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1.
Biomolecules ; 14(4)2024 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-38672489

RESUMO

Colorectal cancer (CRC) is a leading cause of death worldwide. Conventional therapies are available with varying effectiveness. Acetate, a short-chain fatty acid produced by human intestinal bacteria, triggers mitochondria-mediated apoptosis preferentially in CRC but not in normal colonocytes, which has spurred an interest in its use for CRC prevention/therapy. We previously uncovered that acetate-induced mitochondrial-mediated apoptosis in CRC cells is significantly enhanced by the inhibition of the lysosomal protease cathepsin D (CatD), which indicates both mitochondria and the lysosome are involved in the regulation of acetate-induced apoptosis. Herein, we sought to determine whether mitochondrial function affects CatD apoptotic function. We found that enhancement of acetate-induced apoptosis by CatD inhibition depends on oligomycin A-sensitive respiration. Mechanistically, the potentiating effect is associated with an increase in cellular and mitochondrial superoxide anion accumulation and mitochondrial mass. Our results provide novel clues into the regulation of CatD function and the effect of tumor heterogeneity in the outcome of combined treatment using acetate and CatD inhibitors.


Assuntos
Apoptose , Catepsina D , Neoplasias Colorretais , Mitocôndrias , Oligomicinas , Humanos , Acetatos/farmacologia , Apoptose/efeitos dos fármacos , Catepsina D/metabolismo , Catepsina D/antagonistas & inibidores , Linhagem Celular Tumoral , Respiração Celular/efeitos dos fármacos , Neoplasias Colorretais/metabolismo , Neoplasias Colorretais/patologia , Neoplasias Colorretais/tratamento farmacológico , Mitocôndrias/metabolismo , Mitocôndrias/efeitos dos fármacos , Oligomicinas/farmacologia
2.
Front Public Health ; 12: 1338435, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38510349

RESUMO

Introduction: Available literature has found an association between firefighting and pathologic pathways leading to cardiorespiratory diseases, which have been linked with exposure to polycyclic aromatic hydrocarbons (PAHs). PAHs are highlighted as priority pollutants by the European Human Biomonitoring Initiative in occupational and non-occupational contexts. Methods: This cross-sectional study is the first to simultaneously characterize six creatinine-adjusted PAHs metabolites (OHPAHs) in urine, blood pressure, cardiac frequency, and hemogram parameters among wildland firefighters without occupational exposure to fire emissions (> 7 days), while exploring several variables retrieved via questionnaires. Results: Overall, baseline levels for total OHPAHs levels were 2 to 23-times superior to the general population, whereas individual metabolites remained below the general population median range (except for 1-hydroxynaphthalene+1-hydroxyacenaphtene). Exposure to gaseous pollutants and/or particulate matter during work-shift was associated with a 3.5-fold increase in total OHPAHs levels. Firefighters who smoke presented 3-times higher total concentration of OHPAHs than non-smokers (p < 0.001); non-smoker females presented 2-fold lower total OHPAHs (p = 0.049) than males. 1-hydroxypyrene was below the recommended occupational biological exposure value (2.5 µg/L), and the metabolite of carcinogenic PAH (benzo(a)pyrene) was not detected. Blood pressure was above 120/80 mmHg in 71% of subjects. Firefighters from the permanent intervention team presented significantly increased systolic pressure than those who performed other functions (p = 0.034). Tobacco consumption was significantly associated with higher basophils (p = 0.01-0.02) and hematocrit (p = 0.03). No association between OHPAHs and blood pressure was found. OHPAHs concentrations were positively correlated with monocyte, basophils, large immune cells, atypical lymphocytes, and mean corpuscular volume, which were stronger among smokers. Nevertheless, inverse associations were observed between fluorene and pyrene metabolites with neutrophils and eosinophils, respectively, in non-smokers. Hemogram was negatively affected by overworking and lower physical activity. Conclusion: This study suggests possible associations between urinary PAHs metabolites and health parameters in firefighters, that should be further assessed in larger groups.


