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1.
Sci Rep ; 14(1): 15205, 2024 07 02.
Artículo en Inglés | MEDLINE | ID: mdl-38956306

RESUMEN

Pan-Immune-Inflammation Value (PIV) has recently received more attention as a novel indicator of inflammation. We aimed to evaluate the association between PIV and prognosis in septic patients. Data were extracted from the Medical Information Mart for Intensive Care IV database. The primary and secondary outcomes were 28-day and 90-day mortality. The association between PIV and outcomes was assessed by Kaplan-Meier curves, Cox regression analysis, restricted cubic spline curves and subgroup analysis. A total of 11,331 septic patients were included. Kaplan-Meier curves showed that septic patients with higher PIV had lower 28-day survival rate. In multivariable Cox regression analysis, log2-PIV was positively associated with the risk of 28-day mortality [HR (95% CI) 1.06 (1.03, 1.09), P < 0.001]. The relationship between log2-PIV and 28-day mortality was non-linear with a predicted inflection point at 8. To the right of the inflection point, high log2-PIV was associated with an increased 28-day mortality risk [HR (95% CI) 1.13 (1.09, 1.18), P < 0.001]. However, to the left of this point, this association was non-significant [HR (95% CI) 1.01 (0.94, 1.08), P = 0.791]. Similar results were found for 90-day mortality. Our study showed a non-linear relationship between PIV and 28-day and 90-day mortality risk in septic patients.


Asunto(s)
Sepsis , Humanos , Sepsis/mortalidad , Masculino , Femenino , Estudios Retrospectivos , Persona de Mediana Edad , Anciano , Pronóstico , Inflamación/mortalidad , Estimación de Kaplan-Meier , Biomarcadores , Unidades de Cuidados Intensivos , Modelos de Riesgos Proporcionales
2.
Food Funct ; 2024 Jul 05.
Artículo en Inglés | MEDLINE | ID: mdl-38967039

RESUMEN

Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized primarily by cognitive impairment. Recent investigations have highlighted the potential of nutritional interventions that target the gut-brain axis, such as probiotics and prebiotics, in forestalling the onset of AD. In this study, whole-genome sequencing was employed to identify xylan as the optimal carbon source for the tryptophan metabolism regulating probiotic Clostridium sporogenes (C. sporogenes). Subsequent in vivo studies demonstrated that administration of a synbiotic formulation comprising C. sporogenes (1 × 1010 CFU per day) and xylan (1%, w/w) over a duration of 30 days markedly enhanced cognitive performance and spatial memory faculties in the 5xFAD transgenic AD mouse model. The synbiotic treatment significantly reduced amyloid-ß (Aß) accumulation in the cortex and hippocampus of the brain. Importantly, synbiotic therapy substantially restored the synaptic ultrastructure in AD mice and suppressed neuroinflammatory responses. Moreover, the intervention escalated levels of the microbial metabolite indole-3-propionic acid (IPA) and augmented the relative prevalence of IPA-synthesizing bacteria, Lachnospira and Clostridium, while reducing the dominant bacteria in AD, such as Aquabacterium, Corynebacterium, and Romboutsia. Notably, synbiotic treatment also prevented the disruption of gut barrier integrity. Correlation analysis indicated a strong positive association between gut microbiota-generated IPA levels and behavioral changes. In conclusion, this study demonstrates that synbiotic supplementation significantly improves cognitive and intellectual deficits in 5xFAD mice, which could be partly attributed to enhanced IPA production by gut microbiota. These findings provide a theoretical basis for considering synbiotic therapy as a novel microbiota-targeted approach for the treatment of metabolic and neurodegenerative diseases.

