Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 186
Filtrar
1.
Neurol Neuroimmunol Neuroinflamm ; 11(5): e200276, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38917381

RESUMO

OBJECTIVES: To report the association of zinc finger and SCAN domain containing 1 antibodies (ZSCAN1-abs) with rapid-onset obesity, hypothalamic dysfunction, hypoventilation, and autonomic dysregulation (ROHHAD) syndrome in patients without tumor. METHODS: Patients with symptoms compatible with ROHHAD syndrome but without an associated tumor were selected from our database. Serum and CSF samples were examined for the presence of ZSCAN1-abs by an in-house cell-based assay. In addition, samples from 149 patients with several inflammatory and noninflammatory disorders and 50 healthy participants served as controls. RESULTS: Thirteen patients with ROHHAD syndrome were identified. Of these, we had paired serum/CSF samples from 6 patients and only serum from the other 7. Five of 6 patients (83.3%) with paired serum/CSF (4 children, 1 adult) had ZSCAN-abs only in CSF and 1 had antibodies in serum and CSF. ZSCAN1-abs were not detected in the remaining 7 patients with ROHHAD with only serum available or in any of the 199 control samples. DISCUSSION: Patients with ROHHAD syndrome should be investigated for the presence of ZSCAN1-abs in CSF. The antibodies do not necessarily predict the presence of a tumor. The detection of ZSCAN1-abs in an adult patient suggests that this condition also occurs beyond the pediatric age.


Assuntos
Autoanticorpos , Doenças Hipotalâmicas , Humanos , Masculino , Adulto , Feminino , Criança , Autoanticorpos/sangue , Autoanticorpos/líquido cefalorraquidiano , Doenças Hipotalâmicas/imunologia , Doenças Hipotalâmicas/sangue , Doenças Hipotalâmicas/líquido cefalorraquidiano , Adolescente , Fatores de Transcrição/imunologia , Hipoventilação/sangue , Hipoventilação/imunologia , Hipoventilação/líquido cefalorraquidiano , Doenças do Sistema Nervoso Autônomo/imunologia , Doenças do Sistema Nervoso Autônomo/sangue , Obesidade/imunologia , Adulto Jovem , Pessoa de Meia-Idade , Pré-Escolar , Síndrome
2.
Clin Chim Acta ; 559: 119722, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38734224

RESUMO

BACKGROUND AND OBJECTIVE: Pericardial Fluid (PF) is a rich reservoir of biologically active factors. Due to its proximity to the heart, the biochemical structure of PF may reflect the pathological changes in the cardiac interstitial environment. This manuscript aimed to determine whether the PF level of cardiac troponins changes in patients undergoing cardiac surgery. METHODS: This scoping review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Medline, EMBASE, Cochrane, ClinicalTrials.gov, and Google Scholar databases were electronically searched for primary studies using the keywords "pericardial fluid," "troponin," and "cardiac surgery." The primary outcome of interest was changes in troponin levels within the PF preoperatively and postoperatively. Secondary outcomes of interest included comparisons between troponin level changes in the PF compared to plasma. RESULTS: A total of 2901 manuscripts were screened through a title and abstract stage by two independent blinded reviewers. Of those, 2894 studies were excluded, and the remaining seven studies underwent a full-text review. Studies were excluded if they did not provide data or failed to meet inclusion criteria. Ultimately, six articles were included that discussed cardiac troponin levels within the PF in patients who had undergone cardiac surgery. Pericardial troponin concentration increased over time after surgery, and levels were significantly higher in PF compared to serum. All studies found that the type of operation did not affect these overall observations. CONCLUSION: Our review of the literature suggest that the PF level of cardiac troponins increases in patients undergoing cardiac surgery, irrespective of the procedure type. However, these changes' exact pattern and clinical significance remain undefined.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Líquido Pericárdico , Troponina , Humanos , Líquido Pericárdico/química , Líquido Pericárdico/metabolismo , Troponina/análise , Troponina/sangue , Troponina/metabolismo
3.
Diabetes Metab Res Rev ; 40(4): e3810, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38757431

RESUMO

BACKGROUND: Metabolic dysfunction-associated fatty liver disease (MAFLD, 2020 diagnostic criteria) and glomerular hyperfiltration share common risk factors, including obesity, insulin resistance, impaired glucose tolerance, diabetes, dyslipidemia, and hypertension. AIMS: To assess the prevalence of MAFLD and its association with glomerular hyperfiltration and age-related worsening of kidney function in subjects with normoglycemia, prediabetes and type 2 diabetes mellitus (T2DM). METHODS: We analysed data recorded during occupational health visits of 125,070 Spanish civil servants aged 18-65 years with a de-indexed glomerular filtration rate (GFR) estimated with the chronic-kidney-disease-epidemiological (CKD-EPI) equation (estimated glomerular filtration rate [eGFR]) ≥60 mL/min. Subjects were categorised according to fasting plasma glucose levels <100 mg/dL (normoglycemia), ≥100 and ≤ 125 mg/dL (prediabetes), or ≥126 mg/dL and/or antidiabetic treatment (T2DM). The association between MAFLD and glomerular hyperfiltration, defined as a de-indexed eGFR above the age- and gender-specific 95th percentile, was assessed by multivariable logistic regression. RESULTS: In the whole study group, MAFLD prevalence averaged 19.3%. The prevalence progressively increased from 14.7% to 33.2% and to 48.9% in subjects with normoglycemia, prediabetes and T2DM, respectively (p < 0.001 for trend). Adjusted odds ratio (95% CI) for the association between MAFLD and hyperfiltration was 9.06 (8.53-9.62) in the study group considered as a whole, and 8.60 (8.03-9.21), 9.52 (8.11-11.18) and 8.31 (6.70-10.30) in subjects with normoglycemia, prediabetes and T2DM considered separately. In stratified analyses, MAFLD amplified age-dependent eGFR decline in all groups (p < 0.001). CONCLUSIONS: MAFLD prevalence increases across the glycaemic spectrum. MAFLD is significantly associated with hyperfiltration and amplifies the age-related eGFR decline.


