The extensively drug-resistant (XDR) strains of Acinetobacter baumannii have become a major cause of nosocomial infections, increasing morbidity and mortality worldwide. Many different treatments, including phage therapy, are attractive ways to overcome the challenges of antibiotic resistance. This study investigates the biofilm formation ability of 30 XDR A. baumannii isolates and the efficacy of a cocktail of four tempetate bacteriophages (SA1, Eve, Ftm, and Gln) and different antibiotics (ampicillin/sulbactam, meropenem, and colistin) in inhibiting and degrading the biofilms of these strains. The majority (83.3%) of the strains exhibited strong biofilm formation. The bacteriophage cocktail showed varying degrees of effectiveness against A. baumannii biofilms, with higher concentrations generally leading to more significant inhibition and degradation rates. The antibiotics-bacteriophage cocktail combinations also enhanced the inhibition and degradation of biofilms. The findings suggested that the bacteriophage cocktail is an effective tool in combating A. baumannii biofilms, with its efficacy depending on the concentration. Combining antibiotics with the bacteriophage cocktail improved the inhibition and removal of biofilms, indicating a promising strategy for managing A. baumannii infections. These results contribute to our understanding of biofilm dynamics and the potential of bacteriophage cocktails as a novel therapeutic approach to combat antibiotic-resistant bacteria.
Background: Depression and anxiety are two psychosocial illnesses that mostly are comorbid. The prevalence of these diseases is increasing worldwide. Both can affect general health also oral and dental health. The effects can be physiological and behavioral. Patients with these disorders are not willing to keep oral hygiene. The purpose of this study was to investigate the association between depression/anxiety and oral health indices in the 15–75-year-old population of Kerman. Materials and Methods: This cross-sectional study recruited 5900 people aged 15–75 years through one-stage cluster sampling (Kerman coronary artery disease risk factors study, KERCADRS). Data were collected through beck questionnaires for anxiety and depression and clinical examinations. Oral health indices including decayed, missing, filled teeth, gingival index (GI), and community periodontal index (CPI) were also measured. Data were analyzed by SPSS 21 software. Chi-square, t-test and regression analysis were used to determine the relationship between the variables. P ≤0.05 was considered as the level of statistical significance. Results: In the study, 1975 (33.6%) of patients showed moderate-to-severe anxiety and 3502 (59.5%) got the scores as depressed. There was a significant difference between GI and CPI indices of the normal and depressed group (P < 0.01), but the difference in the anxious and normal group was not statistically significant (P > 0.05). Conclusion: The results of the study showed a significant relationship between depression and oral health indices but not with anxiety. Therefore, the present study suggests that more attention should be paid to the oral health of people with a history of depression.
Three-component reaction of 3-hydroxy-4H-chromen-4-one, aromatic aldehydes and malononitrile or ethyl cyanoacetate in EtOH, at reflux and in the presence of catalytic amounts of nanosized MgO has been used for the synthesis of dihydropyrano[3,2-b]chromene derivatives. A number of advantages are associated with this method such as, easy monitoring of reaction progress, convenient workup procedure and high yields. The antiproliferative effects of these compounds were tested by MTT assay on six cell lines; five cancerous (Caco-2, A549, MCF-7, HT1080, and U87) and one normal (3T3). The results revealed that some of these compounds had cytotoxicity against tested cell lines especially against Caco-2 (colorectal) cell line.