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1.
J Cardiothorac Surg ; 19(1): 570, 2024 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-39354611

RESUMEN

OBJECTIVES: To evaluate the long-term angiographic patency of saphenous vein grafts (SVG) harvested using the no-touch technique compared to the conventional technique. METHODS: This was a single-center, retrospective, cohort study. The inclusion criteria were individuals who underwent a CABG (coronary artery bypass grafting) between January 1995 and July 2020, and who successively needed a clinically-driven angiography. The primary endpoint was long-term patency. The secondary endpoints were differences in patency based on sub-group analysis (single vs. sequential graft, divided by target vessel). RESULTS: The study included 1520 individuals (618 no-touch, 825 conventional and 77 arterial grafts). The mean clinical follow-up time was 8.4 years ± 5.5 years. The patency per patient was 70.7% in the no-touch grafts vs. 46.7% in the conventional grafts (p < 0.001, OR = 2.8). The graft patency was 75.9% in the no-touch grafts vs. 62.8% in the conventional grafts (p < 0.001, OR = 1.8). CONCLUSIONS: The no-touch vein grafts were associated with statistically significantly higher patency at long-term compared to the conventional grafts. CLINICAL TRIAL REGISTRATION: NCT04656366, 7 December 2020.


Asunto(s)
Puente de Arteria Coronaria , Vena Safena , Grado de Desobstrucción Vascular , Humanos , Femenino , Vena Safena/trasplante , Masculino , Estudios Retrospectivos , Puente de Arteria Coronaria/métodos , Anciano , Persona de Mediana Edad , Oclusión de Injerto Vascular , Angiografía Coronaria/métodos , Factores de Tiempo , Recolección de Tejidos y Órganos/métodos , Estudios de Seguimiento
2.
Int J Biol Macromol ; : 136179, 2024 Sep 30.
Artículo en Inglés | MEDLINE | ID: mdl-39357725

RESUMEN

Protein phosphatases have demonstrated considerable promise in the realm of early tumor diagnosis across various malignancies. These enzymes play a critical role in modulating the PI3K-Akt signaling pathway, which is integral to cellular processes such as proliferation, survival, and migration. When the activity of protein phosphatases becomes abnormal, it can disrupt these essential signaling pathways, potentially leading to the initiation and progression of tumors. Consequently, monitoring for abnormal expression and activity levels of protein phosphatases could serve as a vital biomarker for early cancer detection. By identifying these alterations, clinicians may be better equipped to diagnose tumors at an earlier stage, significantly improving patient outcomes.In summary, our study highlights the multifaceted and significant role of PTEN in various forms of cancer, including esophageal squamous cell carcinoma (ESCA). Further analysis showed that the expression levels of protein phosphatase and PTEN protein were significantly associated with the early diagnosis of tumors, especially in the early stage of tumors, and their detection sensitivity and specificity were high. Therefore, by detecting the expression of protein phosphatase and PTEN protein, the early diagnosis of tumor can be achieved, and the therapeutic effect and prognosis of patients can be improved.

3.
Regen Biomater ; 11: rbae112, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39323741

RESUMEN

The imbalance between osteoblasts and osteoclasts is the cause of osteoporosis. Milk-derived extracellular vesicles (mEVs), excellent drug delivery nanocarriers, can promote bone formation and inhibit bone resorption. In this study, we conjugated bone-targeting peptide (AspSerSer, DSS)6 to mEVs by click chemistry and then loaded with SRT2104, a SIRT1 (silent mating-type information regulation 2 homolog 1) agonist that was proofed to help reduce bone loss. The engineered (DSS)6-mEV-SRT2104 had the intrinsic anti-osteoporosis function of mEVs and SRT2104 to reverse the imbalance in bone homeostasis by simultaneously regulating osteogenesis and osteoclastogenesis. Furthermore, we labelled mEVs with MnB nanoparticles that can be used for the in vivo magnetic resonance imaging (MRI) visualization. The obtained nanocomposites significantly prevented bone loss in osteoporosis mice and increased bone mineral density, exhibiting superior bone accumulation under MRI. We believe the proposed (DSS)6-mEV-SRT2104/MnB provides a novel paradigm for osteoporosis treatment and monitoring.

