Publications by authors named "A Mannan"

Introduction: This study aims to isolate and characterize potential cytotoxic compounds from the roots of Bauhinia variegata Linn. (Caesalpiniaceae) and evaluate their activity against human cancer cell lines. Five compounds, namely β-sitosterol (1), piperine (2), piperolein B (3), retrofractamide A (4), and dehydropipernonaline (5), were isolated from B.

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Bacteria can be engineered to manufacture chemicals, but it is unclear how to optimally engineer a single cell to maximise production performance from batch cultures. Moreover, the performance of engineered production pathways is affected by competition for the host's native resources. Here, using a 'host-aware' computational framework which captures competition for both metabolic and gene expression resources, we uncover design principles for engineering the expression of host and production enzymes at the cell level which maximise volumetric productivity and yield from batch cultures.

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Article Synopsis
  • Arsenic contamination is a significant public health issue globally, and bacteria like Achromobacter aegrifaciens can help mitigate this by converting toxic arsenite (AsIII) into less harmful arsenate (AsV).
  • Researchers analyzed two A. aegrifaciens strains from arsenic-laden water and soil in Bangladesh using whole genome sequencing and found that both strains exhibit arsenic oxidation capabilities and share similar gene clusters for arsenic detoxification and heavy metal resistance.
  • The genomic analyses revealed that these strains, while distinct from other strains globally, show close evolutionary relationships with each other, indicating their potential in bioremediation efforts in arsenic-contaminated areas.
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  • Multidrug-resistant bacteria, especially ESBL-producing strains like Klebsiella pneumoniae, are a major global health threat, with this study focusing on Kp04, a clinical isolate from Bangladesh.
  • The investigation revealed high antibiotic resistance, with five isolated K. pneumoniae strains being resistant to 14 out of 21 tested antibiotics while only being sensitive to three specific ones.
  • Whole-genome sequencing of Kp04 identified 75 genes associated with ESBL, virulence, and multiple drug resistance, highlighting similarities in virulence and resistance among isolates from Dhaka and Chattogram, indicating possible transmission of these strains in the region.
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Diabetic Cardiomyopathy (DCM) is a notable consequence of diabetes mellitus, distinguished by cardiac dysfunction that occurs separately from coronary artery disease or hypertension. A recent study has revealed an intricate interaction of pathogenic processes that contribute to DCM. Important aspects involve the dysregulation of glucose metabolism, resulting in heightened oxidative stress and impaired mitochondrial function.

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