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1.
Molecules ; 29(15)2024 Jul 30.
Article de Anglais | MEDLINE | ID: mdl-39125009

RÉSUMÉ

Human pharyngeal squamous cell carcinoma (HPSCC) is the most common malignancy in the head and neck region, characterized by high mortality and a propensity for metastasis. Fucoxanthin, a carotenoid isolated from brown algae, exhibits pharmacological properties associated with the suppression of tumor proliferation and metastasis. Nevertheless, its potential to inhibit HPSCC proliferation and metastasis has not been fully elucidated. This study represents the first exploration of the inhibitory effects of fucoxanthin on two human pharyngeal squamous carcinoma cell lines (FaDu and Detroit 562), as well as the mechanisms underlying those effects. The results showed dose-dependent decreases in the proliferation, migration, and invasion of HPSCC cells after fucoxanthin treatment. Further studies indicated that fucoxanthin caused a significant reduction in the expression levels of proteins in the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mechanistic target of rapamycin (mTOR) pathway, as well as the downstream proteins matrix metalloproteinase (MMP)-2 and MMP-9. Specific activators of PI3K/AKT reversed the effects of fucoxanthin on these proteins, as well as on cell proliferation and metastasis, in FaDu and Detroit 562 cells. Molecular docking assays confirmed that fucoxanthin strongly interacted with PI3K, AKT, mTOR, MMP-2, and MMP-9. Overall, fucoxanthin, a functional food component, is a potential therapeutic agent for HPSCC.


Sujet(s)
Mouvement cellulaire , Prolifération cellulaire , Phosphatidylinositol 3-kinases , Protéines proto-oncogènes c-akt , Transduction du signal , Sérine-thréonine kinases TOR , Xanthophylles , Humains , Sérine-thréonine kinases TOR/métabolisme , Xanthophylles/pharmacologie , Xanthophylles/composition chimique , Protéines proto-oncogènes c-akt/métabolisme , Prolifération cellulaire/effets des médicaments et des substances chimiques , Transduction du signal/effets des médicaments et des substances chimiques , Phosphatidylinositol 3-kinases/métabolisme , Lignée cellulaire tumorale , Mouvement cellulaire/effets des médicaments et des substances chimiques , Tumeurs du pharynx/traitement médicamenteux , Tumeurs du pharynx/anatomopathologie , Tumeurs du pharynx/métabolisme , Carcinome épidermoïde/traitement médicamenteux , Carcinome épidermoïde/métabolisme , Carcinome épidermoïde/anatomopathologie , Métastase tumorale , Simulation de docking moléculaire
2.
PeerJ ; 12: e17715, 2024.
Article de Anglais | MEDLINE | ID: mdl-39119104

RÉSUMÉ

Postharvest rot caused by various fungal pathogens is a damaging disease affecting kiwifruit production and quality, resulting in significant annual economic losses. This study focused on isolating the strain P3-1W, identified as Diaporthe eres, as the causal agent of 'Hongyang' postharvest rot disease in China. The investigation highlighted cell wall degrading enzymes (CWDEs) as crucial pathogenic factors. Specially, the enzymatic activities of cellulase, ß-galactosidase, polygalacturonase, and pectin methylesterases peaked significantly on the second day after infection of D. eres P3-1W. To gain a comprehensive understanding of these CWDEs, the genome of this strain was sequenced using PacBio and Illumina sequencing technologies. The analysis revealed that the genome of D. eres P3-1W spans 58,489,835 bp, with an N50 of 5,939,879 bp and a GC content of 50.7%. A total of 15,407 total protein-coding genes (PCGs) were predicted and functionally annotated. Notably, 857 carbohydrate-active enzymes (CAZymes) were identified in D. eres P3-1W, with 521 CWDEs consisting of 374 glycoside hydrolases (GHs), 108 carbohydrate esterase (CEs) and 91 polysaccharide lyases (PLs). Additionally, 221 auxiliary activities (AAs), 91 glycosyltransferases (GTs), and 108 carbohydrate binding modules (CBMs) were detected. These findings offer valuable insights into the CAZymes of D. eres P3-1W.


