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1.
Nutrients ; 16(10)2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38794773

RESUMO

BACKGROUND: Although malnutrition is frequently observed in patients with heart failure (HF), this diagnosis should be performed carefully since HF itself is associated with increased inflammatory activity, which affects body weight, functionality, and some nutritional parameters; thus, its isolated interpretation can erroneously identify surrogate markers of severity as markers of malnutrition. In this context, we aimed to evaluate the prevalence of malnutrition using different classification systems and perform a comprehensive nutritional evaluation to determine the reliability of different diagnostic techniques. PATIENTS AND METHODS: Eighty-three patients with a recent hospital admission due to HF were evaluated. GLIM diagnosis criteria and subjective global assessment (SGA) were performed; a comprehensive anthropometric, functional, and biochemical nutritional evaluation was performed, in which bioelectrical impedance analysis (BIA), nutritional ultrasound, and dual-energy X-ray absorptiometry (DXA) were performed. Additionally, mortality and additional admissions due to HF were determined after a mean follow up of 18 months. RESULTS: Malnutrition according to the GLIM criteria (54%) accurately distinguished patients with impaired functionality, lower lean mass, skeletal mass index, and appendicular muscle mass (BIA), as well as lower trunk fat mass, trunk lean mass, fat-free mass (DXA), and decreased albumin and increased C-reactive protein serum levels. According to SGA, there were significant changes in body composition parameters determined by BIA, muscle ultrasound, and functional tests between well-nourished patients and patients with risk of malnutrition (53.7%) or who had malnutrition (7.1%), but not when the last two groups were compared. BIA and DXA showed strong correlations when evaluating muscle and fat mass in HF patients, but correlations with nutritional ultrasound were limited, as well as functional tests. A multivariate analysis showed that no significant association was observed between body composition and mortality, but preperitoneal fat was associated with an increased risk of new hospital admissions (OR: 0.73). CONCLUSIONS: GLIM criteria identified a lower percentage of patients with HF and malnutrition compared with SGA; thus, SGA could have a role in preventing malnutrition in HF patients. Nutritional evaluation with BIA and DXA in patients with HF showed reliable results of body composition parameters in HF, and both help with the diagnosis of malnutrition according to the GLIM or SGA criteria and could provide complementary information in some specific cases.


Assuntos
Absorciometria de Fóton , Composição Corporal , Impedância Elétrica , Insuficiência Cardíaca , Desnutrição , Avaliação Nutricional , Estado Nutricional , Ultrassonografia , Humanos , Desnutrição/diagnóstico , Masculino , Feminino , Idoso , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/fisiopatologia , Ultrassonografia/métodos , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Reprodutibilidade dos Testes , Prevalência
2.
Int J Clin Health Psychol ; 24(2): 100465, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38737628

RESUMO

Background: Although significant progress has been made in the rights of the LGBTQ+ community, even today this population still faces stigma and discrimination that impacts their mental health. In the case of men who have sex with men, it has been demonstrated that the use of drugs in a sexual context (chemsex) is one of the coping mechanisms and means of escape to deal with these situations. Method: We assessed 284 native Spanish speakers' participants, 45,4 % were not engaged in sexualised drug use (n = 129) while 54,6 % were chemsex users (n = 155) using 18,7 % of them the injected via. The participants completed six questionnaires about life and sexual satisfaction, depression, anxiety, internalised homophobia and personality. Bivariate and multivariable logistic regression were performed to assess the associations between sexual behaviour-related and psychological variables. Kruskal-Wallis H test was used to analysed the impact on mental health of the administration via. Results: Aged, unprotected sexual relationships, positive serostatus, homonegativity and conscientiousness predicted the chemsex engagement. Furthermore, we found differences regarding the administration via. Conclusions: We conclude that mental health significantly correlates with the practice of chemsex, highlighting the importance of integrating mental health considerations into the prevention of risky sexual behaviors.