Assuntos
Diabetes Mellitus Tipo 2 , Taxa de Filtração Glomerular , Estado Pré-Diabético , Humanos , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/fisiopatologia , Diabetes Mellitus Tipo 2/complicações , Estado Pré-Diabético/epidemiologia , Estado Pré-Diabético/fisiopatologia , Masculino , Feminino , Pessoa de Meia-Idade , Estudos Transversais , Adulto , Idoso , Adulto Jovem , Adolescente , Glicemia/análise , Fatores de Risco , Prevalência , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Hepatopatia Gordurosa não Alcoólica/fisiopatologia , Prognóstico , Seguimentos , Biomarcadores/sangue , Biomarcadores/análise , Nefropatias Diabéticas/epidemiologia , Nefropatias Diabéticas/fisiopatologia , Nefropatias Diabéticas/etiologia
4.
Nutr Hosp ; 2024 May 28.
Artigo em Espanhol | MEDLINE | ID: mdl-38804986

RESUMO

OBJECTIVE: the aim of our study was to assess the effect of bariatric surgery on obstetric outcomes. MATERIAL AND METHODS: a retrospective cohort study was conducted, including 54 pregnancies post-bariatric surgery and 219 pregnancies in non-operated obese women, from December 2018 to January 2023. Various maternal and obstetric characteristics were evaluated, ranging from baseline data to antepartum, intrapartum, postpartum, and neonatal outcomes. RESULTS: bariatric surgery showed a significant 69 % reduction in the risk of gestational diabetes (GDM) (p = 0.045) and a 63.1 % reduction in cesarean sections (p = 0.014), but also a notable increase in the risk of miscarriage (3.5 times more, p = 0.046) and intrauterine growth restriction (35 times more, p = 0.009). Bariatric surgery was associated with a significant prolongation of postpartum hospital stay (7.5 times more, p = 0.001) and a decrease in the average weight of the newborn (213.71 g, p = 0.006). CONCLUSION: pregnancy after bariatric surgery presents benefits, such as a reduced risk of gestational diabetes (GDM) and cesarean section, but also presents challenges, such as an increased risk of miscarriage and intrauterine growth restriction (IUGR). These results highlight the importance of specialized obstetric care to optimize maternal-fetal outcomes in pregnant women with a history of bariatric surgery.

5.
Int J Mol Sci ; 25(8)2024 Apr 13.
Artigo em Inglês | MEDLINE | ID: mdl-38673888

RESUMO

Urease, a pivotal enzyme in nitrogen metabolism, plays a crucial role in various microorganisms, including the pathogenic Helicobacter pylori. Inhibiting urease activity offers a promising approach to combating infections and associated ailments, such as chronic kidney diseases and gastric cancer. However, identifying potent urease inhibitors remains challenging due to resistance issues that hinder traditional approaches. Recently, machine learning (ML)-based models have demonstrated the ability to predict the bioactivity of molecules rapidly and effectively. In this study, we present ML models designed to predict urease inhibitors by leveraging essential physicochemical properties. The methodological approach involved constructing a dataset of urease inhibitors through an extensive literature search. Subsequently, these inhibitors were characterized based on physicochemical properties calculations. An exploratory data analysis was then conducted to identify and analyze critical features. Ultimately, 252 classification models were trained, utilizing a combination of seven ML algorithms, three attribute selection methods, and six different strategies for categorizing inhibitory activity. The investigation unveiled discernible trends distinguishing urease inhibitors from non-inhibitors. This differentiation enabled the identification of essential features that are crucial for precise classification. Through a comprehensive comparison of ML algorithms, tree-based methods like random forest, decision tree, and XGBoost exhibited superior performance. Additionally, incorporating the "chemical family type" attribute significantly enhanced model accuracy. Strategies involving a gray-zone categorization demonstrated marked improvements in predictive precision. This research underscores the transformative potential of ML in predicting urease inhibitors. The meticulous methodology outlined herein offers actionable insights for developing robust predictive models within biochemical systems.


Assuntos
Inibidores Enzimáticos , Aprendizado de Máquina , Urease , Urease/antagonistas & inibidores , Urease/química , Urease/metabolismo , Inibidores Enzimáticos/química , Inibidores Enzimáticos/farmacologia , Helicobacter pylori/enzimologia , Helicobacter pylori/efeitos dos fármacos , Algoritmos , Humanos
6.
Plants (Basel) ; 13(4)2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38498532

RESUMO

Inflammation is the immune system's first biological response to infection, injury, or irritation. Evidence suggests that the anti-inflammatory effect is mediated by the regulation of various inflammatory cytokines, such as nitric oxide, interleukins, tumor necrosis factor alpha-α, interferon gamma-γ, as well as the non-cytokine mediator, prostaglandin E2. Currently, the mechanism of action and clinical usefulness of phytochemicals is known; their action on the activity of cytokines, free radicals, and oxidative stress. The latter are of great relevance in the development of diseases, such that the evidence collected demonstrates the beneficial effects of phytochemicals in maintaining health. Epidemiological evidence indicates that regular consumption of fruits and vegetables is related to a low risk of developing cancer and other chronic diseases.