4.
Sci Rep ; 14(1): 21608, 2024 09 16.
Artículo en Inglés | MEDLINE | ID: mdl-39294340

RESUMEN

Septic cardiomyopathy is a life-threatening heart dysfunction caused by severe infection. Considering the complexity of pathogenesis and high mortality, the identification of efficient biomarkers are needed to guide clinical practice. Based on multimicroarray analysis, this study aimed to explore the pathogenesis of septic cardiomyopathy and the related immune landscape. The results showed that septic cardiomyopathy resulted in organ dysfunction due to extreme pro- and anti-inflammatory effects. In this process, KLRG1, PRF1, BCL6, GAB2, MMP9, IL1R1, JAK3, IL6ST, and SERPINE1 were identified as the hub genes regulating the immune landscape of septic cardiomyopathy. Nine transcription factors regulated the expression of these genes: SRF, STAT1, SP1, RELA, PPARG, NFKB1, PPARA, SMAD3, and STAT3. The hub genes activated the Th17 cell differentiation pathway, JAK-STAT signaling pathway, and cytokine‒cytokine receptor interaction pathway. These pathways were mainly involved in regulating the inflammatory response, adaptive immune response, leukocyte-mediated immunity, cytokine-mediated immunity, immune effector processes, myeloid cell differentiation, and T-helper cell differentiation. These nine hub genes could be considered biomarkers for the early prediction of septic cardiomyopathy.


Asunto(s)
Cardiomiopatías , Sepsis , Cardiomiopatías/genética , Cardiomiopatías/inmunología , Humanos , Sepsis/genética , Sepsis/inmunología , Biomarcadores , Perfilación de la Expresión Génica , Redes Reguladoras de Genes , Transducción de Señal/genética , Regulación de la Expresión Génica , Masculino
5.
Photodiagnosis Photodyn Ther ; 49: 104334, 2024 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-39284400

RESUMEN

OBJECTIVE: This study aimed to explore the potential causal relationship between intraocular pressure (IOP) and myopia. METHODS: The study included 3,459 patients who underwent corneal refractive surgery at our institution between 2021 and 2023. Preoperative data on IOP, spherical equivalent (SE), axial length (AL), and corneal thickness (CCT) were collected. The association between IOP and myopia was investigated through rank correlation analysis, and causal inference was examined using Mendelian randomization (MR) methods, including MR-Egger, weighted median, mode-based estimation, simple mode, and inverse variance weighted (IVW) approaches. Utilizing summary statistics from genome-wide association studies (GWAS), IOP was considered as the exposure, with myopia as the outcome variable. IVW method was employed for the primary analysis, supplemented by sensitivity analyses. RESULTS: Cross-sectional analysis revealed a non-significant association between corrected IOP (cIOP) and myopia (r = -0.019, P = 0.12). MR analysis indicated a non-significant genetic causal relationship between cIOP and myopia under the IVW method (OR = 1.001; 95 % CI [0.999-1.003], P = 0.22), a finding corroborated in replication samples (OR = 0.98; 95 % CI [0.96-1.00], P = 0.099). CONCLUSION: This study did not find a direct causal link between IOP and the development of myopia. These findings challenge the traditional role attributed to IOP in the progression of myopia and highlight the complex, multifactorial process of myopia development. This provides a new perspective on understanding the intricate mechanisms behind myopia progression.