3.
J Clin Med ; 13(7)2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38610829

RESUMO

This comprehensive review explores the dynamic relationship between sports, nutrition, and neurological health. Focusing on recent clinical advancements, it examines how physical activity and dietary practices influence the prevention, treatment, and rehabilitation of various neurological conditions. The review highlights the role of neuroimaging in understanding these interactions, discusses emerging technologies in neurotherapeutic interventions, and evaluates the efficacy of sports and nutritional strategies in enhancing neurological recovery. This synthesis of current knowledge aims to provide a deeper understanding of how lifestyle factors can be integrated into clinical practices to improve neurological outcomes.

4.
J Pers Med ; 14(3)2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38541047

RESUMO

In recent years, although life expectancy has increased significantly, non-communicable diseases (NCDs) continue to pose a significant threat to the health of the global population. Therefore, eating habits have been recognized as key modifiable factors that influence people's health and well-being. For this reason, it is interesting to study dietary patterns, since the human diet is a complex mixture of macronutrients, micronutrients, and bioactive compounds, and can modulate multiple physiological processes, including immune function, the metabolism, and inflammation. To ensure that the data we acquired were current and relevant, we searched primary and secondary sources, including scientific journals, bibliographic indexes, and databases in the last 15 years with the most relevant articles. After this search, we observed that all the recent research on NCDs suggests that diet is a critical factor in shaping an individual's health outcomes. Thus, cardiovascular, metabolic, mental, dental, and visual health depends largely on the intake, habits and patterns, and nutritional behaviors. A diet high in processed and refined foods, added sugars, and saturated fats can increase the risk of developing chronic diseases. On the other hand, a diet rich in whole, nutrient-dense foods, such as vegetables, fruits, nuts, legumes, and a high adherence to Mediterranean diet can improve health's people.

5.
Int J Mol Sci ; 25(5)2024 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-38474254

RESUMO

This systematic review addresses the use of Lactiplantibacillus (Lactobacillus) plantarum in the symptomatological intervention of neurodegenerative disease. The existence of gut microbiota dysbiosis has been associated with systemic inflammatory processes present in neurodegenerative disease, creating the opportunity for new treatment strategies. This involves modifying the strains that constitute the gut microbiota to enhance synaptic function through the gut-brain axis. Recent studies have evaluated the beneficial effects of the use of Lactiplantibacillus plantarum on motor and cognitive symptomatology, alone or in combination. This systematic review includes 20 research articles (n = 3 in human and n = 17 in animal models). The main result of this research was that the use of Lactiplantibacillus plantarum alone or in combination produced improvements in symptomatology related to neurodegenerative disease. However, one of the studies included reported negative effects after the administration of Lactiplantibacillus plantarum. This systematic review provides current and relevant information about the use of this probiotic in pathologies that present neurodegenerative processes such as Alzheimer's disease, Parkinson's disease and Multiple Sclerosis.


Assuntos
Doença de Alzheimer , Lactobacillus plantarum , Doenças Neurodegenerativas , Doença de Parkinson , Probióticos , Animais , Humanos , Acesso à Informação
6.
Sports (Basel) ; 12(1)2024 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-38275986

RESUMO

The symbiotic relationship between sports practice and psychological well-being has, in recent times, surged to the forefront of academic and public attention. The aim of this narrative review is to comprehensively explore the intricate pathways linking physical engagement in sports to its subsequent impacts on mental health and synthesize the multifarious effects of sports on psychological health, offering insights for integrating physical and psychological strategies to enhance well-being. From neurobiological underpinnings to therapeutic applications, this comprehensive manuscript provides an in-depth dive into the multifaceted world of sports and psychology. Highlighting evidence-based interventions, this review aspires to offer actionable insights for practitioners, athletes, and individuals alike, advocating for a holistic approach to mental well-being. This manuscript highlights the profound impact of sports on mental health, emphasizing its role in emotional regulation, resilience, cognitive function, and treating psychological conditions. It details how sports induce neurochemical changes, enhance brain functions like memory and learning, and aid against cognitive decline. This review also notes the benefits of regular exercise in mood improvement, stress management, and social skill enhancement, particularly when combined with mindfulness practices. It underscores the importance of considering cultural and gender perspectives in sports psychology, advocating for an integrated physical-psychological approach to promote overall well-being.

