Publications by authors named "Sarwar Y"

Wastewater is a major source of Antibiotic-Resistant Bacteria (ARB) and a hotspot for the exchange of Antibiotic-Resistant Genes (ARGs). The occurrence of Carbapenem-Resistant Bacteria (CRB) in wastewater samples is a major public health concern. This study aimed to analyze Antibiotic resistance in bacteria from wastewater sources in Pakistan.

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  • * A total of 1267 proteins were identified, with 37 showing differential regulation—28 proteins were up-regulated, primarily involved in metabolic processes, while 9 proteins were down-regulated, linked to carbon metabolism and amino acid biosynthesis.
  • * Most of the differentially expressed proteins were predicted to be antigenic and associated with resistance data, providing insights into the molecular mechanisms underlying the emergence of XDR Typhi.
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Background: Multidrug resistance (MDR) in the family Enterobacteriaceae is a perniciously increasing threat to global health security. The discovery of new antimicrobials having the reversing drug resistance potential may contribute to augment and revive the antibiotic arsenal in hand. This study aimed to explore the anti-Enterobacteriaceae capability of bioactive polyphenols from Punica granatum (P.

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Biofilm-associated foodborne infections in poultry have become increasingly challenging for veterinarians, particularly in developing countries, and warrant thorough investigation. We assessed the biofilm-forming tendency of poultry isolates of , namely Typhimurium ( = 23), Infantis ( = 28), and Heidelberg ( = 18), in nutrient-rich Rappaport-Vassiliadis Soya (RVS) peptone broth and nutrient-deficient diluted Tryptone Soya Broth (TSB). Seven of the tested isolates exhibited moderate biofilm formation in diluted TSB, whereas two showed such formation in RVS.

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  • Antimicrobial resistance is a growing global health issue, prompting research into new materials to fight multi-drug-resistant bacteria.
  • This study introduces surfactin-coated silver nanoparticles, demonstrating their effectiveness as an antibacterial and antibiofilm agent with safe dermal applications.
  • Results indicate that these nanoparticles do not cause significant skin irritation or pathological changes, supporting their potential for treating drug-resistant bacterial infections and improving wound care.
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  • Urinary tract infections (UTIs) are mainly caused by E. coli, with a concerning rise in antimicrobial resistance, recognized by WHO as a major health threat.
  • The study focused on assessing the resistance in local uropathogenic E. coli (UPEC) isolates, revealing high resistance rates to common antibiotics and significant prevalence of ESBL and carbapenemase genes.
  • Findings indicate a worrying trend of extensively drug-resistant UPEC, underscoring the importance of ongoing monitoring of antibiotic resistance and the need for specific treatment strategies.
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Rapid emergence of resistance in serovar Typhi ( Typhi) against most of the available therapeutic options for typhoid has rendered its treatment more difficult. This study sought to determine the current scenario of antimicrobial resistance in local isolates of Faisalabad following several treatment failure reports. Out of 300 clinical specimens collected in 2018, 45 isolates were identified as Typhi.

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Gold nanomaterials (GNMs) have unique optical properties with less antigenicity, and their physicochemical properties have strong relation with an immunological response at bio-interface including antigenicity. An interpretation of this correlation would significantly impact on the clinical and theranostic applications of GNMs. Herein, we studied the effect of GNMs morphology on the cytotoxicity (in-vitro), innate immune responses, hepatotoxicity, and nephrotoxicity (in-vivo studies) using gold nano-cups (GNCs), porous gold nanospheres (PGNSs) and solid gold nano particles (SGNPs) coated with the same ligand to ensure similar surface chemistry.

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Background: Outer membrane proteins (OMPs) of Gram-negative bacteria have been known as potential vaccine targets due to their antigenic properties and host specificity. Here, we focused on the exploration of the immunogenic potential and protective efficacy of total OMPs of Salmonella enterica serovar Typhi due to their multi epitope properties, adjuvanted with nanoporous chitosan particles (NPCPs). The study was designed to extrapolate an effective, low cost prophylactic approach for typhoid fever being getting uncontrolled in Pakistan due to emergence of extensively drug resistant (XDR) strains.

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Background And Objective: Breast cancer is the leading cause of cancer-related mortality amongst women. One of the most common chemotherapeutic agents used to treat breast cancer, anthracyclines, are associated with anthracycline-induced cardiotoxicity (ACIC). The aim of this meta-analysis was to quantify the predictive performance of biomarkers for early ACIC presentation in the breast cancer population.

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Applying phosphate-solubilizing bacteria (PSB) as biofertilizers has enormous potential for sustainable agriculture. Despite this, there is still a lack of information regarding the expression of key genes related to phosphate-solubilization (PS) and efficient formulation strategies. In this study, we investigated rock PS by sp.

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Infections caused by carbapenem-resistant Pseudomonas aeruginosa are life-threatening due to its synergistic resistance mechanisms resulting in the ineffectiveness of the used antimicrobials. This study aimed to characterize P. aeruginosa isolates for antimicrobial susceptibility, biofilm formation virulence genes, and molecular mechanisms responsible for resistance against various antimicrobials.

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To determine the molecular strain typing and drug resistance pattern of serovar Typhi prevalent in Northwest Pakistan. A total of 2,138 blood samples of suspected typhoid patients from Northwest Pakistan were collected followed by identification of Typhi through biochemical, serological, and species-specific gene amplification. These isolates were typed by variable-number tandem repeat (VNTR) profiling and investigated for drug resistance.

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Purpose: We aimed to define a novel autosomal recessive neurodevelopmental disorder, characterize its clinical features, and identify the underlying genetic cause for this condition.

Methods: We performed a detailed clinical characterization of 19 individuals from nine unrelated, consanguineous families with a neurodevelopmental disorder. We used genome/exome sequencing approaches, linkage and cosegregation analyses to identify disease-causing variants, and we performed three-dimensional molecular in silico analysis to predict causality of variants where applicable.

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Different mutations in the Growth/Differentiation Factor 5 gene (GDF5) have been associated with varying types of skeletal dysplasia, including Grebe type chondrodysplasia (GTC), Hunter-Thompson syndrome, Du Pan Syndrome and Brachydactyly type C (BDC). Heterozygous pathogenic mutations exert milder effects, whereas homozygous mutations are known to manifest more severe phenotypes. In this study, we report a GDF5 frameshift mutation (c.

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Aims: The aim of this study was the molecular identification of Salmonella enterica serovar Infantis (S. Infantis) isolated from poultry samples and their antimicrobial resistance and virulence profiling.

Methods And Results: A total of 149 isolates, belonging to genus Salmonella, originally isolated from 340 suspected poultry post mortem specimens reported by us earlier were preliminary identified as Salmonella by biochemical methods and confirmed by polymerase chain reaction targeting genus-specific gene invA.

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Multidrug resistant (MDR) having strong biofilm potential and virulence factors are a serious threat for hospitalized patients having compromised immunity. In this study, 34 isolates of human origin (17 MDR and 17 non-MDR clinical isolates) were checked for biofilm formation potential in enriched and minimal media. The biofilms were detected using crystal violet method and a modified software package of the automated VideoScan screening method.

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The pathogenesis of Salmonella enterica serovar Typhi (S. Typhi), the cause of typhoid fever in humans, is mainly attributed to the acquisition of horizontally acquired DNA elements. Salmonella pathogenicity islands (SPIs) are indubitably the most important form of horizontally acquired DNA with respect to pathogenesis of this bacterium.

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  • Pseudomonas aeruginosa and Staphylococcus aureus are dangerous bacteria that create biofilms, posing a significant health risk due to their antibiotic resistance and prevalence in industrial and clinical settings.
  • Researchers have developed a simple method to create rhamnolipid-coated silver and iron oxide nanoparticles that can effectively combat these biofilms.
  • These nanoparticles work by generating reactive oxygen species and altering their surface properties to prevent bacterial adhesion, offering promising applications for reducing infections and improving medical treatments like wound dressings.
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The zoonotic serovars of Salmonella enterica particularly Typhimurium and Enteritidis pose a continuous global threat to poultry industry and public health. We report the prevalence of Salmonella Typhimurium and Salmonella Enteritidis serovars in local poultry, phenotypic antimicrobial resistance profiling, and molecular detection of antimicrobial resistance and virulence genes. A total of 340 clinical samples were collected and 239 carried Salmonella, which were identified by genus-specific PCR (invA gene) and by matrix-assisted laser desorption/ionization time-of-flight.

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We report the development of effective drug loaded nanocarriers to combat multidrug resistant infection especially in case of osteomyelitis. The hollow mesoporous hydroxyapatite nanoparticles (hmHANPs) and solid/non-hollow hydroxyapatite nanoparticles (sHANPs) were synthesized by core-shell and co-precipitation techniques respectively. High encapsulation of the drug (ciprofloxacin) was observed in hmHANPs as compared to sHANPs, which may be due to the hollow porous structure of hmHANPs.

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We present a case of a foetal sonographic finding of hyper-echogenic kidneys, which led to a strategic series of genetic tests and identified a homozygous mutation (c.424C > T, p. R142*) in the NPHP3 gene.

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  • Paratyphoid fever, caused by the Paratyphi A strain, is increasingly problematic in several Asian countries, including Pakistan, China, and India, largely due to the lack of a licensed vaccine.
  • This study focused on isolating O-specific polysaccharides (OSP) from a Paratyphi A bacteria sample in Pakistan and assessing the antigenicity of its extracted lipopolysaccharide (LPS) for potential vaccine development.
  • Results showed successful identification of the isolates and confirmation of their characteristics, indicating that the purified OSP may be viable for creating low-cost conjugate vaccines to combat paratyphoid fever in endemic regions.
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Staphylococci are one of the foremost causes of urinary tract infections (UTIs) in humans. The emergence of multiple drug resistance (MDR) among Staphylococci poses serious challenges in antimicrobial therapy for UTIs. Most work has been done on S.

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