Assuntos
Poluentes Ambientais , Bombeiros , Hidrocarbonetos Policíclicos Aromáticos , Masculino , Feminino , Humanos , Hidrocarbonetos Policíclicos Aromáticos/análise , Pressão Sanguínea , Estudos Transversais , Biomarcadores , Estilo de Vida
3.
Sci Total Environ ; 926: 171801, 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38508274

RESUMO

Human biomonitoring data retrieved from real-life wildland firefighting in Europe and, also, worldwide are scarce. Thus, in this study, 176 Portuguese firefighters were biomonitored pre- and post- unsimulated wildfire combating (average:12-13 h; maximum: 55 h) to evaluate the impact on the levels of urinary polycyclic aromatic hydrocarbons hydroxylated metabolites (OHPAH; quantified by high-performance liquid chromatography with fluorescence detection) and the associated short-term health effects (symptoms, and total and differentiated white blood cells). Correlations between these variables and data retrieved from the self-reported questionnaires were also investigated. Firefighters were organized into four groups according to their exposure to wildfire emissions and their smoking habits: non-smoking non-exposed (NSNExp), non-smoking exposed (NSExp), smoking non-exposed (SNExp), and smoking and exposed (SExp). The most abundant metabolites were 1-hydroxynaphthalene and 1-hydroxyacenaphthene (1OHNaph + 1OHAce) (98-99 %), followed by 2-hydroxyfluorene (2OHFlu) (0.2-1.1 %), 1-hydroxyphenanthrene (1OHPhen) (0.2-0.4 %), and 1-hydroxypyrene (1OHPy) (0.1-0.2 %); urinary 3-hydroxybenzo(a)pyrene was not detected. The exposure to wildfire emissions significantly elevated the median concentrations of each individual and total OHPAH compounds in all groups, but this effect was more pronounced in non-smoking (1.7-4.2 times; p ≤ 0.006) than in smoking firefighters (1.3-1.6 times; p ≤ 0.03). The greatest discriminant of exposure to wildfire emissions was 1OHNaph + 1OHAce (increase of 4.2 times), while for tobacco smoke it was 2OHFlu (increase of 10 times). Post-exposure, white blood cells count significantly increased ranging from 1.4 (smokers, p = 0.025) to 3.7-fold (non-smokers, p < 0.001), which was accompanied by stronger significant correlations (0.480 < r < 0.882; p < 0.04) between individual and total OHPAH and total white blood cells (and lymphocytes > monocytes > neutrophils in non-smokers), evidencing the impact of PAH released from wildfire on immune cells. This study identifies Portuguese firefighters with high levels of biomarkers of exposure to PAH and points out the importance of adopting biomonitoring schemes, that include multiple biomarkers of exposure and biomarkers of effect, and implementing mitigations strategies.


Assuntos
Poluentes Ocupacionais do Ar , Bombeiros , Exposição Ocupacional , Hidrocarbonetos Policíclicos Aromáticos , Humanos , Hidrocarbonetos Policíclicos Aromáticos/análise , Poluentes Ocupacionais do Ar/análise , Exposição Ocupacional/análise , Monitoramento Biológico , Monitoramento Ambiental/métodos , Biomarcadores/análise
4.
J Geriatr Psychiatry Neurol ; : 8919887241237220, 2024 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-38436576

RESUMO

Dementia is a global public health challenge, and its impact on Portugal is yet unclear. This study forecasts dementia prevalence in Portugal until 2080. Using the Gonçalves-Pereira et al (2021) method, we estimated dementia cases among older adults (≥65 years) in the community. Applying age-sex specific prevalence rates of the Gonçalves-Pereira study to population projections for Portugal between 2020-2080, based on the 10/66 Dementia Research Group criteria (10/66 DRG) and the Diagnostic and Statistical Manual of Mental Disorders IV criteria (DSM-IV), to Portugal's population projections (2020-2080) under various growth scenarios (low, medium, and high). We anticipate a more than 2-fold increase in dementia prevalence from 2020 to 2080, both for 10/66 DRG [2.1%-5.0%] and DSM-IV [.8%-2.0%]. By 2080, those aged ≥80 years are projected to constitute 75.0% (vs 59.0% in 2020) of all dementia cases, particularly affecting women. Addressing dementia growth in Portugal calls for a comprehensive global response, while country-level estimates facilitate informed public health planning, policy-making, and resource allocation.