8.
Front Public Health ; 11: 1172391, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37920579

RESUMO

Asthma is one of the most common atopic disorders in all stages of life. Its etiology is likely due to a complex interaction between genetic, environmental, and lifestyle factors. Due to this, different non-pharmacological interventions can be implemented to reduce or alleviate the symptoms caused by this disease. Thus, the present narrative review aimed to analyze the preventive and non-pharmacological interventions such as physical exercise, physiotherapy, nutritional, ergonutritional, and psychological strategies in asthma treatment. To reach these aims, an extensive narrative review was conducted. The databases used were MedLine (PubMed), Cochrane (Wiley), Embase, PsychINFO, and CinAhl. Asthma is an immune-mediated inflammatory condition characterized by increased responsiveness to bronchoconstrictor stimuli. Different factors have been shown to play an important role in the pathogenesis of asthma, however, the treatments used to reduce its incidence are more controversial. Physical activity is focused on the benefits that aerobic training can provide, while physiotherapy interventions recommend breathing exercises to improve the quality of life of patients. Nutritional interventions are targeted on implement diets that prioritize the consumption of fruits and vegetables and supplementation with antioxidants. Psychological interventions have been proposed as an essential non-pharmacological tool to reduce the emotional problems associated with asthma.


Assuntos
Asma , Qualidade de Vida , Humanos , Asma/prevenção & controle , Exercício Físico , Terapia por Exercício
9.
Virchows Arch ; 483(6): 787-794, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37874375

RESUMO

The TCGA-based molecular classification of endometrial cancer has emerged as an important tool to stratify patients according to prognosis. A simplified scheme has been proposed, by using immunohistochemistry for p53, MSH6, and PMS2 and a molecular test for POLE mutations (NGS or Sanger sequencing, techniques that are not available in many centers worldwide). In this study, we validate a novel method that allows simultaneous analysis of multiple pathogenic POLE mutations. The Modaplex technology integrates polymerase chain reaction and capillary electrophoresis. The design of this study encompassed 4 different steps: (1) a retrospective-pilot phase, with 80 tumors, balancing the four molecular subgroups. (2) A retrospective phase of 25 tumors obtained between 2016 and 2020, and 30 tumors obtained between 2000 and 2015. (3) An inter-laboratory corssavalidation step with 19 cases (belonging to phases 1 and 2). (4) A prospective cohort of 123 tumors, of unknown POLE status, with simultaneous validation by Sanger sequencing. A total of 258 samples were analyzed. In the first and second phases, the test showed positive/negative predictive values of 100%, by correctly identifying POLE mutation status in 79/79 and 55/55 cases. Phase 3 showed 100% of inter-laboratory consistency. Phase 4 showed 16 positive samples out of the 123 prospective cases. Overall, the test has revealed sensitivity and specificity of 100%, identifying a total of 47 POLE-mutated tumors. We have shown that this technique allows faster and easier identification of multiple pathogenic POLE mutations with high robustness and confidence when comparing to other tests such as Sanger sequencing.


Assuntos
Neoplasias do Endométrio , Feminino , Humanos , Estudos Retrospectivos , Neoplasias do Endométrio/diagnóstico , Neoplasias do Endométrio/genética , Neoplasias do Endométrio/patologia , Valor Preditivo dos Testes , Sensibilidade e Especificidade , Mutação , Proteínas de Ligação a Poli-ADP-Ribose/genética
10.
Int J Mol Sci ; 24(17)2023 Aug 27.
Artigo em Inglês | MEDLINE | ID: mdl-37686104

RESUMO

The comprehensive narrative review conducted in this study delves into the mechanisms of communication and action at the molecular level in the human organism. The review addresses the complex mechanism involved in the microbiota-gut-brain axis as well as the implications of alterations in the microbial composition of patients with neurodegenerative diseases. The pathophysiology of neurodegenerative diseases with neuronal loss or death is analyzed, as well as the mechanisms of action of the main metabolites involved in the bidirectional communication through the microbiota-gut-brain axis. In addition, interventions targeting gut microbiota restructuring through fecal microbiota transplantation and the use of psychobiotics-pre- and pro-biotics-are evaluated as an opportunity to reduce the symptomatology associated with neurodegeneration in these pathologies. This review provides valuable information and facilitates a better understanding of the neurobiological mechanisms to be addressed in the treatment of neurodegenerative diseases.


