the significance of the immune cell-derived neuropeptides in the pathology of UPEC infection, suggesting a promising therapeutic approach targeting the IL-33-ILC2-CGRP axis for managing lower urinary tract symptoms in bacterial cystitis.


Assuntos
Peptídeo Relacionado com Gene de Calcitonina , Cistite , Inflamação , Linfócitos , Escherichia coli Uropatogênica , Animais , Feminino , Camundongos , Peptídeo Relacionado com Gene de Calcitonina/metabolismo , Cistite/microbiologia , Cistite/metabolismo , Cistite/patologia , Cistite/imunologia , Infecções por Escherichia coli/imunologia , Infecções por Escherichia coli/patologia , Imunidade Inata , Inflamação/patologia , Inflamação/metabolismo , Interleucina-33/metabolismo , Linfócitos/metabolismo , Linfócitos/imunologia , Camundongos Endogâmicos C57BL , Monócitos/metabolismo , Monócitos/imunologia , Nociceptividade , Proteína 1 Modificadora da Atividade de Receptores/metabolismo , Proteína 1 Modificadora da Atividade de Receptores/genética , Receptores de Peptídeo Relacionado com o Gene de Calcitonina/metabolismo , Bexiga Urinária/patologia , Bexiga Urinária/microbiologia , Bexiga Urinária/metabolismo
2.
J Cell Mol Med ; 28(17): e70069, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39245801

RESUMO

Phosphoinositide 3-kinase γ (PI3Kγ) is G-protein-coupled receptor-activated lipid kinase with both kinase-dependent and kinase-independent activity. Plenty of evidence have demonstrated that PI3Kγ participated in TAC and I/R-induced myocardial remodelling and heart failure (HF). In this study, we tested the hypothesis that common variants in the PI3Kγ gene (PIK3CG) were associated with the prognosis of HF in the Chinese Han population. Through re-sequencing and genotyping, we finally identified a common variant in the 3'UTR of PIK3CG strongly associated with the prognosis of HF in two-stage population: adjusted p = 0.007, hazard ratio = 0.56 (0.36-0.85) in the first cohort and adjusted p = 0.024, hazard ratio = 0.39 (0.17-0.88) in the replicated cohort. A series of functional assays revealed that rs10215499-A allele suppressed PIK3CG translation by facilitating has-miR-133a-3p binding, but not the G allele. Subjects carrying the GG genotype showed higher mRNA and protein level than those with AA and AG genotype. Furthermore, overexpression of PIK3CG could protect AC16 from hypoxia/reoxygenation (H/R)-induced apoptosis, while the case was opposite for PIK3CG silencing. In conclusion, common variant rs10215499 in the 3'-UTR of PIK3CG might affect the prognosis of HF by interfering with miR-133a-3p binding and PIK3CG is a promising target for HF treatment in the future.


Assuntos
Classe Ib de Fosfatidilinositol 3-Quinase , Insuficiência Cardíaca , Polimorfismo de Nucleotídeo Único , Humanos , Insuficiência Cardíaca/genética , Prognóstico , Classe Ib de Fosfatidilinositol 3-Quinase/genética , Masculino , Feminino , Pessoa de Meia-Idade , MicroRNAs/genética , Idoso , Regiões 3' não Traduzidas/genética , Predisposição Genética para Doença , Alelos , Genótipo , Apoptose/genética
3.
Cell Mol Gastroenterol Hepatol ; : 101411, 2024 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-39349248

RESUMO

BACKGROUND & AIMS: The immunological mechanisms underpinning the pathogenesis of alcoholic-associated liver disease (ALD) remain incompletely elucidated. This study aims to explore the transcriptomic profiles of hepatic immune cells in ALD compared with healthy individuals and those with metabolic dysfunction-associated steatotic liver disease (MASLD). METHODS: We utilized single-cell RNA sequencing to analyze liver samples from healthy subjects and patients with MASLD and ALD, focusing on the immune cell landscapes within the liver. Key alterations in immune cell subsets were further validated using liver biopsy samples from additional patient cohorts. RESULTS: We observed a significant accumulation of CD4+ T cells in livers of patients with ALD, surpassing the prevalence of CD8+ T cells, in contrast to patients with MASLD and healthy counterparts, whereas natural killer (NK) cells and γδT cells exhibited reduced intrahepatic infiltration. In-depth transcriptional and developmental trajectory analyses unveiled that a distinct CD4+ subset characterized by granzyme K (GZMK) expression, displaying a tissue-resident signature and terminal effector state, prominently enriched among CD4+ T cells infiltrating the livers of patients with ALD. Subsequent examination of an independent ALD patient cohort corroborated the substantial enrichment of GZMK+CD4+ T lymphocytes, primarily within liver fibrotic zones, suggesting their potential involvement in disease progression. Additionally, we noted shifts in myeloid populations, with expanded APOE+ macrophage and FCGR3B+ monocyte subsets in ALD samples relative to MASLD and healthy tissues. CONCLUSIONS: In summary, this study unravels the intricate cellular diversity within hepatic immune cell populations, highlighting the pivotal immune pathogenic role of the GZMK+CD4+ T lymphocyte subset in ALD pathogenesis.

