Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 188
Filtrar
1.
Nurs Rep ; 14(2): 946-960, 2024 Apr 16.
Artículo en Inglés | MEDLINE | ID: mdl-38651484

RESUMEN

BACKGROUND: Citizen science is a research approach wherein citizens actively participate alongside professionals in some or all stages of the research process. The bidirectional benefits it generates, especially in the field of health, including empowerment, new hypotheses, and results, and addressing issues truly important to society, justify the necessity to establish a common framework and address barriers to ensure a fruitful evolution of this new approach within nursing research. The aim was to analyze nursing projects with a citizen science focus that have been conducted. METHODS: PRISMA guidelines were employed to conduct a systematic review. Searches were conducted on PubMed, CINHAL, LILACS, IBECS, and Cochrane. Following the identification and screening process, 13 studies were included. The quality of the articles was assessed using the Joanna Brigg Institute (JBI) critical appraisal checklist and the quality of citizen science research using the Citizen Science Appraisal Tool. RESULTS: Citizen science studies in nursing were notably recent (2017-2023). Five research areas were identified, with environmental health being the most predominant. Multiple tools, both technological and traditional, were utilized, with the "Photovoice" and "Our Voice" methodologies being prominent. Citizen participation was limited to data collection and analysis in 7 out of the 13 studies, with most studies working with small samples. Findings regarding the application of this practice were positive, but no study exceeded 26 points on the CSAT scale to be considered high quality in citizen science. CONCLUSIONS: Citizen science can be a promising approach within the field of nursing. There is a need to increase individual participation to fully realize the potential bidirectional benefits. It is imperative to establish a common theoretical framework and continue working on the development of this methodology within nursing.

2.
Heliyon ; 10(8): e29456, 2024 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-38660253

RESUMEN

Modern road infrastructures are complex networks featuring various elements such as roads, bridges, intersections, and roundabouts, with advanced control systems. Roundabouts have gained prominence as a safer alternative to traditional intersections promoting smoother traffic flow and fewer collisions by guiding traffic in one direction, encouraging reduced speed, and minimizing conflict points.This study investigated driver behavior within roundabouts, focusing on gaze behavior, particularly the left-side mirror and window, under mobile phone distraction conditions. In addition, the effects of roundabout specifications (i.e., number of lanes and size of the central island) and the drivers' characteristics (i.e., driving experience) were examined.In total, 43 participants, aged 19-56 years including 30 males and 13 females, held a valid driving license, drove through a virtual simulated urban road containing four roundabouts, implemented in a static driving simulator, under baseline condition (no distraction) as well as mobile-induced distraction. Driving simulator data were collected and drivers' gaze direction and fixation on nine areas of interest were captured with an eye tracker. Results: showed that experienced drivers exhibit a more fixation on the left-side mirror and window and were less distracted. Moreover, the road environment, i.e., the number of cars and the roundabout size, significantly influenced the drivers' attention. As regards the driving performance, the number of infractions increased when the drivers diverted focus from the left side of the car. The outcomes of the present study might help to improve traffic safety at roundabouts.

3.
Microb Biotechnol ; 17(4): e14464, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38635123

RESUMEN

In this opinion, we discuss the role of tRNAs in phage biology and their importance in DNA replication and phage-host interactions. Phages are a diverse group of obligate bacterial viruses that possess genomes with a wide range of sizes. Among them, we find phages with few genes that depend entirely on their host's translational machinery for replication. However, some phages carry genes for all replication steps and even contain genes for their own translational synthesis. In these cases, the integration of tRNA genes in their genomes is not completely understood, generating different theories about their presence and function during the replication cycle. Although different studies have attempted to elucidate their role, additional studies are needed to clarify the presence and significance of tRNA genes in phages. Moreover, we highlight the importance of tRNA genes in phages from both ecological and therapeutic perspectives.