Sujet(s)
Actinidia , Ascomycota , Génome fongique , Maladies des plantes , Actinidia/microbiologie , Maladies des plantes/microbiologie , Chine , Ascomycota/génétique , Ascomycota/pathogénicité , Ascomycota/enzymologie , Génome fongique/génétique , Polygalacturonase/génétique , Polygalacturonase/métabolisme , Fruit/microbiologie , Carboxylic ester hydrolases/génétique , Carboxylic ester hydrolases/métabolisme , Protéines fongiques/génétique , Protéines fongiques/métabolisme , Cellulase/génétique , Cellulase/métabolisme , Paroi cellulaire/métabolisme , beta-Galactosidase/génétique , beta-Galactosidase/métabolisme
3.
bioRxiv ; 2024 Jun 30.
Article de Anglais | MEDLINE | ID: mdl-38979147

RÉSUMÉ

Proteins are inherently dynamic, and their conformational ensembles are functionally important in biology. Large-scale motions may govern protein structure-function relationship, and numerous transient but stable conformations of intrinsically disordered proteins (IDPs) can play a crucial role in biological function. Investigating conformational ensembles to understand regulations and disease-related aggregations of IDPs is challenging both experimentally and computationally. In this paper we first introduced an unsupervised deep learning-based model, termed Internal Coordinate Net (ICoN), which learns the physical principles of conformational changes from molecular dynamics (MD) simulation data. Second, we selected interpolating data points in the learned latent space that rapidly identify novel synthetic conformations with sophisticated and large-scale sidechains and backbone arrangements. Third, with the highly dynamic amyloid-ß 1-42 (Aß42) monomer, our deep learning model provided a comprehensive sampling of Aß42's conformational landscape. Analysis of these synthetic conformations revealed conformational clusters that can be used to rationalize experimental findings. Additionally, the method can identify novel conformations with important interactions in atomistic details that are not included in the training data. New synthetic conformations showed distinct sidechain rearrangements that are probed by our EPR and amino acid substitution studies. This approach is highly transferable and can be used for any available data for training. The work also demonstrated the ability for deep learning to utilize learned natural atomistic motions in protein conformation sampling.

4.
Res Sq ; 2024 Jun 28.
Article de Anglais | MEDLINE | ID: mdl-38978607

RÉSUMÉ

Proteins are inherently dynamic, and their conformational ensembles are functionally important in biology. Large-scale motions may govern protein structure-function relationship, and numerous transient but stable conformations of intrinsically disordered proteins (IDPs) can play a crucial role in biological function. Investigating conformational ensembles to understand regulations and disease-related aggregations of IDPs is challenging both experimentally and computationally. In this paper first an unsupervised deep learning-based model, termed Internal Coordinate Net (ICoN), is developed that learns the physical principles of conformational changes from molecular dynamics (MD) simulation data. Second, interpolating data points in the learned latent space are selected that rapidly identify novel synthetic conformations with sophisticated and large-scale sidechains and backbone arrangements. Third, with the highly dynamic amyloid-ß1-42 (Aß42) monomer, our deep learning model provided a comprehensive sampling of Aß42's conformational landscape. Analysis of these synthetic conformations revealed conformational clusters that can be used to rationalize experimental findings. Additionally, the method can identify novel conformations with important interactions in atomistic details that are not included in the training data. New synthetic conformations showed distinct sidechain rearrangements that are probed by our EPR and amino acid substitution studies. The proposed approach is highly transferable and can be used for any available data for training. The work also demonstrated the ability for deep learning to utilize learned natural atomistic motions in protein conformation sampling.

