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Abdullah Alyousef

Professor
🦠 Microbiology & Immunology
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About Research & Lab Publications (66)

Research Focus

Investigating bacterial pathogenesis and developing novel antimicrobial strategies.

BacteriologyAntimicrobial Strategies

Specialization

General: Medical Microbiology, Bacterial Sciences

Specific: Medical Bacteriology

66
Publications
1209
Total Citations
2025
Latest Publication

Affiliation

Department of Clinical Laboratory Sciences
College of Applied Medical Sciences
King Saud University, Riyadh, Saudi Arabia

Lab Work & Research Activities

Investigating bacterial pathogenesis and antimicrobial strategies. Active in medical education.

Skills & Expertise

BacteriologyMedical EducationAcademic TeachingAdministrative Work

Publications

Fetched from OpenAlex & CrossRef | 66 publications | 1209 total citations

Impact of coverage of drug availability regulations across the supply chain cycle in Saudi Arabia
Abdullah A. Alyousef, Mohamed Masoud, Mohammed Alturki, Faiyaz Shakeel, Sultan Alshehri
Saudi Pharmaceutical Journal
2025 DOI ↗ Open Access
Bridging Empathy and Excellence: The Impact of Nurse–Patient Communication on Quality of Care and Clinical Outcomes
Haya Mohammed Alqousi, Awatef Fahat Alanezi, Abdullah A. Alyousef, Noura Ibrahim Alohali, Amerah mussa hassan Alnami, Mona Faraj Alonazi et al.
Saudi Journal of Medicine and Public Health
2024 DOI ↗ Open Access

Effective nurse–patient communication is a cornerstone of high-quality healthcare, directly influencing patient satisfaction, safety, adherence to treatment, and clinical recovery. This paper explores the multifaceted relationship between communication and care quality through theoretical, emotional...

Bridging Empathy and Excellence: The Impact of Nurse–Patient Communication on Quality of Care and Clinical Outcomes
Haya Mohammed Alqousi, Awatef Fahat Alanezi, Abdullah A. Alyousef, Noura Ibrahim Alohali, Amerah mussa hassan Alnami, Mona Faraj Alonazi et al.
Saudi Journal of Medicine and Public Health
2024 DOI ↗ Open Access

Effective nurse–patient communication is a cornerstone of high-quality healthcare, directly influencing patient satisfaction, safety, adherence to treatment, and clinical recovery. This paper explores the multifaceted relationship between communication and care quality through theoretical, emotional...

Preeclampsia: A Complicated Pregnancy Condition-An Overview, Diagnosis, Management, and Nursing Interventions
F Saad, Abdulrahman Hamad Al Rutaiq, A Mohammed, Sabah N. Al Saad, Ayesha Ayedh Hamdan Aljohani, Abdullah A. Alyousef et al.
Journal of Ecohumanism
2024 📈 1 citations DOI ↗ Open Access

Background: Preeclampsia is a hypertensive disorder in pregnancy that affects 2–8% of pregnancies globally, contributing significantly to maternal and neonatal morbidity and mortality. It typically arises after 20 weeks of gestation, with varying severity and associated complications such as eclamps...

Insights on obstetric outcomes in pregnant individuals with Marfan Syndrome: evidence from the National Inpatient Sample
Saeed Baradwan, Majed Saeed Alshahrani, Khalid Khadawardi, Maha Tulbah, Osama Alomar, Abdullah A. Alyousef et al.
Minerva Obstetrics and Gynecology
2024 📈 2 citations DOI ↗

MFS is associated with increased risks of adverse obstetric outcomes, specifically AFAs and PPH. These results highlight the importance of monitoring these specific pregnancy outcomes in MFS individuals to ensure optimal maternal-fetal health.

Effect of Oral Consumption of Vitamin D on Uterine Fibroids: A Systematic Review and Meta-Analysis of Randomized Clinical Trials
Saud Abdullah Alsharif, Saeed Baradwan, Majed Saeed Alshahrani, Khalid Khadawardi, Rayan AlSghan, Ehab Badghish et al.
Nutrition and Cancer
2024 📈 5 citations DOI ↗

Impaired vitamin D status is highly prevalent among women with UFs. The objective of this first-ever systematic review and meta-analysis was to summarize the effect of vitamin D supplementation on the size of uterine fibroids (UFs). We performed a comprehensive literature search for published random...

The effect of antioxidant supplementation on dysmenorrhea and endometriosis-associated painful symptoms: a systematic review and meta-analysis of randomized clinical trials
Saeed Baradwan, Abdulrahim Gari, Hussein Sabban, Majed Saeed Alshahrani, Khalid Khadawardi, Ibtihal Abdulaziz Bukhari et al.
Obstetrics & Gynecology Science
2024 📈 14 citations DOI ↗ Open Access

This study aimed to review randomized controlled trials (RCTs) investigating the effects of dietary antioxidant supplements on the severity of endometriosis-related pain symptoms. The PubMed/Medline, Scopus, and Web of Science databases were searched until April 2022. Additionally, we manually searc...