6.
BMC Gastroenterol ; 24(1): 326, 2024 Sep 28.
Artículo en Inglés | MEDLINE | ID: mdl-39342138

RESUMEN

BACKGROUND: Alcohol-related liver disease (ALD) and cardiovascular diseases share some common risk factors. This study aims to investigate the associations between Life's Essential 8 (LE8), a comprehensive measure of cardiovascular health (CVH), and outcomes of ALD. METHODS: Data were obtained from the 2011-2018 National Health and Nutrition Examination Survey (NHANES). Cox proportional hazards models were employed to assess the relationships between LE8 and all-cause and cardiovascular mortality in patients with ALD. Additionally, restricted cubic splines (RCS), piecewise regression, and subgroup analyses were conducted. RESULTS: A total of 5321 ALD patients were included in this study with a mean LE8 score of 67.38. During a median follow-up period of 63 months, 228 all-cause deaths were recorded. After adjusting for potential confounders, the risk of all-cause mortality in the high CVH group decreased by 53.7% compared to the low CVH group (HR = 0.463, 95%CI = 0.223-0.965). The result was robust in subgroup analyses. The RCS analysis indicated a non-linear relationship between LE8 and cardiovascular mortality, showing that the risk of cardiovascular mortality decreased with increasing LE8 scores for values below 71.12 (HR = 0.949, 95% CI = 0.915-0.984). CONCLUSIONS: LE8 score is inversely and linearly linked to all-cause mortality in ALD patients. Promoting adherence to optimal cardiovascular health may unveil additional strategies for the effective management of ALD patients and contribute to reducing their long-term mortality.


Asunto(s)
Enfermedades Cardiovasculares , Hepatopatías Alcohólicas , Encuestas Nutricionales , Humanos , Hepatopatías Alcohólicas/mortalidad , Hepatopatías Alcohólicas/complicaciones , Masculino , Femenino , Persona de Mediana Edad , Enfermedades Cardiovasculares/mortalidad , Factores de Riesgo , Modelos de Riesgos Proporcionales , Causas de Muerte , Adulto , Anciano
7.
Materials (Basel) ; 17(18)2024 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-39336414

RESUMEN

Accessible and superior electrocatalysts to overcome the sluggish oxygen evolution reaction (OER) are pivotal for sustainable and low-cost hydrogen production through electrocatalytic water splitting. The iron and nickel oxohydroxide complexes are regarded as the most promising OER electrocatalyst attributed to their inexpensive costs, easy preparation, and robust stability. In particular, the Fe-doped NiOOH is widely deemed to be superior constituents for OER in an alkaline environment. However, the facile construction of robust Fe-doped NiOOH electrocatalysts is still a great challenge. Herein, we report the facile construction of Fe-doped NiOOH on Ni(OH)2 hierarchical nanosheet arrays grown on nickel foam (FeNi@NiA) as efficient OER electrocatalysts through a facile in-situ electrochemical activation of FeNi-based Prussian blue analogues (PBA) derived from Ni(OH)2. The resultant FeNi@NiA heterostructure shows high intrinsic activity for OER due to the modulation of the overall electronic energy state and the electrical conductivity. Importantly, the electrochemical measurement revealed that FeNi@NiA exhibits a low overpotential of 240 mV at 10 mA/cm2 with a small Tafel slope of 62 mV dec-1 in 1.0 M KOH, outperforming the commercial RuO2 electrocatalysts for OER.

8.
J Hazard Mater ; 480: 135681, 2024 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-39276740

RESUMEN

Air pollutants combined with Hg, Cd, Cr, Pb, etc. in many global populated areas were studied comprehensively, while our understanding towards thallium (Tl), an extremely toxic heavy metal, remains very limited. Further, the knowledge on atmospheric emissions, distribution, and the hidden risks associated with Tl is of great scarcity. Hence, this work aims to review recent data on significant sources of ambient Tl resulting from industrial activities, including Pb/Zn/Cu/Fe sulfide ore smelting, steel-making, coal burning, and cement production that involves the use of Tl-bearing wastes. Through the examination of Tl emissions and transfer pathways in the atmosphere, it is found that Tl is present at lower than ng/m3 in aerosols and air particulates but can increase to much higher levels even at 1000 µg/m3 in atmospheric fine particulate matters near the mining and smelting industrialized zones located near populated areas. This study highlights the importance of creating a comprehensive emission inventory for Tl, particularly in developing countries where this data is currently lacking. The time has come to develop a precise national emission inventory for Tl in order to prevent and mitigate the risks associated with ambient exposure to this element. This review offers novel insights for the scientific community and policy-makers in establishing effective control and management strategies to curb hidden Tl hazards derived from industrial activities.