5.
Clin Transl Oncol ; 2024 Jul 24.
Article de Anglais | MEDLINE | ID: mdl-39046681

RÉSUMÉ

BACKGROUND: The significant expression of PD-L1 in thymic epithelial tumors (TETs) has been confirmed, and immunotherapy and its combination therapy have been effective in TETs. However, there is no present evidence that the expression levels of PD-L1 affects the efficacy of combination therapy. Our study aimed to shed light on this relationship. METHODS: Patients with thymic epithelial tumors (TETs) from multicenter hospitals were retrospectively identified. Objective response rate (ORR), progression-free survival (PFS), overall survival (OS), and immune-related adverse events (irAEs) in 22 patients were included. We divided the patients the 22 patients with PD-L1 test into three levels (high expression, low expression and no expression) and analyzed the relationship between the levels of PD-L1 expression and the efficacy of combination therapy. RESULTS: Combination therapy showed an effective benefit in 22 patients with TETs, the median PFS (mPFS) was 16 months (95% CI: 8.5-23.5) and the median OS (mOS) was 38 months (95% CI: 21.5-54.5). Cox-regressive analysis found whether PD-L1 expression affected the PFS of patients (p = 0.017). Among the patients with PD-L1 expression, the levels of expression were correlated with curative effect (Kruskal-Wallis test, PFS: P = 0.012; OS: P = 0.01), and high expression group was along with better efficacy than low expression (Wilcoxon test, P = 0.01). Moreover, in 17 patients treated with immunotherapy combined with chemotherapy, the expression of PD-L1 was also associated with efficacy (Kruskal-Wallis test, p = 0.021). CONCLUSIONS: PD-L1 expression affects the PFS of patients. High expression of PD-L1 patients with TETs responded better to combination therapy, which could provide a therapeutic option in clinic. Besides, other targeted treatments should be considered.

6.
Acta Otolaryngol ; : 1-8, 2024 Jul 21.
Article de Anglais | MEDLINE | ID: mdl-39033361

RÉSUMÉ

BACKGROUND: Keratinizing squamous cell carcinoma (KSCC) is recognized as WHO I nasopharyngeal carcinoma (NPC). Current guidelines for treating nasopharyngeal cancer do not delineate specific strategies for individual pathologic subtypes. OBJECTIVES: To explore the optimal treatment for KSCC of the nasopharynx. MATERIAL AND METHODS: Data on patients were extracted from the SEER database. Survival differences between patients treated with radiotherapy alone and combined surgery were assessed using Kaplan-Meier and Cox regression models and compared using propensity score matching (PSM). In addition, we explored the survival differences between the two groups of patients in different risk stratifications. RESULTS: In our study, 165 patients underwent surgical intervention, while 1238 patients did not. In both univariate (CSS: p = .001, HR = 0.612; OS: p < .001, HR = 0.623) and multivariate (CSS: p = .004, HR = 0.655; OS: p < .001, HR = 0.655) analyses, combined surgery was identified as a significant prognostic factor. These findings were consistent after PSM. Using RPA, patients were categorized into two groups. CSS improved in the high-risk group, whereas the difference in low-risk patients was not significant. CONCLUSIONS AND SIGNIFICANCE: For patients diagnosed with WHO I nasopharyngeal carcinoma, the combination of radiotherapy and surgery has significant clinical advantages, especially for patients at high risk.

7.
Hematology ; 29(1): 2377860, 2024 Dec.
Article de Anglais | MEDLINE | ID: mdl-39007733

RÉSUMÉ

BACKGROUD: Li-Fraumeni syndrome is a hereditary tumor syndrome characterized by an elevated risk of malignancy, particularly acute lymphoblastic leukemia (ALL), which can be caused by the heterozygous germline mutation. TP53 gene germline mutation is considered a potential risk factor and crucial prognostic parameter for acute leukemia development and diagnosis, but rarely occurs in adults, and its specific pathogenic significance in acute leukemia is unclear. CASE PRESENTATION: We describes a case of a 45-year-old woman diagnosed with ALL. Whole-exome sequencing approach identified one of the TP53 germline mutations from her bone marrow sample with possible pathogenic significance, c.848G>A (p.Arg283His) heterozygous missense mutation located on exon 8, which was further verified in her hair, oral mucous and nail samples. Family pedigree screening revealed that the same TP53 genetic variant was present in the patient's father and non-donor son, whereas not in the donor. Digital PCR observed that this point mutation frequency dropped post-transplantation but remained low during maintenance therapy when the patient was leukemia-free. CONCLUSION: This suspected Li-Fraumeni syndrome case report with a likely pathogenic heterozygous TP53 variant expands the cancer genetic spectrum. Screening her family members for mutations facilitates identifying the optimal relative donor and avoids unnecessary treatment by monitoring TP53 germline mutations for minimal residual disease following hematopoietic stem cell transplantation. Its potential roles in hematological malignant tumor development and clinical pathogenic implications necessitate further probing.