The effect of alpha-lipoic acid supplementation on anthropometric, glycemic, lipid, oxidative stress, and hormonal parameters in individuals with polycystic ovary syndrome: a systematic review and meta-analysis of randomized clinical trials
Ahmed Abu‐Zaid, Saeed Baradwan, Ibtihal Abdulaziz Bukhari, Abdullah A. Alyousef, Mohamed Abuzaid, Saleh A. K. Saleh et al.
Obstetrics & Gynecology Science
2023 📈 6 citations DOI ↗ Open Access

This systematic review and meta-analysis aimed to examine the effect of the antioxidant alpha-lipoic acid (ALA) on various cardiometabolic risk factors and hormonal parameters in patients with polycystic ovary syndrome (PCOS). We searched PubMed, EMBASE, SCOPUS, Cochrane Library, and Web of Science ...

Comparison of Letrozole and Clomiphene Citrate in Pregnancy Outcomes in Patients with Polycystic Ovary Syndrome: A Systematic Review and Meta-analysis
Ahmed Abu‐Zaid, Abdulrahim Gari, Hussein Sabban, Majed Saeed Alshahrani, Khalid Khadawardi, Ehab Badghish et al.
Reproductive Sciences
2023 📈 11 citations DOI ↗
Association between endometriosis and obstetric complications: Insight from the National Inpatient Sample
Ahmed Abu‐Zaid, Abdulrahim Gari, Maha Tulbah, Majed Saeed Alshahrani, Khalid Khadawardi, Albagir Mahdi Ahmed et al.
European Journal of Obstetrics & Gynecology and Reproductive Biology
2023 📈 9 citations DOI ↗
Tranexamic acid versus misoprostol for management of postpartum hemorrhage: A systematic review and meta-analysis of randomized controlled trials
Ahmed Abu‐Zaid, Saeed Baradwan, Bayan Albouq, Ahmed Ghazi, Khalid Khadawardi, Ibtihal Abdulaziz Bukhari et al.
European Journal of Obstetrics & Gynecology and Reproductive Biology
2023 📈 1 citations DOI ↗
Effect of selenium supplementation on cardiometabolic risk factors in polycystic ovary syndrome (PCOS) patients: A systematic review and meta-analysis of randomized clinical trials
Ahmed Abu‐Zaid, Ibtihal Abdulaziz Bukhari, Abdullah A. Alyousef, Saeed Baradwan, Naif Bin Muaythir, Yasir Almudaymigh et al.
PharmaNutrition
2023 📈 1 citations DOI ↗
Exploring the impact of chronic medical conditions on maternal mental health: A National Inpatient Sample analysis
Ahmed Abu‐Zaid, Abdulrahim Gari, Saud Abdullah Alsharif, Majed Saeed Alshahrani, Khalid Khadawardi, Albagir Mahdi Ahmed et al.
European Journal of Obstetrics & Gynecology and Reproductive Biology
2023 📈 3 citations DOI ↗
Cardiovascular Mortality in Ovarian Cancer Patients: An Analysis of Patient Characteristics Using the SEER Database
Ismail Abdulrahman Al‐Badawi, Osama Alomar, Saud Owaimer Alsehaimi, Mohammed Ziad Jamjoom, Nadia Ahmed Abdulmalik, Ibtihal Abdulaziz Bukhari et al.
Medicina
2023 📈 5 citations DOI ↗ Open Access

<i>Background and Objectives</i>: Cardiovascular disease (CVD) is a major contributor to the high mortality rate among individuals with ovarian cancer. Nevertheless, there is limited understanding regarding the specific patient attributes that might impact the risk of CVD in this group. ...

Cervical Osmotic Dilators versus Dinoprostone for Cervical Ripening during Labor Induction: A Systematic Review and Meta-analysis of 14 Controlled Trials
Abdulrahman Al-Matary, Saud Abdullah Alsharif, Ibtihal Abdulaziz Bukhari, Saeed Baradwan, Majed Saeed Alshahrani, Khalid Khadawardi et al.
American Journal of Perinatology
2023 📈 4 citations DOI ↗

· This is the first analysis of cervical osmotic dilators versus PGE2 for cervical ripening during labor.. · There was no difference between both arms regarding the rates of normal vaginal/cesarean deliveries.. · There was no difference between both arms regarding the rates of neonatal adverse event...