9.
Foods ; 13(17)2024 Aug 29.
Artículo en Inglés | MEDLINE | ID: mdl-39272504

RESUMEN

Lamb meat has become very popular with consumers in recent years due to its nutritional benefits. As a lean red meat, lamb is an important natural source of polyunsaturated and saturated fatty acids, which can be modified by adjustments in livestock feed. This study used proteomic and metabolic analyses to compare a basal ration supplemented with either mulberry silage or corn silage. Supplementation with mulberry silage led to a reduction in subcutaneous carcass fatness compared with corn silage. Additionally, changes in the proteome associated with fatty acid metabolism and oxidation resulted in decreased levels of saturated and trans fatty acids, while significantly increasing the levels of α-linolenic acid (ALA) and oleic acid and reducing linoleic acid content.

10.
Int J Mol Sci ; 25(17)2024 Aug 27.
Artículo en Inglés | MEDLINE | ID: mdl-39273227

RESUMEN

Predicting protein-ligand binding sites is an integral part of structural biology and drug design. A comprehensive understanding of these binding sites is essential for advancing drug innovation, elucidating mechanisms of biological function, and exploring the nature of disease. However, accurately identifying protein-ligand binding sites remains a challenging task. To address this, we propose PGpocket, a geometric deep learning-based framework to improve protein-ligand binding site prediction. Initially, the protein surface is converted into a point cloud, and then the geometric and chemical properties of each point are calculated. Subsequently, the point cloud graph is constructed based on the inter-point distances, and the point cloud graph neural network (GNN) is applied to extract and analyze the protein surface information to predict potential binding sites. PGpocket is trained on the scPDB dataset, and its performance is verified on two independent test sets, Coach420 and HOLO4K. The results show that PGpocket achieves a 58% success rate on the Coach420 dataset and a 56% success rate on the HOLO4K dataset. These results surpass competing algorithms, demonstrating PGpocket's advancement and practicality for protein-ligand binding site prediction.


Asunto(s)
Redes Neurales de la Computación , Proteínas , Sitios de Unión , Ligandos , Proteínas/química , Proteínas/metabolismo , Unión Proteica , Algoritmos , Aprendizaje Profundo , Bases de Datos de Proteínas
11.
Sci Total Environ ; 954: 176430, 2024 Sep 20.
Artículo en Inglés | MEDLINE | ID: mdl-39307360

RESUMEN

The "memory effect" of polychlorinated dibenzo-p-dioxin and dibenzofurans (PCDD/Fs) in wet scrubber (WS) has become a frequent negative phenomenon in waste incineration field. This work focuses on studying the major influence factors and pathways of memory effect of PCDD/Fs in WS from the aspects of PCDD/F carriers and operating conditions. The PCDD/F contents of fillings used for over three years is 0.098 ng I-TEQ/g, which performs as a stable source of PCDD/Fs for thousands of hours with PCDD/F desorption rates ranged in 0.023-0.116 pg I-TEQ/g·h at 65 °C-93 °C. On the one hand, the filling layer has been the biggest PCDD/F storage part in WS (6845.1 µg). On the other hand, the generated yellow wrapping layer in long-term operation can limit the desorption of inner PCDD/Fs. The solubility of PCDD/Fs in scrubbing water (SW) performs a positive correlation with the content of suspended substances, and the increased temperature and pH value of SW both lead to a higher toxic concentration of PCDD/Fs dissolved from the fly ash to solutions. In addition, the built mass balance of PCDD/Fs around WS suggests the incomplete SW refreshing and sludge cleaning also contribute to the memory effect of PCDD/Fs through enhancing the liquid-phase PCDD/Fs in flue gas from SW. Based on this study, three suggestions are propounded on the operation of WS. The results of this study will provide essential evidence and guidelines for optimizing operation and inhibiting the PCDD/F memory effect in WS.

