Publications by authors named "Rahman M"

Heavy metal contamination in industrial-agricultural regions poses global challenges, yet comprehensive risk assessment models addressing both ecological and human health impacts are scarce. This study introduces a novel multi-compartmental risk assessment framework applied to the Saldha River region of Gazipur, Bangladesh, a rapidly industrialising area experiencing significant environmental stress. Here, we analysed eight heavy metals (Cr, Pb, Cu, Fe, Mn, Zn, Ni, and Cd) in soil, wastewater, and plant samples (spinach, wild rice, and nut grass) via atomic absorption spectrophotometry (AAS).

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The complex fatty acid (FA) composition of the edible portion of American oysters () presents a significant analytical challenge to complete characterization. Here, we employed solvent-mediated covalent adduct chemical ionization to enable comprehensive characterization of its FA composition, with isotope ratio mass spectrometry for initial measurements of FA C signatures. Unusual polymethylene-interrupted (PMI) polyunsaturates were unequivocally identified, with 22:2(7,15) dominating at 5.

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A Bangladesh village rice parboiling plant was used to investigate how to improve essential elements and B-vitamin content of rice, while reducing the toxicants arsenic and cadmium, and potential bacterial pathogens. A 2 -factorial experiment was conducted where husked and de-husked rice was parboiled at different pre-parboiling soaking times, pre-parboiling soaking temperatures, parboiled through either boiling or steaming, and parboiled for 2 different times. Three rice cultivars were used.

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Introduction: Globally, smoking causes several health risks, burdening public health and economic productivity. Evaluating employees' smoking cessation tendencies is crucial for companies and the nation. Therefore, this study examines the relationship between sociodemographic factors and three key determinants of smoking cessation: health literacy, decision balance, and self-efficacy among company employees.

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The present study successfully removed heavy metals from industrial effluent using nanochitosan-coated cotton fiber (NCCF) crosslinked with citric acid, demonstrating the potential of advanced technologies in removing heavy metals from large amounts of wastewater caused by the world's unchecked population growth and widespread industrialization that has caused pollution. Structural, morphological, and thermal properties of NCCF were determined. Results revealed that the nanochitosan component improves the adsorption capacity of cotton fiber (CF) through the increased surface area and porosity of NCCF.

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Background: Food insecurity (FIS) affects around 25% of Bangladesh's population, and data from developed nations report higher FIS rates among individuals with type 2 diabetes (T2D), potentially worsening glycemic control. The importance of FIS to T2D has not been studied in developing countries such as Bangladesh, with substantial disparities in healthcare access, especially between rural and urban areas. We evaluated the relationships between food insecurity and glycemic control in the context of area of residence among individuals with T2D in Bangladesh.

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Optical microcavities are widely used to confine photons for exciton-polariton formation. However, their compact design often imposes limitations on spatial freedom, particularly in controlling the cavity length with the nanometer precision required for effective coupling with excitons. Existing methods for tuning resonances by integrating cavities with dynamic structures often lack sufficient resolution or a complex operation.

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Groundwater quality in the drought-prone Thakurgaon District, Northwestern Bangladesh, is deteriorating due to a combination of natural and anthropogenic factors. This study evaluates the key drivers of groundwater quality degradation by employing ecotoxicological risk indices, such as the Heavy Metal Pollution Index (HPI), Heavy Metal Evaluation Index (HEI), and Nemerow's Pollution Index (NPI). An innovative fuzzy logic approach is used to integrate these indices and reduce uncertainty, while Automatic Linear Modeling (ALM) predicts the primary impacts on the Fuzzy Groundwater Quality Index (FGWQI).

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The present study is to develop a cost-effective, non-destructive and rapid method for quantification of syringyl/guaiacyl (S/G) ratio content in non-wood lignin, which is based on FT-NIR spectroscopic data and chemometric modelling techniques. The S/G ratio in 22 non-wood lignins was determined by wet chemical method. Then the same samples were run with FT-NIR, and the spectroscopic data were pre-processed with Savitzky-Golay (S-G) on their 1st and 2nd derivatives.

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The phosphoinositide 3-kinase (PI3K)/AKT/mammalian target of the rapamycin (mTOR) pathway plays a crucial role in the regulation of autophagy, a cellular mechanism vital for homeostasis through the degradation of damaged organelles and proteins. The dysregulation of this pathway is significantly associated with cancer progression, metastasis, and resistance to therapy. Targeting the PI3K/AKT/mTOR signaling pathway presents a promising strategy for cancer treatment; however, traditional therapeutics frequently encounter issues related to nonspecific distribution and systemic toxicity.

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Shorter telomere length (TL) is associated with an increased risk for developing chronic or age-related diseases in adults. The process of telomere shortening is accelerated in response to stress and is well characterized in adult populations from high-income countries. Prior studies suggest the relationship between stress, shorter TL, and disease risk initiates in early life.

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Tau protein accumulation is linked to dementia progression in Alzheimer's disease (AD), with potential co-pathologies contributing to it. The progression of dementia in AD patients varies between individuals, and the association between co-pathology and heterogeneity in dementia progression rate remains unclear. We used longitudinal cohort data, postmortem brain tissues, and biochemical methods such as immunoassays and proteomic profiling to investigate the molecular components associated with progression rate.

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Pseudomonas putida is one of the emerging pathogens responsible causing mastitis in lactating animals. This study investigated the prevalence, antimicrobial resistance (AMR), genetic diversity and virulence factor genes (VFGs) to highlight the pathogenic potentials of P. putida strains isolated from milk, feces and farm soil of bovine clinical mastitis (CM).

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While studies from high-income countries have shown an association between adolescents' poor dietary habits and a lack of quality sleep, there is a dearth of similar data from developing nations. This study intends to investigate the relationship between the consumption of carbonated soft drinks and fast food and sleep disturbances linked to anxiety in school-going adolescents in Bangladesh. The data used for this study came from the 2014 Bangladesh Global School-based Health Survey.

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This study synthesized eighteen phenyl and furan rings containing thiazole Schiff base derivatives 2(a-r) in five series, and spectral analyses confirmed their structures. The in vitro antibacterial activities of the synthesized analogs against two gram-positive and two gram-negative bacteria were evaluated by disk diffusion technique. Compounds (2d) and (2n) produced prominently high zone of inhibition with 48.

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Metformin, initially prescribed as an oral hypoglycemic medication for type 2 diabetes, has recently gained attention for its potential anticancer effects. Its history dates to 1918, when guanidine, a component of the traditional European herb Galega officinalis, was found to reduce glycemia. This review precisely examines the mechanisms underlying Metformin's anticancer effects across various neoplastic conditions.

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Background: Bangladesh underwent four waves of the coronavirus disease 2019 (COVID-19) pandemic. Analysing them is essential for understanding changes in viral behaviour, disease patterns, severity, and response to treatment. Nevertheless, data are scarce in low- and middle-income countries.

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Introduction: Mature adults often exhibit higher pain thresholds than younger individuals. However, this phenomenon is poorly understood, especially with regards to peripheral nervous system signaling.

Objectives: We investigated the involvement of amyloid beta (Aβ) in regulating heat pain sensitivity within the dorsal root ganglion (DRG) during adult maturation.

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Introduction: The aging of the global population has led to an increased prevalence of cancer among older adults, particularly in Asia and in low- and middle-income countries. This demographic shift presents unique challenges to healthcare delivery, especially in developing countries like Bangladesh. This study aims to analyze survival outcomes and epidemiological patterns of elderly cancer patients in Bangladesh, addressing a critical knowledge gap in geriatric oncology in low- and middle-income countries METHODS: A 27-month prospective cohort study, conducted from October 2021 to January 2024 across three hospitals in Bangladesh, included 862 cancer patients aged 60 and older, 581 of whom completed the full study period.

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Groundwater is considered a significant source of drinking water around the world. However, the naturally occurring trace elements, mostly As, B, Fe, Mn, Cu, and Zn are proven to deteriorate the groundwater quality. This study aimed to evaluate the seasonal distribution of trace metals and NO in groundwater and the associated risk to human health in the coastal region of Bangladesh.

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