TY - BOOK AU - Nesma Mohamed Esmat Aboelnasr AU - Hanan Elabhar , AU - Salwa Mohamed Nofal , AU - Sawsan Salah Elden , TI - Possible effect of an angiotensin II receptor blocker against hepatic non- enzymatic glycation associated with insulin resistance-induced in rats / PY - 2020/// CY - Cairo : PB - Nesma Mohamed Esmat Aboelnasr , KW - Diabetes KW - Insulin resistance KW - Olmesartan N1 - Thesis (Ph.D.) - Cairo University - Faculty of Pharmacy - Department of Pharmacology and Toxicology; Issued also as CD N2 - Olmesartan (OLM), an angiotensin receptor blocker, was tested against diabetes/insulin resistance (IR) models associated with renal/cardiovascular complications. Methods: we tested its potential role against diabetes-induced hepatic hitches using an IR/type2 diabetic (IR/D) model induced by high fat/high fructose diet for 7 weeks + a single sub-diabetogenic dose of streptozotocin (35mg/ kg; i.p). IR/D rats were orally treated with OLM (10 mg/kg), pioglitazone (PIO; 5 or 10 mg/kg) or their combinations for 4 consecutive weeks. OLM alone opposed the detrimental effects of IR/D; it significantly improved metabolic parameters, liver function, and abated hepatic oxidative stress, and inflammatory cytokine interleukin-6 (IL-6) and its upstream mediator nuclear factor kappa B. Consequently, OLM turned off the downstream cue p- Jak2/STAT3/SOCS3. Moreover, it suppressed the elevated AGE/RAGE/p-JNK pathway and increased the PPAR-{u0264} /adiponectin cue to signify its anti-inflammatory and anti-oxidant capacity (GSH, MDA). Nevertheless, co-administration of OLM to PIO showed a synergistic improvement in all the aforementioned parameters in a dose dependent manner. Additionally, OLM with PIO 10 provoked a surge in hepatic PPAR-{u0264} and adiponectin (5 and 6 folds) with a sharp decrease of about 85% in the NF-mB/IL-6/p-STAT3/SOCS3 pathway. These effects were confirmed by the histopathological study. In conclusion, OLM and its combination with PIO enhanced insulin sensitivity and guarded against hepatic complications associated with type 2 diabetes probably via modulating various inter-related pathways; namely, metabolic alteration, renin-angiotensin system, inflammatory trajectories, as well as oxidative stress. This study manifests the potential synergistic effects of OLM as an adjuvant therapy to the conventional antidiabetic therapies UR - http://172.23.153.220/th.pdf ER -