10 research outputs found

    Topical therapy in atopic dermatitis in children

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    Atopic dermatitis (AD) is a common, chronic childhood skin disorder caused by complex genetic, immunological, and environmental interactions. It significantly impairs quality of life for both child and family. Treatment is complex and must be tailored to the individual taking into account personal, social, and emotional factors, as well as disease severity. This review covers the management of AD in children with topical treatments, focusing on: education and empowerment of patients and caregivers, avoidance of trigger factors, repair and maintenance of the skin barrier by correct use of emollients, control of inflammation with topical corticosteroids and calcineurin inhibitors, minimizing infection, and the use of bandages and body suits

    Patterns of periodic acid–schiff staining in subepidermal bullous disorders with emphasis on bullous pemphigoid

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    Background: Direct immunofluorescence (DIF) including salt split skin technique is quintessential in the diagnosis of subepidermal bullous disorders. These techniques are expensive and require technical expertise, limiting their diagnostic utility. The property of periodic-acid–Schiff to stain the basement membrane and the patterns produced by it was observed in a cohort of subepidermal bullous disorders, to see if it offers an alternative cost-effective testing method. Materials and Methods: This was a retrospective, observational study conducted in the department of general pathology, in a tertiary care medical center, over a period of 4 years. Only those cases for which paraffin sections, DIF and direct salt split skin immunofluorescence technique were available were included. The levels of anti-bullous pemphigoid (BP) antibodies were collected where available. Results: Of the 21 cases analyzed, 15 were BP, two each of epidermolysis bullosa acquisita (EBA) and lichen planus pemphigoides (LPP), one each of porphyria cutanea tarda (PCT), and bullous systemic lupus erythematosus (SLE). All the cases of BP, LPP and EBA showed a floor pattern of staining with periodic acid–Schiff (PAS) stain. Roof pattern of staining was observed in bullous SLE and PCT. PAS was found to be useful in diagnosing BP, especially in conjunction with an eosinophil rich bulla and anti-BP antibodies. Conclusion: We found that PAS stain could be an adjunct to hematoxylin and eosin stain when the diagnosis of BP is in doubt. However, larger sample size is needed to study its utility in other subepidermal bullous disorders

    Comparative analysis of glyoxalase pathway genes in Erianthus arundinaceus and commercial sugarcane hybrid under salinity and drought conditions

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    Abstract Background Glyoxalase pathway is a reactive carbonyl species (RCS) scavenging mechanism involved in the detoxification of methylglyoxal (MG), which is a reactive α-ketoaldehyde. In plants under abiotic stress, the cellular toxicity is reduced through glyoxalase pathway genes, i.e. Glyoxalase I (Gly I), Glyoxalase II (Gly II) and Glyoxalase III (Gly III). Salinity and water deficit stresses produce higher amounts of endogenous MG resulting in severe tissue damage. Thus, characterizing glyoxalase pathway genes that govern the MG metabolism should provide new insights on abiotic stress tolerance in Erianthus arundinaceus, a wild relative of sugarcane and commercial sugarcane hybrid (Co 86032). Results In this study, three glyoxalase genes (Glyoxalase I, II and III) from E. arundinaceus (a wild relative of sugarcane) and commercial sugarcane hybrid (Co 86032) were characterized. Comparative gene expression profiles (qRT-PCR) of Glyoxalase I, II and III under salinity and water deficit stress conditions revealed differential transcript expression with higher levels of Glyoxalase III in both the stress conditions. Significantly, E. arundinaceus had a higher expression level of glyoxalase genes compared to commercial sugarcane hybrid. On the other hand, gas exchange parameters like stomatal conductance and transpiration rate were declined to very low levels under both salt and drought induced stresses in commercial sugarcane hybrid when compared to E. arundinaceus. E. arundinaceus maintained better net photosynthetic rate compared to commercial sugarcane hybrid. The phylogenetic analysis of glyoxalase proteins showed its close evolutionary relationship with Sorghum bicolor and Zea mays. Glyoxalase I and II were predicted to possess 9 and 7 isoforms respectively whereas, Glyoxalase III couldn’t be identified as it comes under uncharacterized protein identified in recent past. Chromosomal mapping is also carried out for glyoxalase pathway genes and its isoforms. Docking studies revealed the binding affinities of glyoxalase proteins in both E. arundinaceus and commercial sugarcane hybrid with their substrate molecules. Conclusions This study emphasizes the role of Glyoxalase pathway genes in stress defensive mechanism which route to benefit in progressive plant adaptations and serves as potential candidates for development of salt and drought tolerant crops
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