Sujet(s)
Mutation germinale , Syndrome de Li-Fraumeni , Leucémie-lymphome lymphoblastique à précurseurs B et T , Protéine p53 suppresseur de tumeur , Humains , Femelle , Leucémie-lymphome lymphoblastique à précurseurs B et T/génétique , Leucémie-lymphome lymphoblastique à précurseurs B et T/diagnostic , Leucémie-lymphome lymphoblastique à précurseurs B et T/thérapie , Adulte d'âge moyen , Protéine p53 suppresseur de tumeur/génétique , Syndrome de Li-Fraumeni/génétique , Syndrome de Li-Fraumeni/diagnostic , Pedigree
8.
Nat Commun ; 15(1): 5969, 2024 Jul 16.
Article de Anglais | MEDLINE | ID: mdl-39013920

RÉSUMÉ

The proficiency of phyllosphere microbiomes in efficiently utilizing plant-provided nutrients is pivotal for their successful colonization of plants. The methylotrophic capabilities of Methylobacterium/Methylorubrum play a crucial role in this process. However, the precise mechanisms facilitating efficient colonization remain elusive. In the present study, we investigate the significance of methanol assimilation in shaping the success of mutualistic relationships between methylotrophs and plants. A set of strains originating from Methylorubrum extorquens AM1 are subjected to evolutionary pressures to thrive under low methanol conditions. A mutation in the phosphoribosylpyrophosphate synthetase gene is identified, which converts it into a metabolic valve. This valve redirects limited C1-carbon resources towards the synthesis of biomass by up-regulating a non-essential phosphoketolase pathway. These newly acquired bacterial traits demonstrate superior colonization capabilities, even at low abundance, leading to increased growth of inoculated plants. This function is prevalent in Methylobacterium/Methylorubrum strains. In summary, our findings offer insights that could guide the selection of Methylobacterium/Methylorubrum strains for advantageous agricultural applications.


Sujet(s)
Méthanol , Methylobacterium , Methylobacterium/métabolisme , Methylobacterium/génétique , Methylobacterium/enzymologie , Methylobacterium/croissance et développement , Méthanol/métabolisme , Symbiose , Mutation , Aldehyde-lyases/métabolisme , Aldehyde-lyases/génétique , Protéines bactériennes/métabolisme , Protéines bactériennes/génétique , Feuilles de plante/microbiologie , Feuilles de plante/croissance et développement , Methylobacterium extorquens/génétique , Methylobacterium extorquens/métabolisme , Methylobacterium extorquens/croissance et développement , Methylobacterium extorquens/enzymologie , Développement des plantes , Microbiote/génétique , Biomasse
9.
Int J Mol Sci ; 25(13)2024 Jul 05.
Article de Anglais | MEDLINE | ID: mdl-39000488

RÉSUMÉ

The capsule-associated protein 10 gene (CAP10) is indispensable due to its involvement in pod formation and virulence maintenance in Cryptococcus neoformans. The function of the CAP10 gene in nematode-predatory fungi remains unreported. As a typical nematode-trapping fungus, Dactylellina haptotyla efficiently captures nematodes using adhesive knobs, which has potential applications in the biological control of plant-parasitic nematodes. In this study, we investigated the function of DHXT1 (a CAP10 homologous protein) in D. haptotyla-nematode interactions based on the disruption and overexpression of DHXT1, phenotypic analysis and metabolomic analysis. As a result, it was shown that the disruption of the DHXT1 gene causes a marked decrease in the number of adhesive knobs, and on the contrary, the overexpression of the DHXT1 gene causes a substantial increase in the number of adhesive knobs. Interestingly, the variety of metabolites increased with the disruption of the DHXT1 and decreased with the overexpression of the DHXT1 gene. The results suggest that DHXT1 effects pathogenicity through its involvement in adhesive knobs' formation and metabolite synthesis and serves as a key virulence factor in D. haptotyla.