5.
Crit Rev Oncol Hematol ; 196: 104290, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38341118

RESUMO

Long noncoding RNAs (lncRNAs), as gene expression modulators, are potential players in Acute Lymphoblastic Leukemia (ALL) pathogenesis. We systematically explored current literature on lncRNA expression in ALL to identify lncRNAs consistently reported as differentially expressed (DE) either in ALL versus controls or between ALL subtypes. By comparing articles that provided global expression data for DE lncRNAs in the ETV6::RUNX1-positive ALL subtype, we identified four DE lncRNAs in three independent studies (two versus other subtypes and one versus controls), showing concordant expression of LINC01013, CRNDE and lnc-KLF7-1. Additionally, LINC01503 was consistently downregulated on ALL versus controls. Within RT-qPCR studies, twelve lncRNA were DE in more than one source. Thus, several lncRNAs were supported as DE in ALL by multiple sources, highlighting their potential role as candidate biomarkers or therapeutic targets. Finally, as lncRNA annotation is rapidly expanding, standardization of reporting and nomenclature is urgently needed to improve data verifiability and compilation.


Assuntos
Leucemia-Linfoma Linfoblástico de Células Precursoras , RNA Longo não Codificante , Humanos , RNA Longo não Codificante/genética , Biomarcadores/metabolismo , Leucemia-Linfoma Linfoblástico de Células Precursoras/genética , Perfilação da Expressão Gênica , Fatores de Transcrição Kruppel-Like/genética
6.
Int J Surg Pathol ; : 10668969241232698, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-38378017

RESUMO

Introduction. Tumors and tumor-like lesions of the uterine adnexa in children and adolescents are uncommon but may carry devastating consequences. Methods. We conducted an observational retrospective cohort study, to describe patients aged 0 to 19 years diagnosed with tumors and tumor-like lesions of the uterine adnexa at our institution between 2000 and 2018. Results. Eighty-nine patients with 105 adnexal lesions were included. Thirty-seven (42%) patients presented with benign tumors, 13 (15%) with borderline tumors, 25 (28%) with malignant tumors and 14 (16%) with tumor-like lesions. Germ cell tumors (n = 45|43%) were the most frequent, followed by epithelial tumors (n = 30|29%). No significant differences were found in the age distribution of the lesions by malignant potential or histologic group. Most patients (n = 80|90%) were treated primarily with conservative surgery, including cystectomy (n = 25|28%) and unilateral oophorectomy/adnexectomy (n = 54|61%). Thirty-four (38%) underwent surgical staging (partial omentectomy and peritoneal biopsies). Twenty (23%) patients with borderline and malignant tumors were submitted to chemotherapy. Four (5%) patients with borderline or malignant tumors relapsed, one of whom died from disease. Conclusion. Gynecological lesions in children and adolescents encompass a wide range of rare histological tumor subtypes, requiring evaluation by experienced pathologists. Most tumors were diagnosed at early stages, with low relapse and mortality rates. Conservative management, with fertility sparing surgery and limited use of adjuvant chemotherapy, is of utmost importance.

7.
Nat Commun ; 15(1): 1496, 2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38383468

RESUMO

Pancreatic ductal adenocarcinoma (PDAC), a lethal disease, requires a grasp of its biology for effective therapies. Exosomes, implicated in cancer, are poorly understood in living systems. Here we use the genetically engineered mouse model (ExoBow) to map the spatiotemporal distribution of exosomes from healthy and PDAC pancreas in vivo to determine their biological significance. We show that, within the PDAC microenvironment, cancer cells establish preferential communication routes through exosomes with cancer associated fibroblasts and endothelial cells. The latter being a conserved event in the healthy pancreas. Inhibiting exosomes secretion in both scenarios enhances angiogenesis, underscoring their contribution to vascularization and to cancer. Inter-organ communication is significantly increased in PDAC with specific organs as most frequent targets of exosomes communication occurring in health with the thymus, bone-marrow, brain, and intestines, and in PDAC with the kidneys, lungs and thymus. In sum, we find that exosomes mediate an organized intra- and inter- pancreas communication network with modulatory effects in vivo.


