Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 460
Filter
1.
Front Immunol ; 15: 1441908, 2024.
Article in English | MEDLINE | ID: mdl-39224597

ABSTRACT

Introduction: The antiviral activity of recombinant bovine interferon lambda 3 (bovIFN-λ3) against bovine viral diarrhea virus (BVDV) has been demonstrated in vitro in Madin-Darby bovine kidney cells (MDBK) and in vivo in cattle. However, anti-BVDV activity of bovIFN-λ3 has not been studied in bovine respiratory tract epithelial cells, supposedly a primary target of BVDV infection when entering the host by the oronasal route. Methods: Here we investigated the anti-BVDV activity of bovIFN-λ3 in bovine turbinate-derived primary epithelial cells (BTu) using BVDV infection and immunoperoxidase staining, TCID50, RT-qPCR, DNA and transcriptome sequencing, and transfection with plasmids containing the two subunits, IL-28Rα and IL-10Rß that constitute the bovIFN-λ3 receptor. Results: Our immunoperoxidase staining, RT-qPCR, and TCID50 results show that while BVDV was successfully cleared in MDBK cells treated with bovIFN-λ3 and bovIFN-α, only the latter, bovIFN-α, cleared BVDV in BTu cells. Preincubation of MDBK cells with bovIFN-λ3 before BVDV infection was needed to induce optimal antiviral state. Both cell types displayed intact type I and III IFN signaling pathways and expressed similar levels of IL-10Rß subunit of the type III IFN receptor. Sequencing of PCR amplicon of the IL-28Rα subunit revealed intact transmembrane domain and lack of single nucleotide polymorphisms (SNPs) in BTu cells. However, RT-qPCR and transcriptomic analyses showed a lower expression of IL-28Rα transcripts in BTu cells as compared to MDBK cells. Interestingly, transfection of BTu cells with a plasmid encoding IL-28Rα subunit, but not IL-10Rß subunit, established the bovIFN-λ3 sensitivity showing similar anti-BVDV activity to the response in MDBK cells. Conclusion: Our results demonstrate that the sensitivity of cells to bovIFN-λ3 depends not only on the quality but also of the quantity of the IL-28Rα subunit of the heterodimeric receptor. A reduction in IL-28Rα transcript expression was detected in BTu as compared to MDBK cells, despite the absence of spliced variants or SNPs. The establishment of bovIFN-λ3 induced anti-BVDV activity in BTu cells transfected with an IL-28Rα plasmid suggests that the level of expression of this receptor subunit is crucial for the specific antiviral activity of type III IFN in these cells.


Subject(s)
Interferon Lambda , Interferons , Turbinates , Animals , Cattle , Interferons/metabolism , Interferons/immunology , Turbinates/virology , Turbinates/immunology , Turbinates/metabolism , Antiviral Agents/pharmacology , Diarrhea Viruses, Bovine Viral/immunology , Diarrhea Viruses, Bovine Viral/physiology , Receptors, Interleukin/genetics , Receptors, Interleukin/metabolism , Epithelial Cells/virology , Epithelial Cells/immunology , Epithelial Cells/metabolism , Interleukins/genetics , Interleukins/pharmacology , Interleukins/immunology , Interleukins/metabolism , Cell Line , Bovine Virus Diarrhea-Mucosal Disease/immunology , Bovine Virus Diarrhea-Mucosal Disease/virology , Recombinant Proteins/pharmacology , Interleukin-10 Receptor beta Subunit/genetics , Interleukin-10 Receptor beta Subunit/metabolism , Receptors, Cytokine
2.
Asian J Androl ; 2024 Aug 13.
Article in English | MEDLINE | ID: mdl-39136628

ABSTRACT

Depression currently affects about 280 million people worldwide and its prevalence has been increasing dramatically, especially among the young and people of reproductive age, which consequently leads to an increase in antidepressant consumption. Antidepressants are associated with sexual dysfunction in both men and women; however, their role in male fertility has been scarcely studied. Fluoxetine and sertraline, two serotonin reuptake inhibitors (SSRIs), are among the most prescribed antidepressants worldwide. To determine their possible effects, human sperm cells were exposed to either sertraline or fluoxetine at concentrations previously found in blood and seminal fluid of patients undergoing treatment. Spermatozoa were incubated for up to 24 h at 37°C and 5% CO2, and important functional parameters such as sperm motility, viability, mitochondrial membrane potential, cellular reactive oxygen species (ROS) production, chromatin/DNA integrity, acrosome status, and tyrosine phosphorylation were assessed. At low levels, fluoxetine consistently decreased progressive motility throughout time while promoting fluctuations in ROS levels and sperm capacitation. Nevertheless, it did not affect viability, mitochondrial membrane potential, acrosome reaction nor chromatin/DNA integrity. Sertraline, on the other hand, had little to nonsignificant impact at low doses, but affected almost all tested parameters at supratherapeutic concentrations. Altogether, our results suggest that both antidepressants may impair sperm function, possibly through different mechanisms of action, but fluoxetine is the only exhibiting mild negative effects at doses found in vivo.