3.
Vet Res ; 55(1): 82, 2024 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-38937820

RESUMEN

Respiratory diseases constitute a major health problem for ruminants, resulting in considerable economic losses throughout the world. Parainfluenza type 3 virus (PIV3) is one of the most important respiratory pathogens of ruminants. The pathogenicity and phylogenetic analyses of PIV3 virus have been reported in sheep and goats. However, there are no recent studies of the vaccination of sheep or goats against PIV3. Here, we developed a purified inactivated ovine parainfluenza virus type 3 (OPIV3) vaccine candidate. In addition, we immunized sheep with the inactivated OPIV3 vaccine and evaluated the immune response and pathological outcomes associated with OPIV3 TX01 infection. The vaccinated sheep demonstrated no obvious symptoms of respiratory tract infection, and there were no gross lesions or pathological changes in the lungs. The average body weight gain significantly differed between the vaccinated group and the control group (P < 0.01). The serum neutralization antibody levels rapidly increased in sheep post-vaccination and post-challenge with OPIV3. Furthermore, viral shedding in nasal swabs and viral loads in the lungs were reduced. The results of this study suggest that vaccination with this candidate vaccine induces the production of neutralizing antibodies and provides significant protection against OPIV3 infection. These results may be helpful for further studies on prevention and control strategies for OPIV3 infections.


Asunto(s)
Infecciones por Respirovirus , Enfermedades de las Ovejas , Vacunas de Productos Inactivados , Vacunas Virales , Animales , Ovinos , Infecciones por Respirovirus/veterinaria , Infecciones por Respirovirus/prevención & control , Infecciones por Respirovirus/virología , Infecciones por Respirovirus/inmunología , Vacunas de Productos Inactivados/inmunología , Enfermedades de las Ovejas/prevención & control , Enfermedades de las Ovejas/virología , Enfermedades de las Ovejas/inmunología , Vacunas Virales/inmunología , Respirovirus/inmunología , Inmunogenicidad Vacunal , Vacunación/veterinaria
4.
Artículo en Inglés | MEDLINE | ID: mdl-38917294

RESUMEN

We propose a new method for computing smooth and integrable cross fields on 2D and 3D surfaces. We first compute smooth cross fields by minimizing the Dirichlet energy. Unlike the existing optimization based approaches, our method determines the singularity configuration, i.e., the number of singularities, their locations and indices, via iteratively adjusting singularities. The singularities can move, merge and split, as like charges repel and unlike charges attract. Once all singularities stop moving, we obtain a cross field with (locally) lowest Dirichlet energy. In simply connected domains, such a cross field is guaranteed to be integrable. However, this property does not hold in multiply connected domains. To make a smooth cross field integrable, we construct a vector field c, which characterizes how far the cross field is away from a curl-free field. Then we optimize the locations of singularities by moving them along the field lines of c. Our method is fundamentally different from the existing integer programming-based approaches, since it does not require any special numerical solver. It is fully automatic and also has a parameter to control the number of singularities. Our method is well suited for smooth models in which exact boundary alignment and sparse hard directional constraints are desired, and can guide seamless conformal parameterization and T-junction-free quadrangulation. We will make the source code publicly available.

5.
Proc Natl Acad Sci U S A ; 121(25): e2316615121, 2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38861602

RESUMEN

Many cancer-driving protein targets remain undruggable due to a lack of binding molecular scaffolds. In this regard, octahedral metal complexes with unique and versatile three-dimensional structures have rarely been explored as inhibitors of undruggable protein targets. Here, we describe antitumor iridium(III) pyridinium-N-heterocyclic carbene complex 1a, which profoundly reduces the viability of lung and breast cancer cells as well as cancer patient-derived organoids at low micromolar concentrations. Compound 1a effectively inhibits the growth of non-small-cell lung cancer and triple-negative breast cancer xenograft tumors, impedes the metastatic spread of breast cancer cells, and can be modified into an antibody-drug conjugate payload to achieve precise tumor delivery in mice. Identified by thermal proteome profiling, an important molecular target of 1a in cellulo is Girdin, a multifunctional adaptor protein that is overexpressed in cancer cells and unequivocally serves as a signaling hub for multiple pivotal oncogenic pathways. However, specific small-molecule inhibitors of Girdin have not yet been developed. Notably, 1a exhibits high binding affinity to Girdin with a Kd of 1.3 µM and targets the Girdin-linked EGFR/AKT/mTOR/STAT3 cancer-driving pathway, inhibiting cancer cell proliferation and metastatic activity. Our study reveals a potent Girdin-targeting anticancer compound and demonstrates that octahedral metal complexes constitute an untapped library of small-molecule inhibitors that can fit into the ligand-binding pockets of key oncoproteins.


