Background: Apigenin is known to have a broad-spectrum efficacy in oxidative stress and conditions due to inflammation, although weak absorption, fast metabolic rate and a fast elimination (systemic) limit the pharmacological efficacy of this drug. Hence, we propose the usage of highly bioavailable Apigenin-solid lipid nanoparticles (SLNPs) to recognize such limitations. The defensive function of Apigenin-SLNPs on renal damage induced by streptozotocin (STZ) in animals was studied. Materials and Methods: We initially injected the rats with 35 mg kg −1 streptozocin intraperitoneally, and after 7 days, the rats were then injected 150 mg kg −1 of metformin intragastrically followed by a once-daily intragastric dose of Apigenin-SLNP (25 or 50 mg kg −1) for a continuous period of 30 days. We then measured the level of insulin and blood glucose, superoxide dismutase, catalase and malondialdehyde in the tissues of the kidney. We also observed messenger-RNA expression of Interleukin-1β, Interleukin-6 and Tumor Necrosis Factor-alpha in renal tissue through RT-PCR technique. Moreover, H&E staining and Western blotting observed the histopathological variations and protein expression of nuclear factor erythroid 2-related factor 2/heme oxygenase/Nuclear Factor-κB signaling pathway, respectively. Results: An enhancement in the expressing of nuclear factor erythroid 2-related factor 2 and heme oxygenase-1 and a suppression in the expression of Nuclear Factor-κB occurred due to Apigenin-SLNPs treatment, which was a result of the protective mechanism of Apigenin-SLNPs which is because of not only its anti-inflammatory function (by inhibition of release of inflammatory factors) but also their anti-oxidant activity (through reduction of lipid peroxidation production). Conclusion: We found that a protective effect on diabetic nephropathy was shown due to Apigenin-SLNPs, in rats induced with streptozocin maybe through the pathway of nuclear factor erythroid 2-related factor 2/heme oxygenase-1/Nuclear Factor-κB.
Purpose
The purpose of this paper is to investigate how Pakistani banks manage their portfolios (lending vs investment) when the economic indicators are not supportive. This study investigates three aspects of the banking system in Pakistan – prevalence of disintermediation, post-crisis profitability orientation and depositor protection by financial system in unfavorable conditions.
Design/methodology/approach
This study is limited to identifying the key economic and financial drivers behind disintermediation and its subsequent impact on banks’ profitability and depositors’ protection. GLS panel regressions and Engle–Granger causality test as specified by the error correction model have been used to test the major hypothesis of this study.
Findings
This study shows that small banks have been shifting major part of their portfolios toward risk-free investments to be able to maintain their profitability more efficiently and effectively, like large banks. The study also observes that significant pairing causality exists between gross credit loans and investments confirming disintermediation hypothesis for all types of banks except Islamic or Sharia compliant banks, whereas for significant pairing causality, the results are mixed for remaining variables among gross credit loans as a proportion of assets and economic variables that include GDP growth, unemployment, KSE-100 and SBP policy rate. It is also confirmed by the results that disintermediation improves banks profitability and depositor protection, thus providing a good rationale and justification to banks for opting it.
Originality/value
The study focuses on the impact of structural changes in portfolios only of commercial banks’ revenue-generating assets not including other financial institutions as a part of banking system. Furthermore, data are extracted from balance sheets and is the sole property of corresponding author.
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