Association of Salivary Human Papillomavirus Infection and Oral and Oropharyngeal Cancer: A Meta-Analysis

BACKGROUND: Human papillomavirus (HPV) infection has been recognized as an important risk factor in cancer. The purpose of this systematic review and meta-analysis was to determine the prevalence and effect size of association between salivary HPV DNA and the risk of developing oral and oropharyngeal cancer. METHODS: A systematic literature search of PubMed, EMBASE, Web of Science, LILACS, Scopus and the Cochrane Library was performed, without language restrictions or specified start date. Pooled data were analyzed by calculating odds ratios (ORs) and 95% confidence intervals (CIs). Quality assessment was performed using the Newcastle-Ottawa Scale (NOS). RESULTS: A total of 1672 studies were screened and 14 met inclusion criteria for the meta-analysis. The overall prevalence of salivary HPV DNA for oral and oropharyngeal carcinoma was 43.2%, and the prevalence of salivary HPV16 genotype was 27.5%. Pooled results showed a significant association between salivary HPV and oral and oropharyngeal cancer (OR = 4.94; 2.82-8.67), oral cancer (OR = 2.58; 1.67-3.99) and oropharyngeal cancer (OR = 17.71; 6.42-48.84). Significant associations were also found between salivary HPV16 and oral and oropharyngeal cancer (OR = 10.07; 3.65-27.82), oral cancer (OR = 2.95; 1.23-7.08) and oropharyngeal cancer (OR = 38.50; 22.43-66.07). CONCLUSIONS: Our meta-analysis demonstrated the association between salivary HPV infection and the incidence of oral and oropharyngeal cancer indicating its value as a predictive indicator

Age-related changes in the local milieu of inflamed tissues cause aberrant neutrophil trafficking and subsequent remote organ damage

Aging is associated with dysregulated immune functions. Here, we investigated the impact of age on neutrophil diapedesis. Using confocal intravital microscopy, we found that in inflamed aged tissues neutrophils exhibited a high frequency of reverse transendothelial migration (rTEM). This retrograde breaching of the endothelium by neutrophils was governed by enhanced production of the chemokine CXCL1 from mast cells that localized at endothelial cell (EC) junctions. Increased EC expression of the atypical chemokine receptor 1 (ACKR1) supported this pro-inflammatory milieu in aged venules. Accumulation of CXCL1 caused desensitization of the chemokine receptor CXCR2 on neutrophils and loss of neutrophil directional motility within EC junctions. Fluorescent tracking revealed that in aged mice, neutrophils undergoing rTEM re-entered the circulation and disseminated to the lungs where they caused vascular leakage. Thus, neutrophils stemming from a local inflammatory site contribute to remote organ damage, with implication to the dysregulated systemic inflammation associated with aging

Estrategias de guía e ingredientes dietéticos de precisión para enfermedades crónicas en población pre-sénior y sénior

El envejecimiento de la población supone un importante reto, económico y cualitativo, para el sistema de salud orientándolo hacia una atención de tipo preventivo, en la que la nutrición de precisión (NP) y la prescripción de hábitos saludables adquieren relevancia capital. El fin de la NP es procurar una nutrición adaptada a cada individuo, entendiendo que la prevención o el tratamiento de trastornos crónicos (obesidad, diabetes, enfermedad cardiovascular, etc.) deben abordarse de un modo integral, considerando información personal y clínica relevante, edad y características feno- y genotípicas. La elaboración de la presente guía surge de la necesidad de desarrollar modelos nutricionales de precisión que permitan la individualización del tratamiento nutricional, con énfasis en el adulto mayor. Las necesidades nutricionales, las recomendaciones dietéticas y los ingredientes para una NP en las personas pre-sénior y sénior quedan resumidas en realizar al menos 3 comidas diarias, reducir las calorías totales, optar por una alimentación variada y equilibrada con alimentos frescos y de alta densidad nutricional, incorporar verduras, legumbres y pescado, consumir productos lácteos y fibra, preferir carnes blancas en lugar de rojas, evitar frituras, embutidos y alimentos procesados, moderar el consumo de sal, café y alcohol, e hidratarse adecuadamente.The aging of the population underlines an important challenge for the health system not only from sanitary and economic reasons but also by quality perspectives concerning preventive care, where precision nutrition (PN) and the prescription or advice on healthy habits becomes relevant. PN focuses on provide nutrition adapted to each individual, understanding that the prevention or treatment of chronic disorders (obesity, diabetes, cardiovascular disease, etc.) must be addressed in a comprehensive way, considering not only relevant personal and clinical information, but also healthy aging and phenotypical and genotypical features. This guide was prepared due to the need to develop precision nutritional models that allow individualized nutritional treatment for each subject and physiopathological particularities with emphasis on the elderly. Therefore, the requirements of the Spanish pre-senior and senior populations, dietary recommendations and precision foods are reviewed in this document: have at least three daily meals, reduce total calories, choose a varied and balanced diet with fresh foods and high nutritional density, add vegetables, legumes and fish, consume dairy products and fiber, prefer white meat instead of red, avoid fried foods, sausages and processed foods, moderate the consumption of salt, coffee and alcohol, and get hydrated