Assuntos
Microbioma Gastrointestinal , Doenças Neurodegenerativas , Humanos , Disbiose/terapia , Transplante de Microbiota Fecal , Doenças Neurodegenerativas/terapia , Metaboloma
11.
Biomedicines ; 11(9)2023 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-37760929

RESUMO

Mitochondria play a vital role in maintaining cellular energy homeostasis, regulating apoptosis, and controlling redox signaling. Dysfunction of mitochondria has been implicated in the pathogenesis of various brain diseases, including neurodegenerative disorders, stroke, and psychiatric illnesses. This review paper provides a comprehensive overview of the intricate relationship between mitochondria and brain disease, focusing on the underlying pathological mechanisms and exploring potential therapeutic opportunities. The review covers key topics such as mitochondrial DNA mutations, impaired oxidative phosphorylation, mitochondrial dynamics, calcium dysregulation, and reactive oxygen species generation in the context of brain disease. Additionally, it discusses emerging strategies targeting mitochondrial dysfunction, including mitochondrial protective agents, metabolic modulators, and gene therapy approaches. By critically analysing the existing literature and recent advancements, this review aims to enhance our understanding of the multifaceted role of mitochondria in brain disease and shed light on novel therapeutic interventions.

12.
Front Neurol ; 14: 1209477, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37602251

RESUMO

Introduction: Multiple sclerosis (MS) is a progressive disease with a fluctuating and unpredictable course that has no curative treatment at present. One of its main characteristics is the variety of signs and symptoms that produce a high percentage of patients who present alterations in balance and gait during the development of the disease, decreased muscle strength, spasticity, or decreased pimax. Rehabilitative therapy, especially physiotherapy, is the main course of the treatment of these alterations using reflex locomotion and the Bobath concept as a form of kinesitherapy that activates the preorganized circuits of the central nervous system. Objective: The objective of this study is to evaluate the reflex locomotion and Bobath concept effects on balance, spasticity, reaction time, respiratory parameters, and lacrimal biomolecular markers. Methods and analysis: This is a randomized controlled trial on the effectiveness of two neurorehabilitation techniques in patients with multiple sclerosis conducted at the University of Salamanca. The research will take place at the Faculty of Nursing and Physiotherapy, University of Salamanca. The study will be conducted from June 2023 to June 2024. The reflex locomotion group will receive individual sessions of therapy (n = 27), and the Bobath concept group (n = 27) will receive the same number of sessions. Both groups will receive two sessions per week for 12 months. The measurement variables will be the Berg Balance Scale, the Tardieu Scale, the Cognitfit Program, Maximum Inspiratory Pressure, and Lacrimal Biomarkers. Ethics and dissemination: This study has been approved by the Ethics Committee of the University of Salamanca on March 2023 (ref: 896). Limitations: The main limitations of this study are the selection and number of patients, the delay in implementing the therapy within the initially scheduled period, inadequate sample collection, and inadequate sample processing. Trial registration number: ClinicalTrials.gov; identifier: NCT05558683.

