Background: Inflammatory bowel disease (IBD) is characterized by chronic inflammation of the gastrointestinal tract. In biological therapy, infliximab became the first anti-tumor necrosis factor (TNF) agent approved for IBD. Despite this success, infliximab is expensive, often ineffective, and associated with adverse events. Prediction of infliximab resistance would improve overall potential outcomes. Therefore, there is a pressing need to widen the scope of investigating the role of genetics in IBD to their association with therapy response. Methods: In the current study, an in-silico analysis of publicly available IBD patient transcriptomics datasets from Gene Expression Omnibus (GEO) are used to identify subsets of differentially expressed genes (DEGs) involved in the pathogenesis of IBD and may serve as potential biomarkers for Infliximab response. Five datasets were found that met the inclusion criteria. The DEGs for datasets were identified using limma R packages through the GEOR2 tool. The probes’ annotated genes in each dataset intersected with DGEs from all other datasets. Enriched gene Ontology Clustering for the identified genes was performed using Metascape to explore the possible connections or interactions between the genes. Results: 174 DEGs between IBD and healthy controls were found from analyzing two datasets (GSE14580 and GSE73661), indicating a possible role in the pathogenesis of IBD. Of the 174 DEGs, five genes (SELE, TREM1, AQP9, FPR2, and HCAR3) were shared between all five datasets. Moreover, these five genes were identified as downregulated in the infliximab responder group compared to the non-responder group. Conclusions: We hypothesize that alteration in the expression of these genes leads to an impaired response to infliximab in IBD patients. Thus, these genes can serve as potential biomarkers for the early detection of compromised infliximab response in IBD patients.
Multiple sclerosis (MS) is a chronic inflammatory condition that causes demyelination of the central nervous system accompanied by a wide range of symptoms. The high prevalence of falls among patients diagnosed with MS within the initial six months highlights the importance of this issue. The objective of this study is to identify factors associated with falls in MS patients in order to increase awareness and reduce the risk of falls. This scoping review used specific Mesh terms to formulate the literature search around falls and MS using Medline, Google Scholar, Scopus, and Embase search engines. English papers published between 2012 and 2022, studies with a clear definition of falls, McDonald’s diagnostic criteria for MS, and those with Expanded Disability Status Scale (EDSS) or Patient Determined Disease Steps (PDDS) scores were included. Critical data from the selected articles were extracted and classified according to the different factors associated with falls in MS patients. Eighteen articles were included in this review. The most important factors associated with falls in MS patients identified were the severity and progression of the disease, mobility and balance problems, bladder dysfunction, fear of falling, fatigue, and cognitive dysfunction. In conclusion, this scoping review yielded the most common factors associated with falls in patients with MS. Study findings can be used to develop future interventions focusing on improving mobility, proprioception, and balance to decrease fall risk and injury amongst MS patients.
Background: Breast cancer is the most common type of cancer among women and is classified into multiple subtypes. Triple-negative breast cancer (TNBC) is the most aggressive subtype, with high mortality rates and limited treatment options such as chemotherapy and radiation. Due to the heterogeneity and complexity of TNBC, there is a lack of reliable biomarkers that can be used to aid in the early diagnosis and prognosis of TNBC in a non-invasive screening method. Aim: This study aims to use in silico methods to identify potential biomarkers for TNBC screening and diagnosis, as well as potential therapeutic markers. Methods: Publicly available transcriptomic data of breast cancer patients published in the NCBI’s GEO database were used in this analysis. Data were analyzed with the online tool GEO2R to identify differentially expressed genes (DEGs). Genes that were differentially expressed in more than 50% of the datasets were selected for further analysis. Metascape, Kaplan-Meier plotter, cBioPortal, and the online tool TIMER were used for functional pathway analysis to identify the biological role and functional pathways associated with these genes. Breast Cancer Gene-Expression Miner v4.7 was used to validify the obtained results in a larger cohort of datasets. Results: A total of 34 genes were identified as differentially expressed in more than half of the datasets. The DEG GATA3 had the highest degree of regulation, and it plays a role in regulating other genes. The estrogen-dependent pathway was the most enriched pathway, involving four crucial genes, including GATA3. The gene FOXA1 was consistently down-regulated in TNBC in all datasets. Conclusions: The shortlisted 34 DEGs will aid clinicians in diagnosing TNBC more accurately as well as developing targeted therapies to improve patient prognosis. In vitro and in vivo studies are further recommended to validate the results of the current study.