4.
Adv Sci (Weinh) ; : e2405240, 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39234807

RESUMO

Spatial heterogeneity and plasticity of the mammalian liver are critical for systemic metabolic homeostasis in response to fluctuating nutritional conditions. Here, a spatially resolved transcriptomic landscape of mouse livers across fed, fasted and refed states using spatial transcriptomics is generated. This approach elucidated dynamic temporal-spatial gene cascades and how liver zonation-both expression levels and patterns-adapts to shifts in nutritional status. Importantly, the pericentral nuclear receptor Nr1i3 (CAR) as a pivotal regulator of triglyceride metabolism is pinpointed. It is showed that the activation of CAR in the pericentral region is transcriptionally governed by Pparα. During fasting, CAR activation enhances lipolysis by upregulating carboxylesterase 2a, playing a crucial role in maintaining triglyceride homeostasis. These findings lay the foundation for future mechanistic studies of liver metabolic heterogeneity and plasticity in response to nutritional status changes, offering insights into the zonated pathology that emerge during liver disease progression linked to nutritional imbalances.

5.
Adv Sci (Weinh) ; 11(38): e2404274, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39119946

RESUMO

The correlation between liver disease and the progression of ulcerative colitis (UC) has remained elusive. In this study, it demonstrates that liver injury is intricately linked to the heightened severity of UC in patients, and causes more profound intestinal damage during DSS-induced colitis in mice. Metabolomics analysis of plasma from liver cirrhosis patients shows liver injury compromising nicotinamide supply for NAD+ biosynthesis in the intestine. Subsequent investigation identifies intestinal group 2 innate lymphoid cells (ILC2s) are responsible for liver injury-exacerbated colitis. Reconstitution of ILC2s or the restoration of NAD+ metabolism proves effective in relieving liver injury-aggravated experimental colitis. Mechanistically, the NAD+ salvage pathway regulates gut ILC2s in a cell-intrinsic manner by supporting the generation of succinate, which fuels the electron transport chain to sustaining ILC2s function. This research deepens the understanding of cellular and molecular mechanisms in liver disease-UC interplay, identifying a metabolic target for innovative treatments in liver injury-complicated colitis.


Assuntos
Colite Ulcerativa , Modelos Animais de Doenças , Imunidade Inata , Cirrose Hepática , Linfócitos , Camundongos Endogâmicos C57BL , Niacinamida , Animais , Colite Ulcerativa/imunologia , Colite Ulcerativa/metabolismo , Camundongos , Niacinamida/farmacologia , Imunidade Inata/imunologia , Humanos , Linfócitos/metabolismo , Linfócitos/imunologia , Cirrose Hepática/metabolismo , Cirrose Hepática/imunologia , Masculino , Fígado/metabolismo , Fígado/imunologia , Suscetibilidade a Doenças , Feminino
6.
Gels ; 10(8)2024 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-39195041

RESUMO

Gel materials, especially hydrogels and aerogels, have been materials of interest in adsorption technology research in recent years [...].

