Yasir Alruwaili | Jouf University (original) (raw)

Papers by Yasir Alruwaili

Research paper thumbnail of Identification and dynamics of novel scaffolds against <i>Enterococcus faecium</i> serine hydroxymethyltransferase enzyme: a potential target for antibiotics development

Journal of Biomolecular Structure & Dynamics, Sep 14, 2023

Research paper thumbnail of Staphylococcus aureus Induced Wound Infections Which Antimicrobial Resistance, Methicillin- and Vancomycin-Resistant: Assessment of Emergence and Cross Sectional Study

Infection and Drug Resistance, Aug 1, 2023

Research paper thumbnail of Superior efficacy of combination antibiotic therapy versus monotherapy in a mouse model of Lyme disease

Frontiers in Microbiology, Nov 20, 2023

Research paper thumbnail of Antiviral activities of olive oil apigenin and taxifolin against SARS-CoV-2 RNA-dependent RNA polymerase (RdRP): In silico, pharmacokinetic, ADMET, and in-vitro approaches

A novel coronavirus strain called SARS-CoV-2 first appeared in China in December 2019. Natural p... more A novel coronavirus strain called SARS-CoV-2 first appeared in China in December 2019. Natural products are significant sources of prospective and new antiviral medications, and new antiviral drug research has advanced significantly in recent years. The current study allows us to select specific components of olive oil that are thought to be anti-SARS-CoV-2 and assess their impact on SARS-CoV-2 in vitro. The 26 compounds of olive oil were obtained from the PubChem database and docked against the RdRP of SARS-CoV-2 (pdb id: 6XQB) by autodock vina 1 1 2 linux x86 software. Cytotoxicity and antiviral activity were measured by the MTT assay protocol (the crystal violet method). The findings revealed that the range of the olive oil compound’s molecular docking binding affinity score against the RdRP SARS-CoV-2 target was 5.9–18.2 kcal/mol. The best compound is apigenin since it has a low energy value of −18.2 kcal/mol, followed by taxifolin, which has an energy value of −14.2 kcal/mol. On the other hand, the molecule with the lowest energy is believed to be the good one. Additionally, Lipinski’s criteria and AD-MET analysis supported the created apigenin and taxifolin’s status as a secure pharmaceutical substance. Also, apigenin and taxifolin showed moderate antiviral effectiveness against SARS-CoV-2 in vitro, with SI values of 9.7 and 8.79, respectively, compared with olive oil’s crude SI value of 9.57. According to our results, we think that olive oil is an essential source of cutting-edge SARS-CoV-2 antiviral drugs, especially apigenin and taxifolin compounds.

Research paper thumbnail of GC-MS-based profiling and ameliorative potential of Carissa opaca Stapf ex Haines fruit against cardiac and testicular toxicity: An In vivo study

Research paper thumbnail of Antiviral activities of olive oil apigenin and taxifolin against SARS-CoV-2 RNA-dependent RNA polymerase (RdRP): In silico, pharmacokinetic, ADMET, and in-vitro approaches

Cogent Food & Agriculture

A novel coronavirus strain called SARS-CoV-2 first appeared in China in December 2019. Natural pr... more A novel coronavirus strain called SARS-CoV-2 first appeared in China in December 2019. Natural products are significant sources of prospective and new antiviral medications, and new antiviral drug research has advanced significantly in recent years. The current study allows us to select specific components of olive oil that are thought to be anti-SARS-CoV-2 and assess their impact on SARS-CoV-2 in vitro. The 26 compounds of olive oil were obtained from the PubChem database and docked against the RdRP of SARS-CoV-2 (pdb id: 6XQB) by autodock vina 1 1 2 linux x86 software. Cytotoxicity and antiviral activity were measured by the MTT assay protocol (the crystal violet method). The findings revealed that the range of the olive oil compound’s molecular docking binding affinity score against the RdRP SARS-CoV-2 target was 5.9–18.2 kcal/mol. The best compound is apigenin since it has a low energy value of −18.2 kcal/mol, followed by taxifolin, which has an energy value of −14.2 kcal/mol. On the other hand, the molecule with the lowest energy is believed to be the good one. Additionally, Lipinski’s criteria and AD-MET analysis supported the created apigenin and taxifolin’s status as a secure pharmaceutical substance. Also, apigenin and taxifolin showed moderate antiviral effectiveness against SARS-CoV-2 in vitro, with SI values of 9.7 and 8.79, respectively, compared with olive oil’s crude SI value of 9.57. According to our results, we think that olive oil is an essential source of cutting-edge SARS-CoV-2 antiviral drugs, especially apigenin and taxifolin compounds.