3.
J Assist Reprod Genet ; 41(8): 1997-2009, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38822989

ABSTRACT

PURPOSE: There are no clinical treatments to prevent/revert age-related alterations associated with oocyte competence decline in the context of advanced maternal age. Those alterations have been attributed to oxidative stress and mitochondrial dysfunction. Our study aimed to test the hypothesis that in vitro maturation (IVM) medium supplementation with antioxidants (resveratrol or phloretin) may revert age-related oocyte competence decline. METHODS: Bovine immature oocytes were matured in vitro for 23 h (young) and 30 h (aged). Postovulatory aged oocytes (control group) and embryos obtained after fertilization were examined and compared with oocytes supplemented with either 2 µM of resveratrol or 6 µM phloretin (treatment groups) during IVM. RESULTS: Aged oocytes had a significantly lower mitochondrial mass and proportion of mitochondrial clustered pattern, lower ooplasmic volume, higher ROS, lower sirtuin-1 protein level, and a lower blastocyst rate in comparison to young oocytes, indicating that postovulatory oocytes have a lower quality and developmental competence, thus validating our experimental model. Supplementation of IVM medium with antioxidants prevented the generation of ROS and restored the active mitochondrial mass and pattern characteristic of younger oocytes. Moreover, sirtuin-1 protein levels were also restored but only following incubation with resveratrol. Despite these findings, the blastocyst rate of treatment groups was not significantly different from the control group, indicating that resveratrol and phloretin could not restore the oocyte competence of postovulatory aged oocytes. CONCLUSION: Resveratrol and phloretin can both revert the age-related oxidative stress and mitochondrial dysfunction during postovulatory aging but were insufficient to enhance embryo developmental rates under our experimental conditions.


Subject(s)
Antioxidants , Embryonic Development , Fertilization in Vitro , In Vitro Oocyte Maturation Techniques , Oocytes , Oxidative Stress , Animals , Oocytes/drug effects , Oocytes/growth & development , Cattle , Female , Embryonic Development/drug effects , In Vitro Oocyte Maturation Techniques/methods , Oxidative Stress/drug effects , Antioxidants/pharmacology , Fertilization in Vitro/methods , Ovulation/drug effects , Blastocyst/drug effects , Blastocyst/metabolism , Mitochondria/drug effects , Mitochondria/metabolism , Aging/drug effects , Reactive Oxygen Species/metabolism , Resveratrol/pharmacology
4.
Aten. prim. (Barc., Ed. impr.) ; 56(5)may. 2024. tab, graf
Article in Spanish | IBECS | ID: ibc-CR-343

ABSTRACT

Objetivo Analizar las líneas de acción propuestas por los proyectos de promoción de la salud participantes en el proyecto de investigación EvaluAGPS, y su relación con las puntuaciones obtenidas con EvalGuía, una herramienta para evaluar la participación comunitaria basada en la evidencia. Diseño Estudio multicéntrico cuali-cuantitativo. Emplazamiento Proyectos de atención primaria o de red intersectorial de atención primaria y municipalidades de 5 comunidades autónomas en España. Participantes Personas que trabajan en 10 proyectos de promoción de la salud, seleccionados con muestreo intencional según criterios de inclusión (proyectos con un mínimo de participación comunitaria centrados en la salud comunitaria). Método Se recogieron los datos mediante cuestionarios (herramienta EvalGuía) y talleres participativos. Los datos cuantitativos se analizaron con estadística descriptiva, los datos cualitativos se analizaron utilizando el análisis de matriz. Resultados Tras pasar la herramienta EvalGuía, las puntuaciones más bajas estaban en la evaluación de resultados, conocimiento de leyes relacionadas con participación comunitaria, diversidad en el grupo motor, medidas de conciliación, recursos financieros y devolución de resultados. Las líneas de acción planteadas eran heterogéneas y no siempre coinciden con las priorizadas. Las líneas priorizadas giraban en torno a la organización del proyecto y a la comunicación. Conclusiones La herramienta EvalGuía puede ser útil para diseñar planes de acción en proyectos de promoción de la salud. La implementación de medidas en 12 meses para aumentar la diversidad del grupo motor, incorporar medidas de conciliación o mejorar la evaluación es difícil. Se requiere más tiempo para implementar este tipo de medidas. (AU)


Objective To analyse the lines of action identified in the health promotion projects participating in the EvaluA GPS research, and their relationship with the scores assigned in EvalGuia, a tool for evaluating evidence-based community participation. Design Qualitative-quantitative multicentre study. Setting Primary care or intersectoral network of primary care and municipalities in five autonomous communities in Spain. Participants Participants of 10 health promotion projects, selected with convenience sampling, following inclusion criteria (projects with a minimum of community engagement and centred on community health). Method Data were collected through questionnaires (EvalGuía tool) and participatory workshops. Quantitative data were analysed with descriptive statistics, qualitative data were analysed using matrix analysis. Results After implementing the EvalGuide tool, the lowest scores were assigned in outcome evaluation, knowledge of policies related to community participation, diversity in the core working group, inclusivity policies, financial resources and diffusion of results. The lines of action proposed were heterogeneous and did not always match with those prioritised as lower score. The prioritised lines revolved around project organisation and communication. Conclusions The EvalGuide tool can be helpful to design action plans in Health Promotion projects. The implementation of measures in 12 months to increase the diversity of the core working group, to incorporate work–life balance measures or to improve evaluation is difficult. More time is needed to implement such measures. (AU)


Subject(s)
Humans , Health Promotion/methods , Health Promotion/standards , Public Health , Primary Health Care , Surveys and Questionnaires , Spain
5.
Front Oncol ; 14: 1395966, 2024.
Article in English | MEDLINE | ID: mdl-38807764

