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Articles by Mpoame Mbida
Total Records ( 3 ) for Mpoame Mbida
  Wamba Gery , Mpoame Mbida , Mamoudou Abdoulmoumini and Sevidzem Silas Lendzele
  Background and Objective: Gastrointestinal helminths prevail in non-human primates in captive sites of Cameroon. This study aimed at evaluating the prevalence of gastrointestinal parasites in captive non-human primates (NHPs). Materials and Methods: The faeces of 240 NHPs were analysed using standard parasitological techniques in 4 captive sites. Results: The overall prevalence was 62.5%. The prevalence with respect to site was 95% in Garoua zoo, 50.6% in Limbe Wildlife Centre, 82.9% in Mvog-Betsi Zoo-Botanical Garden and 58.2% in Mefou Primate Sanctuary. Sixteen parasite species were identified including: 6 protozoans, 6 nematodes, 1 trematode, 2 cestodes and 1 unidentified cyst. Balantidium coli was the most prevalent protozoa (18.3%), Trichuris sp. was the most prevalent nematode (12.9%), Taenia sp. was the most prevalent cestode (2.9%) and Schistosoma sp. was the only trematode (0.4%). High parasite prevalence was noticed in guenons and mangabeys, followed by papionines with baboons being the most infected. Apes like Chimpanzees had the lowest prevalence (50.7%). Mangabeys and guenons had the highest egg per gram count (EPG) (350±0 and 387.5±151.83), followed by papionines and baboons. Apes had the lowest EPG and was higher in chimpanzees (149.32±178.05). Body condition score decreased as EPG increased. It was noticed that EPG differed greatly with NHP. Enhancing risk factors like housing, group size, density and category of captive sites, all influenced EPG. Conclusion: Gastrointestinal helminths occur in non-human primates of Cameroon and their infestation rates and burden depends on associated risk factors.
  Yamssi Cedric , Vincent Khan Payne , Noumedem Anangmo Christelle Nadia , Norbert Kodjio , Etung Kollins , Leonelle Megwi , Jules-Roger Kuiate and Mpoame Mbida
  Background and Objective: Coccidiosis remains one of the most important infectious cause of digestive disorders in rabbits. The aim of this study was to evaluate in vitro anticoccidial and antioxidant activities of Psidium guajava (P. guajava) extracts. Materials and Methods: Sporulation inhibition bioassay was used to evaluate the activity of Psidium guajava extracts on sporulation of Eimeria flavescens, Eimeria stiedae, Eimeria intestinalis and Eimeria magna oocysts and sporozoites. The set up was examined after 24 and 48 h for the oocysticidal activities and after 12 and 24 h for anti-sporozoidal activities. The antioxidant activity was determined by measuring FRAP (ferric reducing-antioxidant power), 1,1-Diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging and nitric oxide (NO) radical scavenging. The cytotoxicity of the most active extract was determined against animal cell lines fibroblast L929, HEPG2 and HeLa cells using MTT assay. The impact of the toxicity was established by analyzing the selectivity index (SI) values. Data obtained were analyzed using one-way analysis of variance (ANOVA) and were determined by Waller-Duncan test using SPSS. Results: The highest efficacy of tested plant extracts was recorded after 24 h, which varied according to different concentrations of the tested extracts. The highest efficacy was 88.67±2.52% at the concentration of 30 mg mL–1 of the methanolic extract against E. intestinalis. Most extracts including the aqueous extract exhibited good anti-sporozoidal activities against E. flavescens, E. stiedae, E. intestinalis and E. magna sporozoites at 1000 μg mL–1. The highest viability inhibitory percentage was 97.00±1.73% at a concentration of 1000 μg mL–1 of P. guajava methanolic extract against E. intestinalis sporozoites. These results also showed that methanolic and ethyl acetate extract, possessed strong antioxidant activities (IC50<20 μg mL–1). The methanolic extract of P. guajava exhibited CC50 of >30 μg mL–1 against selected cell lines, suggesting that the compounds were not toxic. Phytochemical screening of the most active extract showed presence of alkaloids, flavonoids, saponins and phenols. Conclusion: These results provide confirmation to the usage of Psidium guajava against
coccidiosis by Agricultural farmers in Cameroon.
  Vincent K. Payne , Che J. Nchangnwi , Cedric Yamssi , Nadia C.A. Noumedem , Pierre N. Baleguel and Mpoame Mbida
  Background and Objective: Human filariasis are important tropical diseases world-wide. Certain types of zoonotic filariasis may also be transmitted to humans in climate zones cooler than the tropics. The aim of this study was to determine the prevalence of human onchocerciasis. Materials and Methods: The study was carried out in a portion of the Sanaga river located in the Sanaga valley from Edea in the forest area to Mbakoau in the Savannah area. Eight villages namely Mbebe, Nyanon-Kikot, Nyannon-Binoum, Ntol, Ntol-Lenouck, Bonepoupa, Ombe and Mbakaou were selected. In each of the 8 villages chosen, a sample of the population was admitted following the inclusion and exclusion criteria. A total of 609 persons were examined during the period of this study. Data was analyzed using Chi-Square statistics. The frequencies were calculated and presented on tables. The p<0.05 were considered significant. Results: A total of 11(1.8%) persons had mansonellosis. Most of these were from the transition habitat type. Eighty-six (14.1%) presented with common signs of epilepsy with higher percentages recorded in persons in the transition habitat type and among those above 10 years old. Studying the association of the various diseases, the results gave higher prevalence for epilepsy among people infected with onchocerciasis. Conclusion: Onchocerciasis, Malaria and Epilepsy appear to be of primary concern thus something must be done by health authorities and other sectors responsible for public health issues, in order to effectively control these insect-borne diseases and the nuisance they cause.
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