Asunto(s)
Antineoplásicos , Iridio , Metano , Animales , Humanos , Ratones , Antineoplásicos/farmacología , Antineoplásicos/química , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/patología , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Complejos de Coordinación/farmacología , Complejos de Coordinación/química , Iridio/química , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/secundario , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patología , Metano/análogos & derivados , Metano/química , Metano/farmacología , Proteínas de Microfilamentos/metabolismo , Metástasis de la Neoplasia , Neoplasias de la Mama Triple Negativas/tratamiento farmacológico , Neoplasias de la Mama Triple Negativas/patología , Neoplasias de la Mama Triple Negativas/metabolismo , Ensayos Antitumor por Modelo de Xenoinjerto , Masculino
6.
Artículo en Inglés | MEDLINE | ID: mdl-38870001

RESUMEN

Learning universal representations of 3-D point clouds is essential for reducing the need for manual annotation of large-scale and irregular point cloud datasets. The current modus operandi for representative learning is self-supervised learning, which has shown great potential for improving point cloud understanding. Nevertheless, it remains an open problem how to employ auto-encoding for learning universal 3-D representations of irregularly structured point clouds, as previous methods focus on either global shapes or local geometries. To this end, we present a cascaded self-supervised point cloud representation learning framework, dubbed Curriculumformer, aiming to tame curriculum pre-training for enhanced point cloud understanding. Our main idea lies in devising a progressive pre-training strategy, which trains the Transformer in an easy-to-hard manner. Specifically, we first pre-train the Transformer using an upsampling strategy, which allows it to learn global information. Then, we follow up with a completion strategy, which enables the Transformer to gain insight into local geometries. Finally, we propose a Multi-Modal Multi-Modality Contrastive Learning (M4CL) strategy to enhance the ability of representation learning by enriching the Transformer with semantic information. In this way, the pre-trained Transformer can be easily transferred to a wide range of downstream applications. We demonstrate the superior performance of Curriculumformer on various discriminant and generative tasks, outperforming state-of-the-art methods. Moreover, Curriculumformer can also be integrated into other off-the-shelf methods to promote their performance. Our code is available at https://github.com/Fayeben/Curriculumformer.

7.
J Hazard Mater ; 475: 134847, 2024 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-38885583

RESUMEN

Herein, we developed a technique for loading nanopesticides onto Metal-Organic Frameworks (MOFs) to control Spodoptera litura. The average short-axis length of the synthesized carrier emamectin benzoate@PCN-222 @hyaluronic acid (EB@PCN-222 @HA) was ∼40 nm, with an average long-axis length of ∼80 nm. This enabled the manipulation of its size, contact angle, and surface tension on the surface of leaves. Pesticide-loading capacity, determined via thermogravimetric analysis, was measured at ∼16 %. To ensure accurate pesticide release in the alkaline intestine of Spodoptera litura, EB@PCN-222 @HA was engineered to decompose under alkaline conditions. In addition, the carrier delayed the degradation rate of EB, enhancing EB's stability. Loading Nile red onto PCN-222 @HA revealed potential entry into the insect body through feeding, which was supported by bioassay experiments. Results demonstrated the sustained-release performance of EB@PCN-222 @HA, extending its effective duration. The impact of different carrier concentrations on root length, stem length, fresh weight, and germination rate of pakchoi and tomato were assessed. Promisingly, the carrier exhibited a growth-promoting effect on the fresh weight of both the crops. Furthermore, cytotoxicity experiments confirmed its safety for humans. In cytotoxicity assays, PCN-222 @HA showed minimal toxicity at concentrations up to 100 mg/L, with cell survival rates above 80 %. Notably, the EB@PCN-222 @HA complex demonstrated reduced cytotoxicity compared to EB alone, supporting its safety for human applications. This study presents a safe and effective approach for pest control using controlled-release pesticides with extended effective durations.


