Search

Introduction: The objective of the present study was to determine if emotional intelligence and family stress are predictors of satisfaction with studies in university students. Method: Cross-sectional predictive study with a quantitative approach. The population was made up of 414 university students of both sexes who applied the TMMS-24 Emotional Intelligence Scale by Salovey and Mayer Family Stress Scale, the original version of Olson, and the Brief Satisfaction with Studies EBSE scale. Results: When performing statistical processing, it was evident that family stress has a standardized beta coefficient [beta] = -0.116; p < 0.05 indicates a low, statistically significant, indirect prediction. In other words, the greater the family stress, the lower the satisfaction with studies. In the same way, the standardized beta coefficient that represents the prediction of emotional intelligence on satisfaction with studies, which was [beta] = 0.470; p < 0.05, showed a direct, moderate, and statistically significant predictive value. Discussion and Conclusions: The results establish that emotional intelligence and family stress predict satisfaction with studies. The areas that are part of emotional intelligence, such as perception, understanding, and regulation, are related to family stress levels, and these influence the degree of satisfaction with studies. The greater the emotional intelligence, the greater the satisfaction with studies and different life stages.

Peroxiredoxin 6 (Prdx6) repairs peroxidized membranes by reducing oxidized phospholipids, and by replacing oxidized sn-2 fatty acyl groups through hydrolysis/reacylation by its phospholipase A2 (aiPLA2) and lysophosphatidylcholine acyltransferase activities. Prdx6 is highly expressed in the lung, and intact lungs and cells null for Prdx6 or with single-point mutations that inactivate either Prdx6-peroxidase or aiPLA2 activity alone exhibit decreased viability, increased lipid peroxidation, and incomplete repair when exposed to paraquat, hyperoxia, or organic peroxides. Ferroptosis is form of cell death driven by the accumulation of phospholipid hydroperoxides. We studied the role of Prdx6 as a ferroptosis suppressor in the lung. We first compared the expression Prdx6 and glutathione peroxidase 4 (GPx4) and visualized Prdx6 and GPx4 within the lung. Lung Prdx6 mRNA levels were five times higher than GPx4 levels. Both Prdx6 and GPx4 localized to epithelial and endothelial cells. Prdx6 knockout or knockdown sensitized lung endothelial cells to erastin-induced ferroptosis. Cells with genetic inactivation of either aiPLA2 or Prdx6-peroxidase were more sensitive to ferroptosis than WT cells, but less sensitive than KO cells. We then conducted RNA-seq analyses in Prdx6-depleted cells to further explore how the loss of Prdx6 sensitizes lung endothelial cells to ferroptosis. Prdx6 KD upregulated transcriptional signatures associated with selenoamino acid metabolism and mitochondrial function. Accordingly, Prdx6 deficiency blunted mitochondrial function and increased GPx4 abundance whereas GPx4 KD had the opposite effect on Prdx6. Moreover, we detected Prdx6 and GPx4 interactions in intact cells, suggesting that both enzymes cooperate to suppress lipid peroxidation. Notably, Prdx6-depleted cells remained sensitive to erastin-induced ferroptosis despite the compensatory increase in GPx4. These results show that Prdx6 suppresses ferroptosis in lung endothelial cells and that both aiPLA2 and Prdx6-peroxidase contribute to this effect. These results also show that Prdx6 supports mitochondrial function and modulates several coordinated cytoprotective pathways in the pulmonary endothelium.

BACKGROUND: Elephant seals exhibit extreme hypoxemic tolerance derived from repetitive hypoxia/reoxygenation episodes they experience during diving bouts. Real-time assessment of the molecular changes underlying protection against hypoxic injury in seals remains restricted by their at-sea inaccessibility. Hence, we developed a proliferative arterial endothelial cell culture model from elephant seals and used RNA-seq, functional assays, and confocal microscopy to assess the molecular response to prolonged hypoxia. RESULTS: Seal and human endothelial cells exposed to 1% O2 for up to 6 h respond differently to acute and prolonged hypoxia. Seal cells decouple stabilization of the hypoxia-sensitive transcriptional regulator HIF-1α from angiogenic signaling. Rapid upregulation of genes involved in glutathione (GSH) metabolism supports the maintenance of GSH pools, and intracellular succinate increases in seal but not human cells. High maximal and spare respiratory capacity in seal cells after hypoxia exposure occurs in concert with increasing mitochondrial branch length and independent from major changes in extracellular acidification rate, suggesting that seal cells recover oxidative metabolism without significant glycolytic dependency after hypoxia exposure. CONCLUSIONS: We found that the glutathione antioxidant system is upregulated in seal endothelial cells during hypoxia, while this system remains static in comparable human cells. Furthermore, we found that in contrast to human cells, hypoxia exposure rapidly activates HIF-1 in seal cells, but this response is decoupled from the canonical angiogenesis pathway. These results highlight the unique mechanisms that confer extraordinary tolerance to limited oxygen availability in a champion diving mammal.

Objective: Given funding concerns and heightened work expectations at baccalaureate degree-granting community colleges, we set out to understand faculty advisors' emotional labor in such context. Methods: We conducted a supra analysis, which is a form of secondary analysis of qualitative data. Existing interview data were drawn from a mixed-methods study focused on changes in academic advising policies and practices at baccalaureate degree-granting community colleges. Results: We identified three interrelated themes: (a) putting students first; (b) overextending oneself selflessly; and (c) pressures of neoliberalism and bureaucratic checkpoints. Conclusion/Contributions: This work addresses an important gap in the literature as it pertains to the complexities of the work and professional lives of community college faculty at CCB-conferring colleges. In addition to highlighting the emotional labor of CCB faculty advisors, this work further illuminates how community colleges have "normalized emotional labor as part of the community college faculty role".

La Economía Social y Solidaria se refiere a un grupo de organizaciones que a través de su trabajo impulsan el desarrollo socioeconómico, cultural y ambiental en una región, este modelo evoca a las cooperativas, comunidades ejidales, cajas de ahorro y fundaciones. En México, el INAES regula los NODESS, definidas como alianzas entre el sector social de la economía, académico y gubernamental, que unen sus capacidades para incidir positivamente en una región. El objetivo fue analizar la importancia de la Economía Social y Solidaria y la pertinencia de las alianzas NODESS en México, particularmente en Sinaloa, como estrategia de desarrollo regional. La investigación fue cualitativa, con la técnica del estudio por categorías apoyada en el registro documental de bases de datos científicas digitales, con criterios de búsqueda el período de las publicaciones (2018 a 2023) y las palabras clave. La información se clasificó en conceptos, prácticas y ejes, se sintetizó y se dedujeron patrones. Para profundizar el análisis, se integró una experiencia de NODESS de Sinaloa. Los resultados resaltan la importancia de las prácticas de la Economía Social y Solidaria en las comunidades y la aceptación de los NODESS en México, los ejes coincidentes fueron fortalecimiento de la gestión productiva, emprendimiento asociativo y profesionalización del personal. Se concluye que, las alianzas NODESS son una oportunidad para impulsar el sector primario en Sinaloa. Para futuras investigaciones se propone elaborar un compendio de buenas prácticas de los NODESS en Sinaloa, con la intención de divulgarlo e impulsar la creación de nuevas alianzas.

Abstract This study aims to evaluate the applicability of the high-resolution WaveFront Phase Imaging Sensor (WFPI) in eyes with Fuchs’ Endothelial Corneal Dystrophy (FECD) through qualitative and quantitative analysis using a custom-designed Automatic Guttae Detection Method (AGDM). The ocular phase was measured using the t $$\cdot$$ · eyede aberrometer and then was processed to obtain its High-Pass Filter Map (HPFM). The subjects were pathological and healthy patients from the Fundación Jiménez-Díaz Hospital (Madrid, Spain). The AGDM was developed and applied in pupils with 3 and 5 mm of diameter. A set of metrics were extracted and evaluated like the Root-Mean-Square error (RMS), Number of guttae, Guttae Area, and Area of Delaunay Triangulation (DT). Finally, a Support Vector Machine (SVM) model was trained to classify between pathological and healthy eyes. Quantitatively, the HPFM reveals a dark spots pattern according to the ophthalmologist’s description of the slit-lamp examination of guttae distribution. There were significant statistical differences in all the metrics when FECD and Healthy groups were compared using the same pupil size; but comparing both pupil sizes for the same group there were significant differences in most of the variables. This sensor is a value tool to objectively diagnose and monitor this pathology through wavefront phase changes.

Abstract Background Honey bees are the principal commercial pollinators. Along with other arthropods, they are increasingly under threat from anthropogenic factors such as the incursion of invasive honey bee subspecies, pathogens and parasites. Better tools are needed to identify bee subspecies. Genomic data for economic and ecologically important organisms is increasing, but in its basic form its practical application to address ecological problems is limited. Results We introduce HBeeID a means to identify honey bees. The tool utilizes a knowledge-based network and diagnostic SNPs identified by discriminant analysis of principle components and hierarchical agglomerative clustering. Tests of HBeeID showed that it identifies African, Americas-Africanized, Asian, and European honey bees with a high degree of certainty even when samples lack the full 272 SNPs of HBeeID. Its prediction capacity decreases with highly admixed samples. Conclusion HBeeID is a high-resolution genomic, SNP based tool, that can be used to identify honey bees and screen species that are invasive. Its flexible design allows for future improvements via sample data additions from other localities.