Asunto(s)
Bacteriófagos , ARN de Transferencia
4.
Ocul Immunol Inflamm ; : 1-8, 2024 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-38489503

RESUMEN

PURPOSE: We aimed to compare the visual outcomes after pars plana vitrectomy (PPV) versus tap and inject (T&I) in fungal endophthalmitis (FE) reported in the literature and to compare the findings from the literature with data from a reference centre. METHODS: We performed a systematic review and meta-analysis of studies reporting the use of PPV versus T&I in FE. We also performed a retrospective review of the clinical records of patients with endophthalmitis from a reference centre in Colombia. RESULTS: We included 13 studies with 334 eyes; 53.59% received PPV and 46.4% received T&I. The overall relative risk of improving ≥ 2 lines in PPV versus T&I was 0.98 (95% confidence interval [CI] 0.80-1.22; p = 0.88) with a mean difference of final visual acuity of 0.26 (95% CI 0.12-0.63; p = 0.18). There were no significant differences in subgroup analysis. Data from the reference centre included 32 endophthalmitis cases, 15.6% of which had a fungal aetiology (80% received PPV and 20% T&I). There were no significant differences in the subgroup analysis. CONCLUSIONS: Based on the findings from the literature and the reference centre, T&I is noninferior to PPV. This is the first meta-analysis in the literature evaluating these effects in FE. It is necessary to execute new prospective randomised controlled studies in patients with endophthalmitis.

5.
An. sist. sanit. Navar ; 47(1): e1064, 07-02-2024. tab, graf
Artículo en Español | IBECS | ID: ibc-231766

RESUMEN

Fundamento. El establecimiento de la lactancia materna puede resultar una situación potencialmente estresante. El objetivo del estudio es analizar el sentido de coherencia en mujeres lactantes, establecer los recursos generales de resistencia que lo modulan, y determinar las intervenciones profesionales que lo promueven. Metodología. Se incluyeron estudios en inglés, español o portugués, que evaluaran el sentido de coherencia de las mujeres lactantes, localizados en las bases de datos PubMed, PsycINFO, ScienceDirect y CINAHL entre marzo y mayo de 2023. La calidad de los estudios y el riesgo de sesgo se evaluaron siguiendo los criterios ICROMS y STROBE. Resultados. Se identificaron 316 registros, de los que se incluyeron un total de ocho estudios, tres cualitativos y cinco cuantitativos, todos con calidad suficiente. Un alto nivel de sentido de coherencia materno se relacionó con mayor duración, autoeficacia y disfrute de la experiencia de lactancia, y mayor apego. Los principales recursos generales de resistencia fueron percibir apoyo social, especialmente de parejas, madres y personal sanitario, además de experiencia previa positiva y una actitud positiva. Las intervenciones que favorecieron el sentido de coherencia fueron las relacionadas con un apoyo profesional estrecho, empático, personalizado, integral y centrado en la familia. Conclusiones. La determinación del nivel de sentido de coherencia en madres lactantes puede ayudar a identificar a mujeres con mayor riesgo de destete temprano, y a establecer estrategias de intervención profesional que mejoren la experiencia de lactancia materna. (AU)


Background. The establishment of breastfeeding may sometimes be stressful. We aimed to analyze the sense of coherence in lactating women to determine the general resistance resources during lactation and the professional interventions that promote a high sense of coherence. Methods. A search of studies in English, Spanish, or Portuguese on lactating women's sense of coherence was carried out in PubMed, PsycINFO, ScienceDirect, and CINAH databases published between May and November 2022. Study quality and risk of bias were examined according to ICROMS and STROBE criteria. Results. We identified 316 studies, of which eight -all of adequate quality- were included, three qualitative and five quantitative. A high level of maternal sense of coherence was related to longer duration, self-efficacy, attachment, and enjoyment of the breastfeeding experience. The main general resistance resources were to receive social support, particularly from partners, mothers, and health professionals. The interventions that favored the sense of coherence were mainly those related to a close, empathic, personalized, comprehensive, and family-centered professional support. Conclusions. The detection of the level of sense of coherence in lactating mothers may help identify women with a higher risk of weaning and establish professional intervention strategies that improve the breastfeeding experience. (AU)


Asunto(s)
Humanos , Femenino , Lactante , Sentido de Coherencia , Lactancia Materna/psicología , Salud Materno-Infantil , Adaptación Psicológica
6.
An Sist Sanit Navar ; 47(1)2024 Feb 09.
Artículo en Español | MEDLINE | ID: mdl-38349139

