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Search Results: 1 - 10 of 2982 matches for " Aline;Nacoulma "
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Polyphenol Content and Antioxidant Activity of Fourteen Wild Edible Fruits from Burkina Faso
Aline Lamien-Meda,Charles Euloge Lamien,Moussa M.Y. Compaoré,Roland N.T. Meda,Martin Kiendrebeogo,Boukare Zeba,Jeanne F. Millogo,Odile G. Nacoulma
Molecules , 2008, DOI: 10.3390/molecules13030581
Abstract: A total of fourteen (14) species of wild edible fruits from Burkina Faso wereanalyzed for their phenolic and flavonoid contents, and their antioxidant activities usingthe DPPH, FRAP and ABTS methods. The data obtained show that the total phenolic andtotal flavonoid levels were significantly higher in the acetone than in the methanol extracts.Detarium microcarpum fruit had the highest phenolic and the highest flavonoid content,followed by that of Adansonia digitata, Ziziphus mauritiana, Ximenia americana andLannea microcarpa. Significant amounts of total phenolics were also detected in the otherfruit species in the following order of decreasing levels: Tamarindus indica > Sclerocaryabirrea > Dialium guineense > Gardenia erubescens > Diospyros mespiliformis > Parkiabiglobosa > Ficus sycomorus > Vitellaria paradoxa. Detarium microcarpum fruit alsoshowed the highest antioxidant activity using the three antioxidant assays. Fruits with highantioxidant activities were also found to possess high phenolic and flavonoid contents.There was a strong correlation between total phenolic and flavonoid levels and antioxidantactivities.
Antiacetylcholinesterase and antioxidant activity of essential oils from six medicinal plants from Burkina Faso
Kiendrebeogo, Martin;Coulibaly, Ahmed Y.;Nebie, Roger C. H.;Zeba, Boukaré;Lamien, Charles E.;Lamien-Meda, Aline;Nacoulma, Odile G.;
Revista Brasileira de Farmacognosia , 2011, DOI: 10.1590/S0102-695X2011005000008
Abstract: in this investigation, we evaluated essential oils from six medicinal plants from burkina faso for their antiacetylcholinesterase and antioxidant abilities. the chemotype of most active were also determined. the best antiacetylcholinesterase activities were recorded for the essential oils of eucalyptus camaldulensis (ic50 18.98 μ g/ml) and ocimum canum (ic50 36.16 μ g/ml). their chemotype have been related to the 1,8-cineole one. both essential oils demonstrated a linear mixed non competitive inhibition. the essential oil of ocimum basilicum which belong to the linalool-eugenol chemotype exhibited the best radical scavenging activity (ic50 3.82 μ g/ml) and reducing power (531.75 mg aae/g). in comparison with gallic and ascorbic acids, o. basilicum essential oil evidenced interesting antioxidant activities. the antiacetylcholinesterase and antioxidant activities of essential oils were discussed in regard with their chemical composition.
β-lactamase Molecular Classes Linked to Production Ways from Clinical Isolates in Burkina Faso/West Africa
Boukare Zeba,Jacques Simpore,Odile Germaine Nacoulma
Journal of Applied Sciences , 2007,
Abstract: β-lactamase production ways and inhibition patterns were investigated in cell suspensions of clinical isolates. The purpose of this research was prior to investigate the different β-lactamase molecular classes occurring in Burkina Faso owing to the local practice of β-lactam antibiotics. The use of specific inhibitors enabled to draw up an inhibition profile and consequently to assign an enzyme to accurate molecular class of β-lactamase. At the same time, β-lactamase expression ways were explored and correlated to the inhibition profiles. The current results pointed out two main groups of organisms. The first group of isolates secretes β-lactamases mainly by inducible way. Interestingly this bacterial group carries molecular class C of β-lactamase. The second group of isolates uses partial inducible and partial constitutive way for enzyme expression. These bacteria mostly carry molecular class A of β-lactamases. The sole exception encountered during these investigations is an organism, expressing exclusively by the constitutive way an enzyme that is found to belong to molecular class B of β-lactamases.
Activités insecticides de Striga hermonthica (Del.) Benth (Scrophulariaceae) sur Callosobrichus maculatus (Fab.) (Coleoptera : Bruchidae)
Kiendrebeogo M.,Ouedraogo AP.,Nacoulma OG.
Biotechnologie, Agronomie, Société et Environnement , 2006,
Abstract: Insecticidal activities of Striga hermonthica (Del.) Benth (Scrophulariacecae) on Callobruchus maculatus (Fab.) (Coleptera Bruchidae). This paper deals with insecticidal potentialities of Striga hermonthica (Del.) (Scrophulariaceae) in protection of cowpea Vigna unguculata (L.) Walp against Callosobruchus maculatus (Fab.) (Coleoptera: Bruchidae) during storage. Crude acetone extract at 0,5% w/w (100 mg of extract for 20 g of grain) exhibits 48% of ovicidal effect and then reduces by half emergence rate of adult beetles at the first generation. This extract shows a weak insecticide activity against adults of C. maculatus. Petroleum ether fraction (0,4% w/w ) of the crude extract reveals ovicidal (51%) and larvicidal (72%) effects which reduce the emergence rate of adults to only 9%. LD50 and LD90 are monitored during crude extract fractionation to follow ovicidal and larvicidal compounds and to evaluate their efficacy during the isolation procedure. One fraction, mainly composed of two triterpenoid compounds has been identified as responsible of the ovicidal activity of S. hermonthica while the origin of the larvicidal activity hasn’t been identified.
