Publications by authors named "A S Umar"

Article Synopsis
  • Epicardial adipose tissue (EAT) is linked to atrial fibrillation (AF) and atrial fibrosis, but many AF patients show no signs of left atrial (LA) fibrosis. This study compared EAT levels in AF patients without LA fibrosis to matched controls without AF.
  • AF patients without LA fibrosis had significantly higher total and regional volumes of EAT compared to controls, indicating that EAT may play a role in AF development even when LA fibrosis is absent.
  • The study found no differences in EAT volumes between AF patients with and without LA fibrosis and no significant link between EAT volume and AF recurrence after catheter ablation.
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Background: There is a dearth of information regarding mpox risk perception and vaccine acceptance among people living with human immunodeficiency virus (HIV), especially in countries with a dual burden of HIV and mpox, such as Nigeria.

Methods: We used an explanatory mixed methods design and structured questionnaires administered to a clinic-based sample of people living with HIV (n=430), followed by in-depth interviews with a purposive subsample (n=20). Data were analysed using binary logistic regression and the framework approach.

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Introduction: Pericardial effusion (PE) is an abnormal accumulation of fluid in the pericardial space, which, if severe, is associated with high mortality. The causes are diverse, including infective and non-infective. Few studies have looked at the spectrum of severity and causes in Northern Nigeria.

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Background: Safflower thrives in dry environments but faces difficulties with flowering in wet and rainy summers. Flavonoids play a role in flower development and can potentially alleviate these challenges. Furthermore, the FLOWERING LOCUS T (FT) family of phosphatidylethanolamine-binding protein (PEBP) genes play a crucial role in the photoperiodic flowering pathway.

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The present work describes the synthesis of WO3-BiVO4- nanoflakes heterostructure (NFHs) by a single step hydrothermal method. The analysis of crystalline phases and structural behavior deduced the formation of good crystal quality WO3-BiVO4 NFHs. Under microscopic observation, the as-prepared WO3-BiVO4 displayed uniform and conspicuous nanoflakes like structures.

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