Transvaginal needle versus laparoscopic ovarian drilling in hormonal profile and pregnancy outcomes of polycystic ovary syndrome: A systematic review and meta-analysis
Saeed Baradwan, Mohamed Abuzaid, Hussein Sabban, Majed Saeed Alshahrani, Khalid Khadawardi, Rayan AlSghan et al.
Journal of Gynecology Obstetrics and Human Reproduction
2023 📈 8 citations DOI ↗
Analgesic Efficacy of Intraoperative Superior Hypogastric Plexus (SHP) Block during Abdominal Hysterectomy: A Systematic Review and Meta-Analysis of Controlled Trials
Hany Salem, Ibtihal Abdulaziz Bukhari, Maha Al Baalharith, Nasser AlTahtam, Safa Alabdrabalamir, Mohammed Ziad Jamjoom et al.
Medicina
2023 📈 4 citations DOI ↗ Open Access

<i>Background and Objectives:</i> Abdominal hysterectomy is a major surgery that is often associated with pronounced postsurgical pain. The objective of this research is to conduct a systematic review and meta-analysis of all randomized controlled trials (RCTs) and nonrandomized comparat...

Volatile Constituents in Essential Oil from Leaves of Withania adpressa Coss. Ex Exhibit Potent Antioxidant and Antimicrobial Properties against Clinically-Relevant Pathogens
Mohammed Bourhia, Abdullah A. Alyousef, Ghizlane Doumane, Hamza Saghrouchni, John P. Giesy, Lahcen Ouahmane et al.
Molecules
2023 📈 8 citations DOI ↗ Open Access

<i>Withania adpressa</i> Coss. ex is a plant used in traditional medications. Antioxidant, antibacterial, and antifungal properties of the essential oil from leaves of <i>Withania adpressa</i> Coss ex. (EOW) were investigated. EOW was extracted using a Clevenger apparatus, an...

Increasing Awareness of Hypertensive Patients About Their Blood Pressure Readings During Clinic Visits in a Tertiary Hospital in Riyadh
Basim A Almatouq, Abdullah Alaryni, Abdullah Alghamdi, Qasem A Alhammad, Abdulmalk A Almadhi, Fahad Bin Abbas et al.
Cureus
2023 📈 1 citations DOI ↗ Open Access

Introduction Hypertension (HTN) is one of the most important cardiovascular risk factors. It is associated with significant complications, such as coronary artery disease, stroke, and chronic kidney disease. Awareness among hypertensive patients regarding their blood pressure (BP) is low in the King...

Prevalence and Molecular Characterization of Metallo β-Lactamase Producing Gram-Negative Pathogens Causing Eye Infections
Gunasekaran Rameshkumar, Ranjithkumar Dhandapani, Prajna Lalitha, R. Karthikeyan, Palanivel Velmurugan, Sathiamoorthi Thangavelu et al.
Frontiers in Public Health
2022 📈 5 citations DOI ↗ Open Access

The emerging MβLs mediated resistance among <i>P. aeruginosa</i> is a challenging task for ophthalmologists, especially in patients with endophthalmitis and bacterial keratitis. This local knowledge will aid in advising appropriate antibiotic use and avoiding unnecessary antibiotic presc...

Comparative Metabolic Characterization of Extraintestinal Pathogenic Escherichia coli Blood Isolates from Saudi Arabia
Abdulaziz Alangari, Ahmad Abu Jaffal, Abdulaziz M. Alyousef, Abdullah A. Alyousef
Journal of Tropical Medicine
2022 📈 2 citations DOI ↗ Open Access

ST131 blood isolates were slightly higher in their carbohydrate utilization activity than non-ST131. More importantly, ST131 isolates were significantly capable of metabolizing rhamnose. Future research should focus on the factors that might drive the success of major ExPEC clones such as ST131.

Plasmid Replicon Diversity of Clinical Uropathogenic Escherichia coli Isolates from Riyadh, Saudi Arabia
Abdulaziz Alangari, Ahmad Abu Jaffal, Naif Almutairi, Abdullah A. Alyousef
Journal of Pure and Applied Microbiology
2022 📈 2 citations DOI ↗ Open Access

The aim of this study was to identify and compare the plasmid replicons of clinical uropathogenic Escherichia coli (UPEC) isolates, involving extended spectrum β-lactamase (ESBL)-positive and ESBL-negative, E. coli ST131 and non-ST131 and various ST131 subclones. Plasmid replicon typing on 24 clinic...

Scoping review of Cardiac Troponin Test in the Prehospital Management of Non-ST-Elevation Myocardial Infarction in Qatar
Abdullah A. Alyousef, Padarath Gangaram, Guillaume Alinier
Journal of emergency medicine, trauma & acute care
2022 DOI ↗ Open Access

Background: Acute coronary syndrome (ACS) is one of the most common life-threatening diseases worldwide. Early diagnosis, advanced cardiac life support, and rapid transportation to a cardiac center are essential to reduce mortality and morbidity. ST-segment elevation myocardial infarctions (STEMI) a...