7.
Nat Immunol ; 25(9): 1565-1579, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39103576

RESUMO

Nucleophosmin 1 (NPM1) is commonly mutated in myelodysplastic syndrome (MDS) and acute myeloid leukemia. Concurrent inflammatory bowel diseases (IBD) and MDS are common, indicating a close relationship between IBD and MDS. Here we examined the function of NPM1 in IBD and colitis-associated colorectal cancer (CAC). NPM1 expression was reduced in patients with IBD. Npm1+/- mice were more susceptible to acute colitis and experimentally induced CAC than littermate controls. Npm1 deficiency impaired the function of interleukin-22 (IL-22)-producing group three innate lymphoid cells (ILC3s). Mice lacking Npm1 in ILC3s exhibited decreased IL-22 production and accelerated development of colitis. NPM1 was important for mitochondrial biogenesis and metabolism by oxidative phosphorylation in ILC3s. Further experiments revealed that NPM1 cooperates with p65 to promote mitochondrial transcription factor A (TFAM) transcription in ILC3s. Overexpression of Npm1 in mice enhanced ILC3 function and reduced the severity of dextran sulfate sodium-induced colitis. Thus, our findings indicate that NPM1 in ILC3s protects against IBD by regulating mitochondrial metabolism through a p65-TFAM axis.


Assuntos
Colite , Imunidade nas Mucosas , Camundongos Knockout , Mitocôndrias , Proteínas Nucleares , Nucleofosmina , Fosforilação Oxidativa , Animais , Mitocôndrias/metabolismo , Camundongos , Proteínas Nucleares/metabolismo , Proteínas Nucleares/genética , Humanos , Colite/imunologia , Colite/metabolismo , Linfócitos/imunologia , Linfócitos/metabolismo , Camundongos Endogâmicos C57BL , Neoplasias Colorretais/imunologia , Neoplasias Colorretais/metabolismo , Interleucina 22 , Imunidade Inata , Doenças Inflamatórias Intestinais/imunologia , Doenças Inflamatórias Intestinais/metabolismo , Sulfato de Dextrana , Masculino , Interleucinas/metabolismo , Interleucinas/genética , Interleucinas/imunologia , Feminino
8.
Front Immunol ; 15: 1353915, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39176085

RESUMO

Background: Type 2 Diabetes Mellitus (T2D) and Osteoarthritis (OA) are both prevalent diseases that significantly impact the health of patients. Increasing evidence suggests that there is a big correlation between T2D and OA, but the molecular mechanisms remain elusive. The aims of this study are to investigate the shared biomarkers and potential molecular mechanisms in T2D combined with OA. Methods: T2D and OA-related differentially expressed genes (DEGs) were identified via bioinformatic analysis on Gene Expression Omnibus (GEO) datasets GSE26168 and GSE114007 respectively. Subsequently, extensive target prediction and network analysis were finished with Gene Ontology (GO), protein-protein interaction (PPI), and pathway enrichment with DEGs. The transcription factors (TFs) and miRNAs coupled in co-expressed DEGs involved in T2D and OA were predicted as well. The key genes expressed both in the clinical tissues of T2D and OA were detected with western blot and qRT-PCR assay. Finally, the most promising candidate compounds were predicted with the Drug-Gene Interaction Database (DGIdb) and molecular docking. Results: In this study, 209 shared DEGs between T2D and OA were identified. Functional analysis disclosed that these DEGs are predominantly related to ossification, regulation of leukocyte migration, extracellular matrix (ECM) structural constituents, PI3K/AKT, and Wnt signaling pathways. Further analysis via Protein-Protein Interaction (PPI) analysis and validation with external datasets emphasized MMP9 and ANGPTL4 as crucial genes in both T2D and OA. Our findings were validated through qRT-PCR and Western blot analyses, which indicated high expression levels of these pivotal genes in T2D, OA, and T2D combined with OA cases. Additionally, the analysis of Transcription Factors (TFs)-miRNA interactions identified 7 TFs and one miRNA that jointly regulate these important genes. The Receiver Operating characteristic (ROC) analysis demonstrated the significant diagnostic potential of MMP9 and ANGPTL4.Moreover, we identified raloxifene, ezetimibe, and S-3304 as promising agents for patients with both T2D and OA. Conclusion: This study uncovers the shared signaling pathways, biomarkers, potential therapeutics, and diagnostic models for individuals suffering from both T2D and OA. These findings not only present novel perspectives on the complex interplay between T2D and OA but also hold significant promise for improving the clinical management and prognosis of patients with this concurrent condition.