7.
Nutr Hosp ; 41(2): 330-337, 2024 Apr 26.
Artigo em Espanhol | MEDLINE | ID: mdl-38328956

RESUMO

Introduction: Objective: to assess the effectiveness of immunonutrition (IN) compared to standard nutritional formulas in patients undergoing gastric cancer surgery. Material and methods: this is a real-life, observational retrospective cohort study. It included 134 patients, all of whom underwent gastrectomy at Montecelo Hospital between December 2019 and December 2022. Group A (N = 79 patients) received standard nutrition, and Group B (N = 55 patients) received formulas containing arginine, nucleotides, omega-3 fatty acids, and extra virgin olive oil. This protocol was carried out both pre and postoperatively for an average period of 10 days. The study evaluated hospital stay, the need for parenteral nutrition (PN), postoperative complications, as well as anthropometric and laboratory variables. Statistical analyses were performed using Stata 16.1.® Results: in the IN group compared to the standard nutrition group, the hospital stay was reduced by 34 % (p < 0.001). The number of patients requiring PN decreased by 21.1 % (p = 0.022), and its duration also decreased by 33.2 % (p < 0.001). The risk of infectious complications was lower with IN, specifically 70.1 % less (p < 0.001). As for other postoperative complications, IN reduced the risk of intestinal obstruction by 84 % (p < 0.002), suture dehiscence by 90.9 % (p < 0.001), blood transfusion by 99.8 % (p < 0.001), pleural effusion by 90.9 % (p = 0.021), acute renal failure by 84.02 % (p = 0.047), and surgical re-intervention by 69.93 % (p < 0.011). In the IN group, there was less weight loss (p = 0.048) and a smaller decrease in postoperative albumin (p = 0.005) and cholesterol (p < 0.001). Conclusion: immunonutrition reduces postoperative complications, decreases hospital stay, and optimizes nutritional outcomes.


Introducción: Objetivo: valorar la efectividad de la inmunonutrición (IN) frente a las fórmulas nutricionales estándar en pacientes operados de cáncer gástrico. Material y métodos: se trata de un estudio de vida real, de tipo observacional, retrospectivo y de cohortes. Para este estudio se incluyeron 134 pacientes, todos ellos sometidos a gastrectomía en en el Hospital Montecelo, entre diciembre de 2019 y diciembre de 2022. El grupo A (N = 79 pacientes) recibió nutrición estándar y el grupo B (N = 55 pacientes) recibió fórmulas con arginina, nucleótidos, ácidos grasos omega-3 y aceite de oliva virgen extra. Este protocolo se ha realizado de forma pre y postoperatoria por un periodo medio de 10 días. Se evaluaron el tiempo de estancia hospitalaria, la necesidad de nutrición parenteral (NPT), las complicaciones postoperatorias y las variables antropométricas y analíticas. Los análisis estadísticos se realizaron con el programa Stata 16.1.® Resultados: en el grupo de IN respecto al grupo de nutrición estándar: la estancia hospitalaria se reduce un 34 % (p < 0,001). La cantidad de pacientes que precisan NPT se reduce un 21,1 % (p = 0,022) y su duración también se reduce un 33,2 % (p < 0,001). El riesgo de complicaciones infecciosas es menor con la IN, concretamente un 70,1 % menos (p < 0,001). En cuanto a las otras complicaciones postoperatorias, la IN disminuye el riesgo de oclusión intestinal en un 84 % (p < 0,002), la dehiscencia de suturas en un 90,9 % (p < 0,001), la transfusión sanguínea en un 99,8 % (p < 0,001), el derrame pleural en un 90,9 % (p = 0,021), la insuficiencia renal aguda en un 84,02 % (p = 0,047) y la reintervención quirúrgica en un 69,93 % (p < 0,011). En el grupo de IN se observa una menor pérdida ponderal (p = 0,048) y una menor disminución de la albúmina (p = 0,005) y el colesterol postoperatorios (p < 0,001). Conclusión: la inmunonutrición reduce las complicaciones postoperatorias, disminuye la estancia hospitalaria y optimiza los resultados nutricionales.


Assuntos
Gastrectomia , Assistência Perioperatória , Complicações Pós-Operatórias , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/cirurgia , Masculino , Feminino , Estudos Retrospectivos , Pessoa de Meia-Idade , Idoso , Complicações Pós-Operatórias/prevenção & controle , Complicações Pós-Operatórias/epidemiologia , Gastrectomia/métodos , Assistência Perioperatória/métodos , Tempo de Internação , Estudos de Coortes , Nutrição Parenteral/métodos , Resultado do Tratamento , Ácidos Graxos Ômega-3/administração & dosagem , Dieta de Imunonutrição
8.
Nutr Hosp ; 41(1): 78-85, 2024 Feb 15.
Artigo em Espanhol | MEDLINE | ID: mdl-38095073