13.
Nutrients ; 15(14)2023 Jul 11.
Artigo em Inglês | MEDLINE | ID: mdl-37513524

RESUMO

This comprehensive narrative review explores the concept of neuro-vulnerability in energy metabolism regulation and its implications for metabolic disorders. The review highlights the complex interactions among the neural, hormonal, and metabolic pathways involved in the regulation of energy metabolism. The key topics discussed include the role of organs, hormones, and neural circuits in maintaining metabolic balance. The review investigates the association between neuro-vulnerability and metabolic disorders, such as obesity, insulin resistance, and eating disorders, considering genetic, epigenetic, and environmental factors that influence neuro-vulnerability and subsequent metabolic dysregulation. Neuroendocrine interactions and the neural regulation of food intake and energy expenditure are examined, with a focus on the impact of neuro-vulnerability on appetite dysregulation and altered energy expenditure. The role of neuroinflammation in metabolic health and neuro-vulnerability is discussed, emphasizing the bidirectional relationship between metabolic dysregulation and neuroinflammatory processes. This review also evaluates the use of neuroimaging techniques in studying neuro-vulnerability and their potential applications in clinical settings. Furthermore, the association between neuro-vulnerability and eating disorders, as well as its contribution to obesity, is examined. Potential therapeutic interventions targeting neuro-vulnerability, including pharmacological treatments and lifestyle modifications, are reviewed. In conclusion, understanding the concept of neuro-vulnerability in energy metabolism regulation is crucial for addressing metabolic disorders. This review provides valuable insights into the underlying neurobiological mechanisms and their implications for metabolic health. Targeting neuro-vulnerability holds promise for developing innovative strategies in the prevention and treatment of metabolic disorders, ultimately improving metabolic health outcomes.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos , Obesidade , Humanos , Obesidade/metabolismo , Apetite , Hormônios/metabolismo , Metabolismo Energético/fisiologia , Ingestão de Alimentos
14.
Nutrients ; 15(12)2023 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-37375654

RESUMO

The Western diet is a modern dietary pattern characterized by high intakes of pre-packaged foods, refined grains, red meat, processed meat, high-sugar drinks, candy, sweets, fried foods, conventionally raised animal products, high-fat dairy products, and high-fructose products. The present review aims to describe the effect of the Western pattern diet on the metabolism, inflammation, and antioxidant status; the impact on gut microbiota and mitochondrial fitness; the effect of on cardiovascular health, mental health, and cancer; and the sanitary cost of the Western diet. To achieve this goal, a consensus critical review was conducted using primary sources, such as scientific articles, and secondary sources, including bibliographic indexes, databases, and web pages. Scopus, Embase, Science Direct, Sports Discuss, ResearchGate, and the Web of Science were used to complete the assignment. MeSH-compliant keywords such "Western diet", "inflammation", "metabolic health", "metabolic fitness", "heart disease", "cancer", "oxidative stress", "mental health", and "metabolism" were used. The following exclusion criteria were applied: (i) studies with inappropriate or irrelevant topics, not germane to the review's primary focus; (ii) Ph.D. dissertations, proceedings of conferences, and unpublished studies. This information will allow for a better comprehension of this nutritional behavior and its effect on an individual's metabolism and health, as well as the impact on national sanitary systems. Finally, practical applications derived from this information are made.


Assuntos
Dieta , Carne Vermelha , Animais , Dieta Ocidental/efeitos adversos , Carne , Laticínios
15.
Nutrients ; 15(11)2023 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-37299557

RESUMO

Anorexia nervosa is a psychiatric disorder with an unknown etiology that is characterized by an individual's preoccupation with their weight and body structure while denying the severity of their low body weight. Due to the fact that anorexia nervosa is multifaceted and may indicate the coexistence of genetic, social, hormonal, and psychiatric disorders, a description of non-pharmacological interventions can be used to ameliorate or reduce the symptoms of this condition. Consequently, the purpose of the present narrative review is to describe the profile's context in the anorexic person as well as the support they would require from their family and environment. In addition, it is aimed at examining preventative and non-pharmacological interventions, such as nutritional interventions, physical activity interventions, psychological interventions, psychosocial interventions, and physical therapy interventions. To reach the narrative review aims, a critical review was conducted utilizing both primary sources, such as scientific publications, and secondary sources, such as bibliographic indexes, web pages, and databases. Nutritional interventions include nutritional education and an individualized treatment for each patient, physical activity interventions include allowing patients to perform controlled physical activity, psychological interventions include family therapy and evaluation of the existence of other psychological disorders, psychosocial interventions include management of the relationship between the patient and social media and physical therapy interventions include relaxation massages and exercises to relieve pain. All these non-pharmacological interventions need to be individualized based on each patient's needs.


Assuntos
Anorexia Nervosa , Humanos , Anorexia Nervosa/psicologia , Anorexia , Terapia Familiar
16.
Biomedicines ; 11(5)2023 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-37238961

RESUMO

Adipokines are cell-signaling proteins secreted by adipose tissue that has been related to a low-grade state of inflammation and different pathologies. The present review aims to analyze the role of adipokines in health and disease in order to understand the important functions and effects of these cytokines. For this aim, the present review delves into the type of adipocytes and the cytokines produced, as well as their functions; the relations of adipokines in inflammation and different diseases such as cardiovascular, atherosclerosis, mental diseases, metabolic disorders, cancer, and eating behaviors; and finally, the role of microbiota, nutrition, and physical activity in adipokines is discussed. This information would allow for a better understanding of these important cytokines and their effects on body organisms.