Asunto(s)
Ivermectina , Estructuras Metalorgánicas , Spodoptera , Ivermectina/análogos & derivados , Ivermectina/toxicidad , Ivermectina/química , Estructuras Metalorgánicas/química , Estructuras Metalorgánicas/toxicidad , Animales , Concentración de Iones de Hidrógeno , Spodoptera/efectos de los fármacos , Insecticidas/toxicidad , Insecticidas/química , Composición de Medicamentos , Ácido Hialurónico/química , Ácido Hialurónico/toxicidad , Solanum lycopersicum
8.
J Cell Mol Med ; 28(12): e18449, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38924214

RESUMEN

Mitochondrial dynamics has emerged as an important target for neuronal protection after cerebral ischaemia/reperfusion. Therefore, the aim of this study was to investigate the mechanism by which ARMC10 regulation of mitochondrial dynamics affects mitochondrial function involved in ischaemic stroke (IS). Mitochondrial morphology was detected by laser scanning confocal microscopy (LSCM), and mitochondrial ultrastructural alterations were detected by electron microscopy. The expression of mitochondrial dynamics-related genes Drp1, Mfn1, Mfn2, Fis1, OPA1 and ARMC10 and downstream target genes c-Myc, CyclinD1 and AXIN2 was detected by RT-qPCR. Western blot was used to detect the protein expression of ß-catenin, GSK-3ß, p-GSK-3ß, Bcl-2 and Bax. DCFH-DA fluorescent probe was to detect the effect of ARMC10 on mitochondrial ROS level, Annexin V-FITC fluorescent probe was to detect the effect of ARMC10 on apoptosis, and ATP assay kit was to detect the effect of ARMC10 on ATP production. Mitochondrial dynamics was dysregulated in clinical IS samples and in the OGD/R cell model, and the relative expression of ARMC10 gene was significantly decreased in IS group (p < 0.05). Knockdown and overexpression of ARMC10 could affect mitochondrial dynamics, mitochondrial function and neuronal apoptosis. Agonist and inhibitor affected mitochondrial function and neuronal apoptosis by targeting Wnt/ß-Catenin signal pathway. In the OGD/R model, ARMC10 affected mitochondrial function and neuronal apoptosis through the mechanism that regulates Wnt/ß-catenin signalling pathway. ARMC10 regulates mitochondrial dynamics and protects mitochondrial function by activating Wnt/ß-catenin signalling pathway, to exert neuroprotective effects.


Asunto(s)
Apoptosis , Proteínas del Dominio Armadillo , Accidente Cerebrovascular Isquémico , Mitocondrias , Dinámicas Mitocondriales , Vía de Señalización Wnt , Humanos , Proteínas del Dominio Armadillo/metabolismo , Proteínas del Dominio Armadillo/genética , beta Catenina/metabolismo , beta Catenina/genética , Isquemia Encefálica/metabolismo , Isquemia Encefálica/genética , Isquemia Encefálica/patología , Accidente Cerebrovascular Isquémico/metabolismo , Accidente Cerebrovascular Isquémico/genética , Accidente Cerebrovascular Isquémico/patología , Mitocondrias/metabolismo , Especies Reactivas de Oxígeno/metabolismo
9.
Biochem Biophys Res Commun ; 725: 150272, 2024 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-38901224

RESUMEN

Ketamine, an N-methyl-d-aspartate (NMDA) receptor antagonist, induces deficits in cognition and information processing following chronic abuse. Adolescent ketamine misuse represents a significant global public health issue; however, the neurodevelopmental mechanisms underlying this phenomenon remain largely elusive. This study investigated the long-term effects of sub-chronic ketamine (Ket) administration on the medial prefrontal cortex (mPFC) and associated behaviors. In this study, Ket administration during early adolescence displayed a reduced density of excitatory synapses on parvalbumin (PV) neurons persisting into adulthood. However, the synaptic development of excitatory pyramidal neurons was not affected by ketamine administration. Furthermore, the adult Ket group exhibited hyperexcitability and impaired socialization and working memory compared to the saline (Sal) administration group. These results strongly suggest that sub-chronic ketamine administration during adolescence results in functional deficits that persist into adulthood. Bioinformatic analysis indicated that the gene co-expression module1 (M1) decreased expression after ketamine exposure, which is crucial for synapse development in inhibitory neurons during adolescence. Collectively, these findings demonstrate that sub-chronic ketamine administration irreversibly impairs synaptic development, offering insights into potential new therapeutic strategies.