Sujet(s)
Protéines fongiques , Facteurs de virulence , Facteurs de virulence/métabolisme , Facteurs de virulence/génétique , Animaux , Protéines fongiques/métabolisme , Protéines fongiques/génétique , Virulence , Maladies des plantes/parasitologie , Maladies des plantes/microbiologie
10.
Int J Nurs Pract ; : e13289, 2024 Jul 29.
Article de Anglais | MEDLINE | ID: mdl-39075877

RÉSUMÉ

AIM: This qualitative systematic review aimed to consolidate existing evidence on the self-management experience of older patients with multimorbidity worldwide. METHODS: Nine databases were searched, for papers published from database inception to April 2023. The systematic review was conducted according to the systematic review method of qualitative evidence by the Joanna Briggs Institute (JBI). RESULTS: Seven studies were included. Finally, four themes and 12 subthemes were formed: (1) physical level: reduced physical function and lack of coordinated care; (2) psychological level: mental state of anxiety and positive attitude towards life; (3) social level: technical support, support from family, support from healthcare workers and support from others; and (4) practical level: economic burden, lifestyle changes, self-care in daily life and compliance was much lower than expected. CONCLUSIONS: To improve self-management in older people with multimorbidity, nurses should provide more guidance to patients to improve their self-management skills, and clinicians should recommend effective self-management behaviours.

11.
Int J Clin Oncol ; 2024 Jun 05.
Article de Anglais | MEDLINE | ID: mdl-38839664

RÉSUMÉ

BACKGROUND: Intrahepatic recurrence is one of the main causes of treatment failure in patients with colorectal cancer liver metastasis (CRLM). Hepatic steatosis was reported to provide fertile soil for metastasis. The effect of irinotecan-inducted hepatic steatosis on the progression of liver metastasis remains to be verified. Therefore, we aim to clarify the effect of hepatic steatosis on postoperative intrahepatic recurrence in CRLM and whether it is relevant to irinotecan-based chemotherapy. METHODS: Data for a total of 284 patients undergoing curative surgical treatment for CRLMs were retrospectively reviewed between March 2007 and June 2018. Hepatic steatosis score (HSS) was established by combining Liver to Spleen CT ratio (LSR) and Uric acid to HDL-cholesterol ratio (UHR) to detect the presence of hepatic steatosis. RESULTS: The evaluation model is consistent with pathological results and has high prediction ability and clinical application value. Patients with HSS high risk (HSS-HR) had significantly worse prognosis than those with HSS low risk (HSS-LR) (3-year intrahepatic RFS: 42.7% vs. 29.4%, P = 0.003; 5-year OS: 45.7% vs. 26.5%, P = 0.002). Univariate and multivariate analysis confirmed its essential role in the prediction of intrahepatic RFS. Besides, patients treated with preoperative irinotecan chemotherapy were more likely to end up with HSS-HR than those with non-irinotecan chemotherapy (63.3% vs. 21.8%, P < 0.001). Furthermore, irinotecan chemotherapy is relevant to worse prognosis in baseline HSS-HR patients. CONCLUSION: In summary, patients with HSS-HR had significantly worse 5-year OS and 3-year intrahepatic RFS. Irinotecan chemotherapy is more likely to lead to HSS-HR and pre-existing hepatic steatosis may be a worse prognostic factor limiting patients underwent IRI-based chemotherapy.

13.
Environ Res ; 257: 119286, 2024 Sep 15.
Article de Anglais | MEDLINE | ID: mdl-38824987

RÉSUMÉ

BACKGROUND: Recent evidences highlight the potential impact of outdoor Light at Night (LAN) on executive function. However, few studies have investigated the association between outdoor LAN exposure and executive function. METHODS: We employed data from 48,502 Chinese children aged 5-12 years in a cross-sectional study conducted in Guangdong province during 2020-2021, to examine the association between outdoor LAN and executive function assessed using the validated parent-completed Behavior Rating Inventory of Executive Function. We assessed children's outdoor LAN exposure using the night-time satellite images based on the residential addresses. We used generalized linear mixed models to estimate the association between outdoor LAN exposure and executive function scores and executive dysfunction. RESULTS: After adjusting for potential covariates, higher quintiles of outdoor LAN exposure were associated with poorer executive function. Compared to the lowest quintile (Q1), all higher quintiles of exposure showed a significant increased global executive composite (GEC) score with ß (95% confidence intervals, CI) of 0.58 (0.28, 0.88) in Q2, 0.59 (0.28, 0.9) in Q3, 0.85 (0.54, 1.16) in Q4, and 0.76 (0.43, 1.09) in Q5. Higher quintiles of exposure were also associated with higher risks for GEC dysfunction with odd ratios (ORs) (95% CI) of 1.34 (1.18, 1.52) in Q2, 1.40 (1.24, 1.59) in Q3, 1.40 (1.23, 1.59) in Q4, and 1.39 (1.22, 1.58) in Q5. And stronger associations were observed in children aged 10-12 years. CONCLUSIONS: Our study suggested that high outdoor LAN exposure was associated with poor executive function in children. These findings suggested that future studies should determine whether interventions to reduce outdoor LAN exposure can have a positive effect on executive function.


