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Articles by A. Agbonon
Total Records ( 5 ) for A. Agbonon
  K. Tona , A. Agbonon , K. Eklu-Gadegbeku , A. Teteh , P. Simons , J. Buyse , N. Everaert , B. Kemp , E. Decuypere and M. Gbeassor
  In commercial poultry husbandry practice, the hatchery takes over the incubation of bird eggs in order to provide as many day-old chicks as needed at any time to farmers. The main bottleneck for poultry industry development in Togo is the lack of day-old chick supply. Indeed, there is no proficient hatchery which can cover the needs of the farmers because of lack of information about hatchery management or people trained as hatchery managers. Also, there is lack of information about management practice aspects, etc. With the aim to promote poultry industry in Togo, an interuniversity project [Catholic University of Leuven (KUL) and University of Lome (UL)] as a model of poultry industry development was implemented. Specific objectives of the current project are to implement research and development activities on better conditions of incubation and adapted management practices focusing mainly on (1) Effect of early transferring of layer breeders hatching eggs on embryo parameters and hatchability, (2) Comparison of different chicken genotypes in Embryo Physiology, (3) Effects of heat conditioning at d 16 to 18 of incubation or during early broiler rearing on embryo physiology, post-hatch growth performance and heat tolerance, (4) Effect of low albumen quantity on chick embryo and post-hatch parameters, (5) Effects of In ovo-administration of L-carnitine on hatching events and juvenile performance of layer-type chick, (6) Interaction effects of mixing hatching eggs of differential embryo growth trajectory and incubator CO2concentration on embryo physiological parameters, (7) Effect of delayed feed access on production and blood parameters of layer-type chicks and (8) Induced moulting of layer chickens.
  A. Diallo , K. Eklu-Gadegkeku , T. Mobio , S. Moukha , A. Agbonon , K. Aklikokou , E.E. Creppy and M. Gbeassor
  The present study had evaluated the protective effect of hydroalcoholic (50-50: v/v) and aqueous extracts of L. kerstingii and M. oleifera against lipid peroxidation induced in vivo and in vitro by either cadmium or ethanol. In a first series of experiments, lipid peroxidation induced in vitro by cadmium (5 μg mL-1) is decreased by hydroalcoholic extracts of M. oleifera and L. kerstingii (100 μg mL-1) by 94% and 50% (p<0.001) respectively whereas their aqueous extracts (100 μg mL-1) reduced the cadmium induced lipid peroxidation by 94% (p<0.001) and 44% (p<0.001) respectively. In vivo, the pretreatment with hydroalcoholic extracts of M. oleifera and L. kerstingii at 1 g kg-1 b.wt. reduced significantly ethanol-induced lipid peroxidation, in liver, by 53 and 50% (p<0.001), respectively. Similar results were found in the kidney even though lipid peroxidation is slightly increased by ethanol in this organ.
  A. Diallo , K. Eklu-Gadegkeku , A. Agbonon , K. Aklikokou , E.E. Creppy and M. Gbeassor
  In this study we investigated the acute and subchronic toxicity of hydroalcoholic (50-50: v/v) extract of Lannea kerstingii Engl. and K. Krause (Anacardiaceae) stem bark in Wistar rats. In the acute test, the dose of 5.000 mg kg-1 was used for the test limit. Animals were then observed individually 1 h post dosing and at least once daily for 14 days. The subchronic toxicity was evaluated through biochemical, haematological, body and relative organ weight of rats using daily oral doses of 500 and 1000 mg kg-1 b.wt., during 28 days. The limit dose of 5.000 mg kg-1 did not cause mortality or any sign of acute toxicity in any of the rats tested in the observatory period. In the subchronic test, L. kerstingii at 1000 mg kg-1 decreased significantly (p<0.05) the increment of body weight of rats from the 2nd to the 4th week. The decrease of the increment was 11, 11 and 10% on the 2nd, 3rd and 4th week, respectively. The relative weight of the spleen in the group treated with 1000 mg kg-1 b.wt. (0.19±0.01) showed a significant increase (p<0.05) as compared to control group (0.15±0.01). Biochemical and haematological parameters measured were similar between the control and treated groups.
  B. Bakoma , K. Eklu-Gadegkeku , A. Agbonon , K. Aklikokou , E. Bassene and M. Gbeassor
  The root of B. ferruginea is traditionnally used as a treatment for type 2 diabetes. The present study was investigated to evaluate the preventive effect of B. ferruginea on some markers of metabolic syndrome in type 2 diabetes (hyperlipidemia, glucose intolerance, obesity and oxidative stress) induced by high fructose and fat diet in male Wistar rat. The rats received fructose diet (10 mL kg-1 per day) during 42 days; at the 15th day to the 42nd day 15 min before, they received distilled water for high fructose diet group, metformine 100 mg kg-1 per day or extract 125 and 250 mg kg-1 per day for treatment group. The control group received only distilled water during the experiment. After 6 weeks of experiment, fasting blood glucose, liver MDA level, body weight gain, intra abdominal grease, serum triglyceride (TG) and total cholesterol levels in treated groups were significant lower than that of high- fructose diet group. However, rats in treated group were not found to have a significant change of blood HDL Cholesterol level. In the oral glucose tolerance test, rats in treated group had a significantly reduced blood glucose concentration during 180 min after glucose load, indicating that B. ferruginea root improved glucose tolerance. In conclusion, our plant can prevent metabolic syndrome induced by high fructose diet.
  A. Missebukpo , K. Metowogo , A. Agbonon , K. Eklu-Gadegbeku , K. Aklikokou and M. Gbeassor
  Ixora coccinea L. (Rubiaceae) possess anti-inflammatory and antitussive properties. It is traditionally used for various respiratory ailments including catarrhal bronchitis cough and asthma. In the present study we investigated anti-asthmatic properties of an hydroalcoholic leaf extract of I. coccinea in an ovalbumin (OVA)-induced asthmatic rat model. We also evaluated the anti-allergic property of the extract by Abdominal Wall (AW) method and histamine-induced cutaneous reaction. Rats were sensitized with intraperitoneal (i.p.) ovalbumin and challenged by OVA intranasally to induce chronic airway inflammation. Randomized treatment groups of sensitized rats received I. coccinea extract or distilled water. I. coccinea extract at doses of 1000 and 1500 mg kg-1 suppressed eosinophilia and significantly inhibited AHR in rat with OVA-induced asthma. Based on lung histopathological study using hematoxylin and eosin I. coccinea reduced inflammatory cell infiltration and repaired epithelial cells damaged. In addition the extract at the same doses significantly decreased the diameter of the blue spot (16 and 55%, respectively) compared with the controls and inhibited the skin reactions induced by histamine (23.55 and 53.36%, respectively). In conclusion our results provide evidence that I. coccinea has anti-asthmatic properties and then can support its use in folk medicine to treat asthma.
 
 
 
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