Asunto(s)
Neuronas GABAérgicas , Interneuronas , Ketamina , Parvalbúminas , Corteza Prefrontal , Sinapsis , Animales , Ketamina/farmacología , Ketamina/administración & dosificación , Corteza Prefrontal/efectos de los fármacos , Corteza Prefrontal/metabolismo , Parvalbúminas/metabolismo , Sinapsis/efectos de los fármacos , Sinapsis/metabolismo , Masculino , Interneuronas/efectos de los fármacos , Interneuronas/metabolismo , Ratones , Neuronas GABAérgicas/efectos de los fármacos , Neuronas GABAérgicas/metabolismo , Ratones Endogámicos C57BL , Antagonistas de Aminoácidos Excitadores/farmacología
10.
Diabetes Obes Metab ; 2024 Jun 03.
Artículo en Inglés | MEDLINE | ID: mdl-38826105

RESUMEN

AIM: To assess the differential association of risk factors with severe and non-severe hypoglycaemia. MATERIALS AND METHODS: The Hypoglycaemia Assessment Tool study evaluated the risk of hypoglycaemia over a 4-week period in patients with type 1 diabetes (T1D) and type 2 diabetes (T2D) on insulin in 24 countries. Negative binomial regressions were applied to examine the associations of several risk factors with severe and non-severe hypoglycaemia. RESULTS: The median age was 41 years in 5949 patients with T1D and 62 years in 12 914 patients with T2D. The 4-week rates of non-severe hypoglycaemic were 5.57 and 1.40 episodes per person in T1D and T2D, respectively; the corresponding rates for severe hypoglycaemia were 0.94 and 0.30. The excess risk was 42% higher for severe than non-severe hypoglycaemia in females versus males with T2D; 27% higher in patients with T2D with versus without a continuous glucose monitoring (CGM); and 47% lower in patients with T1D with versus without an insulin pump. The excess risk also differed across geographical areas and was marginally lower for severe than non-severe hypoglycaemia for higher values of HbA1c in patients with T2D. Associations with severity of hypoglycaemia were not different for age, diabetes and insulin therapy duration, previous hypoglycaemic episodes and insulin regimen. CONCLUSIONS: The risk of severe versus non-severe hypoglycaemia differs in patients with T1D and T2D; sex, the use of a CGM and insulin pump, and geographical areas were differently associated with one type of hypoglycaemia than the other.

11.
Artículo en Inglés | MEDLINE | ID: mdl-38843431

RESUMEN

Background: Diarrheal irritable bowel syndrome is a common functional intestinal disease in gastroenterology that can affect approximately 9% of children worldwide, and more than half of all affected children have abdominal pain into adulthood. Research has shown that scientific and effective nursing can play an important role in improving the condition and prognosis of diarrheal irritable bowel syndrome in children. Objective: To explore the effect of high-quality nursing intervention on clinical efficacy and prognosis of diarrheal irritable bowel syndrome in children. Design: This was a retrospective study. Setting: This study was performed in the department of Fourth Department of Pediatrics, Ningbo Women & Children's Hospital. Participants: A total of 60 children with diarrheal irritable bowel syndrome admitted to the Pediatric Gastroenterology Department of our hospital from August 2017 to August 2019 were enrolled. Interventions: At the same time as symptomatic treatment, high-quality nursing intervention was implemented, including cognitive intervention, psychological intervention, dietary guidance, life coaching, and medication guidance. Primary Outcome Measures: (1) clinical efficacy (2) clinical symptom points (3) symptom relief time (4) incidence of adverse reactions (5) negative emotions (6) treatment compliance and (7) nursing satisfaction of family members. All theses primary outcome measures could indicate the impacts of high-quality nursing intervention on the overall treatment and prognosis of diarrheal irritable bowel syndrome in children. Results: The total effective rate was 98.33%. The scores of abdominal distension, abdominal pain, and diarrhea after treatment were significantly lower than those before treatment (P < .05). The anxiety and depression scores of children were lower after treatment than before treatment (P < .05). After treatment, the antipyretic time, antidiarrheal time, and correct dehydration time were (1.44±0.28) d, (1.46±0.33) d and (1.38±0.31) d. The treatment compliance and nursing satisfaction of the family members of the children was 100.00%, and the satisfaction score was 94.60±3.28 points. There were no obvious adverse reactions. Conclusion: High-quality nursing intervention combined with treatment of children with diarrheal irritable bowel syndrome can effectively improve clinical treatment effect, improve clinical symptoms, improve children's negative emotions and promote children's treatment compliance and nursing satisfaction of families, and have no obvious adverse reactions, which is worthy of clinical promotion. Our study provides a clinical reference for the nursing of children with diarrheal irritable bowel syndrome.

