Publications by authors named "Albert Theophane Yonli"

HIV-2 infection although less virulent compared to HIV-1 is endemic in many parts of West Africa. In Burkina Faso, few data exist on HIV-2 genotypic resistance. The objective of this study was to assess HIV-2 genotypic resistance and viral load in adult patients infected with HIV-2 in Burkina Faso.

View Article and Find Full Text PDF

Noroviruses are the second leading cause of death in children under the age of 5 years old. They are responsible for 200 million cases of diarrhoea and 50,000 deaths in children through the word, mainly in low-income countries. The objective of this review was to assess how the prevalence and genetic diversity of noroviruses have been affected by the introduction of rotavirus vaccines in Africa.

View Article and Find Full Text PDF

Occult hepatitis B infection (OBI) is a public health problem in Burkina Faso. OBI represents a risk factor for the development of cirrhosis and hepatocellular carcinoma (HCC). OBI could be due to mutant viruses undetectable by HBsAg assays or a strong suppression of viral replication and gene expression under the pression of the host immune system.

View Article and Find Full Text PDF

Background: The clinical manifestations of coronavirus disease (COVID-19) can vary widely, ranging from asymptomatic to severe, and may be influenced by the host genetic background. The aim of the present study was to determine the frequencies of HLA-DRB1*11 and HLA-DRB1*12 allele polymorphisms and their associations with COVID-19.

Methods: In this cross-sectional study, 198 subjects were enrolled, including 150 COVID-19 positive cases and 48 subjects who tested negative for COVID-19.

View Article and Find Full Text PDF

Background: Hepatitis B Virus (HBV) infection affect all social strata of humanity and in the absence of any management, this infection has a different outcome from one infected person to another. This suggests that there are specific individual factors that influence the outcome of the pathology. Sex, immunogenetics and age of contraction of the virus have been cited as factors that influence the evolution of the pathology.

View Article and Find Full Text PDF

Background: The aim of this study was to evaluate the performance of ten (10) SARS-CoV-2 serological rapid diagnostic tests in comparison with the WANTAI SARS-CoV-2 Ab ELISA test in a laboratory setting.

Materials And Methods: Ten (10) SARS-CoV-2 serological rapid diagnostic tests (RDTs) for SARS-CoV-2 IgG/IgM were evaluated with two (2) groups of plasma tested positive for one and negative for the other with the WANTAI SARS-CoV-2 Ab ELISA. The diagnostic performance of the SARS-CoV-2 serological RDTs and their agreement with the reference test were calculated with their 95% confidence intervals.

View Article and Find Full Text PDF

Introduction: Genital human papillomavirus (HPV) infection is widespread among sexually active individuals. Several factors may contribute to increased risk of infection in pregnant women. The objective of this study was to determine the high-risk (HR-HPV) and low-risk (LR-HPV) oncogenic HPV genotypes among pregnant women in Ouagadougou.

View Article and Find Full Text PDF

Background: Genetic factors are one of the significant contributors to prostate cancer (PCa) development, and hereditary prostate cancer 2 (HPC2) locus gene ELAC2 is considered a PCa susceptibility region. The HPC2/ELAC2 gene has been identified by linkage analysis in familial prostate cancer patients in the United States but has never been studied in Burkina Faso. The objective of the present study was to analyze the carriage of the C650T (Ser217Leu) and G1621A (Ala541Thr) mutations of the ELAC2 gene and the risk factors in prostate cancer patients in Burkina Faso.

View Article and Find Full Text PDF

Background: Genetic alterations can result in DNA repair defects, increasing susceptibility to breast cancer. The aim of this study was to evaluate the involvement of two DNA repair genes, ERCC1 (rs3212986, GenBank NC_000073.9) and ERCC2 (rs1799793, rs13181, GenBank: NC_000019.

View Article and Find Full Text PDF

Background And Objectives: Dengue fever (DF), an emerging and re-emerging viral disease, is a major public health problem. The aim of this study was to investigate the influence of genes polymorphism and genotypes in susceptibility to dengue virus infection and disease severity in a population from Burkina Faso through a case-control study.

Methods: genes determination was performed using PCR-SSP in 50 patients infected by dengue virus (DENV) and 54 Healthy controls (HC) subjects who had never been infected.

View Article and Find Full Text PDF
Article Synopsis
  • Vulvovaginal candidiasis is a significant health issue for women caused by Candida species, with a rising resistance to azole antifungals, particularly linked to mutations in the ERG11 gene.
  • A study conducted at Saint Camille Hospital in Burkina Faso found that out of 262 clinical strains, most were C. albicans, with a fluconazole resistance rate of 59.54%.
  • The detection of mutated ERG11 in 9.79% of resistant C. albicans strains marks the first report in Burkina Faso and suggests a potential cause for ongoing azole resistance in vulvovaginal infections.
View Article and Find Full Text PDF

Breast cancer is the leading cause of death among women in both developed and developing countries. It is multifactorial, including genetic predispositions such as oncogenic mutations on and 2 genes. The objectives of the present study were to identify oncogenic mutations in exon 11 of the gene and to determine the risk factors for breast cancer among women population in Burkina Faso.

