The integrated stress response (ISR) attenuates the rate of protein synthesis while inducing expression of stress proteins in cells. Various insults activate kinases that phosphorylate the GTPase eIF2 leading to inhibition of its exchange factor eIF2B. Vanishing White Matter (VWM) is a neurological disease caused by eIF2B mutations that, like phosphorylated eIF2, reduce its activity.
View Article and Find Full Text PDFJ Pharmacol Toxicol Methods
December 2018
Introduction: The adenine model of kidney disease typically involves dietary delivery of adenine over several weeks. This model can be variable in its disease progression and can result in significant mortality. In the current study, the amount of adenine delivered to rats was controlled by utilizing oral gavage administration over a short period in an attempt to induce robust renal pathology while addressing variability and viability of the animals.
View Article and Find Full Text PDFOsteoarthritis (OA) is a degenerative form of arthritis that can result in loss of joint function and chronic pain. The pathological pain state that develops with OA disease involves plastic changes in the peripheral and central nervous systems, however, the cellular mechanisms underlying OA are not fully understood. We characterized the medial meniscal tear (MMT) surgical model and the intra-articular injection of monosodium iodoacetate (MIA) chemical model of OA in rats.
View Article and Find Full Text PDFJ Basic Clin Physiol Pharmacol
June 2018
Background: Losartan, a blocker of the angiotensin II type I receptor, is an important part of the standard of care for diabetic nephropathy (DN). The obese ZSF-1 rats display many aspects of the clinical features of human Type II DN. The current study was designed to examine the treatment effects of losartan on obese ZSF-1 rats and to evaluate the impact of the onset of dosing on efficacy.
View Article and Find Full Text PDFTargeted delivery of a therapeutic agent to a site of pathology to ameliorate disease while limiting exposure at undesired tissues is an aspirational treatment scenario. Targeting diseased kidneys for pharmacologic treatment has had limited success. We designed an approach to target an extracellular matrix protein, the fibronectin extra domain A isoform (FnEDA), which is relatively restricted in distribution to sites of tissue injury.
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