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Breast cancer health disparities are linked to clinical-pathological determinants, socioeconomic inequities, and biological factors such as genetic ancestry. These factors collectively interact in complex ways, influencing disease behavior, especially among highly admixed populations like Colombians. In this study, we assessed contributing factors to breast cancer health disparities according to genetic ancestry in Colombian patients from a national cancer reference center. We collected non-tumoral paraffin embedded (FFPE) blocks from 361 women diagnosed with breast cancer at the National Cancer Institute (NCI) to estimate genetic ancestry using a 106-ancestry informative marker (AIM) panel. Differences in European, Indigenous American (IA) and African ancestry fractions were analyzed according to potential sources of breast cancer health disparities, like etiology, tumor-biology, treatment administration, and socioeconomic-related factors using a Kruskal-Wallis test. Our analysis revealed a significantly higher IA ancestry among overweight patients with larger tumors and those covered by a subsidized health insurance. Conversely, we found a significantly higher European ancestry among patients with smaller tumors, residing in middle-income households, and affiliated to the contributory health regime, whereas a higher median of African ancestry was observed among patients with either a clinical, pathological, or stable response to neoadjuvant treatment. Altogether, our results suggest that the genetic legacy among Colombian patients, measured as genetic ancestry fractions, may be reflected in many of the clinical-pathological variables and socioeconomic factors that end up contributing to health disparities for this disease.
Assuntos
Neoplasias da Mama , Humanos , Feminino , Colômbia/epidemiologia , Neoplasias da Mama/genética , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/patologia , Neoplasias da Mama/etnologia , Pessoa de Meia-Idade , Adulto , Disparidades nos Níveis de Saúde , População Branca/genética , Idoso , Fatores SocioeconômicosRESUMO
BACKGROUND: Biomarkers play a role in identifying, managing, and predicting cancer outcomes. In lung cancer, they are used at various time points. Doubts remain regarding their accuracy for differential diagnosis and histological subtyping. A diagnostic test study was conducted. It included malignant lesions and controls with benign lesions. Before lung biopsy, all patients had the following biomarkers measured in serum (Pro-GRP,NSE,CYFRA21-1,SCC-Ag,CEA). METHODS: The predictive capacity of serum biomarkers was evaluated to discriminate between lung cancer and benign pathology. The accuracy was also assessed for distinguishing between SCLC and NSCLC and explored their ability to perform histological subtyping. RESULTS: 93 patients were included, 60 with lung cancer, 33 with benign pathology. Pro-GRP and NSE were elevated in SCLC compared with NSCLC or nonmalignant disease. The most accurate for differentiating between malignant and benign pathology were CEA and CYFRA21-1. Pro-GRP had a poor predictive capacity for distinguishing NSCLC from SCLC. However, combined with CEA and CYFRA21-1, performance improved. For SCLC, the diagnostic capacity of Pro-GRP increased by combining with biomarkers, such as NSE/CYFRA21-1. CONCLUSIONS: Biomarkers lacked the sensitivity and specificity for independent differential diagnosis or histological subtyping. However, the observed patterns in biomarker levels associated with specific histological subtypes suggest potential utility in a multi-biomarker approach or in conjunction with other diagnostic tools. This insight could guide future research to improve diagnostic accuracy and personalized treatment strategies in lung cancer.
Biomarkers are crucial for identifying, managing, and predicting outcomes in lung cancer, though they lack accuracy in differentiating histological subtypes.CEA and CYFRA21-1 were the most accurate biomarkers for distinguishing between malignant and benign pathology.Pro-GRP and NSE levels were elevated in SCLC compared to NSCLC. Pro-GRP alone had poor predictive capacity for differentiating NSCLC from SCLC, but combining it with CEA and CYFRA21-1 improved diagnostic performance.Patterns in biomarker levels suggest that a multi-biomarker approach, especially when combined with other diagnostic tools, could improve diagnostic accuracy.