Autophagy modulates endothelial junctions to restrain neutrophil diapedesis during inflammation

The migration of neutrophils from the blood circulation to sites of infection or injury is a key immune response and requires the breaching of endothelial cells (ECs) that line the inner aspect of blood vessels. Unregulated neutrophil transendothelial cell migration (TEM) is pathogenic, but the molecular basis of its physiological termination remains unknown. Here, we demonstrated that ECs of venules in inflamed tissues exhibited a robust autophagic response that was aligned temporally with the peak of neutrophil trafficking and was strictly localized to EC contacts. Genetic ablation of EC autophagy led to excessive neutrophil TEM and uncontrolled leukocyte migration in murine inflammatory models, while pharmacological induction of autophagy suppressed neutrophil infiltration into tissues. Mechanistically, autophagy regulated the remodeling of EC junctions and expression of key EC adhesion molecules, facilitating their intracellular trafficking and degradation. Collectively, we have identified autophagy as a modulator of EC leukocyte trafficking machinery aimed at terminating physiological inflammation

The ellagic acid derivative 4,4'-Di-O-methylellagic acid as a promising molecule in colorectal cancer therapy

Ellagic acid (EA) and some derivatives have been reported to inhibit cancer cell proliferation, induce cell cycle arrest and modulate some important cellular processes related to cancer. The aim of this study was to identify possible structure-activity relationships of EA and some in vivo derivatives in their antiproliferative effect on both human colon cancer and normal cells, and to compare this activity with that of other polyphenols. Our results showed that 4,4'-Di-O-methylellagic acid (4,4'-DiOMEA) was the most effective compound in the inhibition of colon cancer cell proliferation, reaching 13-fold more effect than other compounds of the same family, being also very active against colon cancer cells resistant to the chemotherapeutic agent 5-Fluoracil whereas no effect was observed in non-malignant colon cells. Moreover, no correlation between antiproliferative and antioxidant activities was found further supporting that structure differences might result in dissimiliar molecular targets involved in their differential effects. Finally, microarray analysis revealed that 4,4'-DiOMEA modulated Wnt signaling, which might be involved in the potential antitumor action of this compound. Our results suggest that structural-activity differences between EA and 4,4'-DiOMEA might constitute the basis for a new strategy in anticancer drug discovery based on these chemical modifications

Estrategias de guía e ingredientes dietéticos de precisión para enfermedades crónicas en población pre-sénior y sénior

El envejecimiento de la población supone un importante reto, económico y cualitativo, para el sistema de salud orientándolo hacia una atención de tipo preventivo, en la que la nutrición de precisión (NP) y la prescripción de hábitos saludables adquieren relevancia capital. El fin de la NP es procurar una nutrición adaptada a cada individuo, entendiendo que la prevención o el tratamiento de trastornos crónicos (obesidad, diabetes, enfermedad cardiovascular, etc.) deben abordarse de un modo integral, considerando información personal y clínica relevante, edad y características feno- y genotípicas. La elaboración de la presente guía surge de la necesidad de desarrollar modelos nutricionales de precisión que permitan la individualización del tratamiento nutricional, con énfasis en el adulto mayor. Las necesidades nutricionales, las recomendaciones dietéticas y los ingredientes para una NP en las personas pre-sénior y sénior quedan resumidas en realizar al menos 3 comidas diarias, reducir las calorías totales, optar por una alimentación variada y equilibrada con alimentos frescos y de alta densidad nutricional, incorporar verduras, legumbres y pescado, consumir productos lácteos y fibra, preferir carnes blancas en lugar de rojas, evitar frituras, embutidos y alimentos procesados, moderar el consumo de sal, café y alcohol, e hidratarse adecuadamente.The aging of the population underlines an important challenge for the health system not only from sanitary and economic reasons but also by quality perspectives concerning preventive care, where precision nutrition (PN) and the prescription or advice on healthy habits becomes relevant. PN focuses on provide nutrition adapted to each individual, understanding that the prevention or treatment of chronic disorders (obesity, diabetes, cardiovascular disease, etc.) must be addressed in a comprehensive way, considering not only relevant personal and clinical information, but also healthy aging and phenotypical and genotypical features. This guide was prepared due to the need to develop precision nutritional models that allow individualized nutritional treatment for each subject and physiopathological particularities with emphasis on the elderly. Therefore, the requirements of the Spanish pre-senior and senior populations, dietary recommendations and precision foods are reviewed in this document: have at least three daily meals, reduce total calories, choose a varied and balanced diet with fresh foods and high nutritional density, add vegetables, legumes and fish, consume dairy products and fiber, prefer white meat instead of red, avoid fried foods, sausages and processed foods, moderate the consumption of salt, coffee and alcohol, and get hydrated