Research paper thumbnail of Molecular Profile and the Effectiveness of Antimicrobials Drugs Against Staphylococcus aureus and Pseudomonas aeruginosa in the Diagnostic Approaches of Otitis Infection

Infection and Drug Resistance

Background: Otitis externa and otitis media are two types of ear infections that affect people of... more Background: Otitis externa and otitis media are two types of ear infections that affect people of all ages, although they are more common in newborns and young children. Antibiotic usage, healthcare, and advanced age all play a role in the development of this illness. Methods: Fifty-eight patients with various kinds of infections of the ears were voluntary patients attending the outpatient clinics of the Prince Mutaib Bin Abdulaziz Hospital in Sakaka, Al Jouf, Saudi Arabia, examined to evaluate the role of bacteria and the likely significance of plasmids in their antibiotic resistance as ear infectious agents. Results: Staphylococcus aureus and Pseudomonas aeruginosa are the most prevalent bacteria found in ear infections. The greatest number of major bacterial isolates were S. aureus (54%), followed by P. aeruginosa (13%), whereas a smaller number of isolates (3%) were from Streptococcus pyogenes, Bacillus subtilis, and Proteus vulgaris, respectively. Mixed growth was noted in 3.4% of instances. The isolation rate for Gram-positive organisms was 72%, while the rate for Gram-negative species was 28%. All the isolates had DNA greater than 14 kilobases. Hind III analysis of the plasmid DNA extracted from the resistant strains of ear infection demonstrated that antibiotic-resistance plasmids were extensively dispersed. Exotoxin A PCR amplification indicated 396 pb PCR-positive DNA for all identified samples, with the exception of three strains for which no band was observed. Patients in the epidemiological study ranged in number, but all were linked together for the purposes of the study because of their shared epidemiological characteristics. Conclusion: Vancomycin, linezolid, tigecycline, rifampin, and daptomycin are all antibiotics that have been shown to be effective against S. aureus and P. aeruginosa. Microbiological pattern evaluation and antibiotic sensitivity patterns of the microorganisms providing empirical antibiotics are becoming increasingly crucial to minimize issues and the development of antibiotic-resistant strains.

Research paper thumbnail of Argania spinosa (L.) essential oil: Phytochemical Characterization, Molecular Docking, Anti-staphylococcal, and Anti-pseudomonal Activity

Medicinal plants exemplify an infinite source of effective remedies and traditional thanks to the... more Medicinal plants exemplify an infinite source of effective remedies and traditional thanks to the various active components they contain. Secondary metabolites current in plant extracts, for instance, essential oils, have significant pharmacological properties, including antimicrobic effects. This experimental investigation aims to determine Argan oil’s volatile compounds and exanimate their in vitro antimicrobial properties. In silico simulations, molecular docking and pharmacokinetics (absorption, distribution, metabolism, excretion, and toxicity (ADMET) and drug-likeness prediction revealed the processes underlying the in vitro biological possessions. Gas chromatography–mass spectrophotometry (GC-MS) was used for chemical screening of the main components of Argan oil. In silico molecular docking studies were applied as an attempt to investigate the ability of selected bioactive constituents of extra argan oil to act as effective against Pseudomonas aeruginosa (P. aeruginosa) and ...