RESUMEN

BACKGROUND: The establishment of breastfeeding may sometimes be stressful. We aimed to analyze the sense of coherence in lactating women to determine the general resistance resources during lactation and the professional interventions that promote a high sense of coherence. METHODS: A search of studies in English, Spanish, or Portuguese on lactating women's sense of coherence was carried out in PubMed, PsycINFO, ScienceDirect, and CINAH databases published between May and November 2022. Study quality and risk of bias were examined according to ICROMS and STROBE criteria. RESULTS: We identified 316 studies, of which eight -all of adequate quality- were included, three qualitative and five quantitative. A high level of maternal sense of coherence was related to longer duration, self-efficacy, attachment, and enjoyment of the breastfeeding experience. The main general resistance resources were to receive social support, particularly from partners, mothers, and health professionals. The interventions that favored the sense of coherence were mainly those related to a close, empathic, personalized, comprehensive, and family-centered professional support. CONCLUSIONS: The detection of the level of sense of coherence in lactating mothers may help identify women with a higher risk of weaning and establish professional intervention strategies that improve the breastfeeding experience.


Asunto(s)
Lactancia Materna , Sentido de Coherencia , Femenino , Humanos , Lactancia , Madres , Apoyo Social
7.
Pest Manag Sci ; 80(3): 1182-1192, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37884685

RESUMEN

BACKGROUND: Centaurea diluta Aiton (North African knapweed) is a major weed concern in Spain as a result of the limited herbicides capable of controlling it, and the limited knowledge of its biology hinders the development of integrated weed management strategies. RESULTS: The current study presents results from two experiments that aimed to: (i) determine the effect of seed burial on seedling emergence; and (ii) model its phenology progression using sigmoidal (SRM) and artificial neural network models (ANN) based on different cohort emergence times. In the first experiment, burial at 2 cm and 5 cm decreased C. diluta emergence by 54% and 90%, respectively, compared to the emergence at 0 cm. In the second experiment, without crop-weed competition conditions, the emergence delay led to reductions in leaf number, rosette diameter, plant height and dry biomass by 63%, 50%, 59% and 93%, respectively. Seed production per plant exceeded 21 469. According to the growth model, leaf number was the most consistent morphological trait and critical for timing weed control actions, so it was used to compare SRMs and ANNs. On average, ANNs increased the precision in 5.72% (± 2.4 leaves) compared to SRMs. This slight performance of ANNs may be valuable for controlling C. diluta because control methods must be applied at the 4-leaf stage to achieve good efficacy. CONCLUSION: Seed burial at 5 cm depth is an effective method reducing C. diluta emergence. ANNs accurately predicted the leaf number employing environmental variables can help increase the efficiency of C. diluta control actions and reduce the risk of escapes. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.


Asunto(s)
Germinación , Herbicidas , Humanos , Control de Malezas/métodos , Herbicidas/farmacología , Plantones , Biomasa
8.
Front Cardiovasc Med ; 10: 1242057, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38107264

RESUMEN

Background: The Heart Failure Somatic Perception Scale (HFSPS) is an instrument that examine the existence and gravity of physical signs and symptoms in patients with heart failure, as well as early and subtle symptoms of HF that have clinical value, we aimed to translate and adapt the HFSPS from English to Spanish and evaluate the psychometric properties. Method: HFSPS translation and back translation were carried out according to the method established by of Beaton et al. A confirmatory factor analysis (CFA) was performed to test the factor structures. To assess criterion-related validity, HFSPS factor scores were correlated with Kansas City Cardiomyopathy Questionnaire (KCCQ) scores using the Spearman correlation method. The reliability of the internal consistency of the HFSPS was determined by calculating the Cronbach's alpha coefficient and the factor score determination coefficient. Results: Data from 173 patients with a mean age of 80.7 years (SD 9.1), women (51.1%), were analyzed. The majority (74.7%) were NYHA class II/III. The confirmatory factor analysis of four factors after eliminating one item showed fit indices close to the recommended indices: χ2 = 169.237, p < 0.001, CFI = 0.920, TLI = 0.901, RMSEA = 0.057 and SRMR = 0.061. Regarding the validity related to the criterion, all the scores of the HFSPS dimensions were correlated with all the scores of the KCCQ dimensions and were statistically significant. The reliability of the HFSPS factors of the coefficient of determination obtained scores of 0.73 for the dyspnea factor and early and subtle and lower for edema and chest discomfort with fewer items. Cronbach's alpha was acceptable for three of the scales >0.71 and poor 0.52 for chest discomfort with two items. The internal consistency index based on the model was 0.850. Conclusion: The Spanish version of the HFSPS is a valid and reliable instrument that that would be feasible to use in clinical and research setting to evaluate in the perception of symptoms in patients with heart failure.