Assuntos
Biologia Computacional , Diabetes Mellitus Tipo 2 , Redes Reguladoras de Genes , Osteoartrite , Mapas de Interação de Proteínas , Humanos , Diabetes Mellitus Tipo 2/genética , Osteoartrite/genética , Osteoartrite/metabolismo , Biologia Computacional/métodos , Perfilação da Expressão Gênica , MicroRNAs/genética , Regulação da Expressão Gênica , Bases de Dados Genéticas , Proteína 4 Semelhante a Angiopoietina/genética , Proteína 4 Semelhante a Angiopoietina/metabolismo , Simulação de Acoplamento Molecular , Biomarcadores , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo
9.
Research (Wash D C) ; 7: 0407, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38979515

RESUMO

Colon cancer is increasing worldwide and is commonly regarded as hormone independent, yet recent reports have implicated sex hormones in its development. Nevertheless, the role of hormones from the hypothalamus-hypophysis axis in colitis-associated colorectal cancer (CAC) remains uncertain. In this study, we observed a significant reduction in the expression of the oxytocin receptor (OXTR) in colon samples from both patient with colitis and patient with CAC. To investigate further, we generated mice with an intestinal-epithelium-cell-specific knockout of OXTR. These mice exhibited markedly increased susceptibility to dextran-sulfate-sodium-induced colitis and dextran sulfate sodium/azoxymethane-induced CAC compared to wild-type mice. Our findings indicate that OXTR depletion impaired the inner mucus of the colon epithelium. Mechanistically, oxytocin was found to regulate Mucin 2 maturation through ß1-3-N-acetylglucosaminyltransferase 7 (B3GNT7)-mediated fucosylation. Interestingly, we observed a positive correlation between B3GNT7 expression and OXTR expression in human colitis and CAC colon samples. Moreover, the simultaneous activations of OXTR and fucosylation by l-fucose significantly alleviated tumor burden. Hence, our study unveils oxytocin's promising potential as an affordable and effective therapeutic intervention for individuals affected by colitis and CAC.

10.
Cell Metab ; 36(9): 2086-2103.e9, 2024 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-38971153

RESUMO

The intestine constantly encounters and adapts to the external environment shaped by diverse dietary nutrients. However, whether and how gut adaptability to dietary challenges is compromised in ulcerative colitis is incompletely understood. Here, we show that a transient high-fat diet exacerbates colitis owing to inflammation-compromised bile acid tolerance. Mechanistically, excessive tumor necrosis factor (TNF) produced at the onset of colitis interferes with bile-acid detoxification through the receptor-interacting serine/threonine-protein kinase 1/extracellular signal-regulated kinase pathway in intestinal epithelial cells, leading to bile acid overload in the endoplasmic reticulum and consequent apoptosis. In line with the synergy of bile acids and TNF in promoting gut epithelial damage, high intestinal bile acids correlate with poor infliximab response, and bile acid clearance improves infliximab efficacy in experimental colitis. This study identifies bile acids as an "opportunistic pathogenic factor" in the gut that would represent a promising target and stratification criterion for ulcerative colitis prevention/therapy.


Assuntos
Ácidos e Sais Biliares , Infliximab , Fator de Necrose Tumoral alfa , Animais , Humanos , Masculino , Camundongos , Apoptose/efeitos dos fármacos , Ácidos e Sais Biliares/metabolismo , Colite/metabolismo , Colite/induzido quimicamente , Colite/tratamento farmacológico , Colite/patologia , Colite Ulcerativa/metabolismo , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/patologia , Dieta Hiperlipídica/efeitos adversos , Progressão da Doença , Infliximab/uso terapêutico , Infliximab/farmacologia , Mucosa Intestinal/metabolismo , Mucosa Intestinal/patologia , Camundongos Endogâmicos C57BL , Fator de Necrose Tumoral alfa/metabolismo
11.
Sci Total Environ ; 945: 174163, 2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-38906309

RESUMO

A novel dual-signal fluorometric and colorimetric probe FMDH (5-FAM-Met-Asp-His-NH2), incorporating a tripeptide (Met-Asp-His-NH2) linked to 5-carboxyfluorescein (5-FAM), was firstly synthesised. FMDH demonstrated exceptional selectivity and sensitivity, rapid response, wide pH response range and robust anti-interference capabilities for monitoring Cu2+. This was achieved through a distinctive naked-eye colorimetric and fluorescent quenching behaviour. A good linearity within the range of 0-3 µM (R2 = 0.9914) was attained, and the limit of detection (LOD) for Cu2+ was 47.4 nM. Furthermore, the FMDH-Cu2+ ensemble responded to glyphosate with notable selectivity and sensitivity. A good linear correlation (R2 = 0.9926) was observed at the lower concentration range (2.4-7.8 µM) and achieving a detection limit as low as 29.9 nM. The response time of FMDH with Cu2+ and glyphosate were less than 20 s, and the pH range of 7-11 that was suitable for practical application under physiological pH conditions. MTT assays confirmed that FMDH offers good permeability and low toxicity, facilitating successful application in imaging analysis of Cu2+ and glyphosate in living cells and zebrafish. In addition, FMDH was employed in the detection of these analytes in real water samples. Cost-effective, highly sensitive and easily prepared FMDH-impregnated test strips were developed for the efficient visual detection of Cu2+ and glyphosate under 365 nm UV light. Increasing concentrations of Cu2+ and glyphosate resulted in notable colour changes under 365 nm UV light, enabling visual semi-quantitative analysis via a smartphone colour-analysis App.