Phytochemical Analysis and Antioxidant, Antibacterial, and Antifungal Effects of Essential Oil of Black Caraway (<i>Nigella sativa</i> L.) Seeds against Drug‐Resistant Clinically Pathogenic Microorganisms
Otmane Zouirech, Abdullah A. Alyousef, Azeddin El Barnossi, Abdelfattah El Moussaoui, Mohammed Bourhia, Ahmad Mohammad Salamatullah et al.
BioMed Research International
2022 📈 56 citations DOI ↗ Open Access

<i>Nigella sativa</i> (NS) is a plant that has long been utilized in traditional medicine as a treatment for certain diseases. The aim of this work was to valorize the essential oil (EO) of this species by phytochemical analysis and antimicrobial and antioxidant evaluation. EO was extrac...

Antifungal Activity and Mechanism of Action of Different Parts of Myrtus communis Growing in Saudi Arabia against Candida Spp.
Abdullah A. Alyousef
Journal of Nanomaterials
2021 📈 27 citations DOI ↗ Open Access

Discovering new antifungal drugs from natural products is a key target for the treatment of infections, such as candidiasis and other Candida-related infections. As current therapeutic drugs for the treatment of infections, such as candidiasis and other Candida-related infections, have adverse effec...

Myrtus communis and its bioactive phytoconstituent, linalool, interferes with Quorum sensing regulated virulence functions and biofilm of uropathogenic bacteria: In vitro and in silico insights
Abdullah A. Alyousef, Fohad Mabood Husain, Mohammed Arshad, Syed Rizwan Ahamad, Mohammad Shavez Khan, Faizan Abul Qais et al.
Journal of King Saud University - Science
2021 📈 24 citations DOI ↗ Open Access

Ever increasing spread of drug resistance among bacterial pathogens have rendered the current antibiotic therapy ineffective. Drug-resistant urinary tract infections caused by Gram negative bacterial pathogens such as Pseudomonas aeruginosa, Escherichia coli, Acinetobacter baumannii, and Serratia ma...

Facile synthesis of Bi2MoO6-Ag2MoO4 nanocomposite for the enhanced visible light photocatalytic removal of methylene blue and its antimicrobial application
S. Balasurya, Arunava Das, Abdullah A. Alyousef, Abdulaziz Alqasim, Naif Almutairi, S. Sudheer Khan
Journal of Molecular Liquids
2021 📈 64 citations DOI ↗
Comparative phenotypic characterization identifies few differences in the metabolic capacity between Escherichia coli ST131 subclones
Abdulaziz Alqasim, Ahmad Abu Jaffal, Naif Almutairi, Abdullah A. Alyousef
Saudi Journal of Biological Sciences
2020 📈 7 citations DOI ↗ Open Access
Sericin-functionalized GNPs potentiate the synergistic effect of levofloxacin and balofloxacin against MDR bacteria
Abu Baker, Asad Syed, Abdullah A. Alyousef, Mohammed Arshad, Abdulaziz Alqasim, Mohammad Khalid et al.
Microbial Pathogenesis
2020 📈 22 citations DOI ↗
Phyto-Mediated Synthesis of Porous Titanium Dioxide Nanoparticles From Withania somnifera Root Extract: Broad-Spectrum Attenuation of Biofilm and Cytotoxic Properties Against HepG2 Cell Lines
Nasser Abdulatif Al‐Shabib, Fohad Mabood Husain, Faizan Abul Qais, Naushad Ahmad, Altaf Khan, Abdullah A. Alyousef et al.
Frontiers in Microbiology
2020 📈 93 citations DOI ↗ Open Access

There is grave necessity to counter the menace of drug-resistant biofilms of pathogens using nanomaterials. Moreover, we need to produce nanoparticles (NPs) using inexpensive clean biological approaches that demonstrate broad-spectrum inhibition of microbial biofilms and cytotoxicity against HepG2 c...

Incidence and antimicrobial profile of extended-spectrum β-lactamase producing gram-negative bacterial isolates: An in-vitro and statistical analysis
Turki M. Dawoud, Asad Syed, Amit Kumar Maurya, Syed Sayeed Ahmad, Quazzafi Rabbani, Abdullah A. Alyousef et al.
Journal of Infection and Public Health
2020 📈 4 citations DOI ↗ Open Access
GCMS fingerprinting, in vitro pharmacological activities, and in vivo anti-inflammatory and hepatoprotective effect of selected edible herbs from Kashmir valley
Suhail Razak, Tayyaba Afsar, Dara Aldisi, Ali Almajwal, Mohammed Arshad, Abdullah A. Alyousef et al.
Journal of King Saud University - Science
2020 📈 17 citations DOI ↗ Open Access

The people of Kashmir customarily practice traditional medicines for curing various ailments. 3 nutritious herbs; Melissa officinalis L (Lamiaceae, MO), Taraxacum officinale L (Compositae, TO), and Urtica dioica L (Urticaceae, UD) were selected based on their ingestion as a folklore remedy for treat...