RESUMO

Introduction: Objective: to determine the effect of gestational weight gain and perinatal outcomes in obese women who underwent and did not undergo bariatric surgery. Material and methods: a retrospective observational cohort study was conducted. The gestational weight gain was classified as insufficient, adequate or excessive according to the guidelines of the United States Institute of Medicine: 4.99-9.07 kg for body mass index (BMI) > 30 kg/m2. Weight gain was calculated as the difference between the weight at the first visit of the 1st trimester and the weight at the visit of the 3rd trimester. Outcomes examined included antepartum variables (gestational diabetes, gestational hypertension, preeclampsia, premature rupture of membranes, placenta previa, placental abruption, intrauterine growth retardation, chorioammionitis, spontaneous abortion), intrapartum variables (induced delivery, vaginal delivery, vacuum, forceps delivery, cesarean section, shoulder dystocia), postpartum variables (postpartum hemorrhage, need for postpartum transfusion, postpartum anemia, need for emergency care, maternal death, postpartum tear, postpartum thrombosis) and neonatal variables (preterm delivery, weight percentile > 90, weight percentile < 10, Apgar score < 7, malformations). Using the statistical package SPSS 22.0, a statistical analysis of the data was performed. Results: two hundred and fifty-six women were recruited; 38 (14.58 %) were pregnant after bariatric surgery and 218 (85.15 %) were pregnant women with obesity who had not been operated on. Of the pregnant women with obesity who had not been operated on, 119 (46.68 %) had grade 1 obesity (BMI 30-34.9), and 99 (38.67 %) had grade 2 and 3 obesity (BMI > 35). A global and subgroup analysis was performed. In the overall analysis, 78 (30.46 %) had insufficient gain, 117 (45.70 %) had adequate gain, and 61 (23.82 %) excessive gain. Overall, insufficient weight gain was associated with a lower probability of gestational hypertension (p < 0.015) and forceps delivery (p < 0.000) and large for gestational age newborn (p < 0.000). On the other hand, insufficient weight gain was associated with a higher probability of intrauterine growth retardation (p 0.044), peripartum infection (0.022), preterm delivery (0.006), and delivery < 35 weeks (p 0.016). Excessive weight gain was associated with a higher probability of gestational hypertension (p 0.025), induced labor (p 0.009), forceps delivery (p 0.011) and large for gestational age newborn (p 0.006). Pregnancies after bariatric surgery had fewer overall complications compared to the other groups. Conclusions: insufficient and excessive weight gain worsens perinatal outcomes. Adequate weight gain does not increase complications and produces some benefits.


Introducción: Objetivo: determinar el efecto de la ganancia de peso gestacional y los resultados perinatales en mujeres con obesidad operadas y no operadas de cirugía bariátrica. Material y métodos: se realizó un estudio retrospectivo observacional de cohortes. La ganancia ponderal gestacional fue clasificada como insuficiente, adecuada o excesiva según las guías del Instituto de Medicina de Estados Unidos: 4,99-9,07 kg para índice de masa corporal (IMC) > 30 kg/m2. La ganancia ponderal se calculó con la diferencia entre el peso de la primera visita del primer trimestre y el peso en la visita del tercer trimestre. Los resultados examinados incluyeron variables anteparto (diabetes gestacional, hipertensión gestacional, preeclampsia, ruptura prematura de membranas, placenta previa, desprendimiento prematuro de placenta, retraso de crecimiento intrauterino, corioamnionitis, aborto espontáneo), intraparto (parto inducido, parto vaginal, ventosa, fórceps, cesárea, distocia de hombros), posparto (hemorragia posparto, necesidad de trasfusión posparto, anemia posparto, necesidad de asistencia a Urgencias, muerte materna, desgarro posparto, trombosis posparto) y neonatales (parto pretérmino, percentil peso > 90, percentil peso < 10, puntuación Apgar < 7, malformaciones). Mediante el paquete estadístico SPSS 22.0 se realizó un análisis estadístico de los datos. Resultados: se reclutaron 256 mujeres; 38 (14,58 %) eran gestantes poscirugía bariátrica y las 218 (85,15 %) restantes eran gestantes con obesidad no operadas. De las gestantes con obesidad no operadas, 119 (46,68 %) tenían obesidad grado 1 (IMC 30-34,9) y 99 (38,67 %) tenían obesidad grados 2 y 3 (IMC > 35). Se realizó un análisis global y por subgrupos. En el análisis global tuvieron ganancia insuficiente 78 (30,46 %), ganancia adecuada 117 (45,70 %) y excesiva 61 (23,82 %). En conjunto, la ganancia ponderal insuficiente se asoció con menor probabilidad de hipertensión arterial (HTA) gestacional (p 0,015) y parto con fórceps (p 0,000) y grande para edad gestacional (p 0,000). Por otro lado, la ganancia ponderal insuficiente se asoció a mayor probabilidad de retraso de crecimiento intrauterino (p 0,044), infección periparto (0,022), parto pretérmino (0,006) y parto < 35 semanas (p 0,016). La ganancia ponderal excesiva se asoció a mayor probabilidad de HTA gestacional (p 0,025), parto inducido (p 0,009), parto por fórceps (p 0,011) y grande para edad gestacional (p 0,006). Las gestaciones poscirugía bariátrica tuvieron menos complicaciones globales respecto al resto de grupos. Conclusiones: la ganancia ponderal insuficiente y excesiva empeora los resultados perinatales. La ganancia ponderal adecuada no aumenta las complicaciones y produce algunos beneficios.