View Article and Find Full Text PDF

Background: Prostate cancer (Pca) is a public health problem that affects men, usually of middle age or older. It is the second most common cancer diagnosed in men and the fifth leading cause of death. The RNASEL gene located in 1q25 and identified as a susceptibility gene to hereditary prostate cancer, has never been studied in relation to prostate cancer in Burkina Faso.

View Article and Find Full Text PDF

Several factors contribute to the development of breast cancer, including the immune system. This study is aimed to characterize the carriage of human leukocyte antigen (HLA)-DRB1*11 and 1*12 alleles in patients with breast cancer. This case-control study consisted of 96 histologically diagnosed breast cancer cases and 102 controls (cases without breast abnormalities).

View Article and Find Full Text PDF

Background: In resource-limited countries, ABO, HLA, MNS, Kells, and hemoglobin electrophoresis are classic tests for the resolution of paternity disputes due to their affordable cost. The limitations of these tests in cases of disputed paternity require the use of Short Tandem Repeats (STR) for their certification. This study aimed to determine the biological fathers of children using ABO-rhesus/hemoglobin electrophoresis and STR assays in Burkina Faso, West Africa.

View Article and Find Full Text PDF

Objective: Glutathione S-transferases have been associated with experimental resistance to some drugs. The present study investigated the factors associated with blood pressure control in patients with essential hypertension, especially the role of GSTT1 and GSTM1 genes polymorphisms. This cross-sectional study in Burkina Faso consisted of 200 patients with essential hypertension and under treatment.

View Article and Find Full Text PDF

Viral and bacterial infections represent an occupational risk for female sex workers. This study aimed at determining HPV coinfection with genital pathogens among female sex workers in West and Central Africa and identifying antibiotic resistance genes. A total of 182 samples from female sex workers were analyzed by real-time PCR and classic PCR.

View Article and Find Full Text PDF

Hepatitis B virus (HBV) genotype E (HBV-E) accounts for the majority of chronic hepatitis B (CHB) infections in West Africa. We aimed to determine factors associated with HBV-E-induced hepatocellular carcinoma (HCC) in West Africa. Data on patients from Burkina Faso who were hepatitis B surface antigen positive (HBsAg+) and had CHB were analyzed.

View Article and Find Full Text PDF
Article Synopsis
  • Recent studies have linked certain gene variants (specifically in the exostosin-2 gene) to type 2 diabetes (T2D) risk, but findings vary by population.
  • A case-control study in Ouagadougou, Burkina Faso, examined three specific gene variants to see if they were associated with T2D among 121 patients and 134 controls.
  • The results showed no significant association between the gene variants and T2D risk, though links were found between T2D, body mass index (BMI), and age in the study participants.
View Article and Find Full Text PDF

Background: Glutathione S-transferases play a key role in the detoxification of persistent oxidative stress products which are one of several risks factors that may be associated with many types of disease processes such as cancer, diabetes, and hypertension. In the present study, we characterize the null genotypes of GSTM1 and GSTT1 in order to investigate the association between them and the risk of developing essential hypertension.

Methods: We conducted a case-control study in Burkina Faso, including 245 subjects with essential hypertension as case and 269 control subjects with normal blood pressure.

View Article and Find Full Text PDF

Objectives A cluster of specialized KIR genes of specialized KIR genes has been shown to be associated with susceptibility or resistance to viral infections in humans. Therefore, this pilot study, this pilot investigation sought to determine the frequencies of KIR genes human immunodeficiency virus type 1( HIV-1) patients and establish their potential clinical involvement in disease progression and staging. Methods HIV-1 infected and healthy individuals were selected for this study.

View Article and Find Full Text PDF

Background and objective Breast cancer remains the most common cause of cancer mortality in women. The aim of this study was to investigate associations between genetic variability in GSTM1 and GSTT1 and susceptibility to breast cancer. Methods Genomic DNA was extracted from blood samples for 80 cases of histologically diagnosed breast cancer and 100 control subjects.

View Article and Find Full Text PDF

Background: Genetic and environment play a significant role in the etiology of essential hypertension (EH). Recently STK39 rs3754777, ATP2B1 rs2681472 and rs17249754 have been associated with BP variation and hypertension. In this study we aimed to determine firstly whether index variants were associated with the risk of developing EH in Burkina Faso and secondly to characterize cardiovascular risk markers.

View Article and Find Full Text PDF

APOBEC3G is a potent inhibitor of HIV-1 replication, and act by deaminating cytidines in uracil on the negative strand of the viral cDNA. In this case-control study, expression in subjects' naïve to HAART infected by HIV-1 and the effect of APOBEC3G polymorphism on its expression were evaluated. The results show that the HIV-1 infected carriers of the G minor alleles of the variant rs8177832 had a higher expression of mRNA than the controls carriers of the G minor allele.

View Article and Find Full Text PDF