Assuntos
Carcinoma Ductal Pancreático , Exossomos , Neoplasias Pancreáticas , Camundongos , Animais , Exossomos/patologia , Células Endoteliais/patologia , Linhagem Celular Tumoral , Movimento Celular , Neoplasias Pancreáticas/patologia , Carcinoma Ductal Pancreático/genética , Carcinoma Ductal Pancreático/patologia , Pâncreas/patologia , Microambiente Tumoral
9.
Nurs Rep ; 13(4): 1342-1353, 2023 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-37873820

RESUMO

Nursing education and formation is still heterogenous in spite of The Bologna Declaration in 1999. Apart from the existence of basic curriculum standards, universities have flexibility regarding its design. The objective of this study is to provide an overview of contemporary nursing education and contrast it with the legal frameworks in place in four Southern European countries: Portugal, Spain, Italy, and Greece. A scoping review was conducted in order to revise and obtain an up-to-date review of current nursing education and quality. Then, a content evaluation of the legal public framework was conducted. A total of nine articles were included in the review. Data analysis evoked three main themes from the results: nursing education heterogeneity owing to ECTS increased from 180 to 240 for the diversity of clinical practice hours; the nursing framework lacked a definition; and the evolution of nursing education, alongside quality improvement and more accurate guidelines were required. Regarding their legal framework, the main directives and legislation standards were assessed and compared with the current curriculum. To conclude, nursing heterogeneity education evokes competence inequality among students and future professionals as larger curricular programs (240 ECTS) offer more clinical practice. Nursing education uniformity could enhance international mobility and promote knowledge exchange and nursing competence framework definitions. These are facts that certainly bring nursing empowerment. This study was not registered.

10.
Artigo em Inglês | MEDLINE | ID: mdl-37265078

RESUMO

BACKGROUND: Asthma is a highly prevalent disease, one of the chronic diseases with the highest economic costs; thus, it imposes a high economic burden on society, the healthcare system, patients, and third-party payers. Contrary to this study, until now, systematic reviews of economic evaluations (EEs) of treatments for severe asthma have not been exclusively focused on biological treatments, and have included a small number of studies and only model-based EEs. METHODS: This study systematically reviews EEs of biological therapies for severe asthma published until December 2022 using PRISMA guidelines. The review analyzes the cost-effectiveness of biologicals in comparison to SOC, or SOC plus OCS. The quality of the EEs is assessed using Consensus on Health Economics Checklist extended (CHEC-extended). RESULTS: Thirty-nine studies were eligible: 15 based on a Markov model, and 19 trial-based; eight adopting societal and NHS perspectives, and seven the payer's perspective. The reviewed EEs addressed cost-effectiveness, cost-utility, and incremental costs and outcomes comparison. Their findings were mainly expressed through ICER-incremental cost-effectiveness ratio (24 studies: 13 concluded that biological were cost-effective) and cost comparison analysis (14 studies: 6 concluded that biological were cost-effective), and were sensitive to a wide variety of factors (e.g. medication cost, treatment response, time horizon, utility benefits, mortality, exacerbation rate, discount rate, etc.). CONCLUSIONS: There has been some ambiguity concerning the EE of biological therapies due to variation in choice of study design and contradictory results. Nevertheless, it can be concluded that biological treatments improve health outcomes, in many contexts at a high cost.