Assuntos
Cirurgia Bariátrica , Ganho de Peso na Gestação , Hipertensão Induzida pela Gravidez , Complicações na Gravidez , Nascimento Prematuro , Recém-Nascido , Feminino , Gravidez , Humanos , Estados Unidos , Gestantes , Resultado da Gravidez , Complicações na Gravidez/epidemiologia , Complicações na Gravidez/etiologia , Hipertensão Induzida pela Gravidez/epidemiologia , Retardo do Crescimento Fetal , Cesárea , Estudos Retrospectivos , Placenta , Obesidade/complicações , Obesidade/cirurgia , Cirurgia Bariátrica/efeitos adversos , Aumento de Peso , Índice de Massa Corporal
9.
Intern Emerg Med ; 19(2): 535-545, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37865623

RESUMO

To investigate factors related to the development of hyperactive delirium in patients during emergency department (ED) stay and the association with short-term outcomes. A secondary analysis of the EDEN (Emergency Department and Elderly Needs) multipurpose multicenter cohort was performed. Patients older than 65 years arriving to the ED in a calm state and who developed confusion and/or psychomotor agitation requiring intravenous/intramuscular treatment during their stay in ED were assigned to delirium group. Patients with psychiatric and epileptic disorders and intracranial hemorrhage were excluded. Thirty-four variables were compared in both groups and outcomes were adjusted for age, sex, Charlson Comorbidity Index, Barthel Index and polypharmacy. Hyperactive delirium that needed treatment were developed in 301 out of 18,730 patients (1.6%). Delirium was directly associated with previous episodes of delirium (OR: 2.44, 95% CI 1.24-4.82), transfer to the ED observation unit (1.62, 1.23-2.15), chronic treatment with opiates (1.51, 1.09-2.09) and length of ED stay longer than 12 h (1.41, 1.02-1.97) and was indirectly associated with chronic kidney disease (0.60, 0.37-0.97). The 30-day all-cause mortality was 4.0% in delirium group and 2.9% in non-delirium group (OR: 1.52, 95% CI 0.83-2.78), need for hospitalization 25.6% and 25% (1.09, 0.83-1.43), in-hospital mortality 16.4% and 7.3% (2.32, 1.24-4.35), prolonged hospitalization 54.5% and 48.6% (1.27, 0.80-2.00), respectively, and 90-day post-discharge combined adverse event 36.4% and 35.8%, respectively (1.06, 0.82-2.00). Patients with previous episodes of delirium, treatment with opioids and longer stay in ED more frequently develop delirium during ED stay and preventive measures should be taken to minimize the incidence. Delirium is associated with in-hospital mortality during the index event.


Assuntos
Delírio , Humanos , Idoso , Tempo de Internação , Delírio/epidemiologia , Delírio/etiologia , Agitação Psicomotora/complicações , Assistência ao Convalescente , Alta do Paciente , Serviço Hospitalar de Emergência , Fatores de Risco
10.
Cancers (Basel) ; 15(23)2023 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-38067397

RESUMO

BACKGROUND: Oral squamous cell carcinoma (OSCC) is characterized by an immunosuppressive tumor microenvironment. Their plasma-derived exosomes deliver immunomodulatory molecules and cargo that correlate significantly with clinical parameters. This study aims to assess the exosomal profile as a potential tool for early detection of relapse and long-term outcomes in OSCC patients undergoing conventional therapy. METHODS: 27 OSCC patients with a median 38-month follow-up were included in this study. The relationship between NTA-derived parameters and clinical pathological parameters was examined, and receiver operating characteristic (ROC) curves were utilized to evaluate the diagnostic efficacy of these values in detecting cancer relapse. RESULTS: Plasmatic levels of exosomes prior to surgery showed a drastic reduction after surgical intervention (8.08E vs. 1.41 × 109 particles/mL, p = 0.006). Postsurgical concentrations of exosomes were higher in patients who experienced relapse compared to those who remained disease-free (2.97 × 109 vs. 1.11 × 109 particles/mL, p = 0.046). Additionally, patients who relapsed exhibited larger exosome sizes after surgery (141.47 vs. 132.31 nm, p = 0.03). Patients with lower concentrations of exosomes prior to surgery demonstrated better disease-free survival compared to those with higher levels (p = 0.012). ROC analysis revealed an area under the curve of 0.82 for presurgical exosome concentration in identifying relapse. CONCLUSIONS: Presurgical exosomal plasmatic levels serve as independent predictors of early recurrence and survival in OSCC. All in all, our findings indicate that the detection of peripheral exosomes represents a novel tool for the clinical management of OSCC, with potential implications for prognosis assessment.

11.
Nutrients ; 15(24)2023 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-38140381

RESUMO

BACKGROUND: Insulin resistance (IR) is an alteration of the action of insulin in cells, which do not respond adequately to this action, leading to an increase in blood glucose levels. IR produces a very diverse clinical picture and increases the cardiometabolic risk of the population that suffers from it. Among the factors that influence IR are genetics, unhealthy lifestyle habits, overweight, and obesity. The objective of this work was to determine how different sociodemographic variables and healthy habits influence the values of different scales that assess the risk of presenting IR in a group of Spanish workers. METHODS: An observational, cross-sectional, descriptive study was carried out in 386,924 workers from different Spanish regions. Different sociodemographic variables and lifestyle habits were studied (age, social class, educational level, smoking, Mediterranean diet, physical exercise) along with their association with four scales to evaluate the risk of insulin resistance (TyG index, TyG-BMI, METS-IR, TG/HDL-c). To analyse the quantitative variables, Student's t test was used, while the Chi-squared test was used for the qualitative variables. A multinomial logistic regression analysis was performed, calculating the odds ratio with its 95% confidence intervals. The accepted level of statistical significance was set at p < 0.05. RESULTS: In the multivariate analysis, all variables, except educational level, increased the risk of presenting high values on the IR risk scales, especially a sedentary lifestyle and low adherence to the Mediterranean diet. CONCLUSIONS: Our results demonstrate an association between the practice of regular physical exercise and a reduction in the risk of IR; a strong role of the Mediterranean diet as a protective factor for IR; an association between aging and increased IR, which has also been suggested in other studies; and, finally, a relationship between a low socioeconomic level and an increase in IR.