Chlortetracycline-Functionalized Silver Nanoparticles as a Colorimetric Probe for Aminoglycosides: Ultrasensitive Determination of Kanamycin and Streptomycin
Ganesh Dattatraya Saratale, Rijuta Ganesh Saratale, Gajanan Ghodake, Surendra Shinde, Dae-Young Kim, Abdullah A. Alyousef et al.
Nanomaterials
2020 📈 33 citations DOI ↗ Open Access

Aminoglycosides (AMGs) have been extensively used to treat infectious diseases caused by Gram-negative bacteria in livestock and humans. A selective and sensitive colorimetric probe for the determination of streptomycin and kanamycin was proposed based on chlortetracycline-coated silver nanoparticle...

Food color ‘Azorubine’ interferes with quorum sensing regulated functions and obliterates biofilm formed by food associated bacteria: An in vitro and in silico approach
Nasser Abdulatif Al‐Shabib, Fohad Mabood Husain, Md Tabish Rehman, Abdullah A. Alyousef, Mohammed Arshad, Altaf Khan et al.
Saudi Journal of Biological Sciences
2020 📈 19 citations DOI ↗ Open Access

Quorum sensing (QS) plays a crucial role in different stages of biofilm development, virulence production, and subsequently to the growth of bacteria in food environments. Biofilm mediated spoilage of food is one of the ongoing challenge faced by the food industry worldwide as it incurs substantial ...

Probiotic Bacteria Used in Food: A Novel Class of Antibiofilm Agent
Fohad Mabood Husain, Nasser Abdulatif Al‐Shabib, Abdullah A. Alyousef, Altaf Khan, Mohammed Arshad, Iftekhar Hassan et al.
2020 📈 3 citations DOI ↗
Bio-inspired facile fabrication of silver nanoparticles from <i>in vitro</i> grown shoots of <i>Tamarix nilotica</i>: explication of its potential in impeding growth and biofilms of <i>Listeria monocytogenes</i> and assessment of wound healing ability
Nasser Abdulatif Al‐Shabib, Fohad Mabood Husain, Mohammad Nadeem, Mohd Shahnawaz Khan, Fahad Al‐Qurainy, Abdullah A. Alyousef et al.
RSC Advances
2020 📈 26 citations DOI ↗ Open Access

Novel, safe, and effective antilisterial agents are required in order to prevent <italic>Listeria monocytogenes</italic> infections and maintain food safety.

In-vitro antibacterial, antioxidant potentials and cytotoxic activity of the leaves of Tridax procumbens
Asad Syed, N. Benit, Abdullah A. Alyousef, Abdulaziz Alqasim, Mohammed Arshad
Saudi Journal of Biological Sciences
2019 📈 37 citations DOI ↗ Open Access
Isolation, phenotypic and genotypic characterization of Escherichia coli from the bloodstream samples in Riyadh, Saudi Arabia
Abdulaziz Alqasim, Ahmad Abu Jaffal, Naif Almutairi, Mohammed Arshad, Abdullah A. Alyousef
Journal of King Saud University - Science
2019 📈 11 citations DOI ↗ Open Access

Bacteraemia is an international threat caused by extra-intestinal pathogenic Escherichia coli (ExPEC). Recently, the antimicrobial resistance of ExPEC has increased substantially, and this is attributed to the dissemination of E. coli ST131 clone. The present study explored the antimicrobial suscept...

Green Synthesized Silver Nanoparticles of Myrtus communis L (AgMC) Extract Inhibits Cancer Hallmarks via Targeting Aldose Reductase (AR) and Associated Signaling Network
Abdulwahab Abuderman, Rabbani Syed, Abdullah A. Alyousef, Mohammed S. Alqahtani, Mohammad Shamsul Ola, Abdul Malik
Processes
2019 📈 18 citations DOI ↗ Open Access

In this current study, we demonstrated the green synthesis and characterization of silver nanoparticles using Myrtus communis L. plant extract (Ag-MC) and its evaluation of anticancer and antimicrobial activities. The green synthesis of (Ag-MC), was assessed by numerous characterization techniques s...

