Background: Although evidence indicates that tobacco use is one of the risk factors for oral cancer, the relationship between opium addiction and oral cancer has not yet been evaluated. The present study was performed aiming to evaluate P53 and epidermal growth factor receptor (EGFR) expression in the gingival tissue of opium-dependent patients.Methods: 102 individuals (70 men and 32 women) wer...

conclusions this study provides initial data on the prevalence and distribution of the flaa, cadf, ciab, cdtb, cgtb, docc and wlan genes in c. jejuni. background campylobacter jejuni (c. jejuni) is a major cause of human diarrheal disease. objectives this study was conducted to determine the prevalence of different pathogenic genes in isolates recovered from human stool samples in rosario, arge...

background and objectives: enteropathogenic escherichia coli (epec) divided into two groups typical and atypical (aspect). the main virulence genes are located in a pathogenicity island called lee ( locus of enterocyte effacement ). lee frequently inserted in trna genes of selc , pheu and phev in the bacterial chromosome. tepec and aepec strains have some differences in their pathogenicity. the...

although more than 98% of the human genome is transcribed, most of these transcripts are not translated into proteins. rather, they are considered as non-coding rnas. micrornas (mirnas) are very short non-coding rnas approximately 22 nucleotides in length which regulate many key processes of cells such as growth, proliferation, differentiation, cell cycle, apoptosis (programmed cell death) and ...

Pursuing the approach of Gentili and Vezzoni [Math. Res. Not. IMRN 12 (2022), pp. 9499–9528] we study quaternionic Monge-Ampère equation on HKT (hyperkähler with torsion) manifolds admitting an foliation having corank 4 <mml:annotation encoding="appl...

We analyse the geometry of four-dimensional bosonic manifolds arising within the context of N = 4,D = 1 supersymmetry. We demonstrate that both cases of general hyper-Kähler manifolds, i.e. those with translation or rotational isometries, may be supersymmetrized in the same way. We start from a generic N=4 supersymmetric three-dimensional action and perform dualization of the coupling constant,...

background: in this study, we investigated the prevalence of staphylococcus aureus agr groups to detect the predominant type according to the source of isolation and assessed the possible relationship between agr groups, types of infection and susceptible or resistance to methicillin. materials and methods: dna of 194 s. aureus isolates were extracted by lysozyme-phenol chloroform method that i...