Sujet(s)
Fonction exécutive , Humains , Enfant , Mâle , Femelle , Études transversales , Enfant d'âge préscolaire , Chine , Exposition environnementale , Lumière , Éclairage/effets indésirables , Peuples d'Asie de l'Est
14.
J Agric Food Chem ; 72(26): 14684-14700, 2024 Jul 03.
Article de Anglais | MEDLINE | ID: mdl-38905352

RÉSUMÉ

The overuse of antibiotics in animal farming and aquaculture has led to multidrug-resistant methicillin-sensitive Staphylococcus aureus (MR-MSSA) becoming a common pathogen in foodborne diseases. Sophora flavescens Ait. serves as a traditional plant antibacterial agent and functional food ingredient. A total of 30 compounds (1-30) were isolated from the root bark of S. flavescens, consisting of 20 new compounds (1-20). In the biological activity assay, compound 1 demonstrated a remarkable inhibitory effect on MR-MSSA, with an MIC of 2 µg/mL. Furthermore, 1 was found to rapidly eliminate bacteria, inhibit biofilm growth, and exhibit exceptionally low cytotoxicity. Mechanistic studies have revealed that 1 possesses an enhanced membrane-targeting ability, binding to the bacterial cell membrane components phosphatidylglycerol (PG), phosphatidylethanolamine (PE), and cardiolipin (CL). This disruption of bacterial cell membrane integrity increases intracellular reactive oxygen species, protein and DNA leakage, reduced bacterial metabolism, and ultimately bacterial death. In summary, these findings suggest that compound 1 holds promise as a lead compound against MR-MSSA.


Sujet(s)
Antibactériens , Perméabilité des membranes cellulaires , Flavonoïdes , Tests de sensibilité microbienne , Écorce , Extraits de plantes , Racines de plante , Sophora , Sophora/composition chimique , Antibactériens/pharmacologie , Antibactériens/composition chimique , Racines de plante/composition chimique , Écorce/composition chimique , Perméabilité des membranes cellulaires/effets des médicaments et des substances chimiques , Flavonoïdes/pharmacologie , Flavonoïdes/composition chimique , Extraits de plantes/pharmacologie , Extraits de plantes/composition chimique , Biofilms/effets des médicaments et des substances chimiques , Humains , Staphylococcus aureus résistant à la méticilline/effets des médicaments et des substances chimiques , Staphylococcus aureus/effets des médicaments et des substances chimiques , Membrane cellulaire/effets des médicaments et des substances chimiques , Membrane cellulaire/métabolisme , Sophora flavescens
15.
Geriatr Nurs ; 58: 238-246, 2024.
Article de Anglais | MEDLINE | ID: mdl-38838406

RÉSUMÉ

OBJECTIVE: To evaluate the effectiveness of home-based cardiac telerehabilitation based on wearable electrocardiogram or heart rate monitoring devices in patients with heart disease. METHODS: We searched eight electronic databases under the guidance of Cochrane Handbook and PRISMA recommendations. RESULTS: The meta-analysis included data from 14 articles (15 RCTs) representing 1314 participants. A significant improvement in left ventricular ejection fraction [MD = 2.12, 95 % CI (1.21, 3.04), P < 0.001], 6-minute walk distance [MD = 40.00, 95 % CI (21.72, 58.29), P < 0.001] and peak oxygen intake [MD = 2.24, 95 % CI (1.38, 3.10), P < 0.001] were observed in the home-based cardiac telerehabilitation group. But it had no difference in anxiety [SMD = -0.83, 95 % CI (-1.65, -0.02), P = 0.05] and depression [SMD = -0.59, 95 % CI (-1.26, 0.09), P = 0.09]. Subgroup analyses revealed that interventions of no less than 3 months improved anxiety [SMD = -1.11, 95 % CI (-2.05, -0.18), P = 0.02] and depression [SMD = -1.01, 95 % CI (-1.93, -0.08), P = 0.03]. CONCLUSION: Home-based cardiac telerehabilitation based on wearable electrocardiogram or heart rate monitoring devices has a positive effect on cardiac function. Long-term (≥ 3 months) cardiac rehabilitation might benefit individuals suffering from anxiety or depression.


