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Neuroinflammation, characterized by activation of glial cells, plays a critical role in central nervous system disorders. However, the precise mechanisms of neuroinflammation contributing to cognitive impairment remain elusive. Perineuronal nets (PNNs) are extracellular matrixes that envelop the cell bodies and dendrites of parvalbumin (PV)-positive interneurons and may be mediated by apolipoprotein E (ApoE) gene. To investigate whether disruption of PNNs associated with ApoE is implicated in neuroinflammation-induced cognitive impairment, we established a neuroinflammation model by administering lipopolysaccharides (LPS) at 0.5 mg/kg for 7 consecutive days. Cognitive function was assessed using the open field, Y-maze, and novel object recognition tests, and neural oscillations were also recorded. Furthermore, differentially expressed genes in microglia within the hippocampus were identified through single-cell RNA sequencing analysis. Overexpression of hyaluronan and proteoglycan link protein 1 (Hapln1) and ApoE knockdown were carried out through adeno-associated virus (AAV) injection to C57BL/6J mice and CX3CR1-CreERT2 mice, respectively. It was found that LPS-induced neuroinflammation impaired cognitive function by reducing PNNs and PV-positive interneurons' outputs, as well as disrupting gamma (γ) oscillations in the hippocampal CA1. Overexpression of Hapln1 was able to restore PV-positive interneurons and γ oscillations, ultimately alleviating the cognitive impairment. Mechanistically, LPS-triggered microglial activation leads to the phagocytosis of PNNs, a process influenced by ApoE. Notably, prevention of PNNs engulfment through targeting microglial ApoE in the CA1 improved cognitive impairment. Collectively, our study suggested that microglial phagocytosis of PNNs plays a key role in neuroinflammation-induced cognitive impairment, which is probably mediated by the ApoE.
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Rechargeable metal-ion batteries (MIBs) play a pivotal role in advancing the stable supply of renewable energy by efficiently storing and discharging electrical energy. In recent years, to propel the continuous advancement of MIB technology, numerous studies have concentrated on exploring and innovating electrode materials, aiming to engineer commercial batteries with high energy density, superior power density, and extended cycle life. Notably, sodium vanadates have garnered significant attention in the realm of MIBs owing to their distinctive crystal structures, abundant resource reservoirs, and exceptional electrochemical properties. This paper provides a prompt and comprehensive review of the research landscape for various sodium vanadates (such as NaxV2O5, Na1+ xV3O8, Na2V6O16·xH2O, etc.) in the domain of MIBs over the past five years. It delves into the structural characteristics, electrochemical performances, and energy storage mechanisms of these materials, while also proposing some effective strategies to augment their electrochemical capabilities. Building upon these insights and prevailing research outcomes, this review envisions the future developmental pathways of sodium vanadates for MIBs and aims to reveal the vast potential of sodium vanadates in the emerging energy storage field and provide researchers with clear insights and perspectives for developing optimal sodium vanadate electrodes.
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PURPOSE: This study aimed to evaluate the prognostic value of postnatal esophageal deviation index (EDI) measured within the first 24 h of life for predicting mortality and morbidity in neonates with left-sided congenital diaphragmatic hernia (L-CDH). METHOD: This retrospective study analyzed clinical data from 133 neonates with L-CDH admitted to Guangzhou Women and Children's Medical Center between January 2016 and January 2024. Patients were categorized into two groups based on outcomes: survivors (n = 108) and non-survivors (n = 27). Risk factors for mortality were identified using both univariate and multivariate analyses. A receiver operating characteristic (ROC) curve was utilized to evaluate the predictive value of EDI for mortality in L-CDH patients. Subsequently, patients were divided into two groups: those with an EDI> 16.1% and those with an EDI≤16.1%. The relationship between EDI and both mortality and morbidity was analyzed using Kaplan-Meier analysis, chi-square test, Fisher's exact test, and multivariate analysis. RESULTS: EDI (adjusted OR: 0.822, 95% CI 0.723-0.935; P = 0.003) was identified as the independent predictor of mortality through both univariate and multivariate logistic regression analysis. The ROC curve demonstrated that the area under the curve (AUC) for predicting the mortality was 0.854 (95%CI: 0.782-0.930) for EDI, with an optimal cut-off value of 16.125%. The cumulative mortality rate through Day 200 was higher in patients with an EDI>16.1% (Pï¼0.001). Among the 133 neonates with L-CDH, 24.8% had an EDI>16.1%. This was associated with significantly worse CDH characteristics, including a high incidence of intrathoracic stomach and a high occurrence of high-risk defect sizes (type C/D), (Pï¼0.001), as well as more severe pulmonary hypertension (Pï¼0.001). An EDI>16.1% was associated with higher mortality and a greater need for ECMO support compared to an EDI≤16.1% (Pï¼0.001). CONCLUSION: EDI within the first 24 h of life in patients with L-CDH is associated with increased mortality and the need for ECMO, particularly when EDI exceeds 16.1%. LEVEL OF EVIDENCE: III.
