Corticosteroids Resistance Diseases Review

Glucocorticoids, the main anti-inflammatory medication, are useful for the treatment of many diseases such as inflammation, respiratory diseases, malignancies, etc., but unfortunately, glucocorticoids cannot inhibit inflammation by various mechanisms. The definition of glucocorticoid resistance is loss of efficacy or reduced sensitization over time and increases due to chronic inflammation. It is affecting 30% of glucocorticoid-treated patients. It shows an essential restriction in the treatment of chronic inflammation and malignancies diseases and can be due to the impairment of various mechanisms along the signaling pathway of glucocorticoids. However, glucocorticoids dissociation has been improved to reduce the SE, DIGRAs “receptor of glucocorticoid dissociation agonists” are a group of trial drugs developed to share various wanted as an anti-inflammatory, suppress immunity, or properties of anti-malignancies of traditional steroids medications with lesser adverse events, but it is so hard to dissociate anti-inflammatory effects from adverse effects. Cases with glucocorticoid unresponsive should use other medications with similar mechanisms in inflammation as well as drugs that may change the molecular mechanism of resistance to glucocorticoid. Here, we discuss the evidence that exists for the hypothesis that individual glucocorticoid resistance underlies the problem

45S5 Bioglass paste is capable of protecting the enamel surrounding orthodontic brackets against erosive challenge

OBJECTIVES: This study aimed at evaluating the effect of using a 45S5 bioglass paste and a topical fluoride as protective agents against acidic erosion (resembling acidic beverage softdrinks intake) for enamel surrounding orthodontic brackets. MATERIALS AND METHODS: Sample of 21 freshly extracted sound incisor and premolar teeth was randomly divided into three equal groups: a bioglass group (Bioglass) (NovaMin, 5-mm average particle, NovaMin Technology), a Fluoride group (Fluoride) (Gelato APF Gel, Keystone Industries), and a control group (Control). Orthodontic brackets were bonded to the utilized teeth usingMIP (Moisture Insensitive Primer) and Transbond PLUS color change adhesive. All specimens were challenged by 1% citric acid for 18 min. The top enamel surfaces next to the orthodontic brackets were examined by SEM-EDS. Wilcoxon Signed-Rank test was used to compare the area covered by the 45S5 bioglass paste before/after erosion P < 0.05. RESULTS: 45S5 bioglass paste application resulted in the formation of an interaction layer that significantly resisted erosion challenge P < 0.05. The fluoride and control specimens showed signs of erosion of the enamel next to the orthodontic brackets (P < 0.05). CONCLUSION: 45S5 bioglass paste can efficiently protect the enamel surfaces next to orthodontic brackets for acidic erosion challenges