Prevalence and molecular characteristics of sequence type 131 clone among clinical uropathogenic Escherichia coli isolates in Riyadh, Saudi Arabia
Abdulaziz Alqasim, Ahmad Abu Jaffal, Abdullah A. Alyousef
Saudi Journal of Biological Sciences
2019 📈 27 citations DOI ↗ Open Access
Antimicrobial photodynamic therapy on <i>Staphylococcus aureus</i> and <i>Escherichia coli</i> using malachite green encapsulated mesoporous silica nanoparticles: an <i>in vitro</i> study
Paramanantham Parasuraman, Siddhardha Busi, Sruthil Lal SB, Alok Sharan, Abdullah A. Alyousef, Mohammed Saeed Al Dosary et al.
PeerJ
2019 📈 41 citations DOI ↗ Open Access

MG-MSN was effective against both the tested bacteria. <i>S. aureus</i> was more phototoxic to MG-MSN compared to <i>E. coli</i>. The antibiofilm efficacy of MG-MSN on <i>E. coli</i> and <i>S. aureus</i> was also studied. Biofilm inhibition was 65.68 ±...

Gene expression patterns of COX-1, COX-2 and iNOS in H. Pylori infected histopathological conditions
Santosh K. Tiwari, Asma Sultana Shaik, Abjal Pasha Shaik, Abdullah A. Alyousef, Avinash Bardia, Md. Aejaz Habeeb et al.
Microbial Pathogenesis
2019 📈 23 citations DOI ↗
Purification and kinetics of the PHB depolymerase of Microbacterium paraoxydans RZS6 isolated from a dumping yard
R. Z. Sayyed, S. J. Wani, Abdullah A. Alyousef, Abdulaziz Alqasim, Asad Syed, Hesham Ali El Enshasy
PLoS ONE
2019 📈 29 citations DOI ↗ Open Access

Poly-β-hydroxybutyrate (PHB) depolymerase is known to decompose PHB, biodegradable polymers and therefore has great commercial significance in the bioplastic sector. However, reports on PHB depolymerases from isolates obtained from plastic-contaminated sites that reflect the potential of the source ...

Biosynthesis of TiO2 nanoparticles and their superior antibacterial effect against human nosocomial bacterial pathogens
S. Priyadarshini, Azizah Mainal, Faridah Sonsudin, Rosiyah Yahya, Abdullah A. Alyousef, Mohammed Arshad
Research on Chemical Intermediates
2019 📈 36 citations DOI ↗
&lt;p&gt;Malachite green-conjugated multi-walled carbon nanotubes potentiate antimicrobial photodynamic inactivation of planktonic cells and biofilms of &lt;em&gt;Pseudomonas aeruginosa&lt;/em&gt; and &lt;em&gt;Staphylococcus aureus&lt;/em&gt;&lt;/p&gt;
V. T. Anju, Paramanantham Parasuraman, Siddhardha Busi, Sruthil Lal S. B, Alok Sharan, Abdullah A. Alyousef et al.
International Journal of Nanomedicine
2019 📈 31 citations DOI ↗ Open Access

<b>Purpose:</b> Infections associated with medical devices that are caused by biofilms remain a considerable challenge for health care systems owing to their multidrug resistance patterns. Biofilms of <i>Pseudomonas aeruginosa</i> and <i>Staphylococcus aureus</i> ...

Vitamin D Receptor FokI, ApaI, and TaqI Polymorphisms in Lead Exposed Subjects From Saudi Arabia
Abjal Pasha Shaik, Abbas H. Alsaeed, Muhammad Faiyaz‐Ul‐Haque, Mikqdad A. Alsaeed, Abdullah A. Alyousef, Vamsee K. Bammidi et al.
Frontiers in Genetics
2019 📈 5 citations DOI ↗ Open Access

Vitamin D receptor (VDR) gene polymorphisms were reported to influence blood lead levels (BLL) and the response of subjects to the symptoms of lead toxicity. However, no studies have been conducted in the Saudi Arabian population which has unique ethnicity and socio-demographic features. This study ...

Production, purification, and kinetics of the poly-β-hydroxybutyrate depolymerase from <i>Microbacterium paraoxydans</i> RZS6: A novel biopolymer-degrading organism isolated from a dumping yard
R. Z. Sayyed, S. J. Wani, Abdullah A. Alyousef, Abdulaziz Alqasim, Asad Syed
2019 DOI ↗ Open Access

Abstract Poly-β-hydroxybutyrate (PHB) depolymerase can decompose biodegradable polymers and therefore has great commercial significance in the bioplastic sector. However, few reports have described PHB depolymerases based on isolates obtained from plastic-contaminated sites that reflect the potentia...