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Modulating the electronic structure is essential for improving the anchoring and catalytic capabilities of catalysts in lithium-sulfur batteries (LSBs). This study delves into the modulation of d-orbitals in transition metal dual-atom catalysts (DACs) supported by boron nitride and graphene (BNC) hybrid sheets for LSBs. This study reveals that the d-band center of the DACs, a key determinant of material chemical properties, is primarily determined by the electronic configuration of the dyz and dx2-y2 orbitals. Furthermore, the interaction between dz2 of transition metals and S_3 p orbitals is critical for the binding strength of LiPSs. By understanding these interactions, the functionality of DACs can be customized for optimal performance in LSBs. For example, the MnCrBNC catalyst with 10 d-electrons exhibits the optimal d-band center and demonstrates exceptional LiPSs binding capability, the lowest Li2S decomposition energy barrier, and the lowest Gibbs free energy of reaction for the rate-determining step of sulfur reduction. This study elucidates the fundamental mechanisms for designing high-performance LSB catalysts through electronic structure modulation.
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Importance: Previous studies revealed limited effectiveness of neuroprotective agents in treating acute ischemic stroke (AIS). Tongxinluo, developed from traditional Chinese medicines, has been recognized as a novel neuroprotective agent with anti-inflammatory properties that stabilize vulnerable plaques in animal models and patients with myocardial infarction. Objective: To assess the efficacy and safety of Tongxinluo in patients with acute ischemic stroke (AIS). Design, Setting, and Participants: This multicenter, open-label, double-blind, randomized clinical trial included 2007 patients with AIS and a National Institutes of Health Stroke Scale score between 4 and 22 at admission. The trial was conducted at 50 hospitals in China from March 1, 2014, to October 31, 2016. Data were analyzed from November 14, 2016, to November 16, 2017. Interventions: Eligible patients were randomized within 72 hours of symptom onset to the Tongxinluo group or the control group. Participants received 4 oral capsules of Tongxinluo or placebo, 3 times a day for 90 days. Other treatment was administrated according to guidelines. Main Outcomes and Measure: The primary outcome was a favorable functional outcome at day 90 after randomization, defined as a modified Rankin Scale (mRS) score of 0 to 1 (on a scale of 0 [no neurologic deficit, no symptoms, or completely recovered] to 6 [death]). All statistical analyses were performed in a modified intention-to-treat population, defined as all patients who underwent randomization, were given any treatment, and underwent any posttreatment assessment. Results: Among 2007 patients with AIS who were randomized, 1946 (96.5%) were included in the modified intention-to-treat analysis (973 in the Tongxinluo group and 973 in the control group, with mean [SD] age of 60.5 [9.2] years and 1342 [69.0%] male). Patients in the Tongxinluo group had a significantly higher proportion of favorable functional outcomes at day 90 compared with those in the control group (mRS score of 0-1, 640 [65.8%] vs 575 [59.1%]; odds ratio, 1.33 [95% CI, 1.11-1.60]; P = .002). The prespecified subgroup analyses indicated that, among all subgroups, additional Tongxinluo treatment had similar outcomes. Conclusions and Relevance: Among patients with ischemic stroke within 72 hours after symptom onset, those additionally receiving Tongxinluo were more likely to have a favorable functional outcome, compared with a placebo group. Further research in patients with thrombolysis and endovascular treatment are needed to explore these outcomes. Trial registration: ClinicalTrials.gov Identifier: NCT01919671.