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Antígenos de Neoplasias , Biomarcadores Tumorais , Carcinoma Pulmonar de Células não Pequenas , Queratina-19 , Neoplasias Pulmonares , Humanos , Carcinoma Pulmonar de Células não Pequenas/sangue , Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Biomarcadores Tumorais/sangue , Neoplasias Pulmonares/sangue , Neoplasias Pulmonares/diagnóstico , Diagnóstico Diferencial , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Antígenos de Neoplasias/sangue , Queratina-19/sangue , Carcinoma de Pequenas Células do Pulmão/sangue , Carcinoma de Pequenas Células do Pulmão/diagnóstico , Antígeno Carcinoembrionário/sangue , Serpinas/sangue , Fosfopiruvato Hidratase/sangue , Sensibilidade e Especificidade , AdultoRESUMO
Background: African ancestry is a known factor associated with the presentation and aggressiveness of prostate cancer (PC). Hispanic/Latino populations exhibit varying degrees of genetic admixture across Latin American countries, leading to diverse levels of African ancestry. However, it remains unclear whether genetic ancestry plays a role in the aggressiveness of PC in Hispanic/Latino patients. We explored the associations between genetic ancestry and the clinicopathological data in Hispanic/Latino PC patients from Colombia. Patients and methods: We estimated the European, Indigenous and African genetic ancestry, of 230 Colombian patients with localized/regionally advanced PC through a validated panel for genotypification of 106 Ancestry Informative Markers. We examined the associations of the genetic ancestry components with the Gleason Grade Groups (GG) and the clinicopathological characteristics. Results: No association was observed between the genetic ancestry with the biochemical recurrence or Gleason GG; however, in a two groups comparison, there were statistically significant differences between GG3 and GG4/GG5 for European ancestry, with a higher mean ancestry proportion in GG4/GG5. A lower risk of being diagnosed at an advanced age was observed for patients with high African ancestry than those with low African ancestry patients (OR: 0.96, CI: 0.92-0.99, p=0.03). Conclusion: Our findings revealed an increased risk of presentation of PC at an earlier age in patients with higher African ancestry compared to patients with lower African ancestry in our Hispanic/Latino patients.
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Introducción: Los dientes anteriores tienen una función predominante en el sistema estomatognático, esencial para la estética, la fonación y la masticación. Objetivo: Caracterizar a los adultos con guía anterior de la oclusión dentaria disfuncional según variables clínicas y epidemiológicas. Métodos: Se realizó un estudio descriptivo y transversal, desde octubre de 2021 hasta abril de 2022, en la Clínica Estomatológica Docente 3 de Octubre de Las Tunas. El universo estuvo conformado por 825 historias clínicas que contenían el diagnóstico de pacientes con bruxismo, oclusión traumática y trastornos temporomandibulares, quienes presentaban disfunción de la guía anterior de la oclusión dentaria. Mediante el muestreo no probabilístico intencional, fue seleccionada una muestra de 615 con fórmula dentaria íntegra o desdentamiento parcial de clase III de Kennedy y atención estomatológica concluida o inactivación de los procesos de caries e inflamatorios agudos. Resultados: Primaron el sexo femenino (54,8 %) y las edades de 40-49 años (33,5 %). El bruxismo prevaleció como diagnóstico clínico (41,9 %) con predominio del correspondiente al sueño (39,1 %), el secundario (51,2 %), el probable (59,7 %) y el moderado (69,4 %); entre sus clasificaciones más relevantes se destacó el sistema estomatognático disfuncional (84,4 %). Las manifestaciones clínicas dentarias predominantes fueron las facetas de desgaste (87,5 %). Conclusiones: La caracterización de los pacientes con guía anterior de la oclusión dentaria disfuncional permite establecer una panorámica actualizada de esta problemática de salud para un mejor seguimiento y tratamiento a dichos pacientes.
