Détermination des teneurs en polyphénols totaux, flavonoïdes totaux et tanins de jeunes feuilles non encore ouvertes de Piliostigma thonningii (Caesalpiniaceae)

Les jeunes feuilles non encore ouvertes de Piliostigma thonningii sont expressément utilisées par des tradipraticiens de Côte d’Ivoire pour la prise en charge de diverses pathologies. La présente étude visait à déterminer les teneurs en polyphénols totaux, en flavonoïdes et en tanins condensés d’extraits et de fractions de ces jeunes feuilles non encore ouvertes. Leurs métabolites secondaires ont été extraits par macération dans un mélange éthanol-eau (70/30 : v/v) avec un rendement de 36%. Le fractionnement successif de l’extrait hydroalcoolique obtenu par l’hexane, le dichlorométhane, l’acétate d’éthyle, l’éthanol et l’eau a donné des rendements variant de 5,55 à 33,33%. Le dosage des polyphénols totaux, des flavonoïdes et des tanins condensés a donné des teneurs variant entre 0,23 ± 0,05 et 146,67 ± 4,25 mg EAG/g d’extrait sec, entre 5,33 ± 0,62 et 112,11 ± 0,83 mg EQ/g d’extrait sec et entre 23,33 ± 0,94 et 38,33 ± 0,47 mg EAT/g d’extrait sec respectivement. De façon générale, l’extrait hydroalcoolique et la fraction à l’acétate d’éthyle sont les plus riches en métabolites secondaires, en polyphénols, en flavonoïdes et en tanins condensés.Mots clés : Piliostigma thonningii, rendements, polyphénols totaux, flavonoïdes, tanins

Impact of environmental factors on Biomphalaria pfeifferi vector capacity leading to human infection by Schistosoma mansoni in two regions of western Côte d'Ivoire.

ABSTRACT: BACKGROUND: Intestinal schistosomiasis remains a worrying health problem, particularly in western Côte d'Ivoire, despite control efforts. It is therefore necessary to understand all the factors involved in the development of the disease, including biotic and abiotic factors. The aim of this study was to examine the factors that could support the maintenance of the intermediate host and its vectorial capacity in western Côte d'Ivoire.MethodsData on river physicochemical, microbiological, and climatic parameters, the presence or absence of snails with Schistosoma mansoni, and human infections were collected between January 2020 and February 2021. Spearman rank correlation tests, Mann-Whitney, analysis of variance (ANOVA), and an appropriate model selection procedure were used to analyze the data.ResultsThe overall prevalence of infected snails was 56.05%, with infection reaching 100% in some collection sites and localities. Of 26 sites examined, 25 contained thermophilic coliforms and 22 contained Escherichia coli. Biomphalaria pfeifferi was observed in environments with lower land surface temperature (LST) and higher relative air humidity (RAH), and B. pfeifferi infection predominated in more acidic environments. Thermal coliforms and E. coli preferred higher pH levels. Lower maximum LST (LST_Max) and higher RAH and minimum LST (LST_Min) were favorable to E. coli, and lower LST_Max favored coliforms. The presence of B. pfeifferi was positively influenced by water temperature (T °C), LST_Min, RAH, and precipitation (Pp) (P 2 = 0.879, P = 0.04959).ConclusionsThe results obtained reflect the environmental conditions that are conducive to the maintenance of S. mansoni infection in this part of the country. To combat this infection as effectively as possible, it will be necessary not only to redouble efforts but also to prioritize control according to the level of endemicity at the village level

Proceedings of Patient Reported Outcome Measure’s (PROMs) Conference Oxford 2017: Advances in Patient Reported Outcomes Research

A33-Effects of Out-of-Pocket (OOP) Payments and Financial Distress on Quality of Life (QoL) of People with Parkinson’s (PwP) and their Carer

Les langues maternelles africaines et / ou ivoiriennes ont-elles des limites pédagogiques ou d’apprentissage – enseignement ?

The extensive research on the Ivorian languages have focused on aspects such as grammar, phonology, prosody, the enunciation, etc. The concern for the development of terminology likely to translate science (mathematics, physics, natural sciences, arts, technologies for the development of academic books was not the order of the day. Today the evolution of human society requires. The culture and identity of African countries must be promoted through an education system that has language support for the Ivorian languages and / or Africa. the development of a conceptual apparatus in this dynamic of nationalization of education is at the heart of the African development process

African Journal of Environmental Science and

Molecular characterization of intestinal protozoan parasites from children facing diarrheal disease and associated risk factors in Yamoussoukro, Côte d’Ivoir

metabolite analysis of the Arabidopsis Col-0 and csld5 roots

metabolite analysis of the Col-0 and csld5 roots. Corresponding authors are Nakano, Ryohei Thomas (rtnakano at sci.hokudai.ac.jp) and Dupree, Paul (pd101 at cam.ac.uk)

Association measures of claims-based algorithms for common chronic conditions were assessed using regularly collected data in Japan

OBJECTIVE: Although claims data are widely used in medical research, their ability to identify persons' health-related conditions has not been fully justified. We assessed the validity of claims-based algorithms (CBAs) for identifying people with common chronic conditions in a large population using annual health screening results as the gold standard.STUDY DESIGN AND SETTING: Using a longitudinal claims database (n=523,267) combined with annual health screening results, we defined the people with hypertension, diabetes, and/or dyslipidemia by applying health screening results as their gold standard, and compared them against various CBAs.RESULTS: By using diagnostic and medication code-based CBAs, sensitivity and specificity were 74.5% (95% Confidence Interval [CI], 74.2-74.8%) and 98.2% (98.2-98.3%) for hypertension, 78.6% (77.3-79.8%) and 99.6% (99.5-99.6%) for diabetes, and 34.5% (34.2-34.7%) and 97.2% (97.2-97.3%) for dyslipidemia, respectively. Sensitivity did not decrease substantially for hypertension (65.2% [95% CI, 64.9-65.5%]) and diabetes (73.0% [71.7-74.2%]) when we used the same CBAs without limiting to primary care settings.CONCLUSION: We employed regularly collected data to obtain CBA association measures which are applicable to a wide range of populations. Our framework can be a basis of the validity assessment of CBAs for identifying persons' health-related conditions with regularly collected data

Mineralogical and Chemical Characteristics of Clays Consumed in the District of Abidjan (Côte D’Ivoire)

International audienceClay materials of the quarry of Bingerville (district of Abidjan) have been characterized by chemical analysis, X-rays diffraction, infrared spectroscopy and thermal analysis. These materials contain kaolinite (41% - 84%), illite (4% - 10%), quartz (14% - 27%), goethite (2% - 5%) and small amount of rutile (1%) that are not toxic minerals. They also contain some heavy metals which are beneficial to human biological activity (cobalt, copper, molybdenum, zinc) in tiny quantities. Some other heavy metals (lead, cadmium) which are considered as poisonous for human are present in very low content. The samples characterized by relatively fine grains are moderately crystallized. Their specific surface area varied from 26 to 43 m2∙g−1. The mineralogical and physicochemical characteristics of these samples are like ones known for their healing properties. The consumption by internal way of studied materials, although it may be beneficial, requires a sifting to remove coarse grains (ϕ > 2 μm) and a previous microbiological control