17.
Commun Biol ; 6(1): 523, 2023 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-37188768

RESUMO

There is increasing evidence that the complexity of the retinal vasculature measured as fractal dimension, Df, might offer earlier insights into the progression of coronary artery disease (CAD) before traditional biomarkers can be detected. This association could be partly explained by a common genetic basis; however, the genetic component of Df is poorly understood. We present a genome-wide association study (GWAS) of 38,000 individuals with white British ancestry from the UK Biobank aimed to comprehensively study the genetic component of Df and analyse its relationship with CAD. We replicated 5 Df loci and found 4 additional loci with suggestive significance (P < 1e-05) to contribute to Df variation, which previously were reported in retinal tortuosity and complexity, hypertension, and CAD studies. Significant negative genetic correlation estimates support the inverse relationship between Df and CAD, and between Df and myocardial infarction (MI), one of CAD's fatal outcomes. Fine-mapping of Df loci revealed Notch signalling regulatory variants supporting a shared mechanism with MI outcomes. We developed a predictive model for MI incident cases, recorded over a 10-year period following clinical and ophthalmic evaluation, combining clinical information, Df, and a CAD polygenic risk score. Internal cross-validation demonstrated a considerable improvement in the area under the curve (AUC) of our predictive model (AUC = 0.770 ± 0.001) when comparing with an established risk model, SCORE, (AUC = 0.741 ± 0.002) and extensions thereof leveraging the PRS (AUC = 0.728 ± 0.001). This evidences that Df provides risk information beyond demographic, lifestyle, and genetic risk factors. Our findings shed new light on the genetic basis of Df, unveiling a common control with MI, and highlighting the benefits of its application in individualised MI risk prediction.


Assuntos
Doença da Artéria Coronariana , Infarto do Miocárdio , Humanos , Estudo de Associação Genômica Ampla , Predisposição Genética para Doença , Infarto do Miocárdio/genética , Doença da Artéria Coronariana/genética , Fatores de Risco
18.
Artigo em Inglês | MEDLINE | ID: mdl-36901425

RESUMO

The aim of the present research was to analyze the effect of anxiety levels during the COVID-19 pandemic in the use of social media and compliance with lockdown measures during the confinement. A total of 1723 participants (32.1% males and 77.9% females; 32.6 ± 9.2 years) were interviewed by a Spanish version of the Spielberger State-Trait Anxiety Inventory. From the results obtained, the sample was divided into two 50th percentile groups, a high anxiety group (HAG) and a low anxiety group (LAG). We found how the LAG had lower use of social networks such as Facebook and Twitter during confinement. Also, this group presented a higher rate of leaving home during the confinement and higher values in people with whom they had lived with during confinement than high anxiety group. Regardless of the lack of results in the remaining variables, the present study nuances the high levels of anxiety experienced during COVID-19 confinement. The multifactorial analysis of factors related to the perception of anxiety during COVID-19 confinement may be a useful tool to measure multiple social behaviors when examining mental health factors. Thus, explaining and preventing the psychological consequences of the COVID-19 pandemic. The present knowledge could be used to determine key intervention factors for reducing the perception of fear and anxiety.