ABSTRACT

Introduction: The effectiveness of the supplementation of prebiotics, probiotics and synbiotics as a therapeutic approach in colorectal cancer (CRC) remains unclear. The aim of this systematic review is to critically examine the current scientific evidence on the impact of modulating the microbiota, through the use of prebiotics, probiotics and synbiotics, in patients diagnosed with CRC undergoing treatment, to determine the potential therapeutic use of this approach. Methods: This systematic review was made according to the PRISMA 2020 guidelines. Inclusion criteria were randomized controlled trials (RCT) comparing the impact of pre-, pro-, or synbiotic supplementation with placebo or standard care in patients with CRC undergoing treatment. Exclusion criteria were non-human studies, non-RCTs, and studies in languages other than English or Portuguese. Six databases were consulted, namely, Cochrane Library, Pubmed, Scopus, Cinahl, MedicLatina and Web of Science until May of 2023. RAYYAN software was used to manage the search results and risk of bias was assessed according to the guidelines of the Cochrane Collaboration using the Rob 2.0 tool. Results: Twenty-four RCTs met the inclusion criteria and were included in this review. Administration of pre-, pro-, or synbiotics improved surgical outcomes such as the incidence of infectious and non-infectious postoperative complications, return to normal gut function, hospital length of stay, and antibiotic usage. The supplementation of these microorganisms also alleviated some symptoms from chemotherapy and radiotherapy, mainly diarrhea. Evidence on the best approach in terms of types of strains, dosage and duration of intervention is still scarce. Conclusions: Pre-, pro-, and synbiotics supplementation appears to be a beneficial therapeutic approach in CRC treatment to improve surgical outcomes and to alleviate side-effects such as treatment toxicity. More RCTs with larger sample sizes and less heterogeneity are needed to confirm these potential benefits and to determine the best strains, dosage, and duration of administration in each situation. Systematic review registration: https://www.crd.york.ac.uk/prospero, identifier CRD42023413958.

6.
Sci Total Environ ; 935: 173334, 2024 Jul 20.
Article in English | MEDLINE | ID: mdl-38763191

ABSTRACT

Electronic and electric waste (e-waste) management strategies often fall short in dealing with the plastic constituents of printed circuit boards (PCB). Some plastic materials from PCB, such as epoxy resins, may release contaminants, but neither potential environmental impact has been assessed nor mitigation strategies have been put forward. This study assessed the biodegradation of microplastics (1-2 mm in size) from PCB by the fungus Penicillium brevicompactum over 28 days, thus contributing to the discussion of mitigation strategies for decreasing the environmental impact of such plastics in the environment. The capacity of P. brevicompactum to induce microplastic fragmentation and degradation has been determined by the increased the number of smaller-sized particles and microplastic mass reduction (up to 75 % within 14 days), respectively. The occurrence of chain scission and oxidation of microplastics exposed to P. brevicompactum when compared with the control conditions (which occurred only after 28 days of exposure) can be observed. Furthermore, Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy performed in dried biomass put in evidence an increase in the absorption intensities in regions that could be attributed to functional groups associated with carbohydrates. The results underline the potential role of the genus Penicillium, particularly P. brevicompactum, in the biodegradation of microplastics from PCB, thus providing the basis for further exploration of its potential for e-waste bioremediation and research on the underlying mechanisms for sustainable approaches to mitigate e-waste pollution.


Subject(s)
Biodegradation, Environmental , Electronic Waste , Microplastics , Penicillium , Penicillium/metabolism , Microplastics/metabolism
7.
Palliat Support Care ; : 1-5, 2024 May 06.
Article in English | MEDLINE | ID: mdl-38706299

ABSTRACT

OBJECTIVES: Ketamine has been widely used in refractory pain as an opioid adjuvant. Evidence suggests that ketamine can also have an essential role in easing depressive symptoms. Its rapid onset of action makes it a valuable choice in palliative care. METHODS: We present a case of a 70-year-old man with stage IV renal carcinoma and bone metastasis. The main symptoms included neuropathic pain, depression, and a persistent and severe desire for death. RESULTS: We started continuous subcutaneous infusion with morphine 30 mg and ketamine 100 mg/day. The dose of ketamine was incremented to the maximum of 250 mg/day. During the 28-day treatment, we observed an overall improvement in neuropathic pain, depressive symptoms, and other end-of-life psychological aspects of distress. Only minor psychological side effects were identified, which were controlled by using midazolam in the continuous subcutaneous infusion. SIGNIFICANCE OF RESULTS: Some studies have already demonstrated the benefits of ketamine use in alleviating depression, using parental infusion or oral formulas, which are administered in hospice care. Our report enhances the benefit of the subcutaneous route for palliative patients cared for at home.