12.
Chem Commun (Camb) ; 60(79): 11168-11171, 2024 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-39291768

RESUMEN

One-dimensional core-shell hollow carbon nanofibers (HCNFs) have been synthesized by coaxial electrospinning, deacetylation and carbonization, which exhibit multi-surface properties that enhance electrolyte infiltration and facilitate ion/electron transport. The nitrogen-doped hard carbon outer shell compensates for the low conductivity of amorphous carbon, and the inner core carbon supports the stability of core-shell hollow structures. This unique structure ensures the accessibility of electrons/ions during electrochemical reactions and contributes to the superior rate performance of HCNFs. Ultimately, a high retention rate of 77% of the initial capacity value (0.1 A g-1) was demonstrated at a current density of 2 A g-1. The core-shell hollow structure designed in this work greatly optimizes the sodium transport dynamics.

13.
Nat Commun ; 15(1): 8346, 2024 Sep 27.
Artículo en Inglés | MEDLINE | ID: mdl-39333142

RESUMEN

Strain engineering plays an important role in tuning electronic structure and improving catalytic capability of biocatalyst, but it is still challenging to modify the atomic-scale strain for specific enzyme-like reactions. Here, we systematically design Pt single atom (Pt1), several Pt atoms (Ptn) and atomically-resolved Pt clusters (Ptc) on PdAu biocatalysts to investigate the correlation between atomic strain and enzyme-like catalytic activity by experimental technology and in-depth Density Functional Theory calculations. It is found that Ptc on PdAu (Ptc-PA) with reasonable atomic strain upshifts the d-band center and exposes high potential surface, indicating the sufficient active sites to achieve superior biocatalytic performances. Besides, the Pd shell and Au core serve as storage layers providing abundant energetic charge carriers. The Ptc-PA exhibits a prominent peroxidase (POD)-like activity with the catalytic efficiency (Kcat/Km) of 1.50 × 109 mM-1 min-1, about four orders of magnitude higher than natural horseradish peroxidase (HRP), while catalase (CAT)-like and superoxide dismutase (SOD)-like activities of Ptc-PA are also comparable to those of natural enzymes. Biological experiments demonstrate that the detection limit of the Ptc-PA-based catalytic detection system exceeds that of visual inspection by 132-fold in clinical cancer diagnosis. Besides, Ptc-PA can reduce multi-organ acute inflammatory damage and mitigate oxidative stress disorder.


Asunto(s)
Biocatálisis , Catalasa , Oro , Platino (Metal) , Platino (Metal)/química , Oro/química , Humanos , Catalasa/química , Catalasa/metabolismo , Paladio/química , Peroxidasa de Rábano Silvestre/química , Peroxidasa de Rábano Silvestre/metabolismo , Superóxido Dismutasa/química , Superóxido Dismutasa/metabolismo , Catálisis , Teoría Funcional de la Densidad , Nanopartículas del Metal/química
14.
Front Immunol ; 15: 1438272, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39221253