Assuntos
Colorimetria , Cobre , Fluorometria , Glicina , Glifosato , Poluentes Químicos da Água , Cobre/análise , Glicina/análogos & derivados , Glicina/análise , Colorimetria/métodos , Poluentes Químicos da Água/análise , Fluorometria/métodos , Corantes Fluorescentes/química , Herbicidas/análise , Limite de Detecção , Peptídeos , Monitoramento Ambiental/métodos , Animais
12.
Foods ; 13(12)2024 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-38928837

RESUMO

Probiotics have become increasingly recognized for their potential health-promoting properties; however, the viability of probiotics can be affected by storage and transportation processes as well as the stressful environment of the human digestive tract, preventing them from achieving effective concentration (107 CFU/mL). In this regard, the embedding technology of probiotics provides an effective protection method. Dextran-based water in water (W/W) emulsion loaded with Lactobacillus plantarum was used as spinning solution to prepare Lactobacillus plantarum-loaded electrospun fibers. The structure of the W/W emulsion and the electrospun fibers was charactered. Lactobacillus plantarum were uniformly embedded in the internal phase of the W/W emulsion and the loading efficiency was 9.70 ± 0.40 log CFU/g. After 240 min digestion in the gastrointestinal tract, and temperature treatment in 65 °C and 72 °C, the loaded probiotics maintained high activity. Even after 5 days of storage in room temperature and 4 °C, the loaded probiotic activity levels remained high, with counts >8 log CFU/g. These results suggest that probiotics encapsulated by emulsion electrospinning could be potentially delivered in a novel food delivery system used in the future food industry.

13.
Food Chem ; 457: 140125, 2024 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-38905826

RESUMO

Oyster is a low-carbon animal food enriched with protein, glycogen, and trace minerals. Nano-nutrients are increasingly perceived as an unignorable part of foods. Here, simulated gastrointestinal digestion released a considerable amount of nanoparticulate nutrients from raw and cooked oysters. They were identified as glycogen monomers with size of 20-40 nm and their aggregates, as well as 6 nm-sized bare cores of ferritin containing iron and zinc (4:1, w/w). FITC-labeling and flow cytometry unveiled the efficient uptake of oyster glycogen by polarized Caco-2 cells via macropinocytosis and receptor-mediated endocytosis. Calcein-fluorescence-quenching assay revealed divalent-metal-transporter-1- and macropinocytosis-mediated enterocyte iron absorption from oyster ferritin. Zinquin-fluorescence flow cytometry and ex-vivo mouse ileal loop experiments demonstrated the ready intestinal zinc absorption from oyster ferritin via macropinocytosis, as well as the good resistance of oyster ferritin to phytate's inhibition on zinc absorption. Overall, our results offer a new insight into the digestive and chemical properties of oysters.


Assuntos
Crassostrea , Digestão , Ferritinas , Glicogênio , Zinco , Animais , Zinco/metabolismo , Humanos , Ferritinas/metabolismo , Ferritinas/química , Células CACO-2 , Crassostrea/metabolismo , Crassostrea/química , Glicogênio/metabolismo , Camundongos , Nanopartículas/química , Nanopartículas/metabolismo , Trato Gastrointestinal/metabolismo , Disponibilidade Biológica , Frutos do Mar/análise
14.
Clin Respir J ; 18(6): e13775, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38830831

