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Antibiogram of Pseudomonas isolates and potential public health impact of an abattoir effluent in Benin City, Nigeria

*Odjadjare, E. E. O., and Ebowemen, M. J.

Environmental, Public Health and Bioresource Microbiology Research Group (EPHBIOMREG), Department of Biological Sciences, Benson Idahosa University, P.M.B. 1100 Benin City, Edo State, Nigeria

*Correspondence to: eodjadjare@biu.edu.ng

Abstract:
Background: Bacteria from abattoir wastes are often linked to livestock carcasses previously exposed to continuous antimicrobial use and misuse; thereby creating opportunity for community spread of multidrug resistant (MDR) strains such as Pseudomonas spp. The aim of this study was to investigate the antibiogram of Pseudomonas isolates and bacteriological quality of an abattoir effluent in lieu of its potential public health impact.

Methodology: Water samples were collected weekly for six weeks from discharge point (DP) of the abattoir effluent, effluent receiving canal confluence point (CP), and 500 m upstream (US) and 500 m downstream (DS) from points where CP made contact with the Ikpoba River, Benin City, Nigeria. Bacteria spp. were isolated, enumerated (heterotrophic bacterial plate, coliform, Escherichia coli and Pseudomonas counts) and identified using standard microbiological techniques. Identity of Pseudomonas isolates was confirmed by PCR while antibiogram of selected isolates was evaluated and interpreted according to the disk diffusion method of the Clinical and Laboratory Standards Institute (CLSI).

Results: Heterotrophic bacteria plate counts (HPC) varied from 1.1×103 ± 0.28 CFU/ml to 1.95×106 ± 0.48 CFU/ml; total coliform counts ranged between 0.0 and 1.2×106 ± 0.28 CFU/ml while mean E. coli count varied from 0.0 to 4.9×105 ± 0.49 CFU/ml, and Pseudomonas counts were between 0.0 to 1.4×103 CFU/ml. The selected strains of Pseudomonas spp (n=50) showed resistance to oxacillin (100%), vancomycin (52%), tetracycline (50%), gentamycin (26%) and ceftriaxone (20%), while they were sensitive to ceftazidime (82%), ofloxacin (80%) and amikacin (74%). MDR phenotype was observed in 9 (18%) of the test isolates.

Conclusion: The study revealed that untreated abattoir effluent was a considerable source of MDR Pseudomonas spp. among other bacteriological pollutants (e.g. HPC, coliform and E. coli) that could compromise the quality of the receiving river in lieu of public health concerns of riverside communities that depend on this vital water resource for their subsistence.

Keywords: Pseudomonas, MDR,  antibiogram, abattoir effluent, public health

Received March 16, 2020; Revised April 24, 2020; Accepted April 26, 2020

Copyright 2020 AJCEM Open Access. This article is licensed and distributed under the terms of the Creative Commons Attrition 4.0 International License <a rel=”license” href=”http://creativecommons.org/licenses/by/4.0/”, which permits unrestricted use, distribution and reproduction in any medium, provided credit is given to the original author(s) and the source.

 

Antibiogramme des isolats de Pseudomonas et impact potentiel sur la santé publique d’un effluent d’abattoir à Benin City, Nigeria

*Odjadjare, E. E. O., et Ebowemen, M. J.

Groupe de recherche sur l’environnement, la santé publique et la microbiologie des bioressources (EPHBIOMREG), Département des sciences biologiques, Université Benson Idahosa, P.M.B. 1100 Benin City, Edo State, Nigeria Continue reading “Antibiogram of Pseudomonas isolates and potential public health impact of an abattoir effluent in Benin City, Nigeria”

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Rifampicin resistant tuberculosis among patients attending General Hospital, Kagarko, Kaduna State, Nigeria

*1Bitet D. E., 2Kumurya, S. A., 3Joseph, L., and 4Bathelomow, P.

