Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 278
Filtrar
1.
Endocr Pract ; 2024 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-39260773

RESUMEN

BACKGROUND: Mineralocorticoid receptor antagonists (MRAs) are the recommended medical therapy for bilateral primary aldosteronism (BPA). Compared with essential hypertension (EH), patients with BPA have higher cardiocerebrovascular disease (CCVD). There is no consensus on the criteria to assess the effectiveness of medical therapy for BPA. OBJECTIVE: To investigate the incidence and the risk factors for CCVD after medical therapy of BPA. METHODS: We conducted a retrospective cohort study including 240 BPA patients treated with MRA. The post-treatment plasma renin activity (PRA) was defined as unsuppressed (PRA≥1ng/ml/h) otherwise, it was defined as suppressed. We analyzed the association of post-treatment PRA status with CCVD outcomes. RESULTS: 7.1% (17/240) of patients with BPA developed CCVD at a median follow-up of 5.0 (2.96,7.66) years. 57.1% of patients had PRA ≥ 1ng/ml/h after treatment. Patients with PRA <1ng/ml/h have a higher incidence of CCVD (12.6% vs. 2.9%, P < 0.05) and they are at greater risk than those with PRA ≥1ng/ml/h (HR=4.50, 95% CI: 1.47-13.83, P<0.05; adjusted HR=3.98, 95% CI: 1.22-13.02, P<0.05). CONCLUSION: Patients with BPA treated with pharmacological have a high incidence of CCVD. PRA may be an indicator that mineralocorticoids are being adequately antagonized.

2.
J Proteome Res ; 2024 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-39225497

RESUMEN

Intracerebral hemorrhage (ICH) could trigger inflammatory responses. However, the specific role of inflammatory proteins in the pathological mechanism, complications, and prognosis of ICH remains unclear. In this study, we investigated the expression of 92 plasma inflammation-related proteins in patients with ICH (n = 55) and healthy controls (n = 20) using an Olink inflammation panel and discussed the relation to the severity of stroke, clinical complications, 30-day mortality, and 90-day outcomes. Our result showed that six proteins were upregulated in ICH patients compared with healthy controls, while seventy-four proteins were downregulated. In patients with ICH, seven proteins were increased in the severe stroke group compared with the moderate stroke group. In terms of complications, two proteins were downregulated in patients with pneumonia, while nine proteins were upregulated in patients with sepsis. Compared with the survival group, three proteins were upregulated, and one protein was downregulated in the death group. Compared with the good outcome group, eight proteins were upregulated, and four proteins were downregulated in the poor outcome group. In summary, an in-depth exploration of the differential inflammatory factors in the early stages of ICH could deepen our understanding of the pathogenesis of ICH, predict patient prognosis, and explore new treatment strategies.

3.
Nurse Educ Today ; 142: 106356, 2024 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-39167874

RESUMEN

BACKGROUND: Adequate professional preparation of nursing undergraduates is conducive to developing health care careers. Deep learning is important for enhancing nursing competencies and the overall quality of students. However, limited research has been conducted to explore deep learning and its associated factors for students in higher nursing education. OBJECTIVE: To describe the level of deep learning and explore its associated factors among Chinese nursing undergraduates. DESIGN: A cross-sectional study. SETTING: This study was conducted at a medical university in Anhui Province, China. PARTICIPANTS: Convenience sampling was used to survey 271 nursing undergraduates between July and September 2023. METHODS: The survey included questions about general information, deep learning, and critical thinking disposition. Nonparametric tests were used to distinguish the intergroup differences. Correlations were evaluated using Spearman's rank correlation analysis. Hierarchical multiple regression analysis was performed to determine the influencing factors. RESULTS: The deep learning score of the nursing undergraduates was 3.82 (3.56, 4.00). Hierarchical multiple regression analysis revealed that gender (ß = 0.10, P = 0.044), experience as a student leader (ß = 0.10, P = 0.049), and critical thinking disposition (ß = 0.60, P = 0.000) significantly impacted deep learning. All the variables explained 41.1 % of the total mean score variance for deep learning. CONCLUSION: Chinese nursing undergraduates showed upper-middle levels of deep learning. Gender, experience as a student leader, and critical thinking disposition were significantly associated factors of deep learning. Nursing educators should provide targeted interventions for deep learning to facilitate the professional competencies of these students.

4.
Brain Behav Immun ; 122: 122-136, 2024 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-39128573

RESUMEN

Maternal separation (MS), a form of early life adversity, increases the risk of psychiatric disorders in adulthood by intricately linking cytokines and mood-regulating brain circuits. The Lateral Habenula (LHb) encodes aversive experiences, contributes to negative moods, and is pivotal in depression development. However, the precise impact of MS on LHb cytokine signaling and synaptic plasticity remains unclear. We reported that adolescent MS offspring mice displayed susceptibility to depression behavioral phylotypes, with neuronal hyperactivity and an imbalance in pro-inflammatory and anti-inflammatory cytokines in the LHb. Moreover, the decreased IL-10 level negatively correlated with depressive-like behaviors in susceptible mice. Functionally, LHb IL-10 overexpression restored decreased levels of PI3K, phosphorylated AKT (pAKT), gephyrin, and membrane GABAA receptor proteins while reducing abnormally elevated GSK3ß and Fos expression, rescuing the MS-induced depression. Conversely, LHb neuronal IL-10 receptor knockdown in naive mice increased Fos expression and elicited depression-like symptoms, potentially through impaired membrane GABAA receptor trafficking by suppressing the PI3K/pAKT/gephyrin cascades. Hence, this work establishes a mechanism by which MS promotes susceptibility to adolescent depression by impeding the critical role of IL-10 signaling on neuronal GABAA receptor function.


Asunto(s)
Depresión , Habénula , Interleucina-10 , Privación Materna , Receptores de GABA-A , Animales , Receptores de GABA-A/metabolismo , Ratones , Interleucina-10/metabolismo , Depresión/metabolismo , Femenino , Habénula/metabolismo , Masculino , Ratones Endogámicos C57BL , Transducción de Señal/fisiología , Susceptibilidad a Enfermedades/metabolismo , Neuronas/metabolismo , Transporte de Proteínas/fisiología , Fosfatidilinositol 3-Quinasas/metabolismo , Citocinas/metabolismo
5.
Poult Sci ; 103(11): 104217, 2024 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-39190995

RESUMEN

Trimethyltin chloride (TMT) is widespread in the environment and is harmful to both humans and animals. In order to investigate the toxicity mechanism of TMT exposure on chicken liver, We established an in vivo experimental model by giving chickens oral administration of different concentrations of TMT dilution solution and vitro experiments of treating leghorn male hepatoma (LMH) cells for 12 h. The results showed that Albumin (ALB), total protein (TP) and alanine aminotransferase (ALT) in the blood of TMT-treated chickens, as well as ALT and aspartate aminotransferase (AST) in the liver, were dose-dependently increased, and different degrees of necrosis of hepatocytes were observed in histology. Meanwhile, TMT exposure led to a significant decrease in glutathione (GSH) content in chicken liver tissues and LMH cells, what's more a significant increase in malondialdehyde (MDA) content in cell supernatants. The expression of apoptosis-related genes Caspase8, Caspase3 and Caspase9 were increased in chicken liver tissues and LMH cells after treated by TMT, and an increased in the percentage of late apoptosis in LMH cells. This suggests that TMT can cause oxidative stress and apoptosis in chicken livers and cells, resulting in liver injury.

6.
Mol Genet Genomics ; 299(1): 70, 2024 Jul 17.
Artículo en Inglés | MEDLINE | ID: mdl-39017768

RESUMEN

Lung adenocarcinoma (LUAD) is the leading cause of cancer-related death worldwide. Cancer-associated fibroblasts (CAFs) are a special type of fibroblasts, which play an important role in the development and immune escape of tumors. Weighted gene co-expression network analysis (WGCNA) was used to construct the co-expression module. In combination with univariate Cox regression and analysis of least absolute shrinkage operator (LASSO), characteristics associated with CAFs were developed for a prognostic model. The migration and proliferation of lung cancer cells were evaluated in vitro. Finally, the expression levels of proteins were analyzed by Western blot. LASSO Cox regression algorithm was then performed to select hub genes. Finally, a total of 2 Genes (COL5A2, COL6A2) were obtained. We then divided LUAD patients into high- and low-risk groups based on CAFs risk scores. Survival analysis, CAFs score correlation analysis and tumor mutation load analysis showed that COL5A2 and COL6A2 were high-risk genes for LUAD. Human Protein Atlas (HPA), western blot and PCR results showed that COL5A2 and COL6A2 were up-regulated in LUAD tissues. When COL5A2 and COL6A2 were knocked down, the proliferation, invasion and migration of lung cancer cells were significantly decreased. Finally, COL5A2 can affect LUAD progression through the Wnt/ß-Catenin and TGF-ß signaling pathways. Our CAFs risk score model offers a new approach for predicting the prognosis of LUAD patients. Furthermore, the identification of high-risk genes COL5A2 and COL6A2 and drug sensitivity analysis can provide valuable candidate clues for clinical treatment of LUAD.


Asunto(s)
Adenocarcinoma del Pulmón , Fibroblastos Asociados al Cáncer , Neoplasias Pulmonares , Humanos , Adenocarcinoma del Pulmón/genética , Adenocarcinoma del Pulmón/patología , Adenocarcinoma del Pulmón/mortalidad , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Neoplasias Pulmonares/mortalidad , Fibroblastos Asociados al Cáncer/metabolismo , Fibroblastos Asociados al Cáncer/patología , Pronóstico , Regulación Neoplásica de la Expresión Génica , Inmunoterapia/métodos , Proliferación Celular/genética , Biomarcadores de Tumor/genética , Colágeno Tipo V/genética , Movimiento Celular/genética , Línea Celular Tumoral , Masculino , Femenino , Análisis de Supervivencia
7.
Biomed Eng Online ; 23(1): 74, 2024 Jul 27.
Artículo en Inglés | MEDLINE | ID: mdl-39068441

RESUMEN

OBJECTIVES: To explore the impact of hallux valgus (HV) on lower limb neuromuscular control strategies during the sit-to-stand (STS) movement, and to evaluate the effects of Kinesio taping (KT) intervention on these control strategies in HV patients. METHODS: We included 14 young healthy controls (HY), 13 patients in the HV group (HV), and 11 patients in the HV group (HVI) who underwent a Kinesio taping (KT) intervention during sit-to-stand (STS) motions. We extracted muscle and kinematic synergies from EMG and motion capture data using non-negative matrix factorization (NNMF). In addition, we calculated the center of pressure (COP) and ground reaction forces (GRF) to assess balance performance. RESULTS: There were no significant differences in the numbers of muscle and kinematic synergies between groups. In the HV group, knee flexors and ankle plantar flexors were abnormally activated, and muscle synergy D was differentiated. Muscle synergy D was not differentiated in the HVI group. CONCLUSION: Abnormal activation of knee flexors and plantar flexors led to the differentiation of module D in HV patients, which can be used as an indicator of the progress of HV rehabilitation. KT intervention improved motor control mechanisms in HV patients.


Asunto(s)
Cinta Atlética , Hallux Valgus , Humanos , Fenómenos Biomecánicos , Hallux Valgus/fisiopatología , Hallux Valgus/terapia , Hallux Valgus/rehabilitación , Masculino , Femenino , Adulto , Movimiento , Adulto Joven , Electromiografía , Fenómenos Mecánicos , Músculo Esquelético/fisiopatología , Músculo Esquelético/fisiología , Sedestación , Posición de Pie
8.
Materials (Basel) ; 17(10)2024 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-38793467

RESUMEN

The rapid development of miniaturized, high-frequency, and highly integrated microelectronic devices has brought about critical issues in electromagnetic compatibility and thermal management. In recent years, there has been significant interest in lightweight polymer-based composites that offer both electromagnetic interference (EMI) shielding and thermal conductivity. One promising approach involves constructing three-dimensional (3D) interconnection networks using functional fillers in the polymer matrix. These networks have been proven effective in enhancing the thermal and electrical conductivity of the composites. This mini-review focuses on the preparation and properties of 3D network-reinforced polymer composites, specifically those incorporating metal, carbon, ceramic, and hybrid networks. By comparing the effects of different filler types and distribution on the composite materials, the advantages of 3D interconnected conductive networks in polymer composites are highlighted. Additionally, this review addresses the challenges faced in the field of multifunctional thermal management and electromagnetic protection materials and provides insights into future development trends and application prospects of 3D structured composites.

9.
Microsurgery ; 44(5): e31182, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38798147

RESUMEN

BACKGROUND: Brachial plexus injury is recognized as one of the most severe clinical challenges due to the complex anatomical configuration of the brachial plexus and its propensity for variation, which complicates safe clinical interventions. This study aimed to ascertain the prevalence and characterize the types of brachial plexus variations, and to elucidate their clinical implications. MATERIALS AND METHODS: We conducted meticulous dissections of 60 formalin-fixed cadavers' upper arm, axilla and lower neck to reveal and assess the roots, trunks, divisions, cords, and branches of the brachial plexus. The pattern of branching was noted by groups of dissecting medical students and confirmed by the senior anatomists. The variations discovered were record and photographed using a digital camera for further analysis. RESULTS: Variations in the brachial plexus were identified in 40 of the 60 cadavers, yielding a prevalence rate of 66.7%. These variations were classified into root anomalies (2.1%), trunk anomalies (8.5%), division anomalies (2.1%), and cord anomalies (4.3%). Notably, anomalies in communicating branches were observed in 39 cadavers (83.0%): 14 with bilateral anomalies, 14 with anomalies on the left side, and 11 on the right side. These communicating branches formed connections between the roots and other segments, including trunks, cords, and terminal nerves, and involved the median, musculocutaneous, and ulnar nerves. CONCLUSION: The frequency and diversity of brachial plexus variations, particularly in communicating branches, are significant in cadavers. It is imperative that these variations are carefully considered during the diagnostic process, treatment planning, and prior to procedures such as supraclavicular brachial plexus blocks and nerve transfers, to mitigate the risk of iatrogenic complications.


Asunto(s)
Variación Anatómica , Plexo Braquial , Cadáver , Humanos , Plexo Braquial/anatomía & histología , Plexo Braquial/anomalías , Femenino , Masculino , Adulto , Disección , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Relevancia Clínica
10.
Psychol Res Behav Manag ; 17: 1819-1830, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38716259

RESUMEN

Background: The present study aimed to investigate the potential role of perceived stress, impulsivity trait, executive dysfunction in non-suicidal self-injury (NSSI) thoughts among college students, as well as the gender differences. Methods: A sample of 890 university students completed self-report measures of NSSI thoughts in the past month, the level of perceived stress, impulsivity traits, and executive dysfunction. Results: Compared to those with low level of perceived stress, participants with high level of perceived stress reported significant higher levels of impulsivity trait and executive dysfunction, and higher frequency of NSSI thoughts, and there were no gender differences. Male participants with NSSI thoughts, compared to males without NSSI thoughts, reported significant higher levels of perceived stress and executive dysfunction. Female participants with NSSI thoughts, compared to females without NSSI thoughts, reported significant higher levels of perceived stress, impulsivity trait, and executive dysfunction. Hierarchical regression analysis revealed only executive dysfunction was associated with NSSI thoughts in males, while only perceived stress was associated with NSSI thoughts in females. Conclusion: This study revealed different influence factors for NSSI thoughts in male and female college students. NSSI thoughts in males were more likely associated with executive dysfunction while in females were due to recently perceived stress.

11.
Front Endocrinol (Lausanne) ; 15: 1369582, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38745957

RESUMEN

Context: The prevalence of unilateral primary aldosteronism (UPA) with cortisol co-secretion varies geographically. Objective: To investigate the prevalence and clinical characteristics of UPA with cortisol co-secretion in a Chinese population. Design: Retrospective cohort study. Methods: We recruited 580 patients with UPA who underwent cosyntropin stimulation test (CST) after the 1-mg dexamethasone suppression test (DST) and retrospectively analyzed the clinical characteristics and postoperative outcomes of UPA with and without cortisol co-secretion. Results: UPA with cortisol co-secretion (1 mg DST>1.8 ug/dL) was identified in 65 of 580 (11.2%) patients. These patients were characterized by older age, longer duration of hypertension, higher concentration of plasma aldosterone and midnight cortisol, lower adrenocorticotropic hormone (ACTH) and dehydroepiandrosterone sulfate (DHEAS), larger tumor diameter, and more history of diabetes mellitus. Cortisol and aldosterone levels were higher and DHEAS level was lower in UPA with cortisol co-secretion at 0-120 min after CST. Among 342 UPA patients with KCNJ5 gene sequencing and follow-up results, the complete clinical success rate was lower in UPA with cortisol co-secretion (33.3% vs. 56.4%, P<0.05); the complete biochemical success rate and KCNJ5 mutation did not differ between the two groups. Age, tumor size, and ACTH were independent predictors of UPA with cortisol co-secretion. Sex, BMI, duration of hypertension, KCNJ5 mutation, and cortisol co-secretion were independent predictors for complete clinical success in UPA after surgery. Conclusions: UPA with cortisol co-secretion is not uncommon in China, but the clinical features were distinctly different from those without co-secretion. Cortisol co-secretion is an independent risk factor for incomplete clinical success after surgery in UPA.


Asunto(s)
Hidrocortisona , Hiperaldosteronismo , Humanos , Hiperaldosteronismo/cirugía , Hiperaldosteronismo/metabolismo , Hiperaldosteronismo/sangre , Masculino , Femenino , Persona de Mediana Edad , Hidrocortisona/sangre , Estudios Retrospectivos , Adulto , Aldosterona/sangre , Adrenalectomía , China/epidemiología , Resultado del Tratamiento , Hormona Adrenocorticotrópica/sangre , Canales de Potasio Rectificados Internamente Asociados a la Proteína G/genética , Canales de Potasio Rectificados Internamente Asociados a la Proteína G/metabolismo , Estudios de Seguimiento , Pronóstico
12.
Chem Biol Drug Des ; 103(4): e14513, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38570322

RESUMEN

Taxol (paclitaxel) is the first approved microtubule-stabilizing agent (MSA) by binding stoichiometrically to tubulin, which is considered to be one of the most significant advances in first-line chemotherapy against diverse tumors. However, a large number of residue missence mutations harboring in the tubulin have been observed to cause acquired drug resistance, largely limiting the clinical application of Taxol and its analogs in chemotherapy. A systematic investigation of the intermolecular interactions between the Taxol and various tubulin mutants would help to establish a comprehensive picture of drug response to tubulin mutations in clinical treatment of cancer, and to design new MSA agents with high potency and selectivity to overcome drug resistance. In this study, we described an integration of in silico analysis and in vitro assay (iSiV) to profile Taxol against a panel of 149 clinically observed, cancer-associated missence mutations in ß-tubulin at molecular and cellular levels, aiming to a systematic understanding of molecular mechanism and biological implication underlying drug resistance and sensitivity conferring from tubulin mutations. It is revealed that the Taxol-resistant mutations can be classified into three types: (I) nonbonded interaction broken due to mutation, (II) steric hindrance caused by mutation, and (III) conformational change upon mutation. In addition, we identified three new Taxol-resistant mutations (C239Y, T274I, and R320P) that can largely reduce the binding affinity of Taxol to tubulin at molecular level, in which the T274I and R320P were observed to considerably impair the antitumor activity of Taxol at cellular level. Moreover, a novel drug-susceptible mutation (M363T) was also identified, which improves Taxol affinity by 2.6-fold and decreases Taxol antitumor EC50 values from 29.4 to 18.7 µM.


Asunto(s)
Paclitaxel , Tubulina (Proteína) , Paclitaxel/farmacología , Tubulina (Proteína)/metabolismo , Microtúbulos/metabolismo , Mutación , Resistencia a Medicamentos
14.
Midwifery ; 133: 103994, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38608543

RESUMEN

BACKGROUND: Women undergoing caesarean section (CS) experience difficulties when preparing for discharge, and readiness for hospital discharge (RHD) may depend on individual characteristics. OBJECTIVE: To explore the status of RHD in women with CS, identify the latent classes of RHD, and analyse predictors from a bio-psycho-social perspective. METHODS: A sample of 410 women with CS completed the following questionnaires on demographic and obstetric characteristics: Readiness for Hospital Discharge Study-New Mother Form (RHDS-NMF), Parents' Postnatal Sense of Security (PPSS), Quality of Discharge Teaching Scale (OB-QDTS), and Postpartum Support Questionnaire (PSQ). Latent profile analysis was used to identify the latent classes of RHD. Multiple logistic regression analysis was used to analyse the predictors. RESULTS: In total, 96.6 % of women with CS reported discharge ready, and the score of RHDS-NMF was 136.09 ± 25.59. Three latent classes were identified as Low RHD (16.1 %), Moderate RHD (41.7 %), and High RHD (42.2 %). Primiparas (OR = 2.867 / 1.773; P = 0.012 / 0.033), emergency CS (OR = 3.134 / 2.470; P = 0.006 / 0.002), lower levels of PPSS (OR = 0.909 / 0.942; P = 0.009 / 0.013) and OB-ODTS (OR = 0.948 / 0.975; P < 0.001) were associated with Moderate and Low RHD. Lower PSQ predicted a higher probability of Low RHD (OR = 0.955; P = 0.038). CONCLUSIONS: The perception of RHD by women in the study was inaccurate, with more than half not being classified as High RHD. Healthcare professionals can anticipate interventions for maternal well-being based on the characteristics of the different RHD classes.


Asunto(s)
Cesárea , Alta del Paciente , Humanos , Femenino , Adulto , Cesárea/estadística & datos numéricos , Cesárea/psicología , Alta del Paciente/normas , Alta del Paciente/estadística & datos numéricos , Encuestas y Cuestionarios , Embarazo , Análisis de Clases Latentes , Estudios Transversales , Modelos Logísticos
15.
Front Immunol ; 15: 1360955, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38633259

RESUMEN

With a shortage of organs for transplant, the use of marginal donors can be an effective measure to meet the shortfall. Myelodysplastic syndromes (MDS) are considered an absolute contraindication for organ donation because of the high invasive potential. Currently, organ transplantation from donors with a past history of MDS has not been reported. In this paper, we report the successful clinical experience of one liver transplantation and two kidney transplantations, with organs donated by a 39-year-old patient diagnosed with a past history of MDS following intracranial hemorrhage. Four and a half years after transplantation, the three recipients are all doing well. However, it is still not clear to what extent organs donated by patients with a past history of MDS can be safely transplanted. This report provides support for the careful use of marginal donors. With effective treatment and full peer assessment, livers and kidneys from donors with a past history of MDS may be safely transplanted.


Asunto(s)
Trasplante de Hígado , Síndromes Mielodisplásicos , Humanos , Adulto , Donantes de Tejidos , Riñón , Hígado
16.
Front Psychol ; 15: 1344185, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38633878

RESUMEN

Introduction: Nurses caring for patients with gynecological cancer experience significant job stress, which adversely impacts their mental health. Previous studies have indicated that perceived professional benefits serves as a protective factor for nurses' mental health, and factors such as job stress, perceived social support and self-efficacy influence their perceived professional benefits. However, the relationships between these factors and the associated mechanisms have remained incompletely understood. This study explored the role of perceived social support and self-efficacy in job stress and perceived professional benefits among nurses caring for patients with gynecological cancer. Methods: During June and July 2023, an investigation was conducted in Anhui Province. The Nurse Job Stressors Scale, Perceived Social Support Scale, Nurses' Perceived Professional Benefits Questionnaire and General Self-Efficacy Scale were administered to 311 nurses caring for patients with gynecological cancer. A chained-mediated effect model was constructed and validated. Results: Job stress negatively affected nurses' perceived professional benefits. Perceived social support was a mediator in job stress and nurses' perceived professional benefits, with a mediating effect value of -0.093. Additionally, perceived social support and self-efficacy functioned as sequential mediators in this relationship, with a mediating effect value of -0.032. Conclusion: This study unveils the influencing mechanisms of job stress on perceived professional benefits of nurses caring for patients with gynecological cancer. It is essential for nursing managers to alleviate nurses' job stress, provide sufficient and effective social support and improve their self-efficacy, ultimately enhancing their perceived professional benefits.

17.
Geriatr Orthop Surg Rehabil ; 15: 21514593241250165, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38681064

RESUMEN

Objective: Preoperative frailty and surgical waiting times are associated with the occurrence of adverse outcomes in patients with hip fractures. Specifically, we aimed to investigate the influence of frailty status and surgical timing on the risk of serious adverse events during hospitalization. Methods: This study utilized an observational single cohort design and included patients aged ≥60 years with a primary diagnosis of hip fracture. Frailty was assessed using the chart-derived frailty index (CFI), which was calculated based on demographic and routine laboratory variables. The primary outcome of interest was the occurrence of in-hospital serious adverse events. A multivariate logistic regression model was utilized to examine the risk factors influencing outcomes. Results: The study included 427 participants, with a mean age of 80.28 ± 8.13 years and 64.2% of whom were female. Patients with high CFI have more comorbidities (P < .001), lower surgical rates (P = .002), and delayed surgical times (P = .033). A total of 239 patients (56.0%) experienced serious adverse events. The high CFI group had a significantly higher occurrence of serious adverse events compared to the low CFI group (73.4% vs 48.5%, P < .001). After adjusting for surgical timing and covariates, the multivariate logistic regression analysis revealed that high frailty significantly increased the risk for serious adverse events (OR = 2.47, 95% CI 1.398-4.412), infection (OR = 1.99, 95% CI 1.146-3.446), acute heart failure (OR = 3.37, 95% CI 1.607-7.045). However, the timing of surgery did not demonstrate any association with these outcomes. In addition, after adjusting for surgical factors, high CFI remains an independent risk factor for these complications. Conclusions: Frailty serves as a reliable predictor of the probability of encountering severe adverse events while hospitalized for elderly individuals with hip fractures. This method has the potential to pinpoint particular modifiable factors that necessitate intervention, whereas the impact of surgical timing remains uncertain and necessitates additional research.

19.
Chem Commun (Camb) ; 60(11): 1452-1455, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-38214095

RESUMEN

Fluorescent imaging probes are crucial for exploring nucleus-related cellular events in live cells. Ideal probes should be photostable, small-sized, highly contrasted, and low in background. Here, we discovered that malachite green is a water-soluble near-infrared luminogen with aggregation-induced emission properties. Importantly, it can be used for living cell nucleus staining in a wash-free manner.


Asunto(s)
Colorantes de Rosanilina , Agua , Humanos , Colorantes Fluorescentes , Coloración y Etiquetado , Núcleo Celular
20.
Environ Res ; 247: 118232, 2024 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-38262517

RESUMEN

Nanoscale zero-valent iron (nZVI) is attracting increasing attention as the most commonly used environmental remediation material. However, given the high surface area and strong reducing capabilities of nZVI, there is a lack of understanding regarding its effects on the complex anaerobic methane production process in flooded soils. To elucidate the mechanism of CH4 production in soil exposed to nZVI, paddy soil was collected and subjected to anaerobic culture under continuous flooding conditions, with various dosages of nZVI applied. The results showed that the introduction of nZVI into anaerobic flooded rice paddy systems promoted microbial utilization of acetate and carbon dioxide as carbon sources for methane production, ultimately leading to increased methane production. Following the introduction of nZVI into the soil, there was a rapid increase in hydrogen levels in the headspace, surpassing that of the control group. The hydrogen levels in both the experimental and control groups were depleted by the 29th day of culture. These findings suggest that nZVI exposure facilitates the enrichment of hydrogenotrophic methanogens, providing them with a favorable environment for growth. Additionally, it affected soil physicochemical properties by increasing pH and electrical conductivity. The metagenomic analysis further indicates that under exposure to nZVI, hydrogenotrophic methanogens, particularly Methanobacteriaceae and Methanocellaceae, were enriched. The relative abundance of genes such as mcrA and mcrB associated with methane production was increased. This study provides important theoretical insights into the response of key microbes, functional genes, and methane production pathways to nZVI during anaerobic methane production in rice paddy soils, offering fundamental insights into the long-term fate and risks associated with the introduction of nZVI into soils.


Asunto(s)
Hierro , Aguas del Alcantarillado , Anaerobiosis , Hierro/química , Suelo , Metano , Hidrógeno/metabolismo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA