Browsing by Author "Ali, Abid"

Now showing 1 - 4 of 4

Association of Type 2 Diabetes and Hepatitis C Virus Infection in Pakistani Population
(Daffodil International University, 22-07-14) Safi, Sher Zaman; Shah, Humaira; Imran, Muhammad; Noreen, Mamoon; Latif, Zahira; Rehman, Fouzia; Ali, Abid; Muhammad, Naushad; Waheed, Yasir; Emran, Talha Bin; Khan, Shah Alam; Subramaniyan, Vorticella; Ismail, Ikram Shah Bin
In Pakistan and other developing countries, the available data on the association of T2DM and HCV is limited. We therefore made an attempt to report the association of HCV and diabetes in Pakistani population through this meta-analysis. HCV and diabetes related studies were identified using various key words, from a number of databases including CINAHL, PubMed, Web of Science and Embase. Using RevMan5, the main outcome was regarded as type 2 diabetes associations with hepatitis c virus infection in Pakistan. Independent analyses were made for “HCV in diabetic patients” and “diabetes cases in hepatitis C virus patients”. Using random effect model, odds ratios were calculated with 95% CIs (dichotomous data). I2 statistics were used to calculate heterogeneity. From a total of 53 studies, we finally selected 6 studies for the meta-analysis. Using random effects model, hepatitis c virus patients in 3 studies (n = 1,902) demonstrated that HCV is a risk factor in developing diabetes, contrary to patients with no HCV infection (OR 0.01, 95% CI: 0.00-0.06, I2 = 0%; RR 0.01, 95% CI: 0.00-0.07, I2 = 0%). The remaining 3 studies (n = 13,710) had reported HCV infections in type 2 diabetic patients and patients with no diabetes. Similarly, our meta-analysis revealed higher prevalence of HCV infections in patients with type 2 diabetes (OR 0.7, 95% CI: 0.17-0.42, I2 = 32%; RR 0.30, 95% CI: 0.20-0.46, I2 = 32%) as compared to patients with no type 2 diabetes mellitus. Our meta-analysis demonstrates a significant link between HCV and T2DM. Further studies are recommended with adequate sample sizes. © 2022, Prince of Songkla University. All rights reserved.
Heparin-Loaded Alginate Hydrogels
(Scopus, 22-10-28) Nawaz, Ayesha; Safi, Sher Zaman; Sikandar, Shomaila; Zeeshan, Rabia; Zulfiqar, Saima; Mehmood, Nadia; M Alobaid, Hussah; Rehman, Fozia; Imran, Muhammad; Tariq, Muhammad; Ali, Abid; Emran, Talha Bin; Yar, Muhammad
Background: Chronic wounds continue to be a global concern that demands substantial resources from the healthcare system. The process of cutaneous wound healing is complex, involving inflammation, blood clotting, angiogenesis, migration and remodeling. In the present study, commercially available alginate wound dressings were loaded with heparin. The purpose of the study was to enhance the angiogenic potential of alginate wound dressings and analyze the antibacterial activity, biocompatibility and other relevant properties. We also aimed to conduct some molecular and gene expression studies to elaborate on the mechanisms through which heparin induces angiogenesis. Methods: The physical properties of the hydrogels were evaluated by Fourier transform infrared spectroscopy (FTIR). Swelling ability was measured by soaking hydrogels in the Phosphate buffer at 37 °C, and cell studies were conducted to evaluate the cytotoxicity and biocompatibility of hydrogels in NIH3T3 (fibroblasts). Real-time PCR was conducted to check the molecular mechanisms of heparin/alginate-induced angiogenesis. The physical properties of the hydrogels were evaluated by Fourier transform infrared spectroscopy (FTIR). Results: FTIR confirmed the formation of heparin-loaded alginate wound dressing and the compatibility of both heparin and alginate. Among all, 10 µg/mL concentration of heparin showed the best antibacterial activity against E. coli. The swelling was considerably increased up to 1500% within 1 h. Alamar Blue assay revealed no cytotoxic effect on NIH3T3. Heparin showed good anti-microbial properties and inhibited the growth of E. coli in zones with a diameter of 18 mm. The expression analysis suggested that heparin probably exerts its pro-angiogenetic effect through VEGF and cPGE. Conclusions: We report that heparin-loaded alginate dressings are not cytotoxic and offer increased angiogenic and anti-bacterial potential. The angiogenesis is apparently taken through the VEGF pathway.