12.
Endocr Pract ; 2024 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-38876178

RESUMEN

OBJECTIVE: Continuous glucose monitoring (CGM) may have benefits in achieving glycemic control in critically ill patients. The aim of this study was to assess the accuracy of the Freestyle Libre H (professional version of the Libre Pro). in patients with acute respiratory failure (ARF) in the intensive care unit (ICU). METHODS: 52 adult patients with ARF were selected. The performance of CGM was evaluated using arterial blood glucose (aBG) and point-of-care (POC) glucose as reference values. Numerical accuracy was evaluated by the mean absolute relative difference (MARD), Bland-Altman analysis, and %15/15(the percentage of CGM values within 15 mg/dL or 15% of reference values <100 mg/dL or >100mg/dL, respectively), %20/20 and %30/30; Clinical accuracy was assessed by Clarke error grid analysis. RESULTS: 519 and 1504 pairs of aBG/CGM and POC/CGM glucose values were analyzed. The MARD values were 13.8% and 14.7%, respectively. The mean deviation of the Bland‒Altman analysis was 0.82 mmol/L and 0.81 mmol/L. %15/15, %20/20 and %30/30 of aBG values were 62.6%, 75.5%, and 92.4%, respectively; %15/15, %20/20 and %30/30 of POC values were 57.1%, 72.9%, and 88.7%, respectively. The Clarke error grid analysis showed that 97.8% and 99.3% of the values located in the (A+B) zone. Additionally, accuracy of CGM is not affected by general patient factors. CONCLUSION: This study demonstrated that the accuracy of CGM in patients with ARF is lower than that in most outpatients, and it is not affected by general patient factors. Whether CGM is beneficial to glucose management in ICU needs further evaluation.

13.
Biochim Biophys Acta Mol Basis Dis ; 1870(7): 167304, 2024 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-38878830

RESUMEN

Pancreatic cancer (PC) responds weakly to conventional immunotherapy. RNA N6-methyladenosine (m6A) modification has an essential role in the immune response, while its potential role in PC tumor microenvironment (TME) immune cell infiltration remains unknown. In this study, we thoroughly assessed the m6A modification patterns of 472 PC samples using 19 m6A regulators, and we systematically correlated these modification patterns with TME immune cell infiltration characteristics. We also created the m6Ascore and evaluated the m6A modification patterns of individual tumors, identified three different m6A modification patterns, and explored the role of the important m6A "writer" RBM15 in the regulation of macrophage function in PC. Two independent PC cohorts confirmed that patients with higher m6Ascore showed significant survival benefit. We verified that knockdown of RBM15 has the ability to inhibit PC growth and to promote macrophage infiltration and enhance phagocytosis of PC cells by macrophages. In conclusion, m6A modifications play a non-negligible role in the formation of TME diversity and complexity in PC. We reveal that inhibition of RBM15 suppresses PC development and modulates macrophage phagocytosis, and provide a more effective immunotherapeutic strategy for PC.

14.
Molecules ; 29(11)2024 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-38893321

RESUMEN

Owing to the important role of and increasing demand for lithium resources, lithium extraction is crucial. The use of molecular extractants is a promising strategy for selective lithium recovery, in which the interaction between lithium and the designed extractant can be manipulated at the molecular level. Herein, we demonstrate that anion receptors of tripodal hexaureas can selectively extract Li2SO4 solids into water containing DMSO (0.8% water) compared to other alkali metal sulfates. The hexaurea receptor with terminal hexyl chains displays the best Li+ extraction selectivity at 2-fold over Na+ and 12.5-fold over K+. The driving force underpinning selective lithium extraction is due to the combined interactions of Li+-SO42- electrostatics and the ion-dipole interaction of the lithium-receptor (carbonyl groups and N atoms); the latter was found to be cation size dependent, as supported by computational calculations. This work indicates that anion binding receptors could drive selective cation extraction, thus providing new insights into the design of receptors for ion recognition and separation.