Sujet(s)
Électrocardiographie , Cardiopathies , Rythme cardiaque , Essais contrôlés randomisés comme sujet , Téléréadaptation , Dispositifs électroniques portables , Humains , Rythme cardiaque/physiologie , Cardiopathies/rééducation et réadaptation , Services de soins à domicile , Réadaptation cardiaque/méthodes , Monitorage physiologique/instrumentation , Monitorage physiologique/méthodes
16.
Front Immunol ; 15: 1395047, 2024.
Article de Anglais | MEDLINE | ID: mdl-38694500

RÉSUMÉ

The emergence of resistance to prostate cancer (PCa) treatment, particularly to androgen deprivation therapy (ADT), has posed a significant challenge in the field of PCa management. Among the therapeutic options for PCa, radiotherapy, chemotherapy, and hormone therapy are commonly used modalities. However, these therapeutic approaches, while inducing apoptosis in tumor cells, may also trigger stress-induced premature senescence (SIPS). Cellular senescence, an entropy-driven transition from an ordered to a disordered state, ultimately leading to cell growth arrest, exhibits a dual role in PCa treatment. On one hand, senescent tumor cells may withdraw from the cell cycle, thereby reducing tumor growth rate and exerting a positive effect on treatment. On the other hand, senescent tumor cells may secrete a plethora of cytokines, growth factors and proteases that can affect neighboring tumor cells, thereby exerting a negative impact on treatment. This review explores how radiotherapy, chemotherapy, and hormone therapy trigger SIPS and the nuanced impact of senescent tumor cells on PCa treatment. Additionally, we aim to identify novel therapeutic strategies to overcome resistance in PCa treatment, thereby enhancing patient outcomes.


Sujet(s)
Vieillissement de la cellule , Résistance aux médicaments antinéoplasiques , Tumeurs de la prostate , Humains , Vieillissement de la cellule/effets des médicaments et des substances chimiques , Mâle , Tumeurs de la prostate/traitement médicamenteux , Tumeurs de la prostate/anatomopathologie , Tumeurs de la prostate/thérapie , Tumeurs de la prostate/métabolisme , Animaux
17.
Inorg Chem ; 63(21): 9899-9906, 2024 May 27.
Article de Anglais | MEDLINE | ID: mdl-38743634

RÉSUMÉ

A series of new trigonal pyramidal {SeO2(OH)} bridging lanthanide-containing antimono-seleno-tungstates [H2N(CH3)2]8Na8Cs4H9[Ln2SeW4O11(OH)(H2O)4(SbW9O33)(SeW9O33)(Se1/2Sb1/2W9O33)]2·32H2O [Ln = Tb (1), Dy (2), Ho (3), Er (4)] have been prepared by the synthetic strategy of simultaneously using the antimonotungstate precursor and simple material in an acidic aqueous solution and structurally characterized by single-crystal X-ray diffraction, powder X-ray diffraction, IR spectrometry, and thermogravimetric analysis. Their molecular structures contain an unprecedented hexameric polyoxoanion [Ln2SeW4O11(OH)(H2O)4(SbW9O33)(SeW9O33)(Se1/2Sb1/2W9O33)]229- constituted by two equivalent trimeric subunits Ln2W4O9(H2O)4(SbW9O33)(SeW9O33)(Se1/2Sb1/2W9O33) bridged via two µ2-{SeO2(OH)} linkers. Furthermore, the catalytic oxidation of various aromatic sulfides and sulfur mustard simulant 2-chloroethyl ethyl sulfide (CEES) by compound 3 as the heterogeneous catalyst has been investigated, exhibiting high conversion and selectivity as well as good stability and recyclability.