9.
Artículo en Inglés | MEDLINE | ID: mdl-37947569

RESUMEN

The cultivation of critical thinking and decision-making skills promotes student autonomy. Only a few instruments measure nursing students' autonomy, and the PALOP® Scale is one of them. This study aimed to semantically and culturally adapt the PALOP® Scale to European Portuguese and assess the psychometric properties of a short version. A methodological study was conducted with 530 second and fourth-year undergraduate nursing students. Content validity was assessed using exploratory and discriminant factor analysis, and reliability was determined through analyses of internal consistency, temporal stability, and floor and ceiling effects. The analysis of the psychometric properties of a short version of the PALOP®-PT Scale revealed complete agreement (100%) among panel members for content validity. The scale also showed discriminative capacity among second- and fourth-year students (t (528) = -7.907, p < 0.001) with a five-factor structure, with a total explained variance of 57.2%. Reliability analysis showed excellent internal consistency (α = 0.935) and moderate temporal stability (95% ICC (3.1) = 0.520 [0.290-0.693], p < 0.01). The short version of the PALOP®-PT Scale is a promising tool to assess nursing students' perceived autonomy and identify necessary adjustments to their professional identity.


Asunto(s)
Bachillerato en Enfermería , Estudiantes de Enfermería , Humanos , Reproducibilidad de los Resultados , Portugal , Encuestas y Cuestionarios , Psicometría
10.
Nurs Rep ; 13(4): 1624-1634, 2023 Nov 11.
Artículo en Inglés | MEDLINE | ID: mdl-37987413

RESUMEN

The barriers faced by people with intellectual disabilities are many. One of the areas in which many problems have been identified is the sexual domain. This descriptive study aims to analyze the attitudes of the family environment, professional carers, and the general population toward their sexuality. A cross-sectional descriptive study was carried out between 2022 and 2023, using convenience sampling among family members and carers from different centers working with people with intellectual disabilities in Spain, and among the general population not related to people with intellectual disabilities. A total of 583 responses were received and significant differences were found for all variables, with the variables related to family or work proximity being those that provided the most significant and relevant results. It was observed that the male sex has a more paternalistic attitude and that in rural areas there is a more permissive attitude towards the sexuality of people with intellectual disabilities. People who work with people with disabilities have more positive attitudes towards this group, while direct relatives have more paternalistic attitudes. Nursing care in the community and specialized centers should be based on an adequate therapeutic relationship and personalized care.

11.
SAGE Open Med ; 11: 20503121231201349, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37808511

RESUMEN

Introduction: Peripherally inserted central catheters (PICCs) are an effective tool as a medical device in patients who require them. However, it is a procedure that has been associated with multiple complications and possible negative outcomes for the health of the patients. This paper seeks to describe the main complications derived from the insertion and maintenance of peripherally inserted central venous catheters (PICCs), based on the experience of a vascular accesses group in a cardiovascular center in Colombia. Methods: A retrospective cross-sectional analytical study of the adult population undergoing PICC insertion at the Fundación Cardioinfantil-Instituto de Cardiología, during the period between 2019 and 2020 by the vascular access program, was performed. Results: The frequency of any registered complication was 15.9% for 2019 and 11.2% for 2020. Bleeding at the procedure site occurred in 15.3% during 2019 and 7.0% in 2020, making it the most frequent complication during the procedure. All the variables of complications associated with infection (bacteremia, phlebitis, and catheter-related infection) showed a decrease in 2020 compared to the previous year. The central line-associated bloodstream infection registered for the year 2019 was 1.94 bacteremia's/1000 catheters-day compared to 0.29 bacteremia's/1000 catheters-day. Conclusions: There has been a 4.7% reduction in the frequency of any registered complication after the implementation of the vascular access groups. Global and specific complications decreased significantly from 2019 to 2020. Notably, bacteremia, a common post-procedure complication, showed a substantial decrease in frequency compared to national and worldwide literature. It is also been described that complications associated with infection showed a decrease in 2020 compared to 2019. Whether or not all these findings are directly or somewhat related to the results stemming from the vascular access groups still needs further investigation.

12.
Eur Respir J ; 62(5)2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37827576

RESUMEN

BACKGROUND: Longitudinal cohort data of patients with tuberculosis (TB) and coronavirus disease 2019 (COVID-19) are lacking. In our global study, we describe long-term outcomes of patients affected by TB and COVID-19. METHODS: We collected data from 174 centres in 31 countries on all patients affected by COVID-19 and TB between 1 March 2020 and 30 September 2022. Patients were followed-up until cure, death or end of cohort time. All patients had TB and COVID-19; for analysis purposes, deaths were attributed to TB, COVID-19 or both. Survival analysis was performed using Cox proportional risk-regression models, and the log-rank test was used to compare survival and mortality attributed to TB, COVID-19 or both. RESULTS: Overall, 788 patients with COVID-19 and TB (active or sequelae) were recruited from 31 countries, and 10.8% (n=85) died during the observation period. Survival was significantly lower among patients whose death was attributed to TB and COVID-19 versus those dying because of either TB or COVID-19 alone (p<0.001). Significant adjusted risk factors for TB mortality were higher age (hazard ratio (HR) 1.05, 95% CI 1.03-1.07), HIV infection (HR 2.29, 95% CI 1.02-5.16) and invasive ventilation (HR 4.28, 95% CI 2.34-7.83). For COVID-19 mortality, the adjusted risks were higher age (HR 1.03, 95% CI 1.02-1.04), male sex (HR 2.21, 95% CI 1.24-3.91), oxygen requirement (HR 7.93, 95% CI 3.44-18.26) and invasive ventilation (HR 2.19, 95% CI 1.36-3.53). CONCLUSIONS: In our global cohort, death was the outcome in >10% of patients with TB and COVID-19. A range of demographic and clinical predictors are associated with adverse outcomes.


Asunto(s)
COVID-19 , Coinfección , Infecciones por VIH , Tuberculosis Miliar , Humanos , Masculino , COVID-19/complicaciones , Infecciones por VIH/complicaciones , Factores de Riesgo , Estudios Retrospectivos
13.
Artículo en Inglés | MEDLINE | ID: mdl-37678062

RESUMEN

The benefits of minimally-invasive surgeries have been documented, and they have been established as the preferred approach for gynecological surgeries. With the development of robotic surgery, many highly complex surgeries can benefit from these advantages. Due to the complexity of aortocaval lymphadenectomy, surgical technique protocols have been described to reduce risks by maximizing benefits. We describe the technique using five ports (4 robotic arms and an assistant) to work the upper abdominal field, and different instruments recommended in each of their positions to reduce errors and optimize surgical time. After the "step by step" description, we summarize indications of aortocaval lymphadenectomy for every gynecological cancer in different stages.


Asunto(s)
Neoplasias de los Genitales Femeninos , Laparoscopía , Procedimientos Quirúrgicos Robotizados , Femenino , Humanos , Procedimientos Quirúrgicos Robotizados/métodos , Escisión del Ganglio Linfático/métodos , Neoplasias de los Genitales Femeninos/cirugía , Procedimientos Quirúrgicos Ginecológicos/métodos , Procedimientos Quirúrgicos Mínimamente Invasivos , Laparoscopía/métodos
14.
Otol Neurotol ; 44(7): e486-e491, 2023 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-37400135

RESUMEN

OBJECTIVE: To develop a machine learning-based referral guideline for patients undergoing cochlear implant candidacy evaluation (CICE) and to compare with the widely used 60/60 guideline. STUDY DESIGN: Retrospective cohort. SETTING: Tertiary referral center. PATIENTS: 772 adults undergoing CICE from 2015 to 2020. INTERVENTIONS: Variables included demographics, unaided thresholds, and word recognition score. A random forest classification model was trained on patients undergoing CICE, and bootstrap cross-validation was used to assess the modeling approach's performance. MAIN OUTCOME MEASURES: The machine learning-based referral tool was evaluated against the 60/60 guideline based on ability to identify CI candidates under traditional and expanded criteria. RESULTS: Of 587 patients with complete data, 563 (96%) met candidacy at our center, and the 60/60 guideline identified 512 (87%) patients. In the random forest model, word recognition score; thresholds at 3000, 2000, and 125; and age at CICE had the largest impact on candidacy (mean decrease in Gini coefficient, 2.83, 1.60, 1.20, 1.17, and 1.16, respectively). The 60/60 guideline had a sensitivity of 0.91, a specificity of 0.42, and an accuracy of 0.89 (95% confidence interval, 0.86-0.91). The random forest model obtained higher sensitivity (0.96), specificity (1.00), and accuracy (0.96; 95% confidence interval, 0.95-0.98). Across 1,000 bootstrapped iterations, the model yielded a median sensitivity of 0.92 (interquartile range [IQR], 0.85-0.98), specificity of 1.00 (IQR, 0.88-1.00), accuracy of 0.93 (IQR, 0.85-0.97), and area under the curve of 0.96 (IQR, 0.93-0.98). CONCLUSIONS: A novel machine learning-based screening model is highly sensitive, specific, and accurate in predicting CI candidacy. Bootstrapping confirmed that this approach is potentially generalizable with consistent results.


Asunto(s)
Implantación Coclear , Implantes Cocleares , Adulto , Humanos , Estudios Retrospectivos , Implantación Coclear/métodos , Aprendizaje Automático , Selección de Paciente
15.
Pest Manag Sci ; 79(11): 4414-4422, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37401546

RESUMEN

BACKGROUND: The seedling stage is the most vulnerable period of growth and development for annual weeds and an important target for weed management operations. To address this, several weed emergence models have been developed, but none are commercially available. Therefore, this study aims to develop a web application that implements predictive weed emergence models for eight different weed species, utilizing weather data sourced from public weather stations. RESULTS: Lolium rigidum Gaudin presented a mean root mean squared error (RMSE) value of 8.9, achieving an RMSE value below 15 (success rate) in 84.5% of cases. This result may be attributed to the use of a water potential base, set at -0.4 MPa, to evaluate water availability. Centaurea diluta Aiton achieved an RMSE value below 15 in all situations, with an average value of 9.0. This weed showed higher accuracy at southern sites than northern sites. Conversely, Avena sterilis ssp. ludoviciana (Durieu) Gillet & Magne achieved higher precision at northern sites where no dry periods occurred. The newly developed model for Bromus diandrus Roth. achieved an average RMSE value of 7.7 and a 100% success rate. Papaver rhoeas L. and the three Phalaris species exhibited lower accuracy in this study than in previous ones. Nonetheless, the success rates for Papaver rhoeas and Phalaris paradoxa L. were still above 70%. CONCLUSION: Models for C. diluta, B. diandrus, L. rigidum, Papaver rhoeas and Phalaris paradoxa have demonstrated potential for adoption in commercial production, while Phalaris minor and Phalaris brachystachys models require refinement. © 2023 Society of Chemical Industry.

16.
Sci Total Environ ; 901: 165788, 2023 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-37524177

RESUMEN

Contamination with anthropogenic debris, such as plastic and paint particles, has been widely investigated in the global marine environment. However, there is a lack of information regarding their presence in marine protected areas (MPAs). In the present study, the abundance, distribution, and chemical characteristics of microplastics (MPs; <5 mm), mesoplastics (MePs; 5-25 mm), and paint particles were investigated in multiple environmental compartments of two MPAs from Peru. The characteristics of MPs across surface water, bottom sediments, and fish guts were similar, primarily dominated by blue fibers. On the other hand, MePs and large MPs (1-5 mm) were similar across sandy beaches. Several particles were composite materials consisting of multiple layers confirmed as alkyd resins by Fourier-transformed infrared spectroscopy, which were typical indicators of marine coatings. The microstructure of paint particles showed differentiated topography across layers, as well as different elemental compositions. Some layers displayed amorphous structures with Ba-, Cr-, and Ti-based additives. However, the leaching and impact of potentially toxic additives in paint particles require further investigation. The accumulation of multiple types of plastic and paint debris in MPAs could pose a threat to conservation goals. The current study contributed to the knowledge regarding anthropogenic debris contamination in MPAs and further elucidated the physical and chemical properties of paint particles in marine environments. While paint particles may look similar to MPs and MePs, more attention should be given to these contaminants in places where intense maritime activity takes place.