Nanomaterials as a Novel Class of Anti-infective Agents that Attenuate Bacterial Quorum Sensing
Fohad Mabood Husain, Mohammad Shavez Khan, Iqbal Ahmad, Rais Ahmad Khan, Nasser Abdulatif Al‐Shabib, Mohammad Oves et al.
2019 📈 3 citations DOI ↗
Nanoparticles as New Emerging Antibacterials: Potentials and Limitations
Fohad Mabood Husain, Mohammad Shavez Khan, Saba Siddiqui, Altaf Khan, Mohammed Arshad, Abdullah A. Alyousef et al.
2019 📈 7 citations DOI ↗
Biogenic silver nanoparticles by <i>Myrtus communis</i> plant extract: biosynthesis, characterization and antibacterial activity
Abdullah A. Alyousef, Mohammed Arshad, Raid Alakeel, Abdulaziz Alqasim
Biotechnology & Biotechnological Equipment
2019 📈 31 citations DOI ↗ Open Access

Green fabrication of nanoparticles has been established by means of a simple, economical and environmentally pleasant process. The present investigation describes the use of Myrtus communis plant leaves extract for the biosynthesis of the silver nanoparticle. The surface plasmon resonance peak at 43...

Screening &amp; analysis of anionic peptides from Foeniculum vulgare Mill by mass spectroscopy
Abdullah A. Alyousef, Ayesha Mateen, Raid Alakeel, Abdulaziz Alqasim, Yazeed A. Al‐Sheikh, Mohammed S. Alqahtani et al.
Saudi Journal of Biological Sciences
2018 📈 2 citations DOI ↗ Open Access

Fennel (<i>Foeniculum vulgare</i> Mill.) member from the family <i>Umbelliferae</i> (<i>Apiaceae</i>) and has been used in Saudi Arabia as an medicine as of the from the tradition. Our previous work with seed extracts of this plant generated DEAE-ion exchange puri...

Associations between iron deficiency anemia and clinical features among pregnant women: a prospective cohort study [Retraction]
Saeed Baradwan, Abdullah A. Alyousef, Abdulrhman Turkistani
Journal of Blood Medicine
2018 📈 3 citations DOI ↗ Open Access

[This retracts the article on p. 163 in vol. 9, PMID: 30323700.].

Low Temperature Synthesis of Superparamagnetic Iron Oxide (Fe3O4) Nanoparticles and Their ROS Mediated Inhibition of Biofilm Formed by Food-Associated Bacteria
Nasser Abdulatif Al‐Shabib, Fohad Mabood Husain, Faheem Ahmed, Rais Ahmad Khan, Mohammad Shavez Khan, Firoz Ahmad Ansari et al.
Frontiers in Microbiology
2018 📈 71 citations DOI ↗ Open Access

In the present study, a facile environmentally friendly approach was described to prepare monodisperse iron oxide (Fe<sub>3</sub>O<sub>4</sub>) nanoparticles (IONPs) by low temperature solution route. The synthesized nanoparticles were characterized using x-ray diffraction sp...

Urinary phthalate metabolites among children in Saudi Arabia: Occurrences, risks, and their association with oxidative stress markers
Inae Lee, Raid Alakeel, Sungmin Kim, Yazeed A. Al‐Sheikh, Hazem Al‐Mandeel, Abdullah A. Alyousef et al.
The Science of The Total Environment
2018 📈 55 citations DOI ↗
Associations between iron deficiency anemia and clinical features among pregnant women: a prospective cohort study
Saeed Baradwan, Abdullah A. Alyousef, Abdulrhman Turkistani
Journal of Blood Medicine
2018 📈 24 citations DOI ↗ Open Access

Anemia in general and microcytic hypochromic anemia in particular were significantly associated with higher gravidity and parity. The significant outcome associated with IDA during pregnancy was a lower rate of spontaneous vaginal delivery and antenatal fetal distress. Compliance with iron supplemen...

Prevalence of Multidrug Resistance and Extended-Spectrum <i>β</i>-Lactamase Carriage of Clinical Uropathogenic <i>Escherichia coli</i> Isolates in Riyadh, Saudi Arabia
Abdulaziz Alqasim, Ahmad Abu Jaffal, Abdullah A. Alyousef
International Journal of Microbiology
2018 📈 89 citations DOI ↗ Open Access

The prevalence of extended-spectrum <i>β</i>-lactamase-producing <i>Escherichia coli</i> (ESBL-producing <i>E. coli</i>) has recently increased worldwide. This study aims at determining the antimicrobial susceptibility patterns of a collection of clinical <i>...