*1General Hospital, Zango Kataf, Ministry of Health and Human Services, Kaduna State, Nigeria

2Department of Medical Laboratory Science, Faculty of Allied Health Science, Bayero University Kano, Nigeria

3Quality Control Unit, Directorate of Diagnostic Services, Ministry of Health, Gombe State 4General Hospital, Kagarko, Ministry of Health and Human Services, Kaduna State, Nigeria

*Correspondence to: ezekieldogobetet@ymail.com; +2348036523901

Abstract:
Background: The National Tuberculosis and Leprosy Control Program (NTBLCP) in collaboration with Koninklijke Nederlandse Centrale Vereniging tot bestrijding der tuberculose (KNCV) (Dutch Tuberculosis Foundation) and National Agency for Control of AIDS (NACA) installed and equipped many health centres in Kaduna State, Nigeria with modern diagnostic tools (GeneXpert) to offer molecular services for the rapid detection of Mycobacterium tuberculosis complex (MTBC) and rifampin resistance.

Methodology: This study analyzed routine samples from patients attending General Hospital Kagarko, from September 2016 to March 2019 with total samples of 1056 from 1056 patients. The GeneXpert machine was used for the rapid detection of M. tuberculosis and rifampin resistance (RIF) from all the sputum samples received in the clinical laboratory department of the hospital.

Results: A total of 182 (17.2%) samples tested positive for M. tuberculosis out of which 5 (2.7%) were resistant to rifampicin. Males were more frequently affected with a prevalence of 23% than females with a rate of 10.7% (X2=27.801, p=0.0001). RIF was detected in 3 male and 2 female patients (p=1.000). The prevalence of MTB was highest in the age group 36-45 years (23%) and age group 26-35 years (20.3%) and lowest in age group 5-15 years with 10.9% (t=0.599, p=0.55).

Conclusion: There is need for the GeneXpert technology to be replicated in other health centers across the state and the country at large to reduce the burden of multi-drug resistant tuberculosis (MDR-TB) in Nigeria.

Keywords: RIF resistance, MDR-TB, GeneXpert, Mycobacterium tuberculosis

Received November 14, 2019; Revised April 21, 2020; Accepted April 23, 2020

Copyright 2020 AJCEM Open Access. This article is licensed and distributed under the terms of the Creative Commons Attrition 4.0 International License <a rel=”license” href=”http://creativecommons.org/licenses/by/4.0/”, which permits unrestricted use, distribution and reproduction in any medium, provided credit is given to the original author(s) and the source.

Tuberculose résistante à la rifampicine chez les patients de l’hôpital général de Kagarko, État de Kaduna, Nigéria

*1Bitet D. E., 2Kumurya, S. A., 3Joseph, L., et 4Bathelomow, P. Continue reading “Rifampicin resistant tuberculosis among patients attending General Hospital, Kagarko, Kaduna State, Nigeria”

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Corrigendum: Prevalence and factors associated with Helicobacter pylori infection among treatment naïve dyspeptic adults in University of Benin Teaching Hospital, Benin City, Nigeria

1Odigie, A. N., *2Adewole, A. J., and 2Ekunwe, A. A.
1Edo State Hospital Management Board, Benin City, Nigeria
2Department of Family Medicine, University of Benin Teaching Hospital, PMB 1111, Benin City, Nigeria

*Correspondence to: afolabi.adewole74@gmail.com; +2348037222755

Corrigendum to: Odigie et al. Afr. J. Clin. Exper. Microbiol. 2020; 21 (2): 97 – 105; https://dx.doi.org/10.4314/ajcem.v21i2.3

In their published article, the authors detected errors with the initials and address of the first author. These errors have been corrected as appropriate.

Prévalence et facteurs associés à l’infection à Helicobacter pylori chez les adultes dyspeptiques naïfs de traitement à l’hôpital universitaire de Bénin, Benin City, Nigéria

1Odigie, A. N. *2Adewole, A. J., et 2Ekunwe, A. A.

1Conseil de gestion de l’hôpital d’État d’Edo, Benin City, Nigéria
2Département de médecine familiale, hôpital universitaire de Bénin, PMB 1111, Benin City, Nigéria

*Correspondance à: afolabi.adewole74@gmail.com; +2348037222755
Rectificatif à: Odigie et al. Afr. J. Clin. Exper. Microbiol. 2020; 21 (2): 97 – 105; https://dx.doi.org/10.4314/ajcem.v21i2.3

Dans leur article publié, les auteurs ont détecté des erreurs avec les initiales et l’adresse du premier auteur. Ces erreurs ont été corrigées le cas échéant.

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Corrigendum: Prevalence and factors associated with Helicobacter pylori infection among treatment naïve dyspeptic adults in University of Benin Teaching Hospital, Benin City, Nigeria

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Microbiome: pharmacokinetics, pharmacodynamics and drug/xenobiotic interactions

Ojezele, M. O.

Department of Pharmacology & Therapeutics, Delta State University, Nigeria Correspondence to: matlar2002@gmail.com, +2348033923332

Abstract:

The participation of microbiota in myriads of physiological, metabolic, genetic and immunological processes shows that they are a fundamental part of human existence and health maintenance. The efficiency of drugs’ absorption depends on solubility, stability, permeability and metabolic enzymes produced by the body and gut microbiota. Two major types of microbiota-drug interaction have been identified; direct and indirect. The use of antibiotics is a direct means of targeting intestinal microbes and short-term use of antibiotic can significantly alter the microbiome composition. It is noteworthy that not every microbial drug metabolism is of benefit to the host as some drugs can shut down microbial processes as observed in the co-administration of antiviral sorivudine with fluoropyridimide resulting in a toxic buildup of fluoropyridimide metabolites from blockade of host fluoropyridimide by the microbial-sorivudine metabolite. It has been reported that many classes of drugs and xenobiotics modify the gut microbiome composition which may be detrimental to human health. Microbiome-drug interaction may be beneficial or detrimental resulting in either treatment success or failure which is largely dependent on factors such as microbial enzymes, chemical composition of candidate drug, host immunity and the complex relationship that exists with the microbiome. The effects of microbiota on pharmacology of drugs and vice versa are discussed in this review.

Keywords: microbiome; pharmacokinetic, pharmacodynamic, drug, xenobiotic

Received September 27, 2019; Revised November 30, 2019; Accepted December 3, 2019
Copyright 2020 AJCEM Open Access. This article is licensed and distributed under the terms of the Creative Commons Attrition 4.0 International License (http://creativecommmons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium, provided credit is given to the original author(s) and the source. Continue reading “Microbiome: pharmacokinetics, pharmacodynamics and drug/xenobiotic interactions”

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Serological evidence of association between Helicobacter pylori infection and coronary artery disease

1EL-Ageery, S. M., *1,4Gouda, N. S., 2Fawzy, I. M., 3Bahy-Eldeen, A., and 3Mahmoud, R.

1Medical Microbiology and Immunology Department, Faculty of Medicine, Mansoura University, Egypt

2Mansoura Central Laboratories, Clinical Pathology Department, Ministry of Health, Egypt

3Internal Medicine Department, Faculty of Medicine, Mansoura University, Egypt

4Medical Microbiology and Immunology Department, Faculty of Medicine, Northern Border University, Kingdom of Saudi Arabia

*Correspondence to: nawalsalama@gmail.com; 00966502933179

Abstract:

Background: Studies have reported relationship between chronic Helicobacter pylori infection and coronary artery disease (CAD). The cytotoxin-associated gene A product (CagA) is an immunodominant protein which indicates infection with virulent H. pylori strains. Significant associations of CagA-positive H. pylori strains with coronary artery disorders have been widely reported. H. pylori is also known to produce different heat shock proteins (HSPs) which can stimulate the production of specific antibody against microbial proteins and capable of eliciting autoimmune reaction against human tissue expressing HSPs such as vascular endothelial cells. The objectives of this study are to investigate the association between H. pylori and CagA with coronary atherosclerosis and CAD, and to determine the possible role of H. pylori HSP60 protein in increasing the risk of CAD development.

Methods: This study included 70 patients with stable angina and 70 age and gender-matched controls. Each group was evaluated by clinical history, physical examination, cardiac echocardiography (ECHO) and electrocardiography (ECG) with and without exercise. Fasting blood glucose, total cholesterol (TC), low density lipoprotein (LDL), high density lipoprotein (HDL) and triglycerides (TG) were estimated by automated enzymatic methods. H. pylori IgG, CagA IgG and HSP60 IgG were measured by enzyme-linked immunosorbent assay (ELISA) for both groups. Continue reading “Serological evidence of association between Helicobacter pylori infection and coronary artery disease”

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Prevalence and factors associated with Helicobacter pylori infection among treatment naïve dyspeptic adults in University of Benin Teaching Hospital, Benin City, Nigeria

1Odigie, A. O., *2Adewole, A. J., and 2Ekunwe, A. A.
1Department of Family Medicine, Central Hospital, Health Management Board, Benin City, Nigeria

2Department of Family Medicine, University of Benin Teaching Hospital, PMB 1111, Benin City, Nigeria *Correspondence to: afolabi.adewole74@gmail.com; +2348037222755

Abstract:

Background: Infectious diseases such as malaria, HIV/AIDS and tuberculosis have received tremendous attention globally but inspite of the widespread nature of infections caused by Helicobacter pylori, little attention has been paid to it especially in the developing countries. The objective of this study was to determine the prevalence of and factors associated with H. pylori infection among dyspeptic patients attending the University of Benin Teaching Hospital, Benin City, Nigeria.

Methodology: This was a hospital based descriptive cross-sectional study of 354 treatment naive dyspeptic patients aged 18 to 44 years, recruited consecutively after obtaining institutional ethical approval and subjects’ informed consent. A pre-tested interviewer administered questionnaire was used to obtain subjects’ data. The stool antigen test was used to detect H. pylori infection. Continue reading “Prevalence and factors associated with Helicobacter pylori infection among treatment naïve dyspeptic adults in University of Benin Teaching Hospital, Benin City, Nigeria”

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Green synthesis of Ag, Zn and Cu nanoparticles from aqueous extract of Spondias mombin leaves and evaluation of their antibacterial activity

*1Adeyemi, D. K., 2Adeluola, A. O., 1Akinbile, M. J., 1Johnson, O. O., and 1Ayoola, G. A.

1Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Lagos, Nigeria

2Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, University of Lagos, Nigeria

*Correspondence to: dadeyemi@unilag.edu.ng; dkadeyemi@yahoo.com; +2348033871465

Abstract:

Background: Nanotechnology offers an advantage as a green route for synthesis of metal nanoparticles (NPs) with plant extracts as capping agent. Spondias mombin is a fruit-bearing tree and its leaf extracts have been reported to possess anxiolytic, hypoglycaemic, antiepileptic, antipsychotic, sedative, antioxidant, and antimicrobial properties. The objective of the study is to determine the antibacterial potential of a simple non-toxic product of green synthesis of metallic (Ag, Zn and Cu) nanoparticles using the leaf of Spondias mombin aqueous extracts (SMAE) as a reducing and capping agents of the metal ions.

Methodology: Nanoparticles were characterized by UV visible spectrophotometeric analysis, Fourier Transform Infra-Red (FT-IR) spectrophotometer and scanning electron microscope (SEM). Antimicrobial activities of synthesized NPs against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa were determined by agar well diffusion technique. Continue reading “Green synthesis of Ag, Zn and Cu nanoparticles from aqueous extract of Spondias mombin leaves and evaluation of their antibacterial activity”

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Genotypic identification of coliforms isolated from cases of subclinical mastitis among pastoral herds in parts of Kaduna State, Nigeria

1, 2*Makolo, D., 2Suleiman, A. B., 2Olonitola, O. S., 3Bello, M., and 4Ahmadu, I.

1Department of Sciences, School of Preliminary Studies, Kogi State Polytechnic, Lokoja, Nigeria

2Department of Microbiology, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria

3Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria

4National Tuberculosis Reference Laboratory, Zaria, Nigeria *Correspondence to: makolodaniel@gmail.com

Abstract:

Background: Mastitis caused by Staphylococcus aureus was initially considered the major problem in dairy herds, but over the last few decades, the incidence of coliform mastitis has increased among the pastoral herds in Nigeria due to poor environmental and milking hygiene. Hence, this study was aimed at genotypic identification of coliform bacteria isolated from cases of bovine mastitis among pastoral herds in parts of Kaduna State, Nigeria.