17.
Nutrients ; 15(11)2023 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-37299425

RESUMEN

N-acetylcysteine (NAC) is used as a sports supplement for its ability to modulate exercise-induced oxidative damage through its antioxidant actions and maintenance of glutathione homeostasis, positioning NAC as a strategy to improve physical performance. We aimed to evaluate the current evidence on the benefits of NAC supplementation on physical performance and laboratory biomarkers in adult men. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we systematically reviewed studies indexed in the Web of Science, Scopus, and PubMed to assess the effects of NAC on physical performance, laboratory biomarkers, and adverse effects in adult men. Original articles published up to 30 April 2023 with a controlled trial design comparing NAC supplementation with a control group were included. The modified McMaster Critical Review Form for Quantitative Studies was used as an assessment tool and the Cochrane Risk of Bias was applied. Of the 777 records identified in the search, 16 studies met the inclusion and exclusion criteria. Overall, most of the trials reported beneficial effects of NAC supplementation and no serious adverse events were reported. Participants supplemented with NAC showed significant improvements in exercise performance, antioxidant capacity, and glutathione homeostasis. However, there was no clear evidence of beneficial effects of NAC supplementation on haematological markers, inflammatory response, and muscle behaviour. NAC supplementation appears to be safe and may regulate glutathione homeostasis, have antioxidant effects, and improve exercise performance. However, further studies are needed to clarify the relevance of its use.


Asunto(s)
Acetilcisteína , Antioxidantes , Masculino , Adulto , Humanos , Acetilcisteína/farmacología , Suplementos Dietéticos , Glutatión , Rendimiento Físico Funcional , Biomarcadores , Ensayos Clínicos Controlados Aleatorios como Asunto
18.
Nurs Open ; 10(9): 5790-5796, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37232024

RESUMEN

AIM: To recognize, appraise and summarize the research evidence that has explored the results of pelvic floor muscle training on female sexual function. DESIGN: Systematic review and possible meta-analysis. METHODOLOGY: Between September and October 2022, the Cochrane Library, CINAHL, MEDLINE, EMBASE, PsycINFO and Scopus electronic databases will be searched. We will include RCT's in English, Spanish and Portuguese that investigate the results of pelvic floor muscle training on female sexual function. The data will be extracted by two researchers independently. Risk of bias will be measured from the Cochrane Risk of Bias Tool. The meta-analysis of the results will be performed using Comprehensive Meta-Analysis Version 2. RESULTS: This systematic review and possible meta-analysis will contribute significantly to the promotion of pelvic floor health and women's sexual function and to strengthen clinical practice and define other areas of study.


Asunto(s)
Diafragma Pélvico , Femenino , Humanos , Metaanálisis como Asunto , Diafragma Pélvico/fisiología , Revisiones Sistemáticas como Asunto
19.
Environ Sci Pollut Res Int ; 30(27): 71396-71408, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37199842

RESUMEN

Peru suffers from poor solid waste and coastal management, as well as evidenced plastic pollution in various forms. However, studies in Peru focusing on small plastic debris (i.e., meso- and microplastics) are still limited and inconclusive. Thus, the present study investigated the abundance, characteristics, seasonality, and distribution of small plastic debris along the coast of Peru. The abundance of small plastic debris is predominantly driven by specific locations, where a source of contamination is present, rather than presenting seasonal patterns. Meso- and microplastics were strongly correlated in both seasons (summer and winter), suggesting meso-plastic constantly breaking down as microplastic sources. Additionally, heavy metals (e.g., Cu, Pb) were found in low concentrations (mean concentrations < 0.4%) on the surface of some mesoplastics. Here, we provided a baseline on the multiple factors involving small plastic debris on the Peruvian coast and preliminarily identify associated contaminants.


Asunto(s)
Microplásticos , Contaminantes Químicos del Agua , Plásticos , Perú , Residuos/análisis , Monitoreo del Ambiente , Residuos Sólidos , Contaminantes Químicos del Agua/análisis
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...