RESUMO

Pulmonary heart disease (PHD) involves altered structure and function of the right ventricle caused by an abnormal respiratory system that causes pulmonary hypertension. However, the association between changes in plasma proteomics and PHD remains unclear. Hence, we aimed to identify causal associations between genetically predicted plasma protein levels and PHD. Mendelian randomization was performed to test the target proteins associated with PHD. Summary statistics for the human plasma proteome and pulmonary heart disease were acquired from the UK Biobank (6038 cases and 426 977 controls) and the FinnGen study (6753 cases and 302 401 controls). Publicly available pQTLs datasets for human plasma proteins were obtained from a largescale genome-wide association study in the INTERVAL study. The results were validated using a case-control cohort. We first enrolled 3622 plasma proteins with conditionally independent genetic variants; three proteins (histo-blood group ABO system transferase, activating signal cointegration 1 complex subunit 1, and calcium/calmodulin-dependent protein kinase I [CAMK1]) were significantly associated with the risk of pulmonary heart disease in the UK Biobank cohort. Only CAMK1 was successfully replicated (odds ratio: 1.1056, 95% confidence interval: 1.019-1.095, p = 0.0029) in the FinnGen population. In addition, the level of CAMK1 in 40 patients with PHD was significantly higher (p = 0.023) than that in the control group. This work proposes that CAMK1 is associated with PHD, underscoring the importance of the calcium signaling pathway in the pathophysiology to improve therapies for PHD.


Assuntos
Estudo de Associação Genômica Ampla , Análise da Randomização Mendeliana , Proteoma , Doença Cardiopulmonar , Humanos , Análise da Randomização Mendeliana/métodos , Estudo de Associação Genômica Ampla/métodos , Masculino , Feminino , Proteoma/metabolismo , Estudos de Casos e Controles , Doença Cardiopulmonar/genética , Doença Cardiopulmonar/sangue , Doença Cardiopulmonar/epidemiologia , Pessoa de Meia-Idade , Reino Unido/epidemiologia , Proteínas Sanguíneas/genética , Proteínas Sanguíneas/metabolismo , Sistema ABO de Grupos Sanguíneos/genética , Idoso , Proteômica/métodos , Adulto , Polimorfismo de Nucleotídeo Único
15.
Int J Biol Macromol ; 271(Pt 1): 132571, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38782312

RESUMO

To obtain efficient natural food packaging materials, we utilized acorn starch (AS)-based film strengthened by feruloylated arabinoxylan (FAX) gel and additional retrogradation treatment to extend the shelf life of Agaricus bisporus (A. bisporus). Fourier transform infrared spectroscopy (FT-IR), confocal laser scanning microscopy (CLSM), and scanning electron microscopy (SEM) analyses showed that due to the strong hydrogen bonding between FAX and starch molecules, physical crosslinking occurred between FAX and starch molecules in the composite film, and the microstructure became more compact. Thermogravimetric, tensile strength and swelling degree analyses indicate that the composite film exhibits better thermal stability, mechanical properties, and waterproofing compared to the pure AS film. Consequently, after five days of storage, the moisture content of the A. bisporus packaged with our composite film was 7.53 times and 5.73 times higher than that of the control group and the commercially available PEF group, respectively. Moreover, it delayed the respiration or transpiration of A. bisporus (lower weight loss, relative conductivity, MDA content). This packaging film developed with the objective of eco-friendly and biodegradability has considerable application potential in food and other industries.


Assuntos
Agaricus , Embalagem de Alimentos , Amido , Xilanos , Xilanos/química , Amido/química , Agaricus/química , Embalagem de Alimentos/métodos , Conservação de Alimentos/métodos , Géis/química , Resistência à Tração , Ananas/química , Espectroscopia de Infravermelho com Transformada de Fourier
16.
Food Res Int ; 186: 114321, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38729691

RESUMO

Biogenic nanoparticles are promising carriers to deliver essential minerals. Here, calcium-enriched polyphosphate nanoparticles (CaPNPs) with a Ca/P molar ratio > 0.5 were produced by Synechococcus sp. PCC 7002 in the growth medium containing 1.08 g/L CaCl2, and had nearly spherical morphologies with a wide size distribution of 5-75 nm and strongly anionic surface properties with an average ζ-potential of -39 mV, according to dynamic light-scattering analysis, transmission and scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The ex-vivo ligated mouse ileal loop assays found that calcium in CaPNPs was readily available to intestinal absorption via both ion channel-mediated and endocytic pathways, specifically invoking macropinocytic internalization, lysosomal degradation, and transcytosis. Rat oral pharmacokinetics revealed that CaPNPs had a calcium bioavailability approximately 100 % relative to that of CaCl2 and more than 1.6 times of that of CaCO3. CaPNPs corrected the retinoic acid-induced increase in serum calcium, phosphorus, and bone-specific alkaline phosphatase, and decrease in serum osteocalcin, bone mineral content/density, and femoral geometric parameters with an efficacy equivalent to CaCl2 and markedly greater than CaCO3. In contrast to CaCl2, CaPNPs possessed desirable resistance against phytate's antagonistic action on calcium absorption in these ex vivo and in vivo studies. Overall, CaPNPs are attractive as a candidate agent for calcium supplementation, especially to populations on high-phytate diets.