Assuntos
Asma , Humanos , Análise Custo-Benefício , Asma/tratamento farmacológico , Anos de Vida Ajustados por Qualidade de Vida , Projetos de Pesquisa , Custos de Medicamentos
11.
Dement Geriatr Cogn Disord ; 52(4): 205-213, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37257431

RESUMO

INTRODUCTION: Literature shows poor dementia training and competencies among health and social professionals. Due to the growing prevalence of people with dementia and all the related care demands, specialized training is increasingly needed but must be effective in terms of impact on knowledge, behaviors, and attitudes. We aimed to analyze the impact of a first-level dementia training course for staff of a new specialized center for people with dementia, considering the first three levels of Kirkpatrick's evaluation framework, namely, staff reaction (satisfaction), skills and learning (knowledge and dementia attitudes), and behavior changes. METHODS: This is a single-center group pre-post design study of a 12-session online course. An online questionnaire was administered to measure satisfaction, expectations, knowledge/learning, attitudes (Dementia Attitude Scale), and new behaviors/practices. We compared perceived knowledge (Wilcoxon signed-rank test) and attitudes (paired t test). Thematic analysis explored new behaviors/practices. RESULTS: Eighty-five professionals and 1 volunteer were included (median age 31, 92% female). Satisfaction with the training was high (median 4/5). Perceived knowledge improved (median 3-4; p < 0.001). The knowledge test median score was 70.8%. After training, participants showed better attitudes toward dementia (mean 116.5, SD 10.3, to mean 122.2, SD 11.5; p < 0.001). Most (93%) said their behavior/practice changed. Thematic analysis yielded four new behavior/practice dimensions: care provision/interaction, communication, family/caregivers, and self-confidence. CONCLUSIONS: The course improved all dimensions evaluated, suggesting it effectively provides first-level dementia training. This may be transferable to similar settings.


Assuntos
Demência , Humanos , Feminino , Masculino , Demência/terapia , Atitude , Cuidadores , Comunicação , Aprendizagem
12.
Artigo em Inglês | MEDLINE | ID: mdl-36900873

RESUMO

Sleep research has grown over the past decades and investigators are deeply involved in studying sleep and its impact on human health and body regulation. Despite the understanding that insufficient sleep is strongly linked to the development of several disorders, unsatisfactory sleep exposes health and safety to innumerous risks. The present study aims to review and analyze the main results of clinical trials, registered at ClinicalTrials.gov and ICTRT databases, and developed construct strategies to improve sleep quality on firefighters and enhance professionals' sleep and health conditions. The protocol was registered in PROSPERO under number CRD42022334719. Trials registered between first registry and 2022 were included. We retrieved 11 registered clinical trials; seven met eligibility criteria and were included in the review. A relation between sleep disorders, shift work, and occupational health problems was found, and retrieved trials showed that sleep education programs can improve sleep quality and sleep hygiene. Science has already recognized sleep's importance for metabolic functioning and survivorship. Nevertheless, it continues to play a major role in discovering methods to diminish the problems faced. Strategies contemplating sleep education, or intervention, should be presented to fire services to tackle this problem and promote healthier and safer environments.


Assuntos
Bombeiros , Transtornos do Sono-Vigília , Humanos , Sono/fisiologia , Privação do Sono , Qualidade do Sono
13.
Sci Data ; 10(1): 87, 2023 02 11.
Artigo em Inglês | MEDLINE | ID: mdl-36774440

RESUMO

In response to the COVID-19 pandemic, the Psychological Science Accelerator coordinated three large-scale psychological studies to examine the effects of loss-gain framing, cognitive reappraisals, and autonomy framing manipulations on behavioral intentions and affective measures. The data collected (April to October 2020) included specific measures for each experimental study, a general questionnaire examining health prevention behaviors and COVID-19 experience, geographical and cultural context characterization, and demographic information for each participant. Each participant started the study with the same general questions and then was randomized to complete either one longer experiment or two shorter experiments. Data were provided by 73,223 participants with varying completion rates. Participants completed the survey from 111 geopolitical regions in 44 unique languages/dialects. The anonymized dataset described here is provided in both raw and processed formats to facilitate re-use and further analyses. The dataset offers secondary analytic opportunities to explore coping, framing, and self-determination across a diverse, global sample obtained at the onset of the COVID-19 pandemic, which can be merged with other time-sampled or geographic data.