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Medicamentos de Ervas Chinesas , AVC Isquêmico , Humanos , Medicamentos de Ervas Chinesas/uso terapêutico , Masculino , Feminino , Pessoa de Meia-Idade , AVC Isquêmico/tratamento farmacológico , Método Duplo-Cego , Idoso , Resultado do Tratamento , Fármacos Neuroprotetores/uso terapêutico , ChinaRESUMO
Astragaloside IV (AS-IV), a natural triterpenoid isolated from Astragalus membranaceus, has been used traditionally in Chinese medicine. Previous studies have highlighted its benefits against carcinoma, but its interaction with the gut microbiota and effects on adenomatous polyps are not well understood. This present study investigates the effects of AS-IV on colonic adenomatous polyp (CAP) development in high-fat-diet (HFD) fed [Formula: see text] mice. [Formula: see text] mice were fed an HFD with or without AS-IV or Naringin for 8 weeks. The study assessed CAP proliferation and employed 16S DNA-sequencing and untargeted metabolomics to explore correlations between microbiome and metabolome in CAP development. AS-IV was more effective than Naringin in reducing CAP development, inhibiting colonic proinflammatory cytokines (IL-1ß, IL-6, and TNF-α), tumor associated biomarkers (c-Myc, Cyclin D1), and Wnt/ß-catenin pathway proteins (Wnt3a, ß-catenin). AS-IV also inhibited the proliferative capabilities of human colon cancer cells (HT29, HCT116, and SW620). Multiomics analysis revealed AS-IV increased the abundance of beneficial genera such as Bifidobacterium pseudolongum and significantly modulated serum levels of certain metabolites including linoleate and 2-trans,6-trans-farnesal, which were significantly correlated with the number of CAP. Finally, the anti-adenoma efficacy of AS-IV alone was significantly suppressed post pseudoaseptic intervention in HFD-fed [Formula: see text] mice but could be reinstated following a combined with Bifidobacterium pseudolongum transplant. AS-IV attenuates CAP development in HFD-fed [Formula: see text] mice by regulating gut microbiota and metabolomics, impacting the Wnt3a/ß-catenin signaling pathway. This suggests a potential new strategy for the prevention of colorectal cancer, emphasizing the role of gut microbiota in AS-IV's antitumor effects.
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Pólipos Adenomatosos , Bifidobacterium , Microbioma Gastrointestinal , Metaboloma , Saponinas , Triterpenos , Animais , Triterpenos/farmacologia , Triterpenos/isolamento & purificação , Triterpenos/administração & dosagem , Saponinas/farmacologia , Saponinas/isolamento & purificação , Microbioma Gastrointestinal/efeitos dos fármacos , Humanos , Metaboloma/efeitos dos fármacos , Pólipos Adenomatosos/prevenção & controle , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Neoplasias do Colo/prevenção & controle , Neoplasias do Colo/microbiologia , Neoplasias do Colo/etiologia , Via de Sinalização Wnt/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Dieta Hiperlipídica/efeitos adversos , Pólipos do Colo/microbiologia , Citocinas/metabolismo , Citocinas/sangue , Modelos Animais de Doenças , FitoterapiaRESUMO
Effectively and completely eliminating residual tumor cells is the key to reducing the risk of tumor metastasis and recurrence. Designing an "ideal" nanoplatform for programmable cancer therapy has great prospects for completely eliminating residual tumor cells. Herein, an intelligent nanoplatform of disulfiram (DSF)-loaded CuS-tannic acid nanohexahedrons (denoted as "DSF-CuS@TA") with thermal- and pH-sensitive degradation, as well as near-infrared (NIR-II) phototherapeutics properties, was constructed. And then, it was employed for in situ DSF toxification activation programmable "triple attack" cancer therapy. After accumulating in the tumor, DSF-CuS@TA first releases the loaded Cu(DTC)2, and simultaneously degrades and releases Cu2+ and DSF under mildly acidic stimulation to trigger instant intratumoral Cu(DTC)2 chelation, thereby achieving the "first strike." Next, under irradiation by a NIR-II laser, light energy is converted into heat to generate NIR-II photothermal therapy, thereby achieving the second strike. Subsequently, under thermal stimulation, DSF-CuS@TA degrades further, triggering the chelation of Cu(DTC)2 for a second time to reach the third strike. As expected, in vitro and in vivo studies showed that the synergistic integration of DSF-based programmed chemotherapy and NIR-II phototherapeutics could achieve effective tumor removal. Therefore, we propose a novel type of programmed therapy against cancer by designing a nanoplatform via "nontoxicity-to-toxicity" chemical chelation transformation.
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The commercialization of lithium-sulfur (Li-S) batteries has faced challenges due to the shuttle effect of soluble intermediate polysulfides and the sluggish kinetics of sulfur redox reactions. In this study, a synergistic catalyst medium was developed as a high-performance sulfur cathode material for Li-S batteries. Termed A/R-TiO2@ Ni-N-MXene, this sulfur cathode material features an in-situ derived anatase-rutile homojunction of TiO2 nanoparticles on Ni-N dual-atom-doped MXene nanosheets. Using in-situ transmission electron microscopy (TEM) technique, we observed the growth process of the homojunction for the first time confirming that homojunctions facilitated charge transfer, while dual-atom doping offered abundant active sites for anchoring and converting soluble polysulfides. Theoretical calculations and experiments showed that these synergistic effects effectively mitigated the shuttle effect, leading to improved cycling performance of Li-S batteries. After 500 cycles at a 1C rate, Li-S batteries using A/R-TiO2@Ni-N-MXene as cathode materials exhibited stable and highly reversible capacity with a capacity decay of only 0.056 % per cycle. Even after 150 cycles at a 0.1C rate, a high-capacity retention rate of 62.8 % was achieved. Additionally, efficient sulfur utilization was observed, with 1280.76 mA h/g at 0.1C, 694.24 mA h/g at 1C, alongside a sulfur loading of 1.5-2 mg/cm2. The effective strategy based on homojunctions showcases promise for designing high-performance Li-S batteries.
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The cryopreservation and transplantation of ovarian tissue underscore its paramount importance in safeguarding reproductive capacity and ameliorating reproductive disorders. However, challenges persist in ovarian tissue cryopreservation and transplantation (OTC-T), including the risk of tissue damage and dysfunction. Consequently, there has been a compelling exploration into the realm of nanoregulators to refine and enhance these procedures. This review embarks on a meticulous examination of the intricate anatomical structure of the ovary and its microenvironment, thereby establishing a robust groundwork for the development of nanomodulators. It systematically categorizes nanoregulators and delves deeply into their functions and mechanisms, meticulously tailored for optimizing ovarian tissue cryopreservation and transplantation. Furthermore, the review imparts valuable insights into the practical applications and obstacles encountered in clinical settings associated with OTC-T. Moreover, the review advocates for the utilization of microbially derived nanomodulators as a potent therapeutic intervention in ovarian tissue cryopreservation. The progression of these approaches holds the promise of seamlessly integrating nanoregulators into OTC-T practices, thereby heralding a new era of expansive applications and auspicious prospects in this pivotal domain.
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Criopreservação , Ovário , Criopreservação/métodos , Feminino , Humanos , AnimaisRESUMO
OBJECTIVE: This study aims to investigate the prevalence of familial cerebral cavernous malformations (FCCMs) in first-degree relatives (FDRs) using familial screening, to describe the distribution of initial symptoms, lesion count on cranial MRI and pathogenic gene in patients. METHODS: Patients with multiple CCMs who enrolled from the Treatments and Outcomes of Untreated Cerebral Cavernous Malformations in China database were considered as probands and FDRs were recruited. Cranial MRI was performed to screen the CCMs lesions, and whole-exome sequencing was performed to identify CCM mutations. MRI and genetic screening were combined to diagnose FCCM in FDRs, and the results were presented as prevalence and 95% CIs. The Kaplan-Meier (KM) method was used to calculate the cumulative incidence of FCCM. RESULTS: 33 (76.74%) of the 43 families (110 FDRs) were identified as FCCM (85 FDRs). Receiver operating characteristic analysis revealed three lesions on T2-weighted imaging (T2WI) were the strong indicator for distinguishing probands with FCCM (sensitivity, 87.10%; specificity, 87.50%). Of the 85 FDRs, 31 were diagnosed with FCCM, resulting in a prevalence of 36.5% (26.2%-46.7%). In families with FCCMs, the mutation rates for CCM1, CCM2 and CCM3 were 45.45%, 21.21% and 9.09%, respectively. Furthermore, 53.13% of patients were asymptomatic, 17.19% were intracranial haemorrhage and 9.38% were epilepsy. The mean age of symptom onset analysed by KM was 46.67 (40.56-52.78) years. CONCLUSION: Based on MRI and genetic analysis, the prevalence of CCMs in the FDRs of families with FCCMs in China was 36.5%. Genetic counselling and MRI screening are recommended for FDRs in patients with more than three CCM lesions on T2WI.
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Background: There are many problems of psychological burden in patients with tumor implanted in port of intravenous infusion. However, more attention is paid to its complications in the literature, and psychological problems are seldom concerned. The purpose of this study was to explore the psychological state and needs of tumor patients after implantation of an intravenous infusion port and provide valuable references for psychological interventions. Method: A semi-structured interview was conducted with 11 patients with intravenous infusion ports. Colaizzi's 7-step analysis was used to analyze the interview data. Results: According to the primary information, four themes and nine sub-themes were extracted: (1) lack of self-worth, (2) multiple emotional experiences (guilt, doubt, worry, and gain). (3) Poor self-management and self-maintenance awareness (over-reliance on medical staff, unchanged family roles, lack of related knowledge). (4) Expectations and suggestions for the future (inner expectations, suggestions for infusion ports). Conclusion: The patient's psychological state should be carefully monitored during tube implantation, to relieve the patient's tension and anxiety and improve nursing satisfaction and patient outcomes.