Introduction: Anterior teeth have a predominant function in the stomatognatic system, essential for the aesthetics, phonation and mastication. Objective: To characterize adults with anterior guide of dysfunctional dental occlusion according to clinical and epidemiological variables. Methods: A descriptive and cross-sectional study, was carried out from October, 2021 to April, 2022, in the 3 de Octubre Teaching Stomatological Clinic from Las Tunas. The universe was formed by 825 medical records that contained the diagnosis of patients with bruxism, traumatic occlusion and temporomandibular disorders who presented anterior guide of the dysfunctional dental occlusion. By means of the intentional non probabilistic sampling, a sample of 615 with entire dental formula or class III partial toothlessness of Kennedy and concluded stomatologic care or inactivation of the cavity and acute inflammatory processes was selected. Results: There was a prevalence of the female sex (54.8%) and the 40-49 age group (33.5%). Bruxism prevailed as clinical diagnosis (41.9%) with prevalence of the corresponding to sleep (39.1%), secondary (51.2%), probable (59.7%) and moderate (69.4%); among the most outstanding classifications was the dysfunctional stomatognatic system (84.4%). The predominant dental clinical manifestations were the wear facets (87.5%). Conclusions: The characterization of patients with anterior guide of the dysfunctional dental occlusion allows to establish an up-to-date panoramic of this health problem, for a better follow-up and treatment to these patients.
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Introducción: El sueño garantiza el bienestar físico y mental del individuo mediante retroalimentación directa. Los trastornos del sueño implican alteraciones respecto a calidad y cantidad de horas de sueño y obedecen a una alteración real de su función fisiológica que controla y opera durante el mismo. La Medicina del Sueño es una especialidad nueva, surgida en los últimos 50 años, cuyo campo de acción aborda la prevención, diagnóstico y tratamiento de los trastornos del sueño; los cuales hasta el momento se han identificado alrededor del centenar. Esta enfermedad se ha convertido en problema social crucial y creciente, difícil de abordar en la práctica médica contemporánea; debido a la complejidad en la toma de decisiones respecto a su diagnóstico y tratamiento. Esta temática requiere ser evaluada desde un enfoque interdisciplinario para reducir la morbimortalidad asociada a manifestaciones neurológicas, psicológicas, psiquiátricas, cardiovasculares y endocrinometabólicas. Objetivo: Establecer la propuesta de Consulta Interdisciplinaria de Medicina del Sueño en la provincia Camagüey. Métodos: Se efectuó una investigación cualitativa de tipo descriptivo para la selección de aspectos pertinentes a una consulta especializada proveedora de pacientes pediátricos con trastornos del sueño, en el período comprendido entre julio y diciembre de 2022, en el Centro de Inmunología y Productos Biológicos de la Universidad de Ciencias Médicas de Camagüey. El universo del grupo de trabajo estuvo integrado por ocho profesionales de las Ciencias Médicas. Se utilizaron métodos teóricos como la revisión documental, histórico-lógico, análisis y síntesis, inducción-deducción, métodos matemáticos-estadísticos y métodos computacionales. Resultados: Se conformó un algoritmo de trabajo para la atención médica, que desarrolló el ordenamiento de los elementos sustantivos propios de la analítica polisomnográfica en el contexto cubano. Logró unificar criterios y opiniones generales de manera consensuada por equipos interdisciplinarios. Conclusiones: Resulta definido el documento científico rector de la Consulta Interdisciplinaria de Medicina del Sueño en Camagüey.