8.
Front Microbiol ; 15: 1360397, 2024.
Article in English | MEDLINE | ID: mdl-38638908

ABSTRACT

Foot-and-mouth disease (FMD) is a vesicular disease of cloven-hoofed animals with devastating economic implications. The current FMD vaccine, routinely used in enzootic countries, requires at least 7 days to induce protection. However, FMD vaccination is typically not recommended for use in non-enzootic areas, underscoring the need to develop new fast-acting therapies for FMD control during outbreaks. Interferons (IFNs) are among the immune system's first line of defense against viral infections. Bovine type III IFN delivered by a replication defective adenovirus (Ad) vector has effectively blocked FMD in cattle. However, the limited duration of protection-usually only 1-3 days post-treatment (dpt)-diminishes its utility as a field therapeutic. Here, we test whether polyethylene glycosylation (PEGylation) of recombinant bovine IFNλ3 (PEGboIFNλ3) can extend the duration of IFN-induced prevention of FMDV infection in both vaccinated and unvaccinated cattle. We treated groups of heifers with PEGboIFNλ3 alone or in combination with an adenovirus-based FMD O1Manisa vaccine (Adt-O1M) at either 3 or 5 days prior to challenge with homologous wild type FMDV. We found that pre-treatment with PEGboIFNλ3 was highly effective at preventing clinical FMD when administered at either time point, with or without co-administration of Adt-O1M vaccine. PEGboIFNλ3 protein was detectable systemically for >10 days and antiviral activity for 4 days following administration. Furthermore, in combination with Adt-O1M vaccine, we observed a strong induction of FMDV-specific IFNγ+ T cell response, demonstrating its adjuvanticity when co-administered with a vaccine. Our results demonstrate the promise of this modified IFN as a pre-exposure prophylactic therapy for use in emergency outbreak scenarios.

9.
Biomolecules ; 14(3)2024 Feb 26.
Article in English | MEDLINE | ID: mdl-38540702

ABSTRACT

Age-related changes in the mitochondrial status of human cumulus cells (hCCs) impact oocyte quality; however, the relationship between hCC mitochondrial (dys)function and reproductive aging remains poorly understood. This study aimed to establish the interplay between hCC mitochondrial dysfunction and women's reproductive potential. In this investigation, 266 women were enrolled and categorized into two groups based on their age: a young group (<35 years old) and an advanced maternal age (AMA) group (≥35 years old). Comprehensive analysis of reproductive outcomes was conducted in our population. Various mitochondrial-related parameters were analyzed across distinct subsets. Specifically, mitochondrial membrane potential (∆Ψm) and mitochondrial mass were examined in 53 samples, mtDNA content in 25 samples, protein levels in 23 samples, bioenergetic profiles using an XF24 Extracellular Flux Analyzer in 6 samples, and levels of reactive oxygen species (ROS) and adenosine triphosphate (ATP) in 39 and 43 samples, respectively. In our study, the reproductive potential of AMA women sharply decreased, as expected. Additionally, an impairment in the mitochondrial function of hCCs in older women was observed; however, no differences were found in terms of mitochondrial content. Regarding oxidative phosphorylation, metabolic profiling of hCCs from AMA women indicated a decrease in respiratory capacity, which was correlated with an age-dependent decrease in the ATP synthase (ATP5A1) protein level. However, intracellular ROS and ATP levels did not differ between groups. In conclusion, our study indicates that age-related dysfunction in hCCs is associated with impaired mitochondrial function, and, although further studies are required, ATP synthase could be relevant in this impairment.


Subject(s)
Cumulus Cells , Mitochondrial Diseases , Humans , Female , Aged , Adult , Cumulus Cells/metabolism , Adenosine Triphosphate/metabolism , Reactive Oxygen Species/metabolism , Mitochondria/metabolism
10.
Rev Lat Am Enfermagem ; 32: e4101, 2024.
Article in English, Spanish, Portuguese | MEDLINE | ID: mdl-38511731

ABSTRACT

OBJECTIVE: to analyze the effects of a Mindfulness-based intervention on nurse leaders' emotional intelligence and resilience. METHOD: a pilot study of a randomized crossover clinical trial. The sample (n=32) was randomized into Group A (n=18) and Group B (n=14) and evaluated at the pre-test, post-test and follow-up moments. The outcomes were assessed using the Emotional Intelligence Measure, the Connor-Davidson Resilience Questionnaire and the Five Facet Mindfulness Questionnaire, and analyzed using Generalized Linear Mixed Models. RESULTS: a total of 32 nurses with a mean age of 42.6 years old were evaluated. The analyses showed significant interactions between the effects of the group x moment factors on the Self-motivation (p=0.005), Sociability (p<0.001), Self-control (p=0.013), and Total (p=0.002) emotional intelligence skill scores; as well as on the Observe (p=0.042), Describe (p=0.008), Non-judgment (p<0.001), Act with awareness (p=0.004) and Total (p<0.001) mindfulness facets. Post-test: there was a statistically significant increase in the Sociability (p=0.009) and Self-control (p=0.015) emotional intelligence skills; as well as in the Non-judgment (p=0.022) and Total (p=0.002) mindfulness facets. Follow-up: a significant increase was observed in the Non-judgment (p=0.024) and Total (p=0.026) mindfulness facets. The "resilience" variable did not present statistical significance in the "group x moment" factor, both in the post-test and during follow-up. CONCLUSION: the Mindfulness-based intervention used proved to be effective in increasing nurse leaders' emotional intelligence and dispositional mindfulness skills. Brazilian Registry of Clinical Trials (RBR-3c62gy), registered on March 4 th , 2020, updated on September 16 th , 2022. BACKGROUND: (1) Unpublished study of a Mindfulness-based intervention with nurse leaders. BACKGROUND: (2) Positive effect on the participants' emotional intelligence and mindfulness. BACKGROUND: (3) Advances in knowledge about emotional intelligence and leadership resilience. BACKGROUND: (4) It encourages the implementation of sensitive and innovative health strategies.