RESUMEN

Rheumatoid arthritis (RA) is a chronic autoimmune disease with a complex etiology. Neutrophil extracellular traps (NETs are NETwork protein structures activated by neutrophils to induce the cleavage and release of DNA-protein complexes). Current studies have shown the critical involvement of NETs in the progression of autoimmune diseases, Neutrophils mostly gather in the inflammatory sites of patients and participate in the pathogenesis of autoimmune diseases in various ways. NETs, as the activated state of neutrophils, have attracted much attention in immune diseases. Many molecules released in NETs are targeted autoantigens in autoimmune diseases, such as histones, citrulline peptides, and myeloperoxidase. All of these suggest that NETs have a direct causal relationship between the production of autoantigens and autoimmune diseases. For RA in particular, as a disorder of the innate and adaptive immune response, the pathogenesis of RA is inseparable from the generation of RA. In this article, we investigate the emerging role of NETs in the pathogenesis of RA and suggest that NETs may be an important target for the treatment of inflammatory autoimmune diseases.


Asunto(s)
Artritis Reumatoide , Progresión de la Enfermedad , Trampas Extracelulares , Neutrófilos , Trampas Extracelulares/inmunología , Trampas Extracelulares/metabolismo , Humanos , Artritis Reumatoide/inmunología , Artritis Reumatoide/metabolismo , Artritis Reumatoide/etiología , Artritis Reumatoide/patología , Neutrófilos/inmunología , Neutrófilos/metabolismo , Animales , Autoantígenos/inmunología
15.
Br J Surg ; 111(9)2024 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-39235379

RESUMEN

BACKGROUND: With the increasing prevalence of obesity and type 2 diabetes, the availability of different treatment options remains essential. Studies comparing the outcomes of glucagon-like peptide 1 receptor agonists with those of metabolic bariatric surgery in patients with type 2 diabetes and obesity are lacking. METHODS: Using propensity score matching, based on data from several nationwide clinical registries, patients who underwent primary metabolic bariatric surgery (Roux-en-Y gastric bypass or sleeve gastrectomy) were matched with patients who received glucagon-like peptide 1 receptor agonists. Outcome measures included the occurrence of major cardiovascular events, microvascular complications, and potential side effects (alcohol/substance abuse, self-harm, and fractures). RESULTS: Over a mean follow-up of 7 years, major cardiovascular events occurred in 191 of 2039 patients (cumulative incidence 14.5%) in the surgery group compared with 247 of 2039 patients (19.6%) in the glucagon-like peptide 1 receptor agonist group (HR 0.75 (95% c.i. 0.62 to 0.91), P = 0.003). Patients in the surgery group had lower haemoglobin A1c values 5 years after treatment (mean difference 9.82 (95% c.i. 8.51 to 11.14) mmol/mol, P < 0.001) and fewer microvascular complications (retinopathy HR 0.88 (95% c.i. 0.79 to 0.99), P = 0.039; nephropathy HR 0.72 (95% c.i. 0.66 to 0.80), P < 0.001; and neuropathy or leg ulcers HR 0.82 (95% c.i. 0.74 to 0.92), P < 0.001), but a higher risk of alcohol/substance abuse (HR 2.56 (95% c.i. 1.87 to 3.50), P < 0.001), self-harm (HR 1.41 (95% c.i. 1.17 to 1.71), P < 0.001), and fractures (HR 1.86 (95% c.i. 1.11 to 3.12), P = 0.019). CONCLUSION: Compared with glucagon-like peptide 1 receptor agonist treatment, metabolic bariatric surgery is associated with superior metabolic outcomes and a lower risk of major cardiovascular events in patients with type 2 diabetes and obesity, but a higher risk of alcohol/substance abuse, self-harm, and fractures.


Asunto(s)
Cirugía Bariátrica , Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Agonistas Receptor de Péptidos Similares al Glucagón , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cirugía Bariátrica/efectos adversos , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/epidemiología , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Hipoglucemiantes/efectos adversos , Hipoglucemiantes/uso terapéutico , Obesidad/complicaciones , Obesidad Mórbida/cirugía , Obesidad Mórbida/complicaciones , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Puntaje de Propensión , Resultado del Tratamiento , Agonistas Receptor de Péptidos Similares al Glucagón/efectos adversos , Agonistas Receptor de Péptidos Similares al Glucagón/uso terapéutico
16.
Artículo en Inglés | MEDLINE | ID: mdl-39217461