Assuntos
Resistência à Insulina , Humanos , Estudos Transversais , Índice de Massa Corporal , Obesidade , Sobrepeso , Triglicerídeos , Glicemia/análise
12.
J Crohns Colitis ; 2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37930823

RESUMO

INTRODUCTION: Intra-abdominal abscesses complicating Crohn's disease (CD) are a challenging situation. Their management, during the hospitalization and after resolution, is still unclear. METHODS: Adult patients with CD complicated with intraabdominal abscess who required hospitalization were included from the prospectively maintained ENEIDA registry from GETECCU. Initial strategy effectiveness and safety to resolve abscess was assessed. Survival analysis was performed to evaluate recurrence risk. Predictive factors associated with resolution were evaluated by multivariate regression and predictive factors associated with recurrence were assessed by Cox regression. RESULTS: 520 patients from 37 Spanish hospitals were included; 322 (63%) were initially treated with antibiotics alone, 128 (26%) with percutaneous drainage, and 54 (17%) with surgical drainage. The size of the abscess was critical to the effectiveness of each treatment. In abscesses < 30mm, the antibiotic was as effective as percutaneous or surgical drainage. However, in larger abscesses, percutaneous or surgical drainage was superior. In abscesses > 50mm, surgery was superior to percutaneous drainage, although it was associated with a higher complication rate. After abscess resolution, luminal resection was associated with a lower 1-year abscess recurrence risk (HR 0.43, 95% CI 0.24-0.76). However, those patients who initiated anti-TNF therapy had a similar recurrence risk whether luminal resection had been performed. CONCLUSIONS: Small abscesses (<30mm) can be managed with antibiotics alone, while larger ones require drainage. Percutaneous drainage will be effective and safer than surgery in many cases. After discharge, anti-TNF therapy reduces abscess recurrence risk in a similar way to bowel resection.

13.
Immun Inflamm Dis ; 11(10): e1054, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37904687

RESUMO

INTRODUCTION: Waning immunity after vaccination justifies the need for additional effective COVID-19 treatments. Immunomodulation of local immune response at the oropharyngeal mucosa could hypothetically activate mucosal immunity, which can prevent SARS-CoV-2 main immune evasion mechanisms in early stages of the disease and send an effective warning to other components of immune system. Olive polyphenols are biologically active compounds with immunomodulatory activity. There are previous studies based on immunomodulation with olive polyphenols and respiratory infections using an enteral route, which point to potential effects on time to resolution of symptoms. The investigators sought to determine whether participants following immunomodulation with tiny quantities of high polyphenolic olive oil administered through an oromucosal route could have a better outcome in COVID-19. SUMMARY: This pilot clinical trial investigated the effect of buccopharyngeal administered high polyphenolic olive oil on COVID-19 incidence, duration, and severity. IMPORTANCE: Waning immunity after vaccination justifies the need of further research for additional effective treatments for COVID-19. OBJECTIVE: Immunomodulation of local immune response at the buccopharyngeal mucosa could hypothetically activate mucosal immunity, which would in turn difficult SARS-CoV-2 immune evasion mechanisms in early stages of the disease and send an effective warning to other components of immune system. Olive polyphenols are biologically active compounds with immunomodulatory activity. There are previous studies based on immunomodulation with olive polyphenols and respiratory infections, using an enteral route, which suggest potential shortening of time to resolution of symptoms. The investigators sought to determine whether participants following immunomodulation with tiny quantities of high polyphenolic olive oil administered through an oromucosal route could have a better outcome in COVID-19. DESIGN, SETTING, AND PARTICIPANTS: Double blind, randomized pilot clinical trial conducted at a single site, Talavera de la Reina, Spain. Potential study participants were identified by simple random sampling from the epidemiological database of contact patients recently diagnosed of COVID-19 during the study period. A total of 88 adult participants were enrolled and 84 completed the 3-month study, conducted between July 1, 2021 and August 31, 2022. INTERVENTION: Participants were randomized to receive oromucosal administered high polyphenolic olive oil, 2 mL twice a day for 3 months or no treatment. MAIN OUTCOME AND MEASURES: Primary outcomes were incidence, duration, and severity of COVID-19 after intervention. RESULTS: There were no differences in incidence between both groups but there were significant differences in duration, the median time to resolution of symptoms was 3 days in the high polyphenolic olive oil group compared with 7 days in the no-treatment group. Although time to resolution is directly related to severity, this study did not find any differences in severity. CONCLUSION AND RELEVANCE: Among full-vaccinated adults recent infected with COVID-19, a daily intake of tiny quantities of oromucosal administered high polyphenolic olive oil before infection significantly improved the time to symptom resolution. This finding strongly support the appropriateness of further deep research on the use of oromucosal administered high polyphenolic olive oil as an effective immune strategy against COVID-19.