Research paper thumbnail of The Role of Vitamin D in Reducing the Risk of Metabolic Disturbances That Cause Cardiovascular Diseases

Journal of Cardiovascular Development and Disease

Among the most common problems facing public health today is a lack of vitamin D, which plays a r... more Among the most common problems facing public health today is a lack of vitamin D, which plays a role in the physiological processes of chronic illness conditions. Vitamin D deficiency in metabolic disorders has primary effects on osteoporosis, obesity, hypertension, diabetes, and cardiovascular disease (CVD). Vitamin D acts as a “co-hormone” in the various tissues of the body, and it has been found that vitamin D receptors (VDR) are present on all cell types, suggesting that vitamin D has a wide range of effects on most cells. Recently, there has been a surge in interest in assessing its roles. Vitamin D insufficiency increases the risk of diabetes because it lowers insulin sensitivity, and also raises the risk of obesity and CVD because of its effect on the body’s lipid profile, particularly in terms of the prevalence of dangerously high levels of low-density lipoproteins (LDL). Furthermore, vitamin D insufficiency is often related to CVD and connected risk factors, highlighting th...

Research paper thumbnail of Superior Efficacy of Combination Antibiotic Therapy versus Monotherapy in a Mouse Model of Lyme Disease

Lyme disease (LD) results from the most prevalent tick-borne infection in North America, with ove... more Lyme disease (LD) results from the most prevalent tick-borne infection in North America, with over 476,000 estimated cases annually. The disease is caused byBorrelia burgdorferi (Bb)which transmits through the bite of Ixodid ticks. Most cases treated soon after infection are resolved by a short course of oral antibiotics. However, 10-20% of patients experience chronic symptoms because of delayed or incomplete treatment, a condition called Post-Treatment Lyme Disease (PTLD). SomeBbpersists in PTLD patients after the initial course of antibiotics and an effective treatment to eradicate the persistentBbis needed. Other organisms that cause persistent infections, such asM. tuberculosis, are cleared using a combination of therapies rather than monotherapy. A group of Food and Drug Administration (FDA)-approved drugs efficacious againstBbwere used in monotherapy or in combination in mice infected withBb. Different methods of detection were used to assess the efficacy of the treatments in ...

Research paper thumbnail of Antimicrobial Resistance Pattern, Pathogenicity and Molecular Properties of Hypervirulent Klebsiella pneumonia (hvKp) among Hospital-Acquired Infections in the Intensive Care Unit (ICU)

Microorganisms

Hypervirulent Klebsiella pneumoniae (hvKp) is a new emerging variant of K. pneumoniae that is inc... more Hypervirulent Klebsiella pneumoniae (hvKp) is a new emerging variant of K. pneumoniae that is increasingly reported worldwide. The variant hvKp is known to cause severe invasive community-acquired infections such as metastatic meningitis, pyogenic liver abscesses (PLA) and endophthalmitis, but its role in hospital-acquired infections (HAIs) is little known. The aim of this study was to evaluate the prevalence of hvKp among hospital-acquired (HA) K. pneumoniae infections in the intensive care unit (ICU) and to compare between hvKp and classical K. pneumoniae (cKP) regarding antimicrobial resistance pattern, virulence and molecular characteristics. The study was cross-sectional and included 120 ICU patients suffering from HA K. pneumoniae infections between January and September 2022. K. pneumoniae isolates were subjected to antimicrobial susceptibility testing and detection of extended-spectrum-β-lactamase (ESBL) production by the Phoenix 100 automated microbiology system, string tes...