18.
Gels ; 10(5)2024 May 19.
Article de Anglais | MEDLINE | ID: mdl-38786264

RÉSUMÉ

Emulsified meat products contain high animal fat content, and excessive intake of animal fat is not good for health, so people are paying more and more attention to reduced-fat meat products. This study investigated the impact of varying proportions of pork back-fat and/or resistant starch on the proximate composition, water and fat retention, texture properties, color, and rheology characteristic of pork batter. The results found that replacing pork back-fat with resistant starch and ice water significantly decreased the total lipid and energy contents of cooked pork batter (p < 0.05) while improving emulsion stability, cooking yield, texture, and rheology properties. Additionally, when the pork back-fat replacement ratio was no more than 50%, there was a significant increase in emulsion stability, cooking yield, hardiness, springiness, cohesiveness, chewiness, and L* and G' values (p < 0.05). Furthermore, resistant starch and ice water enhanced myosin head and tail thermal stability and increased G' value at 80 °C. However, the initial relaxation times significantly decreased (p < 0.05) and the peak ratio of P21 significantly increased from 84.62% to 94.03%, suggesting reduced fluidity of water. In conclusion, it is feasible to use resistant starch and ice water as a substitute for pork back-fat in order to produce reduced-fat pork batter with favorable gel and rheology properties.

19.
PNAS Nexus ; 3(5): pgae157, 2024 May.
Article de Anglais | MEDLINE | ID: mdl-38711812

RÉSUMÉ

Recent major investments in infrastructure in the United States and globally present a crucial opportunity to embed equity within the heart of resilient infrastructure decision-making. Yet there is a notable absence of frameworks within the engineering and scientific fields for integrating equity into planning, design, and maintenance of infrastructure. Additionally, whole-of-government approaches to infrastructure, including the Justice40 Initiative, mimic elements of process management that support exploitative rather than exploratory innovation. These and other policies risk creating innovation traps that limit analytical and engineering advances necessary to prioritize equity in decision-making, identification and disruption of mechanisms that cause or contribute to inequities, and remediation of historic harms. Here, we propose a three-tiered framework toward equitable and resilient infrastructure through restorative justice, incremental policy innovation, and exploratory research innovation. This framework aims to ensure equitable access and benefits of infrastructure, minimize risk disparities, and embrace restorative justice to repair historical and systemic inequities. We outline incremental policy innovation and exploratory research action items to address and mitigate risk disparities, emphasizing the need for community-engaged research and the development of equity metrics. Among other action items, we recommend a certification system-referred to as Social, Environmental, and Economic Development (SEED)-to train infrastructure engineers and planners and ensure attentiveness to gaps that exist within and dynamically interact across each tier of the proposed framework. Through the framework and proposed actions, we advocate for a transformative vision for equitable infrastructure that emphasizes the interconnectedness of social, environmental, and technical dimensions in infrastructure planning, design, and maintenance.

20.
NPJ Sci Food ; 8(1): 25, 2024 May 03.
Article de Anglais | MEDLINE | ID: mdl-38702314

RÉSUMÉ

Cultivated meat (CM) offers a sustainable and ethical alternative to conventional animal agriculture, involving cell maturation in a controlled environment. To emulate the structural complexity of traditional meat, the development of animal-free and edible scaffolds is crucial, providing vital physical and biological support during tissue development. The aligned vascular bundles of the decellularised asparagus scaffold were selected to facilitate the attachment and alignment of murine myoblasts (C2C12) and porcine adipose-derived mesenchymal stem cells (pADMSCs). Muscle differentiation was assessed through immunofluorescence staining with muscle markers, including Myosin heavy chain (MHC), Myogenin (MYOG), and Desmin. The metabolic activity of Creatine Kinase in C2C12 differentiated cells significantly increased compared to proliferated cells. Quantitative PCR analysis revealed a significant increase in Myosin Heavy Polypeptide 1 (MYH1) and MYOG expression compared to Day 0. These results highlight the application of decellularised plant scaffold (DPS) as a promising, edible material conducive to cell attachment, proliferation, and differentiation into muscle tissue. To create a CM prototype with biological mimicry, pADMSC-derived muscle and fat cells were also co-cultured on the same scaffold. The co-culture was confirmed through immunofluorescence staining of muscle markers and LipidTOX staining, revealing distinct muscle fibres and adipocytes containing lipid droplets respectively. Texture profile analysis conducted on uncooked CM prototypes and pork loin showed no significant differences in textural values. However, the pan-fried CM prototype differed significantly in hardness and chewiness compared to pork loin. Understanding the scaffolds' textural profile enhances our insight into the potential sensory attributes of CM products. DPS shows potential for advancing CM biomanufacturing.

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