Introduction: Sleep guarantees the physical and mental well-being of the individual through direct feedback. Sleep disorders involve alterations in the quality and quantity of hours of sleep and are due to a real alteration in the physiological function that controls and operates during sleep. Sleep Medicine is a new specialty, emerged in the last 50 years, whose field of action addresses the prevention, diagnosis and treatment of sleep disorders; of which around a hundred have been identified so far. This kind of disorders has become a crucial and growing social problem, difficult to address in contemporary medical practice; due to the complexity in decision-making regarding diagnosis and treatment. This topic requires being evaluated from an interdisciplinary approach to reduce morbidity and mortality associated with neurological, psychological, psychiatric, cardiovascular and endocrine-metabolic manifestations. Objective: To establish the proposal of Interdisciplinary Consultation of Sleep Medicine in the province Camagüey. Methods: A qualitative descriptive research was carried out to select aspects relevant to a specialized consultation providing pediatric patients with sleep disorders, in the period between July and December 2022, at the Center for Immunology and Biological Products of the University of Medical Sciences of Camagüey. The universe of the working group was made up of eight professionals from the Medical Sciences. Theoretical methods such as documentary review, historical-logical, analysis and synthesis, induction-deduction, mathematical-statistical methods and computational methods were used. Results: A work algorithm for medical care was formed, which developed the ordering of the substantive elements of polysomnographic analysis in the Cuban context. It manages to unify general criteria and opinions in a consensus by interdisciplinary teams. Conclusions: The governing scientific document of the Interdisciplinary Consultation of Sleep Medicine in Camagüey is defined.
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Triple negative breast cancer (TNBC) is highly immunogenic and high levels of tumor infiltrating lymphocytes (TILs) have been associated with a better prognosis and higher probability to achieve pathological complete response. Here, we explore the potential role of stromal TILs level and composition as a prognostic and predictive biomarker in TNBC. 195 Tumor biospecimens from patients diagnosed with TNBC were included. Stromal TILs (sTILs), positive CD4/CD8 cells were evaluated. Differences in clinic-pathological characteristics according to immune infiltration were assessed. The predictive and prognostic value of immune infiltration was analyzed by multivariate models. Higher immune infiltration was observed in patients with favorable clinical-pathological features. Survival analysis showed that longer overall survival times were observed in patients with a higher infiltration of sTILs (p = 0.00043), CD4 + (p = 0.0074) and CD8 + (p = 0.008). In the multivariate analysis, low levels of sTILs were found to be associated with a higher mortality hazard (HR: 1.59, 95% CI 1.01-2.48). CD4 and CD8 immune infiltration were associated with higher odds for pathological complete response (OR: 1.20, 95% CI 1.00-1.46, OR: 1.28, 1.02-1.65, respectively). Our results suggest that immune infiltration could be used as a prognostic marker for overall survival in TNBC patients.
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Neoplasias de Mama Triplo Negativas , Humanos , Neoplasias de Mama Triplo Negativas/patologia , Linfócitos do Interstício Tumoral , Colômbia , Prognóstico , Biomarcadores , Biomarcadores Tumorais/análiseRESUMO
The antioxidant effect of caffeine, associated with its ability to upregulate the nuclear factor-E2-related factor-2 (Nrf2)-signaling pathway, was explored as a possible mechanism for the attenuation of liver damage. Nonalcoholic steatohepatitis (NASH) was induced in rats by the administration of a high-fat, high-sucrose, high-cholesterol diet (HFSCD) for 15 weeks. Liver damage was induced in rats by intraperitoneal administration of thioacetamide (TAA) for six weeks. Caffeine was administered orally at a daily dose of 50 mg/kg body weight during the period of NASH induction to evaluate its ability to prevent disease development. Meanwhile, rats received TAA for three weeks, after which 50 mg/kg caffeine was administered daily for three weeks with TAA to evaluate its capacity to interfere with the progression of hepatic injury. HFSCD administration induced hepatic steatosis, decreased Nrf2 levels, increased oxidative stress, induced the activation of nuclear factor-κB (NF-κB), and elevated proinflammatory cytokine levels, leading to hepatic damage. TAA administration produced similar effects, excluding steatosis. Caffeine increased Nrf2 levels; attenuated oxidative stress markers, including malondialdehyde and 4-hydroxynonenal; restored normal, reduced glutathione levels; and reduced NF-κB activation, inflammatory cytokine levels, and damage. Our findings suggest that caffeine may be useful in the treatment of human liver diseases.