Purification and MIC analysis of antimicrobial proteins from Cucumis sativus L. seeds
Raid Al Akeel, Ayesha Mateen, Khalid Khalaf Alharbi, Abdullah A. Alyousef, Hazem Al‐Mandeel, Rabbani Syed
BMC Complementary and Alternative Medicine
2018 📈 16 citations DOI ↗ Open Access
Isolation and characterization of lectin with antibacterial, antibiofilm and antiproliferative activities from <i>Acinetobacter baumannii</i> of environmental origin
Abdullah A. Alyousef, Abdullah Alqasim, Mustafa Sawsan Aloahd
Journal of Applied Microbiology
2018 📈 8 citations DOI ↗

AB119 lectin from A.baumannii species was verified for its capability to control microbial growth and its biofilm formation. Results showed lectin was able to reduce growth as well biofilm formation of both Gram-positive and Gram-negative bacterial species. Lectin has a promising application as an a...

Clostridium difficile: Epidemiology, Pathogenicity, and an Update on the Limitations of and Challenges in Its Diagnosis
Abdullah A. Alyousef
Journal of AOAC International
2017 📈 24 citations DOI ↗ Open Access

Abstract The bacterium originally named Bacillus difficilis was later renamed Clostridium difficile because of the difficulty associated with its isolation in the laboratory. C. difficile causes human-associated diarrhea, which is now known as C. difficile infection (CDI), a major cause of nosocomia...

The effect of immune modulation of Streptococcus constellatus SC10 strain upon Acinetobactor baumannii infection
Abdullah A. Alyousef, Israa M.S. Al-Kadmy
Microbial Pathogenesis
2017 📈 7 citations DOI ↗
Detection of prevalent mechanism of extended spectrum β-lactamases, metallo β-lactamases, and AmpC β lactamases-producing Klebsiella pneumoniae in the tertiary care hospital
Abdullah A. Alyousef, Saba Saadoon Khazaal, Alaa Naseer Mohammed Ali, Nadheema Hammood Hussein, Sawsan Mustafa Aloahd Hussein
Reviews in Medical Microbiology
2017 📈 1 citations DOI ↗

Increasing trends of resistance to antibiotics because of production of β-lactamases, such as carbapenamase-mediated resistance and extended spectrum β-lactamases (ESBL), are the most widespread mechanisms documented in Klebsiella pneumoniae. The objective of this study was to understand the prevale...

Chemically modified tetracyclines an emerging host modulator in chronic periodontitis patients: A randomized, double-blind, placebo-controlled, clinical trial
Abdullah A. Alyousef, Darshan Devang Divakar, Muzaheed Muzaheed
Microbial Pathogenesis
2017 📈 10 citations DOI ↗
Screening, Purification and Characterization of Anionic Antimicrobial Proteins from Foeniculum Vulgare
Raid Al Akeel, Ayesha Mateen, Rabbani Syed, Abdullah A. Alyousef, Mohammed Rafi Shaik
Molecules
2017 📈 15 citations DOI ↗ Open Access

<i>Foeniculum vulgare</i> Mill., commonly called fennel, is a medicinal plant belonging to the Umbelliferae (Apiaceae) family, and is used in traditional medicine. Antibacterial peptides were isolated using sodium phosphate citrate buffer and, for extraction, cetyltrimethyl ammonium brom...

A prospective evaluation of synergistic effect of sulbactam and tazobactam combination with meropenem or colistin against multidrug resistant Acinetobacter baumannii
Mohammed Ali M. Marie, Lakshmana Gowda Krishnappa, Alhusain J. Alzahrani, Murad A. Mubaraki, Abdullah A. Alyousef
Biomolecules and Biomedicine
2015 📈 31 citations DOI ↗ Open Access

The present study evaluates the synergistic effect of sulbactam/tazobactam in combination with meropenem or colistin against multidrug resistant (MDR) Acinetobacter baumannii isolated from hospitalized patients from a tertiary care hospital in Saudi Arabia. During the study period, 54 multidrug and ...

Identification and characterisation of lysin enzymes as potential therapeutics for the treatment of Clostridium difficile
Abdullah A. Alyousef
ORCA Online Research @Cardiff (Cardiff University)
2013 📈 3 citations Open Access

Clostridium difficile is the most common cause of hospital acquired infections. While the current treatments of choice, antibiotics, are generally effective in promoting recovery ,the increased incidence of C. difficile infections and treatment failure associated with antibiotic resistance combined ...

Contribution of Spores to the Ability of Clostridium difficile To Adhere to Surfaces
Lovleen Tina Joshi, Daniel Phillips, Catrin F. Williams, Abdullah A. Alyousef, Les Baillie
Applied and Environmental Microbiology
2012 📈 64 citations DOI ↗ Open Access

Clostridium difficile is the commonest cause of hospital-acquired infection in the United Kingdom. We characterized the abilities of 21 clinical isolates to form spores; to adhere to inorganic and organic surfaces, including stainless steel and human adenocarcinoma cells; and to germinate. The compo...

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