RESUMEN

Esophageal cancer (EC) is one of the most fatal cancers all over the world. Sensitive detection modalities for early-stage EC and efficient treatment methods are urgently needed for the improvement of the prognosis of EC. Exosomes are small vesicles for intercellular communication, mediating many biological responses including cancer progression, which are not only promising biomarkers for diagnosis and prognosis but also therapeutic tools for EC. This review provides an overview of the relationships between exosomes and EC progression, as well as the application of exosomes in the diagnosis, prognosis, and treatment of EC. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.


Asunto(s)
Progresión de la Enfermedad , Neoplasias Esofágicas , Exosomas , Humanos , Exosomas/metabolismo , Neoplasias Esofágicas/diagnóstico , Neoplasias Esofágicas/terapia , Neoplasias Esofágicas/metabolismo , Pronóstico , Animales , Biomarcadores de Tumor/metabolismo , Portadores de Fármacos/química
17.
Adv Healthc Mater ; : e2402349, 2024 Sep 02.
Artículo en Inglés | MEDLINE | ID: mdl-39221686

RESUMEN

Amplifying oxidative stress to disrupt intracellular redox homeostasis can accelerate tumor cell death. In this work, an oxidative stress amplifier (PP@T) is prepared for enhanced tumor oxidation therapy to reduce tumor growth and metastases. The nano-amplifier has been successfully constructed by embedding MTH1 inhibitor (TH588) in the PDA-coated porphyrin metal-organic framework PCN-224. The controllable-released TH588 is demonstrated from pores can hinder MTH1-mediated damage-repairing process by preventing the hydrolysis of 8-oxo-dG, thereby amplifying oxidative stress and exacerbating the oxidative DNA damage induced by the sonodynamic therapy of PP@T under ultrasound irradiation. Furthermore, PP@T can effectively induce immunogenic cell death to trigger systemic anti-tumor immune response. When administered in combination with immune checkpoint blockade, PP@T not only impedes the progression of the primary tumor but also achieves obvious antimetastasis in breast cancer murine models, including orthotopic and artificial whole-body metastasis models. Furthermore, the nanoplatform also provides photoacoustic imaging for in vivo treatment guidance. In conclusion, by amplifying oxidative stress and reactive oxygen species sensitized immunotherapy, this image-guided nanosystem shows potential for highly specific, effective combined therapy against tumor cells with negligible side-effects to normal cells which will provide a new insight for precise tumor treatment.

18.
Oncol Lett ; 28(5): 527, 2024 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-39268163

RESUMEN

Head and neck cancer (HNC) is the sixth most common type of cancer worldwide, and head and neck squamous cell carcinoma (HNSCC) accounts for 90% of HNC cases. Furthermore, HNSCC accounts for 400,000 cancer-associated deaths worldwide each year. However, at present there is an absence of a versatile biomarker that can be used for diagnosis, prognosis evaluation and as a therapeutic target for HNSCC. In the present study, bioinformatics analysis was used to assess the relationship between hub genes and the clinical features of patients with HNSCC. The findings from the bioinformatics analysis were then verified using clinical samples and in vitro experiments. A total of 51 overlapping genes were identified from the intersection of differentially expressed genes and co-expressed genes. The top 10 hub genes were obtained from a protein-protein interaction network of overlapping genes. Among the hub genes, only secretoglobin family 1A member 1 (SCGB1A1) was significantly associated with both overall and disease-free survival. Specifically, upregulated SCGB1A1 expression levels were associated with prolonged overall and disease-free survival. Moreover, the SCGB1A1 expression levels were negatively correlated with drug sensitivity. Notably, it was demonstrated that SCGB1A1 was involved in tumor immunoreaction by affecting the infiltration of cells and checkpoint regulation of immune cells. Additionally, it was shown that SCGB1A1 regulated multiple key cancer-related signaling pathways, including extracellular matrix receptor interaction, transforming growth factor-ß and tumor metabolism signaling pathways. Based on the results of the present study, SCGB1A1 may serve as a novel biomarker for predicting the diagnosis, prognosis and therapeutic effectiveness of certain drugs in patients with HNSCC. Moreover, SCGB1A1 may serve as a potential therapeutic target for the management of HNSCC.