Methods: A cross-sectional survey of 30 herds of cows across 7 Local Government Areas of Kaduna State, Nigeria, was conducted. One hundred and forty seven cows were proportionately selected by purposive sampling technique. The milk samples were aseptically collected and bacteriologically screened for coliform bacteria following standard bacteriological techniques. Nine out of 12 coliforms identified phenotypically were selected for PCR amplification and sequencing of their 16S rRNA gene. The Basic Local Alignment Search Tool (BLAST) analysis of the sequences obtained was done on the National Centre for Biotechnology Information (NCBI) data base, and isolates confirmed based on similarity to 16S rDNA sequences in the Gen Bank Continue reading “Genotypic identification of coliforms isolated from cases of subclinical mastitis among pastoral herds in parts of Kaduna State, Nigeria”

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Seroprevalence of Toxoplasma gondii infection and associated risk factors among pregnant women attending antenatal clinic at the Bamenda Regional Hospital, Cameroon

*1Nguemaïm, N. F., 2Takang, W. A., 2Dobgima, W. P., 2Guebidiang, B. M., 3Foumane, P., and 4Kamga, F. H. L.

1Department of Biomedical Sciences, Faculty of Health Sciences, University of Bamenda, Cameroon

2Department of Clinical Sciences, Faculty of Health Sciences, University of Bamenda, Cameroon

3Department of Obstetrics and Gynecology, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Cameroon

4Department of Medical Laboratory Science, Faculty of Health Sciences, University of Bamenda, Cameroon

*Correspondence to: ngflorema@yahoo.fr

Abstract:

Background: Toxoplasma gondii is a ubiquitous, coccidian parasite that causes toxoplasmosis. This infection, if acquired during pregnancy may result in severe damage. It affects a third of the world’s population. In many developing countries, its prevalence is unknown, and data concerning its seroprevalence among pregnant women is scarce in our study area. The objective of this study is to determine the seroprevalence of T. gondii infection and the associated risk factors among pregnant women attending the antenatal clinic (ANC) at the Bamenda Regional Hospital in Cameroon. The results obtained will be useful in giving an estimate of the prevalence among pregnant women thus informing policy on preventive measures.

Methodology: This is a descriptive cross-sectional study of pregnant women recruited between January and April 2018 using systematic random sampling technique. Socio-demographic data of participants and predisposing factors to toxoplasmosis were collected using a pretested structured questionnaire administered to them. Five milliliters of blood were collected and the serum screened for IgG and IgM antibodies against T. gondii using the cassette and buffer immunochromatographic method. The positive IgG cases were tested further by ELISA technique. Data were analyzed using SPSS version 20. Associations between variables were tested by Chi square and p value < 0.05 was considered statistically significant. Continue reading “Seroprevalence of Toxoplasma gondii infection and associated risk factors among pregnant women attending antenatal clinic at the Bamenda Regional Hospital, Cameroon”

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Biochemical and immunological characterization of haemolysin produced by Pseudomonas aeruginosa PAO1 isolated from burn wounds

*1Allam, A. A., 2El-shawadfy, A. M., 2Hassanein W. A. E., 2Hamza, E. H. A., 1Morad, E. A., 1El Shafei, M. A. E., and 3El Etriby, D. E.

1Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Egypt

2Botany and Microbiology Department, Faculty of Science, Zagazig University, Egypt

3Infection Control Unit, Specialized Internal Medicine Hospital, Mansoura University, Egypt

*Correspondence to: Egyayman66@yahoo.com; 0020155777174; 00201227989609

Abstract:

Background: Infection of burn wounds by multidrug-resistant (MDR) Pseudomonas aeruginosa (P. aeruginosa) is a leading cause of morbidity and mortality and remains one of the most challenging concerns for the burns unit. The aim of this study is purify and characterize the haemolysin produced by multidrug resistant P. aeruginosa PAO1 isolated from burn wounds.

Methods: Isolation and identification of P. aeruginosa from burns was done by standard bacteriological methods. P. aeruginosa PAO1 was identified by PCR amplification and sequencing of the 16S rRNA gene. The haemolysin of P. aeruginosa PAO1 was purified by 70% ammonium sulphate precipitation followed by gel filtration on Sephadex G-100, and separation by SDS-Poly Acrylamide Gel Electrophoresis. In vivo toxicity of the purified haemolysin was determined by intraperitoneal injection of Swiss albino mice, and in vitro toxin-antitoxin neutralization test was performed as previously described. Continue reading “Biochemical and immunological characterization of haemolysin produced by Pseudomonas aeruginosa PAO1 isolated from burn wounds”