Research paper thumbnail of Antibacterial efficacy of indigenous Pakistani honey against extensively drug-resistant clinical isolates of Salmonella enterica serovar Typhi: an alternative option to combat antimicrobial resistance

BMC Complementary Medicine and Therapies

Background Extensively drug-resistant (XDR) Salmonella enterica serovar Typhi (S. Typhi) poses a ... more Background Extensively drug-resistant (XDR) Salmonella enterica serovar Typhi (S. Typhi) poses a grave threat to public health due to increased mortality and morbidity caused by typhoid fever. Honey is a promising antibacterial agent, and we aimed to determine the antibacterial activity of honey against XDR S. Typhi. Methods We isolated 20 clinical isolates of XDR S. Typhi from pediatric septicemic patients and determined the minimum inhibitory concentrations (MICs) of different antibiotics against the pathogens using the VITEK 2 Compact system. Antimicrobial-resistant genes carried by the isolates were identified using PCR. The antibacterial efficacy of five Pakistani honeys was examined using agar well diffusion assay, and their MICs and minimum bactericidal concentrations (MBCs) were determined with the broth microdilution method. Results All 20 isolates were confirmed as S. Typhi. The antibiogram phenotype was confirmed as XDR S. Typhi with resistance to ampicillin (≥ 32 µg/mL),...

Research paper thumbnail of Antibiotic-Resistant Bacteria, Antimicrobial Resistance Genes, and Antibiotic Residue in Food from Animal Sources: One Health Food Safety Concern

Microorganisms

Antibiotic-resistant bacteria causing foodborne serious illnesses can be found in contaminated fo... more Antibiotic-resistant bacteria causing foodborne serious illnesses can be found in contaminated food. Therefore, this study aimed to identify the pathogens, genes, and antimicrobial residues present in raw milk and meat. We collected 40 raw milk and 40 beef samples using the aseptic method from various parts of the Faisalabad metropolis, Pakistan. The samples were cultured on blood, MacConkey, and UTI chrome agar. The VITEK 2 compact system was used for microbial identification and determination of minimum inhibitory concentrations. Antimicrobial resistance genes for extended-spectrum β-lactamases, methicillin resistance in Staphylococcus aureus, and carbapenem resistance were identified using molecular techniques. ELISA was used to determine the tetracycline residue level in each sample. The beef samples showed polymicrobial contamination with 64 bacterial isolates, with Escherichia coli (29; 45.3%) and Klebsiella pneumoniae (11; 17.1%) predominating. The milk samples showed polymic...

Research paper thumbnail of Identification and dynamics of novel scaffolds against <i>Enterococcus faecium</i> serine hydroxymethyltransferase enzyme: a potential target for antibiotics development

Journal of Biomolecular Structure & Dynamics, Sep 14, 2023

Research paper thumbnail of Staphylococcus aureus Induced Wound Infections Which Antimicrobial Resistance, Methicillin- and Vancomycin-Resistant: Assessment of Emergence and Cross Sectional Study

Infection and Drug Resistance, Aug 1, 2023

Research paper thumbnail of Superior efficacy of combination antibiotic therapy versus monotherapy in a mouse model of Lyme disease

Frontiers in Microbiology, Nov 20, 2023

Research paper thumbnail of Antiviral activities of olive oil apigenin and taxifolin against SARS-CoV-2 RNA-dependent RNA polymerase (RdRP): In silico, pharmacokinetic, ADMET, and in-vitro approaches

A novel coronavirus strain called SARS-CoV-2 first appeared in China in December 2019. Natural p... more A novel coronavirus strain called SARS-CoV-2 first appeared in China in December 2019. Natural products are significant sources of prospective and new antiviral medications, and new antiviral drug research has advanced significantly in recent years. The current study allows us to select specific components of olive oil that are thought to be anti-SARS-CoV-2 and assess their impact on SARS-CoV-2 in vitro. The 26 compounds of olive oil were obtained from the PubChem database and docked against the RdRP of SARS-CoV-2 (pdb id: 6XQB) by autodock vina 1 1 2 linux x86 software. Cytotoxicity and antiviral activity were measured by the MTT assay protocol (the crystal violet method). The findings revealed that the range of the olive oil compound’s molecular docking binding affinity score against the RdRP SARS-CoV-2 target was 5.9–18.2 kcal/mol. The best compound is apigenin since it has a low energy value of −18.2 kcal/mol, followed by taxifolin, which has an energy value of −14.2 kcal/mol. On the other hand, the molecule with the lowest energy is believed to be the good one. Additionally, Lipinski’s criteria and AD-MET analysis supported the created apigenin and taxifolin’s status as a secure pharmaceutical substance. Also, apigenin and taxifolin showed moderate antiviral effectiveness against SARS-CoV-2 in vitro, with SI values of 9.7 and 8.79, respectively, compared with olive oil’s crude SI value of 9.57. According to our results, we think that olive oil is an essential source of cutting-edge SARS-CoV-2 antiviral drugs, especially apigenin and taxifolin compounds.

Research paper thumbnail of GC-MS-based profiling and ameliorative potential of Carissa opaca Stapf ex Haines fruit against cardiac and testicular toxicity: An In vivo study

Research paper thumbnail of Antiviral activities of olive oil apigenin and taxifolin against SARS-CoV-2 RNA-dependent RNA polymerase (RdRP): In silico, pharmacokinetic, ADMET, and in-vitro approaches

Cogent Food & Agriculture

A novel coronavirus strain called SARS-CoV-2 first appeared in China in December 2019. Natural pr... more A novel coronavirus strain called SARS-CoV-2 first appeared in China in December 2019. Natural products are significant sources of prospective and new antiviral medications, and new antiviral drug research has advanced significantly in recent years. The current study allows us to select specific components of olive oil that are thought to be anti-SARS-CoV-2 and assess their impact on SARS-CoV-2 in vitro. The 26 compounds of olive oil were obtained from the PubChem database and docked against the RdRP of SARS-CoV-2 (pdb id: 6XQB) by autodock vina 1 1 2 linux x86 software. Cytotoxicity and antiviral activity were measured by the MTT assay protocol (the crystal violet method). The findings revealed that the range of the olive oil compound’s molecular docking binding affinity score against the RdRP SARS-CoV-2 target was 5.9–18.2 kcal/mol. The best compound is apigenin since it has a low energy value of −18.2 kcal/mol, followed by taxifolin, which has an energy value of −14.2 kcal/mol. On the other hand, the molecule with the lowest energy is believed to be the good one. Additionally, Lipinski’s criteria and AD-MET analysis supported the created apigenin and taxifolin’s status as a secure pharmaceutical substance. Also, apigenin and taxifolin showed moderate antiviral effectiveness against SARS-CoV-2 in vitro, with SI values of 9.7 and 8.79, respectively, compared with olive oil’s crude SI value of 9.57. According to our results, we think that olive oil is an essential source of cutting-edge SARS-CoV-2 antiviral drugs, especially apigenin and taxifolin compounds.

Research paper thumbnail of Molecular Profile and the Effectiveness of Antimicrobials Drugs Against Staphylococcus aureus and Pseudomonas aeruginosa in the Diagnostic Approaches of Otitis Infection

Infection and Drug Resistance

Background: Otitis externa and otitis media are two types of ear infections that affect people of... more Background: Otitis externa and otitis media are two types of ear infections that affect people of all ages, although they are more common in newborns and young children. Antibiotic usage, healthcare, and advanced age all play a role in the development of this illness. Methods: Fifty-eight patients with various kinds of infections of the ears were voluntary patients attending the outpatient clinics of the Prince Mutaib Bin Abdulaziz Hospital in Sakaka, Al Jouf, Saudi Arabia, examined to evaluate the role of bacteria and the likely significance of plasmids in their antibiotic resistance as ear infectious agents. Results: Staphylococcus aureus and Pseudomonas aeruginosa are the most prevalent bacteria found in ear infections. The greatest number of major bacterial isolates were S. aureus (54%), followed by P. aeruginosa (13%), whereas a smaller number of isolates (3%) were from Streptococcus pyogenes, Bacillus subtilis, and Proteus vulgaris, respectively. Mixed growth was noted in 3.4% of instances. The isolation rate for Gram-positive organisms was 72%, while the rate for Gram-negative species was 28%. All the isolates had DNA greater than 14 kilobases. Hind III analysis of the plasmid DNA extracted from the resistant strains of ear infection demonstrated that antibiotic-resistance plasmids were extensively dispersed. Exotoxin A PCR amplification indicated 396 pb PCR-positive DNA for all identified samples, with the exception of three strains for which no band was observed. Patients in the epidemiological study ranged in number, but all were linked together for the purposes of the study because of their shared epidemiological characteristics. Conclusion: Vancomycin, linezolid, tigecycline, rifampin, and daptomycin are all antibiotics that have been shown to be effective against S. aureus and P. aeruginosa. Microbiological pattern evaluation and antibiotic sensitivity patterns of the microorganisms providing empirical antibiotics are becoming increasingly crucial to minimize issues and the development of antibiotic-resistant strains.

Research paper thumbnail of Argania spinosa (L.) essential oil: Phytochemical Characterization, Molecular Docking, Anti-staphylococcal, and Anti-pseudomonal Activity

Medicinal plants exemplify an infinite source of effective remedies and traditional thanks to the... more Medicinal plants exemplify an infinite source of effective remedies and traditional thanks to the various active components they contain. Secondary metabolites current in plant extracts, for instance, essential oils, have significant pharmacological properties, including antimicrobic effects. This experimental investigation aims to determine Argan oil’s volatile compounds and exanimate their in vitro antimicrobial properties. In silico simulations, molecular docking and pharmacokinetics (absorption, distribution, metabolism, excretion, and toxicity (ADMET) and drug-likeness prediction revealed the processes underlying the in vitro biological possessions. Gas chromatography–mass spectrophotometry (GC-MS) was used for chemical screening of the main components of Argan oil. In silico molecular docking studies were applied as an attempt to investigate the ability of selected bioactive constituents of extra argan oil to act as effective against Pseudomonas aeruginosa (P. aeruginosa) and ...

Research paper thumbnail of The Role of Vitamin D in Reducing the Risk of Metabolic Disturbances That Cause Cardiovascular Diseases

Journal of Cardiovascular Development and Disease

Among the most common problems facing public health today is a lack of vitamin D, which plays a r... more Among the most common problems facing public health today is a lack of vitamin D, which plays a role in the physiological processes of chronic illness conditions. Vitamin D deficiency in metabolic disorders has primary effects on osteoporosis, obesity, hypertension, diabetes, and cardiovascular disease (CVD). Vitamin D acts as a “co-hormone” in the various tissues of the body, and it has been found that vitamin D receptors (VDR) are present on all cell types, suggesting that vitamin D has a wide range of effects on most cells. Recently, there has been a surge in interest in assessing its roles. Vitamin D insufficiency increases the risk of diabetes because it lowers insulin sensitivity, and also raises the risk of obesity and CVD because of its effect on the body’s lipid profile, particularly in terms of the prevalence of dangerously high levels of low-density lipoproteins (LDL). Furthermore, vitamin D insufficiency is often related to CVD and connected risk factors, highlighting th...

Research paper thumbnail of Superior Efficacy of Combination Antibiotic Therapy versus Monotherapy in a Mouse Model of Lyme Disease

Lyme disease (LD) results from the most prevalent tick-borne infection in North America, with ove... more Lyme disease (LD) results from the most prevalent tick-borne infection in North America, with over 476,000 estimated cases annually. The disease is caused byBorrelia burgdorferi (Bb)which transmits through the bite of Ixodid ticks. Most cases treated soon after infection are resolved by a short course of oral antibiotics. However, 10-20% of patients experience chronic symptoms because of delayed or incomplete treatment, a condition called Post-Treatment Lyme Disease (PTLD). SomeBbpersists in PTLD patients after the initial course of antibiotics and an effective treatment to eradicate the persistentBbis needed. Other organisms that cause persistent infections, such asM. tuberculosis, are cleared using a combination of therapies rather than monotherapy. A group of Food and Drug Administration (FDA)-approved drugs efficacious againstBbwere used in monotherapy or in combination in mice infected withBb. Different methods of detection were used to assess the efficacy of the treatments in ...

Research paper thumbnail of Antimicrobial Resistance Pattern, Pathogenicity and Molecular Properties of Hypervirulent Klebsiella pneumonia (hvKp) among Hospital-Acquired Infections in the Intensive Care Unit (ICU)

Microorganisms

Hypervirulent Klebsiella pneumoniae (hvKp) is a new emerging variant of K. pneumoniae that is inc... more Hypervirulent Klebsiella pneumoniae (hvKp) is a new emerging variant of K. pneumoniae that is increasingly reported worldwide. The variant hvKp is known to cause severe invasive community-acquired infections such as metastatic meningitis, pyogenic liver abscesses (PLA) and endophthalmitis, but its role in hospital-acquired infections (HAIs) is little known. The aim of this study was to evaluate the prevalence of hvKp among hospital-acquired (HA) K. pneumoniae infections in the intensive care unit (ICU) and to compare between hvKp and classical K. pneumoniae (cKP) regarding antimicrobial resistance pattern, virulence and molecular characteristics. The study was cross-sectional and included 120 ICU patients suffering from HA K. pneumoniae infections between January and September 2022. K. pneumoniae isolates were subjected to antimicrobial susceptibility testing and detection of extended-spectrum-β-lactamase (ESBL) production by the Phoenix 100 automated microbiology system, string tes...

Research paper thumbnail of Antibacterial efficacy of indigenous Pakistani honey against extensively drug-resistant clinical isolates of Salmonella enterica serovar Typhi: an alternative option to combat antimicrobial resistance

BMC Complementary Medicine and Therapies

Background Extensively drug-resistant (XDR) Salmonella enterica serovar Typhi (S. Typhi) poses a ... more Background Extensively drug-resistant (XDR) Salmonella enterica serovar Typhi (S. Typhi) poses a grave threat to public health due to increased mortality and morbidity caused by typhoid fever. Honey is a promising antibacterial agent, and we aimed to determine the antibacterial activity of honey against XDR S. Typhi. Methods We isolated 20 clinical isolates of XDR S. Typhi from pediatric septicemic patients and determined the minimum inhibitory concentrations (MICs) of different antibiotics against the pathogens using the VITEK 2 Compact system. Antimicrobial-resistant genes carried by the isolates were identified using PCR. The antibacterial efficacy of five Pakistani honeys was examined using agar well diffusion assay, and their MICs and minimum bactericidal concentrations (MBCs) were determined with the broth microdilution method. Results All 20 isolates were confirmed as S. Typhi. The antibiogram phenotype was confirmed as XDR S. Typhi with resistance to ampicillin (≥ 32 µg/mL),...

Research paper thumbnail of Antibiotic-Resistant Bacteria, Antimicrobial Resistance Genes, and Antibiotic Residue in Food from Animal Sources: One Health Food Safety Concern

Microorganisms

Antibiotic-resistant bacteria causing foodborne serious illnesses can be found in contaminated fo... more Antibiotic-resistant bacteria causing foodborne serious illnesses can be found in contaminated food. Therefore, this study aimed to identify the pathogens, genes, and antimicrobial residues present in raw milk and meat. We collected 40 raw milk and 40 beef samples using the aseptic method from various parts of the Faisalabad metropolis, Pakistan. The samples were cultured on blood, MacConkey, and UTI chrome agar. The VITEK 2 compact system was used for microbial identification and determination of minimum inhibitory concentrations. Antimicrobial resistance genes for extended-spectrum β-lactamases, methicillin resistance in Staphylococcus aureus, and carbapenem resistance were identified using molecular techniques. ELISA was used to determine the tetracycline residue level in each sample. The beef samples showed polymicrobial contamination with 64 bacterial isolates, with Escherichia coli (29; 45.3%) and Klebsiella pneumoniae (11; 17.1%) predominating. The milk samples showed polymic...