Mechanisms of β-Adrenergic Receptors Agonists in Mediating Pro and Anti-Apoptotic Pathways in Hyperglycemic Müller Cells
(Daffodil International University, 22-08-04) Saf, Sher Zaman; Saeed, Laiba; Shah, Humaira; Latif, Zahina; Ali, Abid; Imran, Muhammad; Muhammad, Nawshad; Emran, Talha Bin; Subramaniyan, Vetriselvan; Ismail, Ikram Shah Bin
Background: The current study aimed to investigate the stimulatory effect of beta-adrenergic receptors (β-ARs) on brain derived neurotropic factor (BDNF) and cAMP response element binding protein (CREB). Methods: Human Müller cells were cultured in low and high glucose conditions. Cells were treated with xamoterol (selective agonist for β1-AR), salmeterol (selective agonist for β2-AR), isoproterenol (β-ARs agonist) and propranolol (β-ARs antagonist), at 20 µM concentration for 24 h. Western Blotting assay was performed for the gene expression analysis. DNA damage was evaluated by TUNEL assay. DCFH-DA assay was used to check the level of reactive oxygen species (ROS). Cytochrome C release was measured by ELISA. Results: Xamoterol, salmeterol and isoproterenol showed no effect on Caspase-8 but it reduced the apoptosis and increased the expression of BDNF in Müller cells. A significant change in the expression of caspase-3 was observed in cells treated with xamoterol and salmeterol as compared to isoproterenol. Xamoterol, salmeterol and isoproterenol significantly decreased the reactive oxygen species (ROS) when treated for 24 hours. Glucose-induced cytochrome c release was disrupted in Müller cells. Conclusion: β-ARs, stimulated by agonist play a protective role in hyperglycemic Müller cells, with the suppression of glucose-induced caspase-3 and cytochrome c release. B-Ars may directly mediate the gene expression of BDNF.
Surface Engineered Mesoporous Silica Carriers for the Controlled Delivery of Anticancer Drug 5-Fluorouracil: Computational Approach for the Drug-Carrier Interactions Using Density Functional Theory
(Frontier Scientific Publishing, 2023-04-13) Rehman, Fozia; Khan, Asif Jamal; Sama, Zaib Us; Alobaid, Hussah M.; Gilani, Mazhar Amjad; Safi, Sher Zaman; Muhammad, Nawshad; Rahim, Abdur; Ali, Abid; Guo, Jiahua; Arshad, Muhammad; Emran, Talha Bin
"Introduction: Drug delivery systems are the topmost priority to increase drug safety and efficacy. In this study, hybrid porous silicates SBA-15 and its derivatives SBA@N and SBA@3N were synthesized and loaded with an anticancer drug, 5-fluorouracil. The drug release was studied in a simulated physiological environment. Method: These materials were characterized for their textural and physio-chemical properties by scanning electron microscopy (SEM), nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FTIR), small-angle X-ray diffraction (SAX), and nitrogen adsorption/desorption techniques. The surface electrostatics of the materials was measured by zeta potential. Results: The drug loading efficiency of the prepared hybrid materials was about 10%. In vitro drug release profiles were obtained in simulated fluids. Slow drug release kinetics was observed for SBA@3N, which released 7.5% of the entrapped drug in simulated intestinal fluid (SIF, pH 7.2) and 33% in simulated body fluid (SBF, pH 7.2) for 72 h. The material SBA@N presented an initial burst release of 13% in simulated intestinal fluid and 32.6% in simulated gastric fluid (SGF, pH 1.2), while about 70% of the drug was released within the next 72 h. Density functional theory (DFT) calculations have also supported the slow drug release from the SBA@3N material. The release mechanism of the drug from the prepared carriers was studied by first-order, second-order, Korsmeyer–Peppas, Hixson–Crowell, and Higuchi kinetic models. The drug release from these carriers follows Fickian diffusion and zero-order kinetics in SGF and SBF, whereas first-order, non-Fickian diffusion, and case-II transport were observed in SIF. Discussion: Based on these findings, the proposed synthesized hybrid materials may be suggested as a potential drug delivery system for anti-cancer drugs such as 5-fluorouracil."