Abstract Introduction To date, there are no sufficient studies aimed to determine a correlation between personal, academic, and psychological variables with academic achievement, measured with the grade point average (GPA) and intelligence in university students according to each sex. Study aim To determine the correlation between studying strategies, personal and psychological factors with GPA and intelligence in a sample of health sciences university students. Methods Health Sciences university students, were invited to participate, those who accepted were cited in a computer room where they signed an informed consent and filled an electronic questionnaire with sociodemographic, behavioral, psychological variables and studying strategies (from the MLSQ instrument) afterwards they performed a verbal and non-verbal intelligence test (Shipley-2). Results A total of 439 students were included, from which 297 (67.7%) were women. The mean of age was 20.34 ± 2.61 years old. We found that no differences in GPA where observed between sexes. We detected a higher correlation between combined intelligence and GPA in women than in men. In addition, most studying strategies showed a higher correlation with GPA than intelligence scores in men´s sample. All these findings coincide with the fact that preparatory GPA was the most correlated variable with university GPA in both sexes. Finally, women showed higher levels of the sum of diseases, somatization, anxiety, depression and academic stress than men, and all these variables showed low significant correlations with the combined intelligence score only in women´s sample. Conclusion Verbal and non-verbal intelligence scores show a lower association to GPA in men than in women, while studying strategies showed a higher association with GPA in men than in women.

Introduction: Management of the patient with cirrhosis of the liver that requires surgical treatment has been relatively unexplored. In Mexico, there is currently no formal stance or expert recommendations to guide clinical decision-making in this context. Aims: The present position paper reviews the existing evidence on risks, prognoses, precautions, special care, and specific management or procedures for patients with cirrhosis that require surgical interventions or invasive procedures. Our aim is to provide recommendations by an expert panel, based on the best published evidence, and consequently ensure timely, quality, efficient, and low-risk care for this specific group of patients. Results: Twenty-seven recommendations were developed that address preoperative considerations, intraoperative settings, and postoperative follow-up and care. Conclusions: The assessment and care of patients with cirrhosis that require major surgical or invasive procedures should be overseen by a multidisciplinary team that includes the anesthesiologist, hepatologist, gastroenterologist, and clinical nutritionist. With respect to decompensated patients, a nephrology specialist may be required, given that kidney function is also a parameter involved in the prognosis of these patients. Resumen: Introducción: El terreno del paciente con cirrosis que requiere de una intervención quirúrgica ha sido poco explorado. En México, a la fecha no contamos con un posicionamiento formal o recomendaciones de expertos que ayuden a la toma de decisiones clínicas en este contexto. Objetivos: Revisar la evidencia existente sobre el riesgo, pronóstico, precauciones, cuidados especiales y manejo o proceder específico para los pacientes con cirrosis que requieren ser intervenidos quirúrgicamente o mediante procedimientos invasivos, para emitir recomendaciones por un panel experto, basadas en la mejor evidencia publicada para la atención oportuna, de calidad, eficiente y con el menor riesgo posible en este grupo específico de pacientes. Resultados: Se obtuvieron 27 recomendaciones, en donde se abordan el terreno preoperatorio, el escenario transoperatorio y el seguimiento y cuidados postoperatorios. Conclusiones: La valoración y cuidado del paciente con cirrosis que requiere un procedimiento quirúrgico o invasivo mayor, debe estar a cargo de un equipo multidisciplinario que brinde soporte al cirujano, durante todo el perioperatorio, este equipo debe incluir al anestesiólogo, hepatólogo, gastroenterólogo, nutriólogo clínico. En el paciente descompensado, puede ser necesario involucrar especialistas en nefrología ya que la función renal es un parámetro implicado también en el pronóstico de estos pacientes.

Resumen: Introducción: El terreno del paciente con cirrosis que requiere una intervención quirúrgica ha sido poco explorado. En México, a la fecha no contamos con un posicionamiento formal o recomendaciones de expertos que ayuden a la toma de decisiones clínicas en este contexto. Objetivos: Revisar la evidencia existente sobre el riesgo, pronóstico, precauciones, cuidados especiales y manejo o proceder específico para los pacientes con cirrosis que requieren ser intervenidos quirúrgicamente o mediante procedimientos invasivos, para emitir recomendaciones por un panel experto, basadas en la mejor evidencia publicada para la atención oportuna, de calidad, eficiente y con el menor riesgo posible en este grupo específico de pacientes. Resultados: Se obtuvieron 27 recomendaciones, en donde se abordan el terreno preoperatorio, el escenario transoperatorio y el seguimiento y cuidados postoperatorios. Conclusiones: La valoración y el cuidado del paciente con cirrosis que requiere un procedimiento quirúrgico o invasivo mayor debe estar a cargo de un equipo multidisciplinario que brinde soporte al cirujano durante todo el perioperatorio; este equipo debe incluir al anestesiólogo, al hepatólogo, al gastroenterólogo y al nutriólogo clínico. En el paciente descompensado puede ser necesario involucrar especialistas en nefrología, ya que la función renal es un parámetro implicado también en el pronóstico de estos pacientes. Abstract: Introduction: Management of the patient with cirrhosis of the liver that requires surgical treatment has been relatively unexplored. In Mexico, there is currently no formal stance or expert recommendations to guide clinical decision-making in this context. Aims: The present position paper reviews the existing evidence on risks, prognoses, precautions, special care, and specific management or procedures for patients with cirrhosis that require surgical interventions or invasive procedures. Our aim is to provide recommendations by an expert panel, based on the best published evidence, and consequently ensure timely, quality, efficient, and low-risk care for this specific group of patients. Results: Twenty-seven recommendations were developed that address preoperative considerations, intraoperative settings, and postoperative follow-up and care. Conclusions: The assessment and care of patients with cirrhosis that require major surgical or invasive procedures should be overseen by a multidisciplinary team that includes the anesthesiologist, hepatologist, gastroenterologist, and clinical nutritionist. With respect to decompensated patients, a nephrology specialist may be required, given that kidney function is also a parameter involved in the prognosis of these patients.

Anxiety is a critical component of the development and maintenance of drug addiction; however, anti-anxiety medications such as benzodiazepines and beta-blockers (β-adrenergic receptor antagonists) are not used for the treatment of substance use disorder, except for the management of acute withdrawal syndrome. Preclinical studies have shown that beta-blockers may reduce stress-induced relapse; however, the effect of beta blockers on the escalation and maintenance of drug intake has not been tested. To address this issue, we chronically administered the β-adrenergic receptor antagonist propranolol during the escalation or maintenance of cocaine intake in a model of extended access (6 h) to cocaine self-administration (0.5 mg/kg). The behavioural specificity of propranolol was tested using a non-drug reward (saccharin). Daily administration of propranolol (15 mg/kg) prevented the development of escalation of cocaine self-administration and partially reversed self-administration after the establishment of escalation of intake. Moreover, propranolol dose-dependently decreased the motivation for cocaine tested under a progressive ratio schedule of reinforcement during the development of escalation and after maintenance. Finally, propranolol administration had no effect on the escalation and maintenance of saccharin self-administration. These results demonstrate that chronic treatment with propranolol provides therapeutic efficacy in reducing cocaine self-administration during the development and after the establishment of escalation of cocaine self-administration in an animal model relevant to cocaine use disorder. These results suggest that beta blockers should be further investigated as a target for medication development for the treatment of cocaine use disorder.

For over 10,000 years, Andeans have resided at high altitude where the partial pressure of oxygen challenges human survival. Recent studies have provided evidence for positive selection acting in Andeans on the HIF2A (also known as EPAS1) locus, which encodes for a central transcription factor of the hypoxia-inducible factor pathway. However, the precise mechanism by which this allele might lead to altitude-adaptive phenotypes, if any, is unknown. By analyzing whole genome sequencing data from 46 high-coverage Peruvian Andean genomes, we confirm evidence for positive selection acting on HIF2A and a unique pattern of variation surrounding the Andean-specific single nucleotide variant (SNV), rs570553380, which encodes for an H194R amino acid substitution in HIF-2α. Genotyping the Andean-associated SNV rs570553380 in a group of 299 Peruvian Andeans from Cerro de Pasco, Peru (4,338 m), reveals a positive association with increased fraction of exhaled nitric oxide, a marker of nitric oxide biosynthesis. In vitro assays show that the H194R mutation impairs binding of HIF-2α to its heterodimeric partner, aryl hydrocarbon receptor nuclear translocator. A knockin mouse model bearing the H194R mutation in the Hif2a gene displays decreased levels of hypoxia-induced pulmonary Endothelin-1 transcripts and protection against hypoxia-induced pulmonary hypertension. We conclude the Andean H194R HIF2A allele is a hypomorphic (partial loss of function) allele.