Streptococcus species represent a significant global cause of meningitis, leading to brain damage through bacterial virulence factors and the host inflammatory response. Upon entering the central nervous system (CNS), excessive inflammation leads to various neurological and psychological complications. This review explores the pathophysiological mechanisms and associated outcomes of streptococcal meningitis, particularly its short- and long-term neurological sequelae. Neurological symptoms, such as cognitive impairment, motor deficits, and sensory loss, are shown to vary in severity, with children being particularly susceptible to lasting complications. Among survivors, hearing loss, cognitive decline, and cranial nerve palsies emerge as the most frequently reported complications. The findings highlight the need for timely intervention, including neurorehabilitation strategies that focus on optimizing recovery and mitigating long-term disabilities. Future recommendations emphasize improving early diagnosis, expanding vaccine access, and personalizing rehabilitation protocols to enhance patient outcomes. As a novel contribution, this review proposes the term “post-meningitic syndrome” to showcase the broad spectrum of CNS complications that persist following streptococcal meningitis, providing a framework for a future clinical and research focus.
31 August 2023 in American Journal of Case Reports
Objective: Rare disease Background: Sarcoidosis is a benign systemic granulomatous disorder of unknown etiology that affects multiple organs. Patients diagnosed with sarcoidosis usually present with nonspecific symptoms: fatigue, fever, weight loss, and respiratory symptoms such as cough and dyspnea; 50% of the patients are asymptomatic at the time of diagnosis. In 90% of patients, sarcoidosis targets hilar and mediastinal lymph nodes. In rare cases, it presents solely in the breast with no other symptoms. The diagnosis is established based on compatible clinical and radiological findings and supported by histological evidence in 1 or more organs of non-caseating epithelioid cell granulomas in the absence of organisms or particles. Case Report: We herein present a unique case of a 27-year-old woman who presented with pain and swelling in her left breast. On examination, the left breast revealed multiple, firm-hard, and tender masses. Breast ultrasound showed large loculated focally dilated ducts with significant periductal vascularity and inflammation. Fineneedle aspiration (FNA) showed an inflammatory process with granulomatous formation. An ultrasound-guided core biopsy, which was histologically consistent with granulomatous mastitis, and elevated angiotensinconverting enzyme (ACE) levels confirmed a diagnosis of sarcoidosis. The patient was started on IV steroids followed by oral prednisolone and azathioprine. During treatment, the mass size decreased and the pain substantially improved. Conclusions: It is important to consider sarcoidosis in a patient who presents with only pain and swelling in the breast to ensure early diagnosis and initiate treatment, improving the patient's overall prognosis.
1 January 2023 in Journal of Medical Education and Curricular Development
OBJECTIVES: The intent of this study is to compare the academic performance of pre-clinical medical students in online teaching with online proctoring settings versus face-to-face (F2F) teaching with traditional F2F exam proctoring settings. INTRODUCTION: In 2019, the world was faced with a rapidly progressive pandemic of COVID-19. Consequently, numerous institutions have opted to transform from the traditional F2F teaching method to an online modality, ensuring the safety of their students and maintaining the effectiveness of their educational programs. In particular, medical universities faced a unique challenge in creating a new learning system due to their atypical curriculum, which often involves hands-on training and is not easily adaptable to remote teaching. METHODS: The core of this study is based on the scores of first-year undergraduate medical students across three academic years from the Mohamed Bin Rashid University of Medicine and Health Sciences in Dubai (MBRU), United Arab Emirates (UAE). Course and semester grades were collected and compared in both F2F and online teaching modalities as well as exam settings. RESULTS: Our results show that major courses with high-credit courses had no difference in students’ performance regardless of the teaching modality, and in low-credit courses, students generally did better in the online teaching modality. Regarding exam settings, no significant difference was observed in students’ performance. CONCLUSION: With few studies examining the variations between F2F and online teaching, the current study in the UAE is the first study comparing academic performance during the COVID-19 era. Our findings illustrate no significant difference between both online and traditional F2F learning. Therefore, given the considerable potential of alternative teaching modalities, future studies are encouraged to explore the efficacy of online learning and proctoring methods.