Assuntos
COVID-19 , Humanos , Adaptação Psicológica , Comportamentos Relacionados com a Saúde , Pandemias , Inquéritos e Questionários
14.
Crit Rev Food Sci Nutr ; 63(27): 8796-8807, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35373671

RESUMO

The present systematic review with meta-analysis summarized studies that investigated the effect of carbohydrate (CHO) mouth rinse on muscle strength and muscular endurance. The search was performed in six databases. Thirteen randomized clinical trials were selected and the standardized mean difference between CHO mouth rinse and placebo for maximal strength and muscular endurance was determined via a random-effects model using Review Manager 5.4 software. Meta-regression was also performed to explore the influence of load, number of sets, number of exercises, fasting time, CHO concentration, and number of mouth rinses on the main outcomes. There was no significant effect of CHO mouth rinse on maximal strength (mean difference= 0.25 kg, 95%CI - 1.81 to 2.32 kg, z = 0.24, p = 0.810). However, there was a significant positive effect of CHO mouth rinse on muscular endurance (mean difference = 1.24 repetitions, 95%CI 0.70 to 1.77 repetitions, z = 4.55, p < 0.001). Meta-regression identified that CHO mouth rinse has greater benefits on muscular endurance when using high workloads, multiple exercises, and a smaller number of mouth rinses (p = 0.001). In conclusion, CHO mouth rinse has no effect on maximal muscle strength but has a positive effect on muscular endurance and seems to optimize when fewer mouth rinses, high workloads and numbers of exercises are used.Supplemental data for this article is available online at https://doi.org/10.1080/10408398.2022.2057417.


Assuntos
Antissépticos Bucais , Resistência Física , Antissépticos Bucais/farmacologia , Resistência Física/fisiologia , Carboidratos da Dieta , Exercício Físico/fisiologia , Força Muscular/fisiologia
15.
Rev. enferm. atenção saúde ; 12(2): 202379, Mar.-Jun. 2023.
Artigo em Inglês, Espanhol, Português | BDENF - enfermagem (Brasil) | ID: biblio-1444734

RESUMO

Objetivo: descrever atividades educativas sobre a sexualidade desenvolvidas com os idosos. Método: Trata-se de a um estudo descritivo, com abordagem qualitativa, fundamentado nos pressupostos da pesquisa-ação, mediada pelo questionamento se as atividades podem possibilitar o repensar sobre a sexualidade da pessoa idosa. Resultados: As atividades desenvolvidas permitiram que os participantes pudessem ter uma visão diferenciada e uma compreensão maior sobre o que realmente significa sexualidade, e como ela está diretamente envolvida com o processo de envelhecimento, proporcionando a concepção de que a sexualidade pode ser vivida em qualquer fase da vida e de várias formas. Conclusão: Notou-se, após as atividades educativas desenvolvidas, não somente a melhor compreensão sobre a temática, mas a ruptura do receio de falar sobre um assunto permeado de tabus nesse segmento populacional (AU).


Objective: to describe educational activities about sexuality developed with the elderly. Method: This is a descriptive study, with a qualitative approach, based on the assumptions of action research, mediated by questioning whether the activities can enable rethinking about the sexuality of the elderly. Results: The activities developed allowed the participants to have a different view and a greater understanding of what sexuality really means, and how it is directly involved with the aging process, providing the conception that sexuality can be experienced at any stage of life and of shapes. Conclusion: It was noted, after the educational activities developed, not only a better understanding of the theme, but the fear of talking about a subject permeated by taboos in this population segment (AU).