Subject(s)
Mindfulness , Resilience, Psychological , Adult , Humans , Emotional Intelligence , Leadership , Pilot Projects , Cross-Over Studies
11.
Bioengineering (Basel) ; 11(3)2024 Feb 23.
Article in English | MEDLINE | ID: mdl-38534483

ABSTRACT

Platelet-rich plasma (PRP) has emerged as a promising therapy in regenerative medicine. However, the lack of standardization in PRP preparation protocols presents a challenge in achieving reproducible and accurate results. This study aimed to optimize the PRP preparation protocol by investigating the impact of two different anticoagulants, sodium citrate (SC) and ethylenediaminetetraacetic acid (EDTA), and resuspension media, plasma versus sodium chloride (NaCl). Platelet recovery rates were calculated and compared between groups, in addition to platelet activity and vascular endothelial growth factor (VEGF) released into plasma after PRP activation. The platelet recovery rate was higher with EDTA in comparison to SC (51.04% vs. 29.85%, p = 0.005). Platelet activity was also higher, with a higher expression of two platelet antibodies, platelet surface P-Selectin (CD62p) and PAC-1, in the EDTA group. The concentration of VEGF was higher with SC in comparison to EDTA (628.73 vs. 265.44 pg/mL, p = 0.013). Platelet recovery rates and VEGF levels were higher in PRP resuspended in plasma when compared to NaCl (61.60% vs. 48.61%, p = 0.011 and 363.32 vs. 159.83 pg/mL, p = 0.005, respectively). Our study reinforces the superiority of EDTA (as anticoagulant) and plasma (for resuspension) in obtaining a higher platelet recovery and preserving platelet functionality during PRP preparation.

12.
Aten Primaria ; 56(5): 102847, 2024 May.
Article in Spanish | MEDLINE | ID: mdl-38218119

ABSTRACT

OBJECTIVE: To analyse the lines of action identified in the health promotion projects participating in the EvaluA GPS research, and their relationship with the scores assigned in EvalGuia, a tool for evaluating evidence-based community participation. DESIGN: Qualitative-quantitative multicentre study. SETTING: Primary care or intersectoral network of primary care and municipalities in five autonomous communities in Spain. PARTICIPANTS: Participants of 10 health promotion projects, selected with convenience sampling, following inclusion criteria (projects with a minimum of community engagement and centred on community health). METHOD: Data were collected through questionnaires (EvalGuía tool) and participatory workshops. Quantitative data were analysed with descriptive statistics, qualitative data were analysed using matrix analysis. RESULTS: After implementing the EvalGuide tool, the lowest scores were assigned in outcome evaluation, knowledge of policies related to community participation, diversity in the core working group, inclusivity policies, financial resources and diffusion of results. The lines of action proposed were heterogeneous and did not always match with those prioritised as lower score. The prioritised lines revolved around project organisation and communication. CONCLUSIONS: The EvalGuide tool can be helpful to design action plans in Health Promotion projects. The implementation of measures in 12 months to increase the diversity of the core working group, to incorporate work-life balance measures or to improve evaluation is difficult. More time is needed to implement such measures.


Subject(s)
Community Participation , Health Promotion , Humans , Health Promotion/methods , Health Promotion/organization & administration , Spain , Primary Health Care/organization & administration , Surveys and Questionnaires
13.
Molecules ; 29(2)2024 Jan 09.
Article in English | MEDLINE | ID: mdl-38257246

ABSTRACT

Although the impacts of plastic pollution have long been recognized, the presence, pervasiveness, and ecotoxicological consequences of microplastic-i.e., plastic particles < 5 mm-contamination have only been explored over the last decade. Far less focus has been attributed to the role of these materials and, particularly, microplastics, as vectors for a multitude of chemicals, including those (un)intentionally added to plastic products, but also organic pollutants already present in the environment. Owing to the ubiquitous presence of microplastics in all environmental matrices and to the diverse nature of their chemical and physical characteristics, thoroughly understanding the mechanistic uptake/release of these compounds is inherently complex, but necessary in order to better assess the potential impacts of both microplastics and associated chemicals on the environment. Herein, we delve into the known processes and factors affecting these mechanisms. We center the discussion on microplastics and discuss some of the most prominent ecological implications of the sorption of this multitude of chemicals. Moreover, the key limitations of the currently available literature are described and a prospective outlook for the future research on the topic is presented.

14.
Int J Surg Case Rep ; 114: 109095, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38035865

ABSTRACT

INTRODUCTION AND IMPORTANCE: Gastric volvulus is a rare clinical entity which occurs due to the rotation of the stomach and can have life-threatening complications. This condition can have an acute or chronic presentation and its symptoms will vary according to the degree of obstruction and rapidity of onset. CASE PRESENTATION: We report a case of a 84-year-old male with history of frequent periods of constipation and lack of appetite who presented to the emergency room with left-sided abdominal pain and distension and persistent nausea, without the ability to vomit. Abdominal radiograph, computed tomography scan of the abdomen, contrast-enhanced examination and upper endoscopy were consistent with a gastric volvulus secondary to diaphragmatic eventration. The patient's symptoms resolved after nasogastric tube placement and fluid resuscitation. However, he was proposed to a laparoscopic anterior gastropexy to prevent symptom recurrence. He remains asymptomatic after 3 years of follow-up. CLINICAL DISCUSSION: The diagnosis of gastric volvulus is based mainly on clinical presentation and abdominal imaging. The main principles of surgical intervention include stomach decompression with volvulus reduction, followed by gastropexy and correction of any predisposing intra-abdominal factors. CONCLUSION: Definitive treatment of both acute and chronic gastric volvulus includes a surgical approach. Laparoscopic anterior gastropexy has been found to be a viable alternative in these patients.

15.
Rev. latinoam. enferm. (Online) ; 32: e4101, 2024. tab, graf
Article in English | LILACS, BDENF - Nursing | ID: biblio-1550983

ABSTRACT

Objective: to analyze the effects of a Mindfulness-based intervention on nurse leaders' emotional intelligence and resilience. Method: a pilot study of a randomized crossover clinical trial. The sample (n=32) was randomized into Group A (n=18) and Group B (n=14) and evaluated at the pre-test, post-test and follow-up moments. The outcomes were assessed using the Emotional Intelligence Measure, the Connor-Davidson Resilience Questionnaire and the Five Facet Mindfulness Questionnaire, and analyzed using Generalized Linear Mixed Models. Results: a total of 32 nurses with a mean age of 42.6 years old were evaluated. The analyses showed significant interactions between the effects of the group x moment factors on the Self-motivation (p=0.005), Sociability (p<0.001), Self-control (p=0.013), and Total (p=0.002) emotional intelligence skill scores; as well as on the Observe (p=0.042), Describe (p=0.008), Non-judgment (p<0.001), Act with awareness (p=0.004) and Total (p<0.001) mindfulness facets. Post-test: there was a statistically significant increase in the Sociability (p=0.009) and Self-control (p=0.015) emotional intelligence skills; as well as in the Non-judgment (p=0.022) and Total (p=0.002) mindfulness facets. Follow-up: a significant increase was observed in the Non-judgment (p=0.024) and Total (p=0.026) mindfulness facets. The "resilience" variable did not present statistical significance in the "group x moment" factor, both in the post-test and during follow-up. Conclusion: the Mindfulness-based intervention used proved to be effective in increasing nurse leaders' emotional intelligence and dispositional mindfulness skills. Brazilian Registry of Clinical Trials (RBR-3c62gy), registered on March 4 th , 2020, updated on September 16 th , 2022.


Objetivo: analizar los efectos de una intervención basada en mindfulness sobre la inteligencia emocional y la resiliencia de enfermeros líderes. Método: estudio piloto de un ensayo clínico aleatorizado cruzado. Muestra (n=32) aleatorizada en el grupo A (n=18) y grupo B (n=14), se los evaluó en el pretest, postest y seguimiento. Los resultados fueron evaluados mediante la Medida de Inteligencia Emocional, el Cuestionario de Resiliencia de Connor-Davidson y el Cuestionario Mindfulness de Cinco Facetas, y analizados por el Generalized Linear Mixed Models . Resultados: fueron evaluadas 32 enfermeras con una edad promedio de 42,6 años. Los análisis mostraron interacciones significativas de los efectos de los factores grupo vs. momento en los puntajes de las habilidades de automotivación (p=0,005), sociabilidad (p<0,001), autocontrol (p=0,013) y total (p=0,002) de inteligencia emocional; de las facetas observar (p=0,042), describir (p=0,008), no juzgar (p<0,001), actuar con conciencia (p=0,004) y total (p<0,001) de mindfulness. Postest: hubo un aumento estadísticamente significativo de las habilidades de sociabilidad (p=0,009) y autocontrol (p=0,015) de inteligencia emocional; de las facetas no juzgar (p=0,022) y total (p=0,002) de mindfulness . Seguimiento: se observó un aumento significativo en las facetas no juzgar (p=0,024) y total (p=0,026) de mindfulness . La variable resiliencia no presentó significación estadística en el factor grupo vs. momento en el postest y seguimiento. Conclusión: la intervención basada en mindfulness utilizada demostró ser eficaz para aumentar la inteligencia emocional y las habilidades de mindfulness disposicional de los enfermeros líderes. Registro Brasileño de Ensayos Clínicos (RBR-3c62gy), registrado el 4 de marzo de 2020, actualizado el 16 de septiembre de 2022.


Objetivo: analisar os efeitos de uma intervenção baseada em mindfulness na inteligência emocional e resiliência de enfermeiros líderes. Método: estudo-piloto de ensaio clínico randomizado cruzado. Amostra (n=32) randomizada em grupo A (n=18) e grupo B (n=14), avaliados nos momentos pré-teste, pós-teste e seguimento. Os desfechos foram avaliados pela Medida de Inteligência Emocional, pelo Questionário de Resiliência Connor-Davidson e pelo Questionário das Cinco Facetas de Mindfulness , e analisados pelo Generalized Linear Mixed Model . Resultados: foram avaliadas 32 enfermeiras com idade média de 42,6 anos. As análises mostraram interações significativas dos efeitos dos fatores Grupo x Momento nos escores das habilidades de automotivação (p=0,005), sociabilidade (p<0,001), autocontrole (p=0,013) e total (p=0,002) de inteligência emocional; das facetas observar (p=0,042), descrever (p=0,008), não julgar (p<0,001), agir com consciência (p=0,004) e total (p<0,001) de mindfulness . Pós-teste: houve aumento estatisticamente significante das habilidades de sociabilidade (p=0,009) e autocontrole (p=0,015) de inteligência emocional; das facetas não julgar (p=0,022) e total (p=0,002) de mindfulness . Seguimento: observou-se aumento significativo das facetas não julgar (p=0,024) e total (p=0,026) de mindfulness . A variável resiliência não apresentou significância estatística no fator Grupo x Momento, no pós-teste e seguimento. Conclusão: a intervenção baseada em mindfulness utilizada mostrou-se efetiva no aumento das habilidades de inteligência emocional e mindfulness disposicional de enfermeiros líderes. Registro Brasileiro de Ensaios Clínicos (RBR-3c62gy), registrado em 04 de março de 2020, atualizado em 16 de setembro de 2022.


Subject(s)
Humans , Nursing , Clinical Trial , Resilience, Psychological , Emotional Intelligence , Mindfulness , Leadership
16.
Sci Total Environ ; 912: 169287, 2024 Feb 20.
Article in English | MEDLINE | ID: mdl-38103621

ABSTRACT

The application of bio-based biodegradable mulch films in agriculture has raised environmental concerns regarding their potential impacts on adjacent freshwater ecosystems. This study investigated the biodegradation of microplastics derived from a bio-based biodegradable mulch (bio-MPs) and its acute and chronic ecotoxicity considering relevant scenarios (up to 200 and 250 mg/kg of sediment, using pristine and/or UV-aged particles), using the fungus Penicillium brevicompactum and the dipteran Chironomus riparius as model organisms, respectively, due to their ecological relevance in freshwater environments. Fourier-transform infrared spectroscopy analysis suggested changes in the fungus's carbohydrate reserves and bio-MP degradation through the appearance of low molecular weight esters throughout a 28 day biodegradation test. In a short-term exposure (48 h), C. riparius larvae exposed to pristine or UV-aged bio-MPs had up to 2 particles in their gut. Exposure to pristine bio-MPs decreased larval aerobic metabolism (<20 %) and increased neurotransmission (>15 %), whereas exposure to UV-aged bio-MPs activated larval aerobic metabolism (>20 %) and increased antioxidant defences (catalase activity by >30 % and glutathione-s-transferase by >20 %) and neurotransmission (>30 %). Longer-term (28-d) exposure to UV-aged bio-MPs did not affect larval survival and growth nor the dipteran's emergence but increased male numbers (>30 %) at higher concentrations. This study suggests that the selected agricultural bio-based mulch film is prone to biodegradation by a naturally occurring fungus. However, there is a potential for endocrine disruption in the case of prolonged exposures to UV-aged microplastics. This study emphasises the importance of further research to elucidate the potential ecological effects of these plastic products, to ensure effective management practices, and to establish new regulations governing their use.


Subject(s)
Microplastics , Water Pollutants, Chemical , Animals , Male , Microplastics/toxicity , Plastics/toxicity , Ecosystem , Water Pollutants, Chemical/toxicity , Water Pollutants, Chemical/analysis , Agriculture , Larva , Fresh Water
17.
Heliyon ; 9(11): e21758, 2023 Nov.
Article in English | MEDLINE | ID: mdl-38053875

ABSTRACT

Environmental sustainability is an imperative topic in contemporary business-related research, aiming to understand and predict how individuals' environmentally friendly behaviors can be encouraged. This research aims to empirically examine the relationship between individuals' pro-environmental attitude and pro-environmental behavior; and to compare two groups of individuals that encompass emotional and cognitive links to environmental sustainability: emotionally involved sport fans and socially conscious university students. Two studies, involving more than 1400 respondents, were conducted. Study 1 uses structural equation modelling (SEM) to test the relationship between consumers' environmental attitudes and environmental behaviors. Study 2 uses SEM multigroup analysis to compare the attitudes and behaviors of sport fans and university students. The results showed that participants' pro-environmental attitude had a positive and significant effect on pro-environmental behavior. The type of consumer plays an important role in strengthening the relationship between pro-environmental attitude and pro-environmental behavior. Despite the higher average levels of pro-environmental attitude and pro-environment behavior evidenced by the sport fans, the influence of attitude on behavior is higher on socially conscious students, the group with a more cognitive and intrinsic link with the natural environment and sustainability initiatives. Despite the positive link attitudes-behaviors, empirical insights suggest that the connection between sport fans and the club is vital to reinforce the commitment with a stronger match between attitudes and behaviors. The findings also have implications for practitioners and policymakers in optimizing their strategies to encourage effective pro-environmental actions.

18.
Braz Oral Res ; 37: e126, 2023.
Article in English | MEDLINE | ID: mdl-38126470

ABSTRACT

This study aimed to evaluate the contribution of oral and maxillofacial pathology laboratories (OMPLs) in Brazilian public universities to the diagnosis of lip, oral cavity, and oropharyngeal squamous cell carcinoma (SCC). A cross-sectional study was performed using biopsy records from a consortium of sixteen public OMPLs from all regions of Brazil (North, Northeast, Central-West, Southeast, and South). Clinical and demographic data of patients diagnosed with lip, oral cavity, and oropharyngeal SCC between 2010 and 2019 were collected from the patients' histopathological records. Of the 120,010 oral and maxillofacial biopsies (2010-2019), 6.9% (8,321 cases) were diagnosed as lip (0.8%, 951 cases), oral cavity (4.9%, 5,971 cases), and oropharyngeal (1.2%, 1,399 cases) SCCs. Most cases were from Brazil's Southeast (64.5%), where six of the OMPLs analyzed are located. The predominant profile of patients with lip and oral cavity SCC was Caucasian men, with a mean age over 60 years, low schooling level, and a previous history of heavy tobacco consumption. In the oropharyngeal group, the majority were non-Caucasian men, with a mean age under 60 years, had a low education level, and were former/current tobacco and alcohol users. According to data from the Brazilian National Cancer Institute, approximately 9.9% of the total lip, oral cavity, and oropharyngeal SCCs reported over the last decade in Brazil may have been diagnosed at the OMPLs included in the current study. Therefore, this data confirms the contribution of public OMPLs with respect to the important diagnostic support they provide to the oral healthcare services extended by the Brazilian Public Health System.


Subject(s)
Head and Neck Neoplasms , Oropharyngeal Neoplasms , Male , Humans , Middle Aged , Brazil/epidemiology , Pathology, Oral , Cross-Sectional Studies , Oropharyngeal Neoplasms/diagnosis , Oropharyngeal Neoplasms/epidemiology , Squamous Cell Carcinoma of Head and Neck
19.
Nutrients ; 15(22)2023 Nov 15.
Article in English | MEDLINE | ID: mdl-38004186

ABSTRACT

Bioelectrical Impedance Analysis (BIA) is a reliable, non-invasive, objective, and cost-effective body composition assessment method, with high reproducibility. This scoping review aims to evaluate the current scientific and clinical evidence on BIA for body composition assessment in oncology patients, under active treatment. Literature search was conducted through MEDLINE, CINAHL, Scopus and Web of Science databases, following PRISMA-ScR Guidelines. Inclusion criteria comprised studies reporting the use of BIA for body composition evaluation in adults with cancer diagnosis. Studies including non-cancer pathology or only assessing nutritional status were excluded. This scoping review comprised a total of 36 studies: 25 were original studies including 18 prospective studies, six cross-sectional studies and one retrospective study and 11 were systematic reviews. Population size for the included original articles ranged from 18 to 1217 participants, comprising a total of 3015 patients with cancer with a mean baseline Body Mass Index (BMI) ranging from 20.3 to 30.0 kg/m2 and mean age ranging between 47 and 70 years. Review articles included a total of 273 studies, with a total of 78,350 participants. The current review considered studies reporting patients with head and neck cancer (HNC) (n = 8), breast cancer (BC) (n = 4), esophageal cancer (EC) (n = 2), liver cancer (n = 2), pancreatic cancer (PC) (n = 3), gastric cancer (GC) (n = 3), colorectal cancer (CRC) (n = 8), lung cancer (LC) (n = 1), skin cancer (SK) (n = 1) and multiple cancer types (n = 6). BIA is a suitable and valid method for the assessment of body composition in oncology. BIA-derived measures have shown good potential and relevant clinical value in preoperative risk evaluation, in the reduction of postoperative complications and hospital stay and as an important prognostic indicator in persons with cancer. Future research on the diagnostic value and clinical applications of BIA and BIA-derived phase angle (PhA) should be conducted in order to predict its impact on patient survival and other clinical outcomes.


Subject(s)
Body Composition , Head and Neck Neoplasms , Adult , Humans , Middle Aged , Aged , Electric Impedance , Reproducibility of Results , Prospective Studies , Retrospective Studies , Cross-Sectional Studies
20.
Biomolecules ; 13(10)2023 09 27.
Article in English | MEDLINE | ID: mdl-37892144

ABSTRACT

The global trend of rising (male) infertility is concerning, and the unidentifiable causes in half of the cases, the so-called unknown origin male infertility (UOMI), demands a better understanding and assessment of both external/internal factors and mechanisms potentially involved. In this work, it was our aim to obtain new insight on UOMI, specifically on idiopathic (ID) and Unexplained male infertility (UMI), relying on a detailed evaluation of the male gamete, including functional, metabolic and proteomic aspects. For this purpose, 1114 semen samples, from males in couples seeking infertility treatment, were collected at the Reproductive Medicine Unit from the Centro Hospitalar e Universitário de Coimbra (CHUC), from July 2018-July 2022. Based on the couples' clinical data, seminal/hormonal analysis, and strict eligibility criteria, samples were categorized in 3 groups, control (CTRL), ID and UMI. Lifestyle factors and anxiety/depression symptoms were assessed via survey. Sperm samples were evaluated functionally, mitochondrially and using proteomics. The results of Assisted Reproduction Techniques were assessed whenever available. According to our results, ID patients presented the worst sperm functional profile, while UMI patients were similar to controls. The proteomic analysis revealed 145 differentially expressed proteins, 8 of which were specifically altered in ID and UMI samples. Acrosin (ACRO) and sperm acrosome membrane-associated protein 4 (SACA4) were downregulated in ID patients while laminin subunit beta-2 (LAMB2), mannose 6-phosphate isomerase (MPI), ATP-dependent 6-phosphofructokinase liver type (PFKAL), STAR domain-containing protein 10 (STA10), serotransferrin (TRFE) and exportin-2 (XPO2) were downregulated in UMI patients. Using random forest analysis, SACA4 and LAMB2 were identified as the sperm proteins with a higher chance of distinguishing ID and UMI patients, and their function and expression variation were in accordance with the functional results. No alterations were observed in terms of lifestyle and psychological factors among the 3 groups. These findings obtained in an experimental setting based on 3 well-defined groups of subjects, might help to validate new biomarkers for unknown origin male infertility (ID and UMI) that, in the future, can be used to improve diagnostics and treatments.


Subject(s)
Infertility, Male , Semen , Humans , Male , Semen/metabolism , Semen Analysis , Proteomics/methods , Spermatozoa/metabolism
SELECTION OF CITATIONS
SEARCH DETAIL