RESUMO
BACKGROUND: The prevalence of oral human papillomavirus (HPV) in the healthy population and patients with oral diseases such as oral squamous cell carcinoma (OSCC), oral potentially malignant disorders (OPMDs), and oral benign lesions (BL), is not consistently described in the literature, with scarce and often heterogeneous data. In addition, the efficacy of HPV prophylactic vaccines in preventing HPV-related oral disorders has been scarcely investigated. METHODS: The prevalence of HPV and the potential impact of vaccines were analyzed in 1,415 oral rinse specimens, collected over 10 years and grouped into four categories based on histological/clinical diagnosis. RESULTS: HPV prevalence in OSCC, OPMD, and BL patients and in healthy individuals potentially exposed to HPV (HPE) was comparable (12.7 vs. 27.2% vs. 13.5 vs. 9%). Statistical analysis of the vaccine impact involved calculating high and low estimates and showed a significant difference only for the low effect. The nonavalent vaccine had higher low estimates than the bivalent vaccine in OSCC and HPE patients (29.6 vs. 51.9%, p < 0.05; 18.2 vs. 42.4%, p < 0.05), while for OPMD and BL, the frequency of bivalent low estimates was lower than that of quadrivalent and nonavalent (48.6 vs. 68.6%, p < 0.05 and 48.6 vs. 77.1%, p < 0.05; 23.9 vs. 50.7%, p < 0.05, and 23.9 vs. 63.4%, p < 0.05). CONCLUSIONS: This study provided new insights into the prevalence of oral HPV and showed that the nonavalent vaccine may provide better protection than the other vaccines in the presence of an OSCC diagnosis. Conversely, the quadrivalent vaccine may be sufficient to prevent OPMD and BL.
RESUMO
In this study, we investigate the role of microwave cooking in reducing mycotoxin contamination in plant-based food matrices, with a focus on veggie burgers (purchased and home-made) and their ingredients (soybean, potatoes, zucchini, carrots). Two different conditions were studied (Max-Min) that were 800 W for 60 s and 800 W for 90 s, respectively. The degradation patterns of aflatoxins (AFB1, AFB2, AFG1, AFG2), fumonisins (FB1, FB2, FB3), trichothecenes (T2, HT2, ZEA), and ochratoxin A (OTA) were studied. The extraction procedures were conducted with the QuEChERS extraction, and the analyses were conducted with liquid chromatography-tandem mass spectrometry (LC-MS/MS). Principal component analysis (PCA) showed that degradation under microwave cooking varies considerably across different food matrices and cooking conditions. This study provides valuable insights into the degradation of mycotoxins during microwave cooking and underscores the need for more research in this area to ensure food safety.
RESUMO
Antimicrobial resistance is a widespread global health problem. The presence of resistant bacteria and antibiotic resistance genes has been demonstrated not only in humans but also in animals, including pets. Stray cats share the urban environment with people and pets. This may facilitate transmission of resistant bacteria and resistance genes between stray animals, people and domestic animals. Several studies have investigated the role of stray cats as a fecal carrier of ESBL-producing bacteria. However, there are many genes and resistance mechanisms that can be detected in commensal E. coli, which, because of its genetic plasticity, is considered an indicator for monitoring antibiotic resistance. In this study, rectal swabs were collected from stray cats from colonies and shelters in the city of Monza (Monza Brianza, Italy) to isolate commensal E. coli. Phenotypic tests, such as the minimum inhibitory concentration (MIC) and the double disc test (DDST), and molecular analyses to detect antimicrobial resistance genes (ARGs) were used to study the resistance of these isolates. The results obtained confirm that stray cats can carry ESBL-producing E. coli (6.7%) and genes conferring resistance to other important antibiotic classes such as tetracyclines and sulfonamides.