15.
Front Pharmacol ; 15: 1388903, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38895633

RESUMEN

Acute myeloid leukemia (AML) is a heterogeneous hematological malignancy with historically high mortality rates. The treatment strategies for AML is still internationally based on anthracyclines and cytarabine, which remained unchanged for decades. With the rapid advance on sequencing technology, molecular targets of leukemogenesis and disease progression related to epigenetics are constantly being discovered, which are important for the prognosis and treatment of AML. Traditional Chinese medicine (TCM) is characterized by novel pharmacological mechanisms, low toxicity and limited side effects. Several biologically active ingredients of TCM are effective against AML. This review focuses on bioactive compounds in TCM targeting epigenetic mechanisms to address the complexities and heterogeneity of AML.

16.
Talanta ; 277: 126437, 2024 Jun 17.
Artículo en Inglés | MEDLINE | ID: mdl-38901194

RESUMEN

The Papaya ringspot virus (PRSV)-resistant genetically modified (GM) papaya 'Huanong No.1' has been certified as safe for consumption and widely planted in China for about 18 years. To protect consumers' rights and facilitate government supervision and monitoring, it is necessary to establish a simple, rapid, and specific detection method for 'Huanong No.1'. Herein, we developed a platform based on recombinase polymerase amplification (RPA) coupled with CRISPR-Cas12a for the detection of 'Huanong No.1'. The RPA-CRISPR-Cas12a platform was found to have high specificity, with amplification signals only present in 'Huanong No.1'. Additionally, the platform was highly sensitive, with a limit of detection (LOD) of approximately 20 copies. The detection process was fast and could be completed in less than 1 h. This novel platform enables the rapid on-site visualization detection of 'Huanong No.1', eliminating dependence on laboratory conditions and specialized instruments, and can serve as a technical reference for the rapid detection of other GM plants.

17.
Artículo en Inglés | MEDLINE | ID: mdl-38842766

RESUMEN

BACKGROUND: Group A streptococcal(GAS) meningitis is a severe disease with a high case fatality rate. In the era of increasing GAS meningitis, our understanding about this disease is limited. PURPOSE: To gain a better understanding about GAS meningitis. METHODS: Five new cases with GAS meningitis were reported. GAS meningitis related literatures were searched for systematic review in PUBMED and EMBASE. Case reports and case series on paediatric cases were included. Information on demographics, risk factors, symptoms, treatments, outcomes, and emm types of GAS was summarized. RESULTS: Totally 263 cases were included. Among 100 individuals, 9.9% (8/81) had prior varicella, 11.1% (9/81) had anatomical factors, and 53.2% (42/79) had extracranial infections. Soft tissue infections were common among infants (10/29, 34.5%), while ear/sinus infections were more prevalent in children ≥ 3 years (21/42, 50.0%). The overall case fatality rate (CFR) was 16.2% (12/74). High risk of death was found in patients with shock or systemic complications, young children(< 3 years) and cases related to hematogenic spread. The predominate cause of death was shock(6/8). Among the 163 patients included in case series studies, ear/sinus infections ranged from 21.4 to 62.5%, while STSS/shock ranged from 12.5 to 35.7%, and the CFR ranged from 5.9 to 42.9%. CONCLUSIONS: A history of varicella, soft tissue infections, parameningeal infections and CSF leaks are important clinical clues to GAS in children with meningitis. Young children and hematogenic spread related cases need to be closely monitored for shock due to the high risk of death.

18.
BMC Psychiatry ; 24(1): 412, 2024 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-38834952

RESUMEN

BACKGROUND: The effect of childhood trauma on Internet gaming disorder remains unclear. In this study, we examined this association in Chinese students and explored the possible associated roles of psychological resilience and depression. METHODS: In total, 8,579 students from Hunan Province, China, provided information regarding their sociodemographic factors, history of childhood trauma, any symptoms of depression, psychological resilience, and characteristics of Internet gaming disorder for this cross-sectional study. The impact of childhood trauma on Internet gaming disorder, as well as the extent to which it was mediated by depression and moderated by psychological resilience was evaluated. RESULTS: The influence of childhood trauma on Internet gaming disorder was partially mediated by depression (B = 0.07, 95% CI [0.04, 0.05], p < 0.001), with psychological resilience acting as a mitigating factor (B = -0.002, 95% CI [13.74, 21.72], p < 0.001). Psychological resilience also moderated the association between childhood trauma and depression (B = - 0.003, 95% CI [22.17, 28.10], p < 0.001). Our moderated mediation model elucidated psychosocial mechanisms, revealing the underlying link between childhood trauma and Internet gaming disorder. It also demonstrated the partial mediating role of depression and modulating role of psychological resilience among Chinese students. CONCLUSIONS: Education and interventions, along with effective social support, should be provided to enhance students' psychological resilience and prevent childhood trauma and depression.