Objetivo: describir actividades educativas sobre sexualidad desarrolladas con ancianos. Método: Se trata de un estudio descriptivo, con abordaje cualitativo, pautado en los supuestos de la investigación-acción, mediada por el cuestionamiento de si las actividades pueden posibilitar repensar la sexualidad de los ancianos. Resultados: Las actividades desarrolladas permitieron a los participantes tener una mirada diferente y una mayor comprensión de lo que realmente significa la sexualidad, y cómo ella está directamente involucrada con el proceso de envejecimiento, brindando la concepción de que la sexualidad puede ser experimentada en cualquier etapa de la vida y de formas. Conclusión: Se constató, después de las actividades educativas desarrolladas, no sólo una mejor comprensión del tema, sino el temor de hablar sobre un tema permeado por tabúes en este segmento de la población (AU).


Assuntos
Humanos , Masculino , Feminino , Idoso , Idoso , Educação em Saúde , Sexualidade
16.
Life (Basel) ; 14(1)2023 Dec 29.
Artigo em Inglês | MEDLINE | ID: mdl-38255677

RESUMO

Pemphigus foliaceus (PF) is an autoimmune skin blistering disease characterized by antidesmoglein-1 IgG production, with an endemic form (EPF) in Brazil. Genetic and epigenetic factors have been associated with EPF, but its etiology is still not fully understood. To evaluate the genetic association of histone (de)acetylation-related genes with EPF susceptibility, we evaluated 785 polymorphisms from 144 genes, for 227 EPF patients and 194 controls. Carriers of HDAC4_rs4852054*A were more susceptible (OR = 1.79, p = 0.0038), whereas those with GSE1_rs13339618*A (OR = 0.57, p = 0.0011) and homozygotes for PHF21A_rs4756055*A (OR = 0.39, p = 0.0006) were less susceptible to EPF. These variants were not associated with sporadic PF (SPF) in German samples of 75 SPF patients and 150 controls, possibly reflecting differences in SPF and EPF pathophysiology. We further evaluated the expression of histone (de)acetylation-related genes in CD4+ T lymphocytes, using RNAseq. In these cells, we found a higher expression of KAT2B, PHF20, and ZEB2 and lower expression of KAT14 and JAD1 in patients with active EPF without treatment compared to controls from endemic regions. The encoded proteins cause epigenetic modifications related to immune cell differentiation and cell death, possibly affecting the immune response in patients with PF.

17.
Front Med (Lausanne) ; 10: 1277565, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38259839

RESUMO

Introduction: Older persons with dementia (PwD) are more likely to be institutionalized than their counterparts without dementia. The caregiver's desire to institutionalize has been suggested as the most important predictor of actual institutionalization. This cross-sectional study aimed to culturally adapt the Desire to Institutionalize Scale (DIS) to a country with a high prevalence of dementia (Portugal) and examine its psychometric properties. Methods: The reliability, structural validity, and criterion validity of the DIS-PT were assessed by applying the scale using a remote measurement web platform. A sample of 105 dementia caregivers completed the DIS-PT and several psychosocial measures, including caregiver burden, anxiety, depression, quality of life, PwD functional independence, and neuropsychiatric symptoms. Results: The DIS-PT demonstrated good structural validity, with one factor explaining 75% of the total variance. The internal consistency of the scale was high (α = 0.802). Most caregivers (65.7%) endorsed at least one item on the DIS-PT (Mdn 2). The caregiver's desire to institutionalize was significantly associated with the caregiver, care recipient, and contextual variables previously known to affect institutional placement. These included the caregivers' occupational status, perceived burden, anxiety (but not depression), physical and psychological quality of life, care recipient education, severity of neuropsychiatric symptoms, and cohabitation with the caregiver. Discussion: This study offers preliminary support for the psychometric quality of the DIS-PT. The scale has practical applications in the early identification of caregivers considering nursing home placement, providing room for intervention in modifiable risk factors that may otherwise lead to the institutionalization of PwD. Remote measurement tools may hold value in assessing caregiving dyads non-intrusively and inexpensively.

