Publications by authors named "Ammar Y Abdulfattah"

An intrapulmonary shunt (IPS) occurs when blood bypasses oxygenation in the lungs, flowing directly from the right side of the heart to the left side without undergoing gas exchange. This condition is distinct from an intracardiac shunt, which involves an abnormal connection between the heart chambers or vessels, allowing atypical blood flow. In this report, we present the case of a 21-year-old man with a one-year history of persistent cough, nocturnal chest pain, nasal congestion with shortness of breath, and generalized abdominal pain.

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Obesity-related hypertension (HTN) is a growing global health concern, being a significant contributor to cardiovascular morbidity and mortality. The article reviews the complex pathophysiological mechanisms involved in the link between obesity and HTN, including neurohormonal activation, inflammation, insulin resistance, and endothelial dysfunction. The role of adipokines, specifically leptin and adiponectin, in blood pressure regulation is highlighted, along with the impact of advanced glycation end-products on vascular function.

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Mitral regurgitation (MR) is a common valvular dysfunction often classified as primary or secondary, with the latter typically associated with left ventricular dysfunction or mitral annular dilation. A subset of MR is termed atrial functional MR, related to atrial fibrillation, but the relationship between atrial flutter and MR remains underexplored. This report describes the case of a 71-year-old man with severe MR and atrial flutter who experienced rapid improvement in MR severity following successful atrial flutter ablation and restoration of sinus rhythm.

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Both acute coronary syndrome (ACS) and pulmonary embolism (PE) are life-threatening medical emergencies with overlapping symptoms and laboratory findings. Differentiating these two emergencies and initiating proper treatment are of paramount importance for good outcomes. In this report, we present the case of a 60-year-old male with a history of seizure disorder and hyperlipidemia, who presented to the emergency department (ED) after a syncopal episode preceded by three days of brief episodes of chest pain.

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Heart disease remains a prominent global health concern, with cardiovascular disease (CVD) standing as a leading cause of death worldwide. Preventing heart disease not only decreases the risk of premature death but also mitigates complications like heart attacks, strokes, and arrhythmias, thereby enhancing overall health and quality of life. The economic burden of heart disease treatment highlights the importance of implementing preventive measures, such as lifestyle changes and early interventions, which can alleviate healthcare costs.

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Bicalutamide, a nonsteroidal androgen receptor inhibitor, is an established therapeutic agent for advanced prostate cancer but is associated with severe cardiovascular side effects in rare cases. This case report discusses a rare occurrence of severe systolic congestive heart failure (CHF) in a 68-year-old male undergoing treatment for advanced prostate cancer with bicalutamide, without concurrent use of gonadotropin-releasing hormone antagonists. The patient presented with non-specific abdominal and bilateral foot pain.

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Article Synopsis
  • * Researchers conducted a study using a mouse model to analyze metabolic changes in premalignant and non-muscle invasive bladder cancer (NMIBC), identifying specific metabolic signatures linked to these stages.
  • * The findings suggest that lipid metabolism plays a key role in the development of premalignant lesions and NMIBC, and the study provides potential biomarkers for predicting outcomes in human bladder cancer patients.
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Article Synopsis
  • Platinum resistance in high grade serous ovarian cancer (HGSC) is increasing, with about 75% of patients experiencing recurrence after chemotherapy, contributing to poor five-year survival rates of 39% for stage III and 17% for stage IV.
  • The text examines the interactions between HGSC cells and their tumor microenvironment, emphasizing the roles of the extracellular matrix, ascitic fluid, and various immune cells in developing platinum resistance.
  • It also highlights the clinical significance of platinum-resistant markers and discusses the potential of immunotherapy to help re-sensitize these patients to platinum-based treatments, aiming to improve therapeutic outcomes.
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Ovarian Cancer is the fifth most common cancer in females and remains the most lethal gynecological malignancy as most patients are diagnosed at late stages of the disease. Despite initial responses to therapy, recurrence of chemo-resistant disease is common. The presence of residual cancer stem cells (CSCs) with the unique ability to adapt to several metabolic and signaling pathways represents a major challenge in developing novel targeted therapies.

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Ovarian cancer stands as the most lethal gynecologic malignancy and remains the fifth most common gynecologic cancer. Poor prognosis and low five-year survival rate are attributed to nonspecific symptoms at early phases along with a lack of effective treatment at advanced stages. It is thus paramount, that ovarian carcinoma be viewed through several lenses in order to gain a thorough comprehension of its molecular pathogenesis, epidemiology, histological subtypes, hereditary factors, diagnostic approaches, and methods of treatment.

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Reactive Oxygen Species or "ROS" encompass several molecules derived from oxygen that can oxidize other molecules and subsequently transition rapidly between species. The key roles of ROS in biological processes are cell signaling, biosynthetic processes, and host defense. In cancer cells, increased ROS production and oxidative stress are instigated by carcinogens, oncogenic mutations, and importantly, metabolic reprograming of the rapidly proliferating cancer cells.

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