Assuntos
COVID-19 , Adulto , Humanos , SARS-CoV-2 , Azeite de Oliva , Resultado do Tratamento , Fatores de Tempo
14.
Harmful Algae ; 128: 102498, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37714579

RESUMO

Algal toxins are involved in the mortality and/or illness of marine organisms via consumption of contaminated prey, or upon direct exposure to toxic cells. In this study, the presence of potentially toxic microalgal cells was investigated within the digestive tract contents of a threatened species of green turtle (Chelonia mydas). Additionally, lipophilic toxins were determined by LC-MS/MS in tissue samples (liver, stomach and/or intestine) of selected animals (n = 39 individuals) found dead-stranded in southern Brazil, from winter/2015 to autumn/2016. Thirteen potentially toxic species of microalgae (both benthic and planktonic), including seven dinoflagellates, six cyanobacteria and one diatom, were found in the digestive tract contents of green turtles. Among them, dinoflagellates belonging to the Dinophysis acuminata species complex were the most frequent (36%) and abundant (maximum average abundance of 566 cells g-1 in spring/2015). Moreover, 23% of the examined sea turtles exhibited detectable levels of the diarrhetic shellfish toxin okadaic acid (OA) in washed digestive tissues. Seven individuals accumulated OA in their intestines (max. 24.1 ng g-1) and two in the stomachs (max. 7.4 ng g-1). Toxin levels in the tissues were directly and significantly (r = 0.70, p < 0.025) associated with the cell abundance of OA-producing D. acuminata and Prorocentrum lima species complexes within the digestive contents of green turtles. Although OA concentrations were relatively low, possible chronic exposure might deteriorate general health conditions of exposed sea turtles, increasing the risk for diseases. Okadaic acid has been regarded as a tumor-promoting compound and an environmental co-factor in the incidence of fibropapillomatosis, a frequent disease in juvenile green turtles inhabiting this geographic region. Even though, only one green turtle containing OA in the digestive tissues (out of six examined) also presented fibropapillomatosis in this study. Notwithstanding, sea turtles are sentinels of ocean health. Monitoring the accumulation of algal toxins and their negative effects on these organisms contributes to conserving biodiversity and marine habitats.


Assuntos
Dinoflagellida , Microalgas , Toxinas Biológicas , Tartarugas , Animais , Brasil , Cromatografia Líquida , Ácido Okadáico , Espectrometria de Massas em Tandem , Trato Gastrointestinal , Frutos do Mar
15.
Diagnostics (Basel) ; 13(17)2023 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-37685272

RESUMO

Introduction, objectives: Although cardiovascular events have been traditionally associated mainly with men, some data reflect an increase in women, which may even exceed their male counterparts, constituting the leading cause of death in working women in Spain. The objective of this present study was to analyze the level of cardiovascular risk in Spanish working women by assessing the influence of age, type of work, and tobacco consumption. MATERIAL, METHODS: A descriptive cross-sectional study was carried out in 172,282 working women from different Spanish geographical areas and from different companies between January 2018 and June 2020. A range of variables and risk factors were assessed and various cardiovascular risk scales were used to analyze the data. RESULTS: An increase in cardiovascular risk was observed in the least qualified work groups, mainly corresponding to blue-collar workers, when using the SCORE or REGICOR risk equation. The prevalence of altered values for all the parameters analyzed (overweight and obesity, hypertension, dyslipidemia, diabetes, fatty liver, hepatic fibrosis, atherogenic indexes, and cardiovascular risk scales) was higher among blue-collar women. Age was the only factor that influenced all the cardiovascular risk scales studied, increasing risk when comparing the group of women aged 50 years and older with the others. CONCLUSIONS: Aging and belonging to the blue-collar job category meant worse results in the cardiovascular risk scales and in all the parameters analyzed. This is in line with numerous studies that argue that age and zip code are more influential than genetic code.

16.
J Clin Med ; 12(10)2023 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-37240672

RESUMO

Post-operative atrial fibrillation (POAF) is the most common arrhythmia in the post-operative period after cardiac surgery. We aim to investigate the main clinical, local, and/or peripheral biochemical and molecular predictors for POAF in patients undergoing coronary and/or valve surgery. Between August 2020 and September 2022, consecutive patients undergoing cardiac surgery without previous history of AF were studied. Clinical variables, plasma, and biological tissues (epicardial and subcutaneous fat) were obtained before surgery. Pre-operative markers associated with inflammation, adiposity, atrial stretch, and fibrosis were analyzed on peripheral and local samples with multiplex assay and real-time PCR. Univariate and multivariate logistic regression analyses were performed in order to identify the main predictors for POAF. Patients were followed-up until hospital discharge. Out of 123 consecutive patients without prior AF, 43 (34.9%) developed POAF during hospitalization. The main predictors were cardiopulmonary bypass time (odds ratio (OR) 1.008 (95% confidence interval (CI), 1.002-1.013), p = 0.005), and plasma pre-operative orosomucoid levels (OR 1.008 (1.206-5.761). After studying differences regarding sex, orosomucoid was the best predictor for POAF in women (OR 2.639 (95% CI, 1.455-4.788), p = 0.027) but not in men. The results support the pre-operative inflammation pathway as a factor involved in the risk of POAF, mainly in women.