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OBJECTIVE: To investigate whether Naoxueshu Oral Liquid (NXS) could promote hematoma absorption in post-craniotomy hematoma (PCH) patients. METHODS: This is an open-label, multicenter, and randomized controlled trial conducted at 9 hospitals in China. Patients aged 18-80 years with post-craniotomy supratentorial hematoma volume ranging from 10 to 30 mL or post-craniotomy infratentorial hematoma volume less than 10 mL, or intraventricular hemorrhage following cranial surgery were enrolled. They were randomly assigned at a 1:1 ratio to the NXS (10 mL thrice daily for 15 days) or control groups using a randomization code table. Standard medical care was administered in both groups. The primary outcome was the percentage reduction in hematoma volume from day 1 to day 15. The secondary outcomes included the percentage reduction in hematoma volume from day 1 to day 7, the absolute reduction in hematoma volume from day 1 to day 7 and 15, and the change in neurological function from day 1 to day 7 and 15. The safety was closely monitored throughout the study. Moreover, subgroup analysis was performed based on age, gender, history of diabetes, and etiology of intracerebral hemorrhage (ICH). RESULTS: A total of 120 patients were enrolled and randomly assigned between March 30, 2018 and April 15, 2020. One patient was lost to follow-up in the control group. Finally, there were 119 patients (60 in the NXS group and 59 in the control group) included in the analysis. In the full analysis set (FAS) analysis, the NXS group had a greater percentage reduction in hematoma volume from day 1 to day 15 than the control group [median (Q1, Q3): 85% (71%, 97%) vs. 76% (53%, 93%), P<0.05]. The secondary outcomes showed no statistical significance between two groups, either in FAS or per-protocol set (P>0.05). Furthermore, no adverse events were reported during the study. In the FAS analysis, the NXS group exhibited a higher percentage reduction in hematoma volume on day 15 in the following subgroups: male patients, patients younger than 65 years, patients without diabetes, or those with initial cranial surgery due to ICH (all P<0.05). CONCLUSIONS: The administration of NXS demonstrated the potential to promote the percentage reduction in hematoma volume from day 1 to day 15. This intervention was found to be safe and feasible. The response to NXS may be influenced by patient characteristics. (Registration No. ChiCTR1800017981).
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Craniotomia , Hematoma , Humanos , Masculino , Feminino , Hematoma/etiologia , Pessoa de Meia-Idade , Craniotomia/efeitos adversos , Idoso , Adulto , Medicamentos de Ervas Chinesas/uso terapêutico , Medicamentos de Ervas Chinesas/administração & dosagem , Medicamentos de Ervas Chinesas/efeitos adversos , Idoso de 80 Anos ou mais , Adolescente , Adulto Jovem , Administração OralRESUMO
INTRODUCTION: Medication-overuse headache (MOH) is a secondary chronic headache disorder that occurs in individuals with a pre-existing primary headache disorder, particularly migraine disorder. Obesity is often combined with chronic daily headaches and is considered a risk factor for the transformation of episodic headaches into chronic headaches. However, the association between obesity and MOH among individuals with migraine has rarely been studied. The present study explored the association between body mass index (BMI) and MOH in people living with migraine. METHODS: This cross-sectional study is a secondary analysis of data from the Survey of Fibromyalgia Comorbidity with Headache study. Migraine and MOH were diagnosed using the criteria of the International Classification of Headache Disorders, 3rd Edition. BMI (kg/m2) is calculated by dividing the weight (kg) by the square of the height (m). Multivariable logistic regression analysis was used to evaluate the association between BMI and MOH. RESULTS: A total of 2,251 individuals with migraine were included, of whom 8.7% (195/2,251) had a concomitant MOH. Multivariable logistic regression analysis, adjusted for age, sex, education level, headache duration, pain intensity, headache family history, chronic migraine, depression, anxiety, insomnia, and fibromyalgia, demonstrated there was an association between BMI (odds ratio [OR], 1.05; 95% confidence interval [CI], 1.01-1.11; p = 0.031) and MOH. The results remained when the BMI was transformed into a category. Compared to individuals with Q2 (18.5 kg/m2 ≤ BMI ≤23.9 kg/m2), those with Q4 (BMI ≥28 kg/m2) had an adjusted OR for MOH of 1.81 (95% CI, 1.04-3.17; p = 0.037). In the subgroup analyses, BMI was associated with MOH among aged more than 50 years (OR, 1.13; 95%, 1.03-1.24), less than high school (OR, 1.08; 95%, 1.01-1.15), without depression (OR, 1.06; 95%, 1.01-1.12), and without anxiety (OR, 1.06; 95%, 1.01-1.12). An association between BMI and MOH was found in a sensitivity analysis that BMI was classified into four categories according to the World Health Organization guidelines. CONCLUSION: In this cross-sectional study, BMI was associated with MOH in Chinese individuals with migraine.
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Índice de Massa Corporal , Transtornos da Cefaleia Secundários , Transtornos de Enxaqueca , Obesidade , Humanos , Estudos Transversais , Transtornos de Enxaqueca/complicações , Transtornos de Enxaqueca/epidemiologia , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/epidemiologia , Transtornos da Cefaleia Secundários/epidemiologia , Fatores de Risco , Comorbidade , Modelos LogísticosRESUMO
Hemiphragma heterophyllum Wall. is commonly used in traditional Yi herbal medicine for treating bellyache and toothache. In the current study, an unreported monoterpene glucoside, (S)-thymoquinol O-(6-O-oleuropeoyl)-ß-d-glucopyranoside (1), together with 11 known glucosides were obtained from the whole herb of H. heterophyllum. Their structures were determined based on a detailed analysis of spectroscopic data and acid hydrolysis and methanolysis reactions. Bioassay results showed that compounds 1 and 10 at 40 mg/kg exhibited significant antinociceptive activity in the acetic acid-induced writhing model, with inhibitions of 59.80% and 64.07%, respectively. Moreover, five of the isolates showed moderate anti-α-glucosidase activities with IC50 values ranging from 5.67 to 46.16 µM.
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The composition of soil organic carbon and its stability mechanism are the key to understanding the terrestrial carbon sink capacity. The stability of soil organic carbon in a karst ecosystem greatly affects the soil carbon fixation capacity. In order to understand the impact of human activities on the stability of soil organic carbon in karst areas, the karst valley area of Zhongliang Mountain in Chongqing was selected as an example, and soil samples of four typical land use modes (mixed forest, bamboo forest, grassland, and cultivated land) were collected in layers to analyze the total organic carbon (TOC) and heavy fraction organic carbon (HFOC). The distribution characteristics of light fraction organic carbon (LFOC), labile organic carbon (LOC), and recalcitrant organic carbon (ROC) were analyzed quantitatively by using a structural equation model to provide basic data for soil carbon sink assessment and soil quality protection in karst areas. The results showed that the organic carbon components under different land use patterns in karst areas had obvious surface accumulation, and the content of organic carbon components in the surface layer was 1.2 times that in the bottom layer. Except for LFOC, the content of other organic carbon components was the highest in the mixed forest, followed by that in the bamboo forest and wasteland, with the lowest in cultivated land. Mixed forest ω(TOC) content was the highest, 42.5 g·kg-1, followed by that of bamboo forest (36.6 g·kg-1) and grassland (18.7 g·kg-1), and cultivated land content was the lowest, 13.4 g·kg-1. The soil organic carbon content of cultivated land was 68.5%, 63.5%, and 28.3% lower than that of mixed forest, bamboo forest, and grassland, respectively. Mixed forest had the highest content of ω(HFOC), 21 g·kg-1, followed by those of bamboo forest (20.9 g·kg-1), grassland (18.2 g·kg-1), and cultivated land (13.5 g·kg-1). The mixed forest ω(LOC) content was the highest, 16.3 g·kg-1, followed by those of bamboo forest (14.9 g·kg-1), grassland (11.5 g·kg-1), and cultivated land (5.3 g·kg-1). Mixed forest ω (ROC) content was the highest, 25.7 g·kg-1, followed by those of bamboo forest (21.6 g·kg-1), grassland (15.9 g·kg-1), and cultivated land (10.3 g·kg-1). The bamboo forest land ω(LFOC) content was 15.9 g·kg-1, followed by those of mixed forest (13.9 g·kg-1), grassland (7.3 g·kg-1), and cultivated land (4.9 g·kg-1). The recalcitrant organic carbon index (ROCI) was used to indicate the stability of soil organic carbon. The variation range of ROCI was 33.9%-64.5%, of which the highest was mixed forest (64.5%-66.3%), and the lowest was cultivated land (33.8%-39.6%). The ROCI of mixed forest, bamboo forest, and grassland were 1.8 times, 1.6 times, and 1.4 times that of cultivated land, respectively. Karst area ω (inert organic carbon) content and ROCI showed that human agricultural activities caused the reduction in soil organic carbon content and the destruction of soil physical structure, resulting in the accelerated decomposition and turnover rate of soil organic matter. The most important factor affecting soil stability in karst areas was soil pH. Tillage activities caused soil pH to rise, reduced soil microbial activity, and were not conducive to the accumulation of the inert organic carbon and soil organic carbon pool in the soil.
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Low temperatures severely impair the performance of lithium-ion batteries, which demand powerful electrolytes with wide liquidity ranges, facilitated ion diffusion, and lower desolvation energy. The keys lie in establishing mild interactions between Li+ and solvent molecules internally, which are hard to achieve in commercial ethylene-carbonate based electrolytes. Herein, we tailor the solvation structure with low-ε solvent-dominated coordination, and unlock ethylene-carbonate via electronegativity regulation of carbonyl oxygen. The modified electrolyte exhibits high ion conductivity (1.46 mS·cm-1) at -90 °C, and remains liquid at -110 °C. Consequently, 4.5 V graphite-based pouch cells achieve ~98% capacity over 200 cycles at -10 °C without lithium dendrite. These cells also retain ~60% of their room-temperature discharge capacity at -70 °C, and miraculously retain discharge functionality even at ~-100 °C after being fully charged at 25 °C. This strategy of disrupting solvation dominance of ethylene-carbonate through molecular charge engineering, opens new avenues for advanced electrolyte design.
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BACKGROUND: Cardiac complications are related to poor prognosis after spontaneous intracerebral hemorrhage (ICH). This study aims to predict the cardiac complications arising from small intracranial hematoma at ultraearly stage. METHODS: The data of this work were derived from the Risk Stratification and Minimally Invasive Surgery in Acute ICH Patients study (ClinicalTrials.gov Identifier: NCT03862729). This work included patients with ICH but without brain herniation, as confirmed by a brain computed tomography scan within 48 hours of symptom onset. Every Patient's information recorded at the emergent department, including clinical, laboratory, electrocardiogram, and medical records, was derived from the electronic data capture. Cardiac complications were defined as the occurrence of myocardial damage, arrhythmias, and ischemic electrocardiogram changes during hospitalization. Variables associated with cardiac complications were filtrated by univariate and multivariate regression analyses. Independent risk factors were used to form the early predictive model. The restricted cubic splines were employed to investigate the nonlinear associations in a more sophisticated and scholarly manner. RESULTS: A total of 587 ICH patients were enrolled in this work, including 72 patients who suffered from cardiac complications after ICH. Out of the 78 variables, 24 were found to be statistically significant in the univariate logistic regression analysis. These significant variables were then subjected to multivariate logistic regression analysis and utilized for constructing risk models. Multivariate logistic regression analysis showed high plasma fibrinogen (FIB) level [odds ratio (OR) per standard deviation (SD) 1.327, 95% confidence intervals (CI) 1.037-1.697; P = 0. 024)] and older age (OR per SD 1.777, 95% CI 1.344-2.349; P ï¼0.001) were associated with a higher incidence of cardiac complications after ICH. High admission pulse rate (OR 0.620, 95% CI 0.451-0.853; P = 0. 003) was considered a protective factor for cardiac complications after ICH. In the restricted cubic spline regression model, FIB and cardiac complications following ICH were positively correlated and almost linearly (P for nonlinearity = 0.073). The reference point for FIB in predicting cardiac complications after ICH was 2.64 g/L. CONCLUSIONS: Emergent factors, including plasma FIB level, age, and pulse rate, might be independently associated with cardiac complications after ICH, which warrants attention in the context of treatment.
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Hemorragia Cerebral , Cardiopatias , Humanos , Hemorragia Cerebral/complicações , Fatores de Risco , Hematoma/etiologia , Hematoma/complicações , Incidência , Cardiopatias/etiologia , Cardiopatias/complicações , FibrinogênioRESUMO
Objective: To identify whether intracranial hematoma (ICH) evacuation improves the prognosis of patients with ruptured anterior communicating artery (AcomA) aneurysms concomitant with small ICHs (≥10 mL and <25 mL). Methods: Data on patients diagnosed with small ICHs secondary to ruptured AcomA aneurysms who underwent surgery in our department between January 2010 and February 2018 was retrospectively analyzed. The patients were divided into two groups based on whether the hematoma was evacuated. The modified Rankin Scale (mRS) was used to assess prognosis six months after onset. Results: The study recruited 58 patients, 19 of whom underwent aneurysm clipping and ICH evacuation. While 33 patients underwent aneurysm clipping, 6 patients underwent coiling embolism without ICH evacuation. The average ICH volume was 15.27±4.07 mL. In the hematoma-evacuated group, 13 (68.4%) patients had unfavorable outcomes (mRS scores of 4 to 6). In the non-evacuated hematoma group, 13 (33.3%) patients had unfavorable outcomes (P = 0.001), postoperative infarction occurred in 11 (57.9%) patients in the hematoma evacuation group and 9 (23.1%) patients in the other group (P = 0.009). Conclusion: ICH evacuation was associated with unfavorable outcomes and postoperative infarction in ruptured AcomA aneurysms with concomitant small hematomas (<25 mL). Aneurysm clipping or coiling without ICH evacuation may be a safe and effective choice; however, further investigation is needed.
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BACKGROUND: Headache disorders are widely prevalent and pose a considerable economic burden on individuals and society. Globally, misdiagnosis and inadequate treatment of primary headache disorders remain significant challenges, impeding the effective management of such conditions. Despite advancements in headache management over the last decade, a need for comprehensive evaluations of the status of primary headache disorders in China regarding diagnosis and preventative treatments persists. METHODS: In the present study, we analyzed the established queries in the Survey of Fibromyalgia Comorbidity with Headache (SEARCH), focusing on previous diagnoses and preventative treatment regimens for primary headache disorders. This cross-sectional study encompassed adults diagnosed with primary headache disorders who sought treatment at 23 hospitals across China between September 2020 to May 2021. RESULTS: The study comprised 2,868 participants who were systematically examined. Migraine and tension-type headaches (TTH) constituted a majority of the primary headache disorders, accounting for 74.1% (2,124/2,868) and 23.3% (668/2,868) of the participants, respectively. Medication overuse headache (MOH) affected 8.1% (231/2,868) of individuals with primary headache disorders. Over half of the individuals with primary headache disorders (56.6%, 1,624/2,868) remained undiagnosed. The previously correct diagnosis rates for migraine, TTH, TACs, and MOH were 27.3% (580/2,124), 8.1% (54/668), 23.2% (13/56), and 3.5% (8/231), respectively. The misdiagnosis of "Nervous headache" was found to be the most prevalent among individuals with migraine (9.9%, 211/2,124), TTH (10.0%, 67/668), trigeminal autonomic cephalalgias (TACs) (17.9%, 10/56), and other primary headache disorders (10.0%, 2/20) respectively. Only a minor proportion of individuals with migraine (16.5%, 77/468) and TTH (4.7%, 2/43) had received preventive medication before participating in the study. CONCLUSIONS: While there has been progress made in the rate of correct diagnosis of primary headache disorders in China compared to a decade ago, the prevalence of misdiagnosis and inadequate treatment of primary headaches remains a veritable issue. As such, focused efforts are essential to augment the diagnosis and preventive treatment measures related to primary headache disorders in the future.
Assuntos
Transtornos da Cefaleia Secundários , Transtornos de Enxaqueca , Cefaleia do Tipo Tensional , Cefalalgias Autonômicas do Trigêmeo , Adulto , Humanos , Estudos Transversais , Cefaleia , Cefaleia do Tipo Tensional/diagnóstico , Cefaleia do Tipo Tensional/tratamento farmacológico , Cefaleia do Tipo Tensional/epidemiologia , China/epidemiologia , Transtornos da Cefaleia Secundários/diagnóstico , Transtornos da Cefaleia Secundários/epidemiologia , Transtornos da Cefaleia Secundários/prevenção & controleRESUMO
BACKGROUND: Social assistant robots (SARs) are an important part of providing high quality health and social care for older people, and are an effective measure to promote the development of smart aging. Therefore, it is important to understand the factors that influence the acceptance of assistive robots by older adults. PURPOSE: To investigate the acceptance of SARs for older adults living in the community and explore its influencing factors. METHODS: 207 elderly was invited to answer a questionnaire after watching a SAR video and discussing it. Participants' characteristics, physical health status, general self-efficacy, personality trait and acceptance toward SARs were recorded and analyzed using multiple linear regression analysis. RESULTS: showed that the degree of acceptance among older adults living in the community was moderate(2.55±0.86), and the acceptance rate was 51.0%. Whether to use mobile devices(smartphones, computers, robots), the experience of using mobile service devices, perceived usefulness, perceived enjoyment, perceived ease of use and attitude were the main affecting factors (P<0.05). CONCLUSIONS: The elderly Chinese in the community have a low acceptance of SARs. The higher the perceived usefulness, perceived enjoyment and perceived ease of use, the more positive attitude to using. The elderly who has the experience of using mobile service devices have a higher acceptance of SARs.