Showing papers by "A.M. Idris published in 2017"
TL;DR: Functional prediction showed that genes involved in bacterial mobility, flagellar assembly, bacterial chemotaxis and LPS synthesis were enriched in the tumors while those responsible for DNA repair and combination, purine metabolism, phenylalanine, tyrosine and tryptophan biosynthesis, ribosome biogenesis and glycolysis/gluconeogenesis were significantly associated with the controls.
Abstract: Studies on the possible association between bacteria and oral squamous cell carcinoma (OSCC) remain inconclusive, largely due to methodological variations/limitations. The objective of this study was to characterize the species composition as well as functional potential of the bacteriome associated with OSCC. DNA obtained from 20 fresh OSCC biopsies (cases) and 20 deep-epithelium swabs (matched control subjects) was sequenced for the V1-V3 region using Illumina’s 2 × 300 bp chemistry. High quality, non-chimeric merged reads were classified to species level using a prioritized BLASTN-algorithm. Downstream analyses were performed using QIIME, PICRUSt, and LEfSe. Fusobacterium nucleatum subsp. polymorphum was the most significantly overrepresented species in the tumors followed by Pseudomonas aeruginosa and Campylobacter sp. Oral taxon 44, while Streptococcus mitis, Rothia mucilaginosa and Haemophilus parainfluenzae were the most significantly abundant in the controls. Functional prediction showed that genes involved in bacterial mobility, flagellar assembly, bacterial chemotaxis and LPS synthesis were enriched in the tumors while those responsible for DNA repair and combination, purine metabolism, phenylalanine, tyrosine and tryptophan biosynthesis, ribosome biogenesis and glycolysis/gluconeogenesis were significantly associated with the controls. This is the first epidemiological evidence for association of F. nucleatum and P. aeruginosa with OSCC. Functionally, an “inflammatory bacteriome” is enriched in OSSC.
158 citations
TL;DR: The number of non-malignant OMLs was much lower than expected in comparison to oral malignancies, and can likely be explained by the fact that the biopsies were taken only when malignancy was suspected.
Abstract: Objectives: To report the prevalence and types of biopsied oral and maxillofacial lesions (OMLs) in South-Western (Jazan Province) region, , Kingdom of Saudi Arabia (KSA). Methods: This retrospective study was based on the retrieval of clinicopathological data for a period of 6 years between January 2009 and December 2014. These data were obtained between October 2014 and June 2015 from the histopathology records of King Fahad Central Hospital, Jazan, KSA, which is the only referral center for biopsy services. Results: Out of the 32149 biopsies received, 714 (2.2%) were OMLs. The age ranged from 0 (neonatal) to 100 years, with a mean age of 46.8±23.4 and a male-to-female ratio of 1:1.3. The tongue was the most common site for OMLs and for malignant neoplasms, in particular. The most common category was malignant neoplasm (38.7%), followed by inflammatory lesions (16.5%). Oral malignancies accounted for 15.8% of all malignancies. Oral squamous cell carcinoma (OSCC) (36.1%) was the most frequent type, followed by pyogenic granuloma and mucocele (7% each). Shammah-associated OSCC and epithelial dysplasia were twice as common in females. Conclusion: The number of non-malignant OMLs was much lower than expected in comparison to oral malignancies. This difference can likely be explained by the fact that the biopsies were taken only when malignancy was suspected. The higher rate of OSCC reported from this region is attributed to shammah usage. This study emphasizes the importance of biopsy services for all OMLs and the prevention of shammah use. Saudi Med J 2017; Vol. 38 (4): 405-412 doi: 10.15537/smj.2017.4.18760 How to cite this article: Saleh SM, Idris AM, Vani NV, Tubaigy FM, Alharbi FA, Sharwani AA, et al. Retrospective analysis of biopsied oral and maxillofacial lesions in South-Western Saudi Arabia. Saudi Med J. 2017 Apr;38(4):405-412. doi: 10.15537/smj.2017.4.18760.
26 citations
31 Jul 2017
TL;DR: In the Sudan, Toombak dipping is a major risk factor for oral squamous cell carcinoma, and a high attributable risk to this agent in oral carcinogenesis was demonstrated.
Abstract: Background:Toombak dipping-a form of smokeless tobacco-is highly prevalent in the Sudan.Materials and methods:For a case–control study, we selected oral cancer cases (n = 98) and controls (n = 98) ...
10 citations
TL;DR: The low prevalence of benign orofacial tumors found in this study indicates a lack of awareness of the importance of taking biopsy for such lesions, and emphasizes the need for biopsy investigation for all oral lesions to ascertain appropriate diagnosis.
Abstract: Aim
The aim of the present study was to analyze the prevalence of benign tumors of the orofacial region at a tertiary referral center in the south-western region of Saudi Arabia.
Methods
Cases from 2009 to 2014 were retrieved from October 2014 to June 2015 from the archives of the histopathology department of the center. Demographic and clinical details of the patients were recorded.
Results
Of the 714 oral and maxillofacial biopsy specimens, 78 (10.9%) were benign tumors. The mean age and range were 34.6±19.8 and 3-85 year, respectively. Sex distribution was equal. Most tumors were mesenchymal (34.6%), followed by epithelial (26.9%), odontogenic (20.5%), and salivary gland tumors (17.9%). Squamous cell papilloma (20.5%) was the most common, followed by pleomorphic adenoma (15.4%) and fibrous tumors (15.4%).
Conclusions
The low prevalence of benign orofacial tumors found in this study indicates a lack of awareness of the importance of taking biopsy for such lesions. The information reported here emphasizes the need for biopsy investigation for all oral lesions to ascertain appropriate diagnosis.
3 citations