Asunto(s)
Experiencias Adversas de la Infancia , Depresión , Trastorno de Adicción a Internet , Análisis de Mediación , Resiliencia Psicológica , Humanos , Masculino , Trastorno de Adicción a Internet/psicología , Femenino , China , Estudios Transversales , Depresión/psicología , Experiencias Adversas de la Infancia/psicología , Adulto Joven , Adolescente , Adulto , Juegos de Video/psicología , Estudiantes/psicología
19.
BMC Cancer ; 24(1): 711, 2024 Jun 10.
Artículo en Inglés | MEDLINE | ID: mdl-38858653

RESUMEN

BACKGROUND: Inflammatory factors have increasingly become a more cost-effective prognostic indicator for gastric cancer (GC). The goal of this study was to develop a prognostic score system for gastric cancer patients based on inflammatory indicators. METHODS: Patients' baseline characteristics and anthropometric measures were used as predictors, and independently screened by multiple machine learning(ML) algorithms. We constructed risk scores to predict overall survival in the training cohort and tested risk scores in the validation. The predictors selected by the model were used in multivariate Cox regression analysis and developed a nomogram to predict the individual survival of GC patients. RESULTS: A 13-variable adaptive boost machine (ADA) model mainly comprising tumor stage and inflammation indices was selected in a wide variety of machine learning models. The ADA model performed well in predicting survival in the validation set (AUC = 0.751; 95% CI: 0.698, 0.803). Patients in the study were split into two sets - "high-risk" and "low-risk" based on 0.42, the cut-off value of the risk score. We plotted the survival curves using Kaplan-Meier analysis. CONCLUSION: The proposed model performed well in predicting the prognosis of GC patients and could help clinicians apply management strategies for better prognostic outcomes for patients.


Asunto(s)
Biomarcadores de Tumor , Nomogramas , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/mortalidad , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/patología , Femenino , Masculino , Pronóstico , China/epidemiología , Persona de Mediana Edad , Anciano , Inflamación , Aprendizaje Automático , Estudios de Cohortes , Estimación de Kaplan-Meier , Adulto , Estadificación de Neoplasias , Modelos de Riesgos Proporcionales
20.
Cereb Cortex ; 34(6)2024 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-38897816

RESUMEN

Brain structural abnormality has been observed in the prodromal and early stages of schizophrenia, but the mechanism behind it is not clear. In this study, to explore the association between cortical abnormalities, metabolite levels, inflammation levels and clinical symptoms of schizophrenia, 51 drug-naive first-episode schizophrenia (FES) patients, 51 ultra-high risk for psychosis (UHR), and 51 healthy controls (HC) were recruited. We estimated gray matter volume (GMV), cortical thickness (CT), concentrations of different metabolites, and inflammatory marks among four groups (UHR converted to psychosis [UHR-C], UHR unconverted to psychosis [UHR-NC], FES, HC). UHR-C group had more CT in the right lateral occipital cortex and the right medial orbito-frontal cortex (rMOF), while a significant reduction in CT of the right fusiform cortex was observed in FES group. UHR-C group had significantly higher concentration of IL-6, while IL-17 could significantly predict CT of the right fusiform and IL-4 and IL-17 were significant predictors of CT in the rMOF. To conclude, it is reasonable to speculate that the increased CT in UHR-C group is related to the inflammatory response, and may participate in some compensatory mechanism, but might become exhaustive with the progress of the disease due to potential neurotoxic effects.


Asunto(s)
Corteza Cerebral , Imagen por Resonancia Magnética , Esquizofrenia , Humanos , Esquizofrenia/patología , Esquizofrenia/diagnóstico por imagen , Masculino , Femenino , Adulto Joven , Corteza Cerebral/diagnóstico por imagen , Corteza Cerebral/patología , Adulto , Sustancia Gris/patología , Sustancia Gris/diagnóstico por imagen , Adolescente
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