Aims: The objective of our study was to evaluate the lipid profile and the plasma atherogenicity index obtained from the log (TG / HDL-c) in diabetics patients. Study Design: This is a comparative and analytical study. Place and Duration of Study: Sample: MARC SANKALE Centre at the Abass Ndao Hospital in Dakar (Senegal), CHNU/Fann Biochemistry Laboratory, from June 2018 to November 2019. Controls: For each patient, a witness of the same sex and the same age ± 2 years was recruited. Methodology: The lipid balance parameters were assayed using enzymatic techniques with the Cobas c311 system (Roche Diagnostics, Switzerland). Plasma atherogenicity indices for each patient were calculated (CT / HDL-c, LDL / HDL-c and Log (TG / HDL-c)). Data analysis was performed using XLSTAT software and a p value <0.05 was considered to be a statistically significant difference. Results: Our study concerned 100 subjects with type 2 diabetes. The average age was 50.5 ± 10.80 years old and the sex ratio was 0.58. Evaluation of lipid parameters had shown an increase in diabetic subjects compared to controls for total cholesterol (2.30 g / l) and LDL-cholesterol (1.40 g / l) with significant differences (p < 0.001). We also found that 11% of patients had a CT / HDL-c ratio > 4.5, while 8% had an LDL-c / HDL-c ratio > 3.5 and 26% of patients had a log (Tg / HDL- c) > 0.21. Conclusion: Lipid disturbances constitute significant abnormalities in type 2 diabetic subjects and would predispose them to cardiovascular complications. However, IAP = log (TG / HDL-c) could be considered the most sensitive predictor of cardiovascular risk.
Introduction Genomic mutations in TP53 gene in association with etiological risk factors have been associated with oral carcinogenesis. Herein, we screened for genomic variants of TP53 predisposing to oral cancers in Senegalese patients. Methodology 88 patients with confirmed diagnostic were recruited after informed consent. Blood samples were collected from each patient to perform DNA extraction, PCR amplification of all coding exons of TP53 followed by Sanger Sequencing of PCR products. Nucleotide sequences were analysed with Genalys software. 94 blood donors with no cancer diagnosis were also recruited as controls for association study between the most common variants identified in patients and predisposition to oral cancers. Results Sequence analysis showed that 52.27% of patients carry at least one mutation in TP53. Eleven genomic variants were identified, 7 variants already reported in databases and 4 new variants. The most recurrent variants in this study already reported as cancer-related variants were Pro72Arg (rs1042522; Arginine frequency estimated at 31.26%) and a 16 bp insertion in intron 3 (rs59758982; allelic frequency estimated at 26.25%). Haplotype analysis between these variants showed a strong linkage disequilibrium (D’ = 0.999, r2 = 0.153 and p-value < 0.05). However, association study did not find any significant association with susceptibility to oral cancer (p-value > 0.05). Conclusion Our study highlighted that despite the absence of association between the two most common cancer-related variants in Senegalese patients diagnosed with oral cancer, their strong LD suggested that they could be transmitted together in a common haplotype which may be implicated in oral carcinogenesis.
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