Assuntos
Disponibilidade Biológica , Cálcio , Microalgas , Nanopartículas , Ácido Fítico , Polifosfatos , Animais , Polifosfatos/química , Camundongos , Ácido Fítico/química , Cálcio/metabolismo , Masculino , Ratos , Absorção Intestinal/efeitos dos fármacos , Ratos Sprague-Dawley
17.
Spectrochim Acta A Mol Biomol Spectrosc ; 317: 124424, 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-38733917

RESUMO

A new peptide-based fluorescent probe named DMDH with easy-to-synthesize, excellent stability, good water solubility and large Stokes shift (225 nm) was synthesized for highly selective sequential detections of copper ions (Cu2+) and glyphosate (Glyp). DMDH demonstrated great detection performance towards Cu2+via strong fluorescence quenching, and forming non-fluorescence DMDH-Cu2+ ensemble. As a new promising cascade probe, the fluorescence of DMDH-Cu2+ ensemble was significantly recovered based on displacement approach after glyphosate was added. Interestingly, the limit of detections (LODs) for Cu2+ and glyphosate were 40.6 nM and 10.6 nM, respectively, which were far lower than those recommended by the WHO guidelines for drinking water. More importantly, DMDH was utilized to evaluate Cu2+ and glyphosate content in three real water samples, demonstrating that its effectiveness in water quality monitoring. Additionally, it is worth noting that DMDH was also applied to analyze Cu2+ and glyphosate in living cells in view of significant cells permeability and low cytotoxicity. Moreover, DMDH soaked in filter paper was used to create qualitative test strips and visually identify Cu2+ and glyphosate through significant color changes. Furthermore, smartphone RGB color recognition provided a new method for semi-quantitative testing of Cu2+ and glyphosate in the absence of expensive instruments.


Assuntos
Cobre , Corantes Fluorescentes , Glicina , Glifosato , Peptídeos , Smartphone , Espectrometria de Fluorescência , Cobre/análise , Cobre/química , Glicina/análogos & derivados , Glicina/análise , Glicina/química , Corantes Fluorescentes/química , Corantes Fluorescentes/síntese química , Humanos , Espectrometria de Fluorescência/métodos , Peptídeos/química , Limite de Detecção , Fitas Reagentes/análise , Poluentes Químicos da Água/análise , Células HeLa , Água Potável/análise
18.
Bioresour Technol ; 403: 130904, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38801957

RESUMO

Chlamydomonas reinhardtii prefers ammonium (NH4+) as a nitrogen source, but its late-stage growth under high-NH4+ concentrations (0.5 âˆ¼ 1 g/L) is retarded due to medium acidification. In this study, oyster shell powders were shown to increase the tolerance of C. reinhardtii to NH4+ supplementation at 0.7 g/L in TAP medium in 1-L bubble-column bioreactors, resulting in a 22.9 % increase in biomass production, 62.1 % rise in unsaturated fatty acid accumulation, and 19.2 % improvement in harvesting efficiency. Powdered oyster shell mitigated medium acidification (pH 7.2-7.8) and provided dissolved inorganic carbon up to 8.02 × 103 µmol/L, facilitating a 76.3 % NH4+ consumption, release of up to 189 mg/L of Ca2+, a 42.1 % reduction in ζ-potential and 27.7 % increase in flocculation activity of microalgae cells. This study highlights a promising approach to utilize powdered oyster shell as a liming agent, supplement carbon source, and bio-flocculant for enhancing biomass production and microalgae harvesting in NH4+-rich environments.


Assuntos
Compostos de Amônio , Biomassa , Chlamydomonas reinhardtii , Ostreidae , Animais , Chlamydomonas reinhardtii/metabolismo , Chlamydomonas reinhardtii/crescimento & desenvolvimento , Exoesqueleto , Pós , Floculação , Carbono , Concentração de Íons de Hidrogênio , Reatores Biológicos , Nitrogênio
19.
Front Clin Diabetes Healthc ; 5: 1318578, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38721345

RESUMO

Objective: To investigate the association between the dietary intake of linoleic acid (LA) and alpha linolenic acid (ALA) with mortality outcomes in patients with diabetes. Participants: 3,112 U.S. adults aged≥20 years. Setting: Basic information was collected at baseline of the National Health and Nutrition Examination Survey (NHANES). Serum CRP (mg/dL), total protein (g/L), waist circumference (cm), fasting blood glucose (mmol/L), white blood cell count, serum LDL-C, and serum HDL-C were also measured. Daily diets were also recorded using a 24-hour dietary review to produce the individuals' intake of LA and ALA. The association between tertiles of LA and ALA intake with mortality was analyzed by weighted Cox models adjusted for the main confounders. Main outcome measures: The study included 3,112 adults with diabetes from the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2008. Death outcomes were ascertained by linkage to the database records through 31 December 2015. Results: Subjects with a high intake of LA (T3) had 17% [hazard ratio (HR) 0.83, 95% CI 0.70 to 0.99) and 48% (HR=0.52, 0.35 to 0.80)] reductions in all-cause mortality and cardiovascular mortality, respectively, compared with subjects with lowest intake (T1). Similar results were observed for ALA, HR of cardiovascular mortality was 0.55 (0.38 to 0.81) and for all-cause mortality was 0.85 (0.69 to 1.04) comparing the highest to lowest intake tertiles. Conclusion: Higher intakes of LA and ALA were inversely associated with CVD and all-cause deaths in patients with diabetes. Proper dietary intakes of LA and ALA could contribute to the cardiovascular health and the long-term survival of patients with diabetes.

20.
Coron Artery Dis ; 35(6): 490-497, 2024 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-38682446

RESUMO

BACKGROUND: Left ventricular aneurysm (LVA) is an important complication of acute myocardial infarction. This study aimed to investigate the potential predictive value of the monocyte count to high-density lipoprotein cholesterol ratio (MHR) and a composite risk score in determining the formation of LVA in patients with acute ST-segment elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention. METHODS: We recruited 1005 consecutive patients with STEMI. Multivariable logistic regression analysis was conducted identify the independent risk factors for LVA formation. Predictive power of MHR and composite risk score for LVA formation were assessed using receiver operating characteristic curve analysis. RESULTS: The MHR was significantly higher among patients with LVA compared to those without LVA [6.6 (3.8-10.8) vs. 4.6 (3.3-6.3), P  < 0.001]. Univariable logistic regression analysis revealed that MHR (OR = 3.866, 95% CI = 2.677-5.582, P  < 0.001) was associated with the risk of LVA formation. The predictive value of MHR remained significant even after multivariate logistic regression analysis [odds ratio (OR) = 4.801, 95% confidence interval (CI) = 2.672-8.629, P  < 0.001]. The discriminant power of MHR for LVA is 0.712, which is superior to both monocyte ( C statistic = 0.553) and high-density lipoprotein cholesterol ( C statistic = 0.654). The composite risk score including MHR, gender, LVEF, hemoglobin, lymphocyte and left anterior descending artery as the culprit vessel could significantly increase the predictive ability ( C statistic = 0.920). CONCLUSION: A higher MHR could effectively identify individuals at high risk of LVA formation, especially when combined with gender, LVEF, hemoglobin, lymphocyte and left anterior descending artery as the culprit vessel.


Assuntos
Biomarcadores , HDL-Colesterol , Aneurisma Cardíaco , Monócitos , Intervenção Coronária Percutânea , Valor Preditivo dos Testes , Infarto do Miocárdio com Supradesnível do Segmento ST , Humanos , Masculino , Feminino , Infarto do Miocárdio com Supradesnível do Segmento ST/sangue , Infarto do Miocárdio com Supradesnível do Segmento ST/complicações , Pessoa de Meia-Idade , HDL-Colesterol/sangue , Fatores de Risco , Intervenção Coronária Percutânea/métodos , Medição de Risco/métodos , Idoso , Aneurisma Cardíaco/sangue , Aneurisma Cardíaco/complicações , Biomarcadores/sangue , Curva ROC , Análise Multivariada , Modelos Logísticos , Contagem de Leucócitos , Ventrículos do Coração/fisiopatologia , Ventrículos do Coração/diagnóstico por imagem , Estudos Retrospectivos , Área Sob a Curva , Razão de Chances
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