18.
Pharmaceutics ; 14(12)2022 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-36559232

RESUMO

Frequently, deep partial and full-thickness skin wounds do not spontaneously regenerate. To restore the normal function of skin, epidermal and dermal components have to be supplied to the wound bed by grafting various substrates. Available options are limited and frequently costly. Herein, authors present a possible approach using 3D skin scaffolds capable of mimicking structure and biological functions of the extracellular matrix, providing, in parallel, a good environment for cell attachment, proliferation and differentiation. Low-molecular weight chitosan-based membranes were prepared by freeze-drying and ionizing radiation techniques to be used as skin scaffolds. Poly (vinyl alcohol), PVA, vinyl pyrrolidone, VP, and gelatin from cold water fish were incorporated. Information regarding membranes' physical-chemical properties from SEM analysis, swelling and weight loss, together with biological response through in vitro assays (using Human Caucasian Fetal Foreskin Fibroblast) allowed the selection of an optimized batch of membranes that was used as skin scaffold in a dorsal rat model wound. The in vivo implantation assays (in Wistar rats) resulted in very promising results: (i) healing process faster than control; (ii) good vascularization; (iii) viable new tissues morphologically functional.

19.
Front Med (Lausanne) ; 9: 1031143, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36530892

RESUMO

Introduction: Experiencing bereavement may be challenging. Despite the oldest-old population increase, a subgroup at greater risk of death, few studies focus on the grieving process of informal caregivers (ICs). This study analyzed the transition to bereavement of ICs of oldest-old individuals (≥80 years) over 1-year and compares the evolution of the health-related quality of life (HrQoL) between those experiencing bereavement and those who continued care through the study period. Materials and methods: A prospective longitudinal observational study was conducted enrolling 204 ICs of the Metropolitan Area of Porto (North Portugal), of which 36 experienced the death of care receiver (CR). ICs' health profile and burden were assessed. CRs' functional and cognitive status were also appraised. Results: Bereaving caregivers were mostly female, CRs' children, and had on average 60.4 years at baseline. Caregivers spent a mean of 10.1 h/day (SD = 7.7) caring, for 80.6 months (SD = 57.5). The time elapsed since CR's death was 6 months (SD = 3.5) from entering in the study. CRs who died had a mean age of 88.3 (SD = 5.4) years at baseline, and were very dependent. Over a 1-year follow-up, bereaving caregivers showed a significant decrease in mental health following CR's death; on the other hand, caregivers who continued caring improved mental health [F(1, 159) = 4.249, p = 0.041]. Discussion: Ending the caregiver career was marked by a decline in mental health whereas to continue caring was marked by an improvement in this outcome. While it is highly expected that the CR's death will be perceived as a relief considering both the caregiver's characteristics (e.g., medicines) and the CR condition (e.g., high dependence levels), the results suggest an opposite direction. CRs' death seems to arise an emotional burden for IC, at least during the first year, possibly triggering feelings of loneliness and a life without purpose that seems to aggravate mental health issues. Conclusion: The transition to bereavement among ICs seems to lead to a caregiver mental health decline while those who continued caring (and thereby, experiencing caregiving stressors) seems to improve in this outcome. Ceasing caregiving stressors does not seem to contribute better experiencing bereavement among ICs, suggesting the need for support throughout this phase.

20.
Braz. J. Anesth. (Impr.) ; 72(6): 790-794, Nov.-Dec. 2022. tab
Artigo em Inglês | LILACS | ID: biblio-1420610

RESUMO

Abstract Idiopathic intracranial hypertension (IIH) is a neurological condition characterized by raised intracranial pressure of unknown etiology with normal cerebrospinal fluid (CSF) composition and no brain lesions. It occurs in pregnant patients at approximately the same frequency as in general population, but obstetric and anesthetic management of the pregnancy and labor remains controversial. In this article we provide a multidisciplinary review of the main aspects of IIH in pregnancy including treatment options, mode of delivery and anesthetic techniques. Additionally, we report three cases of pregnant women diagnosed with IIH between 2012 and 2019 in our institution.


Assuntos
Humanos , Feminino , Gravidez , Complicações na Gravidez/terapia , Pseudotumor Cerebral/complicações , Pseudotumor Cerebral/diagnóstico , Pseudotumor Cerebral/terapia , Trabalho de Parto , Hipertensão Intracraniana/terapia
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