ADRB2, ADRB3, BDKRB2 and MTNR1B Genes Related to Body fat Modulation and Its Interaction with Physical Activity and Blood Pressure  [PDF]
Aline Marcadenti
Open Journal of Endocrine and Metabolic Diseases (OJEMD) , 2015, DOI: 10.4236/ojemd.2015.57012
Abstract: Hypertension (HTN) is the risk factor that most contributes to mortality rates in the world, followed by physical inactivity and obesity. Despite the influence of genetic factors on the genesis of HTN, blood pressure levels are strongly influenced by environmental factors such as physical inactivity and overweight, characterizing it as a polygenic disease. Genetic components and environmental factors such as physical exercise may modulate the phenotype of individuals predisposed to medical conditions such as HTN, independently of modifiable factors such as increased levels of adiposity; however, studies have shown that polymorphic forms detected in genes involved in the mechanisms of blood pressure regulation and also related to body fat modulation may interact with physical activity levels and HTN. The aim of this article is to review the interactions between polymorphisms in ADRB2, ADRB3, BDKRB2 and MTNR1B genes, physical activity and blood pressure.
Biological and Toxicological Study of Aqueous Root Extract from Mitragyna inermis (Willd oktze) Rubiaceae
Yamba Ouedraogo,Innocent Pierre Guissou,Odile Germaine Nacoulma
International Journal of Pharmacology , 2007,
Abstract: We reported the results of biological and toxicological study, realized on Mitragyna inermis Willd Oktze, one specie of family of Rubiaceae, well known in traditional medicine in Burkina Faso for his intensification potentialities of resistance against multiple pathologies like infectious and parasitic diseases, adynamia, rheumatic and osteoarthritis diseases. So we have formulated hypothesis of stimulation of organism’s defenses for a scientist research. The steeping freeze-dried of the plant’s product has been used for different assays: General acute toxicity estimation on Ico mouse (NMRI Han) by intraperitoneal route and orally administration on rabbit from the value of LD50 obtained with the mouse. Biological study: The kinetic interaction between the plant’s product chemical group and the evolution of biological elements medium of immunity on the rabbit, has been appreciated. The biological elements include white blood cells, red blood cells, lymphocytes, platelets, total proteins, albumin and globulins. The following results have been obtained about the study: A Lethal Dose (LD50) resulted from maceration (acute general toxicity) at the rate of 800 mg kg-1 of corporal weight showing a bit toxic product. An interaction between vegetable’s extract chemical group and biological elements of rabbit which is expressed by: An increasing (13 to 18%) of total proteins from serum; this increasing was notably after 24 h of administration. Albumin decreasing of 10% in comparison with initial rate, indicated haptens action of plant’s extract chemical products. α1, α2, β and γ globulins increasing, respectively 46.8, 14.31 and 26% during the first day of administration of the extract. A lymphocyte increasing of 35% 24 h after administration of the product. This rate is more increased after the second administration; White blood cells are also increasing. These results show an obvious capacity of the plant’s macered extract to stimulate organism natural defenses in relation with antigenous-antibody reaction. This will be an interesting perspective for complementary treatment of pathology like HIV diseases.
Ocular Manifestations among HIV Infected Children in Ouagadougou, Burkina Faso  [PDF]
Caroline Yonaba, Angèle Kalmogho, Kongnimissom Apoline Sondo, Madi Nacoulma, Kigocha Okengo, Flore Ouédraogo, Chantal Zoungrana, Aissata Kabore, Fla Koueta, Ludovic Kam
Open Journal of Pediatrics (OJPed) , 2016, DOI: 10.4236/ojped.2016.62027
Abstract: Ocular manifestations among HIV infected children are diverse and global incidence varies from 7% to 75%. At this age, eye lesions are often unnoticed because of the incapacity to express eye discomfort. The purpose of this study is to describe ocular manifestations among HIV-infected children and hence associated factors in the Department of Paediatrics at the Yalgado Ouédraogo Teaching Hospital. This was a cross-sectional descriptive and analytical study conducted between July 2014 and December 2014. A complete ophthalmic examination was systematically done to all HIV-positive children attending the clinic, as part of their routine medical visit. The most recent socio-demographic, clinical, biological and treatment data were registered. Seventy-nine children had an ocular examination and among them 92.4% were on ARV treatment. The incidence of ocular manifestations was 46.7%. Median age was 8 years old (interquartile 6 - 12 years old). Sex ratio was 1.3. The risk of ocular manifestations involvement among boys was twice than that of girls. More than half (59.5%) of children who had ocular problems had not expressed ocular discomfort. Ocular adnexal lesions were more common (35.4%) compared to eye segments (8.9%) lesions. Anterior segment and posterior segment lesions were statistically associated with immune system depression (p = 0.003 and 0.001). However, this relationship was not statistically significant (p = 0.15). Five out of seven children who had eye fundus lesions had CD4 count <350 cells/mm3. Ocular manifestations were very common among HIV infected children in our context. Ophthalmic examination should be systematic at admission and regularly repeated during follow-up.