17.
Diabetes Res Clin Pract ; 201: 110729, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37230296

RESUMO

AIMS: To investigate the prevalence of metabolic dysfunction-associated fatty liver disease (MAFLD) in prediabetes, visceral obesity, and preserved kidney function, and explore whether MAFLD is associated with hyperfiltration. METHODS: We analyzed data from 6697 Spanish civil servants, aged 18-65 years, with fasting plasma glucose ≥ 100 and ≤ 125 mg/dL (prediabetes, ADA), waist circumference ≥ 94 cm in men and ≥ 80 cm in women (visceral obesity, IDF) and de-indexed estimated glomerular filtration rate (eGFR) ≥ 60 ml/min, collected during occupational health visits. The association between MAFLD and hyperfiltration (eGFR > age- and sex-specific 95th percentile) was tested by multivariable logistic regression analyses. RESULTS: Overall, 4213 patients (62.9%) had MAFLD, and 330 (4.9%) were hyperfiltering. MAFLD was more frequent in hyperfiltering than in non-hyperfiltering subjects (86.4% vs 61.7%, P < 0.001). BMI, waist circumference, systolic, diastolic, mean arterial pressure, and prevalence of hypertension were higher in hyperfiltering than in non-hyperfiltering subjects (P < 0.05). MAFLD was independently associated with hyperfiltration, even after adjusting for common confounders [OR (95% CI): 3.36 (2.33-4.84), P < 0.001]. In stratified analyses MAFLD potentiated age-related eGFR decline vs. non-MAFLD (P < 0.001). CONCLUSIONS: More than half of subjects with prediabetes, visceral obesity and eGFR ≥ 60 ml/min presented MAFLD that was associated with hyperfiltration and potentiated the age-related eGFR decline.


Assuntos
Nefropatias , Estado Pré-Diabético , Masculino , Humanos , Feminino , Estudos Transversais , Obesidade Abdominal/epidemiologia , Glomérulos Renais , Taxa de Filtração Glomerular
18.
J Clin Med ; 12(6)2023 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-36983274

RESUMO

BACKGROUND: Cardiac amyloidosis (CA) could be a common cause of heart failure (HF). The objective of the study was to estimate the prevalence of CA in patients with HF. METHODS: Observational, prospective, and multicenter study involving 30 Spanish hospitals. A total of 453 patients ≥ 65 years with HF and an interventricular septum or posterior wall thickness > 12 mm were included. All patients underwent a 99mTc-DPD/PYP/HMDP scintigraphy and monoclonal bands were studied, following the current criteria for non-invasive diagnosis. In inconclusive cases, biopsies were performed. RESULTS: The vast majority of CA were diagnosed non-invasively. The prevalence was 20.1%. Most of the CA were transthyretin (ATTR-CM, 84.6%), with a minority of cardiac light-chain amyloidosis (AL-CM, 2.2%). The remaining (13.2%) was untyped. The prevalence was significantly higher in men (60.1% vs 39.9%, p = 0.019). Of the patients with CA, 26.5% had a left ventricular ejection fraction less than 50%. CONCLUSIONS: CA was the cause of HF in one out of five patients and should be screened in the elderly with HF and myocardial thickening, regardless of sex and LVEF. Few transthyretin-gene-sequencing studies were performed in older patients. In many patients, it was not possible to determine the amyloid subtype.

19.
Nutrients ; 15(4)2023 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-36839270

RESUMO

BACKGROUND: Obesity has become a public health problem in our society and is associated with many diseases, including type 2 diabetes mellitus, cardiovascular diseases, dyslipidemia, respiratory diseases, and cancer. Several studies relate weight loss in obese patients to improved anthropometric measurements and cardiometabolic risk. The objective of our study was to evaluate anthropometric changes, analytical parameters, insulin resistance, fatty liver, and metabolic scales, after a personalized weight loss program, through dietary advice to increase adherence to the Mediterranean diet and a motivational booster via mobile SMS messaging. METHODS: Intervention study on a sample of 1964 workers, in which different anthropometric parameters were evaluated before and after dietary intervention: the metabolic score of insulin resistance; non-alcoholic fatty liver disease using different scales; metabolic syndrome; atherogenic dyslipidemia; and the cardiometabolic index. A descriptive analysis of the categorical variables was performed, by calculating the frequency and distribution of the responses for each one. For quantitative variables, the mean and standard deviation were calculated, since they followed a normal distribution. Bivariate association analysis was performed by applying the chi-squared test (corrected by Fisher's exact statistic when conditions required it) and Student's t-test for independent samples (for comparison of means). RESULTS: The population subjected to the Mediterranean diet improved in all the variables evaluated at 12 months of follow-up and compliance with the diet. CONCLUSIONS: Dietary advice on a Mediterranean diet and its reinforcement with reminder messages through the use of mobile phones may be useful to improve the parameters evaluated in this study and reduce the cardiometabolic risk of patients.


Assuntos
COVID-19 , Dieta Mediterrânea , Obesidade , Sobrepeso , Humanos , Doenças Cardiovasculares , Diabetes Mellitus Tipo 2 , Resistência à Insulina , Obesidade/dietoterapia , Sobrepeso/dietoterapia , Programas de Redução de Peso , Envio de Mensagens de Texto , Motivação
20.
Bioprocess Biosyst Eng ; 46(4): 515-522, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36539643

RESUMO

Subtilisin Carlsberg (alkaline protease from Bacillus licheniformis) catalyzes the syntheses of high molecular weights (ca. 20 KDa) cationic α-poly-L-lysine and amphiphilic poly(α-L-lysine-co-L-phenylalanine) in neat organic solvent. The synthesis is conducted in liquid 1,1,1,2-tetrafluoroethane solvent, which is a hydrophobic non-toxic gas that does not deplete the ozone layer and approved for pharmaceutical applications. Solubility of substrates and adequate protease activity in this system with low water environment limits the reaction of hydrolysis of the growing peptide chains. The pressurization of this organic compressed fluid to liquid has low-pressure requirements (25 bar, 40 ºC), and its complete evaporation at atmospheric pressure after completing the reaction ensures solvent-free residues in products. The resulting polypeptides present null cytotoxicity according to MTT and NR analyses, as well as Calcein/EthD-1 assay in human cells.


Assuntos
Peptídeo Hidrolases , Polilisina , Humanos , Fenilalanina , Peptídeos , Solventes , Preparações Farmacêuticas , Catálise
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA