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Articles by D. Dianou
Total Records ( 3 ) for D. Dianou
  D. Zongo , B.G. Kabre , J.N. Poda and D. Dianou
  A comparative study was conducted from October to December 2005 in two different epidemiological settings for schistosomiasis in the West of Burkina Faso. The first area of study, the Panamasso, village is characterized by the presence of a river of low flow. In this area, farming is the main activity of the population. The second area of study, the villages of Bala and Bossora, is characterized by the presence of a permanent pond. The area is also known as the pond of hippopotamus. Fishing is the main activity of the area. The study conducted in these area revealed that transmission of schistosomiasis depend mainly on three factors: The distance separating the habitat from the contaminated zones, the level of infestation and the type of activity practiced by the population. The prevalence of S. mansoni was high among farmers (39.06%) than fisher (16.35%). These results were significant depending on the prevalence of S. mansoni. The pond in the village of Panamasso is infested with molluscs, particularly Biomphalaria pfeifferi. The study also revealed the presence of S. haematobium and other parasites (ankylostome, Himenolepis nana, Entamoeba hystolytica, Entamoeba coli) in the area of study.
  L.W. Nitiema , D. Dianou , J. Simpore , S.D. Karou , P.W. Savadogo and A.S. Traore
  An anaerobic digester fed with shea cake rich in tannins and phenolic compounds rich-shea cake and previously inoculated with anaerobic sludge from the pit of a slaughterhouse, enabled six months acclimatization of the bacteria to aromatic compounds. Afterwards, digester waste water samples were subject to successive culture on media with 1 g L-1 tannic acid allowing the isolation of a bacterial strain coded AB. Strain AB was facultatively anaerobic, mesophilic, non-motile, non-sporulating, catalase and oxidase negative bacterium, namely strain AB, was isolated from an anaerobic digester fed with shea cake rich in tannins and phenolic compounds, after inoculation with anaerobic sludge from the pit of a slaughterhouse and enrichment on tannic acid. The coccoid cells occurred in pair, short or long chains and stained Gram-positive. Strain AB fermented a wide range of carbohydrates including glucose, fructose, galactose, raffinose, arabinose, sucrose, maltose, lactose, starch and cellulose. Optimum growth occurred with glucose and tannic acid at 37°C and pH 8. The pH, temperature and salt concentration for growth ranged from 5 to 9, 20 to 45°C and 0 to 15 g L-1, respectively. Strain AB converted tannic acid to gallic acid. These features were similar to those of the Streptococcus genus. The determination of tannic acid hydrolysis end products, ability to utilize various organic acids, alcohols and peptides, GC% of the DNA, the sequencing of 16S rRNA gene and DNA-DNA hybridization will permit to confirm this affiliation and to determine the species.
  D. Zongo , B.G. Kabre , D. Dianou , B. Savadogo and J.N. Poda
  A study on malacologiques factors in the transmission of Schistosoma haematobium took place in December 2007 at the villages of Daguilma and Tanguiga in Burkina Faso in order to combat schistosomiasis is diversified both in humans than in the intermediate host. A malacological investigation was followed by a parasitological study in order to give a progress report on the dynamics of urinary schistosomiasis and also, that of the mollusc intermediary host in the study area. Malacological Investigations at the dams of the two villages indicated Bulinus truncatus mollusk as host responsible for the transmission of urinary schistosomiasis. The natural infestation tests underscored made that only Bulinus truncatus was responsible for the transmission of urinary schistosomiasis. The parasitological results obtained showed an overall prevalence rate of Schistosoma haematobium from 11.2 to 15.6% and Daguilma to Tanguiga. The study by sex showed that Daguilma, the difference in prevalence was not significant (p = 0.2311) among men (16.6) and females (06.4%). In contrast to Tanguiga, this difference in prevalence between men (23.4) and women (03.3%) showed a slight significance (p = 0.0407). The results concerning parasite Schistosoma haematobium and malacological and in the villages of Daguilma and Tanguiga has helped to highlight the expansion of urinary schistosomiasis; the importance of the behaviour of the local population and the presence of Bulinus truncatus in the dam of Daguilma village.
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