Publications by authors named "Papa-Makhtar Drame"

Patients with chronic inflammation are burdened with anemia of inflammation (AI), where inflammatory cytokines inhibit erythropoiesis, impede erythropoietin production, and limit iron availability by inducing the iron regulator hepcidin. High hepcidin hinders iron absorption and recycling, thereby worsening the impaired erythropoiesis by restricting iron availability. AI management is important as anemia impacts quality of life and potentially affects morbidity and mortality.

View Article and Find Full Text PDF

Mass drug administration programs targeting filarial infections depend on diagnostic tools that are sensitive and specific. The coendemicity of Loa loa with other filarial species often hampers the control programs. LL2634 was identified as the most promising target among several highly repeated targets, with sensitivity between 500 ag and 1 fg of genomic DNA.

View Article and Find Full Text PDF

Background: In a context of large-scale implementation of malaria vector control tools, such as the distribution of long-lasting insecticide nets (LLIN), it is necessary to regularly assess whether strategies are progressing as expected and then evaluate their effectiveness. The present study used the case-control approach to evaluate the effectiveness of LLIN 42 months after national wide distribution. This study design offers an alternative to cohort study and randomized control trial as it permits to avoid many ethical issues inherent to them.

View Article and Find Full Text PDF

Vector control remains the most effective measure to prevent the transmission of mosquito-borne diseases. However, the classical entomo-parasitological methods used to evaluate the human exposure to mosquito bites and the effectiveness of control strategies are indirect, labor intensive, and lack sensitivity in low exposure/transmission areas. Therefore, they are limited in their accuracy and widespread use.

View Article and Find Full Text PDF

Aedes borne viruses represent public health problems in southern countries and threat to emerge in the developed world. Their control is currently based on vector population control. Much effort is being devoted to develop new tools to control such arbovirus.

View Article and Find Full Text PDF

Standard entomological methods for evaluating the impact of vector control lack sensitivity in low-malaria-risk areas. The detection of human IgG specific to Anopheles gSG6-P1 salivary antigen reflects a direct measure of human-vector contact. This study aimed to assess the effectiveness of a range of vector control measures (VCMs) in urban settings by using this biomarker approach.

View Article and Find Full Text PDF

Background: Over the past decade, a sharp decline of malaria burden has been observed in several countries. Consequently, the conventional entomological methods have become insufficiently sensitive and probably under-estimate micro-geographical heterogeneity of exposure and subsequent risk of malaria transmission. In this study, we investigated whether the human antibody (Ab) response to Anopheles salivary gSG6-P1 peptide, known as a biomarker of Anopheles exposure, could be a sensitive and reliable tool for discriminating human exposure to Anopheles bites in area of low and seasonal malaria transmission.

View Article and Find Full Text PDF

Background: Much effort is being devoted for developing new indicators to evaluate the human exposure to Aedes mosquito bites and the risk of arbovirus transmission. Human antibody (Ab) responses to mosquito salivary components could represent a promising tool for evaluating the human-vector contact.

Methodology/principal Findings: To develop a specific biomarker of human exposure to Aedes aegypti bites, we measured IgG Ab response to Ae.

View Article and Find Full Text PDF
Article Synopsis
  • * Significant reductions in mosquito populations, malaria infections, and immune responses were recorded, particularly where long-lasting insecticide-treated nets (LLIN) and insecticide-treated plastic sheeting (ITPS-ZF) were used together.
  • * Findings suggest that using a combination of vector control methods is more effective in reducing malaria risks than using a single method, indicating a need for broader application of this strategy.
View Article and Find Full Text PDF
Article Synopsis
  • * A study was conducted to validate the effectiveness of this biomarker by assessing immune responses in individuals before and after using Insecticide Treated Nets (ITNs) in a malaria-endemic region.
  • * Results showed a significant drop in specific antibodies (IgG) against the gSG6-P1 peptide immediately after ITN use, indicating its potential as a reliable indicator for both short-term and longer-term evaluations of ITN effectiveness in reducing human-vector contact.
View Article and Find Full Text PDF

Summary Objective: The development of a biomarker of exposure based on the evaluation of the human antibody response specific to Anopheles salivary proteins seems promising in improving malaria control. The IgG response specific to the gSG6-P1 peptide has already been validated as a biomarker of An. gambiae exposure.

View Article and Find Full Text PDF