Abdur Rahman

Mr. Abdur Rahman

Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
orcid

Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 May 2023 in Molecules
Verified
Journal Article
Open access
PDF file
Abdur RahmanAbdur Rahman
Abdur Rahman
GRGauhar Rehman
Gauhar Rehman
NSNasrullah Shah
Nasrullah Shah
Muhammad HamayunMuhammad Hamayun
Muhammad Hamayun
Sajid AliSajid Ali
Sajid Ali
Abdulwahed Fahad AlrefaeiAbdulwahed Fahad Alrefaei
Abdulwahed Fahad Alrefaei
Green synthesis is the most effective and environmentally friendly way to produce nanoparticles. The present research aimed at the biosynthesizing of silver nanoparticles (AgNPs) using Tribulus terrestris seed extract as the reducing and stabilizing agent and investigating their anti-diabetic properties. Fourier transformation infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-Vis spectroscopy were used to analyze the synthesized silver nanoparticles from Tribulus terrestris (TT-AgNPs). The spectroscopic characterization revealed a surface Plasmon resonance band at 380 nm, which verified the development of TT-AgNPs. The transmittance peaks were observed at 596, 1450, 1631, 2856, 2921, and 3422 cm−1 through the FTIR spectrophotometer. The XRD spectrum showed four distinct diffraction peaks in the 2θ range at 20° to 60°. Intense peaks were at 26.32°, 30.70°, 44.70°, 56.07°, 53.75°, 66.28°, and 75.32°. The SEM analysis revealed that the prepared TT-AgNPs were clustered loosely with a smooth and spherical structure and were of relatively uniform size. The in vitro antidiabetic potential of TT-AgNPs was assessed by using glucose yeast uptake, glucose adsorption, and alpha-amylase assays. TT-AgNPs showed the highest activity (78.45 ± 0.84%) of glucose uptake by yeast at 80 µg/mL. In the glucose adsorption assay, the highest activity of TT-AgNPs was 10.40 ± 0.52% at 30 mM, while in the alpha-amylase assay, TT-AgNPs exhibited the maximum activity of 75.68 ± 0.11% at 100 µg/mL. The results indicate a substantial anti-diabetic effect of the TT-AgNPs. Furthermore, the in vivo antidiabetic study was performed on TT-AgNPs in streptozotocin-induced diabetic mice. After receiving TT-AgNPs treatment for 30 days, the mice were sacrificed for biochemical and histological analyses of pancreatic and liver samples, which demonstrated a good improvement when compared to the control group. Mice treated with TT-AgNPs showed a significant drop in blood sugar levels, showing that the biosynthesized TT-AgNPs have effective anti-diabetic properties.

25 July 2022 in Molecules
Verified
Journal Article
Open access
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Habib ullahHabib ullah
Habib ullah
IUIkram Ullah
Ikram Ullah
GRGauhar Rehman
Gauhar Rehman
Muhammad HamayunMuhammad Hamayun
Muhammad Hamayun
Sajid AliSajid Ali
Sajid Ali
ILIn-Jung Lee
In-Jung Lee
Epilepsy is a neurological disorder involving persistent spontaneous seizures and uncontrolled neuronal excitability that leads to cognitive impairments and blood–brain barrier (BBB) disruption. Currently available antiepileptic drugs present side effects and researchers are trying to discover new agents with properties to overcome these drawbacks. The aim was to synthesize magnesium oxide (MgO) and zinc oxide (ZnO) nanoparticles from Datura alba fresh leaf extracts and evaluate their anti-epileptic potential in mice kindling or a repetitive seizures model. The phytoassisted synthesized nanoparticles were characterized using spectroscopy; FT-IR, XRD, SEM, and EDX. Analysis of the NPs confirmed the crystalline pleomorphic shape using the salts of both zinc and magnesium possibly stabilized, functionalized and reduced by bioactive molecules present in plant extract. By using several characterization techniques, NPs were confirmed. UV-Vis spectroscopy of biologically produced ZnO and MgO revealed distinctive peaks at 380 nm and 242 nm, respectively. Our findings categorically demonstrated the reductive role of biomolecules in the formation of ZnO and MgO NPs. The mice kindling model was induced using seven injections of Pentylenetetrazole (PTZ, 40 mg/kg, i.p) for 15 days alternatively. The results showed that mice post-treated with either ZnO or MgO nanoparticles (10 mg/kg, i.p) significantly improved in respect of behavior and memory as confirmed in the Morris water maze (MWM), open field (OF), novel object recognition (NOR) test compared with PTZ treated mice. Furthermore, the ZnO and MgO nanoparticle treatment also maintained the integrity of the BBB, reducing the leakage, as confirmed by Evans blue dye (EBD) compared with PTZ treated mice only. In summary, the current finding demonstrates that green synthesized ZnO and MgO nanoparticles have neuroprotective, ant-epileptic potential, molecular mechanisms, and clinical implications need to be further explored.