Phytochemical Composition, Antioxidant and Xanthine Oxidase Inhibitory Activities of Amaranthus cruentus L. and Amaranthus hybridus L. Extracts
Fernand W. Nana,Adama Hilou,Jeanne F. Millogo,Odile G. Nacoulma
Pharmaceuticals , 2012, DOI: 10.3390/ph5060613
Abstract: This paper describes a preliminary assessment of the nutraceutical value of Amaranthus cruentus (A. cruentus) and Amaranthus hybridus (A. hybridus), two food plant species found in Burkina Faso. Hydroacetonic (HAE), methanolic (ME), and aqueous extracts (AE) from the aerial parts were screened for in vitro antioxidant and xanthine oxidase inhibitory activities. Phytochemical analyses revealed the presence of polyphenols, tannins, flavonoids, steroids, terpenoids, saponins and betalains. Hydroacetonic extracts have shown the most diversity for secondary metabolites. The TLC analyses of flavonoids from HAE extracts showed the presence of rutin and other unidentified compounds. The phenolic compound contents of the HAE, ME and AE extracts were determined using the Folin–Ciocalteu method and ranged from 7.55 to 10.18 mg Gallic acid equivalent GAE/100 mg. Tannins, flavonoids, and flavonols ranged from 2.83 to 10.17 mg tannic acid equivalent (TAE)/100 mg, 0.37 to 7.06 mg quercetin equivalent (QE) /100 mg, and 0.09 to 1.31 mg QE/100 mg, respectively. The betacyanin contents were 40.42 and 6.35 mg Amaranthin Equivalent/100 g aerial parts (dry weight) in A. cruentus and A. hybridus, respectively. Free-radical scavenging activity expressed as IC 50 (DPPH method) and iron reducing power (FRAP method) ranged from 56 to 423 μg/mL and from 2.26 to 2.56 mmol AAE/g, respectively. Xanthine oxidase inhibitory activities of extracts of A. cruentus and A. hybridus were 3.18% and 38.22%, respectively. The A. hybridus extract showed the best antioxidant and xanthine oxidase inhibition activities. The results indicated that the phytochemical contents of the two species justify their traditional uses as nutraceutical food plants.
Prevalence of blaSHV genes in clinical isolates of Klebsiella pneumoniae at Saint Camille medical Center in Ouagadougou. Isolation of blaSHV11-like gene
Boukaré Zeba, Pere Jacques Simporé, Odile G Nacoulma, Jean-Marie Frere
African Journal of Biotechnology , 2004,
Abstract: Five bacterial strains (4 Klebsiella pneumoniae and 1 Escherichia coli) representative of pathogenic species and resistant to β-lactam antibiotics are investigated to isolate the genes responsible of β--lactamase activity. The use of engineering techniques enables us to show the widespread of blaSHV genes particularly in clinical isolates of K. pneumoniae. Our results highlighted an atypical blaSHV-11 gene.
Evaluation of Flavonoids and Total Phenolic Contents of Stem Bark and Leaves of Parkia biglobosa (Jacq.) Benth. (Mimosaceae)-Free Radical Scavenging and Antimicrobial Activities
H. Millogo-Kone,M. Lompo,F. Kini,S. Asimi,I.P. Guissou,O. Nacoulma
Research Journal of Medical Sciences , 2012,
Abstract: The total phenolics and the flavonoids contents of stem barks and leaves of Parkia biglobosa harvested at different periods of the year, on 2 different areas of Burkina Faso (Yako and Lèna), were determined. The total phenolics were extracted according to Harborne s method and also by the means of a soxhlet apparatus. The determination of the phenolics contents was conducted with 8 extracts using tannic acid as standard. The flavonoids contents of the 8 extracts were also determined, using quercetin as a reference substance. The results showed that the total phenolics contents vary significantly all year round at the same area and also from Lèna to Yako. They also revealed that the flavonoids contents of the leaves harvested at Yako ranged from 1.49-1.80% throughout the year. The results also confirmed that the leaves contain more flavonoids than the barks. Antioxidant activity was determined by the means of 1, 1-diphenyl-2-picrylhydrazyl (DPPH) assay. The results showed effectiveness with a radical inhibition ranging from 25.53±3.56-55.449±4.53 mg mL-1. The antibacterial assays on gram positive Staphylococcus aureus showed that the hydroalcoholic extract of stem bark harvested in May at Yako was the most effective of all the extracts.
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