Publications by authors named "Muhammad A Sheikh"

Many patients discharged after an acute pulmonary embolism (PE) admission have inconsistent outpatient follow-up and insufficient workup for chronic complications of PE. A structured outpatient care program is lacking for the different phenotypes of chronic PE, such as chronic thromboembolic disease, chronic thromboembolic pulmonary hypertension, and post-PE syndrome. A dedicated PE follow-up clinic extends the organized, systematic care provided to patients with PE via the PERT (Pulmonary Embolism Response Team) model in the outpatient setting.

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Objectives: To review the comprehensive experience of surgical and oncological management of paediatric hepatoblastoma with 5-year survival outcome.

Methods: The retrospective study was conducted at the Department of Surgical Oncology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan, and comprised data from 2011 to 2020 of primary hepatoblastoma patients aged up to 18 years. Demographic details, size and site of the primary hepatic mass, tumour markers, radiological findings, PRE-Treatment Extent of tumour staging, treatment provided, histopathological and surgical details, and outcomes were assessed.

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Background: The EVEREST trials established the MitraClip as a viable alternative to surgery in treating functional mitral valve regurgitation (FMVR). The MitraClip G4 offers a less invasive way of managing severe FMVR. We sought to compare in-patient mortality and cardiovascular complications in patients with heart failure with reduced ejection fraction (HFrEF) who developed severe FMVR requiring treatment with MitraClip G4 versus annuloplasty.

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Neurodevelopmental disorders have complex origins that manifest early during embryonic growth and are associated with intricate gene regulation dynamics. A perturbed metabolic environment such as hyperglycemia or dyslipidemia, particularly due to maternal obesity, poses a threat to the optimal development of the embryonic central nervous system. Accumulating evidence suggests that these metabolic irregularities during pregnancy may alter neurogenesis pathways, thereby predisposing the developing fetus to neurodevelopmental disorders.

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Proliferating trichilemmal tumor (PTT) is a rare, benign adnexal tumor of hair follicles that commonly mimics malignancy. Excellent outcomes can be achieved with early surgical excision. Delayed presentations-as in this giant shoulder PTT-are made possible, in part, by patient education and healthcare accessibility in low-resource settings.

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The CRISPR-Cas9 system for genome editing has revolutionized gene function studies in mammalian cells, including stem cells. However, the practical application of this technique, particularly in pluripotent stem cells, presents certain challenges, such as being time- and labor-intensive and having low editing efficiency. Here, we describe the generation of a CRISPR-mediated gene knockout in a human embryonic stem cell (hESC) line stably expressing sgRNAs for the L2HGDH gene, using a highly efficient and stable lentiviral-mediated gene delivery system.

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Vibrio Cholera, a gram negative bacterium, is notoriously known to cause diarrheal epidemics. The serotypes O1 and O139 are mainly responsible for the diarrheal outbreaks due to the enterotoxin they produce. This enterotoxin however seems to be protective against bacteremia and hence bacteremia is rarely encountered.

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Every year, millions of people around the world are disabled by stroke, it is well recognized that complications aftera stroke extend hospital stays and pressure ulcers, a stroke consequence, which can be prevented by educating the caregiver. The primary focus of this research is not only to investigate the prevalence of pressure ulcers (PU) among stroke patients, but this study also introduced a variety of factors which influence the formation of PU, such as restricted mobility, gender, duration of stroke, hypertension, diabetes, hygiene, type of mattress, malnutrition, awareness, etc. In addition, this research provides a comparative and statistical analysis, a cause of the catastrophic disabilities influenced by a variety of factors.

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Automatic Text Summarization (ATS) is gaining popularity as there is a growing demand for a system capable of processing extensive textual content and delivering a concise, yet meaningful, relevant, and useful summary. Manual summarization is both expensive and time-consuming, making it impractical for humans to handle vast amounts of data. Consequently, the need for ATS systems has become evident.

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Salmonella enterica serotype Typhi (S Typhi) associated urinary tract infections are exceedingly rare, accounting for less than 1% of cases. Such infections have known to occur in immune-compromised or individuals with urogenital structural abnormalities. With the emergence of extensively drug resistant S Typhi strains in Pakistan, the management of its various unique presentations poses therapeutic challenges.

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Background: Epipericardial fat necrosis (EFN) is a rare and self-limiting cause of acute chest pain. We describe a case of EFN in a patient with a recent coronavirus disease (COVID-19).

Case Presentation: A 55-year-old male presented with a sudden onset of left-sided pleuritic chest pain for the past two days.

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Introduction: Renal artery embolization has been used in a palliative fashion for symptomatic relief of hematuria or flank pain in unresectable renal cell carcinoma in adults. There is limited data on the use of embolization for actively bleeding and unresectable tumors in the oncological pediatric population.

Case Description: A previously healthy 5-year-old boy with no significant past medical or surgical history presented to the clinic with gradually worsening abdominal distension associated with occasional abdominal pain, gross hematuria, and lethargy for four months.

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Introduction: Wilms tumor is the most common renal malignancy in children. The occurrence of Wilms tumor with various congenital genitourinary anomalies has been reported, particularly in horseshoe kidneys, hypospadias, disorder of sexual development, and double collecting system. However, Wilms tumor with crossed renal ectopia is a rare finding.

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Introduction: Testicular tumours in childhood have diverse characteristics for different age ranges. This study aimed to describe the pattern, presentation and outcomes of primary testicular tumours in a paediatric population.

Methods: A retrospective study was conducted from January 2010 to December 2020 on children (≤18 years) with a diagnosis of primary testicular tumour.

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Metabolic reprogramming has emerged as one of the key hallmarks of cancer cells. Various metabolic pathways are dysregulated in cancers, including the hexosamine biosynthesis pathway. Protein O-GlcNAcylation is catalyzed by the enzyme O-GlcNAc transferase (OGT), an effector of hexosamine biosynthesis pathway that is found to be upregulated in most cancers.

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Many patients discharged after an acute pulmonary embolism (PE) admission have inconsistent outpatient follow-up and insufficient workup for chronic complications of PE. A structured outpatient care program is lacking for the different phenotypes of chronic PE, such as chronic thromboembolic disease, chronic thromboembolic pulmonary hypertension, and post-PE syndrome. A dedicated PE follow-up clinic extends the organized, systematic care provided to patients with PE via the PERT (Pulmonary Embolism Response Team) model in the outpatient setting.

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Article Synopsis
  • * Data from nearly 35,000 residents revealed a consistent interest in pathology, particularly in anatomic/clinical pathology, where female representation is notable.
  • * Despite some progress in enrollment, the study concludes that significant disparities in gender and ethnicity still impact leadership roles and academic productivity in pathology.
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Article Synopsis
  • SGLT2 inhibitors are now considered standard treatment for heart failure, and this study evaluates their safety in patients at high risk for cardiovascular diseases.
  • A review of ten clinical trials involving over 71,000 participants found that those taking SGLT2 inhibitors had fewer acute kidney injuries (AKI) and serious side effects compared to those on a placebo.
  • However, while they lower the risk of AKI, SGLT2 inhibitors are linked to a higher likelihood of developing diabetic ketoacidosis (DKA) and volume depletion, indicating the need for more research on their safety.
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Background: Balloon pulmonary angioplasty (BPA) was introduced as a treatment modality for patients with inoperable, medically refractory chronic thromboembolic pulmonary hypertension decades ago; however, reports of high rates of pulmonary vascular injury have led to considerable refinement in procedural technique.

Objectives: The authors sought to better understand the evolution of BPA procedure-related complications over time.

Methods: The authors conducted a systematic review of original articles published by pulmonary hypertension centers globally and performed a pooled cohort analysis of procedure-related outcomes with BPA.

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The presence of foreign bodies in a chronic wound is a well-known phenomenon. The common locations are soft tissues of the wrist and neck, gastro-intestinal foreign objects, foreign objects in the ear and in the Uro-genital tract. aero digestive tract and chest.

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Article Synopsis
  • The study explores the creation of synthetic regulatory DNA to better control gene expression for biotech and medical applications, which usually involve tedious screening of random DNA libraries.
  • Researchers developed a deep learning model called ExpressionGAN, using generative adversarial networks (GAN) to learn from genomic data, allowing for the design of regulatory DNA that targets specific mRNA levels throughout the entire gene structure.
  • Results show that 57% of the synthetic DNA sequences achieved higher expression levels than natural counterparts, highlighting the potential of this approach to enhance our understanding and manipulation of gene regulation across different organisms and conditions.
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Pressure ulcer (PU) is a localized injury to the skin or underlying tissues usually over a bony prominence, which results due to pressure or pressure in combination with shear. It is an expensive health care problem that have deterring impact on the length of hospitalization and cause extra nursing care time. Moreover, PUs negatively impacts patients' health related quality of life.

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