Assuntos
COVID-19 , Mídias Sociais , Masculino , Feminino , Humanos , COVID-19/psicologia , SARS-CoV-2 , Pandemias/prevenção & controle , Controle de Doenças Transmissíveis , Ansiedade
19.
Nutr Health ; 29(2): 277-285, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35023408

RESUMO

Background: The adaptation of Parenteral Nutrition (PN) to actual energy requirements of hospitalised patients is essential, since excessive and insufficient nutritional intake have been associated with poor clinical outcomes. Aim: To evaluate the adaptation of prescribed PN to the estimated nutritional requirements using three predictive equations and the influence of excessive/insufficient nutrient intake on patient clinical outcomes (nutritional parameters, metabolic and infectious complications). Methods: Prospective, observational study in hospitalised patients nutritionally assessed. Data was collected the first and fifth/sixth day of PN with clinical (infection, length of hospital stay), biochemical (visceral proteins, cholesterol, glucose, triglycerides, lymphocytes, CRP) and anthropometric parameters (skin folds, height, weight). Theoretical requirements were calculated using Harris-Benedict (HB), Mifflin-St Jeor (MF) and 25 Kcal/Kg/day formulas. The HB formula was used to compare estimated and provided requirements. Results: A total of 94 patients (mean: 72 ± 13.7 years old) were included with initial mean weight and height of 69.2 Kg and 162.8 cm, respectively (mean BMI: 26.1 Kg/m2). No statistically significant differences were found between the actual (1620 Kcal/day) and estimated caloric mean calculated with HB (1643 Kcal/day) and MF (1628 Kcal/day). When comparing with the caloric estimation, 31.9% of patients were underfed, while 14.9% were overfed. Intergroup analysis demonstrated significant variations in albumin, prealbumin, glucose, cholesterol, triglycerides and MUAC, with a significant increase of hyperglycaemia (+37.86; p < 0.05) and hypertriglyceridemia (+63.10; p < 0.05), being higher in overfed patients. Conclusion: In our study, inadequate nutrient intake was associated with a higher degree of hyperglycaemia and hypertriglyceridemia, without positive impact on anthropometric parameters.


Assuntos
Ingestão de Energia , Hipertrigliceridemia , Humanos , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Estudos Prospectivos , Nutrição Parenteral , Triglicerídeos
20.
Mol Oncol ; 17(1): 98-118, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36409196

RESUMO

Uterine serous carcinoma (USC) is an aggressive form of endometrial cancer (EC), characterized by its high propensity for metastases. In fact, while endometrioid endometrial carcinoma (EEC), which accounts for 85% of EC, presents a good prognosis, USC is the most frequently fatal. Herein, we used for the first time a peptide-based tyrosine-kinase-activity profiling approach to quantify the changes in tyrosine kinase activation between USC and EEC. Among the tyrosine kinases highly activated in USC, we identified focal adhesion kinase (FAK). We conducted mechanistic studies using cellular models. In a USC cell line, targeting FAK either by inhibitors PF-573228 and defactinib (VS-6063) or by gene silencing limits 3D cell growth and reduces cell migration. Moreover, results from our studies suggest that oxidative stress is increased in USC tumors compared to EEC ones. Reactive oxygen species (ROS) induce tyrosine phosphorylation of FAK and a concomitant tyrosine phosphorylation of paxillin, a mediator of FAK signal transduction. Mechanistically, by tracking hundreds of individual cells per condition, we show that ROS increased cell distance and migration velocity, highlighting the role of ROS-FAK-PAX signaling in cell migration. Both defactinib and ROS scavenger N-acetylcysteine (NAC) revert this effect, pointing toward ROS as potential culprits for the increase in USC cell motility. A proof of concept of the role of FAK in controlling cell growth was obtained in in vivo experiments using cancer-tissue-originated spheroids (CTOS) and a patient-derived orthotopic xenograft model (orthoxenograft/PDOX). Defactinib reduces cell proliferation and protein oxidation, supporting a pro-tumoral antioxidant role of FAK, whereas antioxidant NAC reverts FAK inhibitor effects. Overall, our data points to ROS-mediated FAK activation in USC as being responsible for the poor prognosis of this tumor type and emphasize the potential of FAK inhibition for USC treatment.


Assuntos
Antioxidantes , Cistadenocarcinoma Seroso , Quinase 1 de Adesão Focal , Humanos , Antioxidantes/metabolismo , Linhagem Celular Tumoral , Movimento Celular , Cistadenocarcinoma Seroso/tratamento farmacológico , Cistadenocarcinoma Seroso/patologia , Quinase 1 de Adesão Focal/metabolismo , Estresse Oxidativo , Fosforilação , Espécies Reativas de Oxigênio , Tirosina/metabolismo , Animais
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