19.
Surgery ; 2024 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-39294006

RESUMEN

BACKGROUND: Advances in medical technology have widened the gaps and exposed disparities in medical treatments. The prevalence of surgical stabilization for rib fractures is rising despite its controversial indications for this treatment modality. In situations of equipoise, surgeons may find themselves choosing patients for surgery, revealing potential implicit biases. We hypothesize that there exists an inequity in surgical stabilization for rib fractures performed based on race. METHODS: Data were obtained from the American College of Surgeons 2013-2021 Trauma Quality Improvement Program database. Study participants were divided into race groups according to Trauma Quality Improvement Program data registry. To assess the association between race and surgical stabilization for rib fractures, a Poisson regression model was used. Potential confounding adjusted include race, age, sex, highest abbreviated injury severity score in each region, flail chest, sternum fracture, pneumothorax, hemothorax, pulmonary contusion, and comorbidities. RESULT: Black patients were more often treated at a level 1 trauma center (74%) (P < .001). Flail chest was most common in White (3.2%) and American Indian (3.4%) patients compared with other races (P = .012). After adjusting for potential confounding in the Poisson regression analyses, Black patients were 26% less likely to undergo surgical stabilization for rib fractures (adjusted incident rate ratio [95% confidence interval]: 0.74 [0.64-0.85], P < .001) and Asian were 40% less likely to undergo surgical stabilization for rib fractures (adjusted incident rate ratio [95% confidence interval]: 0.60 [0.43-0.81], P = .001) than White patients. CONCLUSION: There is a disparity in the delivery of surgical stabilization for rib fractures in patients with rib fractures. Black and Asian patients undergo surgical stabilization for rib fractures at a significantly lower rate than their White counterparts. This discrepancy in the delivery of care is concerning and requires further study.

20.
Diabetes Obes Metab ; 2024 Sep 18.
Artículo en Inglés | MEDLINE | ID: mdl-39295084

RESUMEN

AIM: To compare weight and glucometabolic outcomes of semaglutide and metabolic and bariatric surgery (MBS) for patients with type 2 diabetes and obesity. MATERIALS AND METHODS: Patients treated with either semaglutide for a duration of ≥2 years or MBS in Sweden were identified within the Scandinavian Obesity Surgery Registry and the National Diabetes Registry and matched in a 1:1-2 ratio using a propensity score matching with a generalized linear model, including age, sex, glycated haemoglobin before treatment, duration of type 2 diabetes, use of insulin, presence of comorbidities and history of cancer, with good matching results but with a remaining imbalance for glomerular filtration rate and body mass index, which were then adjusted for in the following analyses. Main outcomes were weight loss and glycaemic control. RESULTS: The study included 606 patients in the surgical group matched to 997 controls who started their treatment from 2018 until 2020. Both groups improved in weight and glucometabolic control. At 2 years after the intervention, mean glycated haemoglobin was 42.3 ± 11.18 after MBS compared with 50.7 ± 12.48 after semaglutide treatment (p < 0.001) with 382 patients (63.0%) and 139 (13.9%), respectively, reaching complete remission without other treatment than the intervention (p < 0.001). Mean total weight loss reached 26.4% ± 8.83% after MBS compared with 5.2% ± 7.87% after semaglutide (p < 0.001). CONCLUSION: Semaglutide and MBS were both associated with improvements in weight and improved glycaemic control at 2 years after the start of the intervention, but MBS was associated with better weight loss and glucometabolic control.

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