Publications by authors named "Atif Ahmed"

Introduction: Spontaneous rupture of the pathological malarial spleen (SRPMS) is a rare condition with a mortality rate among travelers of approximately 38 %, whereas it was around 10 % for local citizens. The mortality rate for overwhelming post-splenectomy sepsis was reported to be about 50 %.

Methods: A retrospective study was conducted from febraury2022 to July 2022.

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Objective This study aims to utilize the TriNetX database, a comprehensive global network, to improve our understanding of the frequency, demographic factors, and related comorbidities of surgical patients who develop venous thromboembolism (VTEs) events. Methods The global collaborative network in TriNetX was queried for all cases from January 1, 2017, through December 31, 2023. International Classification for Disease (ICD) diagnosis codes were used to define patient cohorts with deep vein thrombosis (DVT) of the upper or lower extremity or pulmonary embolism (PE).

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Background: The incidence of femur fractures has increased in recent years, along with the rate of surgery and subsequent nonunion following these fractures. Nonunion is a significant concern due to the burden it places on both patients and the healthcare system. This study aims to investigate the demographic factors associated with femoral shaft fracture nonunion by comparing two surgical management approaches: open reduction internal fixation (ORIF) with plating versus closed reduction and fixation using intramedullary nailing (IMN).

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Hi-C sequencing is a DNA-based next-generation sequencing method that preserves the 3D genome conformation and has shown promise in detecting genomic rearrangements in translational research studies. To evaluate Hi-C as a potential clinical diagnostic platform, analytical concordance with routine laboratory testing was assessed using primary pediatric leukemia and sarcoma specimens. Archived viable and non-viable frozen leukemic cells and formalin-fixed paraffin-embedded (FFPE) tumor specimens were analyzed.

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Article Synopsis
  • Chronic inflammation in gastrointestinal tissues leads to disorders like Crohn's disease and ulcerative colitis, causing significant symptoms and tissue damage.
  • The study analyzed blood samples from patients with various gastrointestinal conditions to explore gene expression changes, using advanced techniques like single-cell RNA-sequencing.
  • Researchers found 730 genes with altered expression patterns, indicating both shared and unique inflammatory responses among the different disorders, which may aid in diagnosis and understanding of these conditions.
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Interleukin-2 has emerged as a potent protein-based drug to treat various cancers, AIDS, and autoimmune diseases. Despite its immense requirement, the production procedures are inefficient to meet the demand. Therefore, efficient production procedures must be adopted to improve protein yield and decrease procedural loss.

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Unlabelled: HiC sequencing is a DNA-based next-generation sequencing method that preserves the 3D conformation of the genome and has shown promise in detecting genomic rearrangements in translational research studies. To evaluate HiC as a potential clinical diagnostic platform, analytical concordance with routine laboratory testing was assessed using primary pediatric leukemia and sarcoma specimens previously positive for clinically significant genomic rearrangements. Archived specimen types tested included viable and nonviable frozen leukemic cells, as well as formalin-fixed paraffin-embedded (FFPE) tumor tissues.

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Objective: Genome-wide association studies have demonstrated that single nucleotide polymorphisms (SNPs) are important risk factors for the development of prostate cancer (PCa). Preliminary studies have suggested that the incidence of PCa in Saudi males is low but is probably familial or genetically related.

Methods: To identify any possible association of SNP with PCa development in Saudi patients, we investigated a group of SNPs in Saudi PCa patients (=85) and compared the outcomes to healthy normal controls (=115) and nodular hyperplasia patients (=120).

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Objectives: Polypyrimidine tract binding protein is a 57-Kda protein located in the perinucleolar compartment where it binds RNA and regulates several biological functions through the regulation of RNA splicing. Numerous research articles have been published that address the cellular network and functions of PTB and its isoforms in various disease states.

Methodology: Through an extensive PubMed search, we attempt to summarize the relevant research into this biomolecule.

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Wolfram syndrome (WS) is a rare neurodegenerative and genetic disorder, also known by the synonym DIDMOAD, which stands for diabetes insipidus (DI), childhood-onset diabetes mellitus (DM), optic atrophy (OA), and deafness (D). We present a case of a 25-year-old diabetic patient, using insulin for 15 years, who had increasing polyuria and polydipsia, along with progressive hearing and vision loss. Laboratory tests revealed elevated hemoglobin A1c (HbA1c) and blood sugar levels.

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COVID-19 is a novel virus which causes a variety of clinical manifestations in the body, some of which are yet to be discovered. The main aim of our study is to highlight the neurological manifestations of COVID-19 as it is still new to the medical world, and to emphasize the fact that the physicians have to be wary of the possibility that patients affected by COVID-19 can present with encephalitis. Only a few studies are available so far regarding the neurological manifestations of this novel virus which highlights the need for this study.

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The perinucleolar compartment (PNC) is a small nuclear body that plays important role in tumorigenesis. PNC prevalence correlates with poor prognosis and cancer metastasis. Its expression in pediatric Ewing sarcoma (EWS) has not previously been documented.

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Background: Crohn's disease with upper gastrointestinal tract involvement occurs more often in children than adults and has the potential to interfere with oral drug absorption. We aimed to compare disease outcomes in children receiving oral azathioprine for the treatment of Crohn's disease with (DP) and without (NDP) duodenal pathology at diagnosis.

Methods: Duodenal villous length, body mass index (BMI), and laboratory studies were compared in DP vs.

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Introduction: The Orthopaedic In-Training Examination (OITE) is a multiple-choice examination developed by the American Academy of Orthopaedic Surgeons annually since 1963 to assess orthopaedic residents' knowledge. This study's purpose is to analyze the 2017 to 2021 OITE trauma questions to aid orthopaedic residents preparing for the examination.

Methods: The 2017 to 2021 OITEs on American Academy of Orthopaedic Surgeons' ResStudy were retrospectively reviewed to identify trauma questions.

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There are numerous bone tumors in the pediatric population, with imaging playing an essential role in diagnosis and management. Our understanding of certain bone tumors has rapidly evolved over the past decade with advancements in next-generation genetic sequencing techniques. This increased level of understanding has altered the nomenclature, management approach, and prognosis of certain lesions.

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Ectodermal Dysplasia (ED) is a rare genetic condition characterized by the involvement of ectoderm derivatives such as hair, nail, sweat glands, and teeth. It has many variants, but the two most common ones are hypohidrotic/anhidrotic ectodermal dysplasia and hidrotic ectodermal dysplasia. Herein, we present a case of a 20-year-old female with hypohidrotic ectodermal dysplasia who had anodontia, hypohidrosis, and hypotrichosis, and her condition went unrecognized until she was seen for gastroenteritis at a tertiary care center.

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Article Synopsis
  • Patients with Hirschsprung disease often experience obstructive symptoms even after surgery, prompting a study to assess if nerve thickness or ganglion length in resected tissue impacts recovery outcomes.
  • A retrospective analysis of 30 patients who had surgery from 2015-2019 revealed no significant correlation between the measured nerve thickness or ganglion length and post-operative results.
  • Although over half of the patients faced further complications like enterocolitis and continued bowel management, the histological factors studied did not predict these functional outcomes.
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Introduction: The significant increase in the emergence of notable zoonotic viruses in the previous decades has become a serious concern to global public health. Ninety-nine percent of infectious diseases have originated from zoonotic viruses with immense potential for dissemination, infecting the susceptible population completely lacking herd immunity.

Areas Covered: Zoonotic viruses appear in the last two decades as a major health threat either newly evolved or previously present with elevated prevalence in the last few years are selected to explain their current prophylactic measures.

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Introduction  YouTube is the most popular video-based source of information on the Internet. It is accessed by over 1 billion users, which approximates to almost one-third of all Internet users. Orthopaedic video content published on YouTube is not screened and does not go through an editorial process, and most videos do not have information about authorship or appropriate references.

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Manipulation of the microbiome is a rational treatment strategy for inflammatory bowel disease (IBD). Compared to the colon and terminal ileum (TI), understanding of the microbial composition in the duodenum is sparse. This gap in knowledge is especially significant for children with Crohn’s disease (CD) because the prevalence of duodenal CD is higher in children than in adults.

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Encephaloceles are the type of dysraphism in which a skull defect allows for herniation of meninges, with or without the inclusion of neural tissue, and are commonly associated with agenesis of the corpus callosum. Encephaloceles are classified as frontal, occipital, or parietal, with parietal cephaloceles, or vertex cephaloceles (VC), being the least common. Despite this, VCs present as the most common cause of a midline scalp mass, displaying complex venous and neural malformations commonly referred to as the "tip of the iceberg.

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This case report highlights the importance of screening for mutations in EPHB4 and other genes that regulate lymphatic development in infants with the nonimmune hydrops fetalis.

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