1 January 2024 in Brazilian Journal of Biology
Verified
Journal Article
Open access
PDF file
GRGauhar Rehman
Gauhar Rehman
IKIrfan Khattak
Irfan Khattak
Muhammad HamayunMuhammad Hamayun
Muhammad Hamayun
Abdur RahmanAbdur Rahman
Abdur Rahman
MHM. Haseeb
M. Haseeb
RPR. Pervaiz
R. Pervaiz
Mining is vital for human sustenance and a crucial sector in the state economy. However, its impacts on the environment and biodiversity cannot be underestimated. Which are potent to the attract government’s attention. Environment and wildlife are subject to the harmful impacts of mining and its related activities. In this study, districts, namely Mardan and Mohmand have been targeted with respect to mining impacts. The assessment was carried out on wildlife adversely affected by the mining sector. The fauna has been keenly observed to bring the calculated risks and threat perception of the regional wildlife. Total 9 species of mammals, 21 species of birds, were recorded in District Mardan. While in District Mohmand 2 species of mammals, 9 species of birds, and 4 species of reptiles were studied. The Study explored that mining primarily responsible for land degradation. Which lead to food and agriculture losses. Several other factors like blasting, pollution, hunting, deforestation, habitat loss was also observed. Deforestation surfaced one of the major causes for extinction of fauna in the said region. preemptive measures are needed to seize the man-made catastrophe.

10 February 2023 in Processes
Verified
Journal Article
Open access
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Abdur RaufAbdur Rauf
Abdur Rauf
Umer RashidUmer Rashid
Umer Rashid
ZSZafar Ali Shah
Zafar Ali Shah
GRGauhar Rehman
Gauhar Rehman
KBKashif Bashir
Kashif Bashir
Giovanni RibaudoGiovanni Ribaudo
Giovanni Ribaudo
Inflammation is a complex response of the human organism and relates to the onset of various disorders including diabetes. The current research work aimed at investigating the anti-inflammatory and anti-diabetic effects of ferruginan, a compound isolated from Olea ferruginea. Its in vitro anti-inflammatory activity was determined by using the heat-induced hemolysis assay, while the anti-diabetic effect of the compound was studied by the yeast cell glucose uptake assay. Ferruginan exhibited a maximum of 71.82% inhibition of inflammation and also increased the uptake of glucose by yeast cells by up to 74.96% at the highest tested concentration (100 µM). Moreover, ferruginan inhibited α-amylase dose-dependently, by up to 75.45% at the same concentration. These results indicated that ferruginan possesses promising anti-inflammatory and anti-diabetic properties in vitro, even if at high concentrations. To provide preliminary hypotheses on the potentially multi-target mechanisms underlying such effects, docking analyses were performed on α-amylase and on various molecular targets involved in inflammation such as 5′-adenosine monophosphate-activated protein kinase (AMPK, PDB ID 3AQV), cyclooxygenase (COX-1, PDB ID 1EQG, and COX-2, 1CX2), and tumor necrosis factor alpha (TNF-α, PDB ID 2AZ5). The docking studies suggested that the compound may act on α-amylase, COX-2, and AMPK.

1 January 2002 in Australasian Journal of Water Resources
Verified
Journal Article
Closed access
RNR J Nathan
R J Nathan
Abdur RahmanAbdur Rahman
Abdur Rahman
SBS Bagg
S Bagg
HGHilary Green
Hilary Green
This paper describes the developn1ent of a procedure for the identification of regions of low flow homogeneity for the operational specification of environmental flows. The objective of the procedure is to assign ungauged catchments to a small number of “indicator” streamflow gauges that can be considered to behave in a similar manner during low flow conditions. The identification of homogeneous regions involved the selection of appropriate candidate variables suited to characterising catchment similarity. The allocation of ungauged catchments to indicator stations was achieved by reducing the selected variables down to two factors using principal component analysis. A classification tree was then formulated to enable regional group membership to be determined. The allocation method provides an objective basis for determining the most appropriate indicator gauging station for an